Kraft’s 7C Series systems have long been the choice of expert flyers and contest partici New pants worldwide-both dual (KP7C) and single (KP7CS) stick models. The new MK III KP7C MK III editions now offer these added features: ■ Four-Channel Servo Reversing Switches ■ Dual Rates & Roll Buttons Systems... ■ Choice of High Performance Rugged Reliable Servos, including the new KPS-24 The Best is ■ Wide choice of Plug-In Frequency Modules Discover advanced performance for Now Better yourself-the best really is better.
i ^ a F T
See these competition systems at your local neighborhood Kraft Dealer %
Kraft Systems Inc. · 450 W. California Ave., Vista. CA 92083 · A Subsidiary of Carlisle Corporation Sincel 972 HJH' W ■ ·'* f] *>' The 3.5cc Outboard proved to be a success from the time of its introduction in 1976. In the K&B tradition we have continuously sought for means of improving it. This newest engine is the 4th generation. Last year we also introduced the 7.5cc Outboard. Larger and more powerful than its brother, it was designed for larger boats. It incorporates all the know-how found in the 3.5cc plus many additional features. Both are tough, water-cooled engines with K&B’s Quintuple Porting, Flywheel designed for cup electric starter, and Underwater Pick-up. Each offers the superior control characteristics of out board drive. K&B 7.5cc (.45) OUTBOARD ENGINE
NEW FEATURES FOR ’82 Additional Features All of which make them more powerful and durable. found in the 7.5cc Outboard • Con Rod - machined from high tensile • K&B’s own Super Bearings - developed Mounting Hinges - slotted for up and down strength aluminum stock. Bushed at both by our R&D - will withstand 30,000 R.P.M. engine adjustment · A Long Skeg - for ends. plus, without shedding ball retainers. increased stability. · Propeller Shaft As • Heavier Wall Sleeve - harder and • Propeller Shaft Assembly - the prop sembly - the prop shaft assembly and mating stronger - brass alloy minimizes distortion shaft assembly and mating part of the part of the lower end casting is threaded for ease of replacement of drive cable or during machining as well as during running. lower end casting is threaded for ease of prop shaft assembly, eliminating the need • Honed Piston - honed afterthe grinding replacement of drive cable or prop shaft to disassemble the lower end halves. operation... resulting in a perfectly round assembly... eliminating the need to disas • Built-in Silencer - decibel reading can be piston that automatically extends the life of semble the lower end. lowered to as much as 80 decibles with the the ABC piston and cylinder fit. • A Longer Skeg - for increased stability. insertion of baffles (five furnished with engine) into the exhaust chamber · NEW K&B All Metal Carburetor - easy to adjust for idle and top R.P.M. · K&B’s Own Super On the ground, Bearings - will withstand 30,000 r.p.m. plus on the water and ... without shedding ball retainers. in the air K&B continues to be “The choice ot Champions" K&B MANUFACTURING 12152 WOODRUFF AVE.. DOWNEY, CA 90241 MAY 1982 M O D E L S' MAY 1982
BUILDER volume 12 , number 124 621 West Nineteenth St.,Box 335,Costa Mesa.CA 92627-0132 Phone: (714) 645-8830
STAFF
CONTENTS EDITOR/PUBLISHER Wm. C. Northrop, |r.
FEATURES GENERAL MANAGER W O R K B E N C H , Bill Northrop...... 6 Anita Northrop O VER THE C O U N T E R , lohn Elliot...... 7 ASSISTANT EDITOR john Elliot R /C W O R L D , John Elliot, Jerry Dunlap, Larry Renger...... 9 ASSISTANT GENERAL MANAGER FUEL LINES, Joe Klause...... 20 Dawn Holcomb BIG BIRDS, Al Alman...... 21 H O W T O FLY PATTER N, Dick Hanson...... 24 ART DIRECTOR Jeff Kowalski R /C S O A R IN G , Dr. Larry Fogel...... 26 DRAWINGS BY “ 1 TO 1” R/C SCALE, BobUnderwood...... 28 Al Patterson C H O PPER C H A T T E R , Ray Hostetler...... 29 OFFICE STAFF ELECTRONICS CORNER, EloyMarez...... 30 Edie Downs Mike Whitney ELECTRIC P O W ER , Mitch Poling...... 32 A. Valcarsel PLUG SPARKS, John Pond ...... 35 CONTRIBUTING EDITORS R /C PO W ER B O A T S , Jerry Dunlap...... 40 Al Alman Joe Klause R /C A U T O NEW S, Dan Rutherford...... 42 Jerry Dunlap Eloy Marez Larry Fogel Walt Mooney LO C K H E E D ’ S “ W O O D E N W O N D E R S ” , Walt Muciano ...... 46 Jim Gager Mitch Poling T H O R N B U R G AT LARG E, Dave Thornburg ...... 50 Bill Hannan John Pond H A N N A N ’S H A N G A R , Bill Hannan...... 54 Dick Hanson Fernando Ramos Ray Hostetler Dan Rutherford CONTROL LINE, Dan Rutherford...... 56 Tom Hutchinson Dave Thornburg FREE FLIG H T, Tom Hutchinson ...... 60 Ken Johnson Bob Underwood F/F ELECTRIC C O N TE S T, BillStroman...... 64 ADVERTISING John Elliot Wm. C. Northrop, Jr
CONSTRUCTION MODEL BUILDER (ISSN 0194 7079) is BUCKER JUNGMAN, Gene P ond...... 14 published monthly by RCM8 INC., 621 West Nineteenth Street, Costa Mesa, Cali STRUCK’SO.T. CONTEST WINNER, Henry S tru ck...... 38 fornia 92627. Phone (714) 645-8830.
PEANUT CORBY STARLET, Walt M oo ne y...... 55 Subscriptions: $25.00 per year. $47.00 for CRYSTAL AMANITA, Tyrone Parker ...... 59 two years. Single copies $2.50. Add $3.50 per year for postage outside the U.S. (except APO and FPO). U.S. funds only, please.
Copyright 1982 by RCMB INC. All rights reserved. Reproduction without permis sion prohibited.
Change of address notices must be received six weeks before date of issue that new address takes effect. Send old address with Cover: One way of frightening the opposition! Mike Gay makes a wayward landing app new; old label preferred. Post Office will roach over the model pound during the Clwyd Scale Glider competition, held at Moel not forward copies unless you pay extra Fammau, Wales, on June 28, 1981. Model is a 1:5 scale Schempp-Hirth "Janus" two-seat postage. Duplicate issues cannot be sent. er, built from John Fletcher’s plans, and using one of the GRP fuselages of his manufact ure. Normal controls plus flaps. Photo by Keith Thomas, Frome, Somerset, England. Second class postage paid at Costa Mesa, California, and additional offices.
2 MODEL BUILDER Changing track conditions can servo reverse switch Convenient needle valve send RC cars scurrying into the ing. electronic trim, adjustment knob. . pits for a linkage adjustment that mixing and throttle Exclusive torque compensation — could take laps to complete. Fine tune in the hand mixing control. The driver with Futaba's 3FG some brushed alloy doesn't panic though, because he case. Prefer TWin-stick control? has Total Control on his side. The 3-channel 3FG We’ve built the 3EG model for vou Vvailable A flick of a lever and the system is available with » ith S26 or S27 servos. adjustable dual rate takes over. a w ide range of servo options, too. Ultra mini for 1:12 scale electrics, while
Increase or decrease steering S20 servos are perfect boat and gas car racers favor the servo throw while maintaining full lock-to-lock control. The Gentlemen, choose sour servos. watertight, heavy-duty S27’s. 3FG give» vou a choice, on the And for total performance, The deluxe 3FG/3- the 3FG can be ordered channel sv stem includes An oversteering, R3F triple-tuned receiver. with high-torque, coreless 2-S24 servos. NiCads and sliding car charger. 27 and 72MHz. I · F u n b i motor S24's and recharge 1 instantly able NiCad batteries. ! responds to the pre-set steering ratio and is dialed-in again.
The 3FG system w as developed by and for serious racers. In addition to rate control, you'll also find Track tune your racer from the driver’s stand with the new Futaba 3FG. The RC12Í grips the track with our unique Flex 4 chassis, a totally new design featuring shock- dampened front and rear roll rates and a trailing link controlled beam axle. That gives the RC12i a suspen sion without springs, to isolate the radio and batteries While the tires ot the amazing RC12i follow the contours ot the track, from excessive vibration for maximum traction on evei the central chassis, radio equipment and batteries remain stable lor track surface. phenomenal cornering power. graphite The RC12i WonderCar. \tariLocK d il axle Accepts all populor radio systems. Nobody knows more about building winners New SK duol compound tires than the Team. In just four years our RC12E won an astounding 10 National Championships, winning in every class of compefition indoors and out.
Now there's a brand new winner from Associ ated, the RC12Í. We call the RC12i the WonderCar, be Special Sanyo rocing batteries cause it has handling and road hugging characteristics second to none.
And the RC12i isn't all that's new from the Team. Special "SK" dual compound front tires, VariLock diff axles, Reedy Indoor rewinds, plus McRae Can-Am, Brabham FI and Lola T600 bodies are just a few of our latest speed secrets. Keep up with all the action with your free sub scription to Racing with the Team. Call or write today
Associated Electrics 1928 East Edinger/Santa Ana, CA 92705/(714) 547-4986
1981 ROAR Nationals! Boston - Mike Lavacot/Team Associated wins Indoor Modified. Reedy motors win AM modified classes fo r 4th year in a row. & M U H U tcutq: big: KIT RC-32 THE IMPROVED MARK II Engine: .40 to .50 cu. in. WingSpan: 62 in. KOMANDER Wing Area: 640 sq. in.
Designed by CLAUDE McCULLOUGH
Pre-Cut Foam Wing Sleek Bubble Canopy with Molded Framing NEW! Re-designed Fuselage Structure Jet Style Molded Plastic Cowling Handy Printed Fuselage Sides and Bottom - Build NEW! 36 Page Photo-Instruction Book Directly on the Wood NEW! Full Wing Center Section for Sheet Balsa Wing Covering Sheet Balsa Tail Surfaces Better Fit, Seal and Appearance Pre-Bent Torsion-Bar Landing Gear Rugged 5/32” Formed Nose Gear NEW! Separate Fuel Tank Compartment Step-By-Step 36-page Photo-Illustrated Instruction Book SIG Quality Balsa and Plywood THE KOMANDER IS ONE OF OUR OLD FAVORITES AND THE INSTRUC Hardware Package Contains: TIONS HAD GOTTEN A BIT DATED. DESPITE THIS. IT HAS CONTINUED Molded Control Hinges SELLING STEADILY FROM THE WORD-OF-MOUTH ADVERTISING OF Nylon Control Horns SATISFIED FLIERS WHO LIKED THE GREAT FLYING CHARACTER Nylon Nose Gear Bearing $59.95 ISTICS. NOW WE HAVE COMPLETELY RE-ENGINEERED THE KIT BUT Nylon Nose Gear Steering Arm DIDN’T CHANGE A THING ON THE OVERALL CONFIGURATION. WHEN Tuf-Steel R/C Links A DESIGN HAS AS MUCH APPROVAL FROM THE FLIERS AS THE Aluminum Motor Mounts KOMANDER, YOU DON’T TAMPER WITH THE AERODYNAMICS. FOR AN Nylon Screws for Bolt-On Wing Attachment AILERON TRAINER OR A RUGGED SPORT FLIER, IT'S HARD TO BEAT! HERE ARE THE OTHER STEPS IN THE "LEARN TO FLY RC THE SIG WAY" PROGRAM STEP 1 ■ PICK A STABLE HIGH-WING DESIGN THE KOMANDER IS ALSO STEP 2 IN SIG’S TIME-PROVEN PROGRAM $49.95w $54.95 KIT RC-46 $39.95
KADET MK.l 6 ? 0 KADET MK.11 KADET JR. * STEP 2 - INTERMEDIATE STEP 3 - ADVANCED STEP 4 · EXPERT KIT RC-35 $59.95 I $59.95 w pgfc·. u s »i* ron« KIT RC-29 Balsa Skin Plywood Skm KOUGAR KOMET $69.95 $72.50
See your dealer first! To order direct, add $1 postage under $10. Postage free over $10. NoC.O.D. Send $2.00 for latest catalog of kits, accessories and supplies by SIG and other major companies. SIG MANUFACTURING CO., INC...... Montezuma, Iowa 50171 MAY 1982 Lake Michigan. But now his desire to solve the dirty fuel line problem was even stronger, and he kept at it during all his spare time for about two years. Finally he came up with a filtering device that was inserted in the fuel line just before its entry into the carburetor. Instant success! Several aircraft and engine manufacturers had learned about his experiments, and when they heard the news, they clamored for the device. The young man’s fortune was now made, and though he is not remem bered today, the fuel line filter and the name he gave it has truly gone down in history . . . the Great Lake Strainer! That's probably the longest lead-in to a free plug that I’ve ever written. But anyway, Tom Keeling, of T & D Fiberglass I went to this sex therapy Specialties recently ordered a set of conference on Saturday, and you know, plans to Frank Comyn’s Great Lakes -thatls-the first tinte lve ever gone, six hours Trainer, which was featured in our straight Without once thinking about mo4el March '82 issue. This truly auarter-scale airplanes.'' model should be real popular, and Tom is going to make it a little easier for a lot MISSING PERSON of scratch builders by producing a fully Ralph Hunt, Box 21B, Dassel, MN / “r o m detailed figerglass cowl for it. Write or 55325, saw his cousin Lloyd Hunt’s name call Tom at 30925 Block St., Garden City, in the Mystery Model portion of Tom Ml 48135, (313) 421-6358, and tell him we B i U Hutchinson’s January ’82 “ Free Flight" sent ya. column. They haven’t been in touch for W H O ’S HE? many years, and Ralph would like to N o r t h r o p ' * A lot of new generation R/Cers may contact Lloyd. So in case Lloyd doesn't not recognize the name, but many of happen to see this, will someone please w o r k b e n c h those who flew in the '50’s and 60’s, and give him the word? very early 70’s remember Vern Mac- NAG, NAG, NAG Nabb for his Citizenship radios. (My old Not what you think! In this case, it W H A rS IN A NAME? push-button 465 mHz radio made mil stands for National Air-Racing Group, Back in the early days of aviation, a lionaires out of the battery companies, and NAG Publicity Director Chuck Aro young inventor had developed a small, but it always worked well, and I never spotted our January ’82 cover featuring lightweight pusher biplane that flew had to stand in a long 27 line to wait my Skip Ruff’s Byron P-51, done up in the extremely well. Being a resident of a turn to fly.) paint and markings of Bill Destefani’s small town along the coast of Lake Michi According to Art and Charlotte John Unlimited race plane, based in Bakers gan, near Milwaukee, Wisconsin, he had son, editors of the Gold Coast Radio field, California. the desire to fly across the lake and land Controllers Newsletter, Delray Beach, To quote part of Chuck’s letter: near Grand Rapids, Michigan, a distance Florida, Vern just completed a Super- "I also read through the article by jim of about 130 air miles . . . not much now, Tigre 60 Bluehead powered Top Flite P- Cager on pylon racing with some inter but a long distance in those days. He 47. The eight-pound bird looked good est since I’m involved in full-scale air wanted to do this not only to prove the on its first flights. The radio? A combina racing. worth of his aeroplane design, but also tion of Futaba, Kraft, Ace, and Heath-Kit "To those readers who might also be to establish a small nitch in the history of components. interested in full-scale air racing, you aviation. The irony of it all is the fact that TW O CENTS WORTH might suggest they contact the National though he never succeeded in making In answer to my “ two cents worth" at Air-racing Group (NAG). the flight, he still established a name that the end of Dave Thornberg’s rib-cutting "Membership in the National Air- will never be forgotten in aviation article in the March '82 issue, comes the racing Group is 59 per year (additional circles. following from Erv Rodemsky, Indoor family members are $3 each). Not wishing to risk his life and aircraft World Champ. "Each month, NAG publishes a news in the lake, this young man made num "Your 'Editor’s Two Cents’ worth, letter filled with news, information and erous test flights over land. These tests following ‘Thornberg at Large,’ March photos of air races, airshows and war- proved that the aircraft had the range to '82, is exactly the same system that I’ve birds for its members, and following an accomplish the feat, but one problem used for cutting ribs with this exception: air race, the NAG RAG includes the repeated itself on each te st.. .the jets in use the metal from a TIN coffee can complete race results, including all the carburetor would clog up from dirt instead of aluminum. It has these advan speeds and times of each heat. in the fuel, and cut off the engine after tages: easy to cut with big scissors or tin "NAG members can also train and 50 or so miles of flying. snips; the razor or Uber Skiver won’t dig serve as pylon judges and other race Numerous attempts at filtering the into the edge and ruin your nice filed officials at air races. fuel through various substances, al and sanded curve; and the flash from "The National Air-racing Group is a though improving the situation to some the brad holes is more durable, sharper non-profit fraternal organization with extent, never really eliminated the and thinner than aluminum. Two- some 700 members around the world, problem. As clean as the fuel was when it pound coffee cans flattened out will give including race pilots, crews, race offi went in the tank, there would always be a long enough piece of metal for every cials, promoters and race fans. enough dirt particles picked up in the thing short of 1 /4-scale. For those really "A check in the amount of $9 (plus $3 airborne fuel system to eventually build big jobs, sheet metal shops have tons of for each additional family member) up and block the carburetor jets. galvanized duct material that is a little made out to NAG, Inc., may be sent Through an unfortunate automobile thicker than a tin can." along with the name, address and phone accident, the young man was forced to Erv Rodemsky number to Frank Roncoe, Treasurer, at curtail his own flying, and so he had to 26 Warmspring 77973 Los Arboles, Sunnyvale, CA 94087, pass up the opportunity to fly across Irvine. CA 927U Con tinued on page 104
6 MODEL BUILDER OVER THE COUNTER
A ll material published m "Over the Counter" is quoted or paraphrased from press releases furnished by the manufacturers and/or their advertising agencies, unless otherwise speci fied. The review and/or description of any product by R/CMB does not constitute an endorsement of that product, no' any assur ance as to its safety or performance by R/CMB Kraft Systems has just announced availability of a new servo, the KPS 24 and KPS 24R (reverse). Many new fea tures are incorporated in the design, such as three O-rings to insure the internals stay dry, two ball bearings for complete support of the output shaft, and an eight-ohm motor coupled with a high quality, sealed, carbon button type of pot for top servo performance (45 oz. in. of torque, 0.30 sec./60 degree transit). Ford Ranger R/C Pickup truck, in 1/10-scale, from MRC/Tamiya. All Kraft systems may be ordered with the KPS 24’s, and they will work properly listing of the “ Bill Barnes, Air Adven with any Kraft system from the Series 72 turer-Famous Fictitious Flyers Series,” to the present (excluding the "A ” send a SASE to: Gordon Codding, 3724 series). The accessory pack includes John L. Ave., Kingman, AZ 86401. mounting hardware, plus five ★ ★ ★ additional, different output arms/ Byron Originals has announced a wheels for various linkage setups. One brand new catalog/brochure of over 60 servo wheel is blank so that holes may be pages in color, containing details and drilled for conditions requiring special specifications of its complete product pushrod angles/geometry. Kraft line, plus product reviews of many Systems, Inc., 450 W. California Ave., items. Send $5, refundable against your Vista, CA 92083. ★ ★ ★ For all modelers who have been around for quite awhile, the name “ Bill Barnes” should set off a few chimes. With assistance from the Bill Barnes Fan Club, Gordon Codding has, working from original drawings and sketches by Frank Tinsley, who created the Bill Barnes designs, re-created the "Transports” and early fighter designs such as the "Stormers", and “ Snorters” in 1/4-inch and one-inch scale. Most drawings contain ribs, formers, and in Astro Flight's 075XL electric povwr flight Radio operated self-righting is feature of this some cases, working landing gear. For a system. catamaran by Pop Up Mfg. Co.
Sij/s updated Mark II Komander. Dumas Hot Shot 45 for K&B 7.5 outboard.
MAY 1982 7
EWORLD Text and photos by Larry Renger, Jerry Dunlap, and John Elliot
HIA SHOW reviewing the show for my employee, it takes up two floors of the Convention by LARRY RENGER Mattel, I did manage to keep an eye out center with booths and numerous other Dallas! There is a name that conjures for interesting goodies and information functional rooms as well. Ed Sullivan up all sorts of images. Football games relevant to the hobby, and especially to would have loved it . . . a really, really, with gorgeous cheerleaders, oil, cattle, the sport model aircraft enthusiast. It is big, big shew! huge TEXAS size hats and boots, the interesting to note that this is not an Let’s start reviewing the interesting Kennedy assassination, WIDE open especially great show for the modeling items with the aircraft, then move on spaces, J.R. and his happy family, more enthusiast, in that the orientation is through engines, tools, and materials. WIDE open spaces, and people who say toward the crafts end of the business, Most offerings were new versions of "Howdy" a lot, all flash through my and most manufacturers of interesting standard types of aircraft, but both Cox brain. The reason for all this is the fact R/C goodies make their big pitch at and Hasegawa hit the market with that I was fortunate to be able to attend Toledo. As you will see, however, there entries in the ultralight area. Cox has the 41st annual Hobby Industry Conven was plenty of interesting stuff to look at, produced the "Phoenix" ultralight R/C tion and Trade Show held in the Dallas even though it was a small percentage of powered hang-glider. It features 64 inch Convention Center from January 31 to the overall show. The HIA show not only wingspan, aluminum construction frame February 3 of this year. runs for four full days plus two days of work and rip-stop nylon wing. Power is Although I went with the purpose of HIA business meetings and workshops, the Tee Dee .09 as shown, but it will fly
*
Dallas HIA. Leisure Dynamics/Cox "F ibrini" Dallas HIA. One of many fine indoor models Dallas HIA. Hot new .21 from HB Engines, electric powered R/C sport model. from Two Worlds International.
Dallas HIA. A smaller Cowboy! Craft-Air's Cowboy 15, a docile Dallas HIA. Joyce Mallerman (left) and Betty Boyle show off trainer. Sterling's new Piper Vagabond.
MAY 1982 9 Dallas HI A. Leisure Dynamics/Cox Phoenix Ultralight R/C for .09 to .11 engines.
Dallas H IA . M R C 's big fo a m ie Cessna Dallas HI A. Midwest ARF foamie J-3 Cub, Skyhawk for .35 engines. for .09 to . 15 engines. with any .09 through .11 cu.in. engine. strictly hand launched. The radio is Construction is in the ARF class.andyou tucked unobtrusively up under the can control it with either 2 or 3 channels canopy (wing? sail?). The "MontBlanc” of radio. They had a continuous running has a 75.5 inch wingspan and features a film of the Phoenix flying. It seems to be frame made of fiberglass tubing and a smooth and docile model, probably aluminum hardware. The sail is pre-cut not capable of more than a carefully and sewn. They also point out that you executed loop. I would hate to get into a can fly it either as a powered craft or as a negative "g ” situation for long and let slope glider. that airfoil reverse. Somewhat off the track, but also from Hasegawa also showed a powered Hasegawa, is its new 1/40th scale Hover hang-glider, the “ MontBlanc” . It was craft. This is an unusual project which powered by an Enya .09. Unlike the Cox uses a .19 to .25 size engine to provide Dallas HIA. Intermatic spray unit, with many model which may ROC, the Hasegawa is the lift and an electric motor to provide plastic parts.
Dallas HIA. Hasegawa 1/40-scale Hovercraft fo r.19 to .25 lifting Dallas HIA. Pactra's spray can colorsto match Monokote's film engines. Electric propulsion. colors!
Dallas HIA. Enya's .40 and .35 four-cycle engines. Dallas HIA. Olfa Rotary Cutter, an extremely sharp pattern cutting instrument.
10 MODEL BUILDER and the airfoil is flat-bottomed. Styling, as you can see, resembles a combination of the old "Sport Trainer” U/C RTF and a "Warlock .05.” With Cox undergoing the significant changes it has in the last year or so, it was a pleasure to see that they are still making and marketing their previous three"foamie” models; the “ Sportavia,” "Piper Dakota,” and "Cessna Centurion." I have flown or observed all three of these aircraft and they are uniformly good fliers. As long as we are into the charms of polystyrene expanded bead foam (or popcorn plastic, if you will), let’s look at a couple of other manufacturers. Cox is not the only manufacturer to display an extensive line of foamie ARF airplanes. MRC was featuring its absolutely hu- mongous "Cessna Skyhawk.’’ This mountain of foam takesa ,35engineand is large enough to fly politely as a trainer with all that power. Wingspan is over 6 feet! The airplane comes with engine, all Toys for Tots. Santa arrived by Goodyear blimp "Columbia" to collect donated toys. Mel Santmyers' Tomahawk in foreground. Vera Jordan photo. propulsion.Operation requires a 2 or 3- channel radiosystem. It really looks like it would be a fun way to clean the leaves off Toys for Tots. Silver tongued Sam Wright talked for two straight hours during air show, your driveway! The box claims that the keeping public properly informed. Vera Jordan model works on all surfaces, solid or liq photo. uid. Definitely a year-round type of control rods, hinges, and control horns model. factory installed. Tank and nosegear are Another new aircraft offering from installed, spinner, prop, glow plug, and Cox is the "Fibrini” . No, I haven’t any muffler are all included in the kit. idea about the significance of the name. To back up the “ Skyhawk" as flagship The model, however, should survive the of its line, there are two smaller trainers, peculiar name choice, because it is a the "Trainer Hawk II" for .15 power,and really slick, sporty, electric R/C sport the “ Eagle", which comes with an .049 model. With its shoulder wing configu Testors engine already in place. To ration and smooth lines, this is clearly a please the glider set, there is the "Young model intended to do more than lumber Star” , which also includes an .049engine around the sky. The model is ready to fly, and power pod to back uptheslopeand less radio. I presume that if you use the high-start capability. For the more Cox/Sanwa equipment, the installation advanced enthusiast, there are two is virtually instantaneous. Performance high-performance models, the 1/10 IM.W. Expo. MB's power boat columnist Jerry as shown on the films was pretty sporty. Dunlap, (left) with Expo Chairman Bob Pfeif scale "Messerschmitt” and "DeHavil- Color is bright red; could they have had fer. Jerry supplied photos and report on this land Chipmunk.” The entire line of Ferrari in mind? Wingspan is 40 inches, first annual affair. models speaks of quality molding and
N.W. Expo. Wayne Jessee and Phil Gerlicher (right) for Orline R/C N. W. Expo. Jim Duffield (left) and Larry Van Osten, RCH car Aircraft. Showed Deweyville Spcl., Sopwith Pup. and Buccaneer. accessories, almost next door to Model Builder’s office. MAY 1982 11 N. W. Expo Bob Dodgson and daughter. Heather, admire his handi- N. W. Expo. Mark and Fran Schwing of EMS, showing new Eagle work on Camano fuselage. servo for 1/4-scale, 1200 mah battery packs, etc.
N. W. Expo. The voice of Kraft Systems, expert modeler, classic N. W. Expo. Ralph Roppo holding Roger Newton's sport 40 un- Ford automobile restorer Dan Lutz, shows new dealer display rack. limited, and showing scale Bell 222 and Hughes 500D helicopters. good engineering. The models are had a delightful version done up in the make it lift as hard as it can” . This model nicely pre-painted (so, by the way, are classic Cub Yellow format. Assembly of uses a relatively low aspect ratio wing Cox’s aircraft). this model is clearly much simpler than with an undercambered airfoil, and a Last of the ARF foamies was the kit for for a classic balsa built-up model, but very large lifting stabilizer for a total Midwest’s " J-3 Cub.” Touted as a trainer, somewhat more work than the true RTF lifting area of 870 in2. That gets the wing this is actually an excellent sport scale and ARF models. loading down to 6-3/4 oz/sq.ft. You can model which you can decorate beauti While in the Midwest booth, one fly the model on 2 channels or add a 3rd fully in several configurations. Area is could not help noticing its new glider. for spoilers. Construction features full 300 in2, and wingspan is 48 inches. Actually, the reason was that Ed Rogala length, one-piece plywood fuselage Engine is rated at a .09 to .15, and kept pointing at it and talking about it. sides, a bolt on wing installation,and the controls can be anything from 1 to 4 Otherwise, you could not have missed usual Midwest policy of filling those channels. Jim Newman has demon it, as it was the largest model in the empty sapces in the kit box with useful strated that this model makes a gorgeous booth and right out front. The new hardware instead of tissue paper. "L-4” observation plane when painted model is called the “ Soarer,” and is a 2- Another new glider was prominently in weathered “ Normandy Invasion” meter design. The design philosophy displayed not twenty feet away in the markings. In addition to the pieces used in this aircraft is the classic "pack in Top Flite booth. This model also fits in shown in the photo, the Midwest booth all the area you think you can, then the 2-Meter category, but is about as far
N. W. Expo. Paul Kinney for C.B. Associates, with Kawasaki, Kioritz N. W. Expo. Bob Benjamin has been elected to newly-formed inter engines, many BIG Bird control fittings. national Society of Aviation Artists. Also wide interest modeler.
