S V580|i0Z8VZ Anthony Ita BrookfIeId, 1655 Revere You’ve got th e d esire to be a Champion.
control buttons and servo reverse 5 channel Flclicopler sys switching. And serious fliers can also tern. Write now for compl appreciate our water and dust proof, dual technical data, because ball bearing S121 servos, modular RF the sky's not the limit an boards and direct servo control. more. ΛΙΙ J-aeHc» \ysicim use The J-series Futabas clianuť Kl module* for In are available in 4.5,6 and riio d iil.il io n 8 channel systems, plus a Dreams of conquering the skies are what makes a winning pattern flier. But even the best contest competitors know that you've also got to have the right equip ment. Futaba's J-series radio control systems are just that. Pure, state-of-the- art electronics with high-performance features like full programming capability, dual mixing circuitry, roll and snap roll
behind tin RJiV* batik panel art? 20 programming control «-(ling*. Including ' uual rate* ir»d l poll-lino. irify lunet iont·. See it at your local Hobby Shop. They serve you better... they can provide assistance, answers and service! MATCHED FINISH SYSTEM”- A COMPLETELY CORRELATED FINISH SYSTEM all ingredients required to:
COVER K&B FIBERGLASS — 3 weights — highest quality.
K&B SUPER POXY RESIN — easily workable — requires minimum SEAL of sanding — does not become brittle.
K&B PRIMER/PRIMER CATALYST - the last step before PRIME painting — can be brushed on or sprayed — fills every crack - sands extremely easily to a smooth finish.
K&B SUPER POXY PAINT - the final step - 33 Colors - Spray or Brush/Satin or Gloss — unequaled quality — unmatched high PAINT gloss . . . mix and use — faster curing — no hard rubbing — lasts longer — the ultimate in model paint.
K&B MICRO-BALLOONS FILLER — for damage repair or REPAIR smoothing out surfaces.
K&B MIXING CUPS — for your convenience — one ounce, unbreak able, plastic cups accurately graduated with milliliters and fluid ounces— ideal for mixing filler, resin, paint, etc., in small amounts.
K&B ENGINES SUPER POWER PLANTS Κ&Β GLOW PLUGS consistent peak performance r u t L 4 plugs — long reach, or short reach in standard or idle bar — (idle bar is to meet ALL flying needs a "must" for control from low idle 7 blends . . . 4 with X2C oil, 3 with to a constant maximum r.p.m.) castor oil
Here you have it all, everything you need to make your model powerful, dependable, durable — 12 model air plane, car, or boat tops in appearance and tops in performance, plane engines . . . from .19 to .61 (standard and all from K&B, the leader in its Held since 1946. R/C); 4 model marine engines . . . 3 inboards 3.5 to “THE CHOICE OF CHAMPIONS” 7.5 (standard and R/C); 1 outboard 3.5 (standard)
K&B MANUFACTURING 12152 WOODRUFF AVE., DOWNEY, CA. 90241 K - M O D E L OCTOBER 1979
t 'B U IL D E R volume 9, number 93 621 West Nineteenth St., Costa Mesa, California 92627 Phone: (714) 645-8830
STAFF CONTENTS PUBLISHER Walter L. Schroder FEATURES EDITOR Wm. C. N orthrop, Jr. W O R K B E N C H , Bill Northrop...... 6 GENERAL MANAGER . .T H R E E IF B Y A IR ,” letters to the Editor...... 7 Walter L. Schroder O V E R T H E C O U N T E R , Phil Bernhardt ...... 8 ASSISTANT EDITOR R / C W O R L D , Bill Northrop...... 11 Phil Bernhardt F U E L LIN E S , Joe Klause, George Aldrich, Otto Bernhardt . . . 24 ASSISTANT GENERAL MANAGER Anita Northrop HALF-A SCENE, Larry Renger...... 26 ART DEPARTMENT "1 TO 1 ” R /C SCALE, Bob Underwood...... 28 Chuck Blackburn W O R L D W A R II S C R A M B L E , Patricia & Monty Groves 30 Al Patterson T H E F L IG H T IN S T R U C T O R , Dave Brown...... 36 OFFICE STAFF Edie Downs P L U G S P A R K S , John Pond ...... 37 Georgi Gilleran R / C S O A R IN G , Dr. Larry Fogel...... 42 Pat Patton A. Valcarsel PICKIN G A SLOPE SO ARIN G SITE, Dave Thornburg 43 E L E C T R IC P O W E R , Mitch Poling...... 44 CONTRIBUTING EDITORS R / C A U T O N E W S , Chuck Hallum ...... 46 George A ldrich Walt Mooney Dave Brown Mitch Poling CHOPPER CHATTER, John Tucker...... 47 Otto Bernhardt John Pond PRATHER DEEP-VEE REVIEW , Jerry Dunlap...... 48 Rod Carr Fernando Ramos Jerry Dunlap Larry Renger STRICTLY SAIL, Rod Carr...... 50 Larry Fogel Dan Rutherford R/C POW ER BOATI NG, Jerry Dunlap...... 52 Jim Gager Tom Hutchinson Chuck Hallum Dave Thornburg F R EE F L IG H T S C A L E , Fernando Ramos...... 56 Bill Hannan John Tucker HANNAN’S HAN GAR, Bill Hannan...... 58 Joe Klause Bob Underwood M A K IN G B A L S A W H E E L S , Dan Yamada ...... 62 ADVERTISING MANAGER C O N T R O L L IN E , Dan Rutherford...... 63 Walter L. Schroder FR EE F L IG H T , Tom Hutchinson ...... 64
SCALE VIEWS FIAT CR-32 (Part II), Peter Westburg...... 33 R/C MODEL BUILDER (ISSN 0194 7079) is published monthly by RCMB INC., 621 CONSTRUCTION West Nineteenth Street, Costa Mesa, Cali fornia 92627. Phone (714) 645-8830. T H E B IG S T IK , Don Anderson...... 16 P EER LESS " P A N T H E R " O .T ., Walter Schultz...... 40 Subscriptions $20.00 per year, $37.00for two years. Single copies $2.00. Add $3.50 per F IR S T N IG H T , John Godden and Jim Moseley...... 54 year for postage outside the U.S. (except APO and FPO). POLISH PEANUT (LUBLIN R-XII), Walt Mooney .... 59 Copyright 1979 by RCMB INC. All rights reserved. Reproduction without permission prohibited.
Change of address notices must be received six weeks before date of issue that new address takes effect. Send old address with Cover: Jenny Anderson, age 4, serves exaggerate this already huge version of Phil new; old label preferred. Post Office will Kraft's famous Das Ugly Stik, probably the world's most popular (though maybe not not forward copies unless you pay extra the most beautiful) R/C model aircraft. Jenny's father, Don, in collaboration with Mike postage. Duplicate issues cannot be sent. Smith, designed this monster for the currently popular large ignition engines. Construct ion article begins on page 16. Photo by Eric Meyers. Second class postage paid at Costa Mesa, California, and additional offices.
2 R/C MODEL BUILDER inally from Kraft, a quality ready-to-fly electric powered radio Any quality 2-channel radio control set may be used, however, ontrol model aircraft is available. Because it is clean and quiet, the Kraft KP-2A or KP-2AS is recommended. our neighborhood vacant Jot, schoolyard, or park becomes our private airdrome. Electric power is simple. Turn on the Enjoy the sport of radio control the easy way, See your nearest witch and fly. No hard starting, frustrating, miniature glow Kraft dealer for the very best in radio control. gine is required. ‘ - — : . . ~ - SPECIFICATIONS: Wing span 47.5", Length 30.5", Area 295 sg. be aircraft assembles in minutes from pre-painted parts with in., Weight 33 oz. (with radio equipment installed). Suggested oly a screwdriver. Ample power is supplied by especial motor Retail Price: S99.95. (Batteries and charger not included). ith high temperature windings and a balanced armature. Extra opacity long life nickel cadmium batteries may be fully charged i 15 minutes with the optional fast charger which plugs into Per S free catalog of Huff s Radio Conuoi Sne wiiie ur car cigarette lighter. Flying time is approximately 4 minutes K r a f t 450 W. Califorma /We.. P.O. Box 1268 -ML m SYSTEMS. INC r charge. Vista, California 92083. (714) 724-7146 FOX 15 SCHNEURLE BUSHING B o re ...... 590 W eight...... 6 oz. S tro k e ...... 550 RPM with 8-4 prop 13,000 Displacement ...... 15 Beginners love the Fox 15 Schneurte. It cranks easy and it starts quickly. It runs well even it the carburetor adjustments are not just exactly right. Powerwise this motor is equal to any 15 Bushing on the market. The R/C version is equipped with a full metered carburetor, just like the expensive 60's. This means that your engine will continue running at intermediate and low speed throttles, through any sort ol wild maneuvers that you may be able to come up with. 11800 Fox 15 Schneurle Bushing 90301 Tuned Muffler...... $15.95 Motor for Control Lin e ...... $27.95 1t648 High Compression 21800 Fox 15 Schneurle Bushing Head Button ...... 2.50 Motor for R / C ...... 37.95 40716 Racing H e a d ...... 3.50 90242 Conventional Silencer...... 5.95
FOX 15 SINGLE BYPASS B o re...... 590 W eight...... 4 oz. S tro k e ...... 540 RPM with 8-4 p ro p ...... 12,000 Displacement ...... 15 This outstanding little motor is now in its 15th year of production. Its success has been so great that a whole family of 15 size profile model kits have been produced around it. Main bearing is .375" diameter and engine is ported generously. Piston is machined from mehanite and the cylinder from leaded steel. The 1979 model features an improved crankcase, with two studs to accept our "A" series muffler. It also features an improved needle valve assemblv. 11500 Fox 15 Single Bypass Motor .. .$22.95 90212 Conventional S ile n ce r...... $5.95
FOX 19 BUSHING B o re ...... 850 W eig h t...... 5V4 oz. S tro k e ...... 600 RPM with 8-4 prop ...... 15,000 Displacement ...... 19 The Fox 19 is truly an exceptional baffle piston motor. It is easily the most powerful of the baffle 19 motors and probably the most powerful of all bushing 19 motors. For several years this motor has dominated Class 19 racing in Great Britain. The design is simple, the parts sturdy, and for 1979 it features an improved crankcase with fore and aft mounting lugs so that the muffler can be installed quickly and simply. For 1979 the crankshaft pin diameter has been increased to .185 diameter. Also the 1979 model features an improved carburetor. The new carburetor has larger diameter threads on the barrel and steel friction dips for more reliable function. 11900 Fox 19 Bushing 90222 Conventional S ile n ce r...... $7.95 for C . L ...... $26.95 21900 Fox 19 Bushing for R / C ...... 36.95
FOX 35 STUNT B o re...... 800 Weight ...... 6V4 oz. S tro k e ...... 700 RPM with 10-6 prop ...... 9,500 Displacement ...... 352 The Fox 35 Stunt is probably the most successful model airplane motor of all times. First introduced in the winter of 1948, it was skyrocketed to fame by winning first in the 1949 Stunt Nationals. In virtually unchanged form it has continued to win more control line stunt contests than all other makes combined. In 1974 the Fox 35 Stunt powered the World's Championship winning control line stunt model and powered the first place Open and Junior Winners at the Nationals and also powered the Walker Flyoff trophy Winner. This fantastic motor has running characteristics that make it uniquely adapted to control line stunt. The RPM changes with airplane attitude in such a way as to anticipate what the model needs. The Fox 35 Stunt also makes a very excellent beginner engine because it is so easy to start. The crankcase die has been completely rebuilt so that castings are clean and accurately made, and in addition two small lugs have been provided for improved muffler attachment. The Fox 35 Stunt is offered in only one configuration and carburetor arrangement. This is the same arrangement that has won over 16,000 contests. 13500 Fox 35 Stunt with standard 90222 Conventional S ile n c e r...... $7.95 needle valve a sse m b ly ...... $26.95 90412 W‘ Prop Exten sion ...... 3.00
FOX 36 BUSHING B o re ...... 800 Weight ...... 7% oz. S tro k e ...... 715 RPM with 10-6 p r o p ...... 10,500 Displacement ...... 359 The Fox 36 is a bushing main, baffle piston type motor. As compared with the more glamorous schneurle ported ball bearing motors, this motor has more power per dollar, more power per ounce of weight and better fuel economy. Today’s version of the Fox 36 has been thoroughly developed over the years and is easy starting and trouble free. R/C flyers like this motor because of its smooth carburetor action, light weight and moderate cost. Latest version features an improved carburetor with exceptional linear characteristics. For the control line flyer this is the motor around which many control line kits were designed. Ideal for Ringmaster. Flight Streak, Magician and their many blood brothers. Some of the construction features are: Crankshaft a full Vi" diameter, main bearing continuously cast SAE 660 bronze, piston is mehanite and cylinder is leaded steel. 13600 Fox 36 for 90222 Conventional S ile n ce r...... $7.95 C .L flying ...... $27.95 90412 W Prop Extension ...... 3.00 23600 Fox 36 for R/C flying ...... 39.95 90413 Prop Exten sio n ...... 3.00 RC MODELER REVIEWS THE KAVALIER “ .... probably the best .40 size plane you have ever owned.”
*49.95 55-1/ 2" Wing Span For .29 - .40 Engine
Reprinted from the July 1979 issue of RCM go along faster. My only caution would be that vou follow the construction steps in order! Oh, I almost forgot, you The Sig Manufacturing Co., recently introduced an “In also have to follow your decision made with the wing, termediate Trainer” called the Kavalier. At first glance, whether it’s bolt on or rubber banded. All the steps are the Kavalier looks like just another model airplane but covered so just be sure to build in the correct construction don’t let that fool you because after you have built and for your choice. Mine was a bolted on wing. flown one you will agree with me that it’s probably the The tail group is very straightforward. The stab is “built- best 40 size plane you have ever owned. up” in order to save some weight and provide a straighter Now that I have spouted off about how good the Kavalier surface. The fin is solid and can be mounted in any of is, maybe I better explain myself. One of the first things three methods — your choice. I evaluate in a kit is the plan and the accompanying in structions. Sig has intended that a newcomer could take Now that all the construction is complete, it’s time for the the kit home and, following the enclosed instructions, suc finishing process to begin. I used Sig silk with Sig dope. cessfully build this airplane. I’d say they have, in fact, The manual suggests, and I agree, that individual parts achieved their aim. There are many pictures along with be covered before final assembly begins. cut-away drawings that, when combined with the keyed You will notice by the picture that I did not put a canopy written word, make it nearly impossible to have a prob on this one. The first one had a canopy and pilot and lem. one of the comments I heard several times was that it A very complete hardware package was included with the probably took too much time to build the Kavalier over kit: Aluminum motor mounts, nylon nose gear bearing one of the “Ugly” shoulder wing airplanes that are very and steering arm, nylon control horns, molded control common at most flying fields. I personally don’t see much hinges, formed aluminum landing gear, 5/32” wire nose difference in construction time but take your choice — gear, control clevises, and nuts and bolts as required. I think the Kavalier looks nice either way but I prefer the canopy version. One thing I do before I start building a kit is read the in structions completely and study the plans, then it’s time to Well, after all the building and finishing, it’s time to final glue wood. The manual starts with the wing construction ize equipment installation. I used a new Kraft 7 channel so I started the wing on one building board and then skip radio for guidance and a K & B .40 FR for power. Both ped ahead in the manual to page 12 where the fuselage products compliment a super model. I might mention that construction starts so that I could also be working on my our K & B .40 makes the Kavalier an exciting performer, second building board. so it you are rather new, you better plan to throttle back some or you might find yourself in rare air. The wing is very easy to build but don’t try to build it your old way! Claude McCullough has designed the wing Proof of the building is the flying — if you have followed with “Wash Out” in it so read and follow the plans and all the instructions, you will be rewarded by an outstand you will be really pleased. I think there is only one deci ing craft in the air. Slow speed flight is a thing of beauty sion you have to make in building the wing — if you plan with no tendency for tip stall. High speed flight is smooth to bolt it on or use rubber bands — there are a few dif and very similar to pattern aircraft flight. All in all, I can’t ferent building steps determined by your choice. say enough good about the aircraft. While the wing was coming along nicely, I was busy on Sig Mfg. Co. has again provided the modeling public with the fuselage. A unique feature of the fuselage is the use an outstanding product at a reasonable price for which of “print-wood” for the sides, which I felt made the job they are to be congratulated.
See your dealer first! Order direct if not available. Complete SIG Catalog - $2 Postpaid. SIG MANUFACTURING CO...... Montezuma, Iowa 50171 USPJA judges Bob Upton, Al Tuttle, and Bill Northrop (I to r) at the R/C Nats in Riverside, California. Bob w ill be U.S. judge, and Bill the Chief Judge at the 1979 R/C Aerobatic World Championships in Johannesburg, South Africa, late September. Bob is USPJA president. out my oltl pre-war FA and MAN. and Today’s transports and military aircraft Air Trails. I see young men and hoys in fly at out-of-sight altitudes, their aero their early and late teens. Are the old dynamics based on huge quantities of men I see in today’s model airplane thrust from jet engines. The private magazines these same boys? Where are planes are nearly ail look-alike "Spam • li wc νν(·Γ(· lo head ihi>tlise ussion with the kills today? Why aren’t they building t ans.” so clean they are boring. Think a lille h .i'v "U Here Are I lie Juniors." model airplanes? Perhaps the answer we re o ff base? Look at the proliferation a e ri i>i(>1 >,iI>1 v turn n il a w hole bunt h ot liru in the emphasis being given gas of homebuilts, replicas, and restora lejders nol Irer jtise jrlull modelers models, ratlio control in particular. tions. Even the non-m odeling aviation .in· against \ oungsiers gelling into Whai kid has that kind of money? How enthusiasts are turneil off. modelim;: mr>s| everv modeling father tlo we get model airplane interest We feel that we should continue to won Ir I like lo see his son he< om e.ir liveh aroused in the schools along with get publish simple and inexpensive-to- inieiesied in model building .ind living ting your magazine in there too? A kid build model plans, anil we should con wiihoui Ireim; pushed . . . hul because has the price of a rubber banil modeland tinue to publish articles on the basics of so mut h h.is her-n w riile n .ih o iil building learning to build one will teach him model building. Anil to our mind, a full- 1 1.is s e s , model programs. school-con- many things, besides giving him a pride size construction article is worth pages ner led ilinii s. elr.. etc. jd njusejm. of accomplishment. I pose these ques and pages of how-to-organize-model- uhu h .ill sound uie.it, hul in many t .ises tions only for your thoughtful con building-clinics. The parallel is in ways to Ii//le o il! because of l.ir k of partii i- sideration." diet or stop smoking. All the fancy plans p.ilion. First of all. thanks for your subscrip- and pills and rap sessions in the world hill 11.idler. piesitlenl ol I l.idlev I nsti - lion. Second of all. don’t say "ancient" arc useless unless the individual has the lille ol \ulom oli\e Management. Inc.. to another 56-year-old! Thirdly, thanks desire within him or hersell to "break Kor al Oak. Mit higan . primarilv .in jr lull for the compliment about R/C MB. We the habit.” And if you have the will ait tumling school, wrote to us about appreciate it. particularly when it comes power and the desire, you don’t need this situ.ilion. from a free flight rubber m odeler (see the outside help. Sooner or later you get "Rer .enlIr I sent von .i r her k for
6 R/C MODEL BUILDER was ol possible use to my Free Flight interests. v It was sort ol a revelation. Hell, I've even become a Ian ol that "Filthy Fairy Futherlord," or whatever he likes to call himselt. Through • t · · if by force-ted-reading I've picked up some respect lor aspects ol radio flying that had eluded me (Letters to the Editor) before. I even had a pleasant conversation with an RCer the other day. Dear Editor or whoever has the task ot along, and if you think buttons could save an Bill Gieskieng reading through these things: improperly trimmed model from almost Denver, Colorado Category: Non-serious. immediate total disaster after launching, Sorry we had to take such drastic mea August R/C MB arrived today. First reading you better guess again! sures to get you to read about what's going alter Hannan's Hangar was . Three il by Air • · · on in other parts of the modeling world. There are quite a few other free flighters .. "Alter reading letter about MB’s May cover. I The following letter was sent to us by Bob looked it up and upon this second look dis around who are not quite as flexible as you Penko, Kirtland (Ohio) Hardware & Hobby in their thinking. For instance... covered that there WAS a model airplane Shop, Inc., in answer to Bob’s inquiry. included... Dear Mr. Penko: Category: Serious. Please be advised that l checked with Dear Bill, The letter referring to "Extended Scale," or Nationwide Insurance Claims Department and Most distressed to see the title change .. making a model of your own imagineered with the Nationwide Underwriting Department figure you must have combined MB with Don design. Asa teenager back in the '30 s, I did this regarding liability insurance coverage lor Dewey's worthless rag. I don t believe that most with solid or built-up scale models (non-flying). model airplanes. ol the current breed ol RCers can qualily as Would take those parts ol various lull sized The homeowners liability insurance cover really being model builders, so the title is rather airplanes, usually working Irom photos only, age does provide you with coverage The contradictory. and "design" my own Pursuit planes, or the like. exclusion lor aircralt does not apply to model Steve Hetmick Was tun, and now I lind there are a lew others aircralt. Renton, Washington with the same general thoughts. Proves I'm not II any ol your club members need liability P S. I used to fly R/C, recently tried a Iriend's alone, though haven't done this lor all these insurance coverage please have them contact Aquila ... ho hum . give me FAI Free Flight years past. me. I'll be happy to provide them with the anytime. Keep MB format (correct wording?) like it is. insurance and "Peace ol Mind" they desire. Your comment about R/Cers seems to It far outshines the rest ol the Held. John F. Lambert represent quite a few of the “current breed" Bill Kee Cleveland. Ohio of free flighters, and it puzzles us as to why Twin Falls, Idaho this segment is so antagonistic toward other What a pity that solid models are no Most liability insurance policies, as issued longer a part of the model building scene! modelers who happen to get their kicks out by reliable companies, have an exclusion for of some other phase of the hobby than free Plastics, with their "instant results" (not to aircraft, which does not apply to m odel flight. As a matter of fact, the on ly antago put down that special group of modelers aircraft. Check with your company's agent who work for hours in finishing, painting, nism we have witnessed among modelers and request clarification. comes both verbally and in writing from this and detailing basic plastic kits to perfec Unfortunately, some insurance adjustors same segment of free flighters. Why this tion), have generally killed solids, which take pride, and profit, in getting their self-annointed "chosen few" think they are provided so much practice in the basic skills companies out of paying certain claims. the only ones who know how to design, of building wood models from near scratch. Examples do exist where the aircraft exclu build, finish, trim, and fly model aircraft, is Hmmm . . . Westburg drawings in the maga sion clause has been effectively applied to beyond us. We get hundreds of newsletters zine are 1/40 to 1/48 full size, and the good claims involving model aircraft. Unless every month from all types of model-interest old Boeing F4B4 iscoming up next month... referred to specifically in the exclusion, clubs, and the only uncomplimentary digs claims involving model aircraft should we come across are from free flight oriented Gentlemen: qualify. The intent of the exclusion is for full- writers toward R/C modelers. It's time these Delighted to see the reprint ol Miniature size aircraft only. If your company claims characters got down from their self-con Aircralt Co. plans. Would like to see more ol otherwise, get help and stand your ground. structed pedestals and take a look at what’s their 7 “ = T scale /obs How about a lew more? Incidentally, as AMA Dist. VI V.P., Horace going on around them. Sure, there are Being a scale nut. I enjoy that part ol your Cain points out in his column in the August R/Cers who think that CG only stands for magazine most. 79 issue of Model Aviation, you can buy Carl Goldberg and that trimming a model is Would be interested in having some ol your prim ary insurance for each member of your putting striping tape on it, but we've seen scale experts give a course in the trimming and model club at $3 to $5 per member without free flighters at Taft cranking for hours on a flying ol scale models. The relationship and joining AMA . . . and this from the company simple little half-A. When it finally keeps incidence ol wings and tail surfaces, down- that sells AMA its secondary insurance for running long enough to release the timer, thrust, etc. lor high wings, low wings and which you pay $25 to join and become they heave the model in any direction and biplanes, rubber. COz's, and 112A. insured. It’s Ohio Casualty Co., Hamilton, jump on their dirt bike, crank it up, and do a You stick-twisters can blame your problems Ohio, in case you wish to look into it. wheelie all the way to pick up the remains on Gremlins/Glitches and otherwise. (Relates where the model did a half-loop and bit the to Big John.) Us ordinary guys just gool! To: Bill Northrop dust 50 yards downwind. C.P Chapman Hi. Bill. First ot all I would like to say how much Come on, man . . . there are fine modelers Chicago. Illinois I enjoy reading Model Builder. Second, I want and stupid jerks in all phases of the hobby, We just happened to have the Miniature to assure you lhal I have missed it very much but they're all having their kinda fun, and Aircraft Co. "Goshawk" kit. If we were to since my subscription ran out and I would like lo that's what really counts in the long run. R/C make any others available, we'd need the do something about it. is in the inevitable position today of paying plans AND the printwood, as the plans do Seems that the last issue received by me was the freight for most all of the manufacturers not include drawings of the ribs, bulkheads, . I believe the January, 79. Anyway. Hutch and publishers in the model aircraft hobby, etc. that you would need in order to build the had just taken over Irom Stalick. Somewhere and that means it also benefits free flighters models. Anyone out there wish to loan us a connections were missed on my renewal. and control liners as well. You might as well kit? Printwood must be clean, with lines well Enclosed are xerox copies ol my cancelled just lay back and enjoy it! · defined. check, ol January 8.1 trust you will be able to put If you don't already have one. you should things back on the track. I would appreciate pick up a copy of our book "Flying Scale getting the back copies I missed, bul if il is too Models ofW W -ll." It contains articles by Bill much trouble just restart me as ol now. Hannan. Bill Warner, and Doug McHard on One good thing did come ol my lack ol new building, covering and finishing, and flight reading material; I had been in the habit ol adjustment that could answer many of your reading the Free Flight section and passing questions. over the rest with a glance, but out ol despera Many of us "stick-twisters" were "button tion I started through the back issues with a line pushers" before proportional control came comb. Much to my surprise, I found much that
OCTOBER 1979 7 OVER THE COUNTER
• From Sig Manufacturing Co. comes word of yet another addition to its line of «5» modern general aviation scale models. It's the Beechcraft E33A Bonanza, a Sport Scale replica of Glen Sigafoose's full-size Bonanza based at Sig M fg. C o.’s home field. The model was designed by Hank Pohlmann, who is the man responsible for several other popular Sig kits, and features a conventionally-built balsa main fuselage with a full-length top cabin vacuum molded from ABS plastic . .. a technique similar to that used by House of Balsa on its 1/2A kits. The balsa fuselage takes all the vibration and flight loads: the plastic cabin is for looks only. New .60 size Beech E33A Bonanza from Sig. In addition, clear molded windows fit into the inside of the top to provide a Bunyan among dummy pilots, measur nice, authentic appearance. Sure sounds ing 7-1/4 inches in height and 7 inches like a quick and simple way to get across the base. The figure is m olded around all those compound curves. from ABS plastic, in two parts, and must O ther goodies in this new Sig kit are a be glued together a la the W illiam s Bros, molded ABS cowl, foam wing cores, pilots. Separate, clear plastic goggles are formed landing gear, step-by-step in also included. The parts can be painted struction booklet, photos of the full-size with dope, epoxy, or enamel. Because of ship to use as scale documentation, the size, even the shakiest fingers should aluminum engine mounts, and all the be able to do a decent job of painting hinges, screws, links, horns, screws, etc. this fellow . Retail price is $5.95. required to finish the model. The plan Both from Sig Mfg. Co., Montezuma, also shows how to install retracts, which IA 50171. is almost mandatory from an appearance standpoint. A Bonanza in flight just * * * doesn't look right with the gear hanging Ace R/C is introducing a couple of out . . . know what I mean? new items that do-it-yourself R/C types The new Sig Bonanza spans 64 inches, should find interesting. First, there’s the is 44 inches long, takes .60 size engines, Dual Uni-Charger, an expanded version and will weigh 7-1/2 to 8-1/2 lbs., of the popular Uni-Charger program depending on whether or not you install mable battery charger. The difference the retracts. Looks like it should be a lies in the fact that the Dual Uni-Charger Sig's 1/3-scale dummy pilot. Looks like he's popular subject w ith the Sport Scale can charge both the transmitter and been doing too many outside loops! crowd. Retail price is slated to be $77.50. receiver batteries at the same time (or Builders of Mammoth models should independently), whereas the regular The transmitter side of the charger check out the new 1/3-scale dummy Uni-Charger can charge only one set at a puts out 45 to 50 ma. The receiver side pilot from Sig. He's a regular Paul time. can be programmed to put out 10,20,33, or 45-50 ma to a 4.8-volt ni-cd, depend ing on which resistor you install in the circuit. The Dual Uni-Charger is available in kit form only and consists of a wall type transform er, PC board, two L.E.D. charge indicators, wire, solder, and dropping resistors to provide the proper charge rate. No connectors are provided for plugging the charger into your radio. Retail price of the Dual Uni-Charger is $7.50. Another new item from Ace is a Servo Reverser. If you’ve been into R/C for any length of time you’ve probably wished, when installing a radio in a new model, that one or more of the servos operated in the opposite direction. And
8 R/C MODEL BUILDER Dual Uni-Charger kit from Ace R/C. Ready-made smoke system by Harry B. Higley & Sons.
system are not furnished. make your own smoke system for your Unlike the Dual Uni-Charger, the model, but as far as we know, Harry B. Servo Reverser is available in both kit Higley & Sons is the only m anufacturer and assembled form. The kit goes for to produce a ready-to-use system of this $7.95, or $11.50 assembled. From Ace type. It’s called “ Harry’s Smoker,” and R/C, Inc., Box 511, Higginsville, M O consists of a servo-operated valve and all 64037. the fittings required to hook it up to the ♦ * * engine. You provide the tank for the smoke fluid (kerosene or diesel fuel are Another new item intended primarily «*» recommended) and the hook-up lines. for big scale models is the set of heavy- Also, the pressure fittings for the back- duty hinges from C.B. Associates. Upon plate and muffler are extra large, so seeing these biggies for the first time, you’ll have to do a bit of drilling and our first thought was, “ Now that’s a tapping. h in g e." and we’ll bet you'll think the Retail price of Harry’s Smoker is same. The two hinge halves are molded $19.95, w hich includes the valve and from black glass-filled nylon and will Servo Reverser kit, also from Ace R/C. fittings mentioned above, along with accept paint quite readily. Each half has a complete instructions. Order yours pressed-in brass bushing, and a 1/8-inch from Harry B. Higley & Sons, 433 Arquilla though numerous how-to articles have brass tube acts as the pivot pin to hold Dr., G lenw ood, IL 60425. appeared on the subject, including one the halves together. The result is a hinge by Eloy Marez in the February 1979 issue that is extremely free, yet has virtually no of MB, it seems that there are always a play. The hinges can be used in a variety Panavise Products has come out w ith a few who are reluctant to open up a servo of ways, as shown in the C.B. ad on page neat accessory for the Tray Base Mount and start switching wires around. If you 77 of last m onth’s R /C MB. (see A pril ’79 "O v e r the C ounter” ) that fall into this category, get oneorm oreof No price has been announced, but it electronic types should look into. It’s the Ace Servo Reversers. This nifty little will no doubt be quite a bit higher than called the "Solder Station,” and consists device plugs in between the receiver the usual nylon type hinge used on of a combination soldering iron holder and the servo, with the result that the average size models. Contact C.B. Asso and controlled-feed holder for standard offending servo now rotates the way you ciates, 21658 Cloud Way, Hayward. CA spools of solder. The station attaches want. The finished unit measures a scant 94545 for more inform ation. 3/4 inches square by 5/16 inches thick right to the Tray Base Mount with the and weighs only a few grams. It w ill work * * * solder on the left and the iron on the with 3 or 4-wire servos, positive pulse Various model magazines have right, and can easily be changed around only. Connectors to match your radio printed various articles that tell how to for southpaws. The Solder Station is also
Two-Gether Lear Jet, second in a series of kits from Hobby Hide- Solder Station, another great accessory from Panavise Products, away.
OCTOBER 1979 9 CRAZY-TAPE c r a z y -tape CRAZY-TAPE
3d VI
Crazy Tape, a new m ulti purpose two-sided adhesive tape, by Sonic- Nicely-made Super Power Panel, by L.R. Taylor & Co. Tronics. designed to be used separately as a Iree- standing unit and can be easily attached to a bench or wall. The station comes with two nib sponges with self-purging slits for single stroke iron lip cleaning action. Retail price of the Panavise Solder Station is just $4.98. You can get one from Panavise Products. 2850 29th St., Long Beach. CA 90806. * * * Repla-Tech International’s Bob M or rison sent us a short note announcing lhal arrangements have been completed with Bill LaRue. head man at Repli-Kit, to make kits from Repla-Tech's Zlín Z-50L and Cessna Agwagon R /C model plans. R epli-K it’s catalog quotes $69.95 for the Z-50L kit and $49.95 for the Ag require only assembly or painting on the whatever else is handy. The finished wagon. The Z-50L kit includes a plastic part of your young modeler. Only a few model is plenty strong enough to stand engine cowl and canopy. Both kits are wood parts are involved, and everything up under the punishment that only a now available. is already cut to shape. Assembly is made child can dish out. Interested modelers should contact even easier by the instruction sheet, For more information, interested Repli-Kit directly at its new address: which contains sketches to supplement fathers can contact Hobby Hideaway, Repli-Kit. 1 Usher Circle, Pensacola, FL the written instructions. R.R. 2, Box 19, Delavan, IL 61734. 32506. The Lear Jet shown in the photo is the Sheeting foam cores, installing fuse Hey, Pop. how about getting your second in the "Two-Gether” series and lage doublers, lam inating balsa or ply young son or daughter involved in consists of only 8 pre-cut parts. Can’t get wood . .. these jobs and many others are model building? The series of "Two- much simpler than that! The model Gether kits from Hobby Hideaway look spans 17-3/4 inches and can be deco Continued on page 114 like an excellent way to do it. These are rated anyway the young builder chooses ultra-simple, non-flying models that . . . paint, felt markers, ballpoint pen, or
Really neat retractable captured towhook for R/C sailplanes, from Fourmost Racing Products. New Plastic Model Finishing Center from Testors.
10 R/C MODEL BUILDER Our R/C Aerobatic Team for the 11th World Championships in Johannesburg, South Africa (L to R): Dave Brown, Dean Koger, Mark Radcliff, and Manager Don Lowe. The Master's Tournament in Celina, Ohio is what this month's column is all about.
By BILL NORTHROP WORLD PHOTOS BY AUTHOR . . . AT THE 1979 N.S.R.C.A. MASTER'S TOURNAMENT, CELINA, OHIO. • After living with the dense popula Aerobatic Team Selection competition. a big surprise to us at first, but not after tion, the heavy traffic, the end-on-end After an apprehensive glance at the we thought about it. O h io was not yet cities, the smog, and the temper-testing outboard engine mountings, we into odd-even, but there were closed gas lines of Southern California . . . boarded a TWA L-1011 at LAX and flew stations and moderately long gas lines albeit the quiet and clean-aired seclu into the airport at Dayton on Friday the . . . in the Dayton area, that is. More on sion of our waterfront home in Newport 22nd and rented a car for the drive to this later. Beach . . . it was quite a different and not Celina. Sign of the times. . .the National We headed north on I75, found an at all difficult experience on June 23 car we picked up had a half-empty tank! open Sunco station, paid 98.9, and and 24. to visit Celina, O hio, for the 1979 Although coming from odd-even. 99.9 aimed for Celina. After turning off I75 Master’s Tournament and FAI R/C cents-per-gallon California, this was still and driving west, we knew we were getting into farm country, as the space between houses opened up to about 3 miles! Celina itself was a quiet mid-eastern farm town with a main east-west street.a main north-south street, and a town-hall
"The thrill of victory!" Mark Radcliff makes the most of his reward for 2nd place at The Team and their Toys. Dave's is a Tiporare, Dean's is the EU*1, and Mark's is a Phoenix 7. Master's. Sorry, we missed Queen's name. See chart for other particulars. Phoenix is Don Lowe's design, one of a long series.
OCTOBER 1979 11 lO CO
3 2 2 ^ i t U. a Q- ^
5 ^ ex * £ X * * “ -
1C to ac oc I I ic c r oc ac c r to er co I ι λ o te
trcrtooc»sicoto
_r r-^ -cr that Bruce Underwood keeps his four-point x 1 r^- t-~- r-·- r-~ & & ír X X X X roll on a constant heading. r-~ r--
TO Ό j 4> -3 gj i. N «Λ _ cr a> ω 3 5 Ε Ε ~ o T cc -O CD Ϊ u Í ε I . č c N 4> , X O) -5 Ό o -o s 5 5 5 < s = S m ό » o § I ‘ S 1 § -£ 2 = ■9 9 a = : = S * “ >. o ^ -J t <5 ě i > “ ο = c p e e ο ° α ο: m X o to o i S ž g § o i o o : O (/) i CC l - -O o Q
«— cMcoTOtntor^oocno*- Final total is sum ol best scores from each flight line. 1A First flight at Site A 2A = Second Flight at Site A etc Russ Brown did a fine job of keeping every Props TF - Top Flite R - Rev-Up. S - Southern R/C. Z - Zinger one informed over P.A. system. Announce *Tie broken by highest unused score Retracts G = Goldberg. K = Kraft R = Rhom. S = Southern R/C ments were brief and to the point. Number in front of score is round in which flown R/C MODEL BUILDER 12 1. Dave Brown and faithful helper, Sally. 3. Dean Koger and impressive EU-1. 4. Steve Helms, with Ron Chidgey holding. 5. Jim Kimbro, Deception, Marty Wittenberg. 6. Ron Chidgey, with Dick Penrod holding. 7. Tony Bonetti, Intrepid, and Marty Barry. 8. Jim Oddino, Curare, and Bill Salkowski. 9. Don Weitz, Henderson, Nevada. I0. Don Lowe, with Steve Rojecki holding. 11. Fred Kugel, Celina, Pat Shuttleworth. 12. Joe Bridi, UFO, and Tony Bonetti. 16. Joe Gross, w ith slimmed-down EU-1. 17. Dennis Donohue, had run of bad luck 18. Jim Eide, Littleton, Colorado. Trion. OCTOBER 1979 13 19. Dave vonLinsowe, Linden, Ml, Sultan. 20. John Britt, Daddy Duck (!), Charlie Reed. 21. Pat Shuttleworth, Phoenix 8, Fred Kugel. 22. Rod Barnes, Tiporare, Tony Frackowiak. 24. Roy Pinner, Waterford, Ml, X-Terminator. 25. Bill and Anna Macek, Bethlehem, PA. 26. Bud Weber, Waukesha, W l. 27. Don Atwood, Denver, Colo., Art Turrill. 28. Bruce Underwood, Guntersville, AL. 29. Bill Fuori, Tiporare, Commack, L.I.,N.Y. 30. Ed Keck, Webster, N.Y., Joe Bridi holds. 31. Howard Danforth, UFO, Marty Wittenberg. 32. Don Seals, Paris, III., Bud Weber. 33. Sal Battaglia, Tiporare, Brooklyn, N.Y. 34. Charlie Reed, Equalizer, John Britt. 35. Jim Vanderwalker, Clintonville, Wl. 36. George Buzel, Stamford, Conn. 14 R/C MODEL BUILDER Heap Big Chief Bill Lehn watchum frequencies! Now a WORKS member. Bill is old flying buddy from Delaware club in late '50s. Ron Hesselbrock, tournament director, bums a ride on the trans Judges Bob Reuther, John Targos, and Bill Johnson, fighting early mitter impound shuttle. Yessir, Celina's in real farm country. Sunday morning chill. It warmed up. Note seating arrangement. that closely, and therefore it was new to Remember, a judge can be just as good system is the possibility of a shortened us to o . . . and we d id n ’t like i t . . . at first. who scores consistently high as one who contest due to weather conditions. With It got better as we thought about it, scores consistently low ... the key word 3 flight lines, scoring must be deter however. is "consistently.” mined from multiples of 3 flights (3,6,9, Credited to Ron Chidgey, we believe, the idea was to use one best flight score The one fly in the ointment to the Continued on page 116 from each set of judges, in determining the winner, rather than simply taking the three highest scores overall. Why not the three highest scores overall? Inevit ably, one set of judges would score higher than the others ... bound to happen. W ith 3 flight lines and the expected 6 flights per flier, the high scoring judges would almost surely be responsible for picking the winners, i.e., in most every case, tw o of the highest scores for any flier would come from this set of judges. On the other hand, taking the highest score from each set of judges Judges Dick Austin, John Byrnes, and Larry Sartor watch Bill Fuori's flight. Perpendicular spreads the responsibility to all judges. seating put all on the centerline, but last guy has difficulty hearing, gets more background noise. Judges Travis McGinns, Julie Woods, and Al Tuttle (L to R). Arrange- Roy Pinner, Waterford, Michigan, goes all the way, with his X- ment should preclude concern of contestants regarding collusion! Terminator design painted on van. Expensive to change airplanes! OCTOBER 1979 15 • Are you tempted to try a monster airplane that assembles at the field in a couple of minutes, flies like a dream yet is fully aerobatic, and flies an hour on about 40 cents’ worth of fuel? Better yet, it builds up fast, can be covered with Monokote or similar iron-on film cover ings, has tricycle gear, and is durable enough to take the abuse of being a first- in-line, everyday airplane! That’s definitely a big order to fill, considering all the good products that are reported to work great, but seldom do because they are mismatched with others. For 5 years now I have been mismatching large airplanes, power- plants, and landing gear systems. I had reached the brink of frustration, having many near misses w ith success. M y large airplanes flew well, but not totally to my satisfaction. I felt like one slip of my thumbs and my entire winter’s project of a scale beauty would hit the ground! I heard reports like, "M y plane loops at 1/3 throttle," "It goes straight up," "It does anything I want to,” and so on from people all over the country. Yet all the PHOTOS BY AUTHOR large models I saw fly, at best flew like BIG BIG BIG BIG mine that were marginally powered. I was repeatedly asked questions by BIG BIG BIG BIG newcomers such as which engine would BIG BIG BIG BIG their large airplane best fly with, what BIG BIG BIG BIG modifications should be made to the kit B IG STIK to accept the engine, or how did I think By DON ANDERSON . . . An enlarged version of Phil Kraft's famous their combination would fly? Several of Ugly Stik, designed in collaboration with Mike Smith. Impressive! these newcomers were so excited about their new large airplanes that I found it reports are success stories w ritten by more often than being taken along to difficult to express my own doubts that modelers, rather than the previous the flying field to be flown! I was tired of they would end up happy with any manufacturer ads that left modelers with building models and just having pictures com bination available. In some cases I unanswered questions. The old days of taken of them , and I was tired of being so knew the newcomer had only limited just a couple of years ago left no alterna limited by lack of power in how they experience with models, or less than tive but to try a product and play guinea- could be flown! average modeling ability, and I was pig for the other modelers around! Last year’s 1 /4 -Scale meet in Las Vegas afraid the individual would end up Still, with all the recent success stories left me with this feeling as I came home bitterly disappointed with the hobby, or I had read, products I had seen or tried, disappointed w ith my ow n performance. worse yet, hurt someone with his mon and experiences I have personally had, I I had stayed up 10 days on about 20 ster! I simply did not know of any easily- felt there was a desperate need for a hours sleep total getting my new 1/3- mastered, off-the-shelf combination sport design using large ignition or glow scale Super Fly ready to go, driven that I could recommend. style engines. Scale m odel designs of straight through over 1500 miles to get I feel that times have been changing countless subjects were available, but there on time, tinkered 2 full days with a the last 4 or 6 months, and several good sport fun-flying, inexpensive style de new engine before making my first combinations are becoming available signs were (and still are) very limited. I flight, and then made only 3 flights the today that new and improved power- felt far too many large scale airplanes last day. Those 3 flights were proof to me plants, new propellers, new kits, and were being completed as showpieces that I was closer to having a successful experience with each have bred. Maga and static subjects, rather than airplanes combination than ever before, but more zine coverage of big airplanes has that would be flown every day. Nearly tinkering and modifying would be helped tremendously to familiarize us four years’ worth of my own modeling necessary before I could relax and have all with these new products, and most effort was left at home in the basement fun flying the design. I noticed during Except for the fam iliar shape of the Quadra engine, there's nothing in these photos to give any indication of just how big this monster really is. Model is just as aerobatic and easy (if not easier) to fly as the regular size Ugly Stik, just slower. 16 R/C MODEL BUILDER Quadra is mounted on C.B. Associates mount, uses Rual Engineering Engine is mounted inverted. Note throttle linkage from servo; prop adapter, 18X6 Zinger prop, C.B. spinner. Quarter Headquarters makes a similar type of linkage. be fun to fly. If I could not build a fun-to- different sizes, looking at w ood sizes fly large model after 5 years of concen available, and thinking how large my trated effort on just large airplanes, I Quadra was, I decided to enlarge the made up my mind to give up. outline only 1.6 times. I quickly plotted a I spent probably a month thumbing new rib outline on graph paper, drew in through old magazines, looking at kit the "scale” spar and center-of-gravity plans, and thinking about what airplanes locations, and decided to call it a night. I had enjoyed flying in the .40 and .60 The following night I went to a local versions. I finallysawa pictureof 3Tulsa- club meeting, at which I asked if there area modelers’ airplanes that totally was anyone else interested in my idea. made sense to me. They were huge Mike Smith voiced interest, and we "Ugly Stiks,” enlarged 1.7 times the .60 scheduled a work day the following powered size, designed for Quadras. Saturday to finalize plans and start W eight was reported over 30 pounds building two of the monsters. I spent an each. fSee Flap Co. Ugly Sticks in last afternoon rounding up more drawing month’s "R/C World.” wen) paper and supplies and was ready for the Without going into too much detail, I weekend. decided I would rather try my own Saturday came, and so did Mike. We design. I had learned to fly on a Jensen tore into the project, first considering Ugly Stik ten years ago, and have kept the use of cardboard, arrow shafts, one around ever since for a fun-fly aluminum tubing, and several other airplane. I dug out a set of my old plans, construction techniques. We finally got out my calculator and decimal ruler, decided to come back to basic balsa, Mount is fitted with 3/16 ply ring before and went to work enlarging the plans. I plywood, and spruce construction. My bolting to firewall. Q.H. muffler. started out considering just how big a 1.7 large airplane experience had familiar times enlargement would be, and when ized me with this style of construction, the show that many other fliers flew only I realized it could not fit into the back of and I felt I could better judge the weight a few flights, if any at all, and most of my full-sized station wagon, started of our structure in this form than any these flights were nothing more than thinking smaller! After playing with other. Weight was my main concern, as I takeoffs, circles around the field, and landings. A very few of the airplanes flown were aerobatic beyond the simple loop and ro ll stage. I’m not sayingthisto in any way down play the event, because it was the greatest gathering of beautifully built and finished large scale airplanes I have seen in 10 years of m odeling! The point I want to make is that I disagree with putting so much time and effort into a model that I am hesitant to fly it! Contrary to the QSAA "scale only” direction when awarding prizes, I feel it’s better to sacrifice the scale look requirement and encourage fast-build ing, truly aerobatic, fun-to-fly monster airplanes. And now I have one! I came back from Las Vegas soul-searching for why I did not feel really relaxed and glad to have made the trip, and when I realized I had missed having fun flying, I made up my mind to try one more (a last ditch effort!) Main and nose gear, bent and ready to install. Nose gear is a non-standard item, has to be custom monster-size airplane that I felt would made. A simple job for your club machinist. OCTOBER 1979 17 J L i . i * ’**s. // \ Í? n _ ■~i R/C MODEL BUILDER VB Cr>* /tr //* . x + r. BIG STIK f£*«vU£D £Y. &&L/ Al/G&tžMJ / /»/<£ ^/ir/rv ro ta te n o t /»/ Z A & !+ & < ·* S**J fCUk/M \auunr MODEL BUILDER » v / í magma Jn Plan NO: /0rŤr -. FULL SIZE PLANS AVAILABLE - SEE PAGE 116 OCTOBER 1979 20 FULL SIZE PLANS AVAILABLE - SEE PAGE 116 R/C MODEL BUILDER Stab assembly is a snap. Simple diagonal structure is covered top Rudder is even easier than the stab. Sheet balsa on both sides of a and bottom with sheet balsa. Note dual elevator horns. simple framework... what could be easier? overall result looked to me to be lighter than a fully sheeted panel, with far less sanding required. Mike agreed, so drawings were completed and wing rib and false rib templates were made. My experience with .60-powered Ugly Stiks included a couple of damaged servos (and airplanes!) resulting from aileron flutter. Tapering the ailerons and shortening them so they ended at the tip rib seemed to eliminate the problem, so the Big Stik ailerons were drawn in accordingly. We decided to worry about any remaining details when construc tion reached those stages. The fuselage design began with us discussing nosegears and Quadra vibra tion. My Quadra was stock out-of-the- box, and had been run only the few Throttle and nose gear servo installation. times at Las Vegas. V ibration was un Plenty of room for a radio (and 3 or 4 more!). doubtedly many times that of any .60 I had ever seen, so I planned on buildinga nice alignm ent jig during assembly! Due strong fuselage and empennage assem to the wide spacing of the ribs after bly! Convincing Mike was no problem, scaling them up, we decided to use 1/Ö- so he decided to w ork on the stab and inch lite-ply plywood to be sure we had fin drawings while I did the fuselage. We Elevator and rudder servo installation. Two enough strength. Provisions in the ended the day looking at an old Royal servos used on elevator for extra power. center two rib bays for aileron servos P-3Ö double-strut nosegear I had, won and wing hold-down blocks, plus added dering whether an enlarged homemade felt the completed model should weigh contact area for the fuselage wing- version could be made simply. no more than 20 pounds for good per saddle, seemed to make it desirable to The following week nights Mike and I formance. The fact that we wanted a sheet those bays, but all other ribs and worked at a breakneck pace. We were tricycle gear model this large bothered spars could just be capstripped. The making good headway now, and the me, because I knew that no model manufacturers made nosegears that were suitable. We both ended the day realizing we had accomplished very little and that a lot of work remained to be done. We had enlarged only the outline, and still had all the structure design ahead of us. The following Saturday we again got together. I had thought a lot about the wing structure, and decided I wanted to keep the "Ugly” look of the open frame work. I suspected torsional strength might be more of a problem than G-load strength, so looked prim arily for a way to add torsional strength to each wing panel. The simplest way seemed to beto build in a large box spar, using the "scale” spars as corners. By making the top and bottom of the box parallel to the rib centerlines, the box idea looked to Main gear installation. Struts fit into grooves in hardwood blocks in fuselage, are held captive me to have an added benefit of making a by a removable plywood plate. OCTOBER 1979 21 excitement began to take its toll on our build the first panel, adding ribs starting vertical grain balsa w ebbing at the front hours of sleep! The full set of wing at the center section side of the panel. and rear of the box spar. The false ribs drawings was completed, remaining He found lhal the entire center section, were next glued in place, followed by part shapes were transferred to plywood consisting of all dihedral braces and all the front wing bolt plates, and blocks, using carbon paper, and templates were center section ribs they interlocked top trailing edge sheeting, and top filler cut out. Mike incorporated nylon bolt with, had to be first built as a su b- ribs between the spars. At this point provisions in the stab so the stab could assembly on the bottom Ί/2-inch square Mike began the top side capstripping, be bolted on and began buildingoneset full-span spruce rear spar before being and he muttered a bit as he found the of tail surfaces. I stopped working on the ep oxied in place over the bottom sheet 1/8x1/4 balsa strips used on the ribs and fuselage design long enough to cut the ing. This was mandatory, as the full-span false ribs often broke while being bent wing ribs and dihedral braces for one over the leading edge. We solved this bottom rear spar would prevent the wing, and built up the full-span 1/2-inch problem by soaking the top sides of the adding later of any of the interlocking square spruce wing spars. I built these capstrips with “ Fantastic” household style ribs! Once the center section from two separate 1/4x1/2-inch spars cleaner and water before Hot Stuffing assembly was completed, he tilted the similar to the way they are done in the them in place. Both spars were cap- Jensen kit and epoxied them together, wing so the first panel could be built on stripped, the front with 1/4x3/16 soft the already started jig, and proceeded being careful to reverse the center balsa, the rear with 1/8x1/2. A Dremel adding the remaining full-length ribs splices to avoid a weak joint. 580 table saw was invaluable, as we cut and front spar, carefully positioning Another weekend arrived, and by most of the special size strips we needed each and gluing them in place as he then M ike was ready to begin to assem from scraps of 1/8 and 3/16 sheeting I worked outwards toward the wing tip. ble the first wing. We agreed to finish had laying around. At this point we the one model we were working on and When all the first panel full ribs were removed the wing from the building test-fly it before building the second. in place, he epoxied a piece of tapered table and added all bottom filler rib Mike agreed to let me play guinea-pig, trailing edge stock to the 3/16x2 bottom pieces and capstripping on the first and I was hoping that at least his airplane trailing edge sheeting and Hot Stuffed panel. would turn out well to pay him for his the assembly to the ribs. Leading edges We next prepared to build the second sacrifice! Mike began the wing assembly were cut from 1/2-inch balsa sheet and panel by shimming up the proper dihe on a flat table by pinning a 1/2x3x48- 1/4-inch square epoxied into a 1/8x1/4 dral angle at the completed panel tip so inch balsa sheet over the box spar routed slot in the back side. This assem the next panel could also be jigged in location of one panel on the plans. He bly was glued to the leading edges of the the same manner as the first. You will pinned the 1/2x3-1/2 balsa sheet box full ribs. The top spars and box spar top suspect that your table must be at least 8 spar bottom on top of this and began to sheeting were then added, followed by feet long the first time you look at the 22 R/C MODEL BUILDER Aileron linkage details. Basically follows UglV Stik tradition, except Tail skid is important, as the airplane can be flared so much on that bellcranks are on the inside. landing that the tail touches first. Don't leave it off! Engine and tank plumbing details. E.W.H. tank holds a quart. See Plywood hatch allows easy access to tank. A cowl would be nice, "Over the Counter" for new gas line from Sonic-Tronics. but wouldn't be in keeping with the Ugly Stik tradition. full-length 1/2-inch square spruce spars, table saw with a hollow ground planer top and bottom cross-grain sheeting. I but here'it is a necessity, as the finished blade, and found the table saw did a put a 1/8 lite-ply doubler in the fuel tank panel must be shimmed up carefully to smoother job, requiring practically no compartment and wing-saddle area, and insure a twist-free wing. Once in posi sanding. Bellcrank pads, Sullivan SR a second smaller doubler in the tail to tion, Mike quickly finished up the steel rod and nylon tube pushrods, and help hold the vertical fin and stab. I ran second panel, added the 1/4-inch sheet servo mounts were added in the wing. 1/4-inch square spruce stringers in each balsa tips,support triangles,front blocks, Lastly, Mike sheeted the two center rib fuselage corner and down the centers of and trailing edge Ί/8 -inch sheeting. bays and fitted the ailerons. both sides and the top and bottom. A The time had come to start the tedious While Mike had been working on the 3/8-inch plywood firewall, built-up 1/4- part of radio installation planning in the wing, I kept designing and building the inch plywood bulkheads at the front and wing and aileron planning. We cut fuselage as time permitted. I started the rear of the wing opening, and 1/8-inch ailerons and elevators at the same time design knowing full well there wasn't lite-ply bulkheads behind the wing out of a large 3-inch square by 36-inch much I could do to make the box style opening back to the tail pretty well long balsa block. We tried using both a construction complicated! I decided to finished up the design ... to the point of 12-inch bandsaw with a rip fence and a use 1/4-inch balsa sheet for sides and Continued on page 68 OCTOBER 1979 23 needles me more, and I can’t help enjoying the humor of it. So much for our nonsense. Seriously, if you follow the earlier suggestions, the chances that you’ll have problems FUEL LINES caused by flexible fuel lines will be mighty slim. However, excepting the GEORGE ALDRICH OTTO BERNHARDT carburetor, there’s another important P.O. Box 817 17119 S. Harvard part of you fuel system: your tank. While Edinburg, TX 78539 JOE KLAUSE Gardena, CA 90247 leaks are not always disastrous with suction fuel systems, any leak in a P.O. Box 2699 Laguna Hill*. CA 92653 pressure fuel system is guaranteed trouble. Send in your questions, relative to glow or ignition engines, and these Think about this scenario. New R/C experts will give you the correct answers. plane, super engine and new tank, but there’s a minute hole halfway up the rear of the tank. The tank’s full, the KLAUSE slip-off problem. engine is supplying pressure to the top I have two additional recommenda of the tank, and fuel is being pressure • Fuel lines. That’s the name of this tions that will practically eliminate all fed to the carburetor. A little fuel is also colum n, isn’t it? So, what could be more other tubing problems. First, NEVER, being forced out through that ever so appropriate than to start out this month repeat, NEVER construct a model in such small hole. Nevertheless, you can readily with a few hints on the subject. At this a way that you cannot very easily replace set the needle valve, and you launch point you may be thinking, “ Who needs the flexible fuel lines. That includes unaware of the leak. Everything goes hints? A fuel line’sa fuel line. Hook it up, access to clunk tanks with internal well until the fuel level reaches that hole and that’s all there is to it.” Well, maybe flexible fuel pick-ups. Second, always in the tank. When it does, you’ll lose you’re one of the fortunate few who install new flexible tubing before each tank pressure, and since the fuel to the have never had an engine problem day of flying. I can hear the moans and carburetor will no longer be under caused by a fuel line. I have, and I’ve groans about that second one. “ Ridicu pressure, the engine will go lean orquit. seen enough others to convince me that lous: not necessary; time consuming: If it quits, naturally it will be two feet they’re about on a par with a hangover expensive, etc.” I’ll concede that it’s not over a large lake. If it runs lean, and you . .. common, very annoying, and com absolutely necessary with silicone tub have no throttle or fuel shut-off. there’s pletely preventable. So, here’s some ing, provided that you completely purge a good possibility of a ruined engine. information and a few suggestions. the system of any oil after each flying There has to be a way to avoid such In general, flexible fuel lines on the session. In this instance you can go problems. There is, and it’s simple. market today are made of one of three several sessions without replacing the Never assume a tank is airtight. Always basic materials: plastic, rubber, or silicone. But, and I emphasize this point, test it under pressure under water. silicone. The most troublesome of these if you let it go more than three or four Pressure fuel systems are great, but to is plastic. It’s loaded with headaches weeks, you’re pressing your luck. Don’t work properly, it is essential that the such as kinking, hardening, cracking, tell me it still looks good. Replace it. entire system be airtight. That includes melting, and leaking, to name a few. If With latex, the rule is quite simple. Use all lines and the tank. So, guys, keep up you’ve never had any problems, try new tubing for each day of flying. If you the integrity of your fuel system, and using plastic tubing. The most common fly the next day, replace it. you’ll have a lot fewer hassles. · rubber in use is latex, or surgical tubing. Time consuming? If you built in easy It is an excellent all-purpose tubing that access, it w o n ’t take more than five BERNHARDT is particularly well suited for free flight minutes. Expensive? Latex costs about pinch-off timers and control line fuel 25 24 R/C MODEL BUILDER ignition coil. On a three-volt ignition the points is to drastically reduce the comments about the fuel shortage and system, approxim ately four amperes are current flowing through the points nearly fell out of my chair . .. particu flowing when the points are opened. when they separate. We can do this by larly the com m ent that Texas has enough This is enough current to cause a very the use of a transistorized ignition oil to supply the U nited States for 200 small spark to be generated between the system (T.I.S.) to fire the coil. O nly 1/10 years. Since you and I have been old points, and this is the prim e cause of of an ampere flows through the points friends for many years, I thought you unwanted RF “ noise.” Lesser “ noise” is with this system, which is not enough to might like to have some facts on the real emitted from the high tension wire to cause a spark or cause the points to arc, situation. the spark plug, and also from the con so no shielding is necessary over the “ I am attaching a letter prepared by nection at the coil. Even the wires of the points. However, shielding is necessary H.W. Glamann, one of my Senior Prod ignition system send out some of these over all the other components as pre uct Engineers, that puts a 200-year oil signals with enough potential to destroy viously described in the first system. I am supply into real perspective. Even as your model. quite sure that the T.I.S. w ill be the suming no growth in consumption, you The solution to this whole problem is simplest and most practical method of can readily see there is not enough oil in that we must completely contain these overcoming interference to your R/C the crust of the w hole planet to last unwanted signals and prevent them gear. T.I.S. systems may be purchased another 200 years. U.S. consum ption in from getting to the radio receiver, and from a few manufacturers and ready to the first quarter of 1979 was up 4.5” .. over we can do this in a couple of different install, or you may wish to make one the same period in 197Ö. This would ways. yourself. Plans and instructions for one indicate no one is hoarding products One way is to completely shield and were published in the May 76 issue of until the price goes up. ground all electrical components that Model Builder. (Unfortunately, this “ Somehow, the American public has make up the ignition system. This in issue is no longer available, but send to become aware that there is a real cludes the ignition batteries, coil, con $2.00 to the R/C MB office and you'll problem . . . and the public is the prob denser, switch, points, spark plug, and get a complete copy of the article, along lem! The public refuses, in general, to all wires. This may sound difficult, but it with all additions and changes printed in reduce consumption. They will not car really isn’t. The batteries, coil, con subsequent issues.) Parts are available pool: they w on't use mass transit: and denser, and switch may all be enclosed through most electronic parts stores. they won’t dem and a sensible energy in a lightweight box which is com pletely Some R/C systems are more suscep program from our governm ent. As an covered with aluminum foil or thin tible to intereference than other brands. example, look at the 27, grow th-rate sheet brass. Put a small hole in the box Kraft is presently marketing an FM R/C scenario in Mr. Glamann’s letter. It is for inserting a small diameter non- system that is said to be completely painfully obvious we can’t go on much metallic pushrod to operate the switch. im m une to ignition noises. Some owners longer at this rate. I. for one, do not The wires coming from this box to the of Futaba systems have enjoyed ignition relish the thought of swimming around engine must be of the shielded variety flying without shielding of any kind, and in 61 feet of oil! (obtainable from your local radio parts I am sure there are other brands that will “ Guys like you and I need to some store). The spark plug must be com perform as well. Check with your local how get this message to the public. The pletely covered with a metal cap and the hobby dealer before makinga purchase.· message is really very simple. We are wire leading to it must also be of the using up a non-replenishable resource shielded type. The points are the most ALDRICH at an ever-increasing rate. We already difficult toshield. A close-fitting metallic use astonishing amounts of crude oil. cover that c o m p le te ly encloses the • A couple of months ago, in anger over Conservation is the only practical solu points is a must to confine RF noises the huge price increase of nitromethane, tion in sight. generated by the points' opening. This ΟΓ Big Mouth here really popped off “ I hope you can use some of Mr. point enclosure is difficult to make about the energy crisis in general. In Glamann’s figures in R/C Model Builder without machine tools and must be short, we opened our mouth and . . . this might just help explain the oil custom constructed for each engine. crammed both feet in . . . and then along dilemma to some people who may not comes our old friend Bert Striegler, to realize the extent of our dependence on I have been flying a model on ignition jam his two in also. oil. Yours very truly, Bert Striegler.” as outlined above, controlled by an old “ Dear George, * * * Heathkit R/C system without a single bit "I read your comments in R/C Model of interference problems. The secret is Builder on the nitromethane situation, An article authored by Mr. George com plete shielding. and of course, I agree it puts everyone in Aldrich appeared in a recent copy of Another way to eliminate RF noise at a real predicament. Then I read your Continued on page 109 A German-made "4-Takt" engine belonging to Bertil Attervik of Goteborg,Sweden, converted to ignition by Otto Bernhardt. The engine is quite heavy for a .60 and uses a tim ing belt to drive the cam shafts for the valves. Also available in V-twin or opposed twin versions. OCTOBER 1979 25 John Preston has the right idea when it oomesto flying R/C for the sheer fun of it. His Taylor E2 Cub was adapted from plans put out by Megow for a rubber-powered version. Uses Cannon R/C rig (2 channels) and a muffled .049. A good schoolyard flier. * 1/ 2-A f c m By LARRY RENGER • Thanks to an unusual abundance of throttled engine, and then both sizes in photographs, I get to be lazy this month. standard versions. Eventually I expect I’ll just lay back and do show and tell for that Bill will also import the G-Mark .12 a change. tw in, too. First up are a couple of new engines The G -M ark .06 is, of course, just 1 cc being imported from lapan.Mr. Hidenao capacity in the m etric system. The size Sakatani was kind enough to solicit three increase over an .049 gives enough extra of the new G-Mark engines from the oom ph (a technical measure of power in manufacturer and sent them to me for the furlong per fortnight system) to my examination. Mind you, he has no overcom e the power loss associated financial involvement, he just liked with throttling and muffling. You end up them and thought I would too. Anyway, with the ideal powerplant todothrottled I did like the engines and suggested to versions of those hot 1/2A airplanes Bill Cannon that they would be a great we've been flying with only two chan addition to his line of small radio prod nels up to now. The engines run best on ucts. Bill contacted G -M ark, received his a short reach idle bar plug. own samples, tested them, and now has Next photo was sent by John D. arranged to import and distribute all of Preston (7012 Elvira C ourt, Falls Church, G -M ark’s products. First item to come in VA 22042). That’s a Taylor E2 Cub built Kraft's smallest system uses KPS-18 servos. will be the .06 throttled, muffled engine for two-channel R/C by modifying How about flaps, throttle, and retracts on at $39.95, then he'll bring in an .03 Megow plans from a rubber-powered your next 1/2A ship? Just as a teaser, here's a photo of the G-Mark .12 opposed twin being Cannon is also importing the G-Mark .06 R/C engine. Plenty of imported by Cannon Electronics. Will sell for $109.95. power for your hot 1/2A model despite throttle and muffler. 26 R/C MODEL BUILDER version. Power was changed to a m uffled .049 Medallion, and John flies it with a Cannon radio. It looks great except that the pilot is leaning too far over in the cockpit tying his shoelaces, and you can’t quite see him. After some major reorganization and redesign, The Model Factory again presents the EOS, a standoff scale model of a homebuilt aircraft. Bob Lyons bought out his partner and dropped the manufacture of urethane foam fuse lages. Few people seemed to be able to build the models right that way. Anyway, the fuselage is now conventional balsa construction, but the wings were kept in the now familiar foam. I understand that there is room for a .10 in the model if you are very brave, but it flies best on an .049/.051. Send to 15907 Victory Blvd. No. 202, Van Nuys, CA 91406 w ith an SASE for specs on the EOS and a catalog of other models. Just the trick for an EOS and perhaps the new G-M ark .06 w ould be Kraft’s 6- channel receiver w ith KPS-18 servos. How about flaps and retracts in a 1/2A size model while maintaining good performance? That ought to wow those stand-off scale judges. Is the high-wing model photographed a 1/4-scale model held by the Jolly Green Giant? Nope, Micro-X Models has brought back a nearly lost art: building! My goodness, sticks, stringers, ribs, spars, sheeting, and carved blocks. You really get the urge to relearn covering with silk to do justice to a model like this. I think this model was designed by Woody Woodward. It weighs in at 16 ounces with an .049and 2 channels. As you can see, you can stuff a .10 in it too. Zowie! Last and most assuredly the least, but not to be overlooked, is the "Little Bit” C/L 1/2A stunter by Randy Heydon. This In these days of foam and fiberglass, it's nice to see some genuine balsa structure. This is Micro X's new Taylorcraft, for ,049’s to .10's and 2 or 3 channels. .010-powered miniature was featured in the January 1979 issue of my favorite magazine. The wing is fully sheeted over ribs. A beautiful jobof construction,and * * * * * * reputed to be a fine flier. · Still another G-Mark engine from Cannon, this one an .03. W ill also Randy Heydon's Little Bit .010 C/L Stunter was a construction be available with a throttle. feature in MB (Jan. '79). A surprisingly good performer. OCTOBER 1979 27 • It's always a lot of fun to try to explain it. The conversation drifts around to something other than where or how to get gasoline, how the kids are doing, the state of the union, and centers on important things like what you do in your spare time. "I build model airplanes,” you relate in a matter-of-fact way. “ Oh, those cute little things that fly on strings?” the very attractive blond re sponds while clinging to the arm of her 215 lb., 6’4" husband. Then the series moves through several predictable stages that ultimately wind up with you saying that you build scale models and the very scale ones might take 500 to 1000 hours of working time. At that point, often, the blond and her husband move away quickly, figuring they're talking to a wacko. Nobody in orauuiu, uociiiuoii i o·* iviemur iiy weii-Known scale modeler Bud Atkinson was flown at Mint Julep meet, placed 3rd in Expert class. their right mind would put that much time, energy, and money into some thing they fully intend to launch into the air, destined to fall prey to the fickle ness of wind, mechanics, or pilot stupidity. TO I have never been able to fully explain to laymen that making hundreds of tiny 1 rivets can be relaxing and even thera peutic, or that flying them is the only natural extension of building them in By BOB UNDERWOOD the first place, or that they are not a PHOTOS BY BOB WISCHER member of the family but wood, paint, you are cutting out, sanding, etc. per etc. 3) Don't put a TV set in your work haps you can work two at once. This No matter how you cut it. of course, shop. On second thought, I sometimes method not only often results in a time- the time consumer in model airplanes is find it very interesting to watch a pro saver but helps make them more iden the scale model. Each part of our model gram re-run of a show I "saw” while tical. You’ll find that this is especially discipline has its own expertise, but working on a model. The dialogue may helpful if it's a scratch-built model. I certainly the amount of time put into the be familiar but the visual part is brand remember once looking with pride at a building of a C/L combat model is new. completed wing panel, only to realize in considerably less than a scale model. 4) Gather as much of the hardware as horror that I had nothing to use to The combat flier must, of course, have you can that you need ahead of time. duplicate the ribs, spars, etc. for the more models and spend much more This can't always be done, but it’s a real other panel! Indeed a case of classic time perfecting his technique if he’s to bum m er to discover that you are held up stupidity. be a winner. waiting to get to your local hobby dealer 2) Remember, you cannot cut a length to pick up some tubing, a tank, or the From time to time. I've suggested of wood lon ger: you can only shorten it. like. Having such things as a fuel tank some time-saving methods in this Therefore, the extra time required to handy helps prevent the problem of column that I've found myself or bor check measurements more carefully is building-in 1/4 inch too little space that rowed from others. At the risk of repeat worth it if you don't have to cut another could be provided for while building ing myself on some, let’s pass on a few piece. It's a heck of a waste as well if you but can’t be after the fact. ideas at this time. go at it with gayabandon. I keepa bunch 5) If you’re scratch building spend at 1) Remember that many things are in of old file folders handy in order to cut least 1/3 of your time planning rather two’s on a model, such as spars, wing templates for formers, ribs. etc. before I than gluing. Don't build yourself into a tips, fuselage sides, elevators, etc. When cut into the wooden gold called “ balsa." corner. Think ahead. Granted, this Our author and his Petlyakov PE-2, repaired after it blew over from Ralph White, last year's Nats Sport Scale winner, ready for flight at stand at Mint Julep. Cracks touched up w ith crayons. Mint Julep. Placed 2nd. Helper is Dave Davis. 28 R/C MODEL BUILDER Dick Graham, back on the contest circuit, w ith Piper Pawnee crop Art Johnson's well-traveled but still beautiful P-38 at Mint Julep. duster at Mint Julep. Sprays talcum powder! Plans in June '78 MB. Spans 8 feet. technique comes best by making mis takes and learning from them, since every new model is a new experience and challenge. After you've stared at the darn thing for an hour and no solution seems imminent, do one of two things: either go to bed (assuming, of course, that it’s time to go to bed) or go cut the grass (shovel snow, watch TV, argue w ith your neighbor). I have often found that the solution to an especially knotty problem has come in those few minutes before I drift off to sleep or in the middle of a particularly dull reading lesson I'm teaching at school. Ted White flew this very efficient-looking Martin Baker MB-5, from a Model Merchant kit. Flew at recent fun-fly in Texas. Photo by Owen Morris. It often helps to talk over the problem with a few other persons. They very often are not encumbered with the same blunders you’ve developed over the problem, and can help. It's not necessary for them to be modelers, either; in fact, sometimes that helps since they may know of materials and techniques that come from other fields that can be incorporated in modeling. M y classic example of that was m en tioned before in this colum n when I was faced with the problem of coming up w ith Phillips head screws in a 00-09 size. It took Dick, my next door neighbor, a precious few minutes to come up with the idea for a punch and a die made Also from Owen Morris comes this photo of his Mammoth Scale Beech Staggerwing. Spans 8 from a small screwdriver shaft that feet, powered by Quadra. Should have been flown by now. worked admirably. The conversation with him opened up the whole solution. the St. Louis area is the Spirits of St. Louis however, these will give you the general Later, when I complained of the task of R/C Flying Club. With their 100+ mem intent of the event. The aircraft will be painting each of those darn thingsafter I bership, many events of a club and open scale, but it will be racing, and the fella installed them, a friend, not a modeler at nature are held each year. They pio with the fastest plane may not be the that time, suggested I paint the entire neered Top Dawg races some years ago winner because he’s not as "scale.” It’s sheet of plastic I was using b efore I and have tried other innovative and Reno at St. Louis. For further details, punched them out. Simple? Sure it was interesting activities. contact Allen Poole, 6126 Fee Fee Rd., simple, but I hadn’t thought of it at that Their most recent departure from the Hazelwood, MO 63042. Phone 314- point. What is that old adage about the ordinary is Warbirds Unlimited, a race to 731-5139. forest and the trees? be run later this year. Some of the basic AIRCRAFT POX I really would like to have your hints to rules include the following: A common affliction which occurs to use in this column. They may seem all models over any period of time is the 1) Models will be judged as per AMA simple and you feel everybody must accumulation of dents, bumps, and Sport Scale rules; 2) Points will be know of them, but you’ll be surprised. basic hangar rash. An often heard state awarded by finish in each race heat: 3) I’d love to spring for some fantastic gift ment is that more damage is wrought to for your contribution, like a solid gold Engine requirements are .38 minimum scale models by bum ping into doors and to 1.25 maximum: 4) Displacement Caddy, a DC-10 or the like, but I guess I'll assorted solid objects than occurs on the coupled w ith wing area (.40-450 sq. in., just have to limit the reward to a men runway. .60-625 sq. in., 1.25-1000 sq. in.) etc.; 5) tion of your name. Send them to me at Regardless of how the damage comes Root thickness o f wing m inim um of 10% 4109 Concord Oaks Dr., St. Louis, M O into existence, in most cases you have to 63128. of chord; 6) Team entries allowed; 7) repair it if the m odel is going to retain its Formula I course used; 8) Taxi required original appearance. Very often this WARBIRDS UNLIMITED (to prove idle); 9) No fuel restrictions. One of the most active R/C clubs in There are a number of other rules, Continued on page 107 OCTOBER 1979 29 Earl Thompson’s outstanding Focke-Wulf 44J gets the once-over from At the Saturday morning briefing, contestants receive flight line the judges. Won Grand Championship for his efforts. assignments and the caution, "D on't fly over the golf course!" M ORGAN HILL SCRAMBLE Text by PATRICIA GROVES, photography by MONTY GROVES . . . This year's gathering of warbirds was one of the best yet. It's an annual event at Hill Country Air Museum, Morgan Hill, California. • May was a miserable m onth for Cali "crunch” turned into a real "strangle.” ridge and CD Bob Morse quickly passed fornia drivers. No gas. Alas. In spite of it The Hill Country Flyers were frantically on the good news to contestants (and all. War Birds West contestants and Hill searching for options and alternatives hurray No. 209 for ‘‘Pre-registration Country Flyers contest workers zeroed when Irv Perch, owner of Hill Country, required”). in on Morgan Hill with a come-what- offered a portion of his fuel allotment to That weekend, contestants and work may determination. contestants so that if they got there they ers doubled up: They car-pooled. They As the May 19-20 weekend ap could get back on the road again. van-pooled. They camper-pooled. Some proached. the California gasoline Bonanza! Contest Manager Don Lough- came by air. Howard Osegueda, of Oakland, CA, entered this WW-1 Bristol biplane, Mike Valko's Jungmeister was built from a Platt kit. Color scheme built and modified from an old Strato Products kit. was copied from a full-size Jungmeister in England. Good action shot of Dave Vincze's Focke-Wulf I90 taking off. Built Bob Vaillancourt’s Zero, built from a Royal kit, is a spectacular per from a Pica kit. Dave hails from Sacramento, CA. former with a big Webra .91 in the nose. 30 R/C MODEL BUILDER Scratch-built P-51 by Paul Cremins sideslips in for a close pass. Paul Castle, of Santa Maria, CA, sends his sporty Tiger Moth out on Webra Speed .61 hauls the freight. another training flight. Sure looks realistic. George Killeen, of the So. Cal. Scale Squadron, does a wheel landing Another Zero (also a Royal kit), this one by Jim Menzmer of the on the grass airstrip with his F4U Corsair (D&B kit). Ukiah Prop Busters. Flies well with K&B .61. Happily, ihe Hill Country Flyers' annual spring military opener came off as planned. And at 9:15 Saturday m orn ing, the first of 45 flying models (4 AMA and 41 Sport Scale) took to the air. In the pits, 4 Static entries were on display. Team Scale was elim inated from the program this year, and Static Scale was substituted to give builders an oppor tunity to compete on their talents. Under new requirements, the War Birds West contest opened up to include any military airplane from any era. This broadened the competition to encom Doc Keith, of Clovis, CA, showed up with this beautiful scratch-built Northrop A-17. Note the pass c u rre n tly flyin g m ilita ry planes, unusual wheel pants. Model is said to be an outstanding performer. restored types, museum and display A M A Scale N ieuport XI was first o ff Jim M eister of Jemco com peted w ith aircraft along with historic planes of the his P-47, a recent release. And there past . . . just about anything but "m o d i Flight Line 1 on Saturday morning. were prototypes of other commercial fied fighters in racing colors.” In the course of the next two days, designs sudí as M ark's M odels' .40- Consequently, there was an interest everyone was treated to some fine flying powered 6-1/2 lb. Hawker Hurricane. ing mix of foreign and domestic designs and a chance to meet with and talk of American, British, Canadian. French. about innovative modeling and model Among modelers exploring new tech German, Swedish, and Japanese fighters, ers. Along w ith standard kitted models niques was Harold Leminger of Rose trainers, bombers, and liaison aircraft such as those of Royal, jemco, and Top ville. California. whose scratch-built from WW-I to the present. Fittingly Flite, contestants had modified kits (such F-86D has foam wings and a m olded (although unplanned that WW-I would as Sig and Pica) tosuitdesignsotherthan fuselage with a tuned pipe down the start off the show), Larry Sutherland’s the manufacturer’s offering. middle. Harold Leminger, of Roseville, CA, pilots his scratch-built F-86D While his pilot cowers under the panel, Brian Vaillancourt, of Reno, for a landing gear inspection by the judges. NV, greases his Platt T-28 to a smooth landing. Colorful ship. OCTOBER 1979 31 ο Nick Maire modified a Sig J-3 Cub kit to produce this nice L-4B observation plane. Nick used to fly the full-size counterpart. Flew at last year's WW-II Scramble also. Mark Smith brought out this really nice flying Hawker Hurricane, may possibly be a future kit from Mark's Models. Chuck Fuller, of Seaside, California, entered a Convair XP-81 and an older F4U. By going the foam and fiberglass route over ihe pasi couple years, he’s developed his own fabricating tech niques. Chuck Fuller, of Seaside, CA, has something really different w ith his scratch-built, 1/10-scale Earl Thompson, of Livermore, Cali Convair XP-81. One of the few jet type models at the meet. Webra .61 power. fornia, continues lo create top-notch scale models. His newest project, a enthralled with the Hill Country Flyers' everybody's fuelish friend. scratch-built Focke-Wulf 44J, is a work of own particular brand of low-pressure At the close of the contest, the War art. But more than that later. contest that they forgot why they'd Birds West Grand Cham pion was Earl Because of the presence of many come! Thom pson’s scratch-built A M A Scale unusual subjects, the contestants had Hill Country's traditional Saturday Focke-Wulf 44) in Swedish Air Force plenty lo occupy their attention. There night banquet for Pilots and Pit Lizards markings of the late '30s. And on hand to were times, however, when the flying got off to a rowdy start with Hill Country award I he ProLine radio was lerry Bonzo, lagged, and repeated calls to ihe flight Flyers Monty Groves (bartender) and representing War Birds West's sponsor, lines and ready boxes went unanswered. Chuck Turner (Master of Ceremonies) ProLine Electronics. It could have been due as much to maintaining a steady flow of liquid and Earl's fabulous reproduction of the contestant interest in one another as the verbal high spirits. When, on Sunday, full-scale airplane (hangared at the Hill “ spring fever” type weather, a fine flying their duties changed to dispensing Country Air Museum) earned him an site, and the relaxed atmosphere. Óne octane of another sort, ol’ "Regular” unprecedented 444 scale points. The wondered if the contestants became so Groves and "Low Lead" Turner became Continued on page 96 Nice one-wheel landing of a Platt Spitfire by Dave Stutsman, of the Virgil Van Bibber’s blue-and-yellow PT-19 climbs out on a training Ukiah Prop Busters. flight. Pilots in the cockpits sure add to the realism. Another WW-II trainer, a Navy Stearman N2S-5 by Tom Minger. Harold Dew's impressive P-47 duplicates the T-Bolt flow n by 8th Colorful ship was modified from a Sterling kit. A ir Force ace, Capt. Walter H. Mahurin. 