12 MODEL BUILDER N. W. Expo. Bob Welch holds electric powered "Miss Budweiser". N. W. Expo. Dave Redden holding forth for Tower Hobbies and its Many Tamiya and other car accessories. many in-house hobby items.
N. W. Expo. Bruce Batch, Paul Dunlap, and Bryan Batch, showing a N. W. Expo. Louise Cummings and John Gorham of Gorham Model wide assortment of hobby items. Yes, EK Logictrol still breathes. Products, showing full range of choppers imported and domestic. away in design philosophy from the and releasable tow hook. Deciding be plastic wheels. Spans run just under 10 "Soarer” as you can get. The glider is tween the two gliders presents an inter inches. Next up are the Mini-indoor called the "Metrick” and was designed esting problem. You would have to Planes. These are living room fliers with by Scott Christensen. The model is much examine your own flying ability, condi a very thin plastic covering material smaller, with a wing area of 600 in2 and a tions, and any competition rules you fly provided for all but one in that series. full flying, non-lifting stabilizer. The under to make the choice. The exception is known as the "Hum wing airfoil is semi-symmetric, having a A very welcome addition to theshelves mingbird’’, and it is tissue covered modified Eppler 205 configuration with of your local hobby shop will be the line because it is a working ornithopter. It is lots of “ Phillips" entry. Construction of new indoor model aircraft being cute, it really flies, and you get a moder emphasizes strength to withstand high imported from Japan. They have several ate amount of the linkage and hardware powered winch launches and speed lines of models of varied levels of diffi pre-molded for you. Next up the line is runs with heavy ballast. Wing loading is culty and, thus, performance. The most the Tournament series of beginners specified as being in the 7 to 8-1/2 rugged are the “ B-planes", a line of indoors models. These perform impres- oz/sq.ft. range. You could go as many as simple, all sheet balsa models featuring 4 channels if you opt for both spoilers plastic prop, wire landing gear, and Con tinued on page 100
N. W. Expo. Dave Schadel shows the 3- N. W. Expo. Hugh Milligan and daughter N. W. Expo. York Daimond and Joe Yamada channel wheel "Championship Series" unit. Fiona with Specialist radios. ready to answer questions about Futaba.
MAY 1982 13 &(/έΚ£β JUNGMAN f m By GENE POND . . . Here's a lightweight BIG Bird in quarter-scale that will give you the realistic aerobatic capability you might only expect from a smaller model.
• The idea for this plane was born in the been converted to use the 180 HP Ly of 1965-66 the Swiss aero clubauthorized spring of 1980. I had wanted to build a coming engine. The forward cockpit the firm of Max Datwyler, at Bleinbach, new biplane to fly in IMAC competition. had been removed and forward turtle- to install a new set of improved-perfor It had to be slow in flight and large deck modified to fit the new engine and mance wings (symmetrical section) enough to be highly visible. Also, it had cowling. The paint job was simple but designed to improve inverted flight. to be fairly simple to build, yet have good looking. It was yellow overall with With these new wings attached, inverted attractive lines. light blue and white stripes on the fuse performance of HB-URN was increased I had been looking through full size lage. dramatically. Unfortunately good things aeroplane publications and various This plane had been flown by Arnold don’t always last. While flying HB-URN, aeroplane books for ideas for a new Wagner, a Swiss pilot, to eighth place in one of the Swiss club pilots attempted an plane. Then I found it . . . there it was, in the 1964 World Aerobatic Champion outside loop from an altitude of only 600 Profile Publication No. 222, a Bucker ships at Bilbao, Spain. Once back in feet. The plane crashed inverted, totally lungman BU 131B in Swiss markings, HB- Switzerland, Wagner complained about demolishing the plane and killing the URN. This particular plane was the the inverted flight capability due to the pilot. property of a Swiss aero club, and had flat-bottom wing section. In the winter Now that I had decided on the plane I
Bones of the Jungman. Tail surfaces are a sheet core with ribs on each side. Construction is Fiberglas cowl is formed over this carved foam very basic, just lots of it! Original Jungman was two-seater. male m old.
14 MODEL BUILDER wanted to build. I needed a good set of the Webra .90 to obtain more power. for high stress areas. Install all fuselage three-views to work from. I found that Then found out I would have to cut out doublers and wing saddle doublers. Bob Holman’s catalog listed one for the half the side of the cowl to install the CracX fuselage sides and longerons at Jungman 131B in 1/8 scale, Catalog No. pipe, so I gave up that idea. Then I after end and bend in per top view of 2956. These three-views show two Jung- installed an original model Quadra,and plan. Epoxy sides and longerons later, mans, one with the original 105 HP Hirth performance improved considerably. after fuselage assembly is completed. motor in British markings, the other one The plane will now make a full vertical Nail fuselage upside down on top of in Swiss markings, HB-URN. Just what I climbing roll before it slows down. plans from F-3 to F-7. Block up after end had wanted! There is more than ample power for back to tail post and square up tail post I scaled the model 3 inches to one footsport flying the plane with either the Fox 90 degrees to board. Install 1/4 inch sq. (quarter scale), which comes out to 72- Twin or the .90 on a reduction drive. cross braces and diagonal braces. Install 3/4 inch span and 1400 square inches But as I built the model originally to fly in 1/32 ply gussets on all cross braces to area. The model, with the Quadra IMAC competition, I could still use increase strength of joints. engine installed, weighs 15 lbs, 4 oz. more power than I now have, to go Turn fuselage over and install bulk I originally designed the model to fly through the vertical maneuvers. I am heads from F3 to firewall. Set the firewall with a Fox Twin. I had one of the first now looking at one of the new Super at 2Vi degrees right thrust. This is impor production run models. I had a little Quadras . . . maybe this would give me tant .. . you need it. Install cabane sup problem with break-in and misfiring, so the additional power I want.. . Hmmm. ports and brackets on bulkheads No 1- I sent the motor back to Fox for up CONSTRUCTION NOTES 1/2 and No. 3 with epoxy glue. Now dating. During the time the engine was FUSELAGE install the rest of the bulkheads and in the mail, I installed a non-piped Cut out the 1/8 balsa side sheeting stringers from F4 to F110. Webra .90 on a belt drive (Cline Drive). pieces and assemble pieces over plans. You can either plank the turtledeck or This flew the model very well, but lacked Mark locations of bulkheads and side use rolled sheet. I planked the whole the vertical performance I desired. I framing on inside of sheet sides. Make thing, it was not the easiest way to go, debated about installing a tuned pipe on sure you have one right and one left. but I think it makes the best looking job. Install 1/4 inch square longerons and Install the 3/16 x 1/2 tapered side vertical framing on inside of sheet sides. stringers. Notch out stringer for forward I used Willhold Aliphatic glue for all side sheeting from F3 to firewall. See the general construction, and epoxy glue side view.
Another view of carved foam cowl mold. Balsa and spruce are used throughout the construction. Only modification is removal of dihedral Wood bulkhead guides shaping. from both wings to improve rolling and knife-edge symmetry. MAY 1982 15
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Jt*í'· V #*%» v* >2řyZjtóe. /2»; A/*?*»■*») /l*.” y«o, 4-j'***· .V” check the wings’ incidence throughout strut and cabane installation. Thecabane and interplane struts are designed to be adjustable, to change incidence or to remove wing warps, by use of washers inserted between ends of struts and wings. Cabane struts are bent out of 1/8 inch steel welding rod, and are made in two halves to plug in from each side of the fuselage. After assembly and alignment of cabanes, cover struts with 1/8 x 1/2 spruce grooved out inside to fit on both sides of the struts. Interplane struts were made from 1/2 inch streamline aluminum tubing with 16 Ga. steel bolting pads at each end. Interplane ‘X’ bracing was made from 1/16 music wire. Install the interplane The Bucker Jungman at one-quarter size w ill take geared 90's, twin or single 1.2*5, and Gene's struts after cabane struts are installed is now powered by a Quadra, for that straight up power. and secured. Fit the struts completely. 18 MODEL BUILDER FUEL UNESr JOE KLAUSE PHOTOS BY AUTHOR P O. Bo« 269* Lagun« Hillt. CA 926S3 • This is the last column of the mini engine was peaked at full throttle prior series on dynomometer testing. In the to taking readings. In the accompanying February issue, engine performance was photograph, you can see how the opera discussed in terms of brake horsepower ting engine swings the pendulum (BHP). This led to computation of BHP weight. When everything stabilized, the by using a dynomometer to measure amount of the swing was indicated by torque and a tachometer to measure the pointer at the rear of the dyno shaft. RPM. To compute BHP, simply plug Subsequently, a torque gauge was ap those two figures in the following plied to produce the same indication, formula: and then the torque was read from the BHP = (Torque in ounce-inches) (RPM) gauge. The ten prop-load tests produced the 1008400 numbers shown in Table 1. If you care to The March column contained photo plug them into the above formula, graphs of various aspects of a reaction you'll come up with the ten BHPfigures. type dynomometer. These, together It’s a very easy computation . .. espe with the accompanying text, should cially with modern-day pocket calcula have provided a good idea of how this tors. The time involved is almost type of dyno works. This third part of the insignificant compared to the actual The Fox Eagle III .60 R/C engine swings the series, after a one-month rain delay, is a engine test runs. pendulum weight on the author's dynamo brief walk-through of an actual dyno test meter. Torque gauge takes reading later. that will also show how BHP and torque OK, let’s graphically illustrate all these numbers. On the first combined graph, curves are constructed and what they smooth transition. There is no sudden torque and BHP have been plotted can tell us. peak of power. It should throttle against RPM. The number atop each Let's get on with it. The engine used smoothly with a good, properly adjusted plotted point corresponds with the test for the test is the Fox Eagle III .60 R/C carburetor. Third, torque loss is very number from Table 1. If we connect engine. The test conditions were: modest till slightly after peak BHP. Temperature 68 degrees F these points with a line, we’ll have the Fourth, the curves give you solid mean Dew point 32 degrees F BHP and torque curves shown in the ingful numbers to help you to decide Sea level pressure 30.03 second graph. Voila! The fruits of a about whether or not to buy theengine. Test elevation 800 Feet dynamometer test! That’s considerably betterthan nebulous The fuel was 5% nitromethane, 75% If you’re thinking, “ Big deal. What’s so hangartalk suchas,“ A real powerhouse." methanol, and 20% Klotz KL-100 lubri neat about a couple of snaky lines?” My Those are pretty good reasons for cant. After engine break-in, the Fox answer is that they tell us quite a bit having the curves. Wouldn't it be nice if muffler was used throughout the test. about the engine. The major things are: they were available for all engines? This configuration and nitro content First, peak horsepower occurs at 11,500 Guys, that’s it for this series, except for fuel is the most likely combination that RPM. That means you should use a prop a parting reminder. The best so-and-so modelers will use with the Eagle III. that produces about a thousand less displacement engine won’t help a bit if During a dyno test, various loads are RPM on the ground. It will unload in the you build a lead sled. Power's fine, but imposed on an engine. Each load test air and increase to the approximate RPM don’t forget wing loading. As a brilliant produces an RPM and torque reading. for peak BHP. To me, this curve is also a aviation pioneer once said, “ Simplicate, The loads are varied by using different very vivid, visual reminder of the impor and add lightness.” size props. Ten different size props were tance of using the right prop on an used on the Eagle. With each prop the engine. Second, the BHP curve has a Con tinued on page 66 20 MODEL BUILDER Prototype of new Sig 1/4-scale J-3 Cub, built by Ken Breiting, Malcom, Iowa. Powered by Webra 60 speed at this time. Weighed 15 pounds at takeoff. Alman's Sig clipped-wing version w ill be tested with methanol and diesel engines for comparison, for coming product review. • My wife can’t help but laugh at the those ads the stuff our “ wish-books” are imported social diseases), and most of us way I lay in bed and read my model made of? have a list almost as long as our arms. The magazines. Actually it’s not the way I lay And as I pour over the myriad of ones at the top of my list just happen to that gets the guffaws, but how I read; I advertisements, I usually get a case or include some of these ads. start at the back where most of the ads two of the “ peeves.” Now you know Now it stands to reason that no manu are. I can’t believe that I’m the only one what peeves are; everybody’s got ’em facturer is going to bad-mouth his own who does this because, after all, aren't (no Clyde, it’s not one of the latest product, so naturally, any and all ads you read are gonna tell you how super-good the products are. We either have to go along with the pretty pictures painted for us by the superlatives, or we look for someone who has tried that particular item and find out what he thinks about it. However, with a new product it’s often impossible to know how valid the claims are until we try it ourselves. Okay, let’s look at the ads for gasoline engines. All other things being any where near equal, there just ain’t no substitute for cubic inches when you’re talking power. And obviously, there are quite a few different engines available at this time. And just as obviously, each one of these engines has an optimum application, in terms of aircraft size and/or weight. Yet many of theseengine people want us to believe that tneir powerplant is "the engine for all seasons and all reasons,” and back up their claims by throwing nice looking RPM and horsepower figures at us. But as nice as these numbers look, they're abso lutely meaningless. Why? Because with out mentioning what specific prop was used, those RPM and HP readings don’t mean a damn thing. There's no doubt in my mind that the J. W. Jones (last month's trailer man) w ith his assembled Fleet. Flies with K ioritr power. figures presented are quite accurate . . . Member of North Texas Miniature Aircraft Association. the only problem (and it’s a biggie) is MAY 1982 21 with just a few short years ago; these engines can easily stand on their own merit, now. ALTERNATIVES Okay gang, now that I got my catharsis out of the way, let’s pick up where I left off last month. I don’t know what’s happened to our thinking about BIG Birds, but it has become stilted in many ways. The term, “ Quarter Scale,” is used by everyone to describe just about any BIG Bird . . . which, of course, is absurd. And the ridiculous idea that the only way to enjoy BIG Birds is to fly with a gas engine pervaded our ways and means; there ARE a number of viable alterna Save those servos during transport with sur tives to the gasoline burner, as you’ll face "Keeper". Takes strain off servo gears, etc. Cut from scrap 1/4-inch ply, line cut-out soon see. with felt tape. Slip over movable surface, strap I’m reminded of the conversation with rubber band. Don’t forget red flag! between Archie Bunker and wife Edith after they’d met a very obese classmate that a small and very inefficient prop had of hers at their 30th class reunion. to be used to achieve those very high “ Edith,” sez Archie with a scowl on his readings. And that means if you used the face, “ we both looked at the same guy. Terry Hodges, Farmer Branch, Texas, with his same prop (assuming you could find out Howcum I saw a great big blimp and you Webra 91 powered Balsa USA Cub. Smiling the size) or tried to match that HP, all saw a beautiful person?” Terry says it’s 14 pounds of pure flying fun, you'd get would be a reasonably fast "Gee, I don’t know,” replied Edith. and his first BIG Bird. taxi, a lot of noise, and an absolute And then after a moment she smiled, these guys have to buy a gasolineengine guarantee to become an accident just and added, “ But I think you’re beautiful for their first venture into the realm of begging for a place to happen if you too, Archie.” biggies? Why not make the transition as were foolish enough to try a takeoff. Archie Bunker a beautiful person? easy as possible for them. Since just This horsepower race has become a Well, Edith thinks so .. . and why not? about every R/C’er already has at least game of numbers that can be played by Beauty is in the eye (or ear) of the one sixty and/or ninety, why not "allow” anyone who has a pocket calculator. I beholder, so your willingness to accept him to start with one of the many kits prefer to know how many pounds of the way an aircraft looks, flies, and available that were designed for these thrust can be delivered with a specific sounds depends quite a bit on whoyou size engines. Of course he can get a BIG prop; yet, even here it’s not cut and are and what your expectations are. one-lunger if he wants to, but then he’s dried, because static readings are one Even though the percentage of guys faced with having to re-engineer that thing, but it’s how your bird flies with a who lean toward scale is higher in the same kit to insure it’ll have the necessary particular prop that’s really the bottom BIG Bird category than it is with those strength and integrity to handle the line. Also, I’m never sure what kind of who fly the smaller stuff, you’ve still got increased vibration and the stress caused "fish scale” was used to obtain the thrust one helluva lot of fellows to whom the by virtually doubling its normal gross readings I’m being told about. name of the game is flying, and they’re weight. It all boils down to this; don’t pay any not at all embarrassed to be caught Look . . . when someone first gets into attention to RPM and HP figures when putting a non-scale or un-scale biggie R/C, he’s usually told to start with a fair the prop size isn’t included with the through its paces. sized, stable bird that will allow him to other data; and do try at least two or Although our BIG Bird movement is concentrate on learning. Well, what’s three different props in the air to pin relatively new, we’ve already done an wrong with this same approach for guys down what’soptimumforyour BIG Bird. enviable job of establishing many myths trying BIG Birds for the first time? They’ll I really don’t understand why we get this and perpetrating at least the same end up with a ten to fourteen pound air idiotic treatment in advertising, because number of old wives tales . . . which plane that’s easy to fly due to the out all the engines are darned good,and vast newcomers are blatantly told to accept standing wing loading, and it can be improvements over what we had to fly as the gospel. Why, for instance, must built stock; a really relaxing project. In Fort Worth's own Chuck Cunningham with his "30% Flybaby". At Willaert, Carollton. Texas, with A&M Twin .90 Drive on Charlie Span 8 feet, 17 pounds. Quadra. Chuck is Chapter 21's Vice President. Viosca's Big Stick. Power and sound awesome with 22x10 prop. 22 MODEL BUILDER 4-40 ROD & CLEVIS/PUSHROD SEMI-FLEX GOLD-N-ROD COMING FROM C. B. HD HORNS ON SPLIT ELEV. OFF BOTH ENDS OF SERVO ARM. OF COURSE BELLCRANK H .D . SER V O MUST BE SOLIDLY ANCHORED THE LONGER THIS DISTANCE IS, THE BETTER YOUR CONTROL SYSTEM TO PLY PLATE. WILL BE. DEPENDS ON LENGTH & SIZE OF FUSELAGE. CROSS PIECES CAN BE MADE FROM SOLID STEEL OR ALUMINUM 13/32" THICK). MOUNT SERVO ARM JUST TIGHT C.B. HEAVY DUTY BELLCRANK ENOUGH SO THERE IS NO SLOP. GOLD-N-RODS CONNECT TO ANCHORED ON PLATE. ENDS (MAKE BOTH THE SAME). CLOSE SPACING OF WING RIBS GIVE USE 4-40 ROD & CLEVIS FROM CRANK TO GOLD-N-RODS GOOD SUPPORT. H.D. HORNS (SAME AS ON ELEVATOR). ------■ s RUDDER CONTROL © GOLD-N-RODS MUST BE SUPPORTED EVERY 4-5 INCHES. H.D~ Ψ SERVO HORNS ON EACH * SIDE OF RUDDER. NOTE: SERVOS MUST BE MOUNTED ON HARDWOOD BEAMS... A PLASTIC TRAY IS A NO-NO. my club, the 114th R/C Aero Squadron, openers, you won’t be swinging a typi work very well. I mounted the Eagle in four different hard-core small airplane cally small prop on that sixty or ninety my venerable Aeronca C-3 and made people took on a Balsa USA Cub or one when it’s residing in your nine-foot bird. about a dozen flights on glow fuel of the Nosen Kits (the Citabria seems to Instead of an 11x7-1/2 or a 12x6, you’re before converting to the diesel configu be the favorite), built them with just a gonna be using something between a ration. I’ve only bench-run the diesel so few small personal touches added, stuck 14x4 and a 16x6, so the prop is going to far, but should have some interesting a ninety up front, and had a ball. Terry be moving much slower with a lot of that comparisons and data to present next Hodges is one of these fellow clubmem- objectionable high-pitched whine elim month after I get at least an equal bers, and as you can see from the photo, inated. Couple this with an effective number of flights running on diesel fuel. he’s very happy with his choice. (I think a muffler and low or no-nitro fuel (less of There are a few other considerations ninety is too much for these light birds, that sharp bark), and you’ve got a much for power: have 77 Products convert and that a good sixty will take care of the more acceptable sound. your engine to ignition; or flying some mild aerobatics.) Then, there area lot of guys who don’t thing like Bob Boucher’s 90 inch, 8-1/2 I’m well aware of the reasons given for mind the sound of a methanol engine pound, (really) Quarter-Scale Velie going to, and using, gas engines. And when it's turning so much slower with Monocoupe with an Astro 25 electric I’ve been equally guilty of unnecessarily that bigger prop and are content to stay motor and reduction drive. The electric pushing these big engines in lieu of the with that combination (don’t forget route would be a good way to go for the smaller ones whenever an individual what Edith said...). surprising number of R/C’ers who have would mention that he’s interested in And where is it written that you’ve an acute flying field problem due to BIG Birds. Let’s take a good look at the gotta stay with methanol? Did you know noise. "stout” reasons we're so quick to throw that a diesel conversion for your engine 2) Gas engines are very inexpensive around with impunity. is a very viable option, and will not only to run, which can make for a large saving 1) Because they swing a larger prop at allow you to swing a larger prop more over a year if you’re a hard-core flyer. much lower RPM, gas engines sound effectively than you normally would, but Even though too many of the figures much more realistic than the angry will easily match the highly touted I’ve seen and heard have been blown mosquito-like noise of the methanol realistic sound of gas engines. Davis out of proportion, it’s true that fuel for a burner turning its typically small prop. Diesel Development has diesel conver gas engine averages out to be one- This is true as far as it goes .. . but sion kits for most of the popular engines, quarter of the cost for the same amount don’t go away because there are a few and from what I can tell about my Fox important points to consider here. For Eagle III conversion, they should all Con tinned on next page MAY 1982 23 By DICK HANSON . . . Answering the questions you were afraid to ask about the installation of mechanical retracts in your pattern bird. • Judging from the phone calls I receive, many fliers are a little frustrated by the work required to install mechanical retracts in pattern birds. Generally these are tricycle gear set ups. We have tried many arrangements, but the one we are describing here is the simplest and most fool-proof setup we know of. It requires only one 180° servo of moderate power and speed. We use the )R 203, the Futaba S-8, or the O.S. Cougar retract servo. These servos all operate in a similiar fashion, that is, they shift approximately 180° when switched. They are not adjustable as to travel (not proportional). The mechanical retract systems which fit this setup are the Southern Pro (Dave Brown), the I.M. (Circus Hobbies) the Royal, the Violett, and probably a few others which don’t come to mind at the moment. The construction described here is for Continued from previous page specifically for chainsaw and blower 3) A gasoline-powered bird flies of glow fuel or diesel fuel. However, types. better than its glow or diesel-powered that’s not the whole story, either. Since All of these very tangible savings add counterparts. most guys already have that sixty or up and narrow that initial cost gap Now that’s a bunch of horse-puckey; ninety, they wouldn’t have to fork over a considerably, so much so that any differ work out your wing loading and power bundle for another engine. ential is hardly worth considering. But loading formulas and see what you get. Also keep in mind that we’re talking even if that cost gap differential re Because the wing loading of your lighter about building a bird that’ll weigh be mained fairly large, with the cost of bird is so favorable, you're gonna end up tween 30 to 50 percent less than its entertainment being what it is today, with an effective power loading that Quadra-powered cousin, which means seven dollars for a gallon of fuel that’ll comes mighty close to that of the much that standard, less expensive hardware give a weekend of flying fun ain't a bad heavier aircraft. The wind here in the and landing gear can be used .. .safely. banana in my book. Dallas-Ft. Worth area is usually quite And don’t forget that 14 to 16-inch Regarding diesel fuel: even though it healthy, but even my lumbering, 15- props cost less than 18 and 20-inch does cost almost twice as much as a low pound Aeronca C-3 handles well; and I props. nitro mix, the diesel will easily yield haven't noticed anyone else with a 15- Another point is the cost of the kit twice the mileage per ounce. . . so prac pound BIG Bird having a tough time, itself; those designed mainly for glow tically speaking, it would cost the same either. engines cost less than the ones designed as five percent glow fuel. Okay, let me wrap this up (for now) by 24 MODEL BUILDER foam wing aircraft. We have used it on Tipos, Curares, Magics, EUl-As, Phoenix, plus many other designs. To eliminate possible wing fracture at the wheel well, we use the plate approach shown in sketch (A). The plate is epoxied to the spars. We have never seen one of these lorn loose in even the most violent crash. It’s also quite light. The servo installation is made easy by the plate setup shown in sketch (B). Here's how the sequence goes. Refer to the sketches as required. M A IN GEAR 1. Cut the servo location into the foam before sheeting the wing. See sketch (A) then cut a 1/2-inch diameter hole for the push rod. 2. The spars and plate are installed at the same time, See sketch (A) use epoxy. 3. After the sheeting is completed, cut away areas for gear and servo. 4. After wing is joined, make a 1/8 ply servo plate which is a push fit into the foam cutout. See sketch (B). 5. Next, make a cutout in the plate to fit your servo. See sketch (B). 6. Now screw the servo to the plate and push the servo down as far as necessary. 7. Using epoxy and a little filler (microballons), make a fillet all around the plate. 8. Remove the servo and brush epoxy lightly around the exposed foam. 9. Install main gear and retract servo. Use sheet metal screws. 10. Using threaded push rods, attach one to each gear and let the unthreaded end extend over the top of the servo. 11. Extend and retract the gear by hand and note the full stroke required to activate the gear and lock it solidly. 12. Using a piece of masking tape on 15. The push rods should require little as possible with a ‘Z’ bend on the end to the servo end of the pushrod, make a or no awkward bends using this tech slip into the servo arm. See sketch (D). pencil mark which shows where the end nique. 4. Now hook up the steering, using should be. It should move to either woven, 15-pound fishing line. The gear side of the servo output shaft by the NOSE GEAR should lock down easily by hand as the same amount. 1. The nose gear should be mounted steering lines go taut. See sketch (E). 13. Remove the pushrod and cut 1/8 to a perfectly flat plywood firewall using We have used this setup for the past inch longer than marked. Then, solder a 4/40 Allen bolts and blind nuts. five years on many birds with no failures Rocket City snap-in connector or use 2. With the wheel in place, actuate except for the steering lines catching on any comparable device such as the the push rod attached to the gear. It the wheel. A thin foam pad cured this. Goldberg or Dubro, but solder these, should lock easily in either position. I hope you try this setup if you have don’t use the set screw. 3. Now make a two-piece push rod stayed away from mechanical gear 14. Now bend the wires. See sketch using a sleeve to connect the two pieces. because you thought it was compli (C) for approximate bends. The shape of the wire will be as straight cated. · mentioning something that everyone seems to have overlooked . . .and that is a wonderful feeling called confidence. Now we all know that it doesn’t come easy, and it’s rarely present when worry or concern are close to running amuck. In case you didn't know it, one helluva lot of guys feel ill-at-ease with gas engines because they are an unknown to them, and because they’re very much intimidated by those huge props. These same flyers feel more relaxed and com fortable with their “ old” sixty or ninety because they’re familiar with it and trust it. This all adds up to a nice secure feeling of confidence that makes for safe and Continued on page 79 Bob Morse's quarter-scale F4B-2 is a real eyecatcher. MAY 1982 25 Bob Williams with two of his Shrikes at Torrey Pines. Wings are polyhedral and swept, with One of Bob's Shrikes performing out over the extremely thin airfoil. calm Pacific Ocean. together good designs. ★ ★ ★ It’s tough to talk about some things. How do you tell your sixteen-year-old son who just started driving that you got a speeding ticket for going 35 mph in a Rc SOARING 25 mph zone? And, why is your favorite by Dr. LARRY FOGEL. plane in shreds as a result of, you should pardon the expression, a crash? Most of use believe in causality. Every crash had a cause. First inclination is to • Jack Chambers and Bob Williams have Success of this design encouraged him blame the radio. Why not? It can't talk a lot in common. Both live in Southern to design the Shrike. Here the thin, back, and this relieves you of any res California and spend their waking hours polyhedral wings are swept back adding ponsibility. Maybe the receiver quit, or close to flying machines. Jack builds to the maneuverability of this high the battery pack just gave up the ghost. wind tunnel models, while Bob is a aspect ratio plane. I’ve watched it whizz Or, could it have been pilot error? technical representative for Cessna by while performing a dazzling display Was there a downwind stall prior to Aircraft. of maneuvers. And yet in light air, it landing? Did you see that other model in In their off-hours, they design R/C floats with the best of them. time? Did you fail to flex the wings and sailplanes. Jack is convinced that thin The pod and boom fuselage is con carefully inspect the fuselage for struc airfoils are the way to go when operating venient to build; the boom being a tural damange after the hard landing? in the low Reynolds Number regime. fiberglass or graphite arrow shaft. Bob Over the years I've had my share of Less drag, greater speed, and therefore makes the pod flow into the boom by crashes .. . and some were actually due improved flight performance. That's not carving and sanding surfboard foam to battery failure. But the most aggravat the whole story, but we’ll take that up in into the desired shape. Although you ing problems are caused by intermit- a coming issue. can flex the boom in your hands, there’s tency. Everything works fine . . . except Recently Bob designed the Manta, a no evidence of flutter at high speeds. once in awhile! Well, recently I’ve had lightweight, beautiful aerobatic craft. Clearly Bob has a talent for putting just had just such a grueling experience. Tangerine Soaring Champs 2-Meter winners. (I to r): Jim Smith 5th, Tangerine Scale winners (I to r): Dave Elias 2nd, Stan Pfost 1st, and Joe Ruth 2nd, Dave Elias 3rd. Kneeling II to r): Chris Ruth 4th, and Dan Langcaster 3rd. C.D. was Bud Moore. Ed Wright 1st. Phrophet design used by 2nd, 4th, and 5th. 26 MODEL BUILDER while forty-four signed up for the open class seven-minute precision/duration and ten-minute triathalon events. Stan Pfost took first place in scale with his Cirrus. Dave Elias placed second with a Kestrel-19, while Dave Langcaster took third place with a beautifully built Modified Franklin. Three of the top five two-meter slots were captured by pilots flying the Prophet. Stan Pfost and Jack Hamilton ranked first and second in the seven-minute event with their 132-inch span Legionairs, while Chris Ruth won first place in the open triathalon event with his two-meter Prophet. Two of the top five pilots in this event were flying the Bird of Time. Say, if you happen to be in Florida, don’t forget to visit the Everglades National Park. Here’s your chance to watch the real osprey, heron, egret, and pelican in flight and even fly your sailplane at the Flamingo Visitors’ Cen Bob Williams loaned the prototype the wings to make sure they will with ter (with permission of the Park Ranger). Manta to me for evaluation. I installed stand the load. Better to have it break in I did just that, challenging those already my radio and threw it off the cliff. It felt your hand than in flight. My faith in in flight to consider this new species. just great. I was just getting it trimmed causality has been renewed. I now look Don’t forget your camera. It’s easy to out when there was a hard down glitch, forward to flying the Manta through its get good pictures of the birds when or could that have been turbulence, a tip full flight regime. they’re not in flight. They stand perfectly stall or . . . Well, I quickly brought the ★ ★ ★ motionless. You don’t have to say, "Hold plane in for a safe landing and range Each year, the Tangerine Soaring it.” But capturing them in flight is far checked the radio. No problems,so I put Championship draws competitors to more difficult. You’d better be quick on the bird back into the air. After another Orlando, Florida. This year the high cost the trigger. few minutes of fine flying, the same of travel cut the number of out-of-state ★ ★ ★ glitch appeared again, but this time with entrants (although some came from as Some friends dropped in the other a vengence. I turned the plane toward far away as California). The weather was evening. After the usual chit-chat, we me, held the transmitter high overhead, made to order. . . three days of clear air retired to my workshop in the garage to shouted my frequency color . . . then with temperatures in the low 80’s and contemplate more serious matters. I watched the crash! five-knot winds. There were two-meter, pointed to the Windfree hanging from After the painful repair, I checked the open class, and scale events. Thirty-two receiver and servos by flying them in my pilots took part in the two-meter event. Con tinued on page 94 old reliable floater. It went to maximum range without a whimper. I then put the gear back in the Manta, and for extra security, separated the antenna from the servos. Everything looked great once again. At the flying site it range checked, so up into the air. It flies great. I love it. Then suddenly it’s erratic, then com pletely uncontrollable. I tried and tried, but to no avail. Another crash! Talk about being aggravated. Well, I stripped out the radio gear, but this time I had the receiver checked by the factory. It was returned with a note: “ We replaced a diode that might have been intermittent.’’ "Aha!” I thought. “ We’vegotitlicked now.” After this repair and reinstallation, I started the check-out again, but this Dan Langcaster with his Franklin primary which placed Third in Scale. All Tangerine photos time I was lucky. It wouldn’t range by Frank Collins. check, and the servos jittered madly. In attempting to turn it off, I jarred the battery pack, and suddenly we’re back 7% THICK. MAX. HIGH POINT 7.5% AT 33.3% CHORD NOTE: TOP CAMBER in business. It’s working O.K. again. MEAN CAMBER HIGH POINT 4.5% AT 40% CHORD IS STRAIGHT Some further probing finally revealed a (FLAT) FROM cracked wire between the cells and the "A " TO T.E. battery pack plug. In one position it was J.C. 18 (TYP) fine. But a slight jar was all that was needed to produce arcing and an open circuit. Evidentally some maneuvers stretched the wire. Others didn’t. Jack Chambers' sailplane airfoil section, as mentioned in text. Leading edge radius is about the An unusual failure mode? Maybe so, size of a standard round toothpick in diameter, and constant from root to tip, allowing for less but now I've learned to pull on the washout being required in tapered wings. Trailing edge is a constant 1/32-inch thick. wiring before each flight. It's like flexing MAY 1982 27 Would you believe this Fairchild FC-2 was entered in Sport Scale competition by George Clapp? It has Precision Scale exactness. time required to be in attendance for the competing modeler, the following schedule has been adopted. F/F Indoor scale will have a Monday turn-in at 10:00 a.m and fly from 4:00 till ... Outdoor will turn-in at 9:00 on Wednesday and fly on Thursday all day. In C/Land R/C Precision Scale (AMA), the models will be turned in on Thurs day at 10:00 a.m. and may be picked up Friday evening. The Sport Scale and Giant models will be judged on Friday beginning with preview times at 10:00 • Dear Diary: Friday, January 29, wasn’t news. The good news is that we are right a.m. The models will not be held in a the best day at school, but it ended. Had on time. The bad news was that there are cage area. They w ill be judged and a light supper w ith the family and no gates open.” About 45 minutes later returned. At turn-in time the model will headed for the airport. The Ozark flight we unloaded. Quick tripto Park-and-Fly be assigneda number and then numbers was scheduled for 7:40 to Dallas. At 9:05 to autom obile. Dig it out and head will be randomly drawn to determine we left Lambert. Flight was rough due to home. No problems until we get to the judging rotation. C/L and R/C will both storms nearby. Big thunderboomers. subdivision. No way! Park on friend’s be flown on Saturday and Sunday in Arrived Dallas 10:45. Free transportation Brake Service lot and walk mile home. nearby areas. In R/C, we will check to motel ended 9:30. Rented a Horizon Cathy and I get 20 inches of snow off transmitters at the time the model is and drove to motel. driveway and five feet drifted on part of turned in. They will not be electronically Saturday, January 30: Nice breakfast, the roof. Things settled down for even processed for frequency, but will be Geoff Styles from AMA Headquarters ing. More snow predicted Tuesday P.M. visually checked for frequency, flag, etc. rode with me to HIA (Hobby Industry) Tuesday, February 2: Bunch of jobs You will need your transmitter at model show and we spent all day talking about done around home. Get out for some turn-in time. AMA with a million visitors. Great crew medicine and groceries. No milk or The Sunday airshow will be the scale of local modelers helped Larry Bolich bread. Road crews have major streets event. By this I mean there will be no engage almost 600 kids in building AMA clear. No school. need to end at a specific time such asthe Cubs (Delta Darts) at booth. Wednesday, February 3: Snow began 2:00 p.m. in the past. We therefore have Sunday, lanuary 37: Real purpose of about 4:00 a.m. last night. Originally more freedom to complete our rounds. the trip begins. Nats planning session scheduled three inches. Noon news has It was evident to most of the officials begins at 9:00. Around noon someone just changed that from six to ten inches. last year that the scale event attracted finds that Detroit airport is closed. Ah No school. Thirty inches of snow? Wow! the lions share of the spectators (it Ha! I check and find St. Louis is also I guess I’ll go build awhile. See you in should have been evident 20 years ago! closed. Twelve inches of snow on the June . . . maybe! wen). Obviously, since they are sched ground; six foot drifts. So much for a The Nats planning session in Dallas uled on the weekend, this would occur. 6:30 flight today. Attend an HIA gala was most productive. This year all as However, those who saw the many, with Headquarters group. Supposed to pects of the Nats will be held at Lincoln, many thousands present on Saturday go out on a 10:30 flight tomorrow. Call Nebraska during the first week of August will attest to the fact that scale draws wife and find that there is much more on Some changes have been planned, large crowds. In addition, on Sunday, the ground at our home 30 miles south which include moving the R/C flight though the numbers were lower some of the airport. Cathy measures 18 inches lines back so more air space will be what, they outweighed the airshow in undrifted area. Ugh! available between the flight line and the numbers even though they were in the Monday, February 7: Take Micheline airport area. About one-third of a mile morning during church times. from Headquarters to DFW airport for will be available. The decision was then made to adver her flight. Manage to get an 8:30 Ozark Some very radical changes have been tise the scale events Sunday as the flight and land in St. Louis at 10:00. Great planned to F/F, R/C, and C/L Scale airshow, and allow us to more freely flight. Pilot says: “ Good news . .. Bad events. In an effort to cut down on the Continued on page 97 28 MODEL BUILDER Marilyn Hostetler displays the environmental license plate she Ron Gilman, Circus Hobbies, flew R/C helicopter for Lt. Col Enrique bought husband Ray for Christmas. "HELI PLT". Harary, Chief of Baja Calif. Highway Patrol (left) at Mexicali. [HOPPER [HATTE By RAY HOSTETLER PHOTOS BY THE AUTHOR • Thought I'd start out this month by NRCHA NATS 75, Greenville, Penn Masters: showing off one of my Christmas pres sylvania. 1. Ray Hostetler ents, even though this is the April issue. Approx. 50-60 entrants, 70-80 Helicop 2. Bill Youmans California has an “ Environmental ters. 3. Bob Pinto License Plate Program” , where you Expert: Expert: donate $25 and get to choose the letters 1. Ron Weinsch 1. Bob Pinto or numbers on your plates. My wife and 2. Dave Gray 2. John Simone I had talked about getting personalized 3. Don Chapman 3. Ralph Dalusio plates last year, then the subject fell by Novice: Sportsman: the wayside. Long about Christmas, 1. Ray Hostetler 1. Jim Piatt Marilyn started giving me hints as to 2. Wendell Hostetler 2. Bill Jensen what my Christmas present would be. In 3. Tom Schwyn 3. Al Decanio the end she practically had to tell me! (I Free Style: Faye Peoples Novice: claimed she gave me poor clues...) NRCHA NATS 76, Greenville. Penn 1. Bruce Buchanan Anyway, I’m proud of her choice; the sylvania. 2. Dan Sweazen seven letter abbreviation for Helicopter 62 entrants. 14 expert, 18 intermediate, 3. Rene Dikkes Pilot, HELI PLT. So if any of you in the 30 novice. 88 helicopters. AMA NATS 78, South Bend, Indiana. Southern California area see these plates, Expert: 22 contestants. watch o u t. . . I fly better than I drive.. . 1. Ernie Huber Expert: Last month I said I’d talk about heli 2. Don Chapman 1. Hubert Bitner copter contests. At least contests form 3. N/A (not available) 2. Mike Mas the base. The article will cover a little bit Intermediate: 3. Bob Pinto of R/C helicopter history, too. 1. Ray Hostetler Intermediate: Let me say beforehand that the opin 2. Bill Youmans 1. John Clark ions expressed are my own, and I apolo 3. Dwayne Stevens 2. Ralph Burch gize in advance if you disagree. Due to Novice: 3. George Croker my limited research material available. 1. Fran Wojcik Novice: I’ve listed the last several years of major 2. Dan Chapman 1. John Buchanan contests and the standings. To start with, 3. N/A 2. Steve Mintz here are most of the major contests from NRCHA NATS 77, Columbus, Ohio. 3. Peter Phillips 1974-1981: 38 contestants, 17 in Masters, 21 in AMA NATS 79, Lincoln, Nebraska. AMA NATS 74, Lake Charles, Louisi Sportsman. 8 contestants. ana. 1. Bill Youmans Expert: 15 entrants, 5 in expert, 10 in novice 2. Ralph Dalusio 1. Mike Mas Expert: 3. Ray Hostetler 2. Larry Jolly 1. Ernie Huber Sportsman: 3. Peyton Enlude 2. Mike Bosch 1. Doug Elder Intermediate: 3. Aubrey Radford 2. Wendell Hostetler 1. Craig Hall Novice: 3. N/A 2. Warren Wagner 1. Horace Hagan NRCHA NATS 78, Columbus, Ohio. 3. Bruce Buchanan 2. Ron Weinsch 61 contestants; 175 helicopters. 3. Grady Howard Overall Pilot: Bob Pinto Con tinued on page 67 MAY 1982 29 JR Apollo radio from Circus Hobbies. Lower pries system still carries Charlie Cannon's hand cradles Super-Micro airborne components many features of more expensive line. Three versions. from Cannon Electronics. the Electronics Corner By ELOY MAREZ • The 1982 International Modeler Show cated folks have been working to obtain for dealers to dispose of existing stocks, (IMS) was the best ever! Like any new for us for some years. Without boring for us to wear out presently owned sets, effort, it has suffered growing pains, but you with the bureaucratic details . . . if and to provide protection to our existing as of 1982, it can be said to have come of everything goes in the expected se frequencies, some of which will dis age, if the size of the constant stream of quence, as early as August of this year, appear ultimately. modelers and the number of displayers we may be authorized to fly on the first About the time you are reading this, can be used as a gauge. 17, and run our cars/boats on the first 11, the AMA should also be publishing a A stroll down any of the aisles was like of a total of over 70 frequencies we will more complete picture of the plan in a kid’s visit to a toy store the first of ultimately have. These are all in the 72 Model Aviation; there is no need to December . .. Which of the many and 75 MHz range; aircraft on the duplicate it here. We recommend that goodies shall I ask Santa for? I would former; non-flying vehicles on the you look for it, and study it carefully. It is love to have the time to try one of “ 32 latter. a well thought out plan, based on Parallel’s” subs or hydros; that Kawasaki There will be three parts to the phase- thorough study by knowledgeable R/C engine of C.B. Enterprises sure looks in program; the initial allocation, an manufacturers and flyers, and should great; and I must have one of DaCa’s other increase in the number of avail assure us and those who will follow us as new field boxes. But we’ll leave further able spots five years later, and the last interference-free flying as possible for description of these and the many other batch to become available in three more many years. interesting items to someone else, and years. The program is designed to permit We would like to caution you not to concentrate on the R/C and electronics manufacturers to develop equipment to panic, as has already happened. The side of the 1982 IMS. meet the new technical specifications, equipment you are now flying will not During this year’s IMS, the AMA become obsolete or unflyable the mo called a meeting of it’s Frequency ment the new law becomes effective. Committee, inviting also all R/C equip There is still time for individual or club ment manufacturers and importers, and comment, which we recommend you the model press. During this meeting, a do only after studying the more detailed new group, to be known as the R/C information from the AMA. However, Manufacturer’s Association, was bear in mind that in comparison to the formed. It’s purpose is to interface more many commercial interests who also closely with the AMA, thus ultimately require and are always looking for with us, the R/C flyers. In the long run, frequency space, we R/C’ers, even this should provide a pathway for us into banded together under the AMA, have the R/C industry as a whole, through very little clout. As individuals, we which we can make our opinions and probably have none, when addressing requirements known. I was impressed the FCC. Your valid common sense by the apparent interest of the R/C comments to the AMA will be consid equipment suppliers present as to our ered and acted upon in a manner bene welfare, present and future. It is cer ficial to all of us. tainly nice to know that we represent NOVAK ELECTRONICS NES-1A something other than a trip to the bank MIDGET SERVO to them. It is an overworked phrase.. .State-of- The most exciting news out of this the-Art... meaningasgoodaswecando meeting, and of prime importance to all with the present technology, but I don't of us, is the fact that 1982 should bring Ace R/C*s Datamaster is combination know how else to describe Novak Elec us the additional frequencies that AMA Digital Pulse Meter and Servo Driver .. . tronic’s new NES-1A servo. It comes in and a group of very talented and dedi in addition to other capabilities. the same size package as its already 30 MODEL BUILDER RAM's Battery Backer switches on auxiliary airborne power if Tower Hobbies Astro GX 202 two-channel system. One of several primary pack fails. One of many electronic items. house-brand radios available. famous Bantam Midget, fits the same Novak Electronics NES-1 servos are call it, it has received rapid acceptance mounts and all, but there the similarity compatible with most modern receivers by the R/C car drivers as well as by the ends. As all of us who know him p e r and systems, and can beobtainedalone, roostertail crowd who find it’s rather sonally can attest. Bob Novak did not just or as part of complete airborne or road unorthodox appearance provides a fall of the turnip wagon as a designer of systems in conjunction with the Novak more natural operating link than some R/C equipment. Off his motorcycle, NER 1-9 (six to nine channels) or NER-2 of the other systems in use. water skis, skateboard, and the curb, yes, (two channels) receivers. Included in The addition of the KPC2N provides a but not off the turnip wagon. Bob's the package are a mini switch harness, complete competition proven package, experience goes back for many years and your choice of battery sizes and and if it looks familiar, is should be, as it and is the basis for the design, mechan configurations. is being manufactured for Kraft Systems ics, and electronics of the NES-1A. Novak systems are available with your by Novak Electronics. In this case, it is The NES-1A features angled gears for choice of Kraft, RS, or Futaba con known as the KPS-33N Servo, with the superior strength and smoothness, nectors; servos are available with a same specs as listed previously for the compounded from a new more stable variety of other types of connectors, and Novak NES-1A. The receiver is desig material. A .150-inch thick output gear is adjusted pulse width and centering for nated as the KPR-2N, two channels, and utilized; the interlocking tongue-and- optim um operation with the system incorporates a double balanced IC groove case assures dirtproofing. A specified. mixer, decoder with flutter and noise signetics NE-544 1C with linear one shot My latest International flyer is Novak filtering, double tuned front end, and is amplifier is used, driving external PNP equipped, and has not missed a control available on all 27 and car/boat 72MHz transistors. The pot is conductive plastic; yet. I say International, because I recent frequencies. the motor is five-pole with silver com ly had it down in Mexicali for a fun-fly. I It is claimed to have a sensitivity of 1.0 mutator and gold alloy brushes. A 0.5 have written before about what tre to 2.0 microvolts, with a power con degree deadband is claimed, tested as mendous times those of us in the know sumption of 9.8 MAat 4.8 volts; 11 MAat high as 150degrees. It is operational on 6 have at contests down in Mexico, and 8.5 volts. It’s size is 2.45 x 1.08 x0.7 inches cells for 1/12 electric cars (one dropping this one was no exception. Some of us . . .wee indeed . . . and it weighs in at 1.0 diode is recommended), and optional even drink the water . . . of course it is ounce. ball bearing and “ O ” ring seals are disguised in one form or another, my Continued on page 81 available. favorite being Bacardi. If you can get to Its torque is reported to be 21 oz-in, Guadalajara for September 16 .. . I’m with a transit time of .27 seconds for 90 buying! (Look out! You better float a degrees, which makes it rather speedy, loan, Eloy. wen) to say the least. KRAFT Size and weight are attractive also, 1.5 Kraft Systems introduced it’s new X 0.7 X 1.2 inches, and .846 o f an ounce. KPC2N Carpak, being offered as a companion to the KP-3KW three-chan nel, wheel equipped, pistol grip trans mitter, known in some circles as the “ Kraft Staple-Gun". Whatever they may Kraft Systems' KPC2N Receiver/Servo com Small, smaller, and smallest receivers by Royal bination, for car/boat KP-3KW transmitter. The new, all but bullet-proof Kraft KPS-24 Electronics. Part of full line of kit and assem They're made by Novak. and KPS-24R (reverse). bled R/C electronics. MAY 1982 31 Dave Schadel's Hot River (Geist kit) with Geist samarium cobalt Steve Manganelli's BN Islander twin 020. About 36 ounces all up. motor, gear reduction, prop. Uses 14 cells. Incredible climb. Second in R/C Scale. Nice flier. £ELECTRIC POWER< By MITCH POLING • Two electric contests in one month! results here, then on to comments about six Sanyo sub-C cells. Amazing! Now if that would just hap the details. Jeff Rebholz flew a two-meter Olym pen all the time. Someday it will. Both The six finalists on the second day pian (Larry Jolly’s design, the one that were in Los Angeles, a perfect place and were Mike Charles, Jeff Rebholz, Mike won $100) with a Leisure racing wind time for a contest in winter. I live in Regan, Frank Heacox, Steve Neu, and motor on a 3:1 gear drive turning a Seattle, and I can’t resist going to sunny Frank Chastler. The final top three were worked-down Geist prop, drive by six California in January, the jump from Mike Charles (1st), Jeff Rebholz (2nd), Sanyo sub-C cells. Mike Regan used a winter to summer is always incredible, and Mike Regan (3rd). Mike had to work Leisure pattern wind motor turning an 8 and welcome. hard for his win, there were over forty X 4 Rev Up prop on six sub-C Sanyo cells. The first contest (January 9and 10) was entries! His time was over eight minutes These Leisure motors have to be seen to the Leisure Electronics Grand Champ on the 1-1/2 minute motor run, for first be believed, by the way. These are not ionship, with a thousand dollar first place, and third place was over seven the yellow case Leisure 05 that I re prize for electric sailplane duration. The minutes. Mike got the check for $1,000, viewed a few months ago, made by basic rules were a stock 05 motor, six Jeff got a four-channel Futaba radio,and Igarasbi, but an entirely new motor, sub-C cells or eight .600 Ah cells. The Mike Regan got a Leisure digital charger. made by Sagami. They have a “ Rolls flights were man-on-man, 1-1/2 minute Congratulations! Besides these prizes, Royce” look to them, with a black power run, and the last man down won Gary Ittner got $100 for the best direct machined case and recessed brushes the round. The top 24 pilots of the first drive design, and Toss Thomas got $100 that use spring loading instead of the day would fly the second day to narrow for his Playboy, as the best old timer leaf design of the previous motor. This the field to six, then these would fly all at design. allows high current handling with no sag once to see who came out in the top Now for the details on the designs. in motor performance, so the motor can three. The weather was good during the Mike Charles had a two-meter original handle overloading much better. This contest, and the mass launches (up to six design using a Leisure racing wind can make quite a difference in a situa at a time) worked out well. I’ll give the motor turning an 8 x 4 Rev Up prop on tion like the contest, because larger F4U Corsair control line by Lon Tar Diss. Astro 020. Folding wings, Scott Manning (left) with his “ Electric Rat" pattern ship. Leisure 05. realistic weathering. From a mere Guillow kit. First Place. Fast, crisp maneuvers, lots of power. Placed fifth. 32 MODEL BUILDER Bob Boucher's Porterfield with Astro 15 on 3:1 reduction drive. Tony and Addie Naccarato's Astro 40 samarium cobalt pattern ship. About five lbs. total. Astro Flight kit. Placed third in R/C Scale. Smooth, slow, like Ukie stunt. Built in three days. Third place. props can be used. I have the pattern streamlined. It is 560 square inches, and winners (top three) in each category, wind motor, and hope to report on it 41 ounces all up. Those who have seen then on to the details. In R/C sailplane shortly. I hear its performance is even the Ceist samarium cobalt units perform (in order), were Larry Jolly (Olympian, better than the yellow case 05, in which say that its performance was even better Geist samarium cobalt), Dave Shadel case its performance is very good in than the Geist units! (Hot River, Geist samarium cobalt), and deed. This motor did cause some con Other notes . . . Larry Jolly made the Mike Charles (original. Leisure 05). In sternation for the out-of-town compet 3:1 gear reduction units for his plane old timer (in order), were Ross Thomas itors, who didn’t know that there was a and Jeff Rebholz's plane. These have the (Playboy, 3:01, 05), Larry Jolly (Comet new motor out, and showed up with the smallest housing I have ever seen for a Interceptor 3:1, 05 .. . this may be a kit yellow case 05! gear reduction unit. It is machined later), and Bob Stiff (Playboy 3:1,05). In The plane that caused the most ex aluminum, beautiful workmanship, and R/C scale, Bob Sliff was first with his citement, though, was not one of the it adds almost nothing to the frontal area Rearwin Speedster (Astro 15), Steve winners. It made it to the final rounds, of the motor. These are the best looking Manganelli second with his Britten then lost out on landing points. This was gear units I have seen for the 05. I don’t Norman Islander (twi Astro 020), and Ken Banks’ original two-meter ship know if Larry plans to make any for the Bob Boucher third with his Porterfield using the Leisure 05 racing wind motor general flyer, though. The other item is (an Astro kit, Astro 15). In pattern, Steve and a 5:1 Carrera gear unit to turn a 325 that Frank Heacox, one of the top six, is Neu was first with his 05 plyon plane, mm Carrera folding prop. It used eight organizing a national association for Steve Manganelli second with his 05 600 mah Sanyo cells, and its clim b electric fliers. I’ll give out more news on pylon plane, and Tony Naccarato third performance was incredible. The re this as it comes in. I had a chance to talk with his 40 (Astro 40, samarium cobalt) ports are that Ken would launch it at a to Frank later, and I think he's the right original design. In control line, Lon Tar 45° angle, and it would just keep going man for the job. He knows his stuff, and Diss was first with his F4U Corsair (Astro on up! In fact, the 1-1/2 minute run was if anyone can organize us mavericks 020), Ron Duly second with his Zero too long for it . . . it was so high in that (you gotta be, to be flying electrics!), he (Astro 020) and Addie Naccarato third time that it was hard to see and control. can. with her Airabonita (Astro 020). In Jr. In five seconds it was well above high- The next contest, the following week control line, Eddie Paz was first with a start altitude! I have no doubts at all that end, was the Astro Flight championships P47 Thunderbolt (Aero 020), and John this will be the most copied design for at Mile Square, on January 17. This one is Godel second with his P47 Thunderbolt the next contest (it will be an annual a favorite of mine, as it features just (Astro 020). In free flight scale. Bill event). The plane is very handsome, by about every possibility in electric flight. Stroman was first with his DH 10 (Astro the way, with a neat cowling over the This year there was everything from 020), Ferrell Papic second with his 1907 motor and gear unit so that it is quite control line to R/C pattern. I’ll list the type VII Bleroit (Astro 020) and Bill Ken Banks w ith two-meter original. Leisure 05 racing, eight .60 Ah Winner of Leisure Champs (and $1000) Mike Charles. Two-meter Sanyos, Carrera 5:1 reduction. Climbs at 45°! original. Leisure 05 racing, 8x4, direct drive, six 1.2 Ah Sanyos. MAY 1982 33 time, and it took all day to get through the flying. Most of the flying was done by 2:30, and the dramatic effect of the mass launches is a real bonus. It is really neat to see four to five old timers or sailplanes launched at once, there is a tremendous crowd response and inter est. Beside the thrill of near misses(!!), you can compare and see the differ ences in the flight performances, and usually you start rooting for one of the competitors! Actually, the crowding in the air is not any more than at the flying field I go to, and there were no colli sions. I like it, I hope this will become a tradition. In the sailplanes, the overwhelming impression was that of the Geist pow ered sailplanes. These perform! It is amazing to see the climbout, especially in mass launches, where the Geist planes would be at double the altitude of any Best Old T im e ra t Leisure Champs, reduced other plans at any time. In fact, this La rry J o lly uses ow n 3:1 gear re duction in ow n- Playboy by Ross Thomas. Leisure 05, 3:1 re created problems for the Geist fliers, design Olympiad (Hmm, sounds familiar). duction, to be Leisure kit. Gear drive very compact and smooth. because the 1-1/2 minute motor run was Warner third with his Caudron (Astro really too long. At 1-1/2 minutes, the climb performance. I was going to fly my 020). In )r. Free flight, Linda Cope was lanes were nearly out of sight, and very Berkeley Brigadier, but I really pulled a first (and only!) with her “ Garfield ard to pilot with so little visual refer dumb one. I had the Brigadier in the Special.” In open free flight Jim Mc- ence. This is for six-pound, eight-foot back of the car, and it shifted around Dermoth was first with his Strato Streak sailplanes! This may have been, unfor quite a lot during the two hour drive to (Astro 020), and Joe Tschirgi second with tunately, the cause of one crash. . . Hans Mile Square. The receiver switch got his original design (Astro 020). In free Weiss’s beautiful Hot River sailplane knocked "on” , and then the radio flight old timer, Jim McDermoth was with the Geist unit. It was nearly out of turned on the motor! All this happened first with his Buzzard Bombshell (Astro sight vertically when it went into a series without my knowledge, and when I 020), Jim McMahon second with his of hard “ roller coaster” dips and dives. stepped up to the flight line, I found I Powerhouse (Astro 020), and Bill Stro- This broke a wing, and then the vertical had a dead receiver battery, dead motor man third with his Carl Goldberg Val dive from over lOOOfeet. Ugh! However, pack, and a burned out motor. Scratch kyrie (Astro 020). Whew! What a list! the Geist units are well made, even in a one contest for me! The lesson here is to Like I said, something for everybody at crash from this height, the damage unplug your motor and radio batteries this contest. looked repairable. The Hot River, by the when you are going to drive, otherwise, Now for the details. In size, this was way, is a fiberglass fuselage kit from sooner or later, the motor will get the biggest Astro Champs yet, with Geist, and is available from Wilshire turned on. This is the first time for me in nearly seventy entries in all the cate Model Center, 3006 Wilshire Blvd., Santa nine years of electric flying, but once is gories combined. It was also the most Monica, Calif. 