32 R/C MODEL BUILDER Squadron of CR-32's based at Campoformido in 1936. No. 152 Retouched handbook photo of s/n 3958. Italian Air Force CR-32 identifies squadron as 152 of 2nd Gruppo of 6th Stormo. was camouflaged in sand and olive green. It. gray underneath. The reasons for the Fiat CR-32’s good performance were threefold: It had an excellent 600-hp Fiat engine, robust construction, superior maneuverability, and a particularly long range from its Breda 12.7 (.50) caliber machine guns. A FI AT CR -32 favorite lactic of CR-32 pilots was a head-on attack: the guns delivered a by PETER WESTBURG PART TWO heavier bullet at a longer range than could the enemy. House o f Savoy w ith two fasces added Captain (ose Larios, Duke of Lerma was placed high on the w hite center bar. and a Nationalist pilot, w rote of his The fasces also appeared in a blue disc adventures in the war. One quote tells it on the fuselage ahead of the cockpit. In all: “ A single (Russian) 1-16 was above place of the earlier cocardes on the me, but I wasin the Rate’s blind spot, just wings, white discs outlined in black and below, tucked under its tail. I moved in having three black symbolic fasces close below its barrel-lke belly . .. and identified the airplane as one of Benito began hosing her down with theCR-32’s Mussolini's. Early in the Spanish Civil twin Breda SAFAT guns. The Rata began War, the coloring changed. Two differ to shudder. First the metal tailskid flew ent camouflage schemes were adopted, off, then pieces of the wing. The aircraft one w ith a base of sand or light earth rocked up on one wing and plummeted with an overlay of dark, olive green like a stone. Unstable even when under mottles: a second of wide, irregular bars control, the Rata merely stopped flying of sand, dark olive green and terra cotta. and as she went, I followed her, driving One of several different markings was a home several more bursts. Her p ilot was cross of St. Andrews on a white rudder, still in her when I broke away.” white crosses on the outer wing tips, U ntil 1938, the Fiats of the Italian A ir black chordwise bars, and white wing- tips. Scoop under spinner is shuttered oil cooler. Force were painted aluminum overall Fairing on top wing streamlined wing tank. with the rudder and part of the fin The mottled camouflage was adopted divided into equal width red, white, and by the Italian Air Force and used by them tration of a Spanish CR-32, see Munson's green vertical bars. The crest of the through WW-II. For a good color illus- Fighters 1919-1939, p. 64. · Benito Mussolini inspects a squadron of CR-32's and Savoia Marchetti The Italians occupied Ethiopia well into WW-II. Here a trooper in- SM-81's donated to his pal Generalissimo Franco. spects a nosed-over CR-32 at Addis Ababa in April, 1941. OCTOBER 1979 33 34 R/C MODEL BUILDER OCTOBER 1979 35 INSTRUCTOR Conducted by DAVE BROWN 8534 Huddlmton Dr. Cincinnati. OH 46236 • Well, the time has come when I must During all these test glides it is best to address the problem of teaching one’s have the radio turned on, but leave the airplane or even clim b a tree than to pick self to fly. After the reaction I got to transmitter on the ground, using it only up pieces at your feet. Be patient and Lonnie Barlow’s letter a couple months in emergency to get the model out of a proceed carefully and you can teach ago I guess there are more people out thermal! Don’t laugh, I've seen this yourself to fly; after all. the Wright there who can’t find an instructor than I happen. After you can consistently brothers didn’t have an instructor either! ever realized. I feel I must start out with throw it in this manner try it holding the I have written what I consider to be a the statement that if “ IF THERE IS ANY transmitter in the other hand and try good "ten commandments" for the self- WAY YOU CAN GET THE HELP OF AN steering it just a little. Don't try to make taught R/C pilot, and you should read INSTRUCTOR. DO SO.” If you can’t, any sharp turns, but rather try to make it and heed them: then pay close attention to this article, do very shallow S-turns, never exceed 1) Thou shalt get help if at all possible. which may help you over most of the ing about 10 or 15 degrees from that 2) Thou shalt fly only a trainer type rough spots. Airplane selection is much straight line. Don’t touch the elevator airplane, preferably a motorglider. more critical when the inexperienced control yet and don’t move the rudder 3) Thou shalt fly only when it is calm. pilot is forced to teach himself. Al stick any more than about half its travel. 4) Thou shalt fly only in a very large though the Cadet. Falcon. Fledgling,etc. Up to now a typical football field open area with its owner’s permission. are ideal trainers for those who have an has been sufficient for your practice, but 5) Thou shalt not fly to impress friends. instructor, I feel that a powered glider is now it is important that you find a large 6) Thou shalt proceed slowly and with your best bet, such as the Pilot 10 MG or open field with as few obstructions as caution. the new Midwest Performer, although possible. Practice starting and adjusting 7) Thou shalt not panic, let the airplane fly itself out of trouble. almost any standard type glider with a the engine until it runs consistently and power pod or a small engine in the nose will run out the whole tank without 8) Thou shalt steer the model carefully and delicately, using only rudder at first. will do. The reason I feel this way is problem. Now comes the time to try to 9) Thou shalt check thy equipment because this type of airplane is usually so actually fly it, but only very slowly at first. frequently and charge batteries faith stable that it becomes a free-flight with Fill the tank only to a level which will occasional radio interference! allow the engine to run for about two fully. 10) Thou shalt be patient, lest thee bust Set the airplane up w ith a very minim al minutes, and after setting the engine as thy toy! amount of control surface throw, parti rich as it will run, launch the airplane cularly on elevator. Now, before you fly exactly as before. It w ill probably fly only W ell, it is tim e to answer at least one it, spend a considerable amount of time slightly farther than on your previous letter before closing the column this “ hangar flyin g ” it simply by pointing it at test glides, but this is the intention. Keep month, but I still need more input. many different angles (including com doing this, leaning the engine out a Dear D ave: ing straight at you) and working the little at a tim e until it just stays airborne Have a question for you. I would like controls, imagining that it is flying and until the engine quits, and attempt to to m ove into pattern flying. C ould I use a you are trying to steer it around the sky. fly the airplane only in very large circles. Bridi R.C.M. 60 trainer, if I take out the If possible, it’s better if you can mount Only after you can fly it in circles with the dihedral, set the wing incidence at zero the airplane up on a camera tripod engine set so that it just sustains level and engine thrust at z e ro ? This is for Pre- while doing this to get the perspective flight should you lean it out so it will N ovice and N ovice class. I cannot use my of the airplane being above you as well climb. When the engine quits you Bootlegger because it has retractible as it climbing, diving, or banking. I should continue to circle and let the landing gear and tuned pipe. Thanks for realize you may feel ridiculous while airplane land where it may, and as you your time, Paul and Sue Maharis. doing this and it probably should be progress try to land it near you simply by Dear Paul and Sue: done out of sight of other sane people making the circle larger or smaller as Glad to see another husband-and- to retain your stature in the community, necessary to determine the landing spot. wife team coming into the fold. The but believe me, it is important and it D on’t mess w ith the elevator yet, as it R.C.M. 60 Trainer with the modifications works. I still use this system when trying will most likely get you in trouble. Once listed would be suitable for the Pre- to straighten out a particular problem or you can fairly consistently land it within Novice event but might be a problem in maneuver. about 100 feet of yourself without ground handling if you encountered getting into any trouble you should try Now you may think you’re ready to crosswinds. The high wing makes it using the elevator to flare the landing by go poke holes in the sky, but first you more susceptible to gusts of wind on the easing in just a little up elevator as the must get the airplane trimmed out by ground. The Kaos would be a better bet, airplane gets to about 2-3 feet high. test gliding it over some tall grass. Only and in my opinion is the best available when you can consistently throw the At any time during this whole pro airplane for these events. Your Boot airplane at the right speed to make it gram keep in mind that if you get into legger is legal in the Novice event, so glide smoothly to the landing without trouble, just let go of the controls and let why not start there? dropping like a brick or stalling and the airplane fly itself. It is much better to That is all for this month. Keep those dropping in are you ready to continue. have to walk a mile to recover a whole cards and letters coming. · 36 R/C MODEL BUILDER • If you are looking for a real fun "uncontest,” then hydro (seaplane to v tm . you) models should have a tremendous appeal to you. Best part is that the expert has no particular edge here, hence the interest always shown in water flying. Point in case was the recent SAM 21 Hydro Fun-Fly. One couldn’t really call it a contest, as it degenerated into a real fly-for-fun get-together. This state of affairs was partly attributable to the “ gas crunch,” as many of the expected contestants from the Sacramento Valley area failed to show. No question about it; the reputation of Santa Clara County as being the worst place for gas avail ability has definitely made its impression on visitors to this area. A nother factor was the weather, with meteorologists predicting all sorts of ill Look at that tail moment! Henry Ashcroft, of Pomona Valley Hobbies, built this neat Baby weather for the weekend. As it turned Playboy. With an Arden .09. it's a hot performer. out, the early morning featured a stiff wind that steadily decreased to the point where the flying conditions were excel lent directly after lunch time. Retrieving was supplied by Don Bekins and son, Lawrence, who towed their boat all the way from Sausalito. Lawrence and the columnist's grandson, Robert, pm spm s PHOTOS BY AUTHOR had a ball running the boat all over the smooth lake. With the wind strong in the By JOHN PONO early morning, the taxi portion of the meet was abandoned. (Bob Von Koňsky left the balloons home!) few tips that develop worth passing on at least tw o degrees negative to the With entries less than ten, a vote was to the would-be hydro modeler. The centerline of the fuselage. With this set taken among the contestants to change biggest one is how to get the most out of up, the model literally flies itself off the the meet to an official fun-fly, with no your floats. water with the engine at a positive angle awards being presented. This not only Most free flighters are familiar with to the water level. This system works saved the SAM 21 treasury a bundle but the old three-sled type floats used quite very well with flying boats. The positive relaxed quite a few of the fellows who successfully. Here the forward floats are angle of the engine (resembling up came to compete. Directly after this set at a positive angle of attack when thrust) simply pulls the long planing hull decision, a series of impromptu pylon compared to the centerline of the out of the water with seemingly the races developed between Kafer. Von model. These floats, which are generally greatest of ease. The main drawback Koňsky, Bekins, and McBride. Several quite wide, are almost like hydro-foils. with long hull type models, although others (notably Pond) were rendered Any resemblance to full-scale Edo type they are very realistic in flight, is their hors de combat by hitting the bank floats is purely coincidental. These wide lack of maneuverability. Simple stunts instead of the water. flat types have proved to be eminently like loops, rolls, etc. require good successful when placed forward of the altitude and plenty of room. As pointed out at the start, this proved propeller. This prevents nose-oversand As pointed out, the best compromise to be a real “ uncontest,” as the girls allows the model to build up speed to appears to be the two-float set-up. showed up with the goodies (there just plane off the water. This generally These do not have the drag of a hull and happened to be several picnic tables occurs so quickly in free flight that many allow for considerable latitude in aero available). In no time flat, the final phase modelers don’t realize what is hap batics. In Old Timers, these are the best of the meet turned into eat a sandwich, pening. from a duration standpoint, as their low fly a model, have a cool drink, fly again, In radio control O.T. models, the angle of negative attack appears to fit the and so on. Real great fun! trend is to the use of tw in floats, a la fu ll- glide angle excellently for low profile HYDRO PICKUPS scale aircraft. With these floats, thinking drag. As in any contest, there are always a must be reversed. The twin floats are set Floats are always a big question. Back in 1937'38, Sears McCorrison built this Baby Cyclone powered Frank Parmenter, of the Brainbusters club, launches his version of "Baby." Presently building an .020 version. the Roeser Swoose. Pic taken at Hampton Roads, VA, in 1941. OCTOBER 1979 37 A Roy Wriston "Diamond" by old timer Charles Werle of Sacramento, Jim Adams is ready for the Nostalgia event with this Gilliam-designed CA. Photo taken at ‘79 U.S. F/F Champs at Taft. Civy Boy. Nice job, Jim. Surprisingly, one of the best two-float designs is the old Berkeley Gondolier float. In all the passing years (darn near forty), there has been little improve ment in float design. If one is fortunate to find a kit of Gondolier floats, he should simplify them as follows (inci dentally, float plans are available in many sizes from John Pond O.T. Plan Service). The concave undersurfaces are real pretty and theoretically aid in takeoff, but the flat surface seems to work as well with less possibility of damage. Hence, the floats should be flattened to form a simple low-angle vee float. The round top should also be b uilt flat for ease of attachment to the landing gear wires. In Anderson Pylons are becoming the rage in Southern California. Bill Cohen shows his nicely- essence, what the scratch builder ends built version, powered by a Forster .99. Photo from '79 U.S. F/F Champs. up with in pontoon section is a flattened seem to be the most successful. After all, engine Karl Carlson had on hand to use pentagon. when starting out new in this hydro as a model from which to take measure These pontoons are simplicity in game, there is no use in reinventing the ments. themselves to build. Starting with the flat wheel (or the float, in this case!). The Chunn engine was developed by top, the float formers are glued to the So, if you are interested in seaplane Bob Chunn, who was a barber at the top (we are building the pontoon upside models, particularly Old Timers on time he started tinkering with model down). When these are dry we can add floats, keep your eye on this column, as engines. Using the Elf engine as a basis the sides. When they are ready to pick we will be bringing you more dope on for ideas, it wasn’t long before Chunn up off the building board, the bottom this enjoyable phase of O ld Timer model had produced his own engine based on pieces can be added. When using Hot flying. his idea of what an engine should look Stuff, it is astonishing how fast an all like. sheet balsa float can be put together! ENGINE OF THE MONTH For those fellows who love realistic This month's Old Timer engine is the His first engine (which we will cover taxiing on the water, float rudders are a Chunn "Chum,” second model. The later on) was greatly influenced by the must. These don’t have to be very big reason for doing the second model first Baby Cyclone fixed tim er idea. By 1937, and are attached to the rear end of the is because this was the only Chunn the so-called “ redesigned, greatly im- floats. One will work okay, but for sharp turns in the water, it is best to have synchronized twin rudders. For those who hate fooling around with flexible leads to the water rudders, plus the rudders themselves,the simplest way of steering a model is to extend a brass rod from the rudder to the water. On the end put a small brass plate that will be submerged in the water and acts in conjunction with the rudder. For a simple operation like this, results are quite good. All you have to do is to be able to stand the ugliness of this water rudder hanging down from the rudder. Not the most eye-appealing feature! In about a month or two, SAM 30, the Sacramento Valley club, will be putting on another hydro meet (the first one we reported on last year). No doubt, many new gimmicks will make their appear ance. We will try to bring you these ideas Another Anderson Pylon, thiion e by master builder Bud McNorgan. Note how everyone stops and what type and design of models what they're doing to watch this bird take to the air. Powered by Forster .99 (what else?). 38 R/C MODEL BUILDER Jerry Persh, of Annandale, VA. shows off his fu ll and .020 versions From Sweden comes this photo of Karl Pettersson with his "F ib." of the Comet Sailplane. Big one built from kit. Karl built his first Fib some 40 years ago. proved" Chunn engine, Model Two homemade coil winding machine. many of the small engine manufacturers appeared in the advertising pages in the Credit should be given to an expert out of business, and Chunn was no January 1939 Model Airplane News. This German machinist known as Schaeffer exception. engine became known as the “ Chum." who helped immeasurably in the manu FORTY YEARS AGO I WAS... It featured a movable timer which aided facture of the Chunn coils. As with most This story doesn't exactly fit the title, greatly to the performance. The timer, coils of the day, the Chunn coil used but Bill Harris, M.D., of Honolulu. w ith a sand cast body, em ployed a w ipe waxed paper insulators between the Hawaii, wrote such a good yarn in his type point system. primary and secondary windings with a letter, we couldn't resist it. Engines were initially priced at $17.50 waxed paper cover plainly stamped Bill sez the saga of his Comet Clipper or $18.50, depending on the particular "C h u n n .” goes as follows: advertisement you happened to run Not too much can be said about the "M y original C lipper was built 40 years into. With the demand increasing for enthusiasm that Bob Chunn’s small ago. Like all Comet Clippers it featured small motors, Chunn’s second model engines a roused in Nash ville, Tennessee. collapsible wings and a non-starting enjoyed a considerable modicum of In those early days, small engines were motor. Was that model ever frustrating! success, over several hundred being regarded as a novelty, and even Bob "In an effort to gain revenge, I ob produced. Not bad for a barber who himself was unsure of the market possi tained Comet Clipper plans from John started pperations in the back room! bilities. Just about the time the demand Pond about five years ago together with However, despite President Roose for small engines arrived, the Ohlsson a P&W partial kit of same. Wallock (the velt’s attempts to prime the economy .23 appeared on the scene. This excel W of P&W) advised me a .35 to .45 engine (the great depression was a real dinger!), lent starting and running engine put would be sufficient power. a m ild recession set in during 1938, with the net result that Bob Chunn was forced to drop his prices (competitors such as Bunch motors were selling at $10) to maintain sales. Of course, with profits low and very little capital to weather the recession, Chunn finally had to turn over what he had left to satisfy the stockholders. Bob Chunn continued in a small shop to produce "specials” and to repair and rework the old Chunn engines, but that’s another story. For those who are technically minded, the bore and stroke of the "Chum " was .625 X .531 inches, giving a displacement of .163 cu. in. The cylinder, of cast aluminum, featured a pressed steel liner. The lapped piston was machined and lapped with two oil grooves. A flat finless head was drilled for a large 3/8 V-1 spark plug. Most all parts were turned from bar stock, such as the back plate (steel) and the connecting rod (bronze). A sand cast alum inum crank case com pleted the engine. Interestingly enough, according to John Krickel, who wrote an article for the early issues of the M odel Engine Collectors Journal, spark coils were wound in the Chunn shop utilizing a OCTOBER 1979 39 A real purty R/C Miss America by John Camp, San Marino, CA, Here's an interesting Old Timer low-wing ship by Jack Dyer. Pond complete with Brown Jr. Kraft radio. might draw plans if there is enough interest. "So. in my innocence. I installed a glow ments surrounding the crater, and the shifted in flight. Undaunted. I cleaned Super Tigre .35 and watched the motor darn thing glided back into the crater. the model and the motor, replaced the demolish my handmade aluminum The hell with it! I left the model mali propeller, and flew it again. mourns. So, getting smart, I iraded the ciously hiding in the bushes and turned “ Hot dog! The flight was a fairly good Super Tigre for a K&I3 Veco .19. This to the Comet Mercury plans (also ob one, but alas, w ith its penchant for self engine remained in place long enough tained from Pond). destruction, the Clipper did not termi to haul the Clipper into a graveyard right "To my pleasure, the Mercury flew so nate its flight with an ‘aloha thermal' but spiral. Again, the Clipper demonstrated well on a Tee Dee .049 that I was en rather crashed into the National Guard its propensity for collapsing wings. couraged to repeat my folly with the Armory. The model narrowly missed Clipper. I spent three days combing the hitting a car and a very surprised Armory “ Fixed the wing (again!), put a throttle crater and with incredible bad luck was employee. on the K&B to regulate power. I turned it able to find the model, almost intact loose in the Diamond Head Crater with a "At this point, the Clipper resembled after three months of torrential rains! full three ounces of gas, hoping to wave a ruptured June bug. I fixed it again (!!) a fond 'Aloha' as it disappeared over the “ So I fixed it (some guys never learn!) and having had it with Diamond Head. I ocean. and installed an .049 Tee Dee Cox m otor surreptitiously flew it from Bellows "Instead, the engine strangler) at 600 in it. I watched the model dive 300 feet Field. The model whined its way up to feet, about even with the gun emplace into a mudpie as that blasted wing Continued on page 112 P eerless B umther OLD TIMER Model of the Month Designed by: Walter Schultz Drawn by: Al Patterson Text by: Phil Bernhardt • The Peerless Panther is one of those attractive O.T. models that everyone active in O.T. flying knows about, yet nobody seems to build. D on't ask us why this is. as you'd have to have a heart of stone to resist this classy looking low- M odel Airplane Co. starting in 1940, and realistically. For control surfaces, try winger. The only one we can remember was designed by Walter Schultz. It's not putting the rudder hinge line 1/2 to 1 seeing was al the 1977 SAM Champs at the kind of airplane you'd want to pit inch behind the fin spar. Locate the Las Vegas. Someone showed up with a against a Zipper or Playboy, but, proper elevator hinge line from 1 to 1-1/2 Panther with a new diesel that was still a ly powered and trimmed, it should be inches forward of the stab t.e. at the bit on the tight side, and he was at the able to hold its own with just about any center. The Panther has a very short nose field on Monday, when everyone was other low-wing O.T. model around. An moment, so mount your gear as far test flying, getting some running tim e on Arden or Bantam, or even an Ohlsson forward as possible to get the C.G. at the the engine. He wasn't flying ... just .23. should be a good choice for F/F. 50% mark shown on the plan (on the having a good time talking with the guys, And don't overlook the Panther as a wing panel drawing). airplane in hand, engine humming possible subject for R/C sport flying, By the way, the now-defunct Micro away. The model impressed us as being a either. If built lightly and with a light Models company used to kit an R/C real fly-for-fun ship, something that 2-channel system, a good .049should do version of the Peerless Panther a couple would appeal to the readers of R/C MB. nicely. An .09 or .10 is about the lim it if of years ago, and there still might be one The Panther was kitted by the Peerless you want the model to fly halfway on your dealer's shelves. · 40 R/C MODEL BUILDER OCTOBER 1979 FULL SIZE PLANS AVAILABLE - SEE PAGE 116 41 Murph Misiewicz holds his LSD Ornith, one of the big scale sail- Last few seconds before touchdown, Andy Anderson on the sticks, planes imported from Germany by Windspiel. Spans 139 inches. Note full-open spoilers and landing wheel. Rc SOARING PHOTOS BY AUTHOR by Dr. LARRY FOGEL. • We all want the best of both worlds, cinitas, CA, decided to build this kit. The but there’s always a tradeoff between fuselage is fiberglass. He reports that the stability and maneuverability. Once in canopy and ABS plastic tray are pre awhile a scalesailplanecomesalong that formed and go together easily. The is very stable, yet far more maneuver- material is of good quality throughout able than you'd expect. The LSD Ornith with especially fine die-cut parts. The is a case in point. This 1/5-scale, 22:1 wings have ailerons and are at two aspect ratio model really looks like its degrees dihedral. This helps make it full-size counterpart. The wingspan is look neat, but it alsochallengesthepilot 3530 millimeters (about 11-1/2 feet). I to make level landings. Spoilers are not Making a fast pass at Torrey Pines. Ornith is use metric to emphasize that this kit is supplied in the kit, so Murph installed equipped with ailerons, turns quickly. imported from Modellbau Wanitscheck the Soarcraft Magnum 12 spoilers, and of West Germany, by Windspiel Models they work well. There’s practically no Murph fully sheeted the top and bottom (1844 W. Glenoakes Blvd.. Glendale. CA change in pitching when you open them of the wings to allow fo r aerobatic stress. 91201). and increase the rate of descent. Now he can relax as the plane goes Recently. Murph Misiewicz. of En- In accordance with the instructions, Continued on page 103 No. it’s not a Bird of Time, it’s an old Thermic 100 belonging to Judge John Menard's original sailplane designed for a combination Ernie Wrisley. Originally designed by Frank Zaic. slope/thermal contest to be thrown by the Torrey Pines Gulls. Ernie's Thermic 100 paints a pretty picture against the sky. Plans for this and other classic gliders are available from John Pond Old Timer Plans Service (see ad). 42 R/C MODEL BUILDER *· ·* * * * * * * HOW TO SITE PICK A * * * * * SLOPE SOARING * * *■ By DAVE THORNBURG . . . Potential slope soaring sites abound all over the U.S., but there are a few things to consider before pitching your pride and joy off of just any old hill. Continued next month. • It always surprises American soaring buffs to learn that in England and northern Europe there are probably five times as many slope fliers as there are thermal fliers. And their typical flying sites . . . Ivinghoe Beacon, north of London; Kirchheim Teck. near Stuttgart . . . d o n ’t look a bit like Torrey Pines. No ocean, for one thing. (No nude beach, for another. But I digress.) ‘'How can these people fly slope when they don’t even live on the seashore?” you may wonder. “ Everybody knows that slope soaring is a waste of time if you d o n ’t live within walking distance of the Pacific Ocean.” Not true. The vast m ajority of the w o rld ’s slope the wind is westerly you can soar a top of the hill is treeless and flat enough soaring takes place miles from the football o ff Sandia Crest, yet the best to make landing easy, and because there nearest water. In fact (get a firm grip on flying in Albuquerque is not east but are no big obstructions out in front of your sphincters, now) most of the Cali west of town, on a little slope barely the slope to block the wind. fornians I know live within an hour of higher than a two-story house. Why? All you really need to go slope soaring the ocean, and yet do almost all of their Because the wind is seldom toostrongat is a bald bulge on the surface of the sloping at inland sites! The Torrey Pines that humble altitude, and because the Gulls down in San Diego are not merely Continued on page 93 an exception, they are practically unique in theworld. Nootherclubthat I’maware of does half as much "saltwater sloping” as the Gulls do. And even this club has an inland site as a backup, for those days when the cliffs are too crowded, too calm, too foggy, or too northerly in wind direction. Surprised? Good ... it’s about time somebody cut through some of the myths of slope soaring, because the plain fact is YOU CAN FLY SLOPE ANY WHERE IN THE UNITED STATES . . . you d o n ’t really need an ocean at all. If the folks in Oklahoma can fly slope (and I know they can, because I’ve flown with ’em) then you can fly slope, wherever you live. You don’t even need mountains, although they’re handy. A few mileseast of Albuquerque, New Mexico, is Sandia Crest, a straight-up mountain that’s almost 11,000 feet above sea level. When OCTOBER 1979 43 Mitch Poling's Cox Cessna Centurion, converted to electric using the power unit from the Cox Motor installation in Centurion. Motor is Electric Sportavia. A good performer. fixed to Midwest aluminum mounts. £ELECTRIC POWER By MITCH POLING p h o t o s b y a u t h o r • Most of the general questions I get motor scale; boats: available kits; avail from readers are about motor size and able plans; battery specifications (ni-cds weight, planesizeand flying weight,and to lithium cells); solar powered aircraft; where to get kits or plans. I’ve just electric manned flight; electric heli finished reading Bob Boucher's book copters; electric cars; and a complete "The Quiet Revolution” for the fourth copy of the electric flight patent granted time. Each time I’ve learned something to Astro Flight. (Now that was the new, and the book is a valuable refer longest sentence I have ever written in ence for me. And, most impressive of all, an electric colum n!) Now you can see it answer almost 100Ά. of all the ques why I’ve read it four times and w ill read it tions I'm asked by readers! again. This isn’t a lucky accident. Bob owns This book stimulates some thinking, and runs Astro Flight, and he knows besides answering questions. Bob gives what questions beginners to electric information for conversion of the flight ask, because he has to answer American Eaglet, a homebuilt man THE QUIET them more often than even I do. So. to carrying powered glider, to electric REVOLUTION everyone starting electric power, get power, using a five-horsepower electric this book! It covers fast charging; gives motor. Interesting! Two twelve-volt THE COMPLETE MANUAL OF the horsepower curves and the flight batteries, 60 Ah. rating, could get the ELECTRIC PROPULSION SYSTEMS duration for all the Astro motors; motor Eaglet up to tw o thousand feet in ten installation: a complete chart of all the minutes. This is equal to the standard ROBERT J. BOUCHER motors with recommended props, flying tow for a glider. Just think: no fuss, no weight, wing area and loading; motor muss . . . just switch on and go thermal speed control; free flight and free flight hunting, free of launch requirements. It "The Quiet Revolution," new book on elec scale; electric sailplanes; Old Timer does sound appealing. tric power, by Bob Boucher. R/C; sport aerobatics; R/C scale; multi This book fills a real gap in the de- Photos above are typical of what you w ill find in Bob Boucher's new book. If you are new to electric power, or even if you have been flying electric for years, do yourself a favor and get a copy, it could save you a lot of headaches later. 44 R/C MODEL BUILDER Since this com bination was so success ful, I decided to try the Cox Cub with an Astro 020. The Cox Cub is designed for the first-time beginner and comes with a Pee Wee .020 gas engine and a 100 mw radio set (rudder only) for a retail of $99.95. I did get this com bination, but the plane alone can be purchased as replacement parts (wing, No. 99003, $7.95; fuselage. No. 99097, $16.95; land ing gear, No. 99099, $2.95; decorative stickers, No. 99040, $1.95) from Cox Hobbies Inc., 1505 East W arner Avenue, Santa Ana, CA 92702.1 flew the Cub w ith gas power first, but used the wrong fuel and got into trouble. The small engines really need high nitro fuel, in the 20% to 30% n itro bracket, and all I had was 10% fuel. This cost a lot of rpm’s, and the Radio installation in the Centurion. Note push-push switch, positioned so that motor can be plane didn’t climb well. The ground turned on and off by applying a blip of down elevator. Held in place with servo tape. range of the 100 mw transmitter is about 250 feet, which at the low altitude (25 mand for information on electric power. insert (it was held in with double-sided feet or less) meant that the plane got out Read it several times; you will be re tape), cut it in half, and put the front half of range at 300 feet or so. The plane goes warded with new ideas each time you back in. This gives an open space for the into an automatic right turn when this read it. Congratulations, Bob, on a good Cannon receiver and Bantam Midget happens, and at that low an altitude and job, and thanks for the time and energy servos, and provides pockets in front Tor light weight, there is no damage except you dedicated to getting it done. It is the receiver and motor packs. The to the pilot’s ego. However, with the going to be a big help for the electric receiver pack is the Astro 250 mah fast- engine running right, it does fly well enthusiasts. charge pack (10 minute charge gives from the reports I have from those who I am including some photos of some over an hour flight time). This plane and have the Cub, and range is fine with a of the installation details on the Cox motor make a very good combination, little altitude. Cessna C enturion converted to electric fast climbing and capable of all the two- Anyhow, I took off the gas engine and power, using the motor supplied with channel stunting. Continued on page 98 the Cox electric Sportavia. Note how neatly everything fits. The motor is mounted on Midwest .09 T-bar alumi num motor mounts bolted to the fire wall, easy and simple to do. The m otor pack goes forward where the receiver batteries on the gas version would go. I provided no cooling, but I would recommend cooling air holes .. . the battery pack gets too hot after tw o flights without them. The elevator servo arm contacts the push-push switch for motor on and off using full down. Both the switch and the servo are mounted to the fuselage sides with double-sided foam tape. I did remove the foam radio mount The Cox Cub makes a good electric model w ith an Astro 020 and rudder-only R/C. Flies best with 5-1/4X3 Top Flite nylon prop. * Astro 020 motor in Cox Cub is mounted in Radio installation in Cox Cub. Uses Cannon radio with just one servo. Full right rudder activates a rolled file card tube epoxied to firewall. push-push switch for on-off motor control. OCTOBER 1979 45 Foam blocks are glued into the forward hull section for extra A radio box is also available to fit the Prather Deep-Vee. Uses plenty flo ta tio n . of screws (38 in all) to keep the lids on tight. visiting with him and talking model boat design. Prather Products was interested PRODUCT® IN USE in something along the lines of a 40/60 size deep-vee design. George designed THE PRATHER DEEP-VEE, by JERRY DUNLAP. a very beautiful 40-inch deep-vee hull PHOTOS BY AUTHOR that can be raced in either deep-vee or m onoplane class. The boat has a 17 • Many model boaters may not be all control. And up until just this year, that degree vee with 12 inches of beam. It is that familiar with the name Terry Prather, interest had been confined strictly to certified legal for both IMPBA and or the firm Prather Products. However, model aircraft. However. Prather Prod NAMBA. those of us who follow R/C flying as well ucts has elected to become involved in Taking George’s design, Prather Prod as R/C boating are most cognizant of the the model boatingaspectsof R/C models ucts turned its experiences gained in contributions made to R/C pylon racing and the new Prather Deep-Vee is Terry’s making model racing aircraft to making by Terry as a competitor and supplier of initial offering upon the model boating a model racing boat. The most notice airplanes and accessories. I doubt there altar. able difference between the Prather are many who keep abreast with model Not being all that familiar with design Deep-Vee and other fiberglass model pylon racing who would not give Terry ing model boats, Prather Products con boats is the absence of gelcoat on the Prather credit for being a most signifi tacted George Campbell, of Los Angeles, outside of the hull. The Prather Deep- cant factor in the development of that for assistance. George is a very well- Vee features clear epoxy-fiberglass facet of R/C modeling. He has won known model boat designer having pre construction for added strength and national championships in pylon racing viously designed the “ Lil Lightning” w a rp resistance. Ease o f assem bly is as well as establishing many records in outboard tunnel for Steve Muck's R/C this field. Prather Products, 1660 Ravenna Boating Supplies and Norco Marine- Ave., W ilm ington, CA 90744 is an o u t craft’s "Eaglet.” I’ve known George for a growth of Terry's interest in radio number of years and always enjoy Engine mount installed between the maple bearers. K8 Wooden bearers were installed with Sears Filled Epoxy Cement. The brass shaft log epoxied to the bottom of the hull. Masking tape Note hole for flexible prop drive. keeps epoxy in place. 48 R/C MODEL BUILDER Bottom of the boat where shaft log exits the hull. More masking The hull with K&B primer and spot and glazing putty to cover up tape to keep the epoxy under control. small cracksand pinholes. View showing the hinge that holds the hatch to the deck on the Hatch up to reveal the fuel tank, K&B 7.5 Marine, OPS 60 tuned a u th o r's deep-vee. pipe, and radio box. assured, since the boat comes with the running hardware kit available for $69.95 Prather booklet has a glossary of terms, a hull and deck joined. This really isa great that includes the strut with brackets, definition of a deep-vee boat, informa advantage for the new model boater rudder with brackets, trim plates, drive tion on selecting an engine, tuned pipe who has never ventured into the won dog, prop nut, turn fin, shaft log, flex and radio. There is even information on derful world of fiberglassing the deck to cable with stub shaft, thrust bearing, where to run your boat and model the hull. However, I have heard more water pick-up, and stainless steel m ount boating organizations and model boat experienced model boaters state that ing screws with nuts and washers. An ing competition. I was impressed with they’d rather not have the parts joined other rather nice option is the hatch their efforts in this area. I’ve even shared because they want to lower the profile cover that adds both scale appearance my copies with new model boaters of the hull. I personally rather like the and helps to keep out water that might because there is so much good, usable scale appearance of the hull and think splash over the deck. The cost of the information in that booklet applying to this would be lost by lowering the hatch cover is $18.95. C om pleting the model boating in general. profile. The use of epoxy-fiberglass offerings from Prather Products is a INSTALLING THE HARDWARE construction makes for a light boat. The radio box designed fordeep-vees made The one important piece of hardware Prather literature also states that another from epoxy-glass. The radio box sells for that Prather Products doesn't offer is the advantage of the epoxy-glass is that it $16.95. motor mount. However, there are a breaks rather than shatters if you should In the previous paragraph I made number of fine mounts that can be used happen to have a severe collision. I only mention of the instruction booklet that in this hull. Besides the K&B Marine hope I don’t have occasion to find out comes with the hull. I would have to say Specialties Multi Mount that I used in about that feature! that Prather Products has come up with my hull, either Octura M odels or Steve Prather Products is marketing what it one of the most usable instruction M uck’s R/C Boating Supplies has mounts calls "A Com plete System” for its vee. booklets I have ever seen offered in that can be used. The hard maple motor The hull sells for $99.95 and includes 3/8- model boating. Basically, it is a book that m ount rails are really dandy. The rails inch hard maple motor mount rails, includes 46 excellent photos showing all must be drilled and the motor mount plywood transom plate, and an instruc phases of assembling the hardware and bolted between them to serve as a guide tion booklet. I’ll mention more about running the boat. Besides the usual to hold them in position while they are that instruction booklet later. There is a things found in all instructions, the Continued on page 106 Finished boat isa real mover. One of the highest performance deep- vee racing boats you can buy. OCTOBER 1979 49 1) Development of skill and confi dence in handling the boat during prolonged luffing. 2) Sharpening one’s grasp and use of the racing rules. 3) Honing of ability to handle boats in close proximity. 4) Widening of your view of the race course to include a total of 4 boats instead of only your own. 5) Learning how to make your boat go S-L-O-W-L-Y. The skill level on the teams is unim portant as long as the two teams are balanced. Sometimes a little experience with this format will uncover skills in a skipper which are not readily apparent in the fleet sailing situation. Skippers w ho may be routinely forced to sail in the middle of the pack by their general skill level may be capable of handling that situation much better than the local hot shot who is usually in clear air out front. A team composed of a veteran and a novice will test the mettle of both. The former must assure that one of the competition finishes last, while the novice must maintain boat speed and keep from getting trapped. This kind of team racing may be a way to get more spirit, etc. in our competi tions between clubs. Most clubs seem to have a core of 6 or so members who will hike dow n the road to the next club for a day of sailing. Why not divide your guys up into three 2-man teams. Have each PHOTOS BY JOHN HANKS, JR. team sail a best out of 5 races w ith the • While I've attended 45 boat regattas team’s 5. I must drop back and push the host team pair. This allows 15 full races if and enjoyed the range of boats and other team from 2nd to 4th, letting my each match goes the full 5, or only 9 if skippers, some of the most rewarding buddy through into 2nd (Fig. 1). there is a domination. This opens up a sailing is done in small fleets or on off The courses are kept small to maxi whole can of worms in figuring out your days when a few gather at the pond mize the chances for interactions around club’s teams. If regatta team pairings are strictly for fun. Asa means of sharpening the buoys. Rather than assign points as drawn by lot, you should try to spread boat handling and improving sailing foul penalties, the offending skipper the hot shots through each of your three skills we've recently tried team racing exonerates himself by being the last to pairs. with two boats on a team. The scoring round the next mark. If no one accepts While 4 boats are sailing, the other Ö system used is as follows: responsibility the protest is decided in are cheering, coaching, hosting or just 1st — 1-1/4 the usual way. but the side losing the plain enjoying being part of the scene. If 2nd — 2 protest loses the match, so protests are your club gives this a try, why not drop 3rd — 3 generally quite rare. me a line with your reactions and the 4th — 4 W hile any class of model yacht can results? One quickly sees that being the last play, we are most pleased with the one- From time to time I’ve tried to con boat in seals the loss for your team. design and sail in EC/12’s. Flaving the vince the budding naval architects Dominant tactics become those of using boats evenly matched in all conditions among us that sharing new designs is the rules and clever vessel handling to makes the pack of 4 boats stay close necessary for the health and perpetua push an opponent into last and leave together and generally avoids a 1-2 tion of the sport. In the past, designs for him there. For example, if my partner is breakaway. Some easily-applied match both 50/800’s and A-class boats have last and I am first, there is no use my race considerations can also keep the been donated by such luminaries as going on to finish since we're going to breakaway under control at the start. Forest Godby, Adrian Brewer and Ben finish with 5-1/4 points to the other The benefits to the skipper are many: Continued on page 103 HankerCHIEF really moves out in heavy weather. Wind was 20, gusting to 30 on day these photos were taken. 50 R/C MODEL BUILDER sua isóóiv ysauna H ·«** H I OCTOBER 1979 FULL SIZE PLANS AVAILABLE - SEE PAGE 116 51 Two wooden Excalibur tunnels belonging to Dennis Caines (left) Closeup of the horizontal engine mounting in Randy Seiser's .21 and Jerry Dunlap. Will be a future R/C MB construction feature. hydro record holder. Gator 21 with K&B 3.5 and OPS pipe. R/C POWER By JERRY DUNLAP PHOTOS BY AUTHOR A NITRO-LESS MODEL BOAT RACE and he reported the cost at under $4.00 a Ron Erickson brought out most of his A few issues back I expressed some gallon. fleet of very fast boats to try the no -nitro concerns about the rapidly increasing Prior to the beginning of the actual fuel. Ron did considerable testing with price of nitromethane and also its race, two hours was allowed for par props on all his boats prior to the apparent decrease in availability. For any ticipants to play with different props and beginning of the races. Ron found it of vou readers who actively participate attempt to find a new needle valve necessary to run smaller props on both in the competition aspects of the model setting. None of the participants made his deep-vees and hydroplanes to get boating hobby. I'm not telling you any changes to their engines internally. I the engines to turn up higher. I was able anything new when it comes to price elected to concentrate on just trying to to obtain some of Ron’s times from increases for the juice our little engines dial in my Excaliber outboard tunnel other S.M.Y.C. races and it is very love to swallow. However. I think many with the K&B .21 Outboard and left my interesting to compare what he did of you might be interested in the results other boats at home in the basement. without nitro to what he has done with of a model boat race conducted by the After using much of the two hours to nitro. Ron usually races with 55% nitro Seattle Model Yacht Club when they play with different props and engine fuel. Ron’s best time this year in the .40 decided to find out what it would be like settings, my tweeking showed very little H ydroplane class was a 1:30 for the 5-lap, to race without nitro in the fuel. difference in performance over what I .9-mile N.A.M.B.A. record oval course. On June 16. at their Kent Lagoon had been doing w ith 40% n itro fuel. It On the nitro-less day. Ron used a K&B running site, the Seattle Model Yacht was necessary for me to come in 3/4 of a 7.5 in a Gator 40 and turned in a heat Club hosted a methanol race for all turn on my needle valve. For all the time time of 1:31.40 and another time of classes of model power boats. Bill Hor- I spent playing with different props, the 1.32.50. Now, that really isn’t too bad. In nell. a N.A.M.B.A. record holder in Scale one I used w ith 40% fuel w orked the best .60 hydroplane, Ron had posted a 1:31.72 Hydro and X Hydro, was the individual on my boat w ith n o -n itro fu e l. There was for his best time of the year using nitro. responsible for proposing this particular some loss in overall speed in all the Now get this: Ron turned a 1:29.17 w ith race and served as its contest director. boats, and I would estimate a 3 or 4 mph his OPS .65-powered Wing Ding using All participants were instructed to use loss on my boat. The thing that became no nitro! Why the faster time? Well, in the fuel provided by the S.M.Y.C. and most apparent was that the stock out previous races, Ron had some other several fueling stations were placed in board tunnel class suffered less speed boats to race against. But during the no- the pit area. The fuel was a m ixture of loss than any o f the other classes. This nitro race, Ron ran almost singles be 80" methanol and 20".. Ucon oil for can possibly be explained by the fact cause the other boats didn’t keep lubrication. There were no other in that the stock outboards are not using running. gredients in the fuel. The cost of the fuel tuned pipes, are swinging rather small Things were not quite so close when was included in the entry fees for the props, and are running on tunnel hulls we began comparing times in the deep- races. The fuel was mixed by Ron Erick that fly over the water rather than race vee class. In the .40 deep-vee class. Ron son. another N.A.M.B.A. record holder. on it like a deep-vee. had run a 1:45.08 this year using nitro. W ithout n itro , his best tim e was a 1:59.7. Bill Hornell, racing a K&B 6.5 Wardcraft Vee, turned in a 1:53.6 on methanol. I know Bill ran some mid 1:30’s last year, so you can see that the deep-vees show a much greater speed loss than the hydro planes. Since I do more tunnel outboard racing than other classes, I was very interested to see how the times would com pare in this class. I wasn’t provided with a time for my fastest heat on methanol, so unfortunately I can’t give you what the difference was on my boat. However, Dennis Caines, who races a very fast Excaliber type design, did have Another Gator 21 belonging to John Moss leads the .21 hydro class after four races in NAMBA a previous time of 2:04.75 using 50% District 8. Uses OPS .21 with pipe, Futaba radio. Continued on page 90 52 R/C MODEL BUILDER FIRST NIGHT SPORT RUBBER .... 54 fgEE_FLÍGN7· FREE FLIGHT SC ALE ...... 56 HANNAN'S HANGAR ...... 58 POLISH PEANUT (LUBLIN R-XII) . . 59 AND MAKING BALSA WHEELS ...... 62 CONTROL LIN E ...... 63 FR EE F L I G H T ...... 