90403. enough! Oh well, so much for learning sophisticated, with several samarium The oldtimers were well represented, from hard experience. cobalt motor entries. The contest had to including the Playboy (a Leisure Elec In RC scale, Bob Boucher's Porterfield start late, at noon, due to fog, but once tronics kit), Miss Philadelphia, Berkeley (Astro Flight kit) put in some outstand the fog lifted, the weather was superb. Brigadier, Trenton Terror, and the ing flights with the Astro 15 and 3:1 belt The contest was run very well indeed, Comet Interceptor. These were mostly drive. This combination is really impres with mass launches the rule. This is new. 2/3 size, powered by 05 motors with 3:1 sive in the air, lots of power, it “ looks Previous contests ran one contestant at a belt reduction units, which gives good Con tinued on page 95 Beautiful decoration job on this Best Direct Drive winner by Gary Ittner. Leisure 05. At Inside details of Ken Banks' ship. Eight cells right behind motor, motor above gear drive. A ll is Leisure Electric Championships. covered by neat one-piece cowling/canopy. 34 MODEL BUILDER 6. Photo of our intrepid early Nats photo grapher Bruce Lester, with R/C "Sparrow" primary trainer glider. June 6: Jot Ott Day; Two events, those under 20" w/s and those over 20". June 27: All biplane contest: Peanut Scale, AMA Rubber Scale and 36" w/s duration. July 25: Pre-1939 Wakefield Replica, 30" 7. Gordon Codding flies Civy Boy on gas or electric, using quick-change power units. More max. wingspan. in te xt. August 15: SAM Pacific Ace Challenge. Rubber Scale, and Peanut Scale. That ought to stir up any red blooded September 5: National Air Races (FAC October 4: Peanut Scale, Multi-Engine modeler who likes rubber models. Rules), Peanut Scale, and 36" Cabin. Rubber Scale 36 max. w/s,and Embryo According to Tom Brennan, individual September 26: C02 Duration, AMA Events. flyers will be issued for each special event shortly. To get more information, call Tom Brennan at (415) 479-7088 or Hal Makinson at (415) 453-4278. Don’t miss the fun! ENGINE OF THE M O NTH You don’t really qualify as an old timer if the name Paul W. Lindberg fails to ring a bell. For the benefit of the uninitiated, Paul Lindberg first came to national attention when he became model editor of Popular Aviation, then the biggest and best aviation magazine on the news stand. Joe Ott first headed up a model section in Popular Aviation beginning in 1929. About 1933, due to the press of business. Jack Knoble took his place for about six months. Of course, the “ drag” of having to put out a completed model with drawings every month proved to be too much for even the most ardent 10. Jack Jella built this excellent flying Playboy Senior. Flies better than it looks, on modeler. Cyclone power. 8. Hot performing Sailplane by Kraft's Jack Albrecht. Seen at 9. Tom Hammond at Taft with a great flying Megow Korda SAM 49 meet, Taft. Wakefield. Photo by Johnson. 36 MODEL BUILDER OLD TliTtt HAKS StKVJCE • 12. Ben Buckle doing his thing at the English O/T contests. Now 11. Brown D powered Quaker Flash by Clarence Bull, Oregon, producing five or six kits. complete with original scalloped paint effect. However, Lindberg was more than features and appearance of the original chined from 2024 aluminum. Of course, qualified to accomplish this. A series of engine have been maintained. good old mehanite was used for the half-inch scale rubber models were his Probably the trickiest idea John came piston, to ensure long life. first selections to be presented . . . an up with was to have the crankcases made Technically speaking, the Morrill excellent set of plans that have been pla from extruded aluminum rather than Hornet features a bore of .625 in. and giarized by more than one kit manufac make up castings. Although more ma stroke of .640 in., giving a displacement turer. chining time was involved, the extruded of .196 cu.in. Weight of base engine is 5.4 Along about 1936, Lindberg became crankcase would be stronger than a cast ounces. Performance-wise, the motor absorbed in the gas engine, and put out ing and the cross section more con has turned 10,000 rpm using a 9-4 Zinger his first gassie, the Rearwin Speedster. sistent. propeller. Although badly out of scale, the model John readily admits to changing the Morrill wishes to point out, due to (and later kit) proved to be so tremen sideport area, timing, and compression numerous changes to Lindbergs Hornet, dously popular that Lindberg embarked ratio. After many hours of comparing the Simplex Hornet cannot be regarded on a program of one gas model design notes with many good motor men, John as a true Lindberg Hornet, as he does not per month. The real kicker was that most finally came out with an engine that intend to do tbis. He freely credits were very good flying scale subjects! retained all the classic looks and han Lindberg for the inspiration for the Eventually Lindberg became involved dling of the old motors, but yet would present engine. in the manufacture of kits, sometimes run comparably with the contemporary THIRTY YEARS AGO, I WAS... farming out his designs to nationally engines of its day. Just received a letter from Robert known firms such as Megow, National, For those who are interested in how Wynne, 4124 - 96th Ave., S.E., Mercer etc. Lindberg himself got involved with the engine is fabricated, the crankcase, Island, Washington 98040, via the Model solid scale models and I.D. kits for the cylinder head, back plate, timer frame, Builder office. In his letter, Bob sez he national defense effort. and tank cover are machined from 6061 remembers the California State Fair This, of course, led to the demise of aluminum. The crankshaft and crankpin contest in 1937 quite fondly: the model section in Popular Aviation. are precision ground, case hardened "/ don't remmber Rod Doyle too well, After all, who could follow an act like 1117 steel. Connecting rod was ma but know he was a friend of loe Culver, that? One of the best articles Lindberg did was to feature construction of a model engine known as the Lindberg “ Hornet A” . This two-part article ap peared in the January and February 1940 issues of Popular Aviation. Many years later, John Morrill was looking for a model engine design to produce. After his success with modify ing the Garami Simplex engine to the point where it would run quite respect ably, John selected the Hornet A as his next project. In going over the drawings, Morrill immediately found the bore and stroke gave a .23 cu.in. displacement, making it a Class B engine. It was no great problem to reduce the bore, as John discovered the motor as manufactured directly from the drawings did not perform any where near to the output of the con temporary engines such as Ohlsson, Bantam, etc. A lot of hard work and experimenta tion went into the “ re-design" of the Hornet motor. As John says, about the only thing that is exactly the same as the original engine is the name. However, all due credit to Morrill, as all of the MAY 1982 37 13. Jim Palmer, N.S.W., Australia, displays parts to an original model built back in 1938! 14. New Zealander W.B. Mackley, still active after all these years. Holding electric powered area drove up to Sacramento and back rather minor. A friend of mine, Howard original design. (note: This was the gang comprised of Roberts, along with Pete Bowers, had who had won some important national Louie Shock. Henry Stigelmier, and Irv left early that morning for Sacramento (AMLA) contests a few years before. Ohlsson). That was no small feat in those only to find they had left some vital parts They both belonged to the same club in days over the old Ridge Route. There home. A hurry up call from the boon- Oakland. were only two lane highways then. But, docks got out my trusty Fleet Biplane to " The 7937 State Contest was won by hallelujah! Gasoline was only 77 to 75c deliver the badly needed part. Everyone Bud (as he was called then) Ohlsson. per gallon in those days. was quite blase about the trip I made. In Several modelers from the Los Angeles "M y own part in the contest was Continued on page 87 STRUCK CONTEST WINNER OLD TIMER Model of the Month Designed by: Henry Struck Drawn by: Al Patterson Text by: Bill Northrop STRUCK CONTEST WINNER this one ... it had much the same ground. The text indicates that models The name pretty much dates it. “ Con structural design, but without the 1/4- of this design had been winning contests test Winner,” "Texaco Contest Winner,” inch sheet around the nose. There also since 1936 (which backs up my belief "Eastern States Champ.” It seems that in must have been full-size plans, because I about there being a similar one pub the earlier years, the modelers were wasn't too good at enlarging plans in the lished earlier). The diamond fuselage more concerned with designing a reli mid-'30s. Could it have been published (square cross-section throughout, able aircraft that performed well, rather in Model Aircraft Builderl Anybody turned 45 degrees to put a corner than conjuring up a name that implied have a clue? Let me know, if you have longeron on each side and at the top and what it should do. the answer. bottom) is extremely rugged, with the This model brings up a puzzling This Henry Struck Design (is he not the 1/4-inch sheeted nose, and cap-stripped memory to me. The first scratch-built best model designer of all time?) was longerons. competition model I ever managed to published in the October 1938 issue of The wing is typical Struck construction, complete and fly successfully was a Air Trails, during a time when many of with the top surface sheeted more than Henry Struck diamond fuselage design its plans were published reversed, that is one-third of the way back from the which must have been a predecessor to white lines and copy on a black back Continued on page 86 38 MODEL BUILDER MAY 1982 MAY ______f - :'3Z'jýf: n/r ______I ______y y ULSZ PASAALBESE AE 100 PAGE AVAILABLE-SEE PLANS SIZE FULL 39 Terje Haugen, set IMPBA .65 hydro record Wardcraft Offshore 33's belonging to the author (background) and David Austin. David's boat with his Crapshooter 60 Sprint outrigger powered by O.P.S. .21 Marine. hydroplane. S tock OPS 65. See te x t. R/C POW ER By JERRY DUNLAP BOATS The Ward Marine enjoyable pursuit. To prove it, I fired up version for the .21 engines, and in a 44 Corporation Offshore 33 my boat, threw it in the water, and inch version for .65 to .90 engines. It is As I begin this article, I’m trying to handed him the transmitter. Well, Frank planned that a 38 inch hull, along with a think of the last time I did a review on a drove that boat around fora few minutes 31 incher will be available by late spring. Ward Marine Corporation, also known and stuck around the rest of the day to Frank had hoped to have the two newer as Wardcraft, designed boat. I've known help. To say that Frank has gotten lengths available last year. U nfortu Frank Ward since 1968, and have run involved in model boating since that first nately, things just didn’t work out in many of his designs during the years. experience would certainly bean under such a way to allow that to happen. You know, the last boat I reviewed that statement. Capitalizing on his experi Information regarding prices and ship was designed by Frank was his DragN’ Fli ences as a racer of full size outboard ping can be obtained by writing Ward 60 hydroplane, kitted by Dumas Prod hydroplanes, Frank quickly established Marine Corporation, P.O. Box 2579, ucts. That was back in 1969,fora pioneer himself in the model hydroplane arena. Lynnwood, WA 98036. In the evenings, model boating publication called In the mid-70’s, Frank’s design interests Frank can be reached by calling (206) "M odel Boating World News." That turned to deep vee, and this has been 775-3969. particular model magazine has been the focus of his efforts in recent years. My first experience with the Ward gone for a long time. However, you can But he has not entirely forsaken hydro craft Offshore 33 was a couple of years still find the DragN’ Fli hydroplane kits in planes. He developed a twin-.65 out back when the hull was being produced many hobby shops. rigger hydro a couple of years back and by another company. Ward Marine has Actually, I’m somewhat responsible it has been officially clocked at over 80 since reacquired the molds and is the for Frank Ward being in the hobby of mph. source of this hull. The boat was set up model boating. It was back in the early I’ve been "messin around” with with the K&B .21 O utboard, and it spring of 1968 that I first met Frank. It was Frank's 33 inch hull for the last couple of worked very well with that power source. at a contest at Seattle's Green Lake, years in various power configurations, as This combination proved to be a winner where he walked up to me and men well as some hull modifications. At the for me, also. During 1980, the boat estab tioned he thought this would be a fun time this article was written, Wardcraft lished both straight-away speed and oval activity to join. I assured him it was an Offshores were available in the 33 inch racing records. Just to top things off, the Offshore 33 hull with radio compartment built between the engine Wardcraft Offshore 33 unjoined, with rear deck still not cut away. stringers. 40 MODEL BUILDER Deck and hull taped together w itfi masking tape, in preparation for Ready to join deck and hull. Glass cloth strip has been resined to joining w ith glass cloth strip and resin. deck first. Radio compartment and linkages finished. boat won the A Outboard Monoplane Class at the 1980 North American Model Boat Association Nationals. In discussions with Frank Ward prior to the writing of this review, we talked about what would be the best version of the boat to tell about in the article. It was decided that the emphasis would be towards the outboard version, since this is the easiest way to set up the boat. Besides the ease of setup afforded by the outboard, it is also a less expensive method of propelling a boat. Even though the .21 outboard is about $30 more than the inboard engine, there is no need of a hardware package. A good the oval. At this time, the only area techniques in glassing the deck and hull hardware package for an inboard will offering .21 outboard deep vee as a pieces together and I’ll describe both. cost around $70. separate class is Southern California. A The first method is shown in the However, it must be pointed out that person needs to take these points into photos accompanying this article. Using the outboard powered boat generally consideration when selecting the type a two-inch wide strip of glass cloth (four- will not be as fast as the inboard pow of engine to be used. For a new model inch width is available in most hardware ered version of the same hull. Having boater not particularly interested in stores carrying fiberglass products), glass run the Wardcraft Offshore 33 as both an competition, an outboard powered vee half of the strip to the inside edge of the inboard and an outboard, I can supply hull would be a combination worth deck. The strip of glass cloth runs from some specific numbers for comparing serious consideration. the transom to the deck. Allow the resin the two forms of propulsion. When I set JOINING THE HULL to set and then join the deck to the hull the outboard record, the best time I ever It may well be that by the time this with the remaining part of the glass cloth had for straightaway speed was just over article is printed, the Offshore 33 will on the inside of the hull. It might be 35 mph and my best time for the .9 mile come with the hull joined. Since Frank necessary to trim some of the material in oval was 2:13 for five laps. With the Ward wasn’t completely sure this would the bow to allow the deck and hull to fit inboard version, I’ve hit 39.8 mph for be the case, some time will be spent on together tightly in that area. Masking straightaway and have turned a 1:48 for this procedure. I've used two different Continued on page 76 Ready to run. with fuel tank mounted atop radio box. Plastic bubble The author's modified .21 K&B Outboard on transom of Offshore material stuffed in hull for floatation. 33. Prop is J.G. G-25. MAY 1982 41 The new Delta Eagle, its entry in the 1/8-scale suspension car market. Dirty Racing Team’s Associated RC 300, when it was still shiney Has a number of features that should make it effective. and new. K&B for power; McCoy pipe for more power. R/C AUTO NEWS * By DAN RUTHERFORD P HPHOTOS n r n t r v BY i i iAUTHOR t u n n • Have you tried last month’s Hot Tip orginary drinking water to get the full tray and a few bits of nylon in the back, yet? Yeah, I’ll bet you have. And it works, benefit of this method, wen) just to get a picture of the new car out to doesn’t it? THE DELTA EAGLE the press. Turns out that the picture For any first-tim e readers, in last The Eagle is Delta's new 1/8 scale really is of the Eagle, at the time of the month’s column I detailed how to break independent suspension car, and it has shutter-snapping it was the only one in in electric motors, or at least the type been 12 years in the designing stage. existence, however. that we run in 1/12 scale cars, by running Well, no, not really, but of late. Bill Even though it doesn’t show up too them underwater. If you missed it, you Campbell has been keeping me pretty well, the Eagle neatly eliminates the best find yourself an issue of the April well filled-in on how the new car is need for the jack-shaft/chain-drive lash- Model Builder, ’cause that tip is worth coming along, and last call mentioned up seen on the PB car. I hear that this some free horsepower. that this a project that he has wanted to arrangement has been reliable enough, I know that I have had a great time do for the last 12 years, that of designing but it is still just one more thing to break, telling people about it, and of course and manufacturing a full-on suspension has to cost a little bit of power, and adds they rarely believe me; until they try it, car. Actual design work has taken place to the weight of the car. Delta has stolen anyway. One of the strangest responses in the last year or so, what with pressure from the bag of tricks of slot car racers, came indirectly from World Champ Art from PB (England) and SC (Italy) and mounting the motor anglewinder-style, Carbonnell, who claims to have raced their proven suspension cars. using just a pinion gear driving a main “ slot boats” years ago. I’ve never heard On first look, the Eagle is easily recog gear to make the transfer of power. The of such a thing as slot boats, either. But nized as a Delta. In fact, I accused them main gears proved to be a problem, as according to the story, they did exist and of dummying up a standard Super) with initially they just used modified gears picked up the electric power from over a few front end parts, modified radio from the Super ). Tooling up for a new head wires, kinda like a trolley or electric bus. Art says that every once in awhile a boat would take a dive into the water, getting everything wet inside. On the next run, the boat would be a lot faster and until he heard about running electric motors underwater to break them in, Art never fully understood what was actually happening. Don McKay, over at JoMac, was the one to tell me about this tip, as you should remember, and the latest from him is that somebody tried using atricko chemical solution instead of water and the commutator wore out while the brushes didn’t wear at all! Plain old water works and is probably a lot safer than a home-brew mix of some kind. (In a recent phone conversation, Dan also confirmed that distilled water doesn't work too well, either. It seems that the motor needs the normal impurities of 42 MODEL BUILDER gear with a really trick set to the teeth solved that problem. I can’t tell much from the picture about rear suspension bits 'n pieces, but do know that the rear ride height is adjustable, as is the camber of the rear tires. Bill says you get the ride height where you want it and then adjust the camber so the rear tires are flat to the ground and wearing evenly. In the front end, everything is mounted real low, standard Delta practice, with the shocks in an extreme lay-down position. I guess the shocks gave them more trouble than the rest of the car. Bill did a lot of research on shocks in general, actually buying and dismembering Bilsteins and Konis to get ideas on valving and soon. I have yet to see one of the shocks, but the Hot tip for indoor oval racing; Leisure Super Sport chassis, six-cell power, and old JoMac hard- word is that they will be much more than plastic Challenger body. Rail-rider front bumper and tough body make it durable. just a simple piston pushin’ its way through oil. were shipped over to Associated for 1/ 8. Actually, what they have ended up final detailing and tooling work, but As the usual story goes, 1/12 is so with is a coil-over shock, and coil-overs were raced at the ’81 ROAR Nationals much better for the average guy (and I are all the rage in big car racing. Pre-load where Rick Davis used one to win the count myself in with the average guys), on the coil will be adjustable with a biggie, Can-Am Open. Last I heard, the because the cars stay relatively clean, threaded collar, although what actually car was scheduled to be released in late there is no motor to worry about flaming happens is that ride height, rather than February, so might be rumbling around out or to adjust, the cars are less expen pre-load, is adjustable. the tracks as you read this. sive to begin with, radios seem to last Suspension travel limiters are built-in As the suspension cars intrigue me to longer in electrics, 1/8 cars are too to the car, as well as anti-roll bars that are no end, I would like to have had more powerful to be easily driven, and all of adjustable. In between the sproingy information or picturestospreadaround that rot. I say that it simply isn’t so . . . stuff, there is a new, molded tank, side about the Associated car, but there isn’t well, at least not to the degree that you mounting of the steering servo, and a an awful lot known about it right now. I have probably been told. rigidly mounted radio tray that contrib think it will probably have the engine First off, I will agree that 1/12 cars are utes to a stiff chassis assembly, required mounted in the back center of the car, fun, no problem there at all. But the 1/8 for a suspension car. Out back, the with the clutch-mounted gear driving a cars are also a terrific kick in the butt and bullet-proof ball-type differential is jack-shaft gear, the power coming out do a number of things so much better used. On my own Super J, this type of the other side via a sprocket, to a chain than a 1/12 car that there is no compari diff has hours and hours of racing on it and back to the rear axle. A diff is no son. without any problem whatsoever. I am doubt a part of the package, butwhether Let me back up for a minute and relate thinking about replacing the little thrust it is ball or gear-type I’m not sure. Keep some personal experiences. A season or washers, as the diff now feels a little bit hearing all kinds of things about the sus- so back, the DRT, which is my wife, the notchy when turned by hand,even pension, springing by "O ” rings, two kids and myself, raced both 1/12and though it still works as good as new. snubbed by shocks. 1/8 at almost all of that season's races. Release date? Last I heard they were WHAT TO RACE . . . Our club is small enough and well- hoping for late March/early April, so I guess I have never mentioned it organized enough that for that season, they might be out by the time you read before, but you should probably know we raced 1/8 in the morning and 1/12 in this. that I. and the rest of the Dirty Racing the afternoon. I found that the racing in AND FROM ASSOCIATED ... Team, much prefer to race the 1/8 cars, 1/8 would go off pretty well, all of us Naturally enough, Associated has given a choice between 1/12 and 1/8. I would complete very nearly every heat been working on its own version of a know that sounds strange to some of and main event, and at that time we suspension car in 1/8 scale. The basic you, especially those who have raced were racing a mixed-bag, two Delta design work was done in the U.K. by only 1/12 scale and heard some of the Super J’s, one old-style MRPcar,andan Team Associated-England. Several cars really gruesome tales about racing in Con tinued on page 66 Rear view of JoMac Lightning 2000. showing adjustable ride height MRP's Prophet Can-Am body, still one of the better 1/12 scale feature and strong motor pod arrangement. bodies available. MAY 1982 43 One of the first Lockheed Vegas taking off from dirt strip in Burbank. Empire China Company and Verdugo Hills in background. Note uncowled engine and absence of wheel covers, also clod of dirt on tail wheel. LOCKHEED'S woodwonders By WALT MUSCIAIMO . . . Tieing in with last month's construction article for the Lockheed Vega, Walt now gives us an interesting profile on the “ Wooden Wonder" series of history making Lockheeds. • When, in early 1927, Allen Loughead, Lockheed, derived from Loughead, and which gave birth to the expression: “ It )ohn K. Northrop, and other talented during the next seven years designed takes a Lockheed to beat a Lockheed” . aircraft designers left Douglas to form and produced a series of outstanding Lockheeds inspired competitive aircraft their own company, little did the avia aircraft which served as airliners, execu designing trends but were never seri tion world realize the impact that this tive and business planes, racers, and ously challenged by any other aircraft in group was to make in aviation history. military transports. The designs were their class. They reigned supreme and The company decided on the name constantly breaking world records, became America’s First Family of Aircraft during Aviation’s Golden Age. The Lockheed Aircraft Company was founded in Burbank, California, which at that time, was a little obscure town in the Verdugo Hills. The firm shared an old ranch building with the Mission Glass Works, and across the valley could be seen the cone-shaped brick smoke stacks of the Empire China Company. An old ranch house served as Lockheed’s office and engineering department, while an unpaved dirt flying strip was the only runway. The very first plane created by Lock heed made its debut on the Fourth of July, 1927, when it flew from Los Angeles to Oakland, California, setting a speed record for flights between the cities! This was a high-wing cabin monoplane of breath-taking beauty and simplicity and was named Vega, for the brightest star in the heavens. The five-passenger craft 44 MODEL BUILDER Capt. Frank Hawks flew his Lockheed Air Express "Texaco 5" for the Texas Company. Notice exposed oil cooler above cowling. The Air Express was Lockheed's third design. Lockheed Vega on March 15, 1935. The Lockheed’s second design was a little- and tail surfaces. Designed in 1929 as a pilot wore a special pressurized space known low-wing single seater which mail/cargo or passenger carrier, the new suit and helmet as he flew 2,035 miles started as a personal experiment and was Lockheed was soon breaking more from Los Angeles to Cleveland, via the designed by Lockheed’s chief engineer, records with famous aviation person substratosphere, in 8 hrs. 4 min. Speed lack Northrop. It had been ordered by alities at the controls. Capt. Frank exceeded 340 mph during this flight. Sir Hubert W ilkins in late 1927 and Hawks, Sir Hubert Wilkins, and Col. Earlier he had set an unofficial altitude named the Explorer. The Wilkins group Roscoe Turner were among those who record of 55,000 ft. This Vega was fitted suddenly ran into financial troubles, flew the Air Express to fame. with a drop-off landing gear and large which stopped all work on the design. Flying his Gilmore Lion Air Express, wing fillets for the high altitude flights. Revived in 1929, three Explorers were Turner streaked across the continent Landing was accomplished on a skid on built for Harold Bromley’s unsuccessful from New York to Glendale, California the plane’s belly. Post’s Vega is on trans-Pacific flight, and the fourth was in 18 hours, 42 minutes,and 54 seconds, display in the National Air and Space flown by Roy Ammel to a non-stop on May 27,1930, and established a new Museum, Smithsonian Institution, record from New York to Panama in 24.5 east-to-west record. Washington. D.C. hours on Nov. 9, 1930. A seaplane Two months later, on July 16, Turner version of the Explorer had been con set a non-stop record from Vancouver, sidered but was abandoned, and no B.C. to Agua Caliente, Mexico, in 9 further work was done on the design. hours, 14 minutes, and 30 seconds, in his The third Lockheed design was the Air Air Express. Express, which not only resembled the Eight Air Express airframes were built; Vega, but used the same construction one of which was converted into a Vega. techniques. The wing was mounted on All were fitted with the P & W “ Wasp” cabane struts, parasol fashion, above the except for Turner’s, which used the P & fuselage, while the pilot’s cockpit was an W "Hornet” for his speed runs. The Air open affair located between the wing Express was the last of the high-wing Col. Roscoe Turner, his Lockheed A ir Express, and the Bendix, Harmon, and Thompson tro Black and gold Lockheed Air Express used by Col. Roscoe Turner. Remember his famous lion phies. The pair set many records. cub mascot? 46 MODEL BUILDER Lockheed "Wooden Wonders". By the summer of 1929, John Northrop had left Lockheed to form his own air plane company and another gifted designer, Jerry Vultee, became the Lockheed chief engineer. At that time, Charles A. Lindbergh was searching for a high-performance, long-range, de pendable airplane that could easily be converted into a seaplane. Lindbergh had specified a two-seater with a low- wing for safety and wide-track landing gear plus quick take-off due to ground effect. During an accidental meeting with Vultee, the Lone Eagle outlined his requirements. Jerry Vultee remembered Col. Charles A. Lindbergh receives handshake from Lockheed executive before testing his Jack Northrop's Explorer experiment Sirius. Broke coast-to-coast record on first long distance flight. Fourth Lockheed design. and realized that with a few modifica tions it would meet Col. Lindbergh’s specifications. Using the Explorer as a base, a new Lockheed was developed following Lindy’s requirements and the Sirius was born; Lockheed’s fourth design! Construction followed the Lock heed molded fuselage and plywood wing system. Lindbergh had also speci fied a retractable landing gear, however, his schedule did not permit time for its design and testing so he settled for land ing gear strut and wheel fairings. Originally fitted with a 450 hp P & W Wasp engine, Lindbergh’s 2,974 lb. Sirius graduated to a Wright Cyclone engine of 575 hp. Lindy named his Sirius "Tingmiss- Sir Charles Kingsford-Smith stands by his Lockheed Altair, the fifth design, and first Lockheed artoq" (Eskimo for "he who flies like a to feature retract gear. He established several Pacific Ocean records in this plane. b ird ” ) and on April 20. 1930, Easter Southern Cross” flown by Sir Charles On the George Washington Bicenten Sunday, the Lindberghs established a Kingsford-Smith in record flights over nial and the 157th Anniversary of the transcontinental speed record of less the Pacific Ocean. U.S. Postal Service, Major James H. than 15 hours in a flight from Los Powered by a P & W Wasp SIDI engine Doolittle flew his Orion over the routes Angeles to New York. of 550 hp, the Altair attained a topspeed traveled by George Washington during Charles and Anne Lindbergh's primary of 230 mph. One Altair was fitted with a his entire lifetime. The Orion made the use for the Sirius was to chart trans- pilot’s cockpit well forward plus a cabin trip from dawn to dusk on July 25,1932, Atlantic, trans-Pacific and transconti with accommodations forsix passengers, while delivering mail to thirty cities nental air routes for TWA and Pan Am and this became the prototype for the along the route. during the next three years; one of his last of the "Wooden Wonders”, the The designers and draftsmen at Lock major contributions to aerial science. Orion. heed made the optimum utilization of Lindbergh's Lockheed Sirius can be seen The Lockheed Orion was, in effect, a the one successful basic design to in the New York Museum of Natural low-wing Vega with flaps and retractable develop a series of world-famous air History. landing gear. It was the first airliner to planes. Knowing they had a good thing Fifteen Lockheed Sirius aircraft were have a service speed over 200 mph. The in the Vega, they altered, adapted, constructed; five of which were fitted Orion was the most successful "Wooden modified and improved each product to with Lindbergh's retractable landing Wonder” after the Vega, and was oper accommodate the requirements of the gear and renamed Altair. ated by airlines in Europe. Mexico, and purchaser. The Lockheed "Wooden The Lockheed Altair was basically a U.S.A. The loaded weight was up to 5,800 Wonders" will never be forgotten, nor Sirius, and of the six Altairs built, only lbs. and the P & W Wasp of 550 hp will a series of aircraft like the single one was constructed initially as an Altair. enabled the Orion to attain a top speed engine Lockheeds ever to be seen again. The most famous Altair was the “ Lady of 225 mph. Continuing the enviable tradition set by its founders, Lockheed aircraft have paved the way to higher and better goals for the aviation industry to follow: pre- WW-2 Electra; WW-2 Hudson and Light ning P-38; post war P-80 Shooting Star; F-94 Starfire; Constellation and Electra Airliners; F-104 Starfighter; U-2 high altitude spy plane; Hercules military transport; and 1011 jetliner, to name a few. The Vega is generally acknowledged the most beautiful of the "Wooden Wonders” , and the most beautiful Vega surely was the plane flown by James Mattern on his solo ‘round-the-world flight. As was previously related, James Mattern and Benny G riffin had at Orion was last of the "Wooden Wonder" series, and most successful since the Vega. Maj. Jimmie Doolittle stands with his "Shellightning." Orion was only "WW" fitted with flaps. tempted to better the 1931 Post/Gatty MAY 1982 47 Completely rebuilt after minor wipeout shown below left, Mattern's Vega is magnificent in its distinctive red, white, and blue colors, as modeled in last month’s issue. Just before solo 'round-the-world flight, the cabin windows were replaced with colored panels. R ound-the-w orld-flight during July ing gear and breaking the fuselage! Chicago Century of Progress Exposition. 1932. Flying to Berlin from New York,the What had appeared to be a pasture was Mattern had the fair's insignia painted pair shattered many records and estab in reality a peat bog consisting of a soft on the fuselage side, because he sin lished "Firsts” . While flying over Russia muck covered by a grassy crust. Fortu cerely believed that this was a Century of at night, on the way to Siberia, the nately, no one was injured. Progress and was determined to prove it sliding hatch over Mattern’s head was Rescuers soon appeared and the with his flight. Truly this was the most ripped off by the slipstream. The panel smashed Vega was shipped to the Lock beautiful Vega of all; if not the most tumbled along the fuselage top and heed factory to be rebuilt. The wing and beautiful airplane of all. struck the tail; causing so much damage tail surfaces were repaired, however, the When Jimmie Mattern climbed into that the Vega became impossible to broken fuselage was replaced with one the cockpit he was alone; very much control properly. Mattern had no alter taken from another Vega. The engine alone, for there was no navigator to native but to land his blue and white was replaced with a Pratt & Whitney direct the course or to keep the intrepid Lockheed, and spotted what appeared factory rebuilt Wasp swinging a newly pilot awake. The automatic pilot was just to be a good field. As the wheelstouched developed Hamilton Standard control being developed, but was not ready for the ground they rolled for a few yards lable pitch propeller. use. The take-off from Floyd Bennett and then suddenly broke through the Jimmie Mattern was determined to try Field, NY was uneventful at the break of crusty surface into a soft mire! The land again to beat the Post/Gatty time, but dawn on June 3, 1933, and the beautiful ing gear dropped deeper and deeper with one important change; he wanted red, white, and blue Vega headed for into the muck until the resistance forced to fly around the world alone! Knowing Newfoundland, 1200 miles to the north the Vega to flip over onto its back, that Wiley Post was contemplating a solo east. When Mattern started out across smashing a wingtip, wrecking the land- 'round-the-world flight. Mattern in the Atlantic Ocean ice began forming sisted that his own solo aspirations be kept secret so that the competition wouldn’t accelerate their preparations. In fact. Mattern left the cabin windows in place until the very last moment, to make it appear that a navigator was to accompany him. Preparations continued through the Spring of 1933; Stanavo (Standard Avia tion Oil) contributing generously to the project. One of the problems was fuel tanks to fit the Vega fuselage, because the three 52-gallon wing tankage had to be boosted to 700 gallons! When Mattern heard that Wiley Post had fuel tanks for sale, he quickly purchased a 144 gal. and a 152 gal. tank. The remain ing three fuselage tanks were bought from Amelia Earhart. Mattern’s simple blue and white Lock heed Vega then underwent a startling transformation. On the white wing and horizontal tail surfaces was emblazoned the wings and tail of an eagle, in bright red. The blue fuselage sides received the feathered body of an eagle, while a Mattern's blue and white Vega after emergency fierce eagle’s head adorned the cowl, Jimmie Mattern poses with his beautiful Vega. landing in Russian peat bogg during R.T.W. and talons were applied to the wheel Note world records listed on white panel. R/C attempt with Benny G riffin in 1932. pants. Among the events of 1933 was the model of this plane featured last month. 48 MODEL BUILDER frigid weather for two weeks until natives finally found the pilot. It was another week before Mattern arrived at Anadyrsk, and from this outpost the world learned that the famous flyer was indeed, alive. Finally, upon arriving in Toronto. Canada, Jimmie Mattern found a Stanavo Vega waiting for him; the white plane emblazoned with a red eagle as was the Century of Progress Vega! A disappointed Mattern flew the bor rowed plane to Floyd Bennett Field. On the way, he made use of special equip ment to make the first international radio broadcast from an airplane. Upon his arrival in New York, Jimmie Mattern Mattern's Vega after emergency landing in Siberia, 1933. Frozen oil line forced landing on fro was received as a hero instead of the zen tundra, terminating solo 'round-the-world flight when landing gear collapsed. failure he thought he was. Well, after all, he did fly most of the way around the on his wings. As the build-up assumed gasoline and lamp oil. With the engine world, and was only about 4,000 miles dangerous proportions he decided to gasping on this diet, Mattern took off short of his starting point. Despite the dive to a warmer altitude, but during the and landed at Khaborovsk, where he many adversities, he had persevered and pull-out after a 6,000 ft. dive, the ice filled the tanks with 550 gallons of avia pressed onward toward his objective; laden ship resisted and he heard the tion gasoline. After a few more hours of the promotion of aeronautical science. starboard wing crack! Fierce North sleep, Mattern headed for Nome, Alaska, Jimmie Mattern went on to become Atlantic storms added to the worry of an 800 mile run. During his flight across an engineering research pilot for Lock the damaged wing and after flying thirty- the frigid Okhotsk Sea, icing conditions heed, and was responsible for much of seven hundred miles non-stop, Mattern became so severe that Mattern was the success of the P-38 Lightning fighter could hardly read his instruments so forced to turn his ice laden Vega back to plane. He was also very active in the intense was his fatigue. As a result, he Khabarovsk! More fuel, more sleep,and complex organization and planning for landed on a beach as soon as he sighted a quick check; then off again for a suc ferrying planes to Britain during the the coast of Norway. Fuel was flown cessful crossing. Despite fog and more second world war, and remained very from Oslo while Mattern assessed the ice, Mattern fought his way to about 600 active in aviation during the post war damage, which was the right wing ply miles from Nome. years. wood leading edge covering. Tempo As he passed the Anadyrsk inlet, and rary repairs were made and the Vega was about to cross the Bering Sea, the made it to Oslo to refuel. Within an hour all-important oil pressure failed because ACKNOWLEDGMENTS he was in the air again; bound for the lines had frozen! The dying engine The author wishes to express his grati Moscow. After a refueling, a quick could no longer deliver the required tude to the following for their kind and check of the plane and a few hours of power and was ready to seize,so Mattern generous assistance with photographs sleep for Mattern, the pair were off to decided on another emergency landing. and historic information which made Omski; 1,800 miles over the Ural Moun Below was the hard but rough tundra, this story possible; tains. and touchdown ripped the beautifully Walter J. Boyne and the National Air Refueling and rest at Omsk; then off streamlined landing gear from the and Space Museum, Smithsonian Insti again for Chita, another 1,500 mile run. Vega, which came to rest on its belly in tution; Bruce Reynolds and the San During this flight, one of the several fuel Asiatic Russia. The flight was over. Diego Aero-Space Museum; and Robert lines broke and Jimmie was almost over The aviation community and the C. Ferguson and the Lockheed-Califor- come by the fumes before finding a suit world pondered the fate of the flight, nia Company. able landing area. Misfortune plagued while Mattern fought starvation and To all a sincere "Thank You’’. · Mattern in this flight because, in landing, the Vega tail struck a tree stump and the right half of the stabilizer was sheared off! Russian mechanics rushed to the scene and helped to repair the damage. The field was so small that the Stanavo Vega tanks had to be drained of fuel to make it light enough to take-off. This necessitated an unscheduled stop at Krasnoyarsk, which wasted valuable time. The next stop was to be Irkutsk, but when Mattern arrived, he found the field was flooded and the pilot was forced to fly to the west to Belvia, losing more precious time. Belvia was the last stop in European Russia, so the Vega received 400 gallons of fuel and a set of new spark plugs for the engine. After a short nap, Jimmie Mattern was off again for Khabarovsk; a 2,000 mile flight. Fighting fatigue all the way. Mattern was forced to give-in only 300 miles short of his objective, by land ing on the beach of a river island. After a well-earned sleep, the pilot found that James Mattern, far right, during ceremonies at Lockheed plant concerning P-38 and ferrying of the only fuel available was low octane fighter aircraft to Britain in WW-II. His long-range flying experience was major contribution. MAY 1982 49 m imcs By DAVE THORNBURG . . . Featuring a couple of one-evening projects for those discarded Cox .049 engines. Flying saucer or F/F bipe . . your choice. • Sometimes Friday evening arrives control line. Even the cheapest R/C job memory during periods when I’d mis before you’re ready for it. All week costs an arm and a leg. And how many placed the magazine. you've had this nagging urge to build ukies have you seen disappearing into a The machine is basically a torque- something new to fly on the weekend, cloud? So what you need is a simple reaction helicopter. Crank its engine and suddenly the weekend is here and sport free flight design, something built and the prop turns counter-clockwise, your building board is still buck naked. around an inexpensive .049 engine. right? Engine torque will then try to spin And the urge is still with you, getting Suppose, just suppose, that you have the rest of the beast clockwise. . . after it stronger. ready access to an old Cox reed valve leaves your hand, of course. As it spins, Oh, what to do, what to do? engine . .. one of those noisy, greasy, the thrust of the four rotor blades is Well, you could take a cold shower, easy-starting little critters that has its added to the thrust of the prop, and the like your Sunday school teacher used to own gas tank built right onto the back of result is that the whole device goes right suggest . . . but that never worked the crankcase. Almost every modeler I straight up. . . Usually. before, did it? How about a movie, know has a couple of these little gems TYPICAL FLIGHT DEPARTMENT instead? A movie will cost you four rattling around in a drawer someplace. If Holding the mounting plate with the dollars plus popcorn, and when it’s over, not, check your local flea market. And fingertips of your left hand, you crank you’ll find you’ve wasted three hours of don’t pay more than two or three bucks: the engine, remove the battery clip, and building time, and your urge is still you may have to spend another three on tweak the needle valve for max RPM. unsatisfied. a rebuild kit if the reed has gone sour. Now you raise the beast high above your So why not take your movie money If you can locate one of these engines, head and, still holding the mounting down to the hobby shop and invest it in and make it run, then you have no plate in your fingertips, launch it with a the raw materials for a flying machine excuse for not building a “ German quick twist of your wrist. This is impor . .. something simple and quick, some Saucer." The German Saucer isn’t my tant: you must set the creature spinning thing you can have ready to fly by idea: it first appeared in American as it leaves your hand. Otherwise it will midnight, something that won't break Modeler Magazine back in 1959, con fall with a thud. A screaming thud. your heart or your notebook if it disap tributed by one Ernst Skirde. It’s an idea Now the next step in the launch pro pears into a cloud and never comes out that’s too simple and neat to die. The cess is critical, so listen up good, y’hear? again. dimensions (see sketch) aren’t critical, as The instant the saucer leaves your hand, That pretty well eliminates R/C and I’ve built two or three of them from run like hell! Which way? Don’t even “ GERMAN SAUCER" FF HELICOPTER FOR COX .049 (FROM SEPT. 1959 AMERICAN MODELER) 2" DEEP SECTION OF 1 GAL. BLEACH BOTTLE (PLASTIC). 1/16" MUSIC WIRE 2- 1/ 2" ť Ύ ) r I V 4 - 1 / 2 " _____ 50 MODEL BUILDER By WALT MOONEY . . . Even though it's not the configuration you might look for to get long flights, and with additional sheeting and heavy canopy, this stubby little homebuilt still makes long flights. • This is a perky little single-place The model in the photo weighs 21 compared to tissue. homebuilt design from down under. grams, complete with a rubber motor. Nevertheless, the Starlet is a cute The three-view has been published in This is rather heavy for a competitive model. It looks a little like a low aspect several aviation publications as a part of Peanut, but the model is still capable of ratio, stubby, Mooney M-18 Mite. Wing the HAPi Engines Inc. advertisement. A making flights of 25 to 30 seconds. Most rib spacing and structural members in Corby Starlet was brought from Australia of the excess weight is due to the use of a the tail all match the three-view. Obvi to the last Oskosh E.A.A. fly-in aboard a cut-down Sig six-inch canopy which was ously, a much lighter model could be Qantas 747 that brought several other designed for U-Control models, and as a made with little or no scale judging Australian aircraft and several hundred consequence, is much heavier than penalty by (1) elim inating the sheet E.A.A. members to the get-together. It necessary. A heavy plastic propeller is covering on the vertical and horizontal appears to be an excellent design for required to balance the model as built. tail, (2) eliminating half of the wing and Peanut modeling and the only inten Also, to maintain the basic character of tail ribs, (3) using bond paper for the aft tional change from exact scale that was the Starlet, more than the usual amount top fuselage covering, and (4) molding a made on the model in the photos was an of sheet covering was used. No matter Plans on pages 52 & 53 increase in wing dihedral. how thin sheet balsa is, it is still heavy Text Continued on page 96 MAY 1982 55 Can you believe it? A non-combat model in Dirty's column! Vic Gamer's Goodyear with his own prop and fueling system. Seen at Merced. By DIRTY DAN” RUTHERFORD ontrol line PHOTOS BY CHARLIE JOHNSON • It seems as if I get an awful bunch of mail and all of it headed for the garbage Winter, I have had nothing to do with mail, especially the past couple of years. can. But just as I was tossing this catalog MA. Except belong to the AMA, of Although not important to you or this full of discount trophies in the can, course. And I know damn well that I discussion, my name seems to have something on the label caught my eye. have never written to a trophy company found its way onto many different On the line directly above my name asking for quotes and/or catalogs. I do mailing lists, and it is easier to toss the were the bold type letters spelling out have a Contest Director license with junk mail in the garbage than it is to do MODEL AVIATION. Hmmmm. . . . AMA. It is likely that my name, along anything more permanent about it. Other than a couple of articles that I with several hundred others, was pulled Today was no different; piles of junk did several years ago for then-editor Bill out of the computer memory banks. Above: Here's your $100 wood Rotation Station, seen lurking at the Nats. Right: Does anyone recognize the master, Riley Wooten behind the shades? Holding for unidentified (Cooper?) at the Nats in FAI. 56 MODEL BUILDER "Adios old paint." Tim G illott releases Shark during 4:50 run. these "lucky” folk getting their very own Is trashy stuff like this all we can come The real kicker, and what bothers me wholesale-type trophy catalog to fondle, up with for promotion of modeling? I most, I suppose, is that to fly a model caress and love forever. It's not the fact mean, having teams of fliers work their cross-country, you really should be that I don’t want to buy trophies via their models across the country has to be one borne along by a vehicle of some sort, toll-free line, purchasing trophies in this of the biggest jokes of all time. What what with walking so many miles being manner seeming to be asking for trouble purpose could it possible serve? How such a drag and all. Almost as much of a anyway, what bothers me is that the does it promote model aviation? Does it drag would be wheeling off cross AMA mailing lists are (evidently) avail advance the state of the art in modeling country, so those nice, smooth highways able to these people. and modeling equipment in any way? are just too much to resist and here we I made a promise to myself (and Bill Can you, as an inaivudual, point out any have pickemups, campers, and such Winter, although he doesn't yet know it) tangible benefit from this cross-country with pilots sprouting out of them, flying than I would never again get involved in race? a model in what would have to be close AMA politics, and I’m not doing it now. Oh, sure, it is probably a great time for proximity to a roadway with other But I would sure like to know how much those actually involved in the race (and I traffic on it. An out-of-control model it costs to get an AMA mailing list, and think I will continue to call it a "race” , as going one way at, say 60 mph, an oncom who can get them. (Furthermore, most I am familiar enough with rallying to ing car clipping along at70orso . .. let’s publishers request a signed permit from know that more than just a little racing see, that’s a closing speed of 130 per their subscribers to pass around their goes on quite frequently, especially and could easily be higher. addresses, wen) when you get behind on your minute). Of course, that smooth roadway is just AND ANOTHER THING And everybody gets those fancy jackets too much to resist when it comes time Golly, Wow, I see where our AMA to wear, which must be quite a thrill, as for a pit. "Bring ’er in, Harry, can’t see a pulled off another big spectacular with around here we have a fellow who wears car for miles and I don't think there is the recent completion of yet another his all of the time, has been known to go one around that curve.” Hey, it must cross-country race, oops, "rally” , I guess out of his way just to walk in front of happen, one of the pictures in the report they called it this time around, or at somebody rather than behind where he showed a model taking off from what least used rally-type scoring on each couldn't be seen nearly as easily. You was clearly a road, white line down the leg. laugh. I've seen him do it! Continued on page 92 Mr. Moto gets arm lock on Masked Marvel during Nats. Could be "Hey, watch it with the hands!" Gary Frost and Stubblefield mix it Cleveland in back. Not sure. up during FAI Combat at the Nats. MAY 1982 57 By TYRONE PARKER . . . An easy-to-build 1/2A control line sport model with detailed instructions for assembly. An excellent model to get that youngster interested in the hobby. • Crystal Amanita is styled generally . . . slide spars into position . . . lightly gerons to fit inside top and bottom like the modern parallel-line type aero trace spars’ outlines onto wing with a edges of left and right fuselage side batic monoplanes, and is designed to be .5mm mechanical pencil .. . slide spars plates and glue in place. vibration absorbent in the front and to back out .. . slide fuselage away from Cut top and bottom front fuselage distribute vibration throughout the rest wing center to clear spars area .. . glue plates from 1/16 ply . . . glue bottom of the airframe so as to minimize excess spars in place with aliphatic resin glue plate in place and with the grain running stress in any one area. . . . slide fuselage back to wing center. . . across the fuselage center line. .. plank Crystal Amanita has proven to be press spars on one side of fuselage fuselage bottom from back of bottom durable and a really good flying machine tightly to wing with thumb and fore plate to back of side plates with 1/16 for about two years that I have been finger . .. tack those spar halves to wing medium balsa .. . trim and shape edges flying and improving the design. It is with cyanoacrylate adhesive then press to 1/4-round and sand smooth. Glue top well worth the time and care to cut and and tack spar halves on other side. Slide plate and planking in place. . . trim and fit the parts snugly, as accurately fitted fuselage about a 1/2 inch back from shape edges and sand smooth. Cut fin parts will require minimum glue to hold wing center.. . apply glue around wing and rudder from 3/16 light balsa . . . securely and no amount of glue will center . . . slide fuselage back to wing glue fin to fuselage . . . taper rudder to make an improperly fitted seam as center .. . use triangle to check that about 1/16 at trailing edge and tack secure as an accurate one. Excess glue fuselage is straight up from wing top and lightly in place. Sand both sides of fin only adds undesifable weight, which straight back from wing trailing edge. . . and rudder . . . shape fuselage edges both decreases flight performance and tack with cyanoacrylate adhesive and back from top and bottom planking and dampens flexibility, which results in seal fuselage to wing seams with alipha fin and rudder edges to half-round . . . premature airframe fatigue. tic resin glue. sand smooth and separate rudder from Glue one piece 1/8 x 2 x 24 inch Cut four firewall plates from 1/16 ply fin and fuselage. medium balsa to one piece 1/8 x 4 x 24 and laminate with cyanoacrylate adhe Cut stabilizer from 1/16 medium balsa inch light balsa, to form one piece 1/8x6 sive as shown on plan. Cut left and right . .. elevator from 1/16 light balsa . . . X 24. Sand top and bottom of wing blank front fuselage side plates from 1/16 ply sand tops and bottoms .. . shape edges when dry . . . trim tops to outline shown and sand smooth. Trim fuselage front to to half-round and sand smooth. Cut top on plan . . . shape edge to half-round angle shown on plan top view and glue and bottom elevator control horn and sand smooth. firewall in place. mounts from 1/64 ply . . . sand smooth Cut fuselage to shape from 3/16 bass Slide fuselage side plates into position and glue in place. Drill 1/16 hinge holes wood and sand bottom wing spars to . .. trim inside back edges to fit flat to in stabilizer and elevator as shown on shape from 1/32 ply . . . shape top edge fuselage . . . trim firewall edge to fit flat plan and glue stabilizer in place. Tack of top spars and bottom edge of bottom to inside front sideplate surfaces and rudder lightly back in place. Cover wing spar to 1/4-round and sand both spars glue side plates in place. Trim 1/8 inch smooth. Slide fuselage to center of wing quarter-round basswood fuselage lon Continued on page 77 MAY 1982 59 Chris Beattie firm ly attached to winder by Ed Wogulis launches Wakefield at Harts Lake Tim Warren launches Mulvihill model at '81 strap around his waist. Semi-Finals. Nats. Coached by Chuck Markos. by TOM HUTCHINSON PHOTOS BY AUTHOR 20518 S.W. Leeds Ct. Aloha. OR 97005 • By the time you are reading this, I edges, mind you! He stacks and glues be peeled off easily. It’s also very good hope that signs of spring have appeared, sheets of 1/8 balsa together to make the for attaching paper patterns to rib stacks, and that you’ve managed to dig yourself proper width of the trailing edge. In the etc., since it peels off without a trace. out of what seems to be the worst winter middle, he puts in a layer of 1/32 ply, and DARNED G O O D AIRFOIL . . . Eppler weather (except for the West Coast) in the bottom layer is of 1/64 ply. When 205 recent years in the U.S. Here’s also passed through the saw, the result is a This month’s DGA is the latest hot hoping that most of you have taken laminated trailing edge that is light, setup for RC sailplanes, but it looks to good advantage of the long building strong and straight .. . and it’s likely to me like it might be useful for free flight, season, and have something new ready stay that way. also. One of the Eppler 205’s prized to go when the weather clears. (I wish I Wayne has also used his new saw to characteristics for RC is that is will had something to show for the long make jigs and fixtures to speed up operate over a wide range of speeds, to winter layoff besides several half-com construction. For instance, he cuts out enable fast penetration upwind for pleted airframes hanging around, just spacer blocks for placing wing ribs and thermal searching, but with good glide waiting for the spring pre-flying flurry of shear webs in the correct locations, performance at slower speeds for light activity.) almost eliminating the need for plans. lift. These are the same characteristics One person who hasn’t been wasting He’s also made a miter gage setup for needed for a good airfoil for FAI power, his time lately is Wayne Drake. He just mass-producing gussets. for example. The 10.5% thickness is purchased a new Rockwell bandsawand One final tip from Drake is the use of greater than that normally used nowa called the other night to relay the labor- 3M Spra-Mount spray adhesive for days, but that shouldn’t cut the climb saving inspirations the new machine has making up sanding blocks. It’squick and down much (Dave Benepe’s computer given his building technique. Well, I’ve easy, and permits the old sandpaper to simulation in the 1978 NFFS Sympo had a bandsaw for awhile now, and showed that there was a total difference consider it to be one of the basic tools of of only eight feet in altitude between six my workshop, but Wayne's worked out percent and ten percent thick airfoil a few hintsand kinks he'd like to pass on. section, and that the ten percent section The main use I put my bandsaw to is had 60 seconds more calm air duration the stack-cutting of wing ribs and other than the six section.) The extra thickness identical curved pieces. Wayne has should make for stiffer wings as well as a found that adding a block of hardwood better glide. Interestingly enough, the or particle board to the bottom of the 205 flunks the "Eppler test” for upper stack makes it much easier to follow the surface drop-off, but only by 0.1%. It lines on the pattern. I had noticed that seems to have the basic shape of many ribs cut from hard balsa seemed easier to successful power airfoils, with a slightly do than those cut from softer stock.) upswept leading edge and flat bottom. Wayne has also found the fence to be MYSTERY MODEL invaluable for lots of tasks. For instance, I haven’t included too many gliders in he doesn't stack sheets to cut out ribs; the MM Sweepstakes, since there aren’t he uses a solid block, then slices off the as many distinctive-looking birds as ribs like salami at the butcher shop. He among the gas models. (The early Nor also uses the rip fence in conjunction dics all seemed to have elliptical tips; with the tilting table on his saw to cut now the style has changed to straight trailing edges to the proper cross- Former Wakefield World Champ Albert lines). But this month's MM is one that Oschatz, prepping for flight at 1973 World section. But not just any plain trailing Champs, Weiner Neustadt. should be familiar to avid followers of 60 MODEL BUILDER the F1A (nee A/2) class. It was used for a place on the National team by the designer twice, and made the flyoff in another flyer’s hands in later years. The tapered tips, with tip plates, fuelage shape, and top and bottom rudders are the main identification features. If you think you have this model identified, send in your guess to the MB office (619 W. 19th, Costa Mesa, CA) to see if you were early enough to win the free subscription. MODEL OF THE M O NTH: Brian Martin’s Streaker Open Power I have a soft spot in my head for British Open Power models, I guess, but I’ve always admired the concept of a gas event free of any restrictions but engine run and max. (I also agree with John O'Donnell's suggestion a few years back that the FAI Power be conducted under unrestricted rules ... let the World MAY MYSTERY MODEL Champ be the guy who brought the hottest model he could trim!) Anyway, which has the main properties (I wish I gram mass could be used to obtain a 0.1 this month’s three-view (from Free could find a good used one of these— to 10 g range. Flight News) is a good example of the TH) required in an open power motor, The Plain Set is available for $3.50 from breed. Here’s what Brian has to say i.e., good starting, good running, light Micro-Air, PO Box 1129, Richland. WA about his design: weight, high power. The tank position as 99352. "Before building Streaker, I had been shown, combined with an RV carbur TESTS O N DIFFERENT FIN POSITIONS flying 5 cc. (.29) powered non-VIT etor, means that the plumbing (or the FOR F1C MODELS models which were reliable and consis motor’s pressure fuel system can be kept (reprinted from Free Flight News) tent, but hadn't enough performance to to a minimum, and better motor runs are BACKGROUND do well in (lyoffs. Streaker was an achieved. Tests on the three basic fin positions attempt to build a higher performance "A further aid to reliability is the (in front, on the tailplane, and behind flyoff model whilst retaining the reli almost unbreakable glass rod fuselage. the tailplane) were carried out in the late ability and consistency of the previous Fitted into the front of the rod are large 50‘s/early 60's, in the days before vari models. dural-faced engine bearers which help able incidence (VIT). As a result of the "The model flew much better than the engine develop full power with tests, I changed from the 'forward fin' previous models. Streaker is not a high- minimum vibration. ’ position to the ‘fin behind' layout and performance still air model, being gained approximately 50 seconds extra capable of about 4-1/2-5 minutes from a BUILD YOUR OWN SCALE? duration. I have continued to usethe 'fin 10 second motor run. What perfor What the modeling