64 ^Ρλ/t r o l l in £ Flightmaster Jack McCracken, Norwalk, California, built this beautiful Jumbo Rubber Scale Hawker Furv- As w ith all of Jack's models, it flies as well as it looks. “FIRST *** »* N IG H T” By JIM MOSELEY and JOHN GODDEN . . . This model is just the thing to get your young son or daughter started in modeling. Give it a try! PHOTOS BY JIM MOSELEY • If performance is what you crave, then Propellers can be a problem to the turn elsewhere in the pages of R/C inexperienced. John solved this by using Model Builder. But if you require a a 12-inch plastic propeller from the simple, tough and reliable little airplane KeilKraft range, cut down to 11 inches, which flies stably and well, either as a though this is not too critical. I forgot to first personal project or as a model to be do this on Paul's m odel, but as the model uickly built for an upcoming small son/ isn’t aware of it. it flies just the same aughter/brother/sister. etc., then anyway. One thing to watch is the “ First N ight” is really the one for you. balance of the plastic propeller; someof Frank Zaic once said words to the them are way out of true and require effect that a youngster is not too inter quite substantial sanding of the heavier ested in super duration, preferring blade. An unusual item is the absence of instead a model which climbs like crazy, a freewheeling assembly, so there’s no flies well enough to be satisfying but tricky wire bending to bother about; does not require too much chasing, and when the rubber turns run out, the prop this model fills that need to perfection. stops and dow n comes the ship in a safe, It was first designed and built by John steep spiral instead of gliding away into Godden back in the early '70s as a the sunset. suitable model for his younger son The prop shaft size might appear Martin (then five years of age) to throw flimsy, but it is quite sturdy enough for around while Dad flew more exotic general use. John’s philosophy was that ships. M artin was flying his First Night for thicker wire was more difficult to a full season before it came to my straighten on the field, once bent, attention, and I promptly talked John whereas the lighter grade could easily out of a set of drawings and built a be trued up with fingers and pliers if the replica for my own boy, Kevin, w ho was need arose. On reflection. I think I have approaching a similar age at that time. Λ only once had to do this in the five years couple years later a second version was that Kevin has been flying his version, so built for younger brother Paul when he, don't w orry too much about it . . . if it in turn, reached the same ripe old age. makes you happier, you'll go up a size "H urry up and take yer pitcher so I can launch." Paul Moseley, 6, with First Night. and at the time of this writing (May Continued on page 86 1979), both models are still going strong after five and three years, respectively, of hard and constant use without dam age other than the occasional tissue patch, though a few rubber motors have been worn out during the period. John's main objectives were strength, sim plicity, and ease of assembly, and these are achieved to the full. Construc tion is basic, even for the beginner, and for once the weight problem is of no concern, as all stripwood is of hard stock. Even the ribs, fins, etc. are of firm balsa. It's economical, too . . . the tail- plane is completely built from the leftovers from the wing spars, etc. Wing panels are butt-jointed together, the angled ribs used on each panel providing the necessary dihedral and obviating the usual fiddly trimming of the l.e., t.e. and spars to fit one another and then to be ply braced (you’ll be surprised at how much quicker and easier it is to assemble a w ing this way. I now use the system on any sort of airplane now). The covering is of heavy grade tissue on the fuselage and flat center panel of the wing, with medium Kevin Moseley (right) and younger brother, Paul, are the picture of professionalism as they weight elsewhere. ready Kevin’s model. Big Keil Kraft prop may be hard to find, can use 9-1/2" Peck prop. 54 R/C MODEL BUILDER Tom Laurie makes adjustments to his Stahl PT-19 at Stahl vs. R. C. Bartlett had one of only two Lindberg designs that showed up, Lindberg meet put on by the Flight masters. a very nice Cessna Airmaster. Made first flight at meet. had read about. As it turned out, the prop didn’t work, and I simply hung up FREE FLIGHT SCALE the model for a better day. Since this was By FERNANDO RAMOS the better day, I dusted off the Fairchild and switched props. In doing so, I PHOTOS BY AUTHOR encountered a problem that I would like to pass along to you so you won’t make • This afternoon I attended the first of were represented were: PT-19, Messer- the same mistake. On the nose of the what may become a regular event for schmitt 109, Waco SRE, Caudron (not the model, I had permanently installed a the Flightmasters on the West Coast. racer), Interstate Cadet, Taylorcraft nylon thrust button that is available from They held a rather informal gathering to Grasshopper, P-51, Fairchild 24, and the Peck-Polymers. I had reamed out the consider the competitive differences General Skyfarer. There were a few hole to .040 to accomm odate this size between the Paul Lindberg rubber scale duplicates, but not many. Every model wire for the prop hook. I didn’t think to designs as opposed to the Earl Stahl flew, and flew well. Abe Gallas has an place a metal washer between the nylon stable of rubber-powered scale models. Interstate Cadet that he has had around and the plastic. As it turned out, the Well, the outcome may have been pre for quite some time, and it continues to plastic galled so badly that the prop dictable. It seems that the majority of beat out the competition in almost every refused to turn, even with several hun those in attendance decided they would event that he has entered it. He had a dred winds in the motor. Needless to give it a go with the Stahl models. I say high time of 1Ö minutes as it piggy say, this is no way to achieve duration! predictable because the Lindberg de backed a thermal! Fortunately, it landed I’m sure that the washer would have signs take a great deal more time to not too far from the launching site. taken care of the problem, but I don't construct than those of Stahl, and most There were several mass launches think I will use this combination again. modelers do not want to spend that pitting the monoplanes against each As Harold Warner commented, "It wasa extra lime making movable ailerons, other, and biplanes against biplanes. galling experience!” Yes, I do agree! elevator, and rudder, plus all of the Again, I can’t emphasize enough that O ne nifty thing that I did observe was engine detail that was com m on practice this was strictly for fun. The flying site Andy Faykun’s unique way of retaining with the Lindberg beauties. I can't say was new to a few of us. It was held at Cal the rem ovable part of the cowl to his that I blame them. At any rate, there State Dominguez Hills, home field for Interstate Cadet (see illustration). He were only a couple of Lindberg models. the Soaring Union of L.A., an R/C glider had two small eyelets installed in the One belonged to George James, presi club. Apparently in the spring this is firewall, or what would normally be the dent of the Flightmasters. He had a super really super, w ith flu ff green grass. I can firewall, one on either side. Matching Goshawk that flew as well as it looked. see that this is m ore ideally suited to F/F the location of these two eyelets on the The other model was a very nice Cessna than the hard tarmac that we have at rem ovable p ortion of the cowl were two Airmaster belonging to R.C. Bartlett. It Mile Square park. Gas power is pro matching wire plugs. These were made also flew right off of the board (literally) hibited, one of the conditions that of very fine wire and shaped as shown. since R.C. had not test flow n it prior to allows the glider guys to use the field. Once inserted into the eyelets, the cowl the "gathering.” (I don't want to refer to I flew a Stahl Fairchild 24 that I had stayed in place beautifully. Slight thrust it as a contest, since in the true word, it built many years ago, to be used as a test adjustments can still be made by shim was not!) Some of the Stahl designs that bed for a novel propeller design that I ming between the firewall and the Ken Smith shows off his Stahl Caudron. Site is south end of field Mik Mikkelson brought a nicely-made version of the Stahl Taylor at Cal State Dominguez Hills, an R/C glider f ield. craft, done up in m ilitary colors. 56 R/C MODEL BUILDER Bill Warner's Stahl Waco Cabin was detailed right down to the scale A slightly bent landing gear on Flightmaster's President George prop. One of the best designs for a F/F biplane. James' Lindberg Goshawk. Note moving ailerons. removable portion of the cowl. past, such as the tried and true balsa you will find a kit with the same pattern In order to get the two pair of holes sealer, being dope mixed with talc. Or used for both sides. This w ould give you lined up properly, I would suggest that balsa dust and dope. etc. The one I read a side with the bulkhead location on the the firewall and the removable portion about was simply dipping the part in inside of the fuselage and one on the of the cowl be drilled at the same time. straight dope, and letting the part drip outside.) Of course, this would have to be done dry. so to speak. I tried this recently with The quality of the wood is excellent, prior to the permanent installation of an all-balsa headrest, and I want to say and everything is furnished to complete the firewall. I would suggest tack-gluing that it really does work. All kindsof parts the model including tissue, prop, wheels, the two parts together, then drill from can be treated this way. When dry, sand etc. It is shown with a CÓ2 installation the back of the firewall to the front w ith 320 wet-or-dry, then re-dip (is that a but it is ideally suited for rubber power. section of the cowl. Just be careful that word?), this time sanding with 400 grit. The cost is $5.95, w hich isn’t inexpensive, you don’t drill all the way through, Three dippings ought to get the finish but in this day and age not too many leaving two unsightly holes that would you want. No more brushing for me! things are. Any Junior should be able to have to be filled. I would also suggest A few months ago, I mentioned the build this one with little effort. that you start with a fairly smal! drill size plight of the beginner as to the lack of Talking about Flyline, I have been . . . say a No. 60. Then the two parts could good, quality kits. Juniors have many kits Continued on page 110 be separated, followed by the enlarging to choose from, but those which are of the two holes in the firewall to 1/16 available are usually too complex, wood inch to accommodate the eyelets. This sizes too small for young fingers, etc. way you still have small holes in the Also, many kits I have seen have poor noseblock for the fine wire plugs, quality wood . . . done so in order instead of ones that are much larger than to keep production cost down. This is needed. This same principle could be understandable, but it certainly doesn't used in other cowling applications. do the beginner any good, because he It is interesting to note how much of needs all the help he can get just to finish the new Pirelli rubber is being used by a model. Well, Flyline hasjust the ticket! the modelers. It seems to do the job just It’s a model called the "Flyette.” You fine; however, I did see several of these never see the model advertised except motors explode while winding. When in the catalog included with each of this stuff breaks, it shears across all of the Flyline’s many outstanding kits. The bands of rubber at once! Personally. I Flyette is an all-balsa fuselage and tail like the old Sig (reddish-brown cast) or model with built-up wings. There are no even the new Sig. There has been quite a die-cut parts, just the fine printwood bit written regarding the zap of the new typical of all Flyline models. Interesting Pirelli, so I won't comment any further, ly, the tw o sides are printed w ith one left it certainly doesn’t like heat! and one right. (Yes, I know that a One interesting item I came across in fuselage has a right and left side. Ffow- Aeromodeller magazine is a method to ever, the location of the structure is also quickly seal bare balsa. There have been printed on the sides so that the bulk many different ways mentioned in the heads can be easily located. Too often. Expert builder and flier Andy Faykun and his Stahl Interstate Novel method of cowl attachment on Faykun's Cadet, illustrated Cadet. Another Cadet at the meet rode a thermal for 18 minutes! above. Wires on cowl plug into eyelets on firewall. OCTOBER 1979 57 'Computor errors will never fully replace human stupidity.' • We're not sure what that has to do common thread that ran through many with model building, but found it food of their lives was enthusiasm for aircraft for thought anyhow! modeling. Who but one with that sort of Jim and Zona Appleby, of Antique Aero, Flabob Airport, near Riverside, CA, and NO IMAGINATION REQUIRED background could openly and proudly their latest homebuilt project, a Sopwith Pup When we were kids we used to pre state, as team leader Paul MacCready reproduction. Jim is a modeler and both are tend our bikes were aircraft as we rode did: “ One of the greatest charms of the licensed pilots. down the street .. . but now, bicycles program is that it is a great challenge . .. really are flying! Our congratulations to and fun . . . and yet it may have no to Motherat the weekend crying,'Mum, the entire crew of the Gossamer Alba practical application whatsoever.” Dad’s sitting down again!' Whereupon tross for the truly magnificent accom THE LOONY LICENSE SYNDROME Mother will wrathfully seek Dad out, plishment in crossing tne English Chan Model builders ARE an unusual lot, armed with the formidable weekend nel. Twenty-two miles across open sea is and most are not afraid to admit it. From work schedule. a long haul, even in a fast boat. But in an the delightful Aeromodeller magazine "The model flier is fortunate in being oversize microfilm model, it is almost a “ Topical Twists," for )une, 1979, we given a 'loony license’ o r‘idiot’s charter’ miracle! We feel privileged to have seen abstracted the following squib: "ONE to allow some exemption from the the machine and visited with some of THING ABOUT A HOBBY ... and this domestic job load. And, as the wife is the crew members, as was reported in very much applies to model flying ... is suitably consoled by friends and neigh our July “ Hangar.” Perhaps the most that it provides a much-needed weight bors. she listens ruefully to the splosh of satisfying aspect of the project was the ing against the Women’s Lib movement. the leaking tap and looks gloomily over importance of model builders to its In modern style living, the husband is the unkempt garden where the children success. This w ill be docum ented more often little more than a porter cum play Tarzan. What makes matters worse fully in a book about the subject, to be chauffeur cum maintenance contractor is that when she w rote to ‘A untie A gony’ authored by team biographer (and to the household. He is kept under con in the women’s magazine on her plight, model builder, natch) Dr. Morton Gros stant surveillance to ensure that he is she was merely congratulated on her ser. Mort is a thorough researcher and gainfully occupied at all times. The kids husband having a nice fulfilling hobby, had already collected a staggering are trained from an early age in the art of such a change from the usual wife amount of information on the back Dad manipulation; even the smallest of bashing." grounds of every team member. The the Dad monitors will be seen running Continued on page 99 Dapper Bill Warner with his Lee Richards "Annular," which he Tom Stark's latest project, an electric powered Northrop N9M for calls the "flying toilet seat." Fine electric flier. R/C. Flown only as a glider so far, looks promising. 58 R/C MODEL BUILDER All the stuff in the new Hoffelt Group Monoboom FAI kit. Offers One of the prettiest Noblers ever built. Finish is bright red and maximum prefabrication and ultimate performance. glistens everyplace you look. Built by Roger 8arrett. ontrol line By "DIRTY DAN" RUTHERFORD • When first starting to write for model can make it so they understand, every magazines, first doing the Combat thing is OK. And they seem to be able to column for American Aircraft Modeler understand, even if the copy looks just before they went away, then taking absolutely terrible, with words x’d out over this column for MB, I was never on almost every single line. sure that I would be doing much writing In the past, one of the things that held for very long. So I have always struggled me up a bit was going back a few spaces along w ith an old Smith Corona portable to obliterate mistakes. That is why the typer. One that requires considerable electric typer is so neat... backspace to effort to operate. A manual machine . . . the screwed-up word and hit that “ x” hit the keys as hard as you can and hope key and hold it down. It just keeps on fo r the best. automatically punching out x's. Never being too subtle about any Fascinating. thing I always pounded the devil out of What does all of this have to do with that old hummer. Ruined a couple of the C/L column?. Not much. But then rollers in it, broke keys with fair regu this column has never been strictly larity along with finally developing an devoted to just C /L m odeling, has it? (evidently) uncurable skip after a couple of letters. Talk about getting your A CRACK IN THE WALL money’s worth out of something, that As most of you should be aware, the old typer set new records even con controversy between the AMA and the sidering the abuse it received at these commercially published magazines goes hands. on. As does the controversy between It finally died, however. Now I am individual AMA members (or ex-mem using a brand-new, high zoot electric bers, as the case may be) and the AM A typer. I still can’t type that well, but now itself. can do it a lot faster. Especially the x’ing I have contributed to this controversy out of mistakes. You see, when doing myself, although I did try to set an Al Kelly prepares to short out the contact example for AMA and it's own maga- rings on his hot-glove set-up. When it happens this copy the only ones who see it are he w ill get his eyes wide open and his watch those editing and typesetting people. If I Continued on page 76 w ill change dates. An easy way to get into FAI Combat is to bolt a hot .15 onto a Team Race pilot Dave Clarkson kept getting held up in traffic just standard AMA Combat Nemesis. Engine mounts on adapter plate. from being too short. Elton John shoes help... or so says Dave. OCTOBER 1979 63 Carolyn Burks, Dallas, TX, flew this B&B Special in Class A at Fiesta Proud Pensacola CD, Tom McLaughlan. displays sample of trophies of 5 Flags contest in Pensacola, Florida. he made for this contest. by TOM HUTCHINSON PHOTOS BY AUTHOR • I started out this summer by attending size of the usual Taft 2-day Annual. 2 contests that were just about as widely Pensacola area fliers have 7 flying fields separated as you can get without leaving at their disposal, courtesy of the Navy. the United States. On June 10, I flew in The Navy had other plans fo r its best site the Boeing Hawks Spring Opener at (Spencer field, which is a mile square of Hart’s Lake Prairie, then the next week mowed grass), but Saufley field was a end found me nearly 3000 miles away at good substitute, being a semi-aban- the Fiesta of 5 Flags contest in Pensacola, doned Navy base w ith a main runway Florida. I’d heard some good things over a mile long. They only used 2-1/2 about this neat contest that Tom Mc minute maxes because the surrounding Laughlin puts on down there, and we area was wooded swamp, but this didn’t were going to be flying down to Louisi cut down the flying much. ana at that tim e lo visit my relatives I wasn’t the only long-distance trav anyway, so it wasn't too hard to arrange a eler there. Matt Gewain showed up slight detour to Pensacola. from Southern California, combining a business trip to Orlando with winning Arriving at the field made it abundant Nordic. A large contingent from Texas ly clear that free flight is alive and well in showed up, too: Bill and Carolyn Burks, the Southeast. The contestant turnout Casey Hornbeck, C.C. Johnson, Frank was hurt by the gas shortage in the Paramenter, and Mark Valerius. (They Birmingham area, but nearly 60 fliers took advantage of the fact that Houston entered, making this contest about the is closer to Pensacola than is Miami, which is probably why I scooped Dave Linstrum on this contest!) I ran into some folks I hadn’t seen in a long time, like George Batiuk, Doug Joyce, and Frank Wolff. And I also got a chance to meet some friendly Southern free flight ers whose faces w ill grace these pages George Batiuk launches his O.T. Rubber ship for the next few columns. (looks like a Korda) at Fiesta of 5 Flags meet. The flying at this contest was of a high Louis Joyner times. quality. It took 8 maxestowin Unlimited (oops, Mulvihill), with increasing maxes One of the persons I met at Pensacola on each flyoff flight. This was a popular was Bill Mathews, editor of the FFFliar event. To win most events took all newsletter out of Birmingham, from maxes, plus a good flyo ff string. I was which the following article by Louis particularly impressed by the overall Joyner (met him, too) is reprinted. “Compared to the usual stick-and- performance of the gas models. Most ships were well-trimmed, with good, tissue construction, all-sheet construc fast-climbing power patterns that tion offers a number of advantages: achieved impressive altitudes. Most quicker construction, puncture resis models were pylon types, with right/ tance, and warp resistance. The disad right patterns. vantages are higher cost, higher weight, I truly enjoyed the visit and the and the need for a building jig, especial hospitality displayed by everybody I ly for undercambered surfaces. Al met. If you get the chance to attend, this though the jig sounds like extra trouble, is a good contest on which to drop in. and it is, it is a must for b uilding an Hope I can make it back soon! undercambered built-up all-sheet wing. Harry Grogan hooks up A/2 under watchful M AKIN G THE JIG eye of Tom McLaughlan and Jim Bradley. SHEETED WING CONSTRUCTION "Begin by cutting a number of ‘jig ribs' 64 R/C MODEL BUILDER of 3/32 or 1/8 hard balsa to match the lower curvature of the airfoil you are using. Then glue these to a piece of 3/4- inch plywood that is about 1/4 inch wider than the chord of the wing you will be building. The plywood should be at least twice the length of the longer panels of a polyhedral wing. Next cover the plywood and jig ribs with 1/16 ply wood. Be sure to use a slow-drying glue (Titebond or epoxy) and plenty of rubber bands to hold the 1/16 ply in place. After the jig is dry, rub the plywood with paraffin. If your workshop is in a humid place, first give the entire jig a few coats of Deft ‘Clear Sealer.' " CUTTING THE WING RIBS "Make a rib template from aluminum or plywood. Remember to allow for the thickness of the top and bottom sheet ing. For a Wakefield size wing use 1/32 sheet. For FAI Power use 1/16 sheet. For A-2 use 1/32, 1/20, or soft 1/16 stock. Allow for leading edge, trailing edge (optional), and spars, if used. Since there are few (if any) spar notches, ribs are much quicker to cut out than for a conventional wing. For a Wakefield size w ing, I use 1/16 ribs spaced 20mm apart in the center panels, increasing to about 40mm at the extreme tip. At the dihedral break, ribs are 3/16 thick. Plywood ribs are used for the center 3 or 4 ribs on each inner panel to accommodate the alumi spar with 1/32 sheeting for his A-2. For the other area FAI Power fliers are using num tubes for a 2-piece wing. It is power, 1/16 x 1/2 spruce spars are often to stiffen up their sheeted wings even important that the rib template lower used. If you use spars set into the more. Tom is concerned with wing surface exactly match the curvature of sheeting, be sure that the spar in the top twisting during the high speeds achieved the jig. sheeting lines up with the spar in the during the power pattern, even with W ING SKINS low er sheeting. Sand before assembly. sheeted surfaces. This twist may not be “ Since the exact width sheet isseldom The 1/32 sheets (3 x 36 inches) I use for severe enough to initiate flutter, but an available, you will need to butt-join 2 Wakefield weigh about 5 grams for tips unequal twist (like the right wing wash sheets. Cut the sheets to approximate and 8 grams for center. Finished wing ing out in flight) can be the cause of length, Fhen trim one edge of each sheet weight is 70 grams. disaster. (Sometimes, there may be a to assure a good fit. Glue together with CONSTRUCTION silver lining. The model that Tom flew at Hot Stuff. For a wing subject to bending "Begin by gluing the leading edge to the 1973 World Champs had a tendency (A-2 or Power), you may wish to incor the lower sheet. M ark o ff the location of to wash out the left wing, which gave a porate a spar into the sheeting. Harry ribs and trim lower sheet to exact width perfect power pattern.) Since it is diffi Grogan uses a 1/32 plywood tapered and length. Tape the lower sheet in cult to select balsa to give a perfectly place on the form, glue ribs in place, and add vertical webbing. Sand ribs, leading edge, and rear edge of sheeting. Using Titebond or epoxy, glue the upper sheeting in place. Slip rubber bands over the whole jig to hold the sheeting in ψ Μ place. Space the rubber bands about 1/2 inch apart. Let dry overnight. Remove from jig, trim top sheet, sand, glue 2 panels together, dope with 2 coats of Deft 'clear sealer,’ cover with tissue, dope with more Deft and you have finished. WASH-IN AND WASH-OUT "Due to the stiff construction, warps must be b uilt in. For the tip washout on a tapered-tip wing, it works out about right if the leading edge is straight and the trailing edge tapers. The exact amount of washout can be determined by where the tip is placed on the jig. For ■!·· a swept-back tip, simply cock the whole tip on the jig so that the leading edge is straight.” ■ REINFORCED STEEL WINGS? Mark Valerius prepares to fire up his "fu ll While talking with Tom McLaughlin at house" Class D model. Special K8iB .45, Walt Rozelle's helper lights fuse before o ffi Pensacola, I learned about some of the cowled, auto-everything, slick lines... looks cial flight in Wakefield at Pensacola. construction techniques he and some of like a scaled-up FAI ship. OCTOBER 1979 65 66 R/C MODEL BUILDER Dan Berry, "the only free flighter in Mississippi," turns loose his "Foo-Too-U-2" .020 Replica at Pensacola meet. Plans published in Nov. '75 issue of MB. When he wants to release the model, he outside Mexico City, dry. but covered just keeps pulling on the line until the w ith grass. Bob won the contest they put “ V” is pulled through the ring. The force on for him (for combined FAI events), Harold Gauger shows off his 1/2A Maverick, from RM kit. Flew at Pensacola. necessary to accomplish this is adjusted but the air was tricky and he didn't max by spreading the arms of the "V ” in or out. out. Jim uses a 9-lb. “ unlatch” force. The Whites were really impressed by equal amount of twist in each wing And that’s all there is to the system. their hosts’ hospitality, even though Bob during flight, Tom has resorted to steel The ring attaches to a swinging arm, as in had scarcely a moment to call his own. reinforcing. He uses 3/4 mil (.0075 in.) the twanger system outlined a couple of since there was always someone picking thick steel sheeting on part of the top issues ago. As a matter of fact, this " V ” his brain, especially at the field. Their and bottom sheeting to form the outer latch could be substituted for the twang departure was a very emotional event, layers of a "D " box over the wing er spring, exactly as shown. This latch has but the trip was one they won’t ever sheeting. It’s essential that there be a a slight theoretical advantage over both forget, according to Toni. A couple of web underneath the front and back the Russian and twanger towhooks, weeks later, at the U.S. F/F Champs, the edges of the steel sheet, or the balsa since no slack is required to release the group from Mexico presented Bob with underneath thesteel will yieldorbuckle. line. a plaque from the Federacion in appre The resulting “ D” Box is stiff enough to BOB AND TONI WHITE IN M EXICO ciation. give an equal stiffness to both wing Toni White writes that she and Bob Instead of a model 3-view, this month halves. were recent guests of the Aeromodel- I thought it might be interesting toshare Doug Joyce uses the same idea to ling Federacion in Mexico City. They the drawing of Bob White’s winding stiffen his high aspect ratio canard were treated as royalty, according to stooge, which incorporates a torque surfaces. He makes up a balsa/carbon Toni, for the entire trip, which included meter. Several photos of the stooge have fiber/steel/glass cloth sandwich by a guest lecture at the University by Bob, appeared in various places, but this laying up each layer with epoxy in plus a practice session and contest at the drawing gives a good idea of the between, then laying drafting mylar local flying field. Toni says this field was a mechanical layout, if you’re thinking of over it and clamping with steel weights. fantastic flying site ... as good, if not building one. When dry, this sandwich is used as the better, than Taft or Wiener Neustadt. It’s MYSTERY MODEL OF THE MONTH wing skins, as described above. Doug an old dry lake bed about 40 minutes Now HERE’S a model w ith a distinctive uses the matte side of the drafting mylar against the sandwich, to provide a slightly rough, turbulated layer on the top surface. The steel skin is tapered from root to tip in width. Tom's latest models use basswood wing skins. He does this by re-sawing a basswood plank on a bandsaw to about 1/16 thickness, then runs it through a sander to come out with about 1/32 bass sheeting. JIM BRADLEY’S “V” TOWLINE LATCH I d id n 't get any photos of Jim Bradley’s unique circle towhook latch when I first saw it at Taft last Labor Day, but when I met him again at Pensacola I tried to rectify my error. He’s got an ingeniously simple method of insuring that the model is firmly attached to the line until release is desired. There's no hook on Jim’s model, just a large split ring about 3/4 inch in diam eter. His towline terminates in a V- shaped piece of .045 music wire soldered to a ball-bearing fishing swivel. To set up the latch, the "V ” is unclipped from the towline and inserted in the ring on the Jim Bradley uses this V-shaped wire latch on his circle towhook. Ingeniously simple, see details' model, then reclipped to the towline. in text. Note how tim er start and plunger line are connected by lever on side. OCTOBER 1979 67 look to it! V-dihedral tapered wings, that the American team should be able elliptical stab, profile fuselage (built-up) to parlay this strong home field ad Announcing... might lead you to think this is one of vantage into a clean sweep across the those "bitsa” models put together from board, right? At least that’s the way it In November, 1979, your dealer leftover odd parts, but this one came might seem at first glance. will unveil the all-new, high torque from a highly-respected, scientifically- A closer look might show that the SULLIVAN oriented designer with the objective of home field is not as much an advantage obtaining maximum clim b. It had a good as you might think. If you look at the 12-24 VOLT contest record and the climb was hot, results of previous World Champs, you STARTER since it weighed 9 oz. with a .15 engine. won’t find many individual winners If you can identify it, send in your guess from the host countries, particularly in Designed to start those big to the R/C Model Builder office to see if recent years. [And when it does happen, engines, such as Quadra. Best you win the free subscription. it’s more likely to be the power winner of all, it’s a Sullivan! Only $49.95. NFFS SYMPOSIUM OUT . . . Koster (Denmark 1977), Horcicka See it! "The 1979 Symposium is com plete and (Austria 1973), Hagel (Sweden 1971), off to the printers. It consists of the new Draper (England 1956), W heeley (USA ...AND NOW THERE’S A electees to the NFFS Flail of Fame, 10 1954).. . than any other class.) And team technical papers, the Top 10 Model winners don’t usually come from the FUELER WITH A TRUE Award winners, plus a new section host countries, either. It is difficult to FILTER SYSTEM, TOO listing all the past and present w innersof psyche yourself up for a contest in your the Mulvihill, Dick Black, Tulsa Clue own back yard, it seems. Dobbers, Wakefield. Chuck Broadhurst, Also, the field at Taft is not a very fair Stout, and McNeil Trophies. (It is one, in the sense that if you do every planned to keep this last section as a thing right, you’ll earn a max. It’s tricky permanent record in the succeeding to fly there, particularly in the middle of Sympo reports.) the day in the normal summer weather "The technical papers are broken pattern. Thermals die off in mid-flight, down as 4 theoretical and 6 very practi downdrafts appear out of nowhere, and cal ones. I think this is a much better mix strong lift can take away the best models than in past years. Samples are: An in- even when DT’d. The rounds schedule depth interview with Bob White in for the World Champs insures that there Get the double filtration perform which he reviews everything he has tried will be little chance of non-thermal for Wakefield and what he likes and conditions, even for the flyoff rounds, ance of the Sullivan Crap Trap what he has discarded; )im O’Reilly where champions are made, usually when you fuel up, too. Two different reviews the complete state-of-the-art in with the help of a little bit of luck at the sized filters keep those particles out Mulvihill and projects his design philos proper time. of your tank. Fueler comes complete ophy in a new model; Andy Bauer flies The more often you fly at Taft, the with 4 feet of Sulli-Cone tubing — Thomas Roster’s ‘Speed Cream’ FAI more you are aware of how tricky the not 3 feet of lesser quality tubing. Power model in a computer and plots field really is. Newcomers often do And tubing WON’T COLLAPSE out a 2-dimensional flight path for about better than old hands there, because when defueling. 15 flights ... a milestone contribution to they haven’t found out yet how treach O n ly $ 2 .5 0 free flight; Chris Matsuno has gone erous the conditions really can be. The through a complete method of testing newcomers to Taft this year are all the rubber so there w on't be any errors in best fliers in their home countries, so it GOLD-N- your torque-turns curve; Tom Hutchin shouldn’t take them long to find out son analyzes the 50-foot Nordic Zoom what a "Taft Trashmover” feels like. And PUSH RODS M yth. some of them will be lucky enough "O ther articles include the P-30, never to encounter a downdraft during Novice Power, Dieter Sieberman on their visit there. Indoor, and the frustrations of an adult What I’m trying to say is that it’s foolish beginner trying to build her first model. to expect an overwhelming victory from All of this makes the publication one our American team at this year’s World that should be attractive to all free Champs. They are all good fliers, and on flighters. any given day could be the World "Copies can be purchased from Fred Champs. But the winning of a free flight Terzian (NFFS Publications), 4858 contest on any given day is not merely M oorepark Ave., San Jose, CA 95129. that of having the proper skills; some (Price not exactly determ ined; $7.50 or times a bit of luck is necessary, too. I The p u s h $8.50 to NFFS members. Add $1 for non expect that they will be very competitive rods that beat members.)” From Bob Dodds, Editor. and give a good account of themselves the clog. Pat WHAT HOME FIELD ADVANTAGE? at the World Champs. I wouldn't be too ented splines on It would be easy to assume that, surprised at an individual or team victory inner rod cut right when the final scores are posted. But through that mess. because the World Champs will be held at Taft this year, the American team let’s not put too much pressure on the Temperature compen team by expecting improbable results, sated to prevent would have a decided advantage in the while still rooting for them. · elongation. Good as gold. competition. After all, they earned their Insist on Gold-N-Rod. places on the team on this very same Clevis not included. spot, most of them fly there regularly, Big S tik ...... Continued from page 23 and they won’t have to cope with the WARNING! To All Modelers: Do Not fly usual difficulties encountered when the landing gear design, anyway. near overhead power lines. traveling halfway across the world to We decided to use a 3/16 piano wire foreign countries. In addition, the main gear, mounted in maple blocks in com petition should be a bit less fo r the bottom of the fuselage. A 1/4-inch CUV midable than usual, since fewer nations plywood cover plate screwed to the ^PRODUCTS. INC. will enter and the strong East European bearers would hold the gear in place and P.0 8ox C. S35 Otvitvili* Rd . Willow Grov·. Ρ» 19090 teams will be staying away for political allow easy removal for storage and reasons. It’s perfectly obvious, then, that transportation. A 1/8 piano wire 68 R/C MODEL BUILDER .ControlLineControILmeControlLineControlLineControlUneControlLineControlLineO ontrolLineControlLii ontrolLineC ontrolLineC ontrolLineC ert o Contol ie n Care Flig ncudi efi i h flig re p g in d clu In lying F arrier C and n ctio Line stru n l co tro n o C design of g in d lu c Secrets In g □ in ild u B lane irp A feflodei f o cret· e S P aao o etr Ua r ipae ontol ie dl is scale C R kits odel m line l tro n co airplane or Una entire of Catalog O $26.95 n contol ie nttatn nstucton· 5 enclosed 25« · n tio c tru s in instettafton line l tro n o c and oeig i s ng hig dutn contol ytm ec ?$c hints g flyin etc arrier C systems l regulations tro n and o c rules rrier a C adjusting stunting. hying soloing g in ish fin enclosed covering n Tanr t, ot dl t, cesre ec SOC enclosed etc accessories it·, k odel m boat it·, k Trainer and cek Ony S ny res r urenc accepted cy n rre cu or orders oney m S U nty O checks o N aur 16,January 1943, operationalVF-9became the first n ter ios eto t poe ht hy were they that prove to on went pilots their and squadron Hellcats to The theHellcats. new receive production first model the F6F-3 Fighter,was completed Navy 1942 4, October U.S. famous and onA 6—HELLCAT F6F— con structe d on th e B oard. K it con tains D ie c u t Balsa Balsa t u c ie D tains con it K oard. B e th on d structe con engines riva ls th a t o f the N e w R ingm aster. Plans Plans aster. ingm R w e N the f o t version. a /C th R ls show riva engines Canopy, H a rd w a re Package, a u th e n tic D ecal Sheet, Sheet, Plastic ecal D tic lear n C e th d u e a rm o F Package, re a ing acuum w V W rd a H arts, P surfaces. il Canopy, od ta o lyw P sheet and solid ith w Fuselage file ro P aied Prs it Pef mane t o abl le b ra a p com ith w nce a rm erfo P List. Parts d ile ta e D aircraft shotaircraft down by alltypes Navy Aircraft of U.S. shot Aircraft down which is well over half the enemyis Hellcat officiallyThe credited5,155 with Japanese superbly suited to the role as baseda carrier Fighter. in ess s re d d A e m a N NG MOOELS · J2 G ST PHIA P 19134 PA ILA H P T S G J620 · S L E O O M G IN L R E T S WWII. hre o ha ln ad hpi (0 mii m i 25 i S S U in um inim m (60« g shippin ) S U and outside dling an h um inim m for charge fn elraalbe ietodr cetd nh 0«aditional add 10*« «nth - accepted orders direct available, dealer no If ______Engines: .19 to .35 to .19 Engines: lnas hw R/ Version /C R shows also Plan W ingspan: 42" ingspan: W ity C KIT: S46 KIT: ______tate S _____ ·p______Z· p . I i i I C v CnrlieotoLn nrlie nrlie nrlie nrlie ontrolLine ontrolLineC ontrolLineC ontrolLineC ontrolLineC C ControlLineControlLine and fitted, and 10-24 nylon bolt provi sions made ready. Plywood wing hold-down blocks were epoxied in place, and pine triangle support blocks added to increase the glue area. The wing was fitted to the saddle, and dowels added in the rear of the wing to support the rear wing bolts. Bolt holes were drilled and tapped for 1/4-20 nylon bolts in the rear, and C.B. long aluminum bolts with lockwashers in the front. An EWH quart metal gas can kit was assembled and fitted in its compartment. A hatch was cut from 1/8 plywood, and the compartment edges lined with 1/8 plywood strips so sheet-metal screws could be used to hold the cover in place. A C.B. Associates Quadra engine m ount was mounted to the firewall, and fuel line holes drilled to allow routing of Sonic-Tronics’ new gasoline transparent fuel line to the engine. By the tim e we reached these stages, more weekends and following weeks had flown by! I was beginning to think about what radio to install in my new Big Stik, and how many and which kind of servos to use. A call to Kraft Systems made up my mind, as they recom mended a combination which included their KPR-7L dual conversion receiver, KB-4F 1000 mah battery pack, and four KPS-15H heavy-duty servos. One of these heavy-duty servos on each control function would be adequate, but small Champion Mark III er servos would require doubling up. I bought the radio and began the installa Meet the plane that trained today's experts. Ask today's R/C experts what their idea of a great R/C ______SPECIFICATIONS tion by running elevator and rudder trainer is. Chances are they'll tell you Hal deBolt’s “Champ". Wing Span: 55 in. pushrods to the tail. I again used Sulli The Champ was first kitted by deBolt in 1954. Later he Wing Area: 595 sq. in. van’s SR pushrods and Hot Stuffed them re-engineered it as a quick build kit. And time proved the Engines: .15-19 Champ to be one of the all-time, best-ever R/C trainers. Radio: 1, 2 or 3 channel in suport blocks at every bulkhead Now, Midwest and deBolt. working as a team have made Ktl No.: 146 location. A piece of 3/16-inch K&S the “Champ" better than ever. With Midwest microcut quality throughout, and solid new So see your local hobby dealer about the new Champion tubing chucked in a drill made quick, deBolt engineering, the new Live Wire Champion Mark III is Mark III. Ask for the new kit of the plane that trained to neat exit holes out the rear fuselage ready ior you day's R/C experts. Designed for one, two or three channel operation, this Ask for the new Midwest Champ. sheeting, and I similarly Hot Stuffed the new kit in the Midwest line-up takes .15·· 19 engines. The nylon guide tube in place. I decided to 55-inch wing Champ can be built with tricycle or scale tail-dragger gear. use the landing gear support bulkheads This stand-off scale model kit comes complete with all Midwest Products Company as a box to house the battery, switch, and die-cut balsa and hardwood parts, preshaped rudder, ele 400 South Indiana Street vator. leading and trailing edge. The kit also includes a Hobart. Indiana 46342 receiver, and I felt it w ould be best to use hardware package, detailed construction prints, complete 219/942-1134 a separate steering servo coupled to the building, finishing and flying instructions and a full color decal sheet. rudder servo through a Y-harness. A fifth KPS-12 servo was installed for throttle and a DuBro flex-cable added for throttle control. At this point I realized I had just completed the radio installation without giving any thought to balance! Con spreader bar bent through a screw-eye marked on the sides. The rear fuselage venience had been the only considera in the center of the cover plate was bulkheads were notched in the approxi tion, and as I found out later, was the planned in to limit flexing. mate centers of each side so they w ould best way to install everything. Only 3 The nosegear by now was becoming a fit properly in their respective positions. ounces of lead were required in the tail, thorn in my side! I discussed the basic I then began assembly by installing the and that I put in with a built-up lite-ply idea of enlarging the Royal double-strut two wing-opening bulkheads squarely tailskid. gear with our club’s machinists, Ron between the fuselage sides. I added the The top sheeting was all added, Tibbetts and Wayne Craig. They each maple landing gear blocks and half sanded, and made ready to cover. The agreed to make one, so Mike and I kept bulkheads and let all dry well. I then aileron servo was installed, everything working on the structure. positioned the assembly right-side-up hinged to the point of epoxying them in My fuselage construction began with over the fuselage top view and added place, and the wing sanded. Monokote building two complete fuselage side the firewall and all remaining bulkheads. was used on the entire airframe, a red, assemblies. Balsa sheeting was spliced The top and bottom spruce stringers white, and black box-top color scheme and glued to make one-piece, full- were glued in place, and cross-grain used. A 25-foot dealer roil of red w orked length sides. The lite-ply doublers were bottom sheeting and the 1/4-inch ply out very well for the base color. cut and laminated, followed by adding wood gear cover-plate were added. Stab Again the landing gear came back to all side stringers and the landing gear bolt blocks were cut from 3/8 plywood, haunt me, so a main gear was bent, and splice seam ply doublers. Bulkheads and the vertical fin fitted and epoxied in wrapped, and soldered using Stay Brite were cut and built, and their locations the tail. The stab was carefully aligned silver solder and copper wire. We found 70 R/C MODEL BUILDER SOON TO BE RELEASED M.E.N. has spared no ex Specifications and pense in kitting this great Other Special Features airplane. Some of the many • Semi scale retracts will be avail TIK M.E.N. outstanding features in able separately · Float kit will be clude; M.E.N.s "Construc available separately · All parts and tion and Instruction” or components will be available quarter booklet. A complete parts separately · 20 minute assembly at flying site · Wing span: 96", list. Beautifully spun 131/4" Wing area: 2700 sq. in. · Fuselage dia. aluminum cowl. Spun length: 81” · 13%" spun alumi scale aluminum spinner. Eight num cowl · Estimated flying shaped and welded stain weight: 20 lbs. · Power required: any normal %" scale power sys Beechcraft less steel flying wires. Com tem · Building material: lite plete standard and special plywood, balsa, aluminum. hardware package for flying D17S wire and wing attachment. Internal control horn actua M.E.N.fiV A "Staggering kit" of that tion of all control surfaces. Model Engineering of Norwalk 54 Chestnut Hill · Norwalk. Connecticut 06851 all time great biplane the Fully pre-bent fixed wire Beechcraft D17S. Our phil landing gear. “ Tri-square osophy of design has been Loc” construction assures to provide the modeler with guaranteed positive align a complete kit containing ment of fuselage and wing the best of everything possi mounting components. Pre ble and still keep the price cise and accurate "Thru- reasonable. Builders will Cut” die cutting. Full size find that construction will be rolled plans showing all fun. Parts will fit precisely. construction. Scale 3 views. Construction methods will be quite similar to those Plus many more features used in full size home builts. too numerous to mention. Dealer and Distribution inquiries invited Price to be announced. Outstanding Aerobatic Performance With Engine-Off AUTOROTATlONm ' - ^ Truly outstanding in design and performance, the ^ COMMANDER by American is well on its way to becoming X » a n international star. You could pay more, but you can't buy a more responsive, rugged, dependable, versatile or competitive machine anywhere! From the smoothest hover Available at your Dealer or Direct to the m°st intricate aerobatic maneuver, including Engine- Dealer Inquiries Invited. off Autorotations, it does it all! ^ _ . NEW! Call our "Troubleshooter's HOTLINE" for technical help; a factory trained flyer will answer your call. A m e r i c a n ' 0 , 1 <7111837'7905· R C Helicopters.Inc. 23811 Via Fabricante · Suite 102 · Mission Viejo, California 92691 · (714) 837-2676 that a propane torch made this an easy behind the main spar. Batteries were docile. I knew I had a winner as far as job. Ron and Wayne each came up with freshly charged. Control surface hinges ground handling goes! nosegears. Wayne's was sim pler, using were all epoxied, all servo screws were I taxied downwind, turned into the easily obtainable materials. Ron’s, as tight, all surface deflections the proper wind, stopped, and took a couple of usual, was a work of art! Both were very directions. My mind kept running down deep breaths. I poured the coal to the durable, and Mike and I had no doubt the mental checklist of most often Quadra gradually as the monster ac they would work. I installed Ron’s in my missed items that time had not allowed celerated down the 225-foot runway. Big Stik, and installed both push and checking before! I had never before That huge prop was really pulling as I pull-style rods to the nosegear servo. finished an airplane in the wee hours of could have easily lifted off at the halfway The plan shows the best features of both the morning, then raced to the flying point! I kept her on the ground another of these gears. field the next day (Saturday) to fly before 50 feet and gently pulled back on the I installed a 3-1/2 inch wheel on the taking time to show the project off to stick. The Big Stik immediately rotated nosegear, and a pair of 4-inch wheels on friends! and jumped into the air. Power was very the mains. I bolted my Quadra in the We fueled the red, white, and black adequate to climb out at just about any mount, installed a new Rual Engineering Big Stik with a 16:1 mix of regular angle I wanted! I kept pulling the nose prop hub and spinner adapter, and put gasoline and McCulloch chainsaw oil. I up, and climbed straight out to probably on a 3-1/2 inch C.B. spinner and 18x6 cranked the prop over 4 turns while 200 feet before making my first turn. prop. Elevator throw was set at 1 inch up, choking the engine with my thumb, Never before had I had that kind of 1 inch down, rudder throw at 3 inches then flipped the prop and the Quadra power in a large model! All trims seemed each way, and aileron throw 3/4 inch up fired up. I collapsed my antenna, walked perfect! and 1/2 inch down. (These throws al the way around the airplane, checking I turned downwind, pushed the nose turned out to be very responsive, but the range, and found no problems. I down to come back down where I could not excessive for aerobatics, so consider suddenly realized I could not come up better see how she was flying, and tried a them maximums for your first flight.) All with any more excuses! Time had come roll, followed by another, and another, appeared ready at last after nearly two to fly the big bird, and all was ready! and another. She kept ro llin g w ith o u t months of work, so we ordered nice I pushed the nosegear out onto our any hesitation or loss of flying speed as I weather for the following day and went taxiway, advanced the throttle and the did about seven or eight rolls across the to bed early, for a change, at about 2 Big Stik rolled out onto the asphalt. I sky. I turned back into the wind and set a.m.! immediately noticed ground handling up for loops. I entered my first loop from Determination, anxiety and a bit of was a breeze as I taxied down our 4-foot level flight, pulled back on the stick and confidence probably described my taxiway with a 3-foot stance airplane! As the Big Stik did a spectacular large round mood the day of the first test flight. I I turned onto the runway, I noticed the loop with practically no correction. I co u ld n ’t wait to see w hether our design Big Stik would turn on a dime! I could ended the first and went immediately was going to w ork out the way I wanted, easily turn the big bird completely into a second, then a third. At the end of yet there remained uncertainty because around on 1/2 of our 25-foot wide three I flew on upwind and decided to the ony way to find out how a plane flies runway. I taxied the length of the try something else. Everything this far is to fly it! Weight was a relatively light 19 runway a couple of times, just to check seemed like a .60 powered Ugly Stik pounds dry, CC a "scale” 1/2 inch her out. Tracking seemed straight and except the speed, which appeared to be 72 R/C MODEL BUILDER Τ.Μ. Double the Thrust of Palem Pending Your. 60 Size Engine. The Boost Quarter Scalers Needed, But Could Never Find! FACTORY DIRECT UNIQUE ENGINE MOUNTING - Allows a full 360 BALANCED 4" DRIVEN degrees adjustment around center support tube, plus PULLEY - Injection formed, $ 8 9 .9 5 positioning capabil glass-filled and machinett for ities to locate the DURABLE 4Ά" NYLON dependable, vibrationyree Complete as shown cylinder head either FIREWALL MOUNT - 3 (including prop & spinner) closer or farther , Lightweight, glass filled and ____ from the center designed for thrust line axis support tube. Great adjustment from b'A-V/t", for locating engine and exhaust equipment beneath the cowl. WEIGHT REDUCTION BENEFITS - Complete Byro- Drive, including the prop and 3'/ ι " spinner, weights only 2‘A lbs. - ~- PRECISION BELT TIGHTENER - Offers CONRAD 11/8" ease o f adjustment for op BEARINGS - High carbon, timum performance. chrome steel ball bearings EXTRUDED ground to + .0000.0002 ALUMINUM tolerance. Originally ENGINE designed for smooth service MOUNTS - Drilled and up to 15,000 rpms. con lapped to fit specified tinuous duty. engine. Insures accurate line up. 20 X 8 MAPLE PROP AND 3'/i” SPINNER - Included PRECISION PULLEYS Designed with every drive. and perfectly matched for peak performance. Simply remove your SPECIAL BALL END engine’s prop back plate and replace DRIVER - (9/64) assures fast with Byro-Drive pulley. and easy Byro-Drive in stallation and adjustment. POL Y-FLEX Included with each drive. INDUSTRIAL BELTS l pr. factory matched. Proven Recent tests have shown the dependable and durable after Byro-Drive and a Schnuerle years of tool shop applications ported .60 (burning 15% nitro requiring up to 20.000 rpms. fuel) producing up to 20 lbs. of thrust with a 20 X 8 prop at TENSIOMETER - Included with 7,000 rpms. each Byro-Drive, the tensiometer will determine the exact recom mended belt tension for peak Order Byro-Drive model number for matching engine. performance and longevity. Model No. for Engine (nol included) M r K-10 .60 & .65 O.S. Max, front <& rear valve K K - 1 1 .61 & .65 Rossi, rear valve Thanks to Byro-Drive and its ingenious method of prop RF-12 .61 & .65 Rossi, front valve reduction, you can stop searching for that elusive method of W FR-14 .61 Speed Webra, front & rear valve powering your giant aircraft. And above are 13 good reasons TFR-13 X.60 Supertigrc, front valve, rear exhaust why. Forget about oversized and overweight gasoline and KF-15 .61 Kraft chainsaw engines with their abundance of vibration. Instead, HPFR-16 Silver Star or Gold Cup, front & rear valve place your trust with proven names like O.S. Max. Webra. Rossi OPSR-17 OPS .60 Speed, rear valve and others* for superior engine performance and dependability. Then look to Byro-Drive from Byron Originals for the finest in / Send me_ Byro-Drive(s) Model No.(s)_ _at S89.95 high performance prop reduction. You'll like what combining ea., plus S2.50 handling. (Iowa residents add 3^o Sales Tax.) two winners can do. N am e______ ’ Byro Drive models for other well-known engines available soon. V/SA* Address City .State _ -Z ip □ Visa # .Expires Master Charge # -Expires □ I have enclosed Chk. or Money Order for S ______□ Ship C.O.D. (85c additional per pkg.) Prices and specifications subject to change without notice. Send to Byron Originals. P.O. Box 279. Ida Grove. Iowa 51445 D U A L RANGE Expanded Scale V oltm eter FIELD SUPPORT BOX The only device which allows pilot to predict safe flight time A quality field support box at a reasonable price. available from receiver and transmitter Ni-Cads. IT'S A FACT! If you fly R/C, sooner or later you'll have a battery failure) There are • Ready to use - NOT A KIT just two ways to find that out: • Roto-cast polyethylene 1. CRASH YOUR AIRPLANE. 