world has needed behind’ layout to the present day, but in mance it has is achieved by the brute even more than a good five-cent cigar or the mid-70’s, following the current power of a ‘40’ hauling a big, stable a reasonably priced FAI engine, has trend to high-aspect ratio sheet wings, model up to a good height. More been a reasonably priced weighing de bigger wing/smaller tail, etc., I started to important than out-and-out perfor vice. Now, Micro-Air Precision products have difficulties with it. This led to tests mance is that this model will max in any may have come up with a solution in the on triple fin and T-tail layouts, both of weather and will survive a bad launch or form of a do-it-yourself wooden beam which were found to have definite a short motor run. The wing is of all balance kit. Actually, it’s more of a plans disadvantages in English weather. Cur sheet construction. The reason for this is set, with stick-on templates, instruction rently, I am flying a mixture of fin- that built-up wings have a tendency to notes, etc., to enable you to produce, behind and foward-fin airplanes and alter their warps and spoil the power from ordinary modeling materials, a haven’t yet decided which to stick with. pattern. Once built in, wraps andan all balance capable of weighing from sheet wing are retained and a consistent thousandths of an ounce up to one 2. TESTS ON FORWARD-FIN. ON power pattern results. pound. THE TAILPLANE AND REAR-FIN LAY The wing is also very strong and will The calibration instructions show how OUTS. withstand the knocks received during to read out weights in ounces (from .001 The tests are carried out following a competition flying in bad weather. The oz. to 10 oz., using an accurate one period in which I had considerable section is a Pimenoff, which is stable and ounce calibration weight) or pounds, trouble with forward-fin airplanes; the forgiving, and combined with a 1.5 tail but the unit could be easily made to two I sent to the USA for the 7953 finals volume coefficient, 70% CC and VIT, read out in grams, which are more were written-off due to spiral instability. gives a model which will ride well convenient for modeling use, by using a A 25% increase in the fin area appeared through turbulent air. 10 g. calibration mass. This would permit to cure the problem, but isolated write "The engine is a K&B 40R Series 69, readouts from one to 100 g, while a one offs still occured. The lesson learned DARNED GOOD AIRFOIL - EPPLER 205 ______ STATION 0 1.25 2.5 5 7.5 10 15 20 25 30 40 50 60 70 80 90 95 100 UPPER 0 1.8 2.6 4 4.9 5.6 5 6.8 7.6 8.1 8.3 8.1 7.2 6 4.6 3 1.45 0.75 0 LOWER 0 -0.9 -1.25 -1.6 -1.95 -2.05 -2.05 -2.2 -2.26 -2.15 -2 -1.6 -1.4 -1.15 -0.95 -0 .65 -0.3 0 MAY 1982 61 ending up with approximately fwo ounces of lead strapped around the nose with rubber bands. When trimmed out, performance appeared similar to A the forward fin model despite all the lead. It climbed higher but didn’t glide as well. I retired home to think about it and, in particular, to work out where all that extra tailplane lift came from. A plausible theory was produced, as follows . .. The tailplane operates in a spiral slipstream, the angle of spiral being greatest at launch when prop slip is at maximum. The left half of the tailplane is thus effectively operating at higher incidence than the starboard. On the underside we would expect pressure to be higher on the left side than on the right, causing the flow to bend towards the right side. On the top, pressure would be higher on the right side causing the flow to bend towards the left. A top fin placed in this flow would produce right turn, but would also serve Clarence Haught receives few words of wisdom as flow straightener, increasing tailplane Don Chancey won A/2 Nordic at Nats after five-year hiatus. Stopped by F/F area after from Charlie Martin, 1981 US Power Team lift and reducing the induced drag that m em ber. flying R/C Sailplane event. would occur at the tailplane TE when the eventually was that if any signs of spiral opposing crossflows meet. more stable instability are in evidence, the order of Returning to the model, performance 5) Better glide due to more efficient fin area increase required is 50%. The was now being wasted by having the CC tailplane signs are, firstly, an inability to fly a too far forward and it was decided to CON consistent flight pattern in windy weath replace the existing low aspect ratio 1) Rolled less well (but well enough), er, and, secondly, in extreme cases, tailplane by one of much higher AR. requiring wider climb circle. sudden changes in direction when flying One degree of incidence was removed 2) Required slightly more right rudder side-on to the wind (fin stalling). (Extra) from the wing and the lead was taken for power turn area on the sub-fin was added for out. This proved about right, and a good 3) Need to watch tailplane keys esthetic reasons and caused consider trim was achieved easily next time out, The number two model was similarly able trouble, the model barrel-rolling although a further increase in subfin modified to check for consistency and left violently during the first three area was needed to cure a mild right presented no difficulties. It was then seconds of the motor run. Once this was wing swing at the start. Performance was modified to a rear fin layout. The same removed, it trimmed out satisfactorily, now 7/2 minute up due to climbing top fin was used and an underfin was but I had lost confidence in forward-fin steeper and faster and gliding better due fitted, as I was now resigned to the need airplanes by this time and decided to test to the higher AR tailplane. It was put into for it. The high AR tail was retained, but other layouts. contest use and differences as compared what to do about the incidence? It Two forward-fin contest airplanes to forward fin were noted as follows: seemed likely that a (in behind the were sacrificed to carry out the tests; the PRO tailplane would perform a flow-straight procedure being to modify one and sort Ί) Duration up 7/2 minute ening function on the tailplane to some out the bugs, then modify the second 2) Much easier handling in windy extent, but less well than the (in on the one to check for consistency of result. weather tail. Incidence settings were therefore Fin on the tailplane was tried first, as it 3) Less tendency to go over the top in left as they were, with the expectation required fewer modifications. The first windy weather that the model would tend to loop, 4) Climb steeper/faster and generally airplane was modified by moving the Continued on page 93 existing fin back onto the tailplane. The underfin was also removed, as I hoped to do without it, being liable to damage in DT landings onto the runway, and also because it concentrates stress forward of the tailplane mounting, necessitating a beefier fuselage construction. The first flight was . . . well, mem orable! Not expecting to need much change other than possibly to rudder adjustment, I set the motor for 3/4 full power and launched a four-second run. It turned right sharply and made to bunt (outside loop) into the ground. The turn eased off after two seconds to pull the nose up a bit and the motor cut just as contact with the ground seemed immi nent. Diagnosis was a tight right turn at the start and gross under-elevation under power. The underfin was re placed to straighten out the right turn at the start, and a lot of incidence added progressively. A staggering 7/4 in. (+2°) "Ameling isnt it-that someone ugly likfi me cart- was required to get a normal climb and this caused problems on the glide. make something beautiful li (ae -tkis." MAY 1982 63 Ferril Papic's Blériot No. 7 in flight. A very consistent performer. a s t r o ’s e l e c t r ic F/F CONTEST athYear • This may be hard to believe, but the By BILL STROMAN . . . The free flight portion of Astr Flight's 8th weather did affect the turnout in a Annual electric contest brought out a bevy of beauties. Electric power contest in Southern California! No high is coming of age! winds, or below freezing temperatures, but fog. We had a starting time of 8 AM general. The fog lifted about 9:30, and and seems to be the motor for the larger for free flight . .. normal gas powered we got down to business. free flight model. contests can’t start until 9 AM because Bill Warner had a whole stable of scale Clint Gardener entered a Luton Minor we fly next to a golf course . . . but models, these included a Lee Richards that was modified from a Flyline kit. This because the electrics are quiet, we can No. 3 annular wing, a Paulhan Tatin model had an Astro 020 motor, and fly earlier. This may be a thing to think Torpille, and a Caudron “ Simon” . The really was too fast. We suggested that he about if you need a flying field nearer Simon has a 60 inch span, and was increase the prop diameter next time to home. At 8 AM, one could see about powered with an Astro 035 motor and an cure this. As this was his first time at a fifty feet. This forced us to sit around and Astro reduction unit. This power more contest, I thought he did very well. At admire each other’s model, and talk in than flew the model off the ground. least he made some new friends and Tom Arnold and his clean Blackburn Clint Gardener with his Luton Minor. It's a Another view of the Blériot 7, with builder/ Firebrand. Flyline kit. flier Ferril Papic. 64 MODEL BUILDER Jim McMahon's cute Ifttle Powerhouse is a Bill Warner and his pretty Aero-Torpille No. 1. A beautiful aircraft in any scale or power fine performer. mode. Art Herbon's Fairchild 24. Linda Cope's New Taube, with Garfield in the pit, took first place Bill Stroman's Staaken R6, all seven foot span and four engines of it. in Junior event. Info on the pretty girl by written request. learned how to prepare his model for changing to 5-1/4 x 4 prop to increase score. We were also very close in static the next contest. One of the other this), but was trimmed wrong. By the score. I’m glad I didn’t have to pick modelers offered to send send him a time I had balanced it, and was hand between them. three-view of his model for static judg launching it, I discovered that it had too The man who did the judging was Joe ing, others helped him trim the model much down elevator. It landed down Tschirgi, and one would have to go a and helped in general, but then, that’s wind and hit McDermoth’s moped. long way to find a more qualified per the way free flight scale modelers are, Didn’t hurt the moped any, but did son. Joe flys in scale RC and is very we help each other. some damage to the front end of the knowledgeable in full-sized as well as Art Herbon flew his Fairchild 24; sure Staaken. Thank goodness it has knockoff scale models. We want to thank Joe for looks good in flight, very stable, got wings, they weren't hurt at all! Looks like doing a very hard and thankless job. maximum for flight, but had trouble another week's work to get it in the air Well, it wasn’t so thankless, as Joe with the R.O.G. and lost some points again. Oh well, need something to do seemed to enjoy Bill Warner’s scale there. Maybe next contest Art will have anyway. presentations very much. this problem cured. Tom Arnold had a The man to beat in scale was Ferril Joe also flew in the unlimited event WW-2 Blackburn Fireband that was very Papic. His Bleroit No. 7 can make with an Astro 020 powered original detailed, but seemed to need more perfect flights every time. This contest design. All of Joe’s modelsaregreat,and power to fly well. was no different; that plane really is this one was no exception. Very clean Of course, I must tell you my sob story. trimmed to perfection. Just to make lines, slight pylon mount for wing, had a Got two of the new Astro 035 engines things hard, it is also a very detailed good climb and a flat glide. Jim McDer and thought it would be a good idea to model that always gets high scale points. moth flew his Hummer II design in this put them in my seven-foot Stakken I had entered a 30-inch span DH-6 event, and got two three-minute maxes bomber. Like all modelers, this took biplane, and had to tie Papic’s model in on 25-second motor runs. It sure is nice longer than I thought it would, and I flying, that is, a perfect score. After two to see how far electric power has ad spent a week repairing and painting the flights that were good, but not good vanced in the last few years. thing. It seems to have the thrust (am enough, I lucked out with a perfect I started the 02 replica event by flying Jim McDermoth and his Hummer 2. Jim again, with his Strato Streak. Joe Tschirgi's original Mark II has interesting pow er pod. MAY 1982 65 there were times when three of us were in the same heat and there was no prob lem. In fact, we have a three-minute warning prior to the start of a heat and we wouldn't even fire the first car until they announced two minutes. (Hmmm, guess I shouldn’t be w riting in past tense, as we still race 1/8, still get in the same heats and still can get several cars fired and to the line in not much time at all.) The point here is that we would get along just fine all through 1/8 racing and then when it came time to run 1/12, all the little irritating hassles would start. Nothing big, you understand, but have you ever tried to charge, to the max, four 1/12 cars with three chargers, and this was back in the days when there were only ammeter-equipped chargers avail able? Not such an easy thing to do, especially when you have to do it for two practice sessions, three heat races and one main. And the cars always needed fiddling between races. Change a gear AIRCRAFT SPRUCE & SPECIALTY CO. ratio here, different rubber there, less P.O. BOX 424 · FULLERTON. CALIFORNIA 92632 · (714) 870-7551 wing on this one, rock in the gear on this one, bad tweak in that one, that one is FIRST IN SP RU C E-Second to None In Building Supplies only half-charged and it's two minutes to the start... Aaarrrghhh, let me outa my Valkerie into a figure 9. As this did 3. Bill Warner Paulhan Titanhere... some damage, I was out of the running, 4. Art Herbon Fairchild 24 Today in 1/12, things have changed a and the rest of the fliers got serious. Jim 5. Clint Gardener Luton Minorlot, the chargers for one thing are a lot McDermoth’s Strato Streak can really 02 REPLICA better now, but to be real competitive climb on power, then shift into a flat 1. Jim McDermoth Strato Streak there is even more fiddling to take the glide for long flights. Jim McMahon had 2. Jim McMahon Powerhouse place of charging hassles. Have to swap a Powerhouse that was very light and ENDURANCE different rubber around to get things had a great idea for an engine timer. This 1. Jim McDermoth Hummer II just perf, apply messy traction additives was made from an escapement from a 2. Joe Tschirgi Original II to the tires, still have to play with gearing plastic robot. The escapement drove a JUNIOR a lot, taking care of the motor is a story nylon bolt. A ring was put on the 1. Linda Cope New Taube all its own, ditto with the batteries, espe threads, and a string hooked to the cially since Sanyo cells came on the motor switch under tension. As the bolt scene with their seeming dislike for less turned, the ring followed the threads than perfect charging procedures. Fuel Lines.... Continued from page 20 until it came off.turningofftheswitch. It It comes down to the fact that, at least was really clever, worked well, and best for us, racing in 1/8 scale is much less of all, very light. work and a lot more play. Less work We had one junior entered. This was TABLE 1 because the cars just run and run, all you Linda Cope, Lonnie Cope’s daughter. TEST/LOAD RPM TORQUE BHP have to do is keep that motor supplied She had a model that looked like a 1. 10150 120 1.208 with fuel. More play because the main Taube, of all sheet construction. It’s pilot 2. 10350 118 1.211 events, and quite often heat races, take was a profile of the cat, Garfield. Do you 3. 10800 117 1.253 more time ,to complete. Even a 50 lap think Linda was trying to influence me, 4. 11200 116 1.288 5. 11500 114 1.300 main event, which is considered short, as I'm a real fan of Taubes, and a cat 100 lappers being more common, will fancier to boot?? By the way, the model 6. 11700 111 1.287 7. 12000 103 1.225 take about 15 minutes for the winner to flew very well and she really earned the 8. 12200 98 1.185 complete at our track, with 18 second trophy. 9. 12300 96 1.170 laps being a pretty decent pace. And for The trophies were really collector’s 10. 12700 92 1.158 100 laps, you just double that driving items. Each walnut plaque had a solar time. In addition, a 1/8 car is going just as cell from the Solar Challenger mounted fast at the end of a race as it was for the on it, as well as a plate identifying the first lap, where 1/12 cars go real good at cell, and another plate giving the event R/C Auto...... Continued from page 43 first, drop off a bit through the middle of and place. Great idea Bob Boucher!!! the race and then get decidedly slow at Each person who entered also received a Associated RC300. The MRP car had a the end of the race. Then there is the poster of the Solar Challenger, signed by little problem with bending axles once most aggravating part about 1/12 . . . Bob Boucher. Bob, as you may know, in awhile, those 1/4-inch numbers just watching your car suddenly slow up, built and designed the power system for can’t take a lot of pounding. But other telling you the batteries just took a the plane that made the flight from Paris than that, the cars were reliable; we’d dump, and while you might have won to London using solar energy for its race 'em, prop ’em up against the the race from a driving/car setup point power source. bumper on the van until the next heat of view, you lost the charging contest Well gang, that’s about it, we all had a and then race ’em again. All we really and everybody who you just smoked off great time. Too bad there weren't more had to do was to keep fuel in the tanks wheels by and there isn’t a thing you can of us. Hope we don’t get bad weather and maybe change rubber compounds a do about it. next year. couple of times. With our heat racing OK, the majority of R/C car racers SCALE system it was possible for all four of us to today prefer to race 1/12 scale, enjoying 1. W.R. Stroman DH 6 be in a heat at the same time, although I every aspect of it, including all of the 2. Ferril Papic Blériot N. 7 don’t remember that happening. Still, fiddling, so I am in the minority. But 66 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER WHAT'S NEW FOR 82? Revolutionary new electronic items to make R/C much safer and more fun. DATA MASTER Digital pulse meter with internal servo drive. Test and set up you r servos or com plete system. Less Connectors. N O ISE T R A P 22G20-Data Master. Kit $39.95 22G20C-Data Master. Assembled 49.95 Solid state unit completely eliminates noise picked up by long servo leads. Perfect for large models. Works with ANY system. Less connectors. 26K17-Ace Noise Trap Kit $3.95 REDUNDANT POWER SOURCE Autom atically switches in a back For more information, send $2 up power source when the primary for our new 100 page catalog. pack fails. Less connectors, with $1 handling on all direct orders. CHRISTY MIXER sw itch. On-board, 2 channel mixer. Comes 26K15-2 X 5 Power Source assembled and calibrated, less connectors. K it $12.50 26K15C-2 X 5 Power Source, 26K10-Christy Mixer, Assembled 19.95 Bi-Directional $29.95 A(1 R/C, Inc. 26K11-Christy Mixer, I Uni-Directional 29.95 Box 511 D. HIGGINSVILLE. MO 64307 816 584 7121 there are an awful lot of you guys who clutch bearings once, twisting up one of back together and prepared for a full enjoy car racing, who are only racing their older-model gear diffs twice and season of raci ng. No chassis parts needed 1/12 scale, avoiding 1/8 because some eating several main gears. Better clutch replacing, the motors were all in super body told you it was a big hassle. Maybe bearings from Associated solved the shape, thanks mainly to running effec it was a hassle for them, it isn't for me, clutch problem, switching to a Thorp tive air cleaners and good fuel. Other and it might not be for you. Give it a try ball differential solved the other, and than gluing and truing tires, painting sometime, I’ll bet you like it. the main gears . . . well, we just take new bodies and lining up some more The last sentence was supposed to spares to the races. fuel, those cars are ready to race and wrap it up, I suppose, but the thought just With the Super J's, one has a season on with very little expense involved. occurred to me that the cost factor of it, another two seasons, and my car has The 1/8 cars are more expensive to 1/12 vs. 1/8 is not that big a deal. If you three behind it, going on the fourth. race than 1/12? I wonder about that, I just flat can't afford to buy a 1/8 car, well, They have an almost perfect reliability really do. And if I have gotten you think then it is too expensive. But if you can, record, the only time any of those cars ing about it, why not give 1/8 racing a you can get at least as much on-track has failed to finish a race entered was the fair try, you might just like it . .. · racing time per dollar spent with a 1/8 first year I raced a Delta and I was car as with a 1/12. No, I didn’t sit down cleaning the car, including a rather and figure it all out right down to the important hanger-mounted clutch bear Choppers...... Continued from page 29 penny and the last lap. But I know pretty ing, with alcohol. The alky washed all the accurately what it takes to seriously lube out of the bearing, which, naturally campaign either a 1/12 or a 1/8 car, and enough, failed one day. That was my Novice: while the 1/8 car will cost more in a mistake, so an argument could be made 1. Tim Peters dollar-spent/racing time comparison that the cars have been 100% reliable, 2. Walter Throne for the first few races, as time goes on the the mechanic was the defective part of AMA NATS '80, Wilmington, Ohio. 1/8 car costs less and less to keep com the equation. 23 contestants. petitive, while the 1/12 car keeps nickel- Anyway, after the completion of the Expert: and-dimeing you constantly. '81 season, all the cars were stripped 1. Mike Mas Personal Experience Time Again: The down, cleaned real well and hung on the 2. Hubert Bitner DRT now races three Delta Super J’s, wall, minus engines (which were 3. Larry Jolly plus the Associated RC300, with the old wrapped in plastic bags and stored) and Intermediate: Murp in semi-retirement, but still the radio trays which were left on the 1. Doug Law brought out for friends to race occasion charging bench and the battery packs 2. Bill Cheng ally. Initially, those cars would cost quite given a slow-charge every month or so. 3. Bruce Buchanan a lot of money to get track-ready, espe Just a couple weeks ago I had time to Novice: cially the Delta cars, as they are easily the get ready for '82 and spent two evenings 1. Gary Saia most expensive flat-pan cars around. checking motors over, greasing diff 2. Rick Chin The RC300 has been pretty reliable, even units and just making sure that every 3. Scott Slayman though it has a slightly blemished record thing on the cars was ready. At the end AMA NATS ’81, Seguin, Texas. in that regard, spitting out a couple of of that time, the four cars were all bolted Est. 10-15 contestants. MAY 1982 WHEN CONTACTING ADVERTISERS, TELL 'EM MODEL BUILDER SENT YOU! 67 ASTRO TOPS COMPETITION 15000 / am most happy to report that test results show that our Astro systems deliver more power, for ASTRO 9 7 5X L 8 :ells 21 oz $8 9.95 a . a longer duration, than Leisure systems. The tests O cc 14000 were run using the same Cox Θ" x 4 " prop, and Q- the same 1.2 amp-hour GE batteries as supplied β X ASTRO )5ST 8 ce Ms 20 oz $6 4.95 with these systems Using the same battery pack to > eliminates any source o f error due to battery < 13000 variation. The results o f these tests clearly indi cc o A S T RC 0 5 X L 6 cells 17 02 . $6 9 .9 5 cate the superior performance o f the Astro X systems o υ ASTRO OFFERS THE ELECTRIC MODELER ε 12000 THE HIGHEST PERFORMANCE. THE HIGH Q. OC /Ί EST QUALITY, THE LONGEST WARRANTY, Leisure ( >5 6 cells 17 oz. $7 5.00 CC THE BEST SERVICE, AND THE o h- 11000 ______LOWEST PRICE. THAT JUST O ε NOTE: these are bench tests, you can sxpect ABOUT SAYS IT ALI____ flight times 50% longer because the prc»pel lor Bob Boucher unloads in flight. I 10000 L RSTR0 FLIGHT inc 13311 BEACH AVENUE VENICE, CA 90291 RUNNING TIME IN MINUTES 1.2 AMP HOUR NI-CD BATTERIES Send SASE lor catalog. Expert: turnout. Lots of new people were getting 78 NRCHA Nats maneuvers. But in the 1. Mike Mas involved in R/C helicoplters through fall of 77, some very important events 2. Hubert Bitner the grade level program. Novice maneu occurred that were to change the R/C 3. Tony Frackowiak vers were flown in an empty aircraft helicopter world. Intermediate: hangar. Not the safest thing as we look THE RULES 1. Robert Gorham back on it, but it kept the novices out of Schluter introduced the Heli-Boy: 2. Jay Willeams the wind. All novice maneuvers were Now high “ K” factor maneuvers became Novice: precision hovering. The experts flew easy to do and judges scored all of the 1. Jay Towbridge outside, the course consisting of preci aerobatic maneuvers high, with little Well, that’s quite a list. From it, I’d like sion hovering and some forward flight regard to the quality. This left anybody to review each contest a bit, especially maneuvers. with a “ non-aerobatic” helicopter out the earlier ones. Those were the ones I The year 1976 brought another excel of the running in the expert category. attended personally and could feel the lent turnout for the NRCHA Nats. Three Essentially you had to loop and roll to be “ pulse” . Unfortunately I haven’t been events now, novices still in the empty competitive. able to make the last three AM A Nats, so hangar. The experts flew a combination Now it wasn’t the Heli-Boy's prob my comments will be limited. of precision ground maneuvers and for lems; it was the first new generation The Nats of 1971-73 (I’m not sure if ward flight sequences. The last flights helicopter that could do most anything. there was a National Helicopter contest between Don Chapman and Ernie Huber The real problem was that the AMA in 73. ..) showed us the advancing tech rate as some of the most exciting com rules could not change quick enough to nology of R/C helicopters. During Nats petition ever seen in a helicopter con keep up with the advancing helicopter week there was always a helicopter test. Don was the ground expert, Ernie design. This may have been excusable demonstration at some time. Those of us the master of the high skies, and in the the first year, but here in 1982 the who were into helicopters, or thinking end Ernie nudged out Don by a few problem still exists! The rules are still the about it, always enjoyed these demos. I points. Overall competition was intense, same and maybe they’ll be changed one distinctly remember Horace Hagan Dut the competitors were friendly. Dur of these years... demonstrating his big Schluter Cobra. It ing rounds you could sit and discuss THE ÖRGANIZATION was always a very impressive machine. problems, solutions, etc. in an atmos Another killing blow came with the The years 1973-1974 brought the phere similar to the “ uncontests” and news that RCM was dropping sponsor formation of the National Radio Con “ fly ins" of recent giant scale meets. ship of the NRCHA. Too few members? trolled Helicopter Association (NRCHA), The 1977 NRCHA Nats included a new Hardly. The association was getting so sponsored by RCM,and the first NRCHA “ judgeless" format. All entrants initially large that RCM had to spend too much Nats. If you’ll remember, the NRCHA flew one round to determine in which money on time and secretaries to keep had a progressive grade level program class they would fly. The highest 15 up with the paperwork. (At least that's for proficiency, along with a periodic scores were to be in Masters, the rest in what we heard, and I believe it.) newsletter listing the number of pilots in Sportsman. However, you could move What could have been done to rectify the various grade levels, and their names from Sportsman up to Masters if you the problem is not too much of a and addresses. wanted to, but not back down. There concern now. The fact is that it happened I believe the '74 NRCHA Nats brought was a sizable prize ($50 if I remember) to so fast that no one else picked up where about 30 entries, and Dave Cray won the winner of this initial round, to deter RCM left off, and the NRCHA died. Expert. The NRCHA did not follow the any would-be sandbaggers (John Simone This didn’t affect the experts so much AMA rules, but designed the maneuvers won it). All maneuvers were judged ‘yes' as it did the beginners in the hobby/ as it pleased. This was always a sore spot or ’no’, or by time and tasks. Forsure, no sport. (I still prefer hobby.) No more between the NRCHA and AMA, and it one argued about the results of this grade level pins, no more outside moti came from two different philosophies of contest. On the other hand, the 77 vation to continue to improve flying what a contest should be. contest featured all precision hovering skills, etc. The NRCHA made contest Basically, Bill Curtis and a few others maneuvers, and it seemed apparent that participation a part of its grade level drew up the rules and organized the there needed to be some type of judg- program by requiring a certain number 1974-78 NRCHA Nats. In 1975. the able airwork. of contest points for each grade level. NRCHA Greenville Nats had a beautiful These changes were included in the This in turn motivated people to attend 68 WHEN CONTACTING ADVERTISERS, TELL 'EM MODEL BUILDER SENT YOU! MODEL BUILDER Authentic 1Π Scale B Y R O N A-4 Skyhawk! 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Box 279 Ida Grove, Iowa 51 44 5 Send $2.00 for complete Ph: 71 2-3 64-3 16 5 A-4 Information Pack contests. and joys. by Dwayne Stevens, and held at Colum Anyway, some people did try to THE MACHINE bus, Ohio. Actually, the ’78 contest was establish new organizations, but they Those who did learn to fly the helicop put on after the demise of the NRCHA, never really caught on. To understand ter soon discovered that it took a little but that’s a minor point. What is really that, you’ve got to look at the individual “ something extra” . A little more practice important is that the 78 contest was the helicopter pilot. to maintain proficiency, a little more best helicopter contest ever put on. THE PILOT care in daily maintenance. The helicop Some lessons had been learned from I believe it was Harry Reasöner who ter is not the easiest machine to compete the ’77 contest, and now aerobatic Heli- once made a comparison of airplane with, either. It is very sensitive to the Boys were present in numbers. To pilots vs. helicopter pilots. It went some atmospheric conditions and tempera accommodate each of these factors, a thing like this: ture. Add tothisthecautiouspilot,and it new Masters event consisted of precision The airplane pilot is a bright eyed becomes even more difficult to get the scale maneuvers, with ground work and extrovert, while the helicopter pilot is a two together in a contest. air work included the time. The Expert quiet, cautious introvert. The helicopter One of the reasons the early NRCHA event was run by AMAexpert guidelines. pilot knows at any moment that some contests were so popular was that there This allowed the scale type helicopters thing is about to go wrong. were prizes to be won. Not five or ten to be competitive with the precision In the beginning, the NRCHA did not dollars either. I mean helicopter kits, event in Masters, yet the loop-it-roll-it take off like wildfire. RCM ran years and radios, engines, starters, etc. If someone pilots had their Expert class too. One months of helicopter articles and, why dangles a new helicopter kit in front of pilot could enter both classes, and fly even Don Dewey was interested in the some "would be” contestants, they'll separate ships in each event. The best helicopter! It was because of Don’s feel a little more like entering a contest, overall pilot was the average of Masters persistence that the NRCHA began to right? Most of the credit for this goes to and Expert scores. (The Expert class was grow. In the years following, it grew so Bill Curtis. He was the one who begged also called “ Hot Dog” , and the contes much it turned into a monster, with the and pleaded for donated prizes. He tants didn't let anyone down!) before-mentioned consequences. even laid out quite a bit of his own With 61 entries and 175 helicopters None of the other organizers really money to round out the "incentives” . present, the 78 contest was quite a had the means or the money (i.e. a Add to this a good contest schedule, and weekend. Pilots from all over the coun national magazine) to support the initial the turnouts were very impressive. try attended. This was the start of the drive. In other words, the helicopter Some of the airplane contestants "prestigious event" talked of earlier. pilot is a cautious individual, and his reading may be asking, “ Isn’t it enough It was about that time the “ fly-in” type machine requires concentration to fly. of a reward just to win or place in the of meet was starting to gain popularity. He does not want to be embarrassed in contest without a sizable prize?” The This factor, along with the work of public because he can't fly right off the answer to that is‘no’, not in the state that putting on a yearly contest: Organizing bat like an expert. What too few heli helicopter contests were/are in. Before judges, awards, and necessary field pilots realize is that everyone else is in you can do that you have to establish a equipment, lead to a 1979 fly-in at the same boat.. . It simply takes a lot of prestigious event. The NRCHA contests Columbus. So just when the R/C heli persuasion to get him involved with were starting to get there. copter competition was finally getting others who have the same frustrations The 1978 NRCHA contest was hosted established, it lost its foothold. MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 69 quickly, and re-establish the national contests and participation we once enjoyed. By now, some of you are filled with viewpoints one way or the other. I’d appreciate hearing your comments. If you would like a reply, send a S.A.S.E. to me at: 388 Roswell, Long Beach, CA 90814. For the next month or two . . . if you haven't purchased a High Point Balancer, get one. We’ll be using it quite a bit in the upcoming articles. See you then. · Hannan...... Continued from page 54 of the famous old Frank Zaic paper-clip beam scale. The plan-set consists of detailed and well-illustrated construction and operat INTRODUCING ing instructions, plus stick-on templates. Materials and tools required, but not COVER ITE’S furnished, are apt to be found in the average model builder’s shop, or avail able at low cost. AMAZING The plan-set is $3.50 postpaid from: Micro-Air, P.O. Box 1129, Richland, WA 99352. AND MORE PLANS 1 A series of model plans such as a mini AIIG FIUSK twin pusher, Embryo Endurance type, A RIP PROOF IRON-ON THAT ADHERES WITH BALSARITE! biplane R.O.G., a Bostonian and various Peanuts are offered by David Aronstein, PATENT PENDING 50 Pasture Lane, Poughkeepsie, N.Y. 40%-70% LIGHTER! ■ 700% TOUGHER! ■ REVERSIBLE! ■ PRINTABLE! 12603. We were particularly intrigued by a tiny (8" span) Farman Mosquito. A COVERITE, 420 BABYLON RD.. HORSHAM. PA 19044, U.S.A. stamped return envelope will bring a complete list. Please tell ’em Model This leaves the AMA contests from chance to plan their schedules accord Builder sent you! 1979-81. Entry was poor, average, and ingly. Some good ads and general en LONG-LIVED PRODUCT poor, respectively. Personally I'm sur couragement should help turnouts One thing that seems to have been prised that entry was that low. Several considerably. around almost as long as the model factors probably lead to the low turnout. 5. We need dedicated contest direc building hobby is Ambroid glue. But I’ll touch on those in the upcoming tors to set the events up and organize until reading the February 25,1911 issue paragraphs. In the end a vicious circle the judging . . . Dwayne Stevens has of AERO, we hadn’t realized just how results. No one cares to come because been doing this job at the last several old the product really was: “ The Am nobody comes anyway.. . AMA Nats. Anybody else out there? beroid (note spelling w.c.h.) Company I've given a brief history. How about 6. The pilots who fly helicopters now exhibits a glue of the same name. This some answers? These suggestions basi must actively encourage their peers to cement which is unaffected by boiling cally relate to Nats competition. We only go with them and enter contests. Not so water, or any liquid or acid in common need (or want) one or two national much in a killing efforttowin.butalsoas use, has a variety of uses about the events a year. But they can also apply a base for the exchange of ideas and aeroplane. It can repair a tear in the wing toward establishing more regional information. A contest must be a fun and fabric and make it stronger than before. events too. enjoyable weekend! That it has been used for years in 1. Set up rules that can be changed 7. In addition to #6, how about some repairing leaks in canoes and rubber quickly to keep pace with the advance seminars in the evenings of the contest? goods, establishes its moisture-proof ment of the helicopters and pilots. I’m How to install radios, set up machines, ualities beyond question. When it still waiting to see the end of the three- track and balance, trouble-shoot prob ries, it makes a hard waterproof sub minute routine in Expert, and only lems, etc. Let’s let the experts give some stance, which proves very effective in allowing a set number of maneuvers to real live tips to those who want help. repairing leaks in gasoline or oil lines be performed from the Expert freestyle If pilots don’t care about contests, and in tanks.” sequence. Some of the "K” factors need nothing will be done. And helicopter FIRST SOARING AWARD to be modified too. contests never will become prominent The first recipient of the Soaring 2. National contests should be set up events, which will hurt the helicopter Society of America Junior award was with a “ Masters” event to allow smooth pilots themselves in the long run. A Aaron Markos, of Deerfield, Illinois, ness and precision as well as aerobatics. contest can always be used as an incen according to Executive Director John (“ Scale” , as it exists now in AMA compe tive to work for, a reason to push on .. . Dezzutti. Ten-year old Aaron is son of tition is not the answer, either.) no matter if you enter for the competi well-known modeler Chuck Markos, 3. In order to get contestant draw tion or for the fellowship. and he received the $100 cash prize for again, significant prizes will have to be In short, sometimes I think we’re in winning the FIA A/1 class towline glider given to re-establish a "prestigious such a deep hole now that it will be very event during the 1981 Nationals Cham event” that does not need large prizes. difficult to pull ourselves out. Then pionship. 4. We need national advertising well again, concentrated effort in the right NASA AWARD TO BUILDER ahead of the contests to give people a places could change things around fairly According to Paul Mcllrath, of Cedar 70 WHEN CONTACTING ADVERTISERS. TELL ’EM MOOEE BUILDER SENT YOU! MODEL BUILDER m å » M i r F IMAGINATION A FOOTPRINT? — NO! IMAGINATION PUT TO GOOD USE? — YES! The imaginative ‘ Back Plate Design on the HB.25 gives you the choice of how to mount the engine. RADIAL or BEAM MOUNT, whichever works best! TOP PERFORMANCE ON F.A.I. FUEL! This is just one of the things that makes the HB.25 The HB.25 features Double Ball Bearings, more than just another face in the crowd. Va x28 Shaft, Perry Carb and it's complete with a Muffler of its own. Write for FREE COLOR CATALOG O ther HB Engines with the Integral Radial and Beam Mount feature are: HB.20. HB.15 and the HB.12, they HB-ENGINES also come complete with Muftiers. Made m W Germany BAVARIAN PRECISION PRODUCTS CO. · PO Box 6. Dept C.NewC; i Connecticut 06640 Rapids, Iowa, Professor Donald Gurnett, take-off, tow and land with. We’ll supply who recently received NASA’s Excep the paper so no super-light ringers can EMS SR-1 tional Scientific Achievement medal for be used. You can do a lot with this one SERVO his contributions to the Voyager Space using qualifying heats. Thirty seconds REVERSER craft project, was a Junior Nationals times 30 sheets, or 60 seconds times 20 sheets. Price $10.95 model Champion during the early 1950s. (Include $1.00 Look where a hobby can lead! 5. Lindberg: Take off before a line on per order, for shipping and ONE DESIGN CONTEST the runway, land after another line or handling.) between a second and third line. Don Ross, of Jew Jersey, proposes an Plugs into your system between the Receiver outdoor event geared to the fun-flyer, 6. Pennyload: Seconds times number of pennies your model can carry. and Servo and reverses the direction of that and the "almost over the hill” modelers: servo with relation to the Transmitter Stick “ No pressure, no club officers, no 7. Regular Duration: One hand- motion. Available for all popular positive or stringent rules... just get together for a launched flight and one R.O.G. Add the negative pulse systems w ith connectors in meet built around some central theme times to find winner. stalled. An extremely handy device when and, maybe, start something that we can "What we need is an enthusiastic installing your system in a new airplane. repeat from time to time.” bunch of people who want to get to Master Charge and VISA Don wants to eliminate special high- gether for a day and go back in time to Dealer Inquiries Invited performance models by having every the days of yesteryear when things were ELECTRONIC MODEL SYSTEMS one build the same design, such as the a little less complicated . . . ” Modelers 6175 Palo Alto Dr., Anaheim, CA 92807 Pacific Ace. Possible theme events are as in the New Jersey/New York area who follows: may care to participate, should send a the granite rotunda like silent thoughts. 1. Thompson Trophy: All launch at stamped return envelope for more Then it was a graceful glide to the floor once, Flying Aces style, after a one- details to: Donald H. Ross, 38 Churchill or a crash landing — or perhaps, if the minute warning to get models wound. Road, Cresskill, N.J. 07626. altitude was impressive, a sudden tail- Last man down wins. MEDIA MENTIONS MODELS spin into the tricky recesses of the upper 2. Random Time: Some method Ed Whitten forwarded a clipping from columns and cornices.” .. . "Set up at (sealed envelope, dice rolled, etc.) of the New York Times highlighting a small tables, often with lunches and choosing a random time between 30 and recent indoor meet. Featured were thermos bottles, the hobbyists adjusted 90 seconds is set up. No one knows the three photos, and an article by reporter their planes after crashes, muttering on time before he flies. Nearest to secret Laurie Johnston, from which we ex occasion." Hmmmmm. time wins. cerpted these comments: "Watched by PEANUT PROLIFERATION 3. One Minute: Nearest to60seconds, the likes of Euripides, Demosthenes and While Peanut Scale continues to be but under 60 seconds, wins. Can be Sophocles in marble — as well as a enthusiastically supported in several R.O.G. or hand-launched. portrait pantheon of Columbia Univer parts of the world, the search continues 4. Toilet Paper Tow: This must be sity's presidents — men at play flew their for universally acceptable rules. Butch R.O.G. and can be tricky and a lot of fun. tiny airplanes yesterday under the 105- Hadland’s proposed F.A.I. World Peanut Multiply your time in seconds by the foot dome of Low Memorial Library.” regulations have been tested and favor number of toilet paper sheets you can . . . “ The fragile craft floated and circled ably received in England, but USA MAY 1982 WHEN CONTACTING ADVERTISERS, TELL 'EM MODEL BUILDER SENT YOU! 71 r ~ Λ r Λ SPORT SERIES IRVINE ENGINES COMPETITION R/C ENGINES FROM ENGLAND These economical engines are set up to run on FAI or low nitro fuel. They are schnuerle ported and have dykes ringed pistons, dual ball bearing crankshafts and heavy duty connecting rods with bronze bearings.The multi-speed carburetor is made of a NEW polyester based mate- rial.There are 8 airplane, 3 marine, & 1 helicopter/ car version.Parts are available. These engines are available at your local hobby shop at reason able prices. FOB MOBE INFORMATION WHITE OB CALL TODAY! MIDWEST MODEL SUPPLY CO. BOX S18B. ROMEOViLLE. ILL. 60441 312-759-1955 MW11812 “Serving dealers over 40 years” J response has been reserved with the 4. Jacques Delcroix, Trempik SK 1 2 inches. Epoxy a 1/2 x 6 inch dowel into west coast preferring the simpler 5. Bernard Boutillier, Fike E center of block at right angles to 5-1/2 Mooney “ ranking” system of judging, An international flavor was added by the inch side. Chuck dowel into drill press, while the New England modelers stand entry of Alfred Klinck, of Germany, who set on low speed and sand to five inch by the original Flying Aces concept. entered a Demoiselle, placing 12th, and dia. with one-inch radius on edge. Coat Active New York Peanutist Bob Cle a Farman Moustique from the U.S.A., mold with styromate and sand smooth. I mens feels that rise-off-ground starts which was proxy-flown to 10th place by used three layers of four oz. glass cloth should be optional, with allowance Michel Frugoli. wrapped continuously around the peri made for retractable landing gear OUT OF THE BLUE phery of the mold. Lap glass down at equipped aircraft to have their wheels in One of our favorite columns is written least one inch from outside edge. Sand a simulated “ up” position. Among Bob’s by "Updraught” in the Australian Air and fill all pits in fenders. Cut fenders to other thoughts: “ Do we really want to borne modeling magazine, and we cover 120° of wheel arc, and to be 3/4 make Peanut under whatever rules, an present this somewhat condensed inch deep at center. Fender braces were F.A.I. event?" sample of its humor: "MORE THAN made from .060 x 1/4 inch brass strip and And, from Australia, Airborne Editor IUST A PRETTY FACE." bent to fit inside of fenders. Braces are at Merv Buckmaster opines that if it be "It seems ever more fashionable to 90° to each other. Use 2-56 screws on comes an official World Championship feature a comely girl embracing some each side of fender to hold it to braces. class " . . . it won't be Peanut anymore!’’ one's model aeroplane on the covers of Solder (Sta-brite) braces to 3/16 wheel Doc Martin, genial promoter of the our magazines. It makes them look collars. This will hold both the wheel and West Baden Peanut Gran Prix has an much more attractive on the news fender in position. nounced that this year’s contest rules stands, I suppose, and in fact, if some of RADIO INSTALLATION will offer a 10-point bonus for R.O.G. in the aeroplane owners were to be If you are using a direct drive .90 or a addition to the unlimited flights, featured clutching their creations, the Fox twin, locate radio gear in bottom multiple entries and proxy-flying that shop proprietors would likely be moved wing saddle opening. If you are using a has contributed so much to the enjoy to display the publications in question .90 on a drive unit or a Quadra, provide a ment of past events. Plan to enter! face down. bolt,ed type hatch in the bottom of the MEANWHILE IN FRANCE "Only a tantalizing glimpse is ever fuselage between bulkheads No. 8 and The National Concours at Orleans given of these females, although they No. 9 for radio gear. produced an interesting response in are invariably very much more interest I used Futaba S-15 servos throughout. Peanuts. Contestants could elect to ing than the models to which they are Two servos were used on elevator; one enter either the traditional rules "Caca- supposed to add interest. servo each for ailerons and rudder has huete” division, or the experimental, "Sadly, the details supplied inside the proven adequate. Use a 1200 mil airborn much more static-scale oriented “ Ma- magazines are always sketchy: 'Lovely battery pack as the current drain is fairly quette” category. Perhaps it is too soon Gladys Bogthorpe, a secretary from high, especially if you are doing any to draw any sweeping conclusions, but Tempe, is seen on our cover with Cedric aerobatics. there were only five entries in “ Ma- Cloddley’s latest pattern design, a quette” , contrasted to about twenty-five 'Munneysucker' powered by a Wallet- FLYING THE MODEL in “ regular” Peanut. This would seem a buster 67 . . . ", followed by a few more The balance point of the model is four direct parallel to the entry distribution in boring details of the dreary aeroplane, inches aft of the leading edge of the US AMA R/C Scale, where "Standoff” when most of the readers, I am sure, bottom wing, measured at the fuselage draws massive numbers of models, while would far prefer details concerning the side. For trial flights, move the balance “ Museum Scale” attracts so few. Why? young woman." · forward 1/2 to 3/4 inch. The propeller I ORLEANS RESULTS found to be the best for either drive unit Maquette: or Quadra was an 18 x 10. I used a dual 1. Alain Parmentier, 1911 Cessna rate radio to fly the model. I set the Jungman...... Continued from page 19 2. Claude Weber, Nieuport 62 control surfaces as follows; High rate for 3. Emmanuel Fillon, Hawker Fury aerobatics, Low rate for normal flying. Cacahuete: (note multiple entries) ator openings. Fill all pinholesand voids. Elevator up-dn Hi rate 1-1/2”, Low ratel" 1. Andre Meritte, Poulin JP 30 Finish sand outside of cowl completely Aileronsup-dn Hi rate 1/2", Low rate3/8" 2. Andre Meritte, PB 6 Racek before you dig out the foam. Rudder left-right, 2 inches both ways. 3. jacques Delcroix, Pottier 100 Fenders: Make a block 5-1/2 x 5-1/2 x The plane flies very smoothly and is a 72 WHEN CONTACTING ADVERTISERS. TELL EM MODEL BUILDER SENT YOU! MODEL BUILDER slow and easy flying machine. You do need some coordinated rudder input with ailerons when making turns. Take offs are a piece of cake, just a little right rudder and it tracks straight down the runway. Rolls are smooth and axial. Point rolls and knife edge flight are very KWIK good, crisp and sharp, no falling off of the points. Wheels-on landings seem to be the best and easiest to do. Reduce FILL power to about 1/3 during landing approach, reduce power slowly when F U E L P U M P plane is in line with runway, keep some ANEW power on, don't chop the throttle until PUMPS IN i GENERATION the wheels are on the runway. This plane AND OUT ONLY OF TOUGH, slows down very rapidly when you cut DU-BRO FUEL the throttle. For dead stick landings, put the nose down, and keep the speed up. HAND $1 0 95 PUMPS- SONICALLY This plane has a lot of drag and sink rate OPERATED SEALED TO PREVENTj is fairly high. · *★ LEAKING CAT. NO 191- FOR GLO-FUELS Φ- COMPLETE Counter...... Continued from page 8 FUELING SYSTEM INCLUDES CAP ★ ★ ★ K W I K - F I L L FITTINGS, FUEL Sterling Models has just released its TUBING AND new “ Penny Pincher” series. Only $1.98 FILTER. „ HIGH will buy you either a Hellcat, Mustang, Piper Cub, Cessna 180, Sabre Jet, or a T VOLUME 38-A Thunderbird balsa wood kit. Just O N LY \ I FLOW add your two cents worth (two pennies Ι Ί 1 95 in the nose for weight and balance), no F U E L P U M P CAT NO.250 glue required, and go fly! Or, use them for display as they are in full color if you prefer. The new Piper Vagabond, latest DU-BRO 20" FLEX-CABLE in the “ Kid Series,” sports a 33-inch MOTOR CONTROL wingspan. Designed to be flown with Provides the ultimate the rubber motor and prop supplied, or in control cable with an .049 engine for control line, or assembly Highly by utilizing the miniature R/C systems flexible, free running and adjustable at control horn available today, up to three channels $ 1 .4 9 may be used. N o. 1 6 5 ...... Sterling Models emphasizes that, although the "Real Sporty” stand-off THE ORIGINAL DU-BRO KWIK-LINK« scale model meets all the specifications Control yoke assembly for any control linkage. Allows for 1/4-midget racing, with a mild engine it can be used as a real sport flyer. easy removal for on-the-field adjustments. 4” rod and This 40-5/16 inch wingspan model split coupling sleeve. No. io 6 ...... 49c comes complete with vacuum formed Zaiumuj canopy, cowl, and wheel pants. For a catalog containing the entire line of 12" KW IK-LINK Includes 12” Rod and Kwik-Link No. 108 49c controline, R/C and scale kits, boat model kits and accessories, send $1 to: NICKEL p l a t e d SOLDER LINKS Sterling Models Building, 3620 "G ” St., MAKES A STRONG. ATTRACTIVE AND EASY TO Philadelphia, PA 19134. SOLDER CONNECTOR FOR SERVO OR HORN ★ ★ ★ NICKEL PLATED FOR A BRIGHT AND SHINY FINISH - Dumas Products has released the Hot A NICE IMPROVEMENT OVER TIN PLATING WHICH WILL EVENTUALLY OXIDIZE AND CORRODE Shot 45 Tunnel hull kit as completely PACKAGE INCLUDES 2 SOLDER LINKS AND described in Jerry Dunlap’s column 2 LINK GUARDS prior to production of kit. N o. 112 (2 ea ) 69c ★ ★ ★ Now available from Skylark Flight are DU-BRO NYLON HINGES full color postcards of general aviation, Easy installation. Embossed military, and special interest aircraft. letters and holes make a This new classic series has 15 full color better gluing surface. 5/8” x 1-118” cards, ranging from the classic Piper J-3, open. Hinge pin locked in place. P-51 Mustang, Spitfire, and Staggerwing No. 116 ( 6 each) $1.10 / MINI \ No. 118 $1.00 Beech through a range of Cessna air No. 117 (15 each) $2.49 \ SIZE / No. 119 $195 craft. You can get the complete set of 15 colorful postcards for $3.75. For more information, send a SASE to: Skylark Flight, 1711 Skylark Lane, Newport Beach, CA 92660. DU-BRO PRODUCTS’ ★ ★ ★ INCORPORATED 480 Bonner Road Wauconda. Illinois 60064 U.S.A. As mentioned in last month's Over MAY 1982 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! 73 motor mounts available from Circus Hobbies. The mounts, available in sev eral sizes, come with cap screws, wash ers, blind nuts, and alien wrench for mounting. The mounts feature a "cap SIZES! tive plate” engine retention concept Competition-Proven that allows the mounting of several different brands of engines without drilling and tapping the mountings OCTURA holes, although drilling and tapping can be done, if desired. See your dealer or contact Circus Hobbies for more infor X-SERIES mation on these and the complete accessory line from: Circus Hobbies, 3132 S. Highland Dr., Las Vegas, NV PROPELLERS 89109; or call (702) 731-6472. ★ ★ ★ Getting "shot down” or "glitched” at X-tra Speed!...X-tra Performance! your R/C flying site? Use of the Airtron- ics Frequency Scanner to check for FOR PERFORMANCE YOU’LL BE PROUD O F... “ clean air” may help save a model These, as all Octura Propellers, meet the most exact aircraft. Designed for covering the seven ing requirements. Available now in beryllium copper. frequency spots on 72-75mhz, the unit Fit 3/16" shaft. Check your local progressive hobby can be set to scan all seven spots, or be shop. set to monitor any of the seven spots X440/3 RECOMMENDED APPLICATIONS individually. If a signal is present, a very 3.5 OUTRIGGER X445 audible tone will be heard, and the X447 7.5 OUTBOARD L.E.D. on the frequency will remain 75 DEEP VEE ■ X450 X455 lighted as long as the signal is present. 7 5 OUTRIGGER X455/3 65 SCALE HYDRO The unit may be powered by eitner four /.D UUI nlubtn χ457 65 DEEP VEE AA alkaline cells or AA sized NiCd cells X460 (not furnished), or an external 12-volt fOCTURAl X462 • 65 OUTRIGGER source may be used. Priced at $149.95, A «1 00 tor *X467 90 DEEP VEE Californians add 6% sales tax. Interested f Ä and price Uuwitsj 3* indicates 3-Bladed Propeller individuals or clubs should contact cata list to: Airtronics direct. Airtronics, 12160 “ SINCE 195499 Woodruff Ave., Downey, CA 90241; or OCTURA MODELS, INC . 7351 N. Hamlin Ave · Skokie, IL 60076 call (213) 862-6583. ★ ★ ★ Micro-Air Precision Products has The Counter, Sig Mfg. has released more ers, keeps the truck level over all kinds announced its first item, the Micro-Air details on its RISER, 2-meter class sail of terrain. A sealed radio compartment Wooden Bean Plan Set. The plan set plane, designed by Bill Fleming. Span protects your 2-channel radio system, includes theory of operation, a com ning 78 inches and priced at $24.95, this while a sealed aluminum gear case plete bill of materials, construction kit, very complete with all hardware, covers the gears. A servo saver protects notes and photos of the completed nylon tubing pushrods, printed fuselage your steering servo, and a switch con scale. All templates are included, too. sides and tail parts in the usual Sig trols two forward and two reverse Capable of weighing from a few thou manner, can also be flow n with an speeds. A highly detailed body, wide sandths of an ounce up to 16 ounces, it optionally available power pod kit. The traction, blocK pattern tire treads with can be constructed in one evening and Riser, utilizing either high-start or fancy rims, and realistic decals for trim should satisfy the needs of most free power pod assist, was designed with the make it look like a pick-up should! See flight and indoor modelers. Price is beginner in mind. your local hobby shop, or contact: $3.50, postpaid, from: Micro-Air Pre Sig has just released its improved Model Rectifier Corp., 2500 Wood- cision Products, P.O. Box 1129, Richland, Mark II KOMANDER. New features bridge Ave., Edison, NJ 08817. WA 99352. include redesigned fuselage structure, ★ ★ ★ ★ ★ ★ new 36-page photo-instruction book, Dick Hanson Models, manufacturers Davey Systems Corporation has re new wing center section for better fit of custom built Tiporares and other leased its new Sailplane Launch Line and appearance, and new separate fuel pattern aircraft, has been producing a Retreval System just in time for the tank compartment. Sig has updated an very successful “ Flying Hippo 825.’’ spring flying season. The result of three old favorite without changing the well Now, the new 750sq. in. "Tipo Hippo” is years of testing and refinement, it can be proven aerodynamics of this outstand getting around and doing extremely used with existing launch systems and ing aileron trainer. As with all Sig kits, it well at local, regional, and national batteries. No more chasing parachutes, contains Sig quality balsa and ply contests. Included with your custom and an increased launch frequency of throughout, pre-cut foam wing cores, all built "Tipo Hippo” is a "free” Hippo Tee up to one a minute is claimed. Features hardware, nylon fittings, wire parts and shirt! Also available separately for $8 include welded frame, ball-bearing aluminum motor mounts. each, plus UPS charges, in the following swivel, hand-controlled switch, battery For .40 to .50 engines, a good kit sizes: Small, Medium, Large, and of cable and clips, 12-volt motor capable of design has been made better. Sig Mfg. course, Hippo. For your pattern aircraft operating on six volts, and 1,000 feet of Co., Montezuma, IA 50171. needs, write or call: Dick Hanson Mod braided line. The introductory price is ★ ★ ★ els, 5269 Lucky Clover Lane, Murray, UT $225. Contact: Davey Systems Corpora MRC’s newest off-road R/C Vehicle is 84107; (801) 261-1402. tion, One Wood Lane, Malvern, PA the 1/10 scale Ford Ranger Pick-up. Run ★ ★ ★ 19355; or call (215) 644-0692. it on smooth pavement or through mud, water, or sand. A tough aluminum and In designing or building a new model, fiberglass chassis coupled with a stiffly R/C or control line, modelers should sprung four-wheel independent sus not overlook the line of precision pension system with four shock absorb machined,cast aluminum I. M. Products 74 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER New Quadra Power Package From More than a year of factory applications and comparisons have shown this versatile power package to be one of the most effective methods of powering today's large R/C aircraft. From the standpoint of weight, economy, reliability, ease of installation and per formance. we have yet to discover its equal. In fact, we use this very same system exclusively In our own factory Pitts. Christen Eagles. Cap 21s and prototypes. It utilizes the well known Quadra engine, one of the finest tw o cycle gas engines made for model aircraft use. A light, yet rugged glass/nylon engine mount provides a fast and positive means of securing engine to firewall. It is even pre-driiled and adjusted to automatically position the Quadra engine beneath our Pitts and Eagle cowling. A special adapter bolt for securing prop and spinner to engine is also included. Other items in the package include one 18x8 maple prop, complete 3V4" spinner assembly, 9 /6 4 " ball driver, Loctite. and all required 1 fasteners. NOTE: Suitable Qua dra mulflors include those manufactured by Talone, B & B Spe cialties and Slimline. SPECIFICATIONS: L e n g th ...... 8 " from firewall mounting to spinner backplate. Adjusts to 8 'h " W id th ...... 5 V 4 " T o ta l w e ig h t ...... 4 Ά lbs. Engine displacement...... 2 cu . in. RPM on 18x8 p ro p ...... Approx. 7700 W ith Less engine engine Retail price $ 2 1 6 .0 0 $56 50 Factory price 184.03 48 .0 3 Byron Originals', P.0. Box 279 (plus $2.65 (plus $1.65 Ida Grove, la. 51445, 712-364-3165 shipping) shipping) No. 8781 R/C VELIE MONOCOUPE 59-50 Light-weight 1/4-scale for belt reduction electric power, 90" span. Bob Boucher. No. 12781 GRUMMAN AG-CAT $12.00 Mammoth 2-1/2" R/C scale biplane, for No. 5781 UPTON'S BABY ACE $10.00 2" engines. Span 7.5'. Floyd Fitzgerald. No. 6771 GIPSY MOTH $12.00 Exact R/C quarter-scale model of popular Exact quarter-scale (7-1/2 ft. span) R/C homebuilt parasol, 78" span. Bob Upton. No. 2811 LIBERTY SPORT $17.75 of famous H D. bipe. By Bill Northrop. Mammoth 3-1/4" scale biplane for belt- No. 91074 O.T. BUHL PUP S6.00 No. 6811 CURTISS P-40 $10.00 drive 60 on up. Four sheets. Roger Stera Semi-scale 8 ft. span model published in Exact-outline giant/sport R/C scale for 1936 MAN. Redrawn by Phil Bernhardt. .90 power, 80" span. By Art Johnson. No. 6781 LOCKHEED P 38L $12.00 No. 11811 WACO TAPERWING $17.95 R/C Sport Scale, balsa and ply const., a No. 6791 CAP 20L-200 510.00 Sensational 1 /4-scale R/C model of Bob trophy winner, big, 8' span. Art Johnson. Fully aerobatic large-scale low winger for Lyjack's Waco. 2.5-3.5 eng. Larry Scott. 2 cu. in. or red.-drive engines. Jeff tracy. No. 3811 DORMOY "BATHTUB" $15.00 No. 579-0.T.TAYLORCRAFT $12.00 No. 3801 LES LONG'S "WIMPY" $10.00 Unusual 1/3-scale R/C (8' span) early ul Quarter-scale in 1941! Famous 9-foot de Lightvwight R/C 1/4-scale homebuilt for tra-light homebuilt, .40-.60. Hank lltzsch. sign kitted by Miniature Aircraft Corp. electric or gal. 94" span. By Le Gray. No. 10811 HEATH PARASOL $7.50 No. 10771 KRIER KRAFT SI0.00 No. 7812 BIG PROP CHARTS $1.50 Lightweight quarter-scale for .60 power. Large R/C sport scale model of famous Charts for determining best engine and Span 94", two-piece wing. Bob Kitson. aerobatic bipe, 70” span. By Ray Nugen. prop sizes for the "biggies". John Burns. No. 1176 O.T. LUSCOMBE ”50'' S5.50 Scale ship from Dec '40 F A. Suites O.T SEE PAGE 100 FOR ORDERING INSTRUCTIONS. or R /C Sport Scale. 90". Tom Mountjoy. COMPLETE MB PLANS LIST SENT WITH EACH ORDER. MAY 1982 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! 