2. MEASURE THE POTENTIAL OF YOUR BATTERY BEFORE • Light weight and practically Y O U F L Y I indestructible There is no more accurate, easier to use, less expensive, more versatile • Attractive and easy to keep clean device available than the Craft-Air Dual Expanded Scale Voltmeter. • Holds any size can of fuel securely • Know how much safe flight • Removable 4x7x4 ditty well in top time is available before each • Has room for mounting power flig h t. panel, etc. • Know the voltage available to the receiver and transmitter. • Know the condition of the airborne battery. • Holds any size transmitter securely • Know the condition of the > Holds any starter in special starter transmitter battery. well • Plot a characteristic voltage vs time curve at simulated load. > Holds any motorcycle or Gel-Cell battery securely • Cycle the batteries to prevent memory. > Large 12!4x6%x2 drawer for props, • Detect shorted or weak cells before it's too late. 501 S24.95 • Use the meter on any 4-cell (4.8 volt) Ni-Cad battery. tools, etc. • Use the meter on any 8-cell (9.6 volt) Ni-Cad battery. > 10 minute instructions for optional aircraft cradle Built-in load simulates normal average flight battery load. 5 0 0 ____$29.95 1 YEAR GUARANTEE 20115 NORDHOFF STREET · CHATSWORTH, CALIFORNIA 91311 PHONE (213) 998-3700 in the 60 mph range. just a little and she started gliding down. to date. I have let over 20 other fliers fly I decided I would try a snap-roll to see There seemed to be very little drag her, and no one has found any bad whether the Big Stik had all the charac compared to all the other large models I characteristics. A couple have com teristics of its ,60-powered sister. I pulled had seen fly. Normally, when power is mented that they feel a straight wing the nose up slightly, pulled off throttle reduced to idle, these big birds glide version might be even more aerobatic, and banged in full rudder, ailerons, and about 50 feet, flare, and stall unless the but I’ll let those of you who try her find elevator, and the Big Stik im m ediately pilot is quick enough to push the nose this out, as I’m happy with the way she did a majestic snap-roll! I was ecstatic! I down. I don’t like having to shove that goes now. I feel that she would make an had to spin her! I pulled the nose up, stick forward for landings, so I usually ideal trainer with all controls slowed chopped throttle to about 1/4, locked in keep just enough throttleon to maintain down. She is very predictable in any the snap-roll command and shesnapped forward speed and control my sink rate. weather condition, and flies well with and fell into a perfect spin. Her tail But the Big Stik had none o f this ten out any rudder coordination whatsoever. stayed high, rotations were tight yet dency as she gently glided down. I was Anyone who can fly any advanced sm ooth, and I spun her dow n about 4 or happy to see this, as dead-stick landings trainer can easily move up to this bird 5 turns. I released the sticks and she with many big birds become a real and have success. She is very relaxing to immediately stopped rotating and fell handful! I gently banked into final and fly even while doing the wildest aero out into a shallow dive. I hauled up added only slight power just to be safe. I batics you can dream up, yet so maneu elevator and was so excited I could flared at the end of the runway about a verable there is always another to try, so hardly stand myself! foot off the surface, and gently set her I don’t get tired of her. I decided I had to see whether she down on the mains in front o f me. As any I highly recommend her to any of you. would outside loop. I already knew the of you Ugly Stik fliers know, the airplane I hope you don’t cut any corners on answer because everything this far had a can easily be flared on landings to such design to save weight, as you’ll need all feeling of flying an Ugly Stik in slightly an extent the tail skid becomes very the strength that is built in to handle the slow motion! I set up, rolled her on her necessary and functional! The Big Stik G-loads possible with the Quadra. back, and noticed immediately that it had the same tendency, touching the tail Mount the wing hold-down blocks took almost no down elevator to main down first just before the mains touched securely, as you’ll see on the first flight tain level flight. I pushed forward on the down. Rollout was straight with the that what I’m telling you is true! nosegear remaining well off the pave stick and she did a mirror image of the I hope you have the fun Mike and I ment until I released up elevator. inside loops she had done earlier! After have with ours. He has just got his in the 3 outsides I knew I could do any maneu The first flight had been a success, air and it flies just like mine. It’s his first ver I wanted (except point-rolls, as any actually better than I had ever dreamed monster, and he is learning to fly in of you Ugly Stik fliers know are tough possible! The Quadra and Big Stik verted for the first time, and is doing with a shoulder-wing). seemed to match one another perfectly, maneuvers he was afraid to before. Start I decided I should probably land and and the combination is more fun to fly out using an 18x6 prop if a Quadra is check out all the screws and bolts, so I than any model I have ever owned. I used, and when you get comfortable pulled back on the throttle and set up a sport fly this model now, and have move up to a 16x10 Zinger. Brace your descent. The nose immediately dropped accumulated over 8 hours of flying time self, as you will see a marked improve- 74 R/C MODEL BUILDER New Cox Cub , -beginner’sbreakthrough the R/C simplicity and price. Ready to fly with .020 engine installed and radio included. \ New Aquila Grande — larger, improved ver sion of world champion R/C sailplane. Features sem i-sym m etrical airfoil 123-inch wingspan. Cox is*t in Tradew inds How you move up should be up to — for 36-600 class you. competition or sport That’s why Cox makes a full line of sailing. Ready to sail with pre-painted radio control planes, boats, and cars. Plus hull and optional engines, R/C systems and accessory kits sail winch. and fuel from beginning level to advanced. New R/C Bee .049 Only Cox has it all. So you can refine — first '/2-A engine for special needs your flying skills,ortry your hand at sailing of R/C fliers, with proportional throttle or road racing. and factory installed muffler. Whatever way you move up, you’re going to enjoy modeling more. You can always count on Cox performance and quality.^ in Power Modeling. COX HOBBIES , INC Pee W ee . 0 2 0 ; I a subsidiary of Leisure Dynamics, Inc.. — perfect reed valve engine for begin 1505 East Warner Ave.. ----- X Santa Ana,CA 9 2 7 0 2 ners and sport fliers; metal fuel tank, Check the yellow pages for your nearest hobby store. built-in radial mounting, standard or throttled version. Cox/Sanwa 8068 Í2 0 X f f A t V I BMW 3.5 CSL — six channel competition -electric race car with speeds up radio with low-force open to 30 mph plus acceleration and gimbal sticks, dual-rate Cox/Sanwa 8020 handling to match; fully assembled feature, unique ball bearing -versatile two channel system for chassis and drive train, servos, much more. planes, cars,and boats; outstand ing value makes it nation's best selling radio— the ideal first system . time, does not nestle nicely with policy and positions put forth in official AMA publications. HOT OFF THE PRESS!! The story goes that we members are the AMA. Or that the AMA is the members. Sounds good and is to be NEW FIFTH EDITION taken for granted, especially by people raised in a democracy. Why then doesn’t AMA and M o d el Radio Control A v ia tio n recognize these dissident voices? When I look in a mirror, I expect to see Dirty Dan looking right back at Buyers Guide me. When I read the AMA news or whatever it is called I do not see a cross- The Radio Control sectional look at the AMA membership. Through all of this the only side that I Buyers Guide is the have taken is my own. I’ve gone over the authoritative guide to deal about AMA's magazine, not to help radio control products. It the magazines such as R/C Model is the master catalog of Builder, but because I feel m y A M A , me the industry with more in other words, is wrong in approaching than 2,300 products pic communications with members with tured, described, & pric such a vehicle. ed. If AMA had from the beginning dealt with the controversy in an open fashion, The new edition has I could have a lot more respect for the more than 200 pages leaders of AMA. It is an AMA problem, showing the products of so why not work with it via AMA chan more than 250 manufac nels? As it stands now, if it weren’t for turers. the commercial magazines publishing Included are the latest "the other side,” all of you other-siders model cars, boats, air would think you were the only ones objecting and were obviously in a very craft, radio systems, small minority . . . so small as to not even tools, books and ac rate a line or two in AMA published cessories. The Radio material. Control Buyers Guide Again I feel obliged to show that I’m is indexed and cross- not blowing smoke, but prepared to put indexed for easy use. my money where my mouth is. About a This comprehensive year and a half ago Don McKay, Jim Sunday, and myself decided to publish a catalog of the RC in magazine about R/C cars. As it stands dustry is a must for every now, I edit the magazine (Race Car serious modeler! W orld) and Jim publishes it, along with Price: $7.75 R/C Sportsman, with Don going back to the business of producing Jerobee cars. Please send me . copies of the new 5th edition of the But one of D on’s ideas, in the beginning, Radio Control Buyers Guide. (Enclosed is $8.25 for each copy ordered was to align Race Car World w ith ROAR At Better — $7.25 retail plus $1.00 postage & handling). (the sanctioning body for R/C car racers Hobby . .. kinda like the AMA only smaller) by N a m e : publishing the ROAR newsletter in our Shops magazine. Basic arrangements w ould or Direct have been much like AMA used to have S tre e t: w ith American Aircraft Modeler magazine. C ity , S ta te , Z IP : ______With the publishing of any new maga Return to: RC Buyers Guide, Clifton House. Clifton, VA 22024 zine being such a risky undertaking, this scheme would have been to great ad ment in performance, and speeds of 80 question, usually leaving the reader with vantage for us, guaranteeing instant mph will be reached without sacrificing the illusion that either all of us AMA folk circulation, considerably raising our any vertical performance. If anything, are truly good ol' boys and everything is chances of success. And success or that’s improved too! just coming along superbly, or that failure here means dollars, not just a pie- Have fun, remember safety first and somebody has seen fit to tell only part of in-the-sky idealistic statement of some carry gasoline only in approved con the story, the part they like the best or kind. tainers and we’ll look forward to meet that will do them the most good. Even so, I decided that it was best for ing you one of these days at a Big Stik fun As a co n trib u to r to this magazine, an R/C car racing if ROAR continued to fly! · involved hobbyist participating in publish a small newsletter on its own and several quite varied hobby activities that our magazine w ould have to make it other than C/L modeling, an adver by other means. We had enough in C/L...... Continued from page 63 tising rep talking to a number of dif fluence with a few key people in ROAR zine, Model Aviation, by not only giving ferent hobby manufacturers each to pull it off, too. It would not have made my side of things but John Worth's as m onth, and also a sales rep calling on any difference if the general member well. retail hobby stores, I must come into ship objected, especially after we had One of the things that has always contact with more modelers in a week gotten control of the ROAR portion of bothered me about the AMA is that all than most people do in a year. What I the magazine and the support of leaders widely published and distributed mate hear from these people, many of whom in ROAR. Still I decided to just let the rial seems to present only one side of the are AMA members or used to be at one idea die still-born, as that was the right 76 R/C MODEL BUILDER Choose the way you train with lop Ffite's o c c k ? 4 C Low Wing R/C Trainer THE BUILDER'S CHOICE Bent wing or straight along with its fantastic pattern handling make the wing, Top Flite’s all new Contender 40 is a pilot’s Contender the real workhorse of our aerial dream. Kit includes hardware package, many demonstration. I heartily recommend this great die-cut and precision machined parts plus easy Top Flite kit to anyone who wants to experience to read plans for minimum building time and the ultimate in performance and stability all in maximum flying enjoyment. Listen to how Al one easy to build package." Betkey of Col. Betkey's Flying Circus describes this .40 size, low wing trainer. “Top Flite’s Con tender 40 is the star performer of our Flying Cir cus. Virtually stall proof, its short field capability U S. AIR FORCE Actual photo of model built fro Internationally acclaimed Colonel kit using straight wing option. Betkey and his Flying Circus. Actual photo of model built from kit using bent wing option. Length ...... 43%" Wing Span ... 47" * Wing Area .... 500 sq Engine S iz e .. . .40 App. Weight .. 4>/2 lbs Kit No...... RC-22 List Price $49.95 - m Top Flite M o d e ls ·· 1901 N. NarraganHj nue Chicago. Illinois 6063 For a 12-page catal pie and prop chart, send request plus 50 cents to Top Fwte ΙΙΤΕΙ STATES, IN A HORE DEALER INQUIRIES INVITED ZAP REVOLUTIONARY SUPER GLUE SUPER STRONG . . . SUPER FAST. . . SUPER CLEAN AND EASY TO USE! The precision adhesive for • Modelers · RC Automobiles • RC Aircraft · Miniatures Campbell, California 95008 • RC Boats · Hobbies (408) 379-9701 Get revolutionary SUPER ZAP at y o u r hobby d e a le rs . thing to do even if it did end up costing mold of tradition is Horace Cain, head of Mary, of all places, while there. Added me a bunch of money. AMA District VI. Several months ago in was the fact that some of them were You just keep that in mind when Horace copied me in on some interest staying over an additional week to take reading my complaints about the AMA ing memos and letters exchanged be in the International Modeler Show the and its chosen vehicle for communi tween himself and other AMA officers. following weekend. I can’t recall the cating with itself ... if indeed you can Talk about your basic rabble-rouser!!! figure I came up with, but it was shock refer to what is published as “com And hard-core to boot, as evidenced by ing .. . especially when weighed against munication.” the letter from Model Aviation's editor what has actually accomplished by the Hmmmm.got way off the track. To get asking Horace to change what he had Council. I went to the “open” AMA back to a subject having som ething to do written for his District Report column. meeting, and it turned out to be a with the heading "A Crack In The Wall," Horace flat refused, no way was his text question-and-answer session. A couple you are probably aware that for many to be altered, even if embarrassing to the months later I read the minutes of the years AMA leadership has presented editor. Cheers for having conviction to regular Council meeting and certainly pretty much of a solid front. Talking to put something to paper and then to stick could not see anything accomplished one V.P. was about the same as talking to with it. Damn the torpedoes and all of that was worth thousands and thousands another. There were no rabble-rousers. that. . . . of dollars or that could not have been That situation seems to have changed At this writing, Horace's most recent settled with conference telephone calls, ... a lot. A couple of months ago Earl column is in the AMA News section of letters and so on. Witt, AMA President, called me to the August 79 Model Aviation maga Granted, AMA leadership must sit discuss a couple of things I had written zine, and I urge you to get a copy of that down face-to-face once in awhile to get about the ΑΜΑ. I won't embarrass issue and to thoroughly digest what things ironed out, but.one or two myself or Earl by quoting him, as it was Horace has to say. meetings in the face of a trade show a phone call, so I would have to go by Horace “ stole” a bit of material from atmosphere, where most of the time memory on what he said. What I can say me in writing about the questionable spent by our elected and appointed is that he did not have any serious AMA policy of flying a bunch of AMA officials is devoted to patting old friends objections to the things I have written officials to trade shows for the pur on the back, hardly seems to me to be an and wholeheartedly agreed with a ported purpose of having an Executive efficient use of either AMA money or couple of points. Earl seems to be quite Council Meeting. I can still recall attend the voluntarily given time of the Execu concerned about certain AMA policies ing the MAC show in Long Beach back in tive Council. and is working tochange them. No more 78. Our group, representing a manufac Might be a good idea for some of you automatic rubber stamp of approval, for turer, stayed on the Queen Mary and ate concerned individuals to write directly one thing. It might lake awhile for you most of our meals there. So I have a very to both Earl Witt and Horace Cain. If and I to see any significant changes, but good idea of what it costs to “ go in style” they can see that have support, they will such is the way of things political and while in Long Beach. continue to go against the flow. Just be bureaucratic. I'm just pleased that Back home I calculated the costs to sure to write d ire c t to them, their possibly we will see the AMA go a AMA (you and I. remember) to fly a addresses are easily found in the AMA different direction. bunch of people to Long Beach and then News. A copy of your letter should goto Another AMA officer breaking the to house and feed them on the Queen AMA Headquarters, another direct to 78 R/C MODEL BUILDER 22 easy ways to build museum-quality wood ship models. Our 51 st year The famous ship model fleet and pedestals, and easy-to- from Scientific is designed to follow, step-by-step instructions. make assembly easy. All feature pre-carved wood hulls and Send for complete color catalog 500 decking, hardwood masts and yards, precision cast metal At your hobby dealer or order fittings, rigging cordage, antique direct adding $1.50 post. & handl. cloth sails, wood display stand (N.J. residents add 5% tax) from: Quality Hobby Kits Since 1928 SCIENTIFIC MODELS INC. Kit 165, Sovereign of the Kit 166, USS Kearsarge 340 SY Snyder Avenue, Berkeley Heights, N.J. 07922 Seas Clipper, 24", $32.95 Gunboat, 27" $37.95 Kit 163, Cutty Sark Kit 164, Bluenose Kit 167, Flying Cloud Kit 168, Eagle, USCG Kit 169, HMS Bounty, Clipper, 23",$32.95 Schooner, 24", $32.95 Clipper, 14", $16.95 Ship, 13” , $16.95 14", $16.95 Kit 170, USS Kit 171, Sea Witch Kit 172, Baltimore Clipper Kit 174, Cutty Sark Kit 177, Golden Hind, Constitution, 15” , $16.95 Clipper, 28", $32.95 Pirate Brig, 23” , $32.95 Clipper, 15", $16.95 20",$32.95 Kit 178, America Kit 181, Robert E. Lee Kit 182, Thermopylae Kit 183, Charles W. Kit 184, Spanish Galleon, Schooner Yacht, 17", Steamboat, 25", $44.95 Clipper, 31", $64.95 Morgan Whaler, 18", 20",$3795 $21.95 $32.95 Kit 185, Man'O War, 17” , Kit 186, Cutty Sark Kit 187, USS Kit 300, USS Kit 301, Santa Maria $32.95 Clipper, 12". $10.95 Constitution, 12", $10.95 Constitution, 28", $54.95 Flagship, 20", $21.95 1979-1980 TOWER HOBBIES RADIO CONTROL CATALOG Absolutely the finest catalog ^ available in RC 358 illustrated pages (TOWER HOBBIES Θ ' P.o BOX 77* CMAMPAICM. It UNO·* HWO ■00*177*** $00m xxm it? 3B* io»o Super discounted prices 1979 1980 R/C CATALOG $2.50 Φ Over 150 manufacturers to choose from Complete information Φ Section introductions to answer your modeling questions THE GUIDE TO ALL YOUR MODELING NEEDS! Introducing the catalog you've been waiting for - the NEW mat. This chart enables you to determine what accessories you 1979-1980 Tower Hobbies RC Catalog! This is the largest and will need to complete the kits listed in this catalog. most complete RC catalog ever published, by far! This new cat Other outstanding features o f this catalog are the special sec alog is much more than just a list of available products at super tion introductions that appear throughout. These introductions low prices. It's actually a complete modeler's reference guide, were written specifically to add to the general knowledge of featuring two indexes (manufacturer and product indexes) to someone new to the RC hobby. Even if you've been a Tower make finding a needed item fast and easy. customer fo r years, we hope these introductions w ill answer We developed the actual descriptions from a modeler's point some of your questions, provide you with helpful hints, and of view! We know from experience the questions you need an entertain you! swered in order to make that important buying decision. If after Remember, this 358 page Tower Hobbies RC Catalog was reading the descriptions, you still aren't sure of something, you developed for you, the modeler, and contains everything you'll can use the TOWER ACTION POST CARDS supplied inside the need to enjoy your hobby to its fullest! This Radio Control catalog to write directly to the manufacturer for more informa "Bible of the industry" will be included free of charge with tion. This is just another customer-oriented service you've come your first merchandise order from Tower Hobbies. Or, it's to expect from Tower! We've also included a revised and up available by itself for $2.50 postpaid. ORDER TODAY! dated accessory completion guide in an easy to use chart for TOWER HOBBIES P.O. BOX 778 CHAMPAIGN, ILLINOIS 61820 217-384-1010 CALL TOLL FREE: ILLINOIS TOLL FREE: 800-637-7686 800-252-3336 P.O.BOX 778 CHAMPAIGN, ILLINOIS 61820 217-384- 1010 CALL TOLL FREE: ILLINOIS TOLL FREE: a « W800-637-7686 800-252-3336 THESE SPECIALS ARE GOOD UNTIL THE 15th OF THE MONTH OF THIS ISSUE, ONLY. ALL SPECIAL PRICES ARE SUBJECT TO CHANGE IF RETAIL PRICES CHANGE DURING SALE PERIOD. MILLER No.2017 QUADRA 2 CU. IN. 29% TOP FLITE 30% DREMEL OFF SPRAYJ5I ENGINE OFF SEALING IRON MODEL 381 MOTO-TOO WITH FULL x ACCESSOR IE This sealing iron is great for covering with Monokote, Solar- The Model 381 is the ultimate in Develops 2 horsepower! An engine |J film, etc. It features adjustable Complete set includes a precision hand grinders. It features variable built genuine piston type air com suitable for large models with its [I temperature, teflon shoe, and a speed control, ball bearings, and pressor, 12 ft. air hose, 16G siphon scale-like sound and realistic per [’ handy shape. Excellent quality. fu ll accessories. type spray gun & 14G air brush both formance. Comes with muffler, j | RETAIL NOW ONLY$13.98 RETAIL NOW ONLY$46.98 with open & fine spray nozzles. mount, and Tillitson pump/carb. $19.95 MBM313 $74.95 M8M153 RETAIL NOW ONLY $48.98 RETAIL NOW ONLY $99.98 $81.95 MBM228 $139.95 MBM260 GOLDBERG 40% K&B .40 RC ENGINE 40% DEVCON 36% OFF DREMEL 572 FALCON 56 MK II OFF No. 8011 OFF 5 MINUTE MOTO Í EPOXY IN TH E M O ST ECONOMY POPULAR RC ENGINE EVER 9 OZ. SIZE MADEII Now in squeeze This all time best seller is now re Features a unique design for high [| bottles for your This deluxe saw features a complete designed with ailerons. 56" span. power; and a Perry carburetor accessory set of blades, discs, etc. convenience. Lim it Uses a .3 0 -.40 engine, ail balsa fo r e xce lle nt th ro ttle response and |jj of 3 per order. and flexible shaft. construction. An excellent trainer. easy adjustment - from a slov. j RETAIL NOW ONLY $3.98 RETAIL NOW ONLY $62.98 RETAIL NOW ONLY $28.78 smooth idle to a roaring top speed. (I $6.25 MBM151 $99.95 MBM154 $47.98 MBM020 RETAIL NOW ONLY $43.48 $72.50 MBM200 SULLIVAN ELECTRIC BOLINK POWER PACER 22% GOLDBERG 40% STARTERS ELECTRIC CAR BATTERY OFF SKYLARK 56 OFF TESTER MK II «■itr- Hi - torque, hi - rpm 12 v. starters. A new ni-cad battery tester, These heavy duty, long life starters This 2 ch. 1/12 scale electric car Fun to fly sport airplane with pat develop more torque and rpm 's than comes already assembled with .05 cycler, and charger. Works great! tern capabilities. 56" span. .30 to any other starters! m otor, nicads, & charger. Goes over RETAIL NOW ONLY $24.98 25 miles per hourl RETAIL NOW ONLY$46.98 .40 size engine, all balsa constuc- $38.95 MBM305 RETAIL NOW ONLY $79.98 $59.95 tion. New improved design I Dlx. model has V-groove In drive $99.95 M3M118 cone for starter belt. Starts copters, Bolink kit for above car · must M B M 2 59 9 .6 v o lt RETAIL NOW ONLY $29.98 airplanes, boats, and cars. be assembled. BLX-155. MBM024 6 volt $49.95 MBM181 RETAIL NOW ONLY$27.28 RETAIL NOW ONLY $59.98 $41.95 MBM306 $7 9.95______M B M 117 CRAFT-AIR 33% CRAFT-AIR 34% CRAFT-AIR 30% S&O BATTERY 33% DRIFTER II OFF TESTER OFF FIELD BOX OFF HI - START OFF HEAVY DUTY Features reel, tubing, towline, V- parachute, stake, . « H f tow ring, and 3 > 0 SATTcmr t c s t c r strong construct It's ready to use. not a kit, made ion. For sailplanes of 100" wingspan of lightweight indestructible pol Would you believe? A competition Tests 8 cell transmitter and 4 cell re I and larger. yethelene. 22" long & holds sailplane for only $13.98! It isn’t ceiver nicad packs under load. Ex everything. A SUPER BUY! just a trainer, it's a contest winner! tremely accurate scales. Detects bar: J RETAIL NOW ONLY $19.98 RETAIL NOW ONLY $32.98 71 V i" span. Uses a 2 channel radio. cells and/or abnormal current drain j RETAIL NOW ONLY $13.98 RETAIL NOW ONLY $19.98 $29.95 MBM148 $4 9 .9 5 M B M 141 $19.95 MBM142 $29.95 MBM27V ^ \ \ w r DV^A II ο CHAMPAIGN, ILLINOIS 61820 THESE SPECIALS ARE GOOD UNTIL THE 15th OF THE MONTH OF THIS ISSUE, ONLY. ALL SPECIAL PRICES ARE SUBJECT TO CHANGE IF RETAIL PRICES CHANGE DURING SALE PERIOD. HOW TO ORDER HOW TO ORDER HOW TO ORDER HOW TO ORDER HOW TO ORDER BY MAILORDER BY TOLL FREE PHONES If you have a Tower order form, please use it. If not, then just use any When you place your order over the phone we w ill ship it to you C.O.D., and you pay for it when it's delivered to your door. When you phone in piece of paper or stationery. Write down all of the items that you want your order, please have the stock numbers written down ready to give to along with their special stock numbers and prices. Total them up (Illinois the order taker. residents add 5% sales tax) and add $2.50 for postage, handling, and full insurance, to obtain the grand total. Obtain a money order, certified check, Continental United States: Illinois Residents Only: bank check, or write a personal check for the grand total amount (personal checks may be delayed to allow for clearance). Foreign orders add $10.00 800 - 637 - 7686 800 - 252 - 3336 (excess will be refunded with order). Date of postmark determines special The "800" WATS lines are open weekdays from 9:00 A.M. to 5:00 P.M., period eligibility. Send your order along with full payment to: TOWER Monday through Thursday evenings 5:00 P.M. to 9:00 P.M., and 10:00 A. HOBBIES, P.O. BOX 778, CHAMPAIGN, ILLINOIS 61820. M. to 5:00 P.M. on Saturdays. Closed Friday evenings and Sunday. S T O C K NOW STOCK NOW NUMBER DESCRIPTION RETAIL ONLY NUMBER DESCRIPTION RETAIL ONLY M B M 4 1 7 A i r C a p ita l R T F F B - 1 0 0 ...... $ 1 3 9 .9 5 $ 1 2 9 .9 8 M B M 1 71 F o x .3 6 R C ...... $ 3 9 .9 5 $ 2 5 .9 8 M B M 1 0 5 A ir t r o n ic s A q u i l a ...... 7 4 .9 5 5 2 .4 8 M B M 1 77 F o x 1 .2 C u b ic In c h T w i n ...... 2 5 0 .0 0 1 8 4 .9 8 MBM106 Airtronics Olympic II ...... 4 9 .9 5 3 4 .9 8 M B M 1 7 5 F o x .6 0 R C E a g le ...... 6 9 .9 5 4 1 .9 8 MBM107 A-Justo-Jig Wing & Fuse Jig ...... 5 9 .9 5 4 1 .9 8 M B M 1 7 2 Fox .40 RC Schneurle ...... 4 5 . 9 5 2 8 .4 8 MBM395 Andrews Aeromaster T oo ...... 8 4 .S 5 5 1 .9 8 M B M 1 7 4 Fox .45 RC Schneurle B B ...... 6 4 .9 5 3 9 .9 8 Μ BM 112 Associated RC-200 Car K it ...... 1 9 5 .0 0 1 1 9 .9 8 M B M 3 9 2 Goldberg Falcon 56 MK II ...... 4 7 . 9 5 2 8 .7 8 MBM411 Associated RC-300 Car K it- NEWII . 1 9 0 .0 0 1 2 9 .9 8 M B M 1 8 1 G o ld b e rg S k y la r k 5 6 M K I I ...... 4 9 . 9 5 2 9 .9 8 MBM113 Associated 6-Cell Car Kit No.3012 . . 1 0 2 .0 0 6 9 .9 8 M B M 1 8 2 G o ld b e r g S k y la n e 6 2 ...... 6 4 .9 5 3 8 .9 8 MBM412 Associated 6-Cell Car-Asmb. No.3024 1 1 9 .5 0 8 2 .9 8 M B M 1 8 3 Goldberg Senior F alcon ...... 6 4 .9 5 3 8 .9 8 MBM114 Badger 200-1 Air Brush K it ...... 3 2 .9 5 2 1 .3 8 M B M 1 8 4 G o ld b e r g H a n d i- T o t e ...... 1 6 .9 5 1 1 .8 8 MBM115 Badger 200-3 Deluxe K it ...... 4 2 . 9 5 2 7 .8 8 M B M 4 0 3 G o ld b e r g P 6 E C u r tis s H a w k B ip e . . . 4 4 . 9 5 2 9 .9 8 MBM116 Badger 180-1 Compressor ...... 8 5 . 0 0 5 9 .4 8 M B M 1 8 5 H B .1 2 R C B B w / M u f f l e r ...... 3 9 .8 7 2 7 .8 8 MBM117 Bolink 6-Cell Car K it ...... 7 9 .9 5 5 9 .9 8 M B M 1 8 6 HB .15 RC BB w /M u ffle r ...... 4 3 . 2 3 3 1 .9 8 M 8 M 1 1 8 B o lin k 6 - C e ll E le c t r ic C a r K i t ...... 9 9 . 9 5 7 9 .9 8 M B M 1 8 7 HB .25 RC BB w /M u ffle r ...... 5 6 . 0 0 4 0 .8 8 M B M 3 9 6 B r id i D e c e p t io n ...... 8 9 . 9 5 6 1 .1 8 M B M 1 8 8 H B .4 0 R C B B ...... 6 9 .4 4 4 9 . 9 8 M B M 1 2 1 B r id i S u n F li 4 - 2 0 ...... 2 9 .9 5 2 0 .3 8 M 8 M 4 0 4 HB .40 RC BB PDP M arine ...... 9 3 . 5 0 6 6 .9 8 MBM123 Bridi RCM Trainer 4 0 ...... 5 4 .9 5 3 7 .3 8 M B M 1 8 9 H B .5 0 R C B B ...... 7 6 .2 7 5 4 .9 8 MBM 125 Bridi Dirty Birdi 40 - w ood ...... 5 9 .9 5 4 0 .7 8 M B M 1 9 0 HB .40 RC BB POP ...... 8 4 . 3 4 6 1 .9 8 1 1 9 .2 6 MBM 126 Bridi RCM Trainer 6 0 ...... 6 2 .9 5 4 2 .7 8 M B M 1 9 1 H B .6 1 R C B B P O P ...... 8 7 .6 8 5 9 .9 5 Μ BM 130 Bridi UFO - fiberglass ...... 1 2 9 .9 5 8 9 .9 8 M B M 4 3 0 Hi-Flight Mirage ...... 4 1 .9 8 4 . 2 5 MBM 132 Coverite Balsarite 8 o z ...... 3 .2 0 2 .3 8 M B M 1 9 2 Hobbypoxy Formula 2 Epoxy 8 02 . 2 .9 8 3 .9 5 MBM 133 Coverite Glaskote 'Λ p t ...... 2 .9 5 2 .1 8 M B M 1 9 3 Hot S tuff Adhesive .5 oz ...... 2 .7 8 MBM400 Cox Hydroblaster w/.049 & Radio . . 1 1 0 .9 5 7 4 .9 8 M B M 1 9 4 House of Balsa P-51D (.29 to .40) . . 6 4 . 9 5 3 9 .9 8 1 0 9 .9 5 MBM 137 Cox RTF Cubw/Engine& Radio. 9 9 . 9 5 6 9 .9 8 M B M 3 8 9 House of Balsa .40 P-51D - glass. . . . 7 9 .9 8 MBM 138 Cox RTF Cessna Centurion .... 6 9 .9 5 4 8 .9 8 M B M 1 9 7 J e m c o F 4 U - 1 A C o r s a ir ...... 7 9 .9 5 5 5 .9 8 MBM418 Cox RTF Piper Arrow ...... 7 4 .9 5 5 2 .4 8 M B M 4 2 4 K & 8 .1 9 R C ...... 5 0 .0 0 3 2 .4 8 MBM 139 Cox RTF Sportavia Trainer .... 8 9 .9 5 6 2 .9 8 M B M 2 0 5 K & B .21 O u t b o a r d ...... 1 0 7 .0 0 6 5 .9 8 M8M134 Cox Tee Dee .049 Engine ...... 2 4 .9 5 1 4 .9 8 M B M 4 0 6 K 81B .21 RC Schneurle w /M uffler . . 7 2 . 5 0 4 7 .9 8 7 2 . 5 0 MBM 135 Cox Tee Dee .09 Engine ...... 2 6 .9 5 1 7 .4 8 M B M 2 0 0 K & B . 4 0 R C E n g i n e ...... 4 3 .4 8 MBM387 Cox Tee Dee .051 Engine ...... 2 4 .9 5 1 5 .4 8 M B M 2 0 1 K & B .4 0 R C P r e s s u r iz e d ...... 1 0 5 .0 0 6 2 .9 8 MBM427 Cox Tradewinds Sailboat...... 1 6 9 .9 5 1 1 8 .9 8 M B M 2 0 7 K & B .4 0 R C S p o r t M a r i n e ...... 8 2 . 5 0 4 9 .4 8 MBM 146 Craft-Air Butterfly II ...... 4 9 .9 5 3 2 .4 8 M B M 2 0 3 K & B .6 1 R C w / M u f f l e r ...... 9 6 . 9 5 5 7 .8 8 1 2 5 .0 0 MBM 142 Craft-Air Drifter I I ...... 1 9 .9 5 1 3 .9 8 M B M 2 0 4 K&B .61 RC w/M uffler & Pump . . . 7 4 .9 8 9 9 . 9 5 MBM 141 Craft-Air H.D. Hi-Start ...... 4 9 .9 5 3 2 .9 8 M B M 4 1 9 Kraft RTF Electric Cardinal...... 7 4 .9 8 7 9 .9 5 M B M 1 4 8 C r a f t - A ir F ie ld B o x ...... • 2 9 .9 5 1 9 .9 8 M B M 4 2 0 Kraft Electric M otorcycle ...... 5 9 .9 8 1 9 .9 5 MBM423 Craft-Air Piece O' Cake ...... 2 4 .9 5 1 7 .4 8 M B M 2 0 8 L&L On-Board Ignition System . . . . 1 4 .9 8 MBM409 Craft-Air Upstart (3/16 inch) . . . 1 7 .9 5 1 2 .5 8 M B M 4 1 4 L&L Tachometer - N E W !! ...... 5 9 .9 5 4 4 .9 8 7 4 .9 5 MBM 145 Craft-Air Viking MK I Sailplane. . . . 7 9 .9 5 4 9 .9 8 M B M 2 1 0 Lanier Caprice ...... 4 6 . 9 8 MBM 149 DAE Series IV Power Panel...... 3 8 .9 5 2 4 .9 8 M B M 4 0 7 L a n ie r C o m e t I I ...... 6 4 .9 5 4 0 . 9 8 1 9 9 .9 5 MBM 151 Devcon 5 min. Epoxy-9 oz ...... 6 .9 5 4 .4 8 M B M 2 1 3 Leisure 1/8 Dune Buggy ...... 1 6 3 .9 8 5 9 .9 5 MBM416 Dremel No.730 Disc-Belt Sender . . , 8 9 .9 5 5 9 .9 8 M B M 4 3 2 Mark's Bird of Time G lid e r ...... 3 8 .9 8 5 2 .9 5 MBM 152 Dremel 210 Drill Press ...... 2 3 .9 5 1 5 .9 8 M B M 2 1 5 Mark's Models Bushwacker w/Acces 3 3 .9 8 2 3 .9 5 MBM 153 Dremel 381 Moto Tool K it ...... 7 4 .9 5 4 6 .9 8 M B M 2 1 4 Mark's Models Wanderer 7 2 " ...... 1 4 .3 8 3 1 9 5 MBM 154 Dremel 572 Deluxe Moto-Shop . . . 9 9 .9 5 6 2 .9 8 M B M 2 1 7 M E N T r a in e r .1 5 . 2 5 ...... 2 2 .9 8 3 9 .9 5 MBM 155 Dremel 580 Table Saw ...... 9 9 .9 5 6 2 .9 8 M B M 2 1 8 Microflame 4400 Dlx. W elding K it . . 2 9 .9 8 4 9 . 9 5 MBM 156 Dubro Lg. Nylon Hinges (15) .... 2 .4 9 1 .88 M B M 2 2 0 Midwest RK-40 A xiflo Fan K it .... 3 4 .2 8 3 3 .9 5 2 1 .9 8 MBM 157 Dubro Flex Cable - 2 0 " ...... 1 .4 9 1 .1 8 M B M 2 2 1 Midwest Little S tik ...... 3 2 .9 5 MBM 158 Dubro Kwik Fill Fuel Pump ...... 1 0 .9 8 6 .9 8 M B M 2 2 2 M id w e s t C a rd in a l A R F ...... 2 1 .3 8 3 3 .9 5 2 1 .9 8 MBM 159 Dubro No. 203 Kwik-Switch Mount 1 .7 5 1 .3 8 M B M 2 2 3 M id w e s t S u p e r C h i p m u n k ...... 4 2 . 9 5 MBM160 Dubro Kwik-Hinge Slotter ...... 1 .9 5 1 .5 8 M B M 2 2 4 M id w e s t S w e e t S t i k ...... 2 5 .7 8 4 4 . 9 5 2 8 .9 8 MBM 163 Dumas Atlas Van Lines U -1 ...... 5 0 . 0 0 3 2 .4 8 M B M 2 2 6 Midwest Attacker ...... 8 1 .9 5 MBMH62 Dumas Big Swamp Buggy ...... 3 5 .0 0 2 2 .3 8 M B M 2 2 8 M ille r N o . 2 0 1 7 S p ra y S e t ...... 4 8 .9 8 4 9 9 5 MBMI164 Dumas Competition DV60 · glass. . . 1 0 0 .0 0 6 3 .9 8 M B M 4 1 0 Monogram RC Electric Leopard Tank 2 9 .9 8 9 .0 0 5 .3 8 MBMI401 Dumas Dauntless ...... 7 5 .0 0 4 7 . 9 8 M onokote Reg. and Trans. Colors. . . 1 0 .5 0 6 .2 8 MBMI165 Dumas Hot Shot 24" Tunnelhull . . 3 2 . 0 0 2 0 .7 8 M o n o k o t e M e ta llic C o l o r s ...... 4 4 9 .9 5 2 7 7 .4 8 MBMil 66 Dumas Hot Shot 21" - glass ...... 7 0 .0 0 4 5 .4 8 M B M 2 3 0 MRC RTF Cessna w/Enya .35 RC . . 4 9 9 .9 5 3 1 4 .9 8 MBM 429 Dumas Sail Control U nit ...... 5 4 . 0 0 3 9 .9 8 M B M 2 3 1 MRC RTF Cherokee w/Enya .40 RC . 9 9 . 9 5 7 4 .9 8 MBMU67 Edson Adjustable Motor Mount. . . 6 .9 5 5 .5 8 M B M 2 2 9 MRC RTF Hawk Trainer w/Enya .15. 8 4 . 9 8 6 3 .6 8 Enya Engines ...... Call For Low Prices M B M 4 2 2 MRC Lamborghini Countach Special. 1 7 4 .9 8 1 3 9 .9 8 MBM 168 Fox .15 RC Schneurle ...... 3 7 . 9 5 2 2 .7 8 M B M 2 3 7 M RC 1/12 Scale Leopard Tank .... 7 4 .9 8 4 9 .9 8 MBM 169 Fox .19 RC Engine ...... 3 6 .9 5 2 2 .9 8 M B M 2 3 3 M R C P o rs c h e 9 3 4 T u r b o ...... 8 4 . 9 8 6 3 .6 8 M B M 1 7 0 F o x .2 5 R C E n g in e ...... 3 6 . 9 5 2 2 .9 8 M B M 2 3 5 M R C F M C C o m b a t V e h i c l e ...... 1 6 9 .9 5 1 1 9 .9 8 M B M 3 3 8 F o x .3 5 U / C ...... 2 6 . 9 5 1 7 .4 8 M B M 4 2 1 B u d N o s e n P - 5 1 ...... PHONE ILLINOIS TOLL FREE: 800-252-3336 (217) 384-1010 CONTINENTAL UNITED STATES TOLL FREE: 800-637-7686 THESE SPECIALS ARE GOOD UNTIL THE 15th OF THE MONTH OF THIS ISSUE. ONLY. ALL SPECIAL PRICES ARE SUBJECT TO CHANGE IF RETAIL PRICES CHANGE DURING SALE PERIOD. S T O C K N O W NUMBER DESCRIPTION RETAIL ONLY MBM238 Ohio Superstar Softglas Q t ...... $9.95 $7.98 MBM239 OPS .40 RC Marine w/Tuned Pipe . . 155.00 119.98 MBM426 OPS .60 Ursus w/Perry Carb ...... 130.00 99.98 MBM241 OPS .60 RC Big Red w/Pipe ...... 186.00 137.98 Μ BM240 OPS .65 RC Marine w/Tuned Pipe . . 226.00 164.98 MBM242 Orline Fokker D V II ...... 97.50 74.98 HOBBIES MBM428 Orline Sopwith Pup - NEW II ...... 119.50 89.98 6 Channel w/2 KPS-14II Servos $149.95 MBM397 ! M 8 M 248 Pacer X-30 Adhesive .36 o z ...... 3 . 5 0 2 .2 8 MBM249 Pacer Zap Giant .36 oz ...... 3 . 5 0 2 .2 8 6 Channel w/3 KPS-14II Servos 174.95 MBM 398 MBM251 Pica Cessna 182 ...... 99.95 64.98 6 Channel w/4 KPS-14II Servos 199.95 MBM 339 MBM253 Pica T-28B ...... 89.95 58.48 MBM255 Pica W aco ...... 89.95 59.98 6 Channel w/4 KPS-15II Servos 209.95 MBM 340 MBM256 Pica Duelist 2/40 ...... 89.95 59.98 Tower KPS-14II Servo ...... 25.00 MBM 399 MBM259 Power Pacer 9.6 v. Model 300 ...... 59.95 46.98 THIS SALE IS NOT RETROACTIVE I MBM260 Quadra 2 Cu. In. Aircraft Engine . . . 139.95 99.98 NOW STO CK i MBM262 Robart Incidence M eter ...... 15.95 10.98 M8M263 Robart Super Pumper Mark II ...... 17.95 11.98 MODEL RETAIL ONLY NUMBER M B M 2 6 4 R o b a r t A u t o M i x ...... 9 . 9 5 7 .4 8 KRAFT KRAFT KRAFT KRAFT KRAFT KRAFT! M B M 2 6 5 R h o m 2 G e a r-M a in s ...... 8 7 . 0 0 5 6 .5 8 M B M 2 6 6 R h o m 3 G e a r - F ir e w a ll...... 1 2 5 .0 0 7 9 .9 8 K P-2 AW (Wheel) w/14IIA's. . . $139.95 $91.98 MBM344 MBM267 Rhom 3 Gear-Flat M ount ...... 125.00 79.98 KP-2AW (Wheel) w/15IIA's. . . 145.95 95.98 MBM 345 MBM268 Royal Photocell Tachometer ...... 39.95 33.98 91.98 MBM346 ! M B M 2 7 2 S & O B a tte r y T e s t e r ...... 2 9 . 9 5 1 9 .9 8 KP-2A (2 Stick) w/14IIA's . . . 139.95 ME.M274 Sealector Custom Model Iro n ...... 28.35 19.98 KP-2A (2 Stick) w/15IIA's . . . 145.95 95.98 MBM 347 M 8 M 4 1 5 Sig Beechcraft Bonanza · NEW!! . . . 69.95 52.48 KP-2AS (1 Stick) w/14IIA's . . 139.95 91.98 MBM 348 MBM275 Sig Piper J-3 C ub ...... 44.95 32.38 M B M 2 7 6 S ig K a d e t T r a in e r ...... 3 9 . 9 5 2 8 .7 8 KP-2AS (1 Stick) w/15IIA's . . 145.95 95.98 MBM 349 M B M 2 7 9 S ig K a v a l i e r ...... 4 4 . 9 5 3 2 .3 8 KP-3AS w/KPS-14IIA's...... 149.95 99.98 MBM433 M B M 2 7 7 S ig K o u g a r ...... 4 7 . 5 0 3 4 .1 8 M B M 2 7 8 S ig S m it h M i n i p l a n e ...... 5 4 . 9 5 3 9 .5 8 KP-3AS w/KPS-15IIA's...... 155.95 103.98 MBM434 MBM282 Skyglas Phoenix 5 ...... 55.00 36.98 KP-4A w/KPS-14IIA's...... 309.95 191.98 MBM 350 MBM285 Slimline Std. Muffler for K&B .35-.40 9.95 5.98 Solarfilm Reg. Colors ...... 7 .9 8 4 .4 8 KP-4A w/KPS-15IIA's...... 321.95 200.98 MBM351 MBM304 Sonictronics No.1250 12 V. Fuel Pump 15.95 11.98 KP-6A w/KPS-1411 A ' s ...... 339.95 212.98 MBM352 MBM431 Splckler Quickie 500 ...... 43.95 32.98 351.95 219.98 MBM353 MBM288 Southern RC Compensator · glass. . . 89.95 58.48 KP-6A w/KPS-15IIA's...... Μ BM 290 Stafford B 24D Liberator ...... 199.95 129.98 KP-5C w/14ll's or 15ll's...... 389.95 274.98 MBM354 MBM291 Stafford Twin Comanche balsa . . . 149.95 104.98 KP-5CS w/14ll's or 1 5 ll's------389.95 274.98 MBM 355 MBM293 Sterling Puddle Jumper ...... 17.95 12.58 Μ BM 294 Sterling Puddle Jumper MK II. . . 41.95 29.38 KP-7C w/14ll's or 15ll's...... 529.95 377.98 MBM 356 M B M 2 9 5 S t e r lin g F le d g lin g ...... 4 1 . 9 5 2 6 .4 8 KP-7CS w/14ll's or 15ll's------529.95 377.98 MBM 357 MBM 296 Sterling V4A Corsair ...... 31.95 20.98 MBM305 Sullivan Electric S tarter ...... 38.95 24.98 K PS-1411 Servo...... 44.95 34.88 MBM358 ! MBM 306 Sullivan Deluxe Starter ...... 41.95 27.28 K PS-1511 Servo...... 44.95 34.88 MBM 359 MBM 307 Sureflite Skylane 182 ...... 39.95 25.98 KPS-18 Servo (Super Mini) . . . 54.95 43.98 MBM 360 MBM 308 Sureflite All Foam J-3 C u b ...... 39.95 25.98 MBM 309 Sureflite’/.A J-3 - foam ...... 29.95 19.48 KPS-14IIA Servo...... 39.95 27.98 MBM 361 MBM 310 Sureflite Spitfire - fo a m ...... 39.95 25.98 KPS-15IIA Servo...... 42.95 29.98 MBM362 ! MBM 390 L.R. Taylor Multi-Charger ...... 24.95 19.98 MBM 408 L.R. Taylor Super Power Panel.... 89.95 69.98 KPS-20 Ball Bearing Water M B M 4 2 5 T o p F lit e C o n te n d e r 4 0 ...... 4 9 .9 5 3 2 .9 8 Resistant S e rv o ...... 49.95 38.98 MBM435 j M B M 3 1 6 T o p F lit e C o n te n d e r 6 0 ...... 5 6 . 9 5 3 6 .9 8 MBM 320 Top Flite F4U-1A Corsair ...... 99.95 59.98 FUTABA FUTABA FUTABA FUTABA M B M 3 1 5 Top Flite Freshman Trainer ...... 47.95 30.98 FP -2 G S...... 109.95 72.98 MBM363 MBM 314 Top Flite Heat Gun ...... 29.95 19.98 MBM364 I M B M 3 1 7 Top Flite P-51 D M ustang ...... 74.95 44.98 FP-2F w/S-7's...... 149.95 98.98 M B M 3 1 3 Top Flite Sealing Iro n ...... 19.95 13.98 FP-2F w/S-18's or S-22's...... 134.95 89.98 MBM 365 MBM413 Top Flite Trim Seal Tool...... 14.95 10.98 FP-2E w/S-7's...... 149.95 98.98 MBM366 M B M 3 1 1 Top Flite 10x6 ( 6 ) Super Maple. . . . 8.10 5.68 MBM 312 Top Flite 11x7 ( 6 ) Super Maple. . 9.30 6.48 FP-2E w/S-22's...... 134.95 89.98 MBM367 MBM 321 Tower RC Long Plugs - 6 P lu g s .... 8 . 9 4 4 .6 8 FP-3S w/S-18's...... 144.98 94.98 MBM 368 MBM 322 Tower 12 v. Starter Battery - wet. . . 25.95 12.98 MBM369 MBM 323 AFI 12 v. Battery Charger ...... 8 .9 5 6 .9 8 FP-3S w/S-20's...... 169.95 109.98 MBM 3 2 5 Tower Rubber Bands 54 Lb. No.64 . . 1.50 .98 FP-3FN w/S-18's or S-22's . . . 219.95 139.98 MBM383 1 MBM 329 VK Cherokee ...... 72.95 48.98 289.95 179.98 MBM370 ! W e b r a ...... Call For Low Prices FP-4FN w/S-18's...... MBM331 Wing Mfg. The Love M achine ...... 69.95 34.98 FP-4FN w/S-16's...... 319.95 199.98 MBM371 ί MBM 3 3 4 X-Acto No. 5087 Knife & Tool Chest 29.95 20.98 FP-5FN w/S-18's...... 319.95 204.98 MBM372 ί MBM336 Zinger Props 9x6 6 each ...... 7 .8 0 5 .4 8 MBM337 Zinger Props 10x6 6 each ...... 8 . 4 0 5 .8 8 FP-5FN w/S-16's...... 359.95 222.98 MBM373 MBM338 Zinger Props 11x7 6 each ...... 9 . 6 0 6 .6 8 FP-6FN w/S-18's...... 339.95 209.98 MBM374 FP-6FN w/S-16's...... 369.95 234.98 MBM375 S-7 Servo...... 39.95 29.98 MBM379 39.95 29.98 MBM378 , Remember, these are only a few of the several thousand different S-16 Servo...... 29.95 22.48 MBM377 items that Tower Hobbies stocks. If you need an item that does S-18 Servo...... 39.95 29.98 MBM437 1 not appear in this issue, give us a call to see if we have it. The S-20 Servo (M in i)...... chances are good that we do. By all means compare our prices SANWA SANWA before you buy elsewhere; you'll be dollars ahead. SANWA SANWA SANWA N0.8O2O 2 C hannel...... 99.95 69.98 MBM380 your District V.P. that it is another Combat kit, this time and good wood this model does not I’ll leave you to figure out why the being for the FAI Combat event. A n look hard to build. Especially when you letters should go direct to the con other notion is that this has to be the take into account that the completed cerned individuals, rather than to AMA most difficult to build Combat model on lane is to be your Saturday afternoon HQ, asking them to forward copies... . the face of this earth. If the first was true, ot rod. Show biz. Blind the folks with OUTRAGEOUS so would be the second, but it doesn't dazzling speed and itty-bitty loops. That can be the only suitable one- work out that way. Thinking about that, Mike may have word description of the kit that came Although the MonoBoom does look hit upon the proper way to market this through the front door the other day. It like your usual planform for a modern model. Give everybody something that is from the Hoffelt Group and is called Combat plane using a very high aspect is very fast and q u ick-tu rn in g and let the M onoBoom FAI. ratio, M ike H offelt says the plane was them have fun playing with it and trying First glance leaves one with the notion designed to “ extract more aerodynamic to prove or disprove the claimed turning performance from the Rossi 2.5cc performance of minimum 2.6-foot radius engine than anything available in the loops. Hey, that’s what it says on the data w orld today.” Fie also says the model sheet, and from what I have heard about was not designed to meet a set price, be Mike and his testing methods I'm not convenient to manufacture or simple to doubting it . . . will still have to see it for build. myself, just not second-guessing the As if to prove a point, the cost of the designer. MIDWEST single kit is $24.00. w ith a trip le kit going Anyway, some of my most enjoyable for $65.00. Not cheap, but then it is flying sessions have been those times we doubtful that you have ever been just took out some really hot Combat MODEL SUPPLY offered a kit with such precise pre models for "sport” flying at speeds well fabrication. M ike uses balsa cut to his over 100 mph. Trying to just miss the "Your S u p p lie r, density and grain specs, ribs are preci ground. Working on that tricky evasive maneuver. Working the devil out of a Not Your Competitor" sion cut complete with notches for spars, all sheeting is cut to shape, the model for over three minutes while • Stocking over 150 trailing edge pieces are chamfered, the others can’t believe that you are really in lines of merchandise engine mount and nacelle assembly are control. • Fast service to all parts laminated with the engine bearer milled The only thing lacking has been that of the USA and also on to accept the mounting lugs on either any proficient Combat flier can keep up foreign orders Rossi or Cox .15’s, the boom is laminated with the best of model/engine com with a channel through it for the control binations. When you’re used to flying • Special cash discounts cable (yes, cable, not a pushrod like you the same equipment in Combat matches, up to 10% are used to using). Other features are where you have to fly the model without • Freight allowances up to 5% machined nylon bushings for location looking at it most o f the tim e, flying solo • New Golden Dealer program and hinging of stab, machined aluminum can be a little ho-hum after awhile. • Weekly mailer pivot for stab, formed single-point W ith the FAI M onoB oom , however, leadout guide, molded glass exhaust this ought to be a little different story, if I • Phone orders encouraged ducting, and the usual stuff like full-size can believe reports about its flying characteristics coming from Charlie DEALERS ONLY drawings,decalsand soon. Topping it all CALL US AT 312-759-1955 off is a very well-done instruction Johnson and John Hammersley . . . and I manual of 10 or 12 pages covering can. Excuse me w hile I go do a little more MW 7791 everything you would need to know to work on the Mono, I’ve just got to fly this whack this beauty out in around 8 hours thing as soon as possible.... MIDWEST MODEL or so. For more information on this kit, as SUPPLY CO. Even though it has to be regarded as a well as an AMA Combat version now model you would not want to build a being tooled up for, contact Hoffelt dozen of, only to smash them up in Group Aerosport, P.O. Box 99774, San I f I I I 1.1'll· M O D U . D IS T K IM TO K inti i it. lit tit ns niH turn :to re tm Combat flying, thanks to all of the Diego, CA 92109. If you want to call, ask prefabrication, excellent instructions fo r M ike H offelt at (714) 488-6745. · 84 R/C MODEL BUILDER PROP DRIVE UNIT) KWIK ο.*., m u for big airplanes G LO P LU G CONNECTOR FOR ENGINES .10 A N D UP PERFECT FOR HARD TO GET AT PLU G S One piece brass barrel THE snaps on to plug for positive NAME OF starting 2 4 -1 /2 " THE GAME IS long with attached battery $ 1 0 0 . 0 0 POWER! lugs Completely assembled AND YOUR.60 No. 147 f å less engine & prop. ENGINE HAS GOT IT! 2 .2 5 < r SLOW. POWERFUL FLIGHT IS ACHIEVED WITH THIS UNIT, MAKING YOUR AIRCRAFT LOOK AND SOUND REALISTIC. MINI- ☆ R.P.M .’S RANGING FROM 600-5000 DEPENDING ON MUFF-L-AIRE 11 ENGINE AND PROP C A T . NO. ☆ SWING 18". 20", 22” . AND 24” PROPS WITH 8" OR 10’ PITCH W ITH YOUR .60 EN GIN E 236 * SEND * STAMPEO, SELF ADDRESSED ENVELOPE FOR COMPLETE STATISTICS AND FULL SIZE ORAWINOS Only $6.95 BOLT-ON PRESSURE FITTING FOR ENGINES Set includes brass pressure fitting, nut and fibre .09 to .25 washer. Can easily be mounted anywhere on muf fler by drilling a hole (#28 drill) and bolting it in HEAVY DUTY PLATED place or tap smaller hole for 6-32 threads. BRASS DURA-COLLARS C A T . NO. 241 75c 7/32" No. 243 1/4" No. 244 2 For 1.00 The ultimate, in line fuel filter with twice as much fuel filtering capacity as most filters Vi-20 X 2" now available The extremely fine 130 micron polyester screen filters out even the smallest NYLON WING BOLTS particles, yet. because of the large filtering These strong black nylon wing bolts O N LY 1 ’A 'L O N G area, it does not restrict fuel flow Proven 20% FILTERS IN EITHER DIRECTION better than wire screen equivalents, this were designed classy looking aluminum filter should be used with safety and The between engine and tank or on your fuel can convenience outside ,'ne· ACTUAL SIZE in mind hex will f't CAT. NO. 162 your glo plug/prop nut wrench and the O N LY Λ = inside socket is made CLEAN BY BACK FLUSHING 3 3 $1.75 ^ to lit a 3/16" alien wrench Both methods insure a safe, NOTHING GETS PAST THE FINAL FILTER ! non-slip way to secure or loosen your wing bolls 4 pQp CAT. NO. 142 $1.00 rDU-BRO PRODUCTS INCORPORATED1 480 Bonner Road Wauconda, Illinois 60084 U.S.A. and they just like to fly and fly , . . and o fte n ! HAVE WE GOT Simple though it might be. it has won contests. Set up a simple precision event A SYSTEM FOR YOU! where each entrant establishes a target Pro Line has a radio control time and attempts to equal it on each of a further four flights, differences being system to meet your needs in the calculated as percentage errors and air, on the ground, and in the water. totaled. Simple and good fun . . . and If you are starting out surprisingly hard to achieve. First Night and want something better, excels in this. In one event the boys took look at the Pro Line CADET series. first and fourth, with Dad making 3rd If you're the sporting or after borrowing one of the models)!). Try the model, you'll like it . . . and - 3 competition type, ask to see good flying! · Pro Line's "middle of the line” COMPETITION series. And if you I a Choppers .... Continued on page 47 need the extra features to win that important contest, the Pro Line require an additional tail rotor control CUSTOM COMPETITION series input whenever the main rotor is is for you. speeded up, or when the collective 1 pitch is changed, or both. In the past, When it comes to quality, ^ L this has been accomplished in a satisfac you can’t beat Pro Line. ^I'WNEH'S g, tory manner by mechanical mixing Watch for the new Pro Line levers and pushrod arrangements; how 3-channel system. S.I.S ever, the new transmitters supercede It's coming! these contraptions by electronically controlling two or even three servos All systems available with simultaneously at an adjustable (pre-set) rate. Last but not least, they made it single or dual stick. possible to reverse the direction of servo rotation by setting the appropriate controls on the transmitter... no more Pro Line Electronics Inc. left hand/right hand servos to mess 10632 North 21st Ave., Suite 11 Phoenix, Arizona 85029 around with! We really have to give the radio (602) 944-4626 a subsidiary of Pace Industries manufacturers credit for all the research and development in the past couple of years or so. Admittedly, the new gear is using a winder and stretching the rub rather expensive, but does represent a First Night... Continued from page 54 ber. In general, First Night likes just a tremendous step forward in precision touch of right thrust as the power control of R/C model helicopters (and anyway! increases and, given about 600 turns on airplanes, too!). Flying First Nighi is a cinch! Three or good rubber, it wiii band un in a spiral A few months ago, I heard of a do-it- four yards of 1/4-inch rubber, made up that causes a surprising number of yourself dual rate control system for into six strands and tensioned, is ade people to walk over and inspect it after those who have a little knowledge of quate and trim m ing could not be easier. wards. On full turns it climbs extren. 