75 radio compartment was located towards R/C Boats . . . . Continued from page 41 the rear of the hull. The photos show its location. INSTALLING THE ENGINE tape can be used to hold the deck and I would recommend the use of either hull pieces together. Run a strip of a Prather .21 outboard motor mount or a masking tape along the seam to keep Teague Marine mount. They are the any resin from working through the same mount and sell for the same price. seam. Having stuffed the glass cloth This type of motor mount will allow attached to the deck down along the adjustment of the engine both higher inside of the hull, the resin can be and lower as well as angle in or away applied to the material on the sides of from the transom. The optimum engine the hull. Be sure to work the resin into height appeared to be a setting that had the cloth so it will bond the cloth to the the centerline of the prop 1/2-inch hull. The seam along the transom of the below the vee bottom. The engine was boat can be done rather easily since angled slightly away from the transom. there is plenty of room for working with The adjustable motor mounts really are the glass cloth. slick when it comes to experimenting The other method uses the same with varying engine height and angle material, only the way of doing the settings. When it comes to telling about inside seam is different. Using this installing the outboard on this type of method, the two pieces are taped to boat, there really isn't a whole lot to tell. gether first. The boat is laid on a side and If the old style K&B .21 Outboard is the piece of fiberglass cloth is resined in used, it would be a good idea to make an place about half way along the seam. additional rudder/skeg to attach to the After this portion has set, the remaining cavitation plate. With the engine material is worked into place and resin mounted in the suggested location, the applied to the glass cloth and worked boat would slide badly in the turns with into the material. This process is re the stock lower unit. This happened peated for the other side and the tran because there wasn’t a sufficient som. To work the resin down along the amount of the engine below the bottom front of the boat, try using a stiff epoxy of the hull to prevent the boat from brush like those available from Sig. The sliding in the turns. To correct this length of the brush can be extended by situation, I used a piece of 1/16 inch shoving a piece of a stick into the brass three inches long by one inch handle. Did you know you can wash out wide. One end was bent at a right angle that little brush with soap and water after so a 1/2 inch of the strip could be bolted you're done working with the resin? to the top side of the cavitation plate. Well, you can if you do it before the With the addition of this device, the boat resin sets hard. For the person without would really hold down on the water. It much experience with fiberglass, the did cut down the top end speed a little. I first method might be easier, since it think it would be possible to reduce the eliminates having to work with the glass width of this added-on rudder/skeg and strip unattached to the hull. The impor still retain the gains made in improved tant thing is the working of the resin into cornering. Reducing the width may the glass cloth to assure proper adhe lessen the amount of speed loss due to sion to the deck and hull parts. the additional drag caused by the longer INSTALLING THE RADIO SYSTEM rudder/skeg. Be certain to sharpen the There are a couple of options avail edges of any add-on type of rudder/ able regarding installing the radio sys skeg. tem. The photos in this article show how RUNNING THE to build the radio box right into the boat. WARDCRAFT OFFSHORE 33 The engine stringers make the sides,and If setting a few records, which have plywood end pieces can be glassed or since been broken, and winning a epoxied in place to make the compart national championship is any indication ment. Strips of half-inch hardwood can of the way the Offshore 33 is capable of be glued either inside or outside the running, I’d have to say it is a very decent compartment sides. A piece of plexiglass boat. To be honest, I really didn’t work can be cut to fit down on top of this all that much on fine tuning the boat compartment and sheet metal screws with the .21 K&B Outboard. The addi can be used to screw the top down on tion of the bolt-on rudder/skeg cured the hardwood strips. There are a num the cornering problem. Because there ber of fine bulkhead seals that can be isn’t a class for outboard vees i n my area, used for running the rudder linkage I only ran the boat in a couple of races to from the servo to the engine. I’ve used set records and then at the 1980 G&M Model seals, K&B seals, Prather N.A.M.B.A. Nationals. I would have to seals, and even airplane pushrod mate say for the amount of time invested in rial. My personal favorite for connecting this particular setup, I certainly gained a the throttle servo to the engine is the great amount of satisfaction and recog K&B Throttle Assembly Kit. Besides nition. building the radio compartment into the During this last racing season, my son hull, it’s possible to use a radio box. used a shortened version of the Ward- There are a number of radio boxes craft Offshore 33 in District 8 for .21 available. I've had good luck with G&M monoplane and offshore competition. Models’ radio boxes and these were With this boat he placed fourth in the covered in last month’s article. In the mono class and fifth in the offshore outboard powered Offshore 33, the category. I borrowed the boat for one 76 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER ANOTHER MODELER-DESIGNED ACCESSORY FROM. New Improved Glass-Filled Alignment marks, 4 at Nylon Engine 90° locations Mounts Pre-drilled engine Thru-drilled nose gear m ount holes (4) holes, vertical and 90 New redesigned Kraft engine mounts are now pre-drilled to accommodate either upright or side-mounted nose gear installations. These high strength, lightweight mounts provide superior vibration damping. A chart listing Side-mounted Round design to nose gear popular engines and the Engine mounting facilitate installation, installation screws become correct Kraft mount is even in small spaces included with each package. self-locking in specially compounded material Kraft Systems, Inc. · 450 W. California Ave„ Vista, CA 92083 · A Subsidiary of Carlisle Corporation Since 1972 NOW FEATURED AT YOUR LOCAL NEIGHBORHOOD KRAFT DEALER race and turned the fastest time I’ve ever type of plug used was rather interesting. appears in this column when it comes to clocked with a .21 powered inboard vee It’s the first time I’ve ever heard of so reviewing boats. hull. much credit being given to the glow Most times this column tends to be A LITTLE SUM M ATION IF YOU PLEASE plug. Going that fast with a model boat is another chapter in the continuing story Inboard or outboard powered, the a combination of things working cor of, "W hat’s Jerry Playing with This Wardcraft Offshore 33 is a fine running rectly including having a bit of luck Month?" I realize that this probably isn’t boat. It has what I consider one of the going for you. Terje is to be congratu going to interest everyone who might better looking deck designs for a vee lated for putting it all together in one run model boats. To be honest, I really type model. My experiences with this place at one time. don’t care if my column doesn’t meet design would indicate it is capable of SO WHY D O N ’T YA WRITE MORE the needs of everyone involved in holding its own against any of the boats STUFF ABOUT RIGGERS AND model boating. That would be a totally currently running in the .21 vee/mono BIG ENGINES unrealistic endeavor. However, it has class. A guy from somewhere in Texas called always been my policy to use informa N O W IF G O IN G 85 MPH me up one evening to chat. Since it was tion sent to me whenever possible. TURNS YOU ON his nickel, I didn't mind listening to his That’s why the information about Terje The Indy Model Boat Club sent me a comments, opinions, and criticisms. Haugen appeared in this article. brief report about the accomplishments Well, the criticisms weren't great listen The fellow from Texas is not alone of one of its members. Seems that back ing, but they were interesting. This fellow when it comes to enjoying fast riggers on October 11 of last year, Terje Haugen enjoyed running the “ heavy metal." powered by big engines. I can certainly laid down a couple of pretty quick Anything less than a .65 wasn't worth appreciate the thrill of tearing up the passes with his four-year old Crap- discussing. He wanted to know when I pond with a 70 mph boat. For the shooter 60 Sprint using a stock OPS .65 was going to start writing about real present, my involvement with riggers engine. His top one-way was a blistering model boats and not those whimpy .21 w ill probably remain in the area of 89.24. His second pass was somewhat outboards and deep vees that clutter up appreciation rather than involvement. slower, resulting in a two-way average of this column most of the time. Enough of this editorializing. Jerry Dun 85.486 mph. Well, I tried explaining I could run lap, 119 Crestwood Dr., S.W. Tacoma, Terje was using an Octura 1167 modi three of those whimpy .21s for the same WA 98498. · fied to nearly seven inches of pitch by price as one "muscle engine.” Besides Greg Huey. A 55% nitro fuel mix pro that, there isn’t much racing for the vided the go juice. The last paragraph of bigger engine classes in my area outside Amanita...... Continued from page 59 the announcement states that the “ se of the very popular R/C Unlimiteds. cret” to this record run,an International Besides those two reasons, I told him I Model Powerboat Association record, just like the smaller engines. My expla fuselage, fin, rudder, stabilizer, and was his GloBee #2-L glow plug. Quoting nations didn’t satisfy his request for elevator with lightweight silkspan, using the article, "Terje found in practice that more information on riggers and big water thinned white glue (aliphatic the GloBee plug really gives more engines. It does, however, explain resin) to attach. Cut trim designs from power, and his newspeea record proves where I'm coming from. I don’t see a tissue as desired and attach. Apply five it." I thought this statement about the change in the type of material that or six coats of clear dope thinned about M A Y 1 9 8 2 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 7 7 horn base plate holes to elevator control horn mount with a safety pin ... set SIT BACK, RELAX... control horn to the side . . . drill 3/32 AND “FLY” OUR PLANES! holes through marked locations .. seal inside edges of holes with cyanoacrylate • WWI Aeroplanes and WWII Warbirds beautifully adhesive . . . mount control horn and and permanently etched on 14 ounce Texas sized bottom plate .. . trim mounting screws tumblers. with a razor saw and file flush with • Matching 8 “ Ashtrays (specify airplane). bottom plate. Unscrew bellcrank as • All our glassware feature the truly unique "Sabulum Etch" process. sembly . . . place a drop or two of • The glass surface is etched at varying depths leaving cyanoacrylate adhesive in the mounting a luxurious and permanent texture — creating the hole and screw bellcrank assembly back ultimate look in decorative glassware. into position. WWI AEROPLANES WWII WARBIRDS Examine the plan and note that the Fokker OK I Sopwith Camel Bearcat ME-109 Thunderbolt Cox Black Widow engine used to power Fokker O Vlil Spad XIII Corsair Munlanjc Warhawk Albatross 0 III S K 6 FW 190 Spitfire Zero the Crystal Amanita is adjusted so that The perfect gift the cylinder and fuel pick up are to the for the modeler or aviation buff who seems outside and the needle valve and fuel to have everything else. tank vents are to the inside. Though it does require a bit of extra work, the In Sets, or Mix and Match (any 6) — $22.95 glohead and needle valve are more Matching Ashtrays — $12.50 protected in these positions in the event (All PPD ConUs. Texas Residents Add 5%) of upright or inverted emergency landings. Write for special group and/or logo prices to: Unscrew backplate-to-engine screws COMING . . . separate backplate from fuel tank . . . 2609 BURNINGTREE CT • THE CLASSIC BIPES remove fuel line from intake fitting .. . LMAN ARLINGTON. TX 76014 * cut fuel pick-up tube mount from 1/16 nylon and trim to fit inside backplate as rough sand and press ends carefully into shown on plan. Drill tight 3/32fuel pick wingtip as shown on plan .. .pull back up tube hole. Set mount in backplate and coat ends with cyanoacrylate adhe and mark mount through backplate sive. screw holes with a safety pin. Remove Bend 1/8 inch of one end of 1/16 mount and drill 1/16 holes through music wire pushrod material back to a marked locations . . . set mount back in right angle . . . clasp the long length next place and screw two backplate-to- to this bend with narrow pliers and bend engine screws through the fuel pick-up Bill Effinger's Classic Design: the long length forward to a right angle. tube mount; so that they hold the SNOW WHITE “ 2 0 ” Re-drill and trim nylon bellcrank to mount securely against the inside of the Joe Raspante's beauliful modol ol SNOW WHITE won every outline shown on plan . . . fabricate 1/4 backplate. Cut a 3/8 length of 3/32 brass beauty contest entered in late 1930‘s Foaturod in Charles Grant's Model Design textbook This 3/4 swe version is perlect diameter washer from 1/16 nylon to fit tube .. . smooth ends and rough sand lor modern R/C Hying Wove had many many requests for it between bellcrank assembly bottom body . . . press tube into mount hole and For .15 to .35 Engine*. 3 to 4 Channel R C Sy*tom* 68' Wingtpon ... 700 Sq. In. Wing Area ... 4% Lb*. and wing spar top . . . drill 1/16 hole seal mount hole to fuel pick-up tube Foil Si.- PLAN N PATTERN SET. RCFF-7 $ 1 4 .9 5 through inside wing as shown on plan body seam with cyanoacrylate adhesive. Prices are tor Complete Plans. Sub Assembly and Slip one end of a 1-1/2 inch length of Detailed Parts Lists Add $2 00 lot Mailing Tube and screw bellcrank assembly and Details on new designs A groat things to come washer into place. medium Sig silicone fuel line over the Send St 00 (refundable) tor more information_____ Trim top of short nylon elevator fuel pick-up tube . . . slip the other end W.E. TECHNICAL SERVICES control horn to outline shown on plan into the tank and around the fuel tank Box 768S4-B. A tlonta G eorgia 30328 . . . slide onto short end of pushrod and vent tubes and back, while bringing the around the first bend . .. tape control tank back so that there is just enough 50% with dope thinner and sanding horn in place on elevator so that the roc/m between the tank and the bacK- lightly between coats with #600 finishing pushrod length between the bends and plate to slip thin-nose pliers in and paper. Apply a finish coat or two of through the control horn is directly over gently clasp the fuel line about a 1/4 inch Glaskote synthetic varnish. and in line with the elevator-to-stabil- from the end and slip the end onto the Cut control handle from 1/16 ply . . . izer hinge line .. . set elevator to neutral fuel intake fitting. Slip the pliers back drill 3/32 holes as shown on plan ... position . . . position bellcrank so that out and making sure that the two screws sand handle smooth. .. seal edges with there is equal movement from each tip through the backplate are lined up cyanoacrylate adhesive and apply a coat to fuselage side . . . place pushrod over through the forward tank screwholes, or two of Glaskote. outside bellcrank pushrod hole.. . mark press the tank and backplate together Separate rudder from fin and fuselage ushrod at point over forward edge of . . . fit the remaining two screws into by running razor edge along the seam ole . . . clasp pushrod at this point place and secure the engine to the tank. on both sides. with inside edges of pliers and with Hold the engine to the firewall and Hinge elevator to stabilizer with heavy outside edges of pliers forward of this mark through the tank mount screw duty nylon thread. Wrap each hinge point and bend up to a right angle. holes to the firewall with a safety pin .. . three times in the figure-of-eight pat Check that the up length is very nearly in set engine aside . . . drill 1/16 holes tern as shown on plan . .. tie off ends as line with the bellcrank hole . . . trim through marked locations and secure shown on plan . . . trim ends and seal pushrod up length to about 1/4 inch . . . engine to firewall with #2 x 1/2 inch each hinge hole top and bottom with a unscrew bellcrank assembly . . . slipout- sheet metal screws. Install Cox 263 drop of 5-minute epoxy. Glue rudder in side bellcrank pushrod hole over push- silencer and attach a Cox 6 x3 black or place and seal seams with cyanacrylate rod end and screw bellcrank assembly Tornado 6x3 white propeller. adhesive. back into position. Move bellcrank to Cut two 32-foot lines from a spool of Form the control lines guide by wrap and fro and see if elevator movement is Conso 721 white bonded finish heavy ping a length of 1/32 music wire 1-1/2 about the same up as down . . . untape duty nylon thread.. .slip one set of ends times around a 3/16shaft so that the wire and adjust elevator control horn back or through the lines guide to the bellcrank resembles the loop end of a safety pin forth if necessary . . . when in position and tie one line end to one bellcrank . .. bend ends over to right angles as so up and down elevator movement is end hole and the other to the other shown on plan .. . trim ends to 3/8 .. . about the same, mark through control with clinch knots as shown on plan. Hold 78 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER Sup er to ug h g la ss fille d engine m ounts SYMETRICAL HOLE PATTERN MEANS MOUNT CAN BE TURNED IN ANY DIRECTION PREDRILLED NOSE GEAR BRACKET Built in nose bracket saves mounting hardware, which means less weight and less cost! UNIQUE BOTTOM DESIGN GIVES THE STRENGTH OF ALUMINUM AT LESS THAN HALF THE WEIGHT HAYES products 1558 Osage street .. .now available In 21 sizes to fit all San Marcos, CA 92069 714/744-8546 popular engines from .049 to .91 at CALL OR WRITE TOR MORE INFORMATION, retail prices from $2.25 to $6.95. line end with thumb and forefinger. . . our old wives tales, I have not had a Please don’t forget that you need clasp line behind windings and pull to logistics problem because of the two good, heavy-duty servos driving those close clinch know .. . seal knots with different types of fuel. large control surfaces, to overcome the cyanoacrylate adhesive and trim ends. GETTING CONTROL fantastic amount of air loading that's Tie the other end of the up control line Although you can safely get away with always present in flight. And naturally, a to the control handle with a clinch knot hooking up control systems in the heavy-duty battery pack (at least . . . seal and trim and tie the other end of lighter BIG Birds the same way you’ve 1000mah) should be part of this special the other line to the other end of the been doing it in the smaller airplanes, it ized airborne system. control handle with two or three simple is, as the saying goes, a whole new ball- Plastic servo trays are a NO-NO, and overhand knots and don’t seal or trim so game when you’re confronted with all servos must be mounted on well- these knots can be loosened and retied installing control systems in a twenty secured hardwood beams. Once again, to adjust control handle to most com pound plus birdie. Entering the realm of the bottom line is SAFETY. fortable flying position. BIG, HEAVY Birds requires a hard look at The split-elevator pushrods (4-40) Wrap lines around the hollows at the the way full-scale planes are built, flown coming off the bellcrank should be well ends of the control handle up to about and maintained. wrapped and silver-soldered. The 4-40 two inches from the wingtip .. . wrap a The Gold-N-Rod Push-Pull system rods and clevises that connect the small rubber band around the middle of outlined in the drawing has been used ailerons to the bellcranks are secured to the handle to secure the lines and secure for almost four years with nary a prob the crank with a 90 degree bend and a the handle across the wing with a large lem. I feel that, as with “ real" aircraft, a wheelcollar with Loktite on the set rubber band. push-pull system is an absolute must for screw threads. Use 5% nitro fuel. . . adjust the needle precise control and maximum safety. The Gold-N-Rods should be just free valve so the engine is running just I don’t use, nor recommend, cable, enough to allow movement, but not so between a crackle and a buzz . . . wipe 'cause most radios cannot tolerate so loose that there’s any slop. Close spacing the exhaust residue off after every flight much wire strung about. This system of the wing ribs gives the aileron rods and your plane will fly really good and eliminates those kindsof radio "funnies”, good support, but the rudder and last a long time. · while allowing solid control and full elevator systems will require a number usable trim range. of standoffs to be added between fuse To preclude the possibility of clevis lage bulkheads; these standoffs can be pin failure, I remove the pins and anchor made of 1/8 or 3/16 inch ply, and Hot Big Birds...... Continued from page 25 the 4-40 clevis to the CB Heavy Duty Stuffed or epoxied in place so that the Horn with 3-48 socket-head cap screws rods are supported every 4 to 5 inches. enjoyable flying. So you see, there is a lot and aircraft-grade self-locking nuts; this The Birds this system has been used in more going for a 12 to 15 pound bird is a must for safety and peace of mind. weighed between 27 to 35 pounds, and than the diehard chainsaw people would And avoid using the thin, white horns have been very aerobatic. I'm not saying have you believe. As I mentioned last and other hardware/fittings made for that this push-pull system is the only way month, Iflyboth methanolandgasoline- use on the lighter birds, because if you to go; I am saying that it’s worth serious powered machines and thoroughly don’t, you’re sure to experience prema consideration ’cause it’s been problem- enjoy them all. And contrary to one of ture failure at these points. free for hundreds of hours. MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 79 Radio Control Club newsletter "The Flyer," who compiled a list from various sources that might aid you in obtaining the details and documentation you’re looking for: Castle Graphics (3-views) P.O. Box AD Get the complete, in-depth Creenbank, WA 98253 story on all our quality kits and accessories. U.S. Marine Corps Museum Quantico, VA Confederate Air Force Harlingen, Texas BYRON Squadron Shop ORIGINALS Silver Springs, Maryland USAF Museum *» Dayton, Ohio ♦ * MORE THAN JUST A CATALOG! US Naval Aviation Museum Pensacola, Florida Please send me Byron Originals catalog(s) at US Army Aviation Museum $5.00 each Catalog price will be credited towards my initial purchase Ozark, Alabama Name Phone USAF Museum Street or RFD Apt » Cocoa Beach, Florida City State Zip Repla-Tech I have enclosed check or money order lor $ 48500 McKenzie Hwy Please charge to MC» Exp. VISA» Exp Vida, Oregon 97488 Iowa Residents Add 3% Sales Tax Prices Subject to Collect-Air Photos Change Without Notice Send to BYRON ORIGINALS. P.O Box 279 . Ida Grove. P.O. Box 14234 Iowa 5 1 4 4 5 Ph 712 364 3 1 6 5 Milwaukee, Wisconsin 53214 National Air and Space Museum Washington, DC FLYING SCALE MODELS Scale Craft A T T E N T IO N Va SCALERS P.O. Box 4231 EPOXY GLASS COWLS FOR Whittier, CA 90607 NOSEN RICA SID MORGAN BAlSAuSA PLATT CONCERT f L f i T HOSTE T tfR A C M 7 CRAFT SHE BE R RUTS 'Λ b % EAA Museum SCALE SURER COB FOKKER D 7 BOfiNGP 12 P26 F4B2 P.O. Box 229 F4B4 SPARROW HAWK GEE BEE MOO r MACBRlEN S TURBULENT CHRISTEN EAGLE BR/S i GHELLA S STARDUSTER Hales Corner, Wl 53130 II i SCALE J3BI BABY FlYBABY AIRCAMPER PILOT Wylam and Nye Scale Drawings JUNGMANN r J 5 SCALE b OTHERS Model Airplane News WHEEL PANTS FOR 837 Post Road CITABR/A STARDUSTER II PITTS SKYBOLT LIBERTY SPORT CHRISTEN EAGLE P 6 E HAWK STEARMAH STINSON SR 9 Darien, CT 06820 MULLIGAN b OTHERS "NEW" SPARROW HAWK F9C-2 13 sheet»)...... S21.50 Clen H. Curtis Museum 1/4-scale R/C 76-1/2" span GRUMMAN J2F 6 "D U C K " 14 sheets) ...... $19.50 BRAZEDb HEAT-TREATED WIRE GEARS b CABANES Hammondsport, NY Π / 2 " scale R/C 5 8 " span LARGE SCALE PLANS AVAILABLE Flying Circus Aerodome VOUGHT OS2U 1 & 3 KINGFISHER ...... $19.50 14 sheets) 1-3/4" scale. 6 3 " span Send SASE tor latest list Bealton, VA GRUMMAN GUARDIAN” AF 2S ...... $17.50 We supply Modelers with fiberglass parts for your SERVO-SAVER (3 sheets) 1-1/4" scale. 75 " span Add S2 00htndlnf Λ potttft plans— Write or call us Dave Cauer, who hails from Hanover 8'ocfxire 5Ot T & D FIBERGLASS SPECIALTIES Park, Illinois, must have messed up his SMITH PLANS 30925 BLOCK GAB0ÍN cir> O' 48'35 9422 N. Fairway Blvd . Sun Lakes. A Z 85224 share of servo gears by ramming control PHONE (313) 421 6358 surfaces against garage and car doors while transporting his BIG Birds . . . QUADRA Inflation seems to have caught up with ’cause he did something about it,and the Frankly, up until now. I’ve been luke U.S. Quadra, because Dario is now drawing shows how. I vaguely remem warm about the Quadra, in spite of its charging $19 for overbalancing ALL fly ber similar items in the past, but they popularity. But the Quadra people have wheels. It’s still a terrific value when you weren’t as solid nor made out of such finally won me over with their latest consider how well this overbalancing heavy wood. Dave has only one end of change; the ’82s now have needle bear does its job. his “ keeper” rubber-banded, which ings on the top end of the conrod and all And by the time you read this, Dario means a lot more strength available to the engines that U.S. Quadra has been should have the BIG 3.05cid Quadras keep the control surfaces in place when shipping since the beginning of the year ready to go. This new piece of ma bumped. have this important mod. But you’d chinery has a whole cubic inch more FLY-IN better be careful who you get your power and weighs only a pound more Although I’m writing this in early Quadra from, because even though than the smaller Quad . . . and here’s January, you won’t be reading it ’til early you’d be buying it in ’82, you might be something that’s gonna make you smile April ... so you’ve only got three getting one of the older models that from ear to ear: it’ll fit on the same months left to get your butt in gear and have been stockpiled. mount, so there’s no need to tear the make sure that dream machine will be How important is the upper end of the front end apart and do a complete face ready for the 5th Annual jumbo Fly-In conrod? Well, from what I’ve seen of a lifting in your quest for more power. I . . . which has been getting bigger and good many Quadras, one of the major don’t have any figures yet, but this 3.05 better every year. reasons for (non-crash damage) repair should breathe hard on the heels of the As many of you know, the Jumbo is has been galled and seized wristpins. big Kawasaki... sponsored by Chuck Cunningham, With the addition of needle bearings, SCALE INFO and this year will be co-hosted by both we’re looking at a probable increase in Even though I haven’t yet succumbed our local IMAA Chapter 21 (also known performance and a marked improve to the bite of the scale-bug, I fully as the North Texas Miniature Aircraft ment in longevity. These new Quadra appreciate the time, effort, and expense Association) and the Ft. Worth Thunder- wristpins must be very happy with the (both in research and building) that go birds. Mark July 17 and 18 on your prospect of living a much longer and into a scale project. And so does Don calendar ’cause you’re not going to want fruitful life. Moody, editor of the Prince Georges to miss those two days of pure flying fun. 80 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER 85’ HARBOR TUG Bv F r a n c i s s . s m i t h L.O.A.37” BEAM 10.5” ALL WOOD KIT SAWN FROM AIRCRAFT QUALITY BIRCH PLYWOOD. SPRUCE AND FIRST GRADE BALSA 1 /4 " PLYWOOD ONE-PIECE KEEL 1/8" PLY FRAMES AND SUB- DECKS 3/3 2" PLY C A B I N D E C K A N D R O O F 1/16" PLY MAIN DECK AND CABI N SIDES PRE-CUT AND DRILLED BRASS PORTHOLES. HANDRAILS. STANCHIONS. SKEG. RUDDER,AND STUFFING BOX 1/8" X 1/4" BALSA HULL PLANKING CABIN AND GRATING ARE REMOVABLE FOR ACCESS TO RADIO AND TILLER ENGINEERED FOR SMOOTH ASSEMBLY WITH INTERLOCKING FITS OF H U L L A N D CABIN DESIGNED TO OPERATE ON SINGLE PROPELLER WITH ONE OR TWO ELECTRIC MOTORS A v a i l a b l e O n l y f r o m (RUNNING HARDWARE NOT INCLUDED. FRANCIS SMITHS SHIP YARD AVAILABLE UPON REQUEST) (FORMERLY PROSPECT PARK HOBBY SHOP) PRICE $225.00 P.O.BOX 118 INCLUDES UPS SHIPPING IN U.S.A. NORWOOD. PA. 19074 CHECK OR MONEY ORDER ONLY If you've been here before, you proba TIP OF THE MONTH MAH capacity, or even a pack of alka- bly know the way as well as I do; if, NEVER, but NEVER, lay your Dremel lines. The Battery Backer is in turn however, this'll be your first time at the tool in your lap with it turned on!!! Al plugged into the receiver. Jumbo, let me bid you a big "howdy” in Alman, 2609 Burningtree Court, Arling The airborne system then draws it’s advance and urge you to write for an ton, Texas 76014. · power from the main battery pack as it information packet that contains a map normally does, the Battery Backer and and other essential info. As with all extra battery pack merely enjoy the IMAA fly-ins, this is traditionally a no Electronic..... Continued from page 31 flight. In the event the main battery goes contest, low-key, fly-if-you-want-to get- flat, intermittent or defective for any together that allows you to really relax There have also been some up-dates reason, including a broken wire, bad and enjoy. Start making your plans now and additions to the well known Kraft switch, etc., the Battery Backer senses so we can look forward to meeting you 7C, now being called the MKIII, in the the voltage loss, and goes into it’s act. It in July. form of reversing switches on the four switches over to the auxiliary battery, And while on the subject of IMAA and flight control channels, as well as dual and your system continues to work fly-ins, next month I’ll be able to tell you rates and roll button. normally. In addition, it sounds an audio where and when the 2nd Annual IMAA If you are into competition, or a alarm, so that when you are back on the International Fly-In Festival is going to competition calibre flier, be sure and ground and have turned off the Margar be held. We (the IMAA Board of Direc take a close look at this one before ita blender up front, you’ll hear it and tors) are deciding on it at the present acquiring your next system. know you are on auxiliary power: one time and I should know within a week. RAM saved airplane. Since the first Annual Fly-In at Louisville RAM (Radio Controlled Models) was The Battery Backer is priced at $39.95, last September turned out to be so showing not one, but eighteen (count which along with another good quality successful, this years festival should be a them) various lighting, fail safe, and Ni-Cd pack and harness, will make the real "Barn-Burner." control electronic devices. They are all total around $50, but that is a cheap price Also, let me throw in a reminder that, interesting and useful in various appli to pay for saving an airplane. I really like like this BIG Bird column, IMAA is also cations; one of them I find exceptional, this, and plan to see that mine gets a lot for all BIG Bird Lovers. You don’t have to both in concept and in actuallity. of sight seeing in my airplanes. have, or even like, scale flying machines It is called the RAM Battery Backer, EMS to belong to this great organization and I wish I had gotten around to EMS (Electronic M odel Systems) that’s truly dedicated to the BIG airplane developing it. This device will save your showed its fine and extensive line of movement. And your ten bucks gets you airplane from one of the biggest air airborne systems and accessories; four copies of High Flight, our outstand plane eaters, defective, discharged, or servos of all sizes, receivers, battery ing quarterly publication that’s chock- improperly charged airborne batteries. packs, switch harnesses, and servo trays. full of goodies, how-to’s and informa It is a small, light weight (one ounce) All of these itemsexhibit exellent quality tion that’ll help make your every flight device, into which you plug your air and workmanship, and use the latest safer and (if possible) even more enjoy borne battery, plus an auxiliary receiver available components and techniques. able. battery pack which can be as small as 100 They cover all applications, from car and MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 81 of them to put it out of the just-another- radio category. CANNON Quarter Midget NAT's Win For example, it features dual rates, R/C SYSTEMS mixers, reversing switches, ratcheted With SUPER-MICRO System ! trims, adjustable length sticks, plug-in A fter establishing a new W orld Speed RF modules, watertight servos, and i \ Record, DAVE LATSHA of Lemoyne, rechargeable batteries and chargers. It is Pa. DOES IT AGAIN! This time his available on all 72 MHz frequencies. The V « * t / Quarter Midget "Rivets" took high airborne components are of average points in 18 rounds of hard flying at size and weight, and should not present k the NAT's in August of 1981 to win any installation problem in the normal ^ FIRST PLACE. An outstanding size model. performance for pilot, aircraft and Three Apollos are available, a five and radio in Quarter