'v electronics and who dare to get into Try a hand glide or tw o over soft grass; fast and is guaranteed to cause a mile, their transmitter for a slight modification they won't tell you too much due to the sensation when launched amongst a or two. After checking around, I finally fixed prop, but at least they’ll show that gaggle of Wakefields or Coupes, when it got a lead from John Gorham, who had it is not going to stall violently or dive initially outclimbs the whole pack. seen it on a friend’s transmitter, and straight onto your toes. Both of our It is by no m eans a fa ir w e a th e r decided to do a little experimenting models required a smalj piece of model machine, either; when the wind is myself. If you care to try it out, as I did, ing clay at the rear to help the glide after flattening the grass and all self-respect you should recognize that thisschematic the model had been up under power. ing model airplanes lie snug in their will provide a reduced servo rate when Put on about 50 hand turns and the boxes. First Night is still going strong . . . the switch is moved on. and a normal model will climb away to the right; from albeit a long way. Stability is exceptional, servo rate when the switch is off. It will then on increase the number of turns. the gusts bounce it around the sky. but it not give you an increased servo move keeps on going regardless and is tough ment, therefore you must adjust the enough to keep coming back for more. pushrod/bellcrank system on your chopper to provide the desired high Naturally enough, performance is modest. On full turns it will hit around 35 rate/low rate control inputs. Another thing to be aware of is that it might not seconds, and youngsters don't need full work on your particular transmitter. turns anyway. Twenty-five to thirty WHAT'S WRONG seconds does not seem too much to the You’ll just have to experiment and see WITH THIS PICTURE? experienced F/F man. but it is m ore than for yourself. The first one I tried was the It looks like a high-performance pattern airplane, and enough for the kids . . . but don't expect Orbit transmitter, and the results were it is! What's "wrong" is that it doesn't use retracts, or to get in too much flying with your own excellent. The Kraft transmitteraccepted a pipe, or a fuel gulping 60 But there's nothing wrong with hassle-tree flying-find out for yourself! models, for every couple of minutes or it OK, but was a little more difficult to The Fun-X kit includes an epoxyglass fuselage with so the small fry will be panting back trim out in a linear fashion on both sides firewall installed, foam wing cores, and instructions wanting you to hold or wind once again. of servo center. All-up weight 23 o i with 2-channel and Tee Dee The modification consists of installing 049 Price $35 00 ppd . If you really want more time to yourself, then go ahead and put a freewheeling two small trim pots inside the transmitter Order direct from case and a switch on the outside w hich I & M Glascraft Co JMG l a s c r a f t prop on the shaft and thus let it fly 30820 Mayflower. Roseville. Mich 48066 longer and farther, but remember that can be flipped on or off conveniently phone 013 ) 773-7069 the prime purpose of the airplane is to with your free finger (on a helicopter??). (Michigan residents please add 42sales tax ) satisfy and encourage the youngsters, Location of the components is not 86 R/C MODEL BUILDER INDY R/C SALES, INC. 10620 N. College, Indianapolis, In. 46280 1- 800- 428-4682 CALL TOLL FREE Save 40% INDY SWAP GOLDBERG SKYLARK 56-M K II CIPOLLA .09 JR. DIESEL L is t ...... 49.95 L is t ...... 28.95 SPECIAL...... 29.98 SPECIAL...... 19.95 TALK Save 38% Forster 29 Trade Engine Como 40 R/C We are trying to trade enough we may send you a post card. S89.00. Shave a little from this engines so that we can publish with your trade-in and you a used engine catalog or listing. We are always testing new im have moved into R/C for the We have been advertising to get ports and we come by some price of dinner for two with a INOY FILM MK II trade-ins for about six months. unusual merchandise on a little candlelight 3 Channel Even though we are making a onesy, twosy basis (very inter price, dry, with 2 servos (these Opaque matches K&B Epoxy. dozen trades on a good day, we esting). You might also list the servos US-4 - $17.95) are White, orange, yellow, black, cannot seem to build up our brand of R/C you are main really deluxe low profile and blue, Corsair blue, bright red. used engine inventory. Our lining. Indy can let you know small with 16mm motors. If List: Per ro ll...... 7.98 walk-in Hobby Shop (store if we get some items that are you want to spring for nicads, SPECIAL: 3.99M -3 rls . 9.99 hours are 9:00 AM to 7:00 PM compatible with your R/C sys add $19.20 for 12 and S8.95 daily and 10:00 AM to 5:00 tem. for a charger. For dry batteries, Send your old engine, along OUBRO HAND PUMP PM EST Saturday) buys up the Panasonic (12 required) special with $1.00 (return postage), L is t ...... 10.95 used engines as fast as we get By the " X " near R/C Brand heavy duty · .49 each or S5.8B with a note telling us what new Save 25% SPECIAL...... 6.79 them. So, we are now trading indicate your main interest for 12. engine you want. Then give us closer to make even more PT=pattern, PY= pylon, G= a toll free call on our WATTS trades. glider, S=Sunday flier, SC=scale It is easy to find a small box to LINE for our offer -1-800- & M= quarter scale. send a trade-in to Indy. Also. 428-4682. You w ill be surpris Register your present engines Indy has a toll free number - ed at our high trade-in allow with us and indicate the type 1-800-428-4682 - so that you ances on good runners (15'* — of equipment and the next pro Indy has taken engine trades can negotiate your trade w ith 6Q's). Premium prices for an jects you are thinking. If some on the new INOY 3 Channel out additional phone call ex tiques. A couple of bucks for thing outstanding comes along, radio which is introduced at pense to you. clunks and 1/2A's. CUT ATLAS GLIDER Almost-Ready-To-Fly REGISTER THE ENGINES YOU OWN WITH INDY List...... 14.95 SPECIAL...... 11.22 T tail design. Wingspan of 9414", length of 45V4", wing MFG. TYPE COND. MFG. TYPE COND. area 697 sq. in. Nice with Indy 3 channel radio. L is t ...... 99.95 Save 30% SPECIAL...... 59.95 PICCO 65 MARINE F.E.R.I. R/C w/flywheel, water R /C B R A N D . cooled jacket and tuned pipe. List...... 249.95 SPECIAL INTRODUCTORY List below the engines, R/C systems and major items such as kits, OFFER...... 174.97 starters, retracts, etc. that you are considering in the near future. TRADEWINOS Ready Το-Sail R/C sailboat V Completely finished molded hull with deck fittings in stalled. Meets all requirements for AMYA 36 600 Class. Plus Cox/Sanwa No.8020 dual stick radio. List...... 269.90 SPECIAL...... 140.35 LAST NAME CITY v > — INOY US-Ill SERVO List...... 18.95 SPECIAL...... 13.95 Extra set of gears w/output arm...... 2.00 system for throw and servo centering. natural thing to do, with those blades One pot controls the sensitivity and the unloading in inverted flight) you will other pot centers the servo. The usual suffer a drastic reduction in control method is to install two complete sys effectiveness that is needed for a quick tems in the transmitter . . . one goes on and safe recovery. the elevator (pitch fore and aft) control FINAL APPROACH pot and the other one for the aileron Probably the most important facet of (roll) control pot. It’s your choice, but the inverted spin technique described both are desirable for all-out aerobatics. above is to be sure you have a sound All parts can be obtained at your local helicopter before you attempt it. This is Radio Shack for three or four bucks per particularly important in the control control system. Good luck! system linkages and especially in a strong main rotor blade system. Almost INVERTED FLAT SPINS without exception, each of the pilots Ever since I watched Bill Jolly roll his who do this maneuver have crashed in Heli-Boy over on its back and then subsequent maneuvers as a result of execute an inverted spin. I have been blade failure! Kim figures on rotor envious as hell! John Gorham seemed to blades splitting-out after five or six spins find the right groove also, and got to at the most, and recommends frequent where he could recover at w ill (even at 5 inspections for cracks and weak glue feet altitude on occasion). Once in joints. awhile the choppers didn't recover, and That’s all for this month . . . BCNU the results were some pretty horrible crashes! And then my son Kim figured it soon! · was the most spectacular maneuver in the book and set about discovering the W heels...... Continued from page 62 methocJ of entering and exiting the maneuver w ith a high degree of success. 5) If a hidden keeper is desired, as in Atfirst herolled thechoppertoinverted, figure 8. a so-called “ recessed" hub can then kicked in full rudder. Later, he be formed by routing it out with a steel found the maneuver had a betterchance rotary cutter or a suitably sized cylindri of attaining a more stable entry by doing cal emery wheel. If you are feeling a half-loop to inverted, then applying steady, this job can be done using a full rudder. This way. the chopper has hand-held Moto-Tool fed into the minimum forward speed at the top of wheel held flat on the table. Do this the loop and sort of fell into the "slot." b e fo re mounting the wheel on the Recovery was best affected by using full toothpick, and use the scribed I.D. line opposite aileron and slight back elevator as a guide. However, a small drill press until upright, then fly away. Important would do the best job. Once the wheel is points to remember are: 1) Rudder (tail shaped, the hub can be counterbored critical, but the trim pots should be rotor) should be in the direction op for the hidden keeper, and the balsa hub mounted so that you can insert a small posite to main rotor rotation for best and cap installed to hide it. The counter- screwdriver through a Εκ le in ihe case most stable spin, i.e.: For clockwise rotor boring is best done with a small emery for adjustments. It's best if you wim it up rotation, apply left tail rotor control: wheel or rotary cutter rather than a drill in a breadboard manner and make sure 2) Recovery roll should be opposite to bit. because they produce a flat-bot it works OK before you start mounting the tail rotor control, i.e.: Left tail rotor tomed hole. pots, switches, etc. Electronically, you in spin requires right aileron for roll Another easily made variation is the simply insert a 5.000 ohm trim pot in out: 3) Never, never reduce power WW-I or vintage wheel. This is spun parallel with the desired transmitter pot. during the maneuver. Just leave in the from two or three thin plies, as shown in a single-pole single-throw (SPST) switch amount of power used to achieve the figure 9. The tire itself is a suitably sized to change from high rate to low rate,and roll or loop entry and it should recover O-ring. Be sure to make the O.D. of the a 10.000 ohm trim pot to adjust the easily. If you reduce power (and it’s a w h e e l just larger than the average Q h b -e n g in e s Made in W.Germany PERFORMANCE · PRECISION · POWER DESIGNED AND MANUFACTURED TO MEET THE HIGH PERFORMANCE DEMANDS OF TOMORROW’S COMPETITION-TODAY! HBt21 PDP* (3.5 ccm) The HB-CAR ENGINE is an engine with •Perry Directional Porting one purpose in mind.. .TO WIN AUTO RACES! This is not an aircraft engine that was modified for cars, but a car engine intended only for cars. ^ WRITE FOR FREE COLOR CATALOG DEALER INQUIRIES INVITED BAVARIAN PRECISION PRODUCTS CO. • P.O. Box 6. 22 East Avenue · New Canaan. Conn. 06840 88 R/C MODEL BUILDER BUD NOSEN MODELS > INCORPORATED BOX 105, TWO HARBORS, MINNESOTA 55616 All kits feature all wood construction, fast assembly, huge rolled plans, assem bly instructions, machine and die cut parts, all necessary hardware and much, much more. Designed for .60 engines on up. Write for our illustrated catalog—50φ. Standoff Scale Formed ABS cowl K it - $119.95 3 o r 4 Channels Flys like tra iner K it $99 95 size Standoff scale 3 Channels K it $99 95 Channels No foam plastic K l! $79 95 Standoff scale 4 Channels required Kit- $129.95 1 13 size Standoff scale 4 Channels required Kit - $129.95► size Standoff scale Channels K it $139 95 1 /4 size Standoff scale Molded cowls Kit - $169.95 AUSTRALIA S W IT Z E R LA N D ----- — SOUTH AFRICA CANADA EK Loglctrol Australia B lue M ax OVERSEAS Radio Control World John Klassen Hobby Central 44 M acquarie Road Modellflug-Technik AG DISTRIBUTORS 202/4 Oceana House 400 Cuyler Street Lower Burg St. Earlwood 2206 Alte Landstrasse 122 Thunder Bay, Ontario . Sydney, A u stra lia CH-8800 Thalwil Switzerland C apetown 8001 So. A fric a With a little patience and careful align ment, well-centered holescan bedrilled in the toothpick. Of course, if you havea drill press or lathe, this job is much easier. HRE chassis kits are aerospace quality with aluminum parts anodized. They also have: ALUMINUM FRONT AXLE, DISC BRAKES for consistent braking, AERODYNAMIC WING for lowest drag, BALL or ROLLER BEARING CLUTCH for trouble-free operation, NYLON SPOKED WHEELS for appearance and life, POWER ADJUSTABLE REAR END, an HRE exclusive. M chassis kits for K&B 3.5cc engine have an 8mm TITANIUM REAR AXLE; more strength, less weight. Other HRE exclusives are: AIR PUMP FLYWHEELS, FRONT and REAR ROLL SUSPENSION kits, TECH MEMOS. F I G . 10 SEND 20ά (stamps OK) FOR BROCHURE WWII WHEEL (McHARD) HRE, 18276 Foxglove Way, Irvine, California 92715 Painting can be done using Floquil lacquers or Testor's flat black and silver diam eter of the O-ring to insure a good silver brake drum and wheel rim should enamels. For a quick, easy finish, I use snug fit. The semicircular groove in the be prepainted before assembly to give a black felt marker for the tires and perimeter of the wheel can be formed clean color line. The spokes can be thinned Wite-Out (typewriter correc using sandpaper wrapped around a painted silver aftergluingin place. Doug tion fluid) for the recessed hubs. One dowel. Before the wheel is painted, it McHard’s article in "Flying Scale Models advantage of a recessed hub is that it helps to rub epoxy in the groove to of WW-II" (available from R/C Model simplifies the painting job because the strengthen it. Builder) gives thedetailsconcerning this black paint can be applied right up to WW-II wheels are somewhat more style of wheel. the sharp corner, automatically produc work, but are worth the effort for larger ing a clean color line. Although not as models. Begin by making a recessed hub nice as a painted finish, it can beapplied wheel (figure 7). but make the recessed in a few minutes. portion somewhat deeper than usual. In making a series of wheels ranging Then install the toothpick or aluminum from 3/4 to 1-1/4 inches in diameter, the bearing, the rolled paper rim, and the weights ranged from 1/4 to 1/2gram per 1/16 square balsa spokes on the o u t pair. For super-light wheels, hollow- board side of the wheel and a cylindrical core designs or styrofoam can be used. balsa "brake d ru m ” on the inboard side And one final point: use a dust mask. (figure 10). The black tire surface and the Disposable Dust Masks from 3M are cheap and available at paint and hard ware stores. (ihu FIG . 8 Although the procedures may sound HIDDEN KEEPER somewhat involved, the actual time to LIGHTWEIGHT make a pair of wheels, once they are ready to be spun, is about 20 to 30 6) After the wheel has been spun to minutes. In a few hours, a good supply of SUPER the desired shape, finish it with a piece wheels in all shapes and sizes can be of fine sandpaper to remove scratches stockpiled for your future models. Good and tool marks and produce a satiny COVERITE luck! · smooth finish. Now the wheel can be STRONGER BY FAR removed from the Moto-Tool and the THAN ANY OTHER IRON bearing installed. For 1/32 and larger Power B oats. . Continued from page 52 ON. RED, WHITE. BLUE, landing gears, suitable aluminum tubing YELLOW, ORANGE, or a drilled toothpick bearing can be nitro in his outboard. On just methanol, ANTIQUE FABRIC. glued in place. However, for landing Dennis turned in a 2:09.53 for his best gears of .015 or .020 w ire used in Peanut time on the no-nitro day. The outboard and indoor models, the toothpick hub that was impressive on methanol be COVERITE j must be used by drilling it with short longed to contest director Bill Hornell. 420 Babylon Rd., Horsham, Pa. 19044 lengths of wire gripped in a pin-vise. Bill ran his “trick” bottomed Dumas 90 R/C MODEL BUILDER ___ k. SYSTEMS FEATURE SMOOTH OPEN GIMBAL ACTION WITH CLOSED DUST COVER SHIELDS RADIO CONTROL SYSTEMS TRIPLE TUNED FRONT END RECEIVERS ACCESSORY PACKAGE WITH TRAYS AND EXTRA WHEELS OR ARMS aero sport 9 III 2 m u ΠΣΕΞ si aero sport two J 9 " T i T K » “ '";.Γ *9“ *Tl«9" Aero Sport Three Systems Include: 3 channel Aero Sport Four Systems Include: 4 channel Aero Sport Six Systems Include: 4 channel Aero Sport Two Systems Include: 2 channel receiver, 4 channel transm itter, all Ni-Cads for receiver, C channel transm itter, all Ni-Cads for receiver. 2 channel transmitter, both for AA receiver. 3 channel transmitter, both for AA Alkaline battery operation (batteries not in both transmitter and receiver airborne, dual both transm itter 4 receiver airborne, dual charg Alkaline battery operation (batteries not in charger (charges both batteries at the same er (charges both sets of batteries at the same clu d ed )^ Aero SportNS-IC servos, dry airborne cluded)^ Aero SportNS-IC servos, dry airborne tim e),4 Aero Sport NS-IC servos, servo tray, ex time). 4 Aero Sport NS-IC servos, servo trays, battery box, switch harness, frequency fla9, ex battery box. switch harness, frequency flag, servo trays and full 1 ·0 day warranty. Choice tra servo wheels, instruction book, frequency extra servo wneeis. instruction book, frequency tra servo wheels and full 110 day warranty. flag and full 1 SO day warranty. 72 mHz only. 72 mHz o n ly . of 72 or 75 mHz. flag and full ISO day warranty. 72 mHz only. Hobby Shack takes particular pleasure in lowing you a choice of six different types to best knowing that we are offering the American modeler suit your needs. In fact all systems are shown in the the finest line up of radio systems and accessories at catalog with several servo options for the initial pur: real money saving economical prices. For the past chase. This year we have introduced our brand new seven years we have been contracting for our radio stick assembly giving you open gimbal action with a systems to be manufactured by the largest and best dust shield to keep the dirt out. When you select an radio maker in Japan. This has allowed us to keep Aero Sport System you‘re getting quality, dependa pace with the new electronic technology and get bility, up to date engineering design, and back up ser quality craftsmanship. For 1979 we have four sys vice and warrenty. That's the reason we have always tems, giving you a choice of four radios to choose sold so many radio systems each year and know that from, depending upon your needs and progression we have the best for 1979. in the radio control hobby. There's only one plote to get No one else that we know of as of this writing has a better two channel to offer you than our Aero Sport Two. Our two channel transmitter is an aluminum CHARGE IT ORDER BY MAIL vinyl covered case unlike all the other plastic cases. Hobb OR CALL US Only Aero Sport Two offers a triple tuned front end receiver the same as our other radio systems have. BANKAMBKARD S h a c k Area 714 Only the Aero Sport Two offers you three servo VISA OR 1848018480 BANDILIER BANDILIIR CIRCLE ftCQ Q P Q 0 f QQ1 types to select from when you make your purchase. MASTER CHARCi^ARGI FOUNTAIN VALLEY, 3 0 0 * ; CARDS FOUNTAIN VALLEY, jOO'jOOl We think the Aero Sport Two is the best two chan CALIF. 92708 nel you can buy at any price and our price is only Add $3.00 postage & handling $79.99. This year we have expanded our servos al California residents add 6% state sales tax *********************************** fiberglass Hotshot 21 to a 1:57.22 in one heat. This is only two seconds off the N.A.M.B.A. tunnel record established by Ed Fisher last year. Bill was turning a 7\U l3sa — PROPELLORS slightly cut J.G. Products G-22 prop and 23018 S NORMANDIE AVI TORRANCE CA 90S0? RHONE 213 S39-2313 was surfacing a half a blade. He really had that Hotshot 21 flying light on the water. And it goes w ithout saying that he did an exceptional job of keeping the boat CUSTOMIZED right on the buoys. SOME CONCLUSIONS No-nitro fuels can be made to work in model marine engines. In certain * 3 and 4 BLADED classes, especially the tunnel and hydro plane classes, the am ount of speed loss Size 18".- 20" and 22" Dia. in 6",-8" and 10" pitch comparing no-nitro to nitro isn’t as great These props are made to fit inside our 6" Dia. as I had thought it might be. In thedeep- spinner. vee classes, no-nitro fuel definitely Price $ 40.00 each. affects performance. Deep-vees seem to need that extra boost that nitro gives to Size 24".- 26" and 28" Dia. in 6",- 8" and 10" pitch make them really perform to their maxi- These props are made to fit our 634" Dia. spinner. mums. There is a great deal of talk $ 48.00 each. among model boaters in the Northwest to switching some of the classes over to n o -nitro fuels for the 1980 District 8 Points Races. It is possible to achieve greater per I n d i v i d u a l formance on no-nitro fuels by making some modifications to the engine head B l a d e s and timing. These changes are used by those who race the FAI pylon airplanes. Replaceable One person who was most interested in the results of the no-nitro race was John Price E. Brodbeck of K&B Manufacturing. I Extra blades - S 6.00 to S 10.00 each. called John to share our findings, and he said K&B would be looking into the * PAT. PEND. possibility of supplying model boaters ***************★******★★**♦■*■■*■ * * * * with factory parts that would improve 92 R/C MODEL BUILDER performance for engines running on methanol. We’ve Built the Case for What else can I do? I would encourage more clubs to consider following the lead of the Seattle Model Yacht Club Your Radio Control System and sponsor a no-nitro race. This type of event makes a great format for a club race. We need to have more people experimenting with running boats on no-nitro fuels. Try it. You might have to live with it sooner than you expected. WHERE IS ED FISHER? For the first time in about ten years, it appears that Ed Fisher will not win a model boat race in 1979. Ed, whopossibly has held more model boating records than anyone else in this country, has Single Case r turned his attentions to another type of boat racing. In August of last year, he Reg 549.95 was hired as the team manager for the Now $29.95 Circus Circus unlimited racing hydro plane. Bill Bennett, the person behind ' Π the Circus Circus casinos in Las Vegas and Reno, met Ed through model boat racing and offered Ed an opportunity to see how well he could manage a real unlimited hydroplane. Ed’s challenge is Double Case to unseat verteran racer Bill Muncey. Reg S69 95 Thus far in 1979, the Circus Circus team Only $39.95 has two seconds to Muncey. I hope to get together with Ed at the end of the 1979 unlim ited season and have him share some of his experience on the unlimited racing circuit. HOW WOULD YOU LIKE YOUR PICTURE IN R/C MODEL BUILDER? I’ll be glad to use pictures and in fo r mation about your model boating activi It makes sense to want the best in protection for ties right here in this column. Unfor that major part of your radio control investment. That’s tunately, I’m not going to be able to take your picture or write up your race why we designed highly durable, impact resistant, quality χ event. It’s not like I really wouldn’t like cases custom built to fit your radio equipment. to do thatfor you; I would, but I can’t. If our editor paid my travel expenses to Completely foam-lined for added protection e cover all the different races, he co u ld n ’t these lightweight cases are now afford the paper to print this fine piece specially priced at just $29.95 of model journalism. So, I’m going to stay up here in the Northwest corner of for a single radio system r ta»V> ^ ^ this land and keep encouraging you and $39.95 U. readers to send in photos and results to Torfor a double.aouDie. . *o *L · < » & < * * * be used. The address is: 6702 M t. Tacoma Drive. S.W., Tacoma, WA 98499. · jCW. ΛΡ. ^ \0' Pick a Slope . . Continued from page 43 0 ° ° TO ADDRESS earth, and a headwind. Folks up in BELOW Michigan slope the sand dunes along 7316 NEWTON AVENUE NO , MINNEAPOLIS. MN 55444 Phone (612) 566-9016 the edge of the lake; down in Dallas, they whistle back and forth across the face of a dirt-filled dam; out in Wyoming you have to settle for at most slope sites, directly, even if it doesn't look too I’ve soared for hours above the man on most days, is some degree of cross- impressive. You can slope a fresh grave, made humps and gullies of a garbage wind. Still, when scouting your home if the wind is just right. I’ve had two or dump! Contrary to what most thermal territory for a flyable slope, your first three-minute flights over piles of dirt fliers believe, the height of the slope consideration should be the direction of removed from basementsandswimming isn’t always a primary factor in its fly- the prevailing winds in the area. Don’t pools, although this isn’t the kind of ability; even its shape is secondary. In settle for a south-facing hill (or dam, or sloping I’d travel very far to get! And fact, only two things really m atter: 1) The levee, or embankment, or roadcut) if everyone who’s flown a SOAR Nats has direction of the wind relative to the your prevailing winds are southwesterly seen Mark Smith pull two, three, some slope face; and 2) The obstructions . .. you’ll only be asking for a lot of times five minutes out of the slope lift upw ind of the site. frustration and/or broken toys. When along the tree-line at the south edge of The wind direction on the face of a hill the wind direction varies more than 45° the Lewis University field ... it used to or ridge is critical. Obviously, a wind to either side of "straight on,” even be an annual event! hitting the slope “straight on” (i.e., at nationally-known slopes become almost Now here’s a tip about determining 90° to the face) is best. In real life this unflyable, or, at best, flyable only by the wind direction. The lip of a hill is the seldom happens, even at the famous experts, not the kind of place you want worst possible place to try to get a coastal sites . . . except, of course, on the to pioneer. So keep looking until you directional reading. No matter what days covered in magazine reports. What find something that faces the wind angle the wind strikes the face of a slope, OCTOBER 1979 93 wjrwjririiTwwwwirtiiMMrwJTwwwKKJMrw★ ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★■A·*****************,, * * + NEW MATH? NO// * * 2+2=1ΡΡΡ It's CASS ENGINEERING'S new 2 + 2 * Super Drive that equals one Potent Power Package! Available for most engines .25 through .91. Twin, horizont ally opposed, alternate firing smooths out power impulses for low vibration and long belt life. Reduction of 2:1 for large, high pitch props. Ball-bearing output shaft, tempered aluminum casting. DIMENSIONS OF UNIT SHOWN. USING The CASS 2+2 Super Drive will fit O.S. MAX .40 FSR A N Y power N EED !! ENGINES: L = 4 -3 /4 " Price: .25 thru .4 5 ...... $99.50 W = 6 -3 /4 " .50 thru .91 . . . . $109.50 H = 4 -3 /4 " /Engines not included) W t. less engines 1 3 -1/4 oz. If your dealer cannot supply, order direct CASS ENGINEERING, Box 420, Rutherford, N.J. 07070 ( 201) 438-2897 939-7766 it always seems to straighten out and roll fully. Well, if you can afford to be picky, across the lip at very nearly 90°. To get a On the other hand, we have a slope there are a few other points to look for. more accurate picture, check the move site here in Northern California, only A decent landing area, for one. Is the hill ment of the grass dow n low er on the fifteen miles from the ocean, that is (ridge, hump, lump, freeway overpass, face, or on top of the hill a hundred feet almost totally spoiled by a row of low etc.) flat enough on top for landings, or or so behind the lip. Better yet, walk out hills less than a mile upwind. When the will you have to land on its face, down in front of the slope and find out what w ind is exactly the proper velocity the below the lip? I’ve flown lots of good the wind is doing before it approaches lift is good at this site, even though the sites with only marginal landing zones. the hill. Keep in mind that the wind little ridge itself is only about 30-40 feet In fact, I can only remember half a dozen velocity is going to be much lower down high. But if the wind is either too light or or so where the landing zone wasn't in front of the slope than it is up on the too strong, the series of waves coming marginal. Typical is the west face of lip, for the lip is the venturi through off the upwind hills gets “ out of phase’’ “Green’s Peak.” a mountain in north which all of the air in front of the hill with our hill, and the air on the face eastern Arizona where the old ARSE must squeeze at high speed. w on’t even support a kite, much less the club of Albuquerque used to meet the So much for the importance of wind 6-8 ounce per square foot thermal ships soaring crew from Phoenix, for a week direction. The second major considera we like to fly there. For a site to be w orth end of horseplay and hamburgers tion in selecting a slope site is the terrain driving to, in the age of dollar-a-gallon (cooked over fires made with dried cow- upwind of the slope: what are the gasoline, it should be clear of upwind dung . . . and people ask w hy I’m a obstructions to a smooth wind-flow over obstructions. Even a single tree or vegetarian these days!). On Green’s the slope? Hills or trees or buildings building can spoil a small site, for every Peak, the trees begin about thirty feet directly upwind are bad news, especially obstruction casts a wind-shadow much back of the lip, and the trees are both if they are more than half the height of wider than itself . . . just as the wind- hard and high, so the big trick is to burn the slope. Anything that turbulates the shadow of a passing semi will swirl the off your momentum well below the lip, airflow before it reaches the slope is grass for dozens of feet beyond the then crab along the face parallel to the going to make your flying trickier and a edges of the roadway. hill and let the wind lift you over the lip lot less pleasant. That’s why the coastal OK, so you know of a few places in with only inches to spare. As soon as you sites are so w ell-know n: a few thousand your area that face the prevailing winds clear the lip you do a quick S-turn to get miles of flat ocean, relatively uniform in and are relatively free of upwind ob out of the lift and land right behind the its temperature, can iron the air out to structions. Surely a slope site can’t be lip and still flying parallel to it, usually such glassy-smoothness that any idiot that simple an affair? What are some of with about twice the groundspeed you can fly it. It takes a lot more skill and the secondary requirements for a good need, hoping to hit something soft (a imagination to fly inland sites success site .. . the icing on the cake? cow, another modeler) to kill off your m om entum . Probably the worst landing site I ever saw was on a hill down in central Cali SAVE $150 ON YOUR NEXT RADIO! fornia back in single-channel days (would you buy 1965?). The hill was Buy a Digital Commander Flit« smooth, grassy, a couple of hundred feet Pack Kit and Save Money with high, exactly perpendicular to the pre out Compromising Quality or vailing winds, and nearly half a mile ' A A Ms*· S & » Performance! long. Sounds idyllic, right? The draw back was that it was a true ridge, or “ hogback” ... it had a cross-section just Three Servo Options; Two Receiver Options; Kit Prices Start at $74.951 about like old Tut’s pyramid. The top of For details, send $1 for our the ridge was barely wide enough to latest catalog. (Add $.50 for drive a car across, and the back side fell 1st Class return and $1 hand away immediately, at about the same ling for any direct orders.) ACE K/(, Inc. angle as the face (see the drawing called (816) 584-7121 BOX 511D, HIGGINSVILLE, MO. 64037 “ Bad News Ridge” ). Result: a trem en dous, invisible rotor that formed right 94 R/C MODEL BUILDER K ra ft’s more control1, more fun, more value! The addition ot a three channel system to our highly popular Sport Series line gives you the extra control capability to make your modeling even more fun . . . and this three channel system costs only $149.95 (Sugg, retail price). It’s perfect for boats, gliders, and simple aircraft. The K P-3 AS, as are our two-channel sets, is top quality. Unlike our competition, we use five-pole servo motors instead of three for greater jr J accuracy and reliability. The system features plug-in receiver and transmitter crystals on the 27 MHz band, and for the receiver only, on l· the 72 MHz frequency band. I The receiver antenna plugs in, and two special short length J antennas are available for use in cars, boats, and small I airplanes. The system is designed to use pencell type I alkaline batteries, but can be easily converted without I modification to rechargeable nickel cadmium batteries with / our conversion kits. This kit contains rechargeable / transmitter and receiver battery packs, charger, and a I switch harness with a built-in charge receptacle. I (Sugg, retail price, $49.95). The KP-3AS system I includes: transmitter, receiver, two servos, I ; battery cases, and switch harness. /, The KP-3AS is a quality high reliability radio control system backed by Kraft’s famous reputation for service. The purchaser is protected by a full one-year limited warranty. 450 W. California Ave., P.O. Box 1268 Vista, California 92083. (714) 724-7146 (These were 500-square-inch, 20-ounce rules that apply to thermal flying apply airplanes, remember. Single-channel to slope soaring as well. Always land into had its drawbacks, but at least it was the wind whenever possible, to mini light!) mize your groundspeed. Land in the This kind of ridge shape is extreme, softest grass (sand, dirt, bushes,etc.) you PRODUCTS but on even the best of hills you can can find, as far as possible from trees and WORLD WIDE MARKETING expect some kind of turbulence just other obstacles that cast dangerous FOR D & R AND OTHER FINE PRODUCTS behind the lip. How much turbulence wind-shadows. Remember, it’s the BULKHEAD SWITCH MOUNT 98^ you get depends a lot on the shape of ground, not the air. that makes old M O U N T S O N : the lip: the sharper the lip. the worse the airplanes out of new ones, so pick your Bulkhead of airplane. rotor is likely to be (see drawings). So if landing areas w ith care. If a hill looks Floor of car. Inside of waterproof you can afford to be picky, choose a hill flyable in all other respects, but lacks a boat boxes. with a gentle lip. I’veseen sharp volcanic safe landing area either at the top or the ... Or any place you mesas in New M exico and Colorado bottom, then you’d probably do well to d e s ire . Push-rod can go in any where the lip turbulence extended 200 look for another site. Takeoffs, as my of three directions. feet or more downwind across their full-scale flight instructor used to say, Complete with mounting screws. perfectly flat and innocent-looking are optional, but landings are man 3501-B West Moore St., Santa Ana, tops; to get a safe landing required a datory. Phone (714) 557-1453 CA 92704 good long downwind hike. Another secondary consideration Of course, the possibility of landing when picking and choosing among above the top of the ridge. A real out on the flats in front of the hill should slope sites is the area downwind of the grinder, this rotor never once let any never be discounted — especially if site. Look it over carefully before you body off with just a warning: if it caught that’s where your car is parked! But even launch. This is where your model is you, you might as well turn off your if you park and fly from the top, you may going to go, if you should happen to transmitter, shut your eyes, and start find it worth the hike to make your first 1) let your batteries run down, 2) try to designing your next sailplane. landings in the comparatively dead air fly in too strong a wind, or 3) go to sleep just in front of the base o f the slope. at the wheel. A friend of mine just The lift out in front of this ridge was Depth perception can give you fits if the recently lost a plane in a heavily-forested always good, sometimes great. But the hill is too high, but you’ll find the area behind one of our local slope sites. landings? Well, we tried to make as few airplane’s shadow a big help. As the Both he and another flier saw it go as possible. With no elevator control, shadow gets closer and closer to the dow n, but two weekends of searching the best bet was to drive straight out plane you know that the plane is getting failed to find it. Years ago I lost a ship the over the valley until you were well in closer and closer to the ground, until same way, in a virtual Sahara of w in d front of the lift zone,spin down to 1/3or finally plane, shadow and earth all come blown sand that stretches for miles 1/2 the hill height, return to the hill and together with a bang! Good luck on the behind the big coastal dunes at Sunset work back and forth up the face until climb down ... I hope she's all in one Beach, down on Monterey Bay. Four of you could catch the plane as it flew by. piece, down there! us spent hours trudging through hot, A fter a few misses, we often just turned blowing sand, goggles on, handker straight into the hill and let her go bonk. The same common-sense landing chiefs over our mouths, hoping to spot a red wing in a trackless world where the visibility was never more than fifteen feet. We never did. NEXT M O N TH : Basic slope-soaring techniques: launching, turning, ther mals, turbulence areas, wave lift, con vection currents . . . everything but a bigger rudder to get you started flying slope. · Scram ble...... Continued from page 32 judges were hard pressed to find some thing to ding it on. In both color and markings. Earl’s model rated 100Ύ. fidel ity and accuracy. His paints either came right out of the airplane owner’s bucket or were mixed to the same formula. Such attention to detail came to be an expensive proposition. For the blue background in the Swedish national markings, all Earl needed was a couple of spoonfuls of paint. But the owners didn't have any left over. So, for that couple spoonfuls, Earl had to have a quart of the special color specially mixed. He figures he’s got enough “ Swedish blue” left over to repaint his old car too! First place in A M A Scale went to Larry Sutherland’s Proctor Nieuport, a World War I legend. Chuck Fuller copped second place with own design and fabrication of a one-tenth scale Convair XP-81, an experim ental fighter of the late WW-II years. Dave Lovitt’s beauti ful scratch-built P-26A of the inter-war years placed third after a disastrous (but 96 R/C MODEL BUILDER Ě á p r n h p p ■ Ě Ě n M a r ^ 1/12 Scale National Winning Electric R/C Race Cars R/C ELECTRIC Γ #264 SCHKEE 6 CELL ASSEMBLED ELECTRIC R/C ELECTRIC R/C CARS LESS RADIO RACE CAR LESS RADIO WITH WITH ELECTRONIC RACING SPEED CONTROLLER CAR SPEED Designed as a full race top of the line CONTROLLERS SPEED CONTROL ROAR legal modified race car for those who have their own radio. I #273 CHALLENGER 6 CELL The JoMac 487 and 486 fully proportional modular forward speed controls have ASSEMBLED BASIC R/C RACE Complete with #486 proportional race been designed to control the speed of CAR WITH SPEED CONTROL speed control, modified 05 race motor, electric motor driven model cars, boats, LESS RADIO. 6 Nicad batteries, battery charge cord, airplanes and similar models. The power Lexan Jerobee chassis. for the motor can be 3-7 series connected Designed as an assembled low cost Many accessories and bodies available 1.2 volt Nicad battery cells. These race car lor those who wish to use their controllers are made to plug in and operate with most positive pulse radio own radio but prefer the smooth control Features Include: control systems. Versatile battery power of an electronic throttle. arrangement allows your complete ' Motor mounts in front or behind axle. system to be powered from one battery ROAR stock legal. Many accessories * #740 mounting plate for radio servos, pack if desired. and bodies available. speed control, battery, antenna, and switch. * National winning #486 race proportional speed control with adjustable dynamic brake and 24 amp high torque adjustable output. * Lexan control flex chassis complete with bumper. * Assembled charge cord for 15 minute fast charge (works from 12 volt source). Replaces and is better than * Adjustable independent front servo/resistor assemblies in these ways: suspension w/Ackerman steering. 1) Less expensive than servo alone. * Modified rewound (32 turns of 22 2) More reliable than resistor. gauge) .05 motor balanced and 3) Truer proportional speed. epoxied for maximum speed and 4) Faster reaction time by at least .3 reliability — ROAR modified legal. seconds going from off to high “ Painted Lexan Schkee Can Am body. speed and from high to off ' #603 foam rear tires full legal 1 'h" Features Include: because you don't wait for the wide and set screw wheels. servo to travel. * #740 shaker plate mounting plate for * Heavy duty hardened round rear axle. 5) Smaller, more compact. radio, servos, speed control, battery, ■ 6 sealed fast charge G.E. Nicad 6) Lighter in weight. antenna, and switch. batteries wired and dip protected. 7) Easier to mount. * #487 Electronic Proportional 12 Amp * #621 ball bearing front wheels and Specifications: Speed Control #605 foam front tires. * High strength molded controlled flex * Rear axle ball bearing. Positive Pulse Input: 1.0 - 1.7 ms chassis * Mylar decal sheet. (adjustable) ' Assembled charge cord for 15 minute * 2 cells disconnect for 4 cell operation. Control Circuitry Supply: 4 Series fast charge (works from 12 volt * Speed: 34 MPH 56 KPH connected AA or Nicad cells (4-6 volts). source). Motor Supply: 3 - 7 Series connected ' Adjustable independent front Average Stall Current: 6 cells (05 motor) suspension w/Ackerman steering. = 487/15 amp 486/25 amp. * .05 ROAR legal stock motor. #487 Modular Electronic Speed * Cycolac molded body, no painting or Controller 12 Amp Output. This trimming necessary. unit is similar to the controller on * Molded long wearing front tires & JoMac #407 radio system. sponge rear tires. #486 Modular Electronic Speed * Heavy duty hex rear axle. Controller 24 Amp Output * 6 sealed fast charge G.E. Nicad w/Adjustable torque and brake. batteries wired & dip protected. This unit is similar to the controller * Mylar decal sheet. on JoMac #406 radio system that * 2 cell disconnect for 4 cell operation. has won five (5) national Speed: 30 MPH 50 KPH championship electric races. For Complete Information, Send $1.00 to: JoMac Products Inc., 1 2702 N.E. 124th St., Kirkland, Washington 98033 (206) 823-2303 Scramble AMA Grand Champion), Dick does it fly! It gets up to 500 feet (the Enos’ new and beautiful Westland 18-inch span gets pretty small up there), new releases- Whirlwind, and Ron Grigsby's crippled flies five minutes on power, and is stable Biicker C-47. (It had been "repaired but not and docile. It is an ideal beginner’s JUNGMEISTER certified" following last year's hard plane, or a relaxing plane for the expert. 11/2** radio control landing.) Enos, of Santa M aria, California, It also thermals like crazy! That was s ca le continues to develop into a fine and unexpected, since the wing loading is innovative modeler, and his newest high (120 sq. in., 16 o z ./ sq. ft. loading). offering, the Westland Whirlwind, is a All I can figure out is that thermals reflection of his attention to detail. d o n ’t care too much about w ing loading 33“ wingspan, Spectator participation was down on these littleones, they are so light they 049 pow er, $18.95 over previous years, most likely because go up like feathers! I had twenty minutes of the gasoline situation. It was the same on one thermal with no sign of it coming great for schoolyard scale. weekend that Northern California gas down, but I don’t like to push the time station operators scheduled their four- lim it on the 100 ma receiver pack. So, I TRAVEL AIR day walkout. Although the majority of reluctantly spun it down and landed. It is * 6 0 0 0 * stations along the interstate highways alsq a delight on windy days; it charges were operating, there were few others into wind that discourages larger planes, pum ping gas. So. the H ill C ountry Flyers with no problem at all. That is a neat 020 or rubber and contestants are indebted to Irv combination . . . wind handling ability pow er herb clukey Perch’s generous sharing of the precious plus thermal ability. The only other 36 s p a n fuel. planes I have that also show this ability 1-2 chan nel RIC or free flight. S'*. 95 As this is being written, there is still are (by coincidence?) also 020 planes, confusion nationwide as to the length the Request and the Schoolboy. The and severity of the gas situation. But Cub is right in there with them, not bad "America adjusts,” and no doubt the for a foam ready-to-fly plane! I recom Hill Country Flyers, whose charter is to mend it. Let me know your results if you promote scale modeling through four try it. Until next time, fly high with contests a year, will find inventive ways electricity! · 23"wingsp. to continue to provide scale modelers a U ll for rubber proper forum for their talents. · C 0 2 pow ei available soon. Peanut...... Continued from page 59 SEE YOUR send 25« for Electric...... Continued from page 45 will have to be spliced. It’s best to make a DEALER NOW c a ta lo g little more than half a wing outline the plastic firewall and mounted the twice. Also, three rather than two sticks FLYLINE MODELS, INC. Astro 020 with a rolled file card tube. I were used on the wing on the model in rue do«· AvtNtx ,· « «AIWA! VIAOINIA JJO> installed my trusty Cannon radio with a the photos. It is showing a little sagging single Bantam Midget servo and a 100 between the ribs, so four sticks are typical) nose-over on landing. mah fast-charge receiver pack. The all- recommended for future models. The In Sport Scale. John Lockwood flew up flying weight was 13-1/2 ounces, as fourth stick can be run inside the others his aging Vought F4U to yet another compared to the gas version weight of from the tip rib inboard to the center. It victory. The competition here was the 12-1/2 ounces (the gas version had a won’t be needed at the tip where the closest in Hill Country history, because heavier radio). I did use four GE AA ni- bend is sharper, and besides, it would Jim Meister’s P-47 hung right on Lock cds to power the Astro 020 to save make it more difficult to achieve the tip w ood’s tail the w hole weekend. It was a weight (about an ounce less than the bend. see-saw battle with barely 1/2 point stock Astro pack). The photos show how After the laminations are dry, they can separating the two competitors. the servo is mounted to the fuselageside be separated from the forms and pinned w ith double-sided foam tape. This is set down over the plans. Use care in remov The third and fourth placings were up with the usual push-push switch, this ing the outlines from the forms. Some equally tight, with Doc Keith's scratch- time with full right activating the switch, times in spite of the wax coating on the built N orthrop A-17 barely squeeking by since the plane is flow n rudder only. This outlines of the forms they will stick a Tom M inger's N2S-5 trainer (a Sterling works quite well; the rudder can be little. If you are impatient getting them kit). Here. too. 1/2 point made the "flicked” quickly enough so the plane is off, you may find yourself starting a new difference. not affected. Just give a quick right, then set. Now put the spars and ribs in place Static Scale entries placing one, two. left, then neutral, and the plane never in the tail structure. Put in the lower ribs and three wereEarl Thompson’s scratch- knows about it! and then cement the wing spar in place built Goodyear FG-1 (1977’s WW-II Then, tothe field,charge,and fly! And on top of the rib bottoms. Take the SPITFIRE Still the best combination ol looks & performance you can buy Nobody ever designed a more elegant ship than the Spitfire The model flies superbly and has won countless standoff scale contests. The standard kit builds into a Mk. 9 Plan includes details for other Marks, like the beautiful Mk. 22. Kit features: Machined and diecut balsa, formed LG. nylon fittings, metal parts & mouldings. Two full-size plans complete radio & retract gear installation shown Isometric diagram & illustrated instructions make building easy and fun Six-color accurate decals Span: 65”. 2657 NE 188th Street Area 714 Sq ”, 4 to 6 channel, Engine: .40 to .60 Miami, Florida 33180 Telephone 935-1436 98 R/C MODEL BUILDER sliced top rib caps and trim them to fit. then cement them in place on top of the ENGLAND'S FINEST for rib bottoms and the spar. Add a piece of AMERICAN MODELERS 1/20 square balsa on top of the wing leading edge to provide the extra depth from necessary to get the correct wing airfoil at the leading edge. While the surface assemblies are drying completely, start the fuselage by building two fuselage sides directly over the plan. Except at the rear m otor peg location, where a 3/16-inch wide stick is used, all the uprights and longerons are HUNTSMAN 31 Scale high speed made from 1/20 square balsa. The fuse lage sides forward of the front door are offshore cruiser by made from 1/20 sheet balsa. When the Fairy. Deep-V hull. sides are dry they are removed from (he plan and separated by carefully sliding a thin razor blade between them. Cement the sides together at the very rear end, #MA-104 S54.95 1/11 scale, 3 4' all wood kit. and using the top view as a guide, cut #MA-107 $89.95 1/11 scale, 3 4 ’ 'glass hull kit. and install the 1/20 square balsa cross #MA-103 $94.95 1 /8 scale. 46' 'a ll wood kit. pieces. Add the one triangular front form er and then the 1/32sheet balsa top and bottom forward covering. The grain of the bottom covering should go cross wise to the fuselage. The top covering forward of the windshield should have K.D. PERKASA its grain lengthwise to the fuselage and $132.95 will be in two pieces joined on the Scale Gas Turbine fuselage centerline. Attack Craft Used A smooth, accurate structure is very by Many Navies important if a smooth covering is to be obtained. This requires a lot of careful #MA-108 sandpaper wo'k. This is especially true with the thin laminated surface out lines. Sand the leading and trailing 49-1 /2 " long, 1124 scale. Fiberglass hull. Diecut edges to the proper cross section. Don't plyw ood superstructure. hurry. Use a fine sandpaper, such as 320 wet-or-dry, or even finer. Coarser paper will tend to catch on the outlines and AERONCA tend to pull the structures apart. CHAMPION The nose block is the basic engine $164.95 crankcase with a backing block that fits y snugly into the front end of the fuse 1/4-Scale lage. A small Peck-Polymers nylon thrust 105" Span bearing is used and five of the small ÆMA-204 Williams Brothers cylinders are also used. For simulated cylinder heads, use black 000 size snap fasteners (dress snaps). Includes m otor m ount, tank, and much hardware. A ll Covering the model follows standard MORE COMING!! wood costruction, with die practice. Use lightw eight tissue. Each AVAILABLE FROM MANY LOCAL HOBBY DEALERS cutting and sawing. For .60 surface can be covered with a single or Direct (outside California) if your dealer doesn't stock. and larger engines. sheet for each side. You may find it Add 5% handling and U.P. charge. No C.O.D. please. necessary to cover the wing top with California Hobby Dist. (Since 1935), 415 S. Palm Ave., Alhambra, CA 91803 several pieces, but it was accomplished on the model in the photos with just one. added. We used white tissue for the loop of 3/32 rubber for power. Have fun Only one Lublin R-XII was ever built, body and tail surfaces, and a pale yellow with your Lublin. It's a model of a Polish so there is only one accurate color for the wing. The top and bottom of the airplane that certainly was as modern as scheme. Bill Hannan and I spent quite a fuselage is red. any in the w orld in its day (1931). · bit of time trying to translate the color scheme from Polish into English. We are Wing lettering, and the thing that sure that the fuselage top and bottom looks like a grasshopper (but translates Hannan...... Continued from page 50 and front on the sides is red. The side as "half a horse" .. . maybe horsefly?) is pattern is as shown. The surfaces also also red. Cylinders, tires, and moving So you see, modelers have unusual have red trim as modeled. The rest of the surface outlines are black. The engine ‘‘fringe benefits.” We are regarded airplane is described as "beige," al crankcase was painted flat steel. All more or less universally as “ some kind of though the wing may also be left the struts were painted shiny red except the nuts” or "children who have not grown color of plywood. What I suspect is that upper part of the vertical landing gear up.” And yet, upon closer examination, the original airplane was covered w ith strut. we can count ourselves fortunate. The linen cloth and clear doped. The ply My model came out just a little bit tail fact that our enthusiasm for our hobby wood wing covering would also have light (nose heavy) with the plastic pro can survive throughout our lifetime is in been covered with linen and so would peller. Ballasted so that it balanced just itself a precious something that more have a slightly different color than the level when supported by the wing tips at “ normal" citizens may never experi rest of the fabric. Then the red trim was the spar, it flew very well with a single ence. Continuity in the midst of a OCTOBER 1979 99 IN STOCK FOR IMMEDIATE SHIPMENT Eventually someone noticed that he CUSTOM TUNED ENGINES never drank any, yet kept replenishing AND COMPETITION QUADRAS his cup w ith the steaming liquid. At last QUADRA REPAIR - $10.00 plus perts he was found out; Garami was gener ACCESSORIES ZINGER & TOP FLITE Props - 10% OFF! ating his own thermals! The question arose as to scale models. Specialists in standard Jim Masaar's ERCOUPE KIT - $196.00 Evidently Louis built relatively few, but or throttled Cox .049/. 051 BARKLEY'S TIGER MOTH- $249.95 CONCEPT'S BIG FLEET KIT- $179.95* did try his hand at them. The only and Rossi .15 anginas, (* 6" Du-Bro whls., a $15.96 value. published plan of a Garami scale model parts Λ quality racing products. FREE with kits bought from us) in John Pond's extensive list is for a For detailed information, 1/4-SCALE PLANS (for Quadra) Flying Aces magazine Brown B-3of 1936. sand 15 c stamp to: STEARMAN BIPE, ERCOUPE REALLY HOT PIZZA $2 0 .0 0 par eat. Speaking of heat, an Associated Press Kustom Kraftsmanship 24-Hour Service. .. Add $ 2 0 0 postege. news release mentions a rather unique Send Benk Check or M oney Order to: use for a surplus Caravel jet aircraft. It P.O. Box 2699 JIM MESSER'S seems that an Italian restaurant owner Laguna Hills, CA 92653 QUALITY MODEL PRODUCTS plans to convert it into a pizza parlor! (714) 830-5162 106 Villey View Dr., H O W TRUE Allegany, NY 14706 A line from Commander H.V. Rowley, published in the December 23, 1960 are females. We recently had occasion The Aeroplane and Astronautics seems A.M.P. - Specialist in Vintage Aaro prod to order three aero books from the equally applicable to model theory; "As uct! and all small models. Smithsonian Institution. One was en Confucius said. 'Let not the fog of mathematics obscure the shining light of WE CARRY: Vintage Aero. Flyline Models, titled “ United Stales W omen in Aviation Micro-X, R/N Models. Classic Models. SIC. through World War I.” The other two genius.’ ” Hi-Flier, Peck-Polymers, F.H. Spokes. VL were "Aeronca C-2" and "The Wright WORDS TO LIVE BY Products. Williams Bros, plus SHARK and Brothers. Heirs of Prometheus.’’ We "The more you learn about model TE LC O CO2 engines. would unhesitatingly endorse all three, building the more you find out you COMPLETE ACCESSORIES: Japanese tis incidentally. But the strange thing is lhat don’t know." Granger Williams. sue in silver, black & colors, imported rub ihe book devoted to w om en, w hich was GIANT STEP BACKWARD ber, props 8> accessories, Megow, Continen tal & Ideal replica kits, books. Peanut balsa, ordered separately, arrived almost im According to Paul Steele, Roscoe. plans, and more! mediately. probably within a week or California was named after Roscoe less. Bui the two more masculine ori Turner, who kept an aircraft there. CATALOG $1 -THIRD CLASS RETURN. 56 pages of the finest models & supplies; in ented books, which were ordered on Unfortunately, during the 1950s or so. cludes FREE Peanut plane plan. the very same day. did not arrive until the townspeople changed the name much later. Can there be an efficiency from Roscoe to Sun Valley. Pity. Send S.A.S.E. for current price list. message here somewhere? TUT, TUT! AIRCRAFT MODEL PRODUCTS LOUIS GARAMI REMEMBERED Carl Hatrak gave us a copy of the TWA Skyliner publication, in which it isstated BOX 318, SCITUATE, MASS 02066 Quite some time ago we devoted attention lo one of the most remarkable that the Smithsonian’s National Air & seemingly out-of-control world. and innovative modelers ever. Louis Space Museum in Washington. D.C. outpulls every other attraction, includ BUT REGARDING WOMEN Garami. In a recent conversation with ing the Tutankhamen exhibit. We could not leave the above less- Walt Schroder a humorous reminder of than-favorable reference to Women’s Louis surfaced: It seems that Garami was SCALE NEWS AND VIEWS Lib go uncounterbalanced, and be always brewing hot coffee during indoor One of the most delightfully different newsletters we receive is that of the though! male chauvinistic. On the model meets and inevitably carried a contrary, many of our favorite people large cup of same around with him. Flightmasters scale club. Edited by Bill Warner, the publication features rare 3-views, construction plans, sketches, Λ jokes, puzzles, advice and various other AUTHORIZED DISTRIBUTOR FOR SCHLUTER surprises. Artwork is supplied by such R/C HELICOPTERS AND PARTS stalwarts as George james. Mik Mikkel- IN THESE STATES: son, Ken Johnson, Alex Toth. Bill Featuring: Noonan. Christian and J.F. Frugoli. and ALABÄ1 CC, Leonardo Pisana. If y o u ’d like to share in this modeling madness for a full year, AFTKftNSAS DS-22 ILLIN O IS simply send $9 for an associate member GAZELLE ship or spring ten bucks for a full- INDIANA HE LI BABY fledged membership, to Phyllis Warner. IOWA \ , __ SUPERBABY 423-C San Vicente Blvd., Santa M onica. KEN AND CA 90402. M ICHIG AN HE LI BOY QUOTE OF THE M O NTH MISSOURI "If Chance Vought had flown my MISSISSIPPI Redhead’ racer, they never would have built the Corsair!" Gordon Israel. OHIO AND ANOTHER PENNSYLVANIA An old-time Curtiss Pusher pilot was TENNESSEE offered a chance to visit the cockpit of a TEXAS modern jet. His reaction? “ There are V IR G IN IA only two things I recognize in here .. . WISCONSIN my fe e t!” S.C. MODELER AND SPEAKING OF CURTISS Ä H O B B Y S H O P Frank T. Courtney, who worked close DEALER INQUIRIES Helicopter·; Plane·; Cars Boats Radios ly w ith the firm , assures us that Glenn INVITED Parts Inr RC Hobbiests 1999 L a rkin Avenue. Elgin. Illinois 60120 Curtiss made m ore money in Florida real 312-697-3737 estate than he ever did in aircraft manu facturing! 100 R/C MODEL BUILDER Semi-big fun scale Fokker D VII Quick build up Kit OL781 $97.50 FOKKER D-VII: Engines .60 size Wing span 72” Wing area 1488 sq. in. Weight 10 lbs. 4-channel radio required Quick build up Kit OL792 $119.50 SOPWITHPUP: Engines .60 size Wing span 67 %" Wing area 1586 sq. in. Weight 10 lbs. 4-channel radio required KIT FEATURES: 2 full sized rolled plans See your dealer or order direct step by step construction manual postpaid with photographs Hardware package includes; Prototypes flew g re a t w ith a K&B .61 quality die stamped balsa parts aluminum motor mounts, and 14-4 prop. machine cut hardwood parts pinned hinges, snap links, Dealer and distributor inquiries machine cut and pre-sanded control horns, nylon bolts, invited plywood parts landing gear strap, socket head preformed balsa blocks bolts and Pind nuts, plus all preformed leading and trailing necessary fittings. edges preformed landing gear and cabanes heavy duty one p ie ce ABS cow l Accessories included: 5 ' scale wheels Scale m achine guns Scale plot Seif adhesive decals ANEW ERA PUBLICATION powered with the trusty Rolls-Royce PECK’S MODEL MENAGERIE AEROBATIC AIRPLANES Merlin engine. PEANUT SCALE KITS $ 3 .9 5 BY ROB'T. C. MORRISON 48 PAGES ------5S PHOTOS B-r-r-r. . .b-r-r-r. . . B-R-O-O-O-MM P IIT IN P O l IB DETAILED DRAWINGS . . . the Merlin growls into action and SCALE DATA SOFT COVER Catapult Directing Officer Flett takes up G IPSY MOTH his position, armed with two flags, one only S3.SS p lu s socfc postage green, one red. The Royal Navy Tor pedoman makes last minute checks of PIPIi J3 CUB his sixteen rockets fitted in the base of Α Ν Ο Μ Α SON FOR ANYONE the trolley onto which the Hurricane is TURBULENT FASCINATED BY AIRPLANES poised . . . the RAF radar operators M USTAN G close up their compartment on deck MI1ES beside the foremast . . . adjacent to the COMPLETE CATALOG $ 1 0 0 radar room is the foam firefighting GUIDC TO RU&8EB MOOCL SUPPLIES « equipment station from which emerges W Can't ignore This/ a long length of armored hose con nected up to the eight-foot nozzle Ptck-PHymtrs P O BOX 3498-MB LA MISA. CALIF 93041 48600 MC KENZIE HWY. which (hopefully) would not need to be PHONE (714 469-B675 or (7141 443-4636______J VIDA, OREGON 97488 sprayed around by the ship’s fireman (your humble scribe) if all went well. "EMPIRE DELL” plunges along at A u t h o r i z e d FA CTOR Y A UTHORIZED SER VICE twelve knots . . . bow pointed straight into wind . . . C.D.O. Flett holds up his FOR ALL OF THE FOLLOWING BRANDS • R a d i o green flag . . . the pilot settles himself lightly into the cockpit and raises his arm Cannon Cirrui EK Logictrot in the ready signal . . . "Rockets OK” Pro L in · · Mathes* RS* Micro Avionics « C o n t r o l reports the Torpedoman. The Hurri Royal Orbit D & D World Engine* cane’s engine noise rises to a high S im prop Kraft* Jo Mac s e r v i c e crescendo . . . Flett drops the green flag •ALSO WARRANTY SERVICE and raises his red flag . . . all is ready... B-R-O-O-MM. . . Captain McKinnon EXPERT SERVICE ON ALL BRANDS watches the bow's rise and fall on the swell. . . judging the proper moment he Don McCarthy « Factory trained technicians with over hits the rocket button. Flames and 15 years in Radio Control Electronics. smoke and red-hot cinders surge aft from the trolley ... at first, no move ment, then fasterand faster with screech Hours: Closed Sun & Mon; Tues - 10 am -8 pm; W ed-Fri -10 am-β pm; Sat - 10 am -2 pm of metal wheels on metal rails . . . the (714)639-8886 915 N. MAIN ST., ORANGE, CALIFORNIA 92667 sickening THUD as the trolley hits the slops . . . the Hurricane shoots forward and sinks from sight!. . . we rush to the J.D. GILLIES TRAVELS appointed duties for launching Sea bulwarks and gaze anxiously round the THROUGH TIME AND SPACE Hurricane M k.lA P5209 from the cata bow to see P5209 apparently just skim From the "Scottish Air News," Febru pult perched atop the fo’c ’sle head. Pilot ming the wavetops . . . then, trium ary 1979, courtesy oř Alan Reid we Officer Saunders. RAF(Rhodesia)lowers phantly, climbing up and away, banking present a first-hand recollection of himself into the Hurricane's cockpit, to starboard, clawing for altitude to World War II action, written by Doug assisted by the RAF fitter and rigger. search and destroy the Condor FW200. Gillies: Flight Control Officer Lt. Vickers. R.N., Many months of hard training by all (Eastern Atlantic. 8th March. 7942) establishes himself at the ship-to-aircraft members of the team has resulted in this K-A-A-WAUK . . . K-A-A-WAUK . . . radio. Captain H. McKinnon takes over adrenalin-pumping climax, for pilot K-A-A-WAUK . . . klaxon hooters sound the ship's con; this veteran seadog has most of all. It is only nine months since the "aircraft launch" signal on board seen much action in three years of war at the first successful rocket-launched Sea- Catapult Armed Merchantman "EM sea. but this present escapade is differ Hurricane flew from the CAM-Ship PIRE DELL." As the ship noses into the ent to all others: his merchant ship has "EMPIRE RAINBOW” on the Clyde in heavy Atlantic swell various members of been fitted with a new attack weapon ju n e 1941. the crew scramble rapidly to their armed with eight machine guns and And what of P5209’s mother-ship, D A TE R E C O . SOCIETY OF ANTIQUE MODELERS MEMBERSHIP APPLICATION NO. ______DO NOT W R ITE IN TH IS SPACE I hereby make application for individual memberahip in tha Society of Antique Modelen. N iU F _ BIRTH DATE YEARS MODELING ADDRESS C IT Y _ STATE 7IP Please check if you belong to any of the following: Note: Membership includes 15% discount on one year M ODEL B U ILD E R Magazine subscription. Give S. A . M. No. wAten subscribing. A M A NO Enclose Membership Dues of $5.00 and send to: Society of Antique Modelers u « e a NO 1347 Superior Avenue Whiting, Indians 46394 SAM CHAPTFR NO. In making this application for membership to the Society of Antique Modelers, I agree to abide by the rules set by the Society and realize that the goals of S. A. M. end the Old Timers movement are to encourage participation above competition and is dedicated to the preservation end reproduction of vintage model aircraft. 1 0 2 R/C MODEL BUILDER "EMPIRE DELL"? She was torpedoed r eight weeks after "Sandy" Saunders’ epic slingshot takeoff: the ship sank in deep water. R.I.P. old friend, at 53.00'N, When you think retracts... 29.57'W. SIGN OFF Diplomacy is telling the Contest Director he is “open-minded” rather THINK than that he has "holes in his head.” · Sailing...... Continued from page 35 Hogensen. To this roster we may now add the name of ]ohn Hanks of Sparks, R O M A IR Nevada. John has provided the lines for a 50/800 boat in the modern configura tion with a 9-inch beam and 14-1/4 lb. displacement. The design shows the double-ended theme so successful in the EPIC. The U-shaped sections are reminiscent of the WIND presented in Model Builder a few years ago. We also * STANDARD MAINS ' PLAT MOUNTED Reversible-Inboard or outboard cylinders NOSE GEAR see the reduction in aft freeboard just seen in the BONE series. A 7-pound bulb is used on the prototype, as well as Futaba 3-channel R/C and a Vortex SC-3 winch. The mast on John’s boat is 5/8- inch aluminum tubing. Standard BINGO rig is used. Skippers interested in further details or later developments of this design should contact John Hanks at 5185 O etting Lane, Sparks, NV89431. M y hat’s off to John for this contribution to our sport and to R/C MB's editor for making the plans available. This columnist is readying for a major relocation at this writing. We will be moving everything cross-country to Seattle, Washington, to take up a new job and set up the typewriter, sail cutting table and sewing machine. I’ll answer questions accompanied by a stamped, self-addressed envelope to Rod Carr, 4115 172nd Ave. N.E., Red HAND VALVE m ond, WA 98052. · COLOR CODED HOOK UP TUBING Soaring...... Continued from page 42 OTHER MODELS AVAILABLE: •F.A.I. MAINS Cylinder Outboard — Not lUvertibJ· M AINS fo r PLATT FW 190-09 - with J/H " Preformed Wir· through tight loops and slow rolls ... an 90 ROTATION MAINS for P-40 Tomohawk or F4U Cortair unusual sight fo r a scale sailplane. Sure it •HEAVY 3/ 1S " STRUTS on »podol ordor only. would be nice to have the instructions in English, but this isn't necessary for the ROM AIR-CHOICE OF CHAMPIONS experienced model builder. Neverthe less, Murph managed to obtain an ΗΗΠΜ © RHOMPRDDUCIS MANUFACTURING CORP. English translation from a friend. He estimates spending some 40 hours 924 65th Street, Brooklyn, New York 11219 in building this model (from opening the box to off-the-ground). Overall the Ornith measures 139 inches in span, 55 tional repertoire of maneuvers, such as but it’s so light! Naturally, there’s no inches in length, with a wing area of 935 sideslip through cross-control. Murph rule against adding ballast, and John’s square inches. It weighs in at five pounds arranged the radio installation so that going to take full advantage of this. At (the specs call for all-up weight ranging you can easily put a Gl Joe figure in the light wing loadings it floats and should from 63 to 81 ounces). It comes with a cockpit (if you go for that kind of detail). be quite efficient. At heavy wing load built-in landing wheel. You'll want to My own preference is to model the ings this plane changes personality. I put some drag on this wheel to cut down plane and not the pilot. think he has a strong lead on first place. the roll-out. The stability/maneuverability chal In terms of details, the wing span is 74 I’ve now had a chance to fly this model lenge has also been recognized by the inches, root chord is 10 inches, the airfoil and it’s a delight. It's efficient, behaves Torrey Pines Gulls. The m embership of is M enard 202 (high entry point w ith in a predictable manner, and is excep this club will soon compete in a mixed very narrow trailing edge), fuselage tionally stable in final approach. The thermal/slope contest. You have to use length is 44 inches, the servos being ailerons make it really turn, rather than the same plane in both inland duration/ mounted inverted and in tandem. The slide around the sky. It can be operated precision and slope areobatic events. empty flyaway weight is 30 ounces. with coupled rudder and ailerons, or That’s no mean trick! Facing this chal Some old sailplanes never die. The with these functions separated. It’s lenge, Judge John Menard created a other day I saw Ernie Wrisley of Santee, easier to fly in the coupled mode, but unique hybrid. At a glance, it looks like California launch his Thermic 100 at the uncoupled mode provides an addi an aerobatic ship (including ailerons), Torrey Pines. Here is the classic R/C OCTOBER 1979 103 R/C MODEL BUILDER . m m m i R/C MODEL BUILDER R/C MODEL BUILDER ( | T I 'l T U -JL·. R/C MODEL BUILDER R/C MODEL BUILDER 'I X^ X^X XJI | R/C MODEL BUILDER -}► (BUT STILL GOODIES!) -)► MOST BACK ISSUES OF “ MODEL BUILDER" ARE STILL AVAILABLE, THOUGH SOME ARE IN SHORT SUPPLY. ORDER NOW, WHILE THEY LAST! PRICES VARY ACCORDING TO QUANTITY REMAINING IN STOCK. NOTE SPECIAL ANNIVERSARY PRICES LISTED BELOW! Apr. 75 2.001 : s p e c i a l i l l : May 75 3.001 Jun. 75 1.251 Put a check mark ( ) by the back issues you MODEL BUILDER MAGAZINE'S Jut. 75 · 1.251 wish to order. Magazines will be mailed by Sec • ANNIVERSARY BACK-ISSUE SALE I I * Aug. 7502.001 ond Class, postpaid. Foreign orders (except • · Sap. 75 01.251 Canada, Mexico, FPO, APO) add 304 Per copy. •ANY ISSUE MARKED WITH “o " 75 Cents! ; Oct. 75 01.251 Allow about four weeks for delivery. If United No». 7501.251 Parcel Service (UPS) is desired, add 804 mini • ANY ISSUE MARKED WITH " · " 50 Cents! · Ok . 7501-251 mum for up to two magazines, or add 804 plus * ...... á Jan. 76 01.501 10tf for each additional magazine on orders for Fab. 7601.501 three or more. Send check or Money Order (no Nov. 71 S3.00I I May 7301-001 I Apr- 7401.001 I Mar. 7601.501 cash, please, and no C O D ’s). A facsimile of this O k . 71 2.001 ) Jut. 73 · 1.001 ) May 74 1.001 I Apr. 7601.501 order form may be used. Aug. 7 3 · 1.001 I Jon. 7 4 · 1.001 ) Jun. 7601 501 ■ten. 72 01.001 I Sap. 73 «1.001 ) Jut. 74 01.001 I f ifc.70 1.001 I Jut. 76 01.501 Nam·: ______Oct. 73 · 1.001 ) Aug. 7 4 ·1 .0 0 ( I Aug. 76 through M M 7 2 · 1.001 I No«. 7301.001 ) S/O 74*1.001 ) Mey 72 2.001 ) Jun* 78, 1.50( ) A d d r« u : Ok . 7 3 · 1.001 ) No«. 7401.001 ) Am. 72 3.001 I July 78 Sold Out Ok . 7401.001 ) *Aug. 78 to date Jan. 74 01.001 ) C i t y : ______State: Jan. 75 0 2.001 ) Kch 2.00 ( I F/M 73 2.001 I Fab. 7 4 · 1.001 ) Fab. 75 2.001 I •Nov 78 Sold out A—138 9i9X I Mar. 7401.001 I Mar. 75 2.001 I PLEASE PRINT^ z i p : . M ODEL B U IL D E R . 621 Wert NinetKnth St.. Coeta M an, Ca. 92827 sailplane. As expected, it handled splattering planes against hard rock. He The report describes the use of a smoothly and was a pleasure to fly. With suggested using a net. This brought to barricade-net type arresting gear the stick in my hand it brought back mind the extensive “ Mini-RPV Recovery stretched between two poles with a memories of my first R/C sailplane, System Conceptual Study” sponsored flexible harness to absorb the shock of another Thermic 100 which began its last by the Army Air Mobility Research & impact. The poles themselves could be flight after a hard landing. I failed to Developm ent Laboratory, Fort Eustis, flexible or articulated, that is, pivoted so carefully inspect the wing for structural Virginia 23604, perform ed under con as to absorb some of the energy. Shock damage. All went well after the next tract by Teledyne Ryan Aeronautical. absorbing material could also be placed launch until I started a tight loop, and The final report, USAAMRDL-TR-77-24, under the net to prevent damage of the then ... I keep a wingtip of that plane in dated August 1977, summarizes a wide bird after it had been caught. An air memorium. Here's wishing Ernie many variety of landing techniques for re cushion might do this job. Alternatively, happy hours w ith this classic. motely piloted vehicles, ranging from the net could be made to travel along a Roger Sanders and I were talking the Lockheed Aquilla, which weighs in suspended cable, thus minimizing the about the problems of landing slope at 120 pounds, to larger RPV's weighing deceleration by extending the capture sailplanes in limited space. There’s got to up to 200 pounds. The recovery must be space. A related concept suggests cap be a better way than using treetops or effective at speeds of from 45 to 70 knots. turing the bird on an extended arm which converts forward flight into rotary motion until the energy is dissipated. JOHN POND You fly one wing into a vertical line which is then captured by a hook on that wingtip. Next thing you know, Old Time Plan Service you're on a ‘‘carousel.’’ Pretty tricky from a piloting point of view. The largest selection of plans in the world at the most Another idea mimics present aircraft reasonable prices. Each list 75c carrier landing systems with a tailhook being extended from the bird to pick up No. 10 OLD TIMER F/F GAS arresting lines stretched across the No. 10 OLD TIMER RUBBER/TOWLINE available area. That could be very inter esting with models. The arresting line No. 10 OLD TIMER FLYING SCALE A through K w ould have to be low enough to prevent No. 10 OLD TIMER FLYING SCALE L through Z sliding under, yet high enough to ensure capture. The landing zone would have P.O.Box 3215 to be sufficiently smooth to prevent San Jose, Calif. 95156 “ capture” by a root or rock. You simply Phone (408) 292-3382 bring the plane in nose high and under careful control!! Another set of techniques involves 104 R/C MODEL BUILDER THE QUIET REVOLUTION By BOB BOUCHER "This book tells you everything you ever want ed to know about electric flight, and many things that we bet you haven't even dreamed of yet. Over 100 photos and detailed drawings of models of every type and description that you can build and operate; free flight planes, R/C planes, scale mod els, autos, boats, even manned electric planes and solar powered planes. Extensive references to suc cessful designs and where to get plans. What kits are available to use with your motor. A list of elec tric articles in the leading U.S. magazines. Do's and don'ts, and other helpful hints. "This book is a must for everyone who owns an THE QUIET electric system or is thinking about buying one." REVOLUTION SEE YOUR DEALER OR ORDER DIRECT THE COMPLETE MANUAL OF $5.95 ELECTRIC PROPULSION SYSTEMS ROBERT J. BOUCHER ASTRO FLIGHT inC PIONEERS IN SILENT FLIGHT 13377 Beach Avenue Venice, California 90291 the use of a parachute. You could simply the ground. In fact, I contributed know, model airplanes landing success deploy a chute from the c.g. of the bird sketches of this parachute winch-down fully in fields of grain or tall weeds by and let it decend gracefully in a hori recovery concept to the Army study in means of the progressive energy absorb zontal attitude. I can imagine a number September of 1975. Another interesting ing characteristics of the flexible stems. of problems in achieving this. An alter possibility grows out of dragging a long Long nylon flexible oversized bristles native is to pick up the parachute from a line while flying in a circle. At the proper could be structured into a cushion. line strentched between two poles., but radius and speed the end of the line will Modules of such cushions might be this requires a dangling tailhook and a be stationary in space, rotating once latched together to make a neat small- sufficient delayed opening of the para with each circle of the plane. You now area recovery system. That one deserves chute to prevent immediate "flattening" position the circular flight path to allow some further thought for our purpose. It of the plane against the ground. Ken the line end to be picked up and at shouldn’t cost too much, and might be Banks of the Torrey Pines Gulls invented tached to a winch. Deploy a chute from easy to construct and put in place on a a related concept. Here the bird snags a the bird and winch down into a net! tem porary basis. If you’re interested, I line, then deploys a chute. The line is Retro-rockets are possible but too recommend that you read further de winched down, the recovery being exotic. How about using a brush at tails in the report. It may be productive. slowed by the chute. A net over the tenuator patterned after the recovery In any case, it’s surely good entertain winch captures the bird before it strikes system found so often in nature . . . you ment. NATIONAL SOCIETY OF RADIO CONTROL AEROBATICS A. J. FISHER INC. NEW MEMBERSHIP ANO RENEWAL FORM PI m m PRINT Manufacturers of quality Scale Brass Ship ano Yacht Fittings Since 1Θ25 N a m · ______AMA No. ______Pl^ans - Fittings - Kits · Books ILLUSTRATED CATALOG, $1.50 Add r Mi ------ C ity ______-______Stete ------Z ip ______ Competition ClMttficKion: a C D c / d n D c / d e CU NEW □ RENeWAl □ NSRCA No______ Du*t »r» $10.00 f o r o n · y n r . S«nd chock or Money Order to: NSRCA. c/o S illy Brown, >534 Huddloeton Drive, Cincinnati. Ohio 4823« ZIP . 4SOS7 OCTOBER 1979 105 vee events are for up to 15 minutes in duration, some modelers have need to SAIL CONTROL WINCHES carry lots of fuel on board. I chose to go with just a single 12-ounce Sullivan fuel tank mounted in front of the engine. To allow for better fuel draw on this single tank, I’ve raised the tank off the bottom of the hull by placing a wooden piece ·-: - / between the two motor mount rails. The tank then sits on top o f this piece of 1 wood. This helps get the fuel level higher. This system works wt H for the five-minute enduros we run up in this W-1 . . . $59.00 W-2 . . . $119.00 area. INSTALLING THE HATCH COVER • Custom R/C design for all boat sizes »Power - 40 in. lbs. «Travel Here’s the one thing I didn’t do time · 5 seconds «Voltage · 4.8-6 (W-1) «Size -2x2x5 inches. according to the instructions. Jeez, I just The Probar W-1 is mechanically operated by a separate, neutralizing couldn’t assemble an entire boat and do servo. The Probar Propo W-2 is designed to plug directly into the receiver, it exactly the way the booklet shows. I rather think the way I installed the hatch and requires no extra batteries. Specify Kraft, Futaba, or no connector. cover is better, and I only wish I could Both winches are fully assembled and tested, ready to install. A ll mounting take credit for the idea. What I did was hardware, switch pushrod ÍW-1 only), and winch arm blank are supplied. cut back the front part of the hatch cover STAINLESS STEEL HARDWARE: MISCELLANEOUS ITEMS: and then glue wood to the front part so a Turnbuckles, Chainplates, Goosenecks, Sheet exit guides, 3owsie, brass hinge could be installed. I think Boom vang pivots, Pad eyes, Tangs, Rudder posts. Mast head the photos show how this was done, and Deck cleats. Boom cleats. Rigging wire, fitting, Dacron sheet line. it is super slick. Some of the guys up in Deeler inquiries invited. Seattle came up with the idea and it’s PROBAR DESIGN P.O. BOX 639 ESCONDIDO, CA. 92025 really great for enduro racing, since you don’t have to fumble around trying to I’ve often wondered about the rela me with the hardware kit, and it is of get a hatch on quickly. There are a tive stability of conventional versus excellent quality. After the plywood num ber o f ways to keep the back part of canard configurations. If you're into transom plate has been attached, the the hatch down. Some use cabinet door technical jargon, you ought to read hardware kit can easily be installed. I latches, some use magnet catches, and I “ Calculations, and Comparison with an initially had some concerns about the just let mine flop. I do plan to put a catch Ideal Minimum, of Trimmed Drag for brass shaft log supplied in the kit. I’m on it, since the lid could get torn off in a Conventional and Canard Configura used to the teflon shaft housing and that violent flip. tions Having Various Levels of Static brass seemed like it w ould be rather FINISHING THE PRATHER DEEP-VEE Stability,” NASA Technical Note NASA difficult to bend properly. My concerns This was my first experience painting a TN D-8391 by M ilt M cLaughlin, May proved unfounded, as I had no prob boat constructed from epoxy fiberglass. 1977 (available for $3.50 from the Na lems bending the shalt log to conform Since there is no gelcoat, I elected to tional Technical Information Service, to the gentle bend needed. Where the apply a couple of coats of K&BSuperPoxy Springfield, VA 22161). shaft log exits the bottom of the hull, primer prior to painting with SuperPoxy See you next month. · masking tape can be used to keep the paints. Before slapping on any paint, the epoxy from sliding through the cracks boat was washed down with SuperPoxy between the shaft log and the hull. I thinner to clean off any mold release Deep-Vee .... Continued from page 49 should mention that this hardware kit from the hull. I then lightly sanded the epoxied into the hull. I used Sears Filled would work well in any deep-vee. The entire hull and hatch with 220 grit paper. Epoxy Cement for attaching all wooden information and photos in the instruc The hull was again washed with thinner pieces to the epoxy-glass. I like this tion booklet do a super job in helping and gone over with a tack rag. I didn’t epoxy since it is rather viscous and tell and show how to install the make much of an effort to fill any cracks doesn’t run down the bottom of the hardware. or pinholes prior to painting on the boat. If I need to have it run easily, I just INSTALLING THE FUEL TANK(S) primer because they are very difficult to take out my heat gun and warm it up. It There are a number of different fuel see in the clear epoxy-fiberglass. really flows out nicely with a shot from tank systems described and shown in the The first coat of prim er was sprayed on the heat gun. Prather Products provided instruction booklet. Since many deep- the hull . . . and sure enough, the areas that need filling really pop out once a color coat is applied. To fill these cracks YES-SIR. YES-SIR. THREE BA08 FUlI T ^ I and pinholes, coats of Limco Spot and Glazing Putty were applied over the blemishes. I should mention that there weren’t all that many areas that needed attention. Once the putty has dried, it can be easily sanded and another coat of primer applied. If more blemishes ap pear, repeat the process. I found it necessary to only apply two different coats of the prim er before the boat was WALT MOONEY NOW OFFERS 3 BAGS OF PEANUT SCALE PLANS ready for final colors. ALL WELL TESTED OESIONS, AT ONLY ÍS .0 0 EACH For the first time in a few years, I EACH BAG FEATURES FOURTEEN PEANUT PLANS, decided to paint two colors on a boat. ONE OTHER, PLUS PHOTOS AND INFORMATION The base coat was SuperPoxy white SEND tl.0 0 FOR COMPLETE LISTING ANO SAMPLE PLAN TO: sprayed over the entire boat. After allow ing a couple of days for the base WALT MOONEY, 2912 CABRILLO MESA OR. coat to set, the hull was taped off so that SAN DIEGO, CALIFORNIA 92123 the areas to remain white were covered with newspaper. I prefer to use plastic 106 R/C MODEL BUILDER tape rather than masking tape for taping off an area to be painted . . . 3M Plastic Mending Tape works quite well for this. SB-2 SCOUT IS A NEW CONCEPT IN 1/2A SPORT TRAINER I was rather pleased with the way the TYPE AIRCRAFT FEATURING boat turned out after spraying SuperPoxy 2-CHANNEL RADIO CONTROL metallic red over the w hite base. The AILERON AND ELEVATOR boat was trimmed using dark blue trim WITH EASY TO FOLLOW tape and the numbers and letters for the INSTRUCTIONS AND name are from vinyl plastic peel-off ALL MACHINE letters. CUT WOOD. DESIGNED RUNNING THE PRATHER DEEP-VEE FOR NOVICE AND Although Prather Products does make EXPERTS ALIKE. a radio box for use in its vee, I elected to use one of the plastic boxes that was Dealer Inquiries Invited. already set up with a JoMac 2-channel Commander radio. It was necessary to Designed by build a holding frame for the radio box, Craig Wagner $29.95 and this was glued to the bottom of the hull usingsilicone sealer. All the linkages H00 Inc., 12 Mac Alva Dr., Hampton, VA 23669 / (804) 826-3400 are very straight and direct. For power, a new K&B 7.5 was installed. This engine is m onoplane racing. I especially like its proving to be a very powerful engine for scale appearance when it is running. both hydroplane and deep-vees. I was Although it’s still too early to report RUBBER STRIP able to obtain a K&B 4049 carb and on how well it will do in races I plan to FAI RUBBER: ENDORSED BY BEST reversed the exhaust system. The ex enter, I know Terry Prather has been U.S. RUBBER FLIERS. MADE IN U.S. haust elbow was made for me by Ron rather successful with his in NAMBA SIZES: 1/4", 3/16", 1/8", 3/32", 1/16" Erickson. I rather like this reversed District 9 competition. It appears that 1mm THICK (.042). SPOOLED, exhaust, since it gets the tuned pipe over Terry is finding model boat racing to be GROSS WEIGHT 1 POUND. to the side and out of the way of the to his liking. He w on the .40 monoplane PRICE $10.00 PER SPOOL PPD. IN electric starter. For a tuned pipe, I’m class at the District 9 D ouble Points U.S. ADDITIONAL SPOOLS, $9.50 using an OP5 .60 muffled pipe. The Championship. NEW PIRELLI International Products 50 pipe is also I greatly appreciate Prather Products SIZES: 6mm, 5mm. 4mm BY 1mm. very good on the K&B 7.5. providing me with the new boat to re PRICE: $14.00 PER HANK PPD IN view for this article. I have found it to W ith radio and engine in place, it was U.S. ADDITIONAL HANKS, $13.50 off to the pond for initial runs. Unfortu be an excellent addition to model boats available for .40 to .60 size engines. K&B SOLE U.S. DISTRIBUTOR AND nately, I experienced a problem with the WORLD WIDE SALES. engine's rear rotor being loose, and our Manufacturing’s assistance with the new FAJLM odeljBu££l2^ first few trips to the pond were rather K&B 7.5 was also appreciated. This engine and hull will make a very compe frustrating as I attempted to get the PO Box 9778 engine to run by playing with pipes and titive combination with the potential to Phoenix, Ariiona 85068______props w hile the problem was the loose bring home the trophies. · rotor. I probably should have torn down effective. Using a fine sandpaper (240 the engine sooner and saved myself 1 to 1 ...... Continued from page 29 wet/dry) roughen theareainandaround many hours of grief trying other things. the dent. Sometimes you’ll find that the becomes more time consuming and Once the problem w ith the rotor was dent is actually so shallow that sanding frustrating than the original con corrected, things got off to a much will come close to solving the problem. struction. better start. I have found that J-G 1-25, Assuming that it doesn’t, the nextstep We’ll not go into the concept of what I-25X, 1-27, I-27X, and 3-122 props w ill all is to fill in the hole that remains. There to do with those semi-basket cases that work on the Prather Deep-Vee. I have are several alternatives at this point. require a master's degree in jig-saw to not had time to really fine tune the boat, Micro balloons and resin works well, repair. Rather,howaboutthedingin the but I’m most pleased with the way it however, in recent repairs I’ve used PCV leading edge that came from the base handles and its speed. I’m still working by Pactra. Mix a small quantity of this ment door or the fractured sheeting that on finding the proper pipe length and creamy material with the clear catalyst came from the retreating wheel pants prop for maximum performance. There and with a small "spatula” formed from that hit the wing on a hard landing. is no doubt in my mind that the Prather a piece of 1/64 plywood with the edge Deep-Vee has the potential to be an The dings: To care for those little feathered by sanding, fill in the hole. excellent boat for either deep-vee or dents I have found thefollowingmethod The PCV may be feathered beautifully AVIONIX INTERNATIONAL CORR PRESENTS THE * RADAR-5 * 3-Channel A.R.F. TRAINER Span: 59" Engine: .15 - .30 Kit Features: Pre-sheeted foam wings, A B S fuselage, hardware, spinner, etc. EXCELLENT FLYER $39.95 DEALER INQUIRIES INVITED 403 Clagett Dr., Rockville, MD 20851 Phone (301) 762-0013 OCTOBER 1979 107 APPLIED DESIGN CORPORATION small or drop the catalyst next to the per the "ding” portion discussed earlier. Æ c ) 738 P»nn SI. filler and stir the material into part of the Bear in mind that if the sheeting is over El Sagundo. CA 90245 fluid. It really isn’t as complicated as it foam, watch out, because the instant MINI *=■” SANDER sounds. glues will atack the foam. You’d be ADJUSTABLE TENSION Back to the dent. Once the PCV has set better off using another glue. HAND BELT SANDER up, sand the spot very carefully and Hopefully, you’ll never have to repair! FIRMLY HOLOS PAPER FOR EASIER SANDING lightly. Use the 240 grit to even it out and But then, let’s be serious. • Paddti tuts ind curves then drop to a finer grade such as 440 RUSS BARRERA • Hindy tu Hold used wet. If you’ve built a model or two, It was sad to note the passing of Russ • E u y t o U s · $1.59 you know how difficult it is to tell Barrera after being stricken with cancer. MINI-STRIPS PRECISION DIE-CUT Modhim Gsmtl whether little cracks or holes remain in Your w riter met Russ at a num ber of Nats SAVES TIME REPUCEMENT Fine Gsrnel AND EFFORT $1 0 5 SANDING BELTS Assi d Witor Prool an unfinished surface. The problem is where he worked as scale judge, and com plicated in the repair case since most recently in California, in 1977, as he X TEE BAR there is a great variety of finish in the served as the Scale Category D irector. ALUMINUM EXTRUSION surface and color. His tireless efforts devoted to modeling SAN0IN6 BLOCK The next step is to spray a primer will be missed by modelers. Russ had 'V lor uso with R U FF-STU FF over the surface. If you are using an air recently moved to Morgan Hill, Cali "Sotf-adhostv· sand paper ' < L i · Larga Tnia Surface brush, spray out beyond the feathered fornia. and was close to opening a true • Wan t Wear Out 11 Inch S 1 .75 area to include the dulled,sanded areas. model museum with many very famous TS. · Hindy le Use 27 Inch S2.99 I have found K&B primer an effective models displayed. It is hoped that the RUFF STUFF agent to use under a variety of finishes. museum can be brought to fruition, When the primer is dry you can very however, funds are required to do so. ■SELF ADHESIVE SHEET SANDPAPER ■ lightly sand the area and wipe it down to Scale modelers realize the need to MAKE YOUR OWN SPECIAL easily see if any scratches or holes preserve efforts from the earlier periods. SANDING SHAPES remain. If there are any areas yet to fill, I would encourage each of you do • Easy te Use my next step is to use Sears and Roebuck donate to this cause. • No m assy glue or drying time • Medium — Fine — Super Fine $ .4 6 spackling compound. This cannot be At present, until legalities of fund used in situations where a thick appli transfer are worked out, monies may be cation is required, The spackling can be sent payable to the AMA: Barrera Mu MINI S A W $ 4 .5 5 COMPACT 10 inch HACK SAW made into a paste and brushed on or seum Fund, Suite 400, 815 Fifteenth St., applied with the 1/64 ply spatula. When N.W., Washington, D.C. 20005. SAWS ANYTHIN6. ANYWHERE it is dry it will sand very easily, much PHOTOS Saw has rugged die-cast frame with comfortable, chip-proof plastic in more easily than the primer. A recent letter from Dale Willoughby sert handle. Receding nose and ad- W hen the area is filled to your satis included a list of aircraft photo packs (ustable 6 ” blade gives good worfc faction, spray with primer again since that he has available. The photos are access. Cuts wood, plastic, metal, and HARDENED MUSIC the spackling is very porous. Once 3-1/2 by 5, are color, and range from WIRE. again, lightly sand the area and then $5.75 to $17.50 per set fo r anywhere from MINI - SAW BLADES 31®» $1.05 apply your finish. Hopefully, if your 8 to 45 photos in the set. While as yet I color is specially mixed, you have saved have not sampled the offerings, I under enough to do the job. If not, lots of luck. stand the quality and coverage are good. into the existing sanded area. Extend the What happens at this point depends It was interesting to note that Dale feathered area about equal to the hole on your ability and the type of finish. If wrote to me following my article of a few size all around the hole. it’s a super glossy job you’re in for a months ago telling of my problem as a A word of caution needs to be re bunch of rubbing out to match the area. judge in a contest with color presenta peated at this point. The instructions If it’s a weathered camouflage finish, tion. I sincerely hope that you did not w ith the PCV state an amount o f catalyst maybe you didn't need to fill it in the feel that I was indulging in a diatribe for a rather large amount of filler. I’ve first place! (lengthy invective, violent utterance of never found I’ve needed anywhere near The cracked sheeting: If it's a small censure, railing language; Webster’s the amount listed, therefore, it has been crack, you can very often spring it back Dictionary). I was only attempting to necessary to use a smaller am ount of into position with a pin or No. 11 Uber suggest that you work hard on preparing catalyst. This is very difficult since the Skiver knife blade point. Then very the presentation so you do not leave the amount is more like a part of a drop. If lightly sand the area around the crack judge in the position of guessing. too much catalyst is used the material with 240 paper and use the instant glue Check with Dale for a listing of the not only sets up very fast but it tends to to seal it up. Sand and finish as required. aircraft available. A new list was avail be more rubbery. Work out your own If the crack is large, use the same able July 15. The list I received con solution to this. You can make certain method, but you might want to lay a 3/4 tained 81 separate aircraft, ranging from the hole in the catalyst bottle is very oz. fiberglass patch over it and then fill as a Blériot to a P-38. Dale W illoughby, 1999 COMPLETE KITS WITH PRECISION CUT PARTS ALL HARDWARE FULL-SIZE PLANS • i # · * · "RIDGE RAT" - $39.95 "PARAGON" - $69.95 49" span Slope Sailplane PIERCE 118" span Thermal Soarer Area - 436 sq. in., Wt. - 32 oz. Area - 1080 sq. in., Wt. - 48 oz. Wing Loading - 10.6 oz/sq. ft. AERO CO. Wing Loading - 6.3 oz/sq. ft. 9626 Jellico Avenue, Northridge, California 91325 Phone (213) 349-4758 108 R/C MODEL BUILDER Larkin Ave., Elgin, IL 60120. CLOSING SHOT If I build a model of the Gossamer Albatross, anybody know where I can get a scale man to power it? A thank you to Bob Wischer for providing Mint Julep photos after your writer managed to forget his camera Plane & Construction equipment on the trip. · •CURTISS HAWK Pee ^8celeHi'8pen · 22.·θ 2 8c·!· Μ* βρ·η βΐ2.·0 Fuel Linei.... 1 V Seal· 47Vi"Span ·10.·° Continued from page 25 • C U R TIS S Q O B H A W K F11Ct r Seal· 83 Span ·1β ° R/C Model Builder magazine. It was, in •CURTISS OULFHAWK 1A general, an excellent article, however, I .----■Ι3ΤΤΠβ$-ϊί7~070#7*70ΓΐΞ«ϊϊϊίϊ-ϊή3^5ΐβι^^—> eyepan aia.oo · Maw v« S o ·!· M V span MQO° find it necessary to take issue with him Outixw ul A M U O O Maka an asymerae la: Richard Q. Barron m i h o i iy Benns uv on his position on energy. This obviously Orand Blanc. Michigan 4B430 •ana HO* far Com»iata l«*or highly intelligent author fails to grasp, along with the population as a whole, the scale of the effort involved in this volume of oil represents over five supplying the energy they take for times the present proven reserves of Sunday, October 7,1979, Rain or Shine granted. It is certain he meant no harm, crude oil in the whole United States oil Rutgers football field "E” but his statement alluding to a 200-year patch (including Alaska). supply of oil in Texas will lead his readers Piscataway, N.J. By projecting a 2% growth factor into NOVICE into an erroneous understanding of the these numbers, we would get a little ADVANCED true and critical energy situation we EXPERT AMA SANCTION >670 closer to the actual way the United States MASTER face. uses energy. A 1.5% growth in energy is AMA SCALE You will note below some scenarios said to be necessary to avoid a serious SPORT SCALE mel979 that take the author’s statement at face unemployment problem. Eastern value but add the dimension of cold A 2% growth rate for the 20-year TROPHIES. hard fact. This is done not to be critical o f period would show a total period con PRIZES. States R/C MERCHANDISE the author but to bring perspective scale sumption of 399,177,458,850 (billions) of Championships and degree to his statement. barrels. The 200-year record of con Fact: Texas covers an area of 262,970 sumption would total an astounding P R iS fN t iD BY square miles, or 814,575,872,000(billions) number of 79,823,492,000,000 (trillions) Central JerseyRadioControlClub of square yards. of barrels. Our Texas oil lake would now ond tna During the first quarter o f 1979 the be 61 feet deep and there w ould be 97.99 Kiwanis Club,. Piscataway U n ite d States consumption rate of barrels of crude in place over every square yard of Texas. FRANK DRESCH, CONTEST DIRECTOR petroleum products averaged 20,834,000 9 W illow Ave., Piscataway. N.J. 08854 (million) barrels per calendar day, or Mr. King Hubbard made a scholarly 201/885-5379 7.604.410.000 (billions) of barrels per estimate of the total crude oil available JOHN REISER, ASSISTANT C.D. year. in the world. His estimate has been first 425 Runyon Ave.. Piscataway, N.J 08854 201/885-1673 Using these basic facts and applying a assailed by, and then accepted by teams "No Growth’’ scenario to the author’s from every engineering college in the statement we find that in one 20-year country, including M IT. It is still the scientists in the world. A simple sum period the amount of petroleum con accepted figure, and it says there are mary: "We just don't have that much, sumed would be 152,088,200,000 barrels 2000 billion barrels of crude to be found even in Texas.” H.W. Glamann. (billions), lust for kicks that comes to in tbe WHOLE WORLD. In 1973 we had 6.387.704.400.000 (trillions) of gallons. used 300 billions o f these barrels and had Applying a 10 X multiplier to the 20- proven reserves of 625 billion more. This After such a lesson on the energy year scenario num bers we find the 200- leaves about 1,070 billion barrels to find problems our country faces, we don’t y e a r consumption would be in the whole world. Our author claims mind having a red face. Why can't the 1,520.882,000,000 (trillions) of barrels. there is 79 times that m uch in Texas great “ Peanut Farmer” in the sky tell it This amount of oil would cover the alone! What a wonderful thing it would like that? Maybe, just maybe, there entire state of Texas in a lake of oil 13.93 be, if he were right! wouldn’t have been such long lines at inches deep. There would be about The problem is these numbers do not the gas pumps these past months. 78.54 gallons or 1.87 barrels in place over track with the data developed by some Back to the situation we modelers face. every square yard of Texas! Incidentally, of the most reliable and responsible Let me say at the outset that p ro fit is not a H O B B I E S +. ♦ FUTABA "SILLY SAVAGE" TRAINER **$ ♦ COMPLETE, WITH VECO .19R/C and ♦ FOAM WING 9 9 ^ ♦ FUTABA 3-Ch. SINGLE STICK RADIO ♦PLASTIC FUSELAGE ^ READ Y TO EL Y, JUST ADD FUEL & BA TTERIES. ^ HOBBIES + Mailorder Service for: l A O I l f Q HOBBYCRAFTS Half-mile east of Colima, P.O.Box 1342 on Whittier Blvd., in the Whittier, Whittwood Center - (Next to Von’s) California 90609 » OVER 25 YEARS IN WHITTIER « Whittier, California 90603 Phone (213) 947-1710 Write for our FU L L S E R V I CE Catalog - S3.00. Price refunded with order for $25.00 or more. 24-hour service on all orders. OCTOBER 1979 109 F/F Scale .... Continued from page 57 CANNON NOW - IT’S ^ — »»- R / C S Y S T E M S working on four of their kits at the same h 1 time, and I want to comment about WORLD'S SUPER-MICRO! them. Dollar for dollar I find that it is SMALLEST hard to pick any better kits on the & WORLD'S SMALLEST R/C SYSTEM market than this manufacturer produces. SERVO At only .47 o z .( the SUPER-MICRO Servo I have to admit a bias for the kinds of mokes this system possible. F lite pocks airplanes they have chosen. Personally, com patible w ith most R/C A M Tx o f other I’m rather tired of seeing the same mokes. Servo available separately, works warbirds produced and over-produced! with all positive pulse decoders. Of the four kits which I have started, the Luton Minor is the only one which I SYSTEMS : 2 C H . 3 C H . 4 C H . have finished and flown. I put in one of $ 2 2 4 .9 5 2 8 2 .9 5 3 3 9 .9 5 Ace’s bang-bang rudder only radios. It is powered by a Cox .020 Pee W ee w ith a FLITE $159.95 1 9 7 .5 0 2 3 4 .9 5 diesel conversion. The construction of PACKS: (3 .65 o z .) (4.16 o z .) (3 .14 o z .) this model was followed to the letter with only one minor exception. I chose 29/64X 31/32X 1-3/32" . SERVO to use Robart hinges to attach the wing on ly: Thrust 15 o z . - in . - $ 4 4 .9 5 struts to the wing; other than that, it is stock. No one will have any difficulty Complete Brochure - .50 in U.S. (1.50 Foreign) building this model at all. Bending the wire for the cabanes can be a slight pain. For Shipping odd $4.50 (Systems); $3.00 (Flite Packs); or It is imperative that all of the wires be VISA $2.00 (Servos). 20% deposit req'd on orders. C alif, residents bent true and aligned accurately before odd sales tax. Dealer and Distributor inquiries invited. mounting and soldering. The way the 13400-26 Soticoy Sire·! North Hollywood, Calif. 9I60S Phoit. (213) 764-1483 wing is held on, if thecabane is askew, so will the wing be. Other than that, it is a dirty word. Profit is free enterprise, and solitary, little oT plant there is to make piece of cake. hat’s what built this great nation. that precious “ go” juice, was built on I used the diesel conversion since I do However, no one wants to be ripped off. top of the gas well from which it draws not like having to fuel-proof models. If, six months ago. Smith & Co. was the makin’s. And right next to that Seems as though there is nothing labeled making a 10% net profit before taxes, methane gas well is the nitric acid plant “ fuel-proof” that truly does the job, hen a year later we believe they should that was b uilt at the same time. except epoxy. Since I finish all of my gas be making a similar net profit. Let’s be That tim e was the 1940’s! models using Floquil and nitrate dope, I generous, though, and give Smith & Co. Granted, there must have been several prefer to stick to diesels. At any rate, the a 50% increase. Now they're making a expansions to the plant over the years, Luton flew perfectly on its first flight, 15% net profit. Hey! Great! That, my but just what kind of expansion costs can and would make an excellent F/F model friends, is the way free enterprise is justify the cost increases we have just for a beginner new to gas power. The supposed to work. But when Smith & been subjected to. Certainly their raw overall weight of the model, including Co. starts to show 30% to 40% net profits, material costs haven’t sustained all the radio, was 10 ounces. This. I w ould say, is it starts to get under our skin, even if we inflationary increases such as transpor the lim it for Pee Wee power. do own some stock in oil companies. tation, etc., that other commodities The next model closest to completion Now we have been informed by a very have. is the General Aristocrat. I have it reliable source that THE nitromethane If there is anyone out there who can painted and ready for final detailing. I’m plant in the USA, the very single, only, give us a real and honest evaluation on building this as a F/F model using the the fuel cost increases, namely the nitro- Cox Pee Wee in the glow form for paraffins, let’s have it. W e’ll sure as heck power. I’ll probably use epoxy sprayed JVS CLAIM JUMPER print it. on the nose only for fuel-proofing. Again, the construction was followed A Fiberglass Masterpiece NATIONAL SOARING SOCIETY NSSNo. MEMBERSHIP APPLICATION DUES ARE AS FOLLOWS: Name: Individual: $10.00 Family: $16.00 (Any Senior or Open AMA member and any of hit immediate family who are aleo JVS SPORT 40 AMA member».) A Consistant Winner in Junior: $6.00 (Any Junior AMA member) ^O val Course Competition Each member or family automatically receive« e »ubtcription to the »ociety pub lication S A IL P L A N E , starting with the due» an AMA No. LSF No. first issue published afttr payment of dues and continuing thereafter through the membership year. Dues are payable prior to December 31st of each year for the ensuing year. Manufacturers of the World's finest Duet In the event a member joint during fiberglass Model Hydro planes MAI LTD: the dues year, he shall submit dues at Send 25« or stamps for catalog Jim Barr Donation follows: between Dec. 1 and June 30, full annual fee: between July 1 end Nov. Box 2009 JVS Products, Total 30, one-helf the annuel fee. Members Denver, Colorado 80201 JVS 39292 Spanish Bayonet. joining during December of a year shell ^ 7Ί PRODUCproducts Box 452, Anza, CA 92306 New membership I ) Renewel ( ) alto be members of ensuing year. 110 R/C MODEL BUILDER with no deviations, with the exception that I made the wings removable. I chose to do this because I prefer a knock-off The OCTURA CONNECTIONI-the feature in case the wings hit first. Per COVERUP! Sturdy, dark green vinyl covered manently mounted, the wings could end up as kindling on impact. binders for your valued copies of h e h e x The construction went without a MODEL BUILDER. Gold logo. hitch, with all parts fitting as they should. FLEXIBLE SHAFT COUPLER I started out with the intention of making this model for electric power, but I give up on the idea due to the excess weight inherent with this type of power. Beside liking the looks of this classic, I like the orange-and-black color scheme. My ABC Robin has the same color scheme, and my son refers to it as my Halloween airplane . .. nice kid, eh? I'm looking forward to test-hopping this one later on this month. The Fairchild 22 is another example of a fine classic design, and this kit also falls into the class of being well done. Even though R/C is not truly my bag, I enjoy flying this form on occasion. It is fun driving out to Lake Elsinore and flying Only $4.95 each, two for $8.95, three with just a handful of modelers and for $12.95, four for $16.95, or five flying R/C as a change. Just don’t get me for $20.50, postpaid in the USA. Out The Octura Flex-Hex Coupling tor flexible wrong .. . I’m still a dyed-in-the-wool side the USA, add 90 cents per binder. shafts uses an interchangeable collet, (available tor .250. .187. 150 or 135 scale free flighter! Therefore, the 22 will California residents add 6% sales tax. diameter cable) to hold the cable securely be made into a three-channel R/C without fraying the end as with set screw change-of-pacer. Once again, the con NOTE: One binder holds 1971 and 1972. connectors. Available to fit y„-24, Ί.-2Β. struction was followed to the letter. The Use one binder per year for 1973 to present. 7mm or 6mm threaded crankshafts. When only changes I made were that I used ordering specify thread and collet sizes (For UPS delivery, add $1.00 per binder) Order directly only it not available at your local hobby laminated basswood for both the stab dealer — add 10% tor postage Illinois residents add and rudder, and I made the cowl more additional 5% tor sales tax to scale than Flyline did. And that’s MODELS* Send 50* tor catalog and price list to about it. The only question I had is that OCTURA MODELS, INC. BUILDER "Celebrating our 25th year1" the plans call out for 2-1/4 inch wheels, 621 W. 19th St., Costa Mesa, Ca, 92627 7351 N. Ham lin Ave · Skokie. IL 60076 and I can’t find anyone making that size. I’m sure someone does, but all of the succumb to using the iron-on plastic popular brands seem to go from 2 to out for himself what Stahl actually did. coverings. . . 2-1/2 inches. One such area is the portion of the I found a picture of a 22 in Canadian I have framed the fuselage to the fuselage immediately below the stab . . . markings with the color scheme looking Stahl-designed Stinson Voyager. I was you can’t get there from here. Studying to be red fuselage with silver wings and hoping to get it finished for the “ gather the plans won’t help much, and the only tail and black registration. This is one of ing’’ mentioned earlier but time didn’t way you can make the stab platform my favorite combinations. I will give a allow it. The Stinson is a particular correctly is to have everything con report on the flying qualities of this favorite of mine, because I had a chance structed so you can see how it should go excellent model when I get it finished. I to fly in one quite often as a kid and together. I will be giving a complete am covering this model with silkspan on member of the Civil Air Patrol. At any flight report on each of the unfinished the wings and fuselage. The tail will have rate, it is certainly an asset for us model aircraft as soon as possible. Japanese tissue. I haven’t used silkspan builders to be able to obtain a Stahl In closing this month, I want to men in so many years, I have forgotten how model in kit form. Typical of all Flyline tion that the Flightmasters’ Annual is easy it is to apply. The only drawback is kits, the material is first rate, the rest coming up on September 22 and 23, that it soaks up dope like a sponge, but I being pure Stahl. There are a few areas at M ile Square Park. Judging, as usual, want you to know that I will never where the modeler will have to figure will be held on Saturday, except for one ALTHOUGH INTERESTS MAY VARY... HOT STUFF ALWAYS AVAILABLE AT YOUR HOBBY DEALER MODELERS HOBBY DEALERS ^ HOBBY DISTRIBUTORS ^ SATELLITE CITY AGREE P.O. Box 836, Simi, CA 93065 HOT STUFF™ Phone (805) 522-0062 is # 1 AROUND THE WORLD SEND S.A.S.E. FOR FREE TIPS TEXT AND ILLUSTRATIONS The "HOW TO” & "NEW IDEAS” Booklet OCTOBER 1979 111 8) Triangle (Ehling)...... A ntique That ought to clear the air a little. W hich reminds this colum nist, last year Shulman’s Banshee was approved as an FLY EL ETRIC Old Timer, based on newspaper clip pings and personal affidavit submitted by Leon Shulman. • VL-101 Electric propulsion system PETALUMA FUN FLY shown— using Hytork 48 motor and With the cancellation of the SAM planetary gear box, SJ-3 switch & West Coast R/C Champs scheduled to charging jack, and B-33L fast charge be held at Cal Poly over the M em orial ni-cad flight battery— total weight Day weekend (gas crunch again!), SAM 2l/z oz.— will power models 25 to 27 and SAM 30 decided to have a semi- 50" wingspan weighing up to 10 oz. unofficial (meaning it is not on the • Send 50c for latest catalog showing V L PRODUCTS contest schedule) fun fly at the Coast full line equipment & accessories. Division of Vista Labs Guard Station near Petaluma. • Hobby dealers send for information. 7023-D Canoga Avenue Karl Tulp volunteered to be Contest Canoga Park, California 91303 Director, Hal Cullens made some terrific looking beer can trophies, and Don Bekins donated merchandise and tro the last laugh, as I picked it up in my phies. That got the meet off to an jfcåÉb FREE FLIGHT binoculars just in time to see the model im m ediate success. develop a dynamically unstable series of The popular five-man Texaco Team HARDWARE event was held, with SAM 21 pulling the ro o t.·, accmbbomibb « pmkcibiom cm whip stalls which terminated against a hill three miles away.” win out at the last minute due mainly to WINDING BALSA Bill concludes by saying Hawaii is Charlie Critch’s good-flying Power HOOKS STRIPPERS probably the worst possible place for house. This event, by the way,can be run umumiraa ro pkamut free flight (there simply isn't any free along with the regular events with little interference, as each contestant is given rso mount land). The winds pump along at 20 mph icJETEJC n o r- ir m i m or else it rains. Doesn’t seem to bother only one flight. In this event any Old Timer could qualify and a two-minute PLAT* 1 the R/C boys. (Columnist note: the EØUPE H U B D______T K IT HOOKA ] Hawaii R/C boys fly real early in the motor run given to all (what a break for PIT» i ΡΟΚΒΤΚΛ BB. KBB the glow powered models!). ΧΟΛΡΒΟΟ. OAK r* AMO MB morning, before the wind develops.) CATALOG B 1.00 They have an indoor scale club that On the other end of flying. Speed meets at Koko Head gymnasium, so all is Hughes won the Antique event with a dIM CROCKET REPLICAS not lost. time of 25:37, followed by second place 1442 N. FRUIT AVE. ERRATA (OR IS OUR FACE RED!) C ritch w ith 23:52. The Texaco event was FRESNO, CA. 93728 In the last issue we featured a photo of won by newcomer Bob Anderson (a an old Spook 48, and credited Joe long time R/C man) with the time of Morgan with it. No such thing! Henry 19:51. Second was the Contest Director major change. Judging will start at 1 p.m. Ashcroft, of Pomona Valley Hobbies in Karl Tulp with 15:43. Tulp also won the and end at 5 p.m. This was changed so Montclair, California sent us a series of Carrier event, something unknown to that modelers do not have to go to bed goodies. These we will use at the rate of this writer. We’ll have more on that so late and get up early. This also one a month. Sorry 'bout that, Hank! later! provides an opportunity for those who SAM INFORMATION FREE PLUGS want to get together and have chow. The The latest dope to emanate from the Seeing that everyone else seems to get flying starts Sunday m orning about 8:30 SAM Board of Directors is the approval a plug in this column, the writer wishes a.m. (no gas power until 9) until 1 p.m. of the following list of Old Timers: to announce that he has acquired all of Judging will be AMA except for Peanut, MODEL TYPE the Competition Models (Sal Taibi) which will be Mooney. · 1) Cl. C Swoose designs. These plans (no kits) are avail (Parmenter/Swoose) .... Old Timer able in prices from $2 to $3. If interested in Stardusters, et al, your best bet is to Plug Sparks . .. Continued from page 40 2) Old Faithful (Lodge)...... A ntique 3) Brigand (McCullough) .. Old Timer w rite John Pond O.T. Plan Service, P.O. 800 feet (ever fly a six-foot model on an 4) Gnat (M c C u llo u g h t...... O ld Timer Box 3215, San Jose, CA 95156. .049?) and departed my field of vision in 5) Anderson Pylon ...... Antique ANOTHER PLUG wide wobbly circles. 6) Blitz Buggy (Lester) ...... O ld Timer Just received the latest printing from “ I believe the Clipper did indeed have 7) Hep Cat (M a rc h a l)...... O ld Timer Arthur Suhr, of W218N5866 MacLynn P r o ROD NYROD S u -P r -ROD MASTEROD ZEROD -XF The Leader in ADVANCED Push-Rod Systems PLAINFIELD, ILLINOIS 60544 1 1 2 R/C MODEL BUILDER GIANT |Scale! t e a l StttmC I BY POPULAR DEMAND • STANDARD PILOT COMPLETE WITH GOGGLES • VICKERS PLASTIC MACHINE GUN KITS • GNOME ROTARY ENGINE CYLINDERS • VINTAGE WHEELS, 6% " DIAMETER SEND SO* FOR COMPLETE CATALOG · DEPT. MB .181 PAWNEE ST., SAN MARCOS, CA. · 92069 Court, Menomonee Falls, Wl 53051. thread the high tension lead through the * You, the reader, w ill recall his last two firewall and resolder the high tension EXACT MINIATURES efforts, the books on Antique Gas clip to the lead. SCALE S H IP ACCESSORIES Model Engines, and Model Motors of With the washer and shrink tubing TEAK-8c.MOHOGANY 1940. Now, Suhr is offering two new snug against the firewall, you can pi<~' STRIPING printings: “The Glow Plug Model En up the model by the lead with no i gine 1950-1965” and a reprint of the that it will ever disconnect from thecc ANTENNA BRACKET ASSEMBLY Bunch Gas M odel Engines. In addition. BAKERSFIELD O.T. ANNUAL Art is also reprinting the original Brown Here is one that gets overlooked on a .3-BLADÉ PROPS Jr. engine instruction sheet. This faithful regular basis. D on’t know w hether it is reproduction includes a drawing of the lack of publicity or whether it is because JSHAFTÍNG recommended propeller for the Brown. the meet is squeezed between two large PROPS TO [SPECIAL OFTDER Of course, this is when the modeler used meets. The "gas crunch” didn’t helpone to carve his own gas engine props. bit either, but Chris Christenson reports Dea(er Inquiries Invited W ith the previous six items offered by a great tim e was had by all. Suhr, this makes nine items available. Among the O ld Timer events was O.T. PRICE LlSt/ B0X 402 Suhr also hopes to reprint the “ Minia Hand Launched Glider. (I believe this is 50 c m ' OXFORD, MD. ture Car Book” and a set of engine the first time it has been in a regularly papers. The latter would be all the scheduled California O.T. meet.) Chris 21654 » instruction papers that came with the sez the event was so well received, it w ill old motors. Some were single sheets, be repeated in next year’s contest. Are course and determine the amount of some elaborate foldouts and even book you listening, Bob Larsh? laps that could be expected. Some lets. Art' is taking advance orders on SAM 49 DIGGINGS models did not have enough fuel for these items at $7 and $30 each. The latest Arcing Point, newsletter of three minutes of flight, but as it turned Meanwhile, if you are interested in SAM 49, Bob Sliff, Editor, offers some out, everyone could make six laps. To be the Brown Jr. Booklet, this goes for $2. new ideas on how to have fun at an Old safe, the event was set at five laps. The Bunch Catalog is $5, while the large Timer meet. Their recent 49’ers Fun Fly Each flier then put in a time trial flight Glow Plug book sells for $7. In all cases, Timed Pylon and Precision Contest on to establish his base time. The object of these prices include postage. Gettum June 17 is a case in point. the event was then to attempt to dupli while they're hot! Held at Lake Elsinsore, California, the cate your flight time or come as close as HIGH TENSION LEADS 49’ers simply set up the pylons and a possible to your established base time. Ever have that frustrating experience landing circle. Actually, no specified Although the original idea was to start where the high tension lead comes off distance was required between pylons, from the ground, field conditions pre the coil? Naturally, if you are a good as they were only to act as reference vented this, so flying starts were sub craftsman, you will have it buried be points. stituted. hind the firewall with no hatch opening Once things got started, each flier Astonishingly, times were extremely to get at it! made a test flight to get the feel of the close, and only one and two-second Well, according to Ken Sýkora, Editor of the SCIF newsletter. The Flightplug, here is a surefire way to eliminate this Do you know that almost horror. First, cut off one of the high any modern glow engine tension clips on either end. Drill a hole can be converted to ignit in the firewall to provide a snug fit on the ion R/C operation? We high tension wire. Then, hook up the stock many sizes by differ lead to the coil and run it through the ent manufacturers, conver firewall. Mark the lead carefully at the ted to ignition and availa rear of the firewall (make sure you still ble for immediate delivery. have the right length to reach the spark We also can convert your plug). Now take the lead out of the favorite engine to ignition. firewall and slip on an inch of shrink All Work guaranteed to tubing so that it is on the inside of the meet your satisfaction. fuselage (in back of the firewall). Add a Complete line of ignition snug washer to bear against the firewall. Take your soldering iron and activate accessories stocked at all the heat shrink tubing until it fits snugly times. with no movement. Now, with the 77 PRODUCTS 17119 S. HARVARD BLVD. GARDENA, CA 90247 washer in front of the shrink tubing. OCTOBER 1979 113 of fill and fly for the best time. THE WRAP-UP VINTAGE R-C PLANS Next issue we will feature a report on the SAM Champs at Salt Lake City, complete with all activities including the MECA Grand Collectogether. · Counter...... Continued from page 10 \/ λ c r A i P CPDtMEK (SOD® OUMLt "SUPER CRUISER” made a lot easier by using the new 9 FT. WING SPAN “ Crazy Tape” from Sonic-Tronics. This 4 LARGE PLAN SH TS.- PLANS f> 20.00 material comes in 1/4 and 3/4-inch QUADRA OR GLO ENGINES A0Q , 2.00 P0STASE widths and consists of a .0005-inch polyester ribbon coated on both sides with some sort of super-grip adhesive, CATALOG-OVER 50 PLANS 50$ DEALERS WRITE fo r a total thickness o f .004 inches. Crazy SID MORGAN Tape can be used by itself, such as when 13157 Ormond, Belleville,Mich.48111 u .s .a . sheeting a foam wing, or in com bination with other glues, such as when putting doublers on a fuselage side. In the latter differentials were the order of the day. case, the tape acts as a clamp to hold the The w inner. Ernie Payne, had a zero To round things out, Ross Thomas placed third w ith his O.S. 4-cycle pow part in place, allowing you to continue differential; in other words, a perfect with the construction while the adhesive duplicate of his base tim e flight. ered Shereshaw Eaglet. In other words, the first three winning models were all 8 sets up. Results looked like this: When using CrazyTape, be sure toget 1) Ernie Payne ...... 0 seconds feet or over in wingspan! How about that? Imagine all those big turkeys flying things straight before sticking them 2) Phil B ernhardt...... 1 second down, because once they’re down, no 3) Ross T h o m a s...... 2 secondsaround pylons! A second event, which was abbre way are they com ing back up. Case in 4) George H u m e ...... 2 seconds point was when R/C MB’s Editor used 5) Jim A d a m s ...... 2 secondsviated due to the time required by the pylon event, was a three-minute Preci the tape to fasten plastic letters to the 6) Bob S liff ...... 8 seconds transom of his sailboat, then discovered 7) Jon L u n d ...... 11seconds sion event. The rules here were simplic ity in themselves, requiring the con that one of the letters was just a little bit For those who think this is a tough crooked. No amount of pulling, push contest that requires special models, the testant to have a maximum motor run of 90 seconds so that the approach and ing, hitting, kicking, swearing, or cussing winner used a Dallaire Sportster with an could get that letter to move even a O.S. 4-cycle engine. Phil Bernhardt was landing were not under power. A bonus of 20 points was given for touching fraction of an inch! That’s some kinda runner-up with his reliable Super Cy sticky tape! clone powered Ehling Contest Model. down in the landing circle. With a total possible 400 points, look at these results: Crazy Tape is available only in 50-foot 1) Phil B ern h a rd t...... 398 rolls. The 1/4-inch tape goes fo r $2.49, 2) Jon L u n d ...... 392 the 3/4-inch for $5.95. Try it, we think 3) Frank F in n e y ...... 367 you’ll like it. m i i m 4) Bob S lif f ...... 365 Sonic-Tronics is also marketing two 5) Ross T h o m a s...... 353 new types of fuel line. One is called THIS MANY TEXANS 6) Ernie P a y n e ...... 328 “ Silicone X,” which looks like regular C.D. Bob Sliff notes everyone had a surgical tubing but is said to have much- CAN'T BE simply great time. Note that in the Pylon improved resistance to heat and glow event, the only person you were com fuel, and is also claimed to have the peting against was yourself. Things highest tear strength of any fuel tubing certainly can get pleasurable! Sliff is also available. Silicone X comes in small or looking at some alternate events to large sizes, in 2 or 25-foot rolls. stage. The 49ers’ latest idea is a 1/2A Old The other new fuel line was designed Timer Texaco event. The only limitation especially for use with gasoline and here would be that the engine be a Cox diesel fuels. It is transparent orange in RICK FULLER Photo reed valve engine such as the QRC, color, is larger than most kinds of fuel THESE VALLEY R/C FLYERS DIDN'T HAVE Golden Bee, or Black W idow. This event tubing, and should be just the ticket for TO USE Π44 GALLONS OF MAGNUM would be quite simple, as all have about the big chainsaw type engines currently PLUS ID IN JU S T 24 MONTHS the same size tank, so it would be a case in use. It is being made available in 2 or Here's what they have to say: Extremely clean burning with minimum clean up & no goo or black residue." “Cooler running even with a 14x6 on a O S 60" MOVING TO SOUTHERN CALIFO RN IA? "Minimum needle valve adjustments." "Runs longer per tank of fuel" MAKE SURE YOU GET A HOME A great idle with a smooth transition to the WITH A MODEL WORKSHOP ! ! top end." Less wear for minimal engine failure. ' FOR ALL YOUR REAL ESTATE NEEDS. CONTACT: MAGNUM PLUS FUEL ANITA NORTHROP in 5 different blends SPECIALISTS IN ALL PHASES OF REAL ESTATE. MAGNUM GLOW PLUGS Wide Bar R/C for Cross Flow eng. Narrow Bar R/C for Schneurle eng. CROCKER REAL ESTATE MAGNUM C.L. HANDLE SEE YOUR DEALER We’re Here For You. ΤΜ ALDRICH MOOEL PROOUCTS P.0 Box 817 Each office is independently owned and operated. Edinburg. Texas 78539 (5121 842-3379 or 383-0327 Office at: 621 West 19th St. Costa Mesa, Ca. 92627 (714)642-5062 114 R/C MODEL BUILDER 20-foot rolls. All from Sortic-Tronics, 518 Ryers Ave., Cheltenham, PA 19012. CARR SAILS * * * What’s this? An R/C sailplane acces sory from a manufacturer of racing 4115 172nd AVE. N.E. products? That's right. Fourmost Racing Products is making a really neat little self-retracting captured towhook that REDMOND, WA. 98052 STANDARD ON ALL CARR SAILS should prove to be very popular w ith the Finest Amencan-mede DACRON sailcloth glider guys. The device is completely Vinyl, press-on numerals and insignia Heat sealed edges ehmnate fraying molded from what looks like glass-filled Coaled a unless steel |Ostay installed nylon and weighs a mere 1/2 ounce. The Rolled-edge grommets in leek, dew A head Boll-rope mams I lull meal attachment hook is spring loaded so that when the Santa Barbara 13000 10-Rater *30 00 trigger is moved, the hook snaps 180° East Coast 12-Meier *30 00 50/800 (M-class) *30 00 up into the body of the unit, releasing 36.600 $25 00 internat A-ciass *35 00 West Coast 12-Meter *30 00 Star 45 530 00 the towline in the process. Only 3/32 of Vanguard J -boat *40 00 TAA Petrel *30 00 an inch of travel is required on the Scale vessels, special purpose Deals, one-of -a-kinds Wnte lor a quote, and lor our trigger, so it would be a simple matter 197 9 Brochure and Used Saits List to hook up the trigger to the elevator servo so that full down elevator triggers current according to the plug’s needs, the hook. When the hook is retracted increasing current for a flooded engine the botom of the glider is completely and decreasing current after the engine ANNOUNCING smooth. Also, the towhook can be starts. It’s adjustable for all makes and Feet Steep Climb FLet Slow Olid· manually latched and released from models of plugs. The quick charger can « - - O outside the aircraft. charge most ni-cd batteries in about 15 The Fourmost Retractable Towhook minutes, automatically switching to a sells fo r $5.75. See your hobby dealer trickle when the batteries are charged. For tho now P 30 clo o o ^ first, or order one from Fourmost Racing Transmitter and receiver batteries can horo it o model designed w itti^ ^ ^ V Products, 4040 24th Ave., Forest Grove, tho novico in mind ond hot tho -v \ potontiol to win in tho toughoot com porttloir OR 97116. be charged independently or simulta neously; L.E.D.’s show which mode * * * (quick or trickle) the charger is in for the THE POT ENT-30 Mike Hoffelt says he is going into Doloxo kit foaturoe include Rx and Tx batteries. Charge current is Rolled boloo fuselage and wina mount with d4. production on his top-notch C/L Com shown on the meter. The expanded Completed prop end noao plug toil plug A ru d d e r Procut wing ribe.aoer notches Job rated boloo otripo bat designs, the M onoboom FAI and scale voltmeter reads charge level of Highest quality tissue lubed Contest rubber Monoboom AMA. He sent us some either the Rx or Tx batteries, showing Detailed instructions, flying tipe to help you wial CAT HO R2 8 6 .0 5 PLUS S 1 .00 P AP. photos and some literature, including a safe or unsafe levels and indicating chock or money order to CHA& WERLE copy of the instruction manual for the when charging is required. The fuel 3 6 2 0 MORSE AVE NO 8 SACTO. CALIF. 058 21 FAI version. By coincidence, he also sent pump switch is spring loaded to guard Dirty Dan one of the first kits, and Dirty against accidentally pumping that pre has quite a bit to say about it in this cious fuel (nowadays more precious plete finishing kits of its kind, and m o nth’s C/L colum n. Rather than repeat than ever!) all over the ground. Heavy- includes 18 different colors of flat and what Dirty says, we’ll refer you to the duty jacks are installed in the panel, and gloss enamels, brushes, knives, a drop C/L column for his comments. We banana plugs are supplied for both the cloth, two types of cement, sandpaper, would like to say, however, that if the starter and glow plug leads. putty, gluing tips, four kinds of thinner instruction manual is any indication of Whew! That list ought to satisfy just .. . all this is in addition to the revolving the quality of the rest of the kit, then this about any hard-core gadgetry fanatic. paint organizer carousel, which is has to be one of the most professionally The Super Power Panel is now in full molded from unbreakable polypropy put-together kits, of any kind, that you production and sells fo r $89.95. O rder lene. A wide base stabilizes the carousel can buy. one from L.R. Taylor & Co., 20831V2 and provides an additional storage tray. These kits aren’t cheap; the FAI Roscoe Blvd., Canoga Park, CA 91306. Bought separately, all the items in the version sells for $24 as a single kit or $65 kit w ould retail fo r $20.48, but Testors * * * as a trip le kit. The A M A version is slightly has priced the kit at $16.98 . . . a nice higher, $26 for a single or $70 for a trip le Plastic Model enthusiasts will want to savings. The Plastic Model Finishing kit. Read what Dirty Dan says about the check out the new Plastic Model Finish Center should be available at your kit, then see if you don’t think those ing Center being offered by Testors. This dealer; if not, contact The Testor Corp., prices are reasonable. We think you will. is without doubt one of the most com- 620 Buckbee St., Rockford, IL 61101. · C/L fliers who are interested can contact Mike Hoffelt at Hoffelt Group QUADRA MARINE CNOINE #859 Aeromarine Super Drive $100.00 Aerosport, P.O. Box 99774, San Diego, LIST It Μ K SALE PRICE *124.00 CA 92109. BOATERS" An ignition engine can turn a prop at the same speed as a 60 * * * Aeromanne s Super Drive is designed for an ignition engine to turn a prop at 2.5 times faster than the engine speed ideally suited for The latest in electronic gadgetry for K| the Quadra Super Hustler Sea Tiger and other ignition R/Cers comes from L.R. Taylor & Co., in engines Take advantaoe of fuel economy and investment cost of a ignition engine and use Super Drive in those large the form of the Super Power Panel. W e’d Hydro s and Deep Vee s As with all Aeromarine products, be hard pressed to think of anything else this unit was designed and manufactured to the highest ma· that could be incorporated into such a chine standards and will give smooth, reliable performance with W a new sense of realism all the way to R.P.M.'s of 25.000 +. device. The Super Power Panel is a Super Drive has an all aluminum case for light weight and an combination glow driver, expanded anodized finish which retards corrosion even in salt water Each scale voltmeter, quick charger as well as Vt" stainless steel shaft is supported by two double shielded. a slow charger for your radio system, T h · First and Only Boat Motor Mount s,ainless s,eel ba" bearm05 in a u r* smooth and easy running fuel pump control, and power source For The Quadra Engine ^ for your electric starter, all rolled into MM Standard 5" wide, 914.95 o '" Aeromarine Enterprises Inc. .c'"" ,δΊ 709 Longboat Avenue | - 1 one neat, compact package. Includes all mounting bolts. Black anodized to prevent corrosion *** I Beachwood, N.J. 08722 **' 12 0 1 ) 240-3882 OWSK· The glow driver monitors glow plug Interchangeable with most .60 and .90 mounts. current demand and automatically varies [Distributor and Dealer Inquiries Invited OCTOBER 1979 115 FULL SIZE PLANS SERVICE No. 6792 LO N GSTER $3.00 No. 2794 HALF-A SCALE RACERS $2.00 F/F or R/C 1-inch scale (30" span) cutey Two-for-one plan with 'Little Mike' and Including reprint of construction artide for CO 2 . .010, or rubber power. Le Gray. 'Shoestring' ukias. Jim & David O 'Reilly. (if any) No. 679-0.T. VALKYRIE .020 $3.00 No. 279-O.T. S/S PUSHER/CANARD $2.00 Build this .020 Replica of Carl Goldberg's Single stick, 32" pusher/canard rubber famous soaring gas model. Rudy Calvo. ship from '33 M.A.N. By Harry Edsall. No. 10791 TH E BIG S T IK $10.00 World's most popular R/C design in a new No. 1791 DFH-21 $4.00 size (8VJ'). For 2" engines. Don Anderson. No. 5791 DFH · 20 $7.50 Latest FA I pattern ship by top Swwdish Smaller FA I pattern tftip for .15 power by top Swodirfi flier. Bengt Lundström. No. 1079-0.T. PAN TH ER $3.50 flier. Has built-in pipe. Bengt Lundström. Classic low-wing kitted by Peerless, for No. 5792 DORNIER Cs 20 $2.00 No. 1792 MAC'S "ROBOT" $6.00 ■ 19-.23 ign. eng. 46” span. Walt Schultz. Famous R/C Aircraft Series, No. 3. First Contest-winning CO 2 scale free flight. It publirfted in 1951 AM. Fran McElwea. No. 10792 FIRST NIGHT $2 .00 takes off weter every time. Walt Mooney. Novice sport rubber ship, 24” span, OK for P-30 event. By Godden & Moseley. No. 579-0.T. TAYLORCRAFT $10.00 "s t ic k ” ΈΜ PATŤERNŠ’ Quarter-scale in 19411 Famous 9-foot de j Complete sets of pressure sensitive patterns No. 1079-S5 H A N K ER C H IEF $2.00 sign kitted by Miniature Aircraft Corp. I provide "printed wood". . . on your stock . . Hull lines drawing for 50/800 R/C sailing I for selected M ODEL B U IL D E R plans. Press yacht. Uses Bingo sail rig. B y John Hanks. No. 4791 H O LLY HAWK $3.50 ! all patterns for ribs, bulkheads, tips, etc., on Scale-like shoulder wing sport model for > proper thickness sheet balsa or plywood. 3-channel R/C, .19 eng. Mike Hollison. J and cut 'em out1 No tracing, no transferring. No. 9791 SYN CH RO G YRO $5.00 I no plans tearing, no inaccuracies. Just like No. 4792 P E T R E L $5.00 j making up your own kit with printed wood. Twin-rotor autogyro for 2-ch. radio, .35 Rugged, competitive R/C sailplane with engine. Easy to build and fly. G. Chaulet. 100” or 2-meter wing options. Jim Ealy. • "Stick ’em Pattern" numbers correspond to J plan numbers. Order with plans and they'll No. 9792 C R IC K E T $3.00 No. 4793 PELIC A N $2.50 i be mailed together . . 3rd Class. Add 664 Balsa profile fuse, Ace foam wing 1/2A Far out, but well-tested F/F pusher can j per set to mail patterns 1st Class. quickie for 1 or 2-ch. radio. J. Headley. ard flying boet, .049-.09. Jim Fullerton. ! CALIFORNIA RESIDENTS ADD 6% TAX. No. 9 7 9 -0 .T . LANZO '37 STIC K S8.50 No. 479-O.T. TLU SH M ITE $2.50 First R/C Nats winner, 4th in Famous From May 1938 Air Trails, a 4' span gas R/C series. Spans 9 ft. By Chet Lanzo. No. 11731SP BIG JOHN the F IR S T $6.95 model for Atom (I) engines. Frank Tlush. No. 574-O.T.SP T O COUPE $2.96 No. 674-O.T.SP RED ZEPHYR $3.95 No. 8791 S N EA K Y P ETE S6.50 No. 3791 D U STER $6.00 No. 6741SP T R IX T E R BEAM $2.96 A 7/8 size "Big John" biplane for .61 en C ontem porary .61 pa tte rn ship. Howard No. 774-O.T.SP OUT Ό SIGHT $2.45 Pete lines, f ixed dual gear. Dick Hanson. gines and 4-channel R/C. Bill Northrop. No. 7741SP C U R TISS A/12 S H R IK E $3.96 No. 874-O.T.SP POWERHOUSE $3.95 No. 879-O.T.-1 C U R TISS F-11C-4 $4.00 No.3792 MYSTERY $3.50 No. 91074-O.T.SP BUHL PUP $4.96 Reprint of Miniature Aircraft Corp. plans Compact 64" span aerobatic R/C slope No. 1174-O.T. SP LANZO S TIC K $1.95 plus ribs and bulkheads from printwood. soarer for 2-channel radio. Al Patterson. No. 11743 SP "C-OUELL" $3.96 No. 575-O.T. SP M ER C U R Y $3.96 No. 879-O.T.-2 CHALLENGER $3.50 No. 379-O.T. PRIVATEER $6.00 No. 775-0.T. SP BOMBSHELL $3.25 Easily-built Class B gassie w ith 50” span Very clean cabin design from Sept. ‘38 No. 277-O.T. SP B E R L IN E R JO YC E $6.25 from May '41 Air Trails. H.A. Thomas. M .A.N.. 87" span. By Thracy Petrides. No. 3771 SP WACO UPF-7 $5.50 No. 4771 SP "MISS ARPIEM" $3.25 No. 7791 TU R N ER SP EC IA L $9.00 No. 577-O.T. SP GLADIATOR $4.76 Roscoe's famed Thompson Trophy racer No. 2791 GROSS VOGEL II $7.00 in 2" ■ V R/C scale. Col. Bob Thacker. Large (1700 K). in.) plank-type R/C fly ingwing, .19 to .60 eng. Charles Clemens. Price includes 3rd Class postage and reprint of building instructions (if any). Add 064 No. 7792 P ER C Y $4.00 No. 2792 C LIF F H A N G E R $2.50 PER PLAN for 1st Class postage. Add $1.00 Pulse-rudder slope glider uses penty-hose PER PLAN for overseas orders (except APO egg/pod fuselage, 68” span. Jack Headley. R/C slope soarer quickly built from Ace foam wings. 54" span. By Larry Ranger. and FPO). Complete plans list 354. CALIFORNIA RESIDENTS ADD β% TAX. No. 6791 CAP 20L-200 $10.00 No. Z793 STORM HAWK $2.00 MOOEL BUILDER PLANS SERVICE Fully aerobatic large-scale low winger for Sleek, 26" low wing sport rubber ship, 621 WEST NINETEENTH ST. 2 cu. in. or red.-drive engines. Jeff Tracy. reminiscent of late '30'$. John Morrill. COSTA MESA, CALIFORNIA 92627 first single score from each flight line! cording to the one-flight-from-each- R/C World . . . Continued from page 11 Luckily, the weather held out in Celina line rule, only the first-round flights Koger and Radcliff would trade places. could have counted. This would have and a full 6 rounds were completed. Kimbro and Chidgey would also change put Brown, Radcliff, and Koger in 4th, Wanna do some speculating? If we places for 5th and 6th. Bridi would move 11th, and 7th places respectively, and took the best three flights overall, we’d from 12th to 7th. the winners would have been Steve have the same top 4 ... except that Wanna try som ething else? Suppose Helms, )oe Bridi, and Jim Oddino! etc.) Any less than 6 flig h ts fo r ALL the weather didn't cooperate, prevent Somuchforspeculation. . .Sixrounds contestants would mean taking only the ing the completion of 6 rounds. Ac were completed in two days of fine, mild, partly-cloudy weather. The wind UNITED STATES was never a real problem , though at times it became rather brisk, and quite PATTERN JUDGES naturally, was across the runway. Three J o m U S P J A ASSOCIATION flight-lines, each equipped with three judges, completed four rounds on NAME Saturday and two on Sunday. Pilots switched sites between rounds and ADDRESS shifted starting order, while judges and line operators rem ained at the same site CITY STATE ZIP throughout the contest. Each site had a Betty Stream, Sec/Treas., 3723 Snowden Ave., Long Beach, Calif. 90808 transmitter impound tent, andthe trans mitters were toted between sites on 116 R/C MODEL BUILDER open flat-bed farm trailers. of items used by the three winner/team Monitoring, tabulation, and food members. Different airplanes, different services were located at the center site, radios, engines, props, and retracts. where Russ Brown also held forth at the Sorry, we neglected to record pipe P.A. m icrophone, keeping all spectators brands. Dave Brown’s Tiporare was aware of who was flying at what site. He designed by Dick "Sneaky Pete” Hanson was fed the info by the site directors via (see Aug. 79 R/C MB), and will be the walkie-talkie communication. subject of a future all-built-up construc C om petition was based on the FAI tion article. Dave still hasn’t run out of “ Flyoff” schedule, popularly known as bronze and white paint! “ Schedule C” . Fliers made up their own Dean Roger’s Wayne Ulery-designed 14-maneuver schedule ... takeoff and EU-1, was the only aircraft that you could landing plus 12 aerobatic maneuvers. quickly distinguish from all the others; Selection is lim ited to a maximum which were either Curare-like. Phoenix AND MY RC possible score of 450 points, and only like, or Compensator-like. )oe Gross 4 COLOR one Figure M is allowed. managed to bridge the gap, though. He (EXCLUSIVE RIGHTS FROM ROYAL CROWN COLA) £ Most fliers avoided the snap maneu combined the EU-1 flying surfaces with a Your choice p l a n e vers, such as the Avalanche (inside loop more typical slim, cab-forward profile b o a t c a r on poly w ith a snap at the top) and the Two Snap fuselage. FLI CAP ester/ cotton T-shirt Rolls in Opposite Directions, and no The big EU-1 is certainly impressive in With one, that we recall, messed with spins. the air, and if the rumor is true that One outstanding exception in the snaps Hanno Prettner of Austria is preparing a AMA WINGS AMA Wings was Tony Bonetti. His Intrepid was one larger, slower, gear-drive ship for South 4 COLOR of the fastest, yet he opted for the two Africa, it could be that Dean Koger will (PERMISSION FROM AMA) $6.50 snaps ( a 5-factor maneuver). Entering at be the one to battle it out w ith Hanno fo r Size S, M, L, XL + 50« Postage a fairly high speed, the first snap almost the highest position on the winner’s stopped the plane dead in the air, yet the podium . second snap, in the opposite direction, We understand that Mark Radcliff had We do custom work for clubs, was consistent with the first. The maneu to be literally dragged off his butt to special events, businesses ver, rather than being jerky, as one come to the Masters. At the last minute Information sent on request. would expect, was actually graceful, and he dusted off (and not even that much!) done without noticeable loss of heading his 3-year old, battle-scarred Phoenix 7 or altitude. and moseyed on over from Barnesville FLI d? 9HIRT9 Another of the four 5-factor maneu (!). Ohio to join the fun. By round 3, he vers was the Square Loop with Half- began to get serious and made his 2nd- 5132 DEL REY · LAS VECAS. NEVADA Rolls, which many chose to perform. It’s place flights in that and the 4th and 5th (702)876-1624______89102 a power-promoting maneuver, as lots rounds. of speed is killed in the first sharp pull- An excellent team has chosen itself to Brown used a Top Flite Supreme rated at up and half-roll, therefore requiring represent the U.S.A. in South Africa. If 11x7, but the thick hub and high pitch tremendous thrust to complete that first the judging goes for the small, fast angle left one wondering about the side of the square. aircraft doing big maneuvers, both Dave pitch measurement on all of the props! The two other 5-factor maneuvers are and Mark will be right there. If the larger Kraft radios were used by 17 fliers. 9 the Figure M’s with quarter or half- aircraft, flying more scale-like maneu used Pro Line. 5 used either a total rolls. Almost every flier used one or the vers are in, Dean Koger is ready for them Futaba system or a Futaba airborne with other. We admit to favoring the one with with the Sunday punch. Pro Line transmitter. We also counted 3 quarter rolls. This maneuver puts the If there was ever a World Champion World Engines Experts, and one each aircraft in plan view as it performs the ships in recent years where the U.S.A. Royal Omega and Logictrol Interna stall turns, making them much more could capture both team and individual tional. visible to the judges and spectators. honors, this is it. . . Retracts were pretty evenly divided The Top Hat still remains a confused Getting back to equipment used by between Rhom, Kraft, and Southern issue as to the relative lengths of the Masters contenders, the Rossi engine R/C at about 9 or 10 apiece, with a few sides and the top. The FAI description certainly dominated the power depart Goldbergs and Pro Lines to round out still disagrees with the reasons for ment. We counted 18 in all, followed by the 36 total. downgrade. The description says the 5 S.T.’s, 4 O.P.S., 4 O.S., 4 Webras, and Though many looked alike as men plane “ ... pulls over to inverted flight one YS. The Max Daly/Handy Craft/ tioned previously, there were 21 dif for a short period (our italics), pulls Southern R/C props dominated with ferent aircraft designs on hand, with the down . .. etc.” However, one reason for about 18, followed by 10 Rev-ups, about Tiporare dominating at 5, followed by 4 downgrade clearly says to penalize if 6 Zingers, and a few Top Flites. Dave Phoenix, and 3 each Deceptions and “ Vertical and horizontal legs not the same length.” For the first time that we know of at a Master’s Tournament, it was decided that all three legs must be equal. This is contrary to the decision made at the W orld Champs to date and it will have to be clarified again in South Africa. Incidentally, our personal interest in this and other FAI rules matters is more than academic, as we will be Chief Judge in South Africa for the World Champs in late September. Also, Bob Upton will represent the U.S. as one of the 10 scoring judges. The chart gives you the information we gathered on each contestant’s equipment, along with their scores. It’s interesting to note the dissimilarity OCTOBER 1979 117 MAMMOTH Greatest Book of STINSON VOYAGER FULL-SIZE RUBBER FLYING ONE QUARTER SCALE SCALE PLANS, plus building, trimming, and SCALE MODELS flying instructions ever O F W W II published! Twelve half-inch scale q # q « q # o ¥1 $89.50 rubber powered flying W ing Span · 101.75" models by some of the 12 FULL SIZE PLANS Designed tor Quadra Engines Plywood & Softwood Construction world's best modelers, •«RUMMAN M» *U 0 Q *f Kit by Art Lane •OftUMMAM W HCUCAY including Doug Mc- • SOUGHT 1*0 COfUA.f* • MJTSuetfrtl O NO Hard, Clarence Mather, • ►1AJWUM MMM CAM I BARKLEY TRAINER Bill Hannan, Bill War • Kx*t muj i Km • M U * » AMACOMA ner, Bob Peck and • c v n r r o n o c others. • M i l MUK7M • MAXIMO Π Λ.Υ Compiled and pro FEATURE ARTICLES ON AU. 1/24 SCALE BUILDING, FINISHING, AND duced by I.E. Coleman, <1/2-· r) edited and published FLIGHT ADJUSTMENTS. Wing Span · 56" $37.50 Engine Size 19 · .35 by Model Builder Ma All Balsa Ply & Hardwood Construction AVAILABLE NOW - $6” Detailed Plans and Instruction Booklet gazine. SEE YOUR HOBBY DEALER, OR ORDER Ontario Residents Add 7% PST DIRECT. ADD $1.25 FOR FIRST CLASS. DEALERS INQUIRIES WELCOME FLYING CALIFORNIA RESIDENTS ADD 6% SALES TAX. l+ lJ - 5 enterprises !*] p.O. Box 82 Belmont, Ont. SCALE MODELS Ä ! sctsS Canada NOL1B0 same), and we'd forgotten about the unique to the streets of Los Angeles . . . 1 ■ 519 - 644-0375 country folk coming to town for shop- And the gas stations were still open and pin’ and funnin’ on Friday and Saturday! pumping by midnight, in the low 80’s per gallon! Trions. Every other car was a jacked-up-in-the- Monday morning, we leisurely en Well, that about covers it. But remem rear Chevy with mags, pipes, and wide joyed a breakfast of ham and country ber we said something about more later wide ovals. The tires chirped and the eggs for a buck-eighty-five, filled the on the gasoline situation? We said pipes rumbled 'til way after midnight, rent-a-car with gas in a vacant filling Celina was a quiet mid-eastern farm the car windows were open wide, and station, drove the sixty or so miles back the hillbilly/rock stations were turned town. That it was during the week .. . to the Dayton airport and turned the car but Friday and Saturday, especially at up full bore. Gasoline shortage? Dick in without moving the needle off the night, was something else! It's been a McGraw and this editor did the drug "fu ll” mark on the gauge. Tee-hee! · long time since we left the "quiet” little store cowboy bit under a street light pre-war farm and university town of near the motel one evening and counted Newark, Delaware (yes, we were back in dozens of cars making dozens of laps Workbench . . Continued from page 6 later years, but it was no longer the around the town . . . Cruising ain't parent, guardian, brother, or whoever is interested in helping, should lend a hand just barely enough to keep up the CENTRAL AVIONICS desire . . . too much help and you take (formerly Kraft Central) away the triumph of accomplishment or discovery of do-it-yourself capability. 7843 Ramsgaf· Drive Too little, and the spark fades and is Knoxville, TN 37919 difficult to rekindle. R/C Model Builder believes that we in HIGH QUALITY — PROFESSIONAL REPAIR the hobby industry need desperately to cultivate new generations of modelers. AND PREVENTIVE MAINTENANCE SERVICE FOR: And while AMA and other national and KRAFT — TOWER — KSE — KGL — PCS civic organizations can help in concen trated areas, it is the model publications Complete Parts and Replacements Inventory that truly bring all modelers within reach Licensed and Certified Personnel of each other, no matter how remote their readers may be. We learned about Independently Owned and Operated modeling that way many years ago, with Carl Smith the help and guidance of Flying Aces Fast — Safe Sales — Service and Model Airplane News, and we hope UPS Shipping 615-693-8605 to be able to continue that effort today. M OONEY VS. FOKKER TRIPLANE In March, we published a framework 118 R/C MODEL BUILDER Ace Radio Control ...... 94 INDEX TO ADVERTISERS Prather Products...... 84 Aeromarine Enterprises ...... 115 Probar Design ...... 106 Aircraft Model Products ...... 100 Hobbies + ...... 109 Proctor Enterprises ...... 109 Aldrich Model Products...... 114 Hobby Shack...... 91 Pro Line Electronics...... 86 American R/C Helicopters...... 72 Hoo Inc...... 107 Quarter Headquarters...... 96 Applied Design Corp...... 108 H.R.E., Inc...... 90 Radio Control Buyer's G uide...... 76 Astro Flight. Inc...... 105 Indy R/C Sales...... 87 Repla-Tech International ...... 102 Authorized Radio Control...... 102 JM Glascraft...... 86 Rhom Products...... 103 Avionics International...... 107 J & Z Products...... 92 Rosie’s R /C ...... 96 Barron's Scale Classics...... 109 J.V.S. Products ...... 110 Satellite C ity ...... 111 Bavarian Precision Products...... 88 J-5 Enterprises...... 118 Scientific Models...... 79 Bridi Hobby Enterprises...... 92 Jo Mac ...... 97 S.C. Modeler...... 100 Byron Originals...... 73 K & B Mfg. Co...... 1 Sig Mfg. Co...... 5 California Hobby Distributors...... 99 Kraft Systems...... 3, 95 Oba St. Claire...... 114 Cannon Electronics...... 110 K & S Engineering...... 88 Sterling M odels...... 69 Carr Sails...... 115 Kustom Kraftsmanship ...... 100 Sullivan P roducts...... 68 Cass Engineering...... 94 Jim Messer's Products...... 100 Su-Pr-Line ...... 112 Central Avionics ...... 118 Midwest Model Supply ...... 84 Top Flite Models, Inc...... 77 Coverite ...... 90 Midwest Products...... 70 Tower Hobbies ...... 80, 81,82. 83 Cox Hobbies...... 75 Model Engineering of N orw alk...... 71 Uber Skiver Knives...... 120 Craft-Air, Inc...... 74 Model Rectifier Corp. (M RC)___Cover 4 VL Products ...... 112 Jim Crocket Replicas...... 112 Walt Mooney Peanuts...... 106 Charles Werle...... 115 DuBro Products. Inc...... 85 Sid Morgan Vintage Plans...... 114 Williams B rothers...... 113 Eastern States R/C Champs...... 109 Steve Muck Boats...... 117 World Engines...... Cover 3 Electrocase ...... 93 Bud Nosen M odels...... 89 77 Products...... 113 Exact Miniatures...... 113 Octura Models...... 111 FAI Model Supply...... 107 Orline, Inc...... 101 H O U SE ADS A.J. Fisher, Inc...... 105 Pacer Industries ...... 78 Binders ...... 111 Fli Shirts ...... 117 Peck-Polymers ...... 102 Classifieds ...... 119 Flyline M odels...... 98 Pica Models ...... 98 Flying Scale Models...... 118 Fox Mfg. Co...... 4 Pierce Aero Co...... 108 Oldies But Goodies ...... 104 Futaba Corp. of America...... Cover 2 John Pond O.T. P la n s...... 104 Plans Service...... 116 photo of a future Mooney Peanut, the prototype Fokker Triplane WW-1 fighter. The aircraft could be distin CLASSIFIED AOS guished by its lack of interplanestruts, its Non-commercial (personal items) Rate is 25 cents per word with a minimum ol S3 00 lack of “ elephant-ear” ailerons on the Commercial Rate is 40 cents per word, with a minimum ol S5 00 No man-order discount top wing, and a stab with curved leading house ads knowingly accepted No advertising agency discounts allowed edge. All ads are payable with order, and may be tor any consecutive insertion period speeded I n the May issue, Walt announced that Name and address tree, phone number counts as two words Send ad and payment to the plans would not be published be MODEL BUILDER Magazine. Classified Ads. 621 Wesi i9lhSt Costa Mesa CA 92627 cause he could not get it to fly ... de cently if at all. NORTHWEST CONTROL LINE MODELING Well! You might have thought he had PROPELLERS, proven easy carve method NEWS, monthly in FLYING LINES, regional Suitable for Quarter Scale to full size $3 00 called every Peanut modeler a dummy! CL newsletter Contest results; calendar; Mende. Box 180. Quitman. AR 72131 Such indignant letters, implying that just columns on sport, speed, stunt, combat, because HE couldn’t fly it... blah, blah, carrier, racing; letters, articles Send $5 for 12 WANTED Old-Time sparkigmtion model blah. We passed the letters on to Walt, issues to FLYING LINES. 1411 Bryant Ave.. Cottage Grove, OR 97424 airplane motors magazines and gas powered and here is his answer. race cars of the 1930 s and 1940 s Russell "It looks like we hit a few nerves by HOBBY HORN, hobby specialties: electric Stokes Rt 1 Box 73J Keller TX 76248 not publishing the Fokker ‘Flop.’ I have propulsion systems, parts, and kits; Old Timer also had some letters direct asking for kits; engines, props: rubber kits and parts: WANTED: Old model airplane engines, gas plans. COz Gas Free Flight and R/C; accessories model race cars, kits, magazines, parts and more. Bob Stiff. Write for free listing related items, 1935-55 Arthur Suhr. W218 “ I would rather suffer the criticism of a Hobby Horn. P O. Box 3004. Seal Beach. CA N5866 Maclynn Court. Menomonee Falls. Wl 1000 experts for not publishing, than feel 90740; (714) 894-6223. 53051 that I might have caused a single novice’s tears or frustration . .. after all, the experts won't quit because I couldn't fly a model. MOVING? SEND NOTIFICATION FIRST! "O n e thing I w ill do . . . if you’ll put it ^A tta ch old label here J Attach old label here 1 in your editorial. For $3, I’ll send anyone NAME ! 1 who wants them a set of my working OLD plans (2 sheets, 11x17 inches). I d o n ’t ADDRESS ADDRESS expect a lot of takers, so I can’t print a large quantity to keep the price down. (Plane Print) CITY \ STATE ZIP I Sincerely, Walt Mooney." OK, smarties, you try it. Let us know L Attach old label here / ^ Attach old label here the results. And if you get it to fly well, NAME we want witnesses! NEW MORE ON QSAA ADDRESS ADDRESS A dding to our announcem ent last (Pleas· Print) month about the big Quarter Scale CITY STATE ZIP Association fly-in at Las Vegas, October 11 through 14 ... word now has it there Change of address notices must be received one month before date of issue that new address takes effect. For prompt service, old label MUST be attached. Post office will w ill be at least eight full-scale W W -II not forward copies unless you pay extra postage. Duplicate issues cannot be sent. birds on hand, plus Monty Groves’ fabulous Focke-Wulf 44. Included is a MODEL BUILDER, 621 West Nineteenth St., Costa Mesa, Ca. 92627 Corsair, a Hellcat, Zero, B-25 and P-51. · OCTOBER 1979 119 IN THE BEST CIRCLES, I T ’S f i b e r s k i v e r A PRECISION INSTRUMENT FOR THE DISCRIMINATING MODELER Safe, Rear Draw-Bar Clutch Available in seven satin anodized handle colors: Precision, Instrument-Quality Materials silver, blue, red, green, gold, copper, violet. Complete set in fitted hardwood case; includes Strong-Holding Advanced Collet Design uber Skiver, together with two vials containing Non-Rolling Hex Cross-Section four No. 11, and one each of Nos. 10, 12, 15, and 2 0 ...... $1 4.95 Deeply Knurled, Non-Slip Grip Individual handles (specify color) $5.95 Long-Life, Stainless, Vial of 6 blades (No. 10, 11, or 15) $2.10 Surgical Steel Blades (No. 12 or 20) $3.30 20 g See your dealer, or order direct. Dealer inquiries are invited. MODEL BUILDER PRODUCTS All direct orders sent postpaid in U.S. California residents add 6% sales tax. 621 West Nineteenth St., Costa Mesa, California 92627 OS LOCO WORKS S. Ogawa — Boss Train Man 1 Mr. Ogawa's first live steam locomotive was stolen from a department store some 40 years ago. The insurance award was only $5.00! Note the differences in stack con figuration between the new Baldwin and the OS EVERYBODY HAVING FUN! Porter. Test Track — Mama's Garden 2 For $20.00 we will send you these instructions plus a large drawing of the Por ter. This would apply to a locomotive purchase from us or from your dealer. 3 The same fine workman ship in OS engines is re flected in their steam loco motives. They run on coal or propane. OS Retail Shop — Osaka NEW! 4 The prices for the painted, OS BALDWIN bolt-together, kits (some tapping required) is $2995.00 for coal or pro pane. The price of the assembled locomotives, ready to chug,is $3795.00. Propane Apparatus Dealer inquiries invited. In Stock Now - 6 kits, 3 assembled, both types. 5 The model airplane engine pictured at the bottom is the new OS 61 V F . One of these was awarded each Master's Tournament en try at Celina this year by Retail Shop — Inside World Engines and OS. w arid Engiies 8960 ROSSASH AVE., CINCINNATI, OHIO 45236 TELEPHONE (513) 793-5900 T E L E X 214 557 ÉJglLT TOUGH, TESTED TOUGH . . . JL "That's one of the reasons you cany EVEN FCC WOULDN'T be sure of your signal with an R/C f -'jSuidance System. Nobody asked*/ i us to go this far in producing a φ ASK US TO DO THIS TEST r mew radio system. Even FCC only & "K requires frequency stability to " FOR FREQUENCY STABILITY ' ' ±.005 at —22°F to +122CF. But^r Bwe go further... because these ...BUT WE DBJr new R/C Guidance Systems go 1 ttjirther in reliability than any other J t.005%Tolerance at -30°F to+200°F radio we ever built. No one else * we know tests this tough . .. 1 because as far as we know, no other radio is built this well. : åDOUBLE RANGE TESTING . . . Ί00% . . . Our quality assurance program means you're buying a vstem with the best components md engineering you can get for fiur money. It means we not only put these radios through tough * , fe c ia l testing, but that every radio is long range tested not once,', •'jpjut twice. That’s not a spot check, 3 t’s 100% range testing of every Λ gle radio we make. You can b e ^ ire when it’s a 2, 3 or 4 channel R/C Guidance System f* Features of the series include Hi-Tech open or se(ni-open {Jimbal sticks full size transmitter; 1 gold plated connectors; C-Mos integrated circuit in receiver compatibility with all 3-wire MRC ITadios. See these R/C Guidance Systems at your hobby dealer R/C GUIDANCE SYSTEMS FREQUENCY STABILITY MRC's NEW R/C Guidance System s passed TESTED TOUGHER THAN this dry Ice temperature test with flying colors. FCC REQUIREMENTS MRC MRC'S NEW R/C Guidance Systems available in 2, 3 and 4 channels. MODEL RECTIFIER CORPORATION / 2500 WOODBRIDGE AVENUE / EDISON, NEW JERSEY 08817 Easy to use indexes to help you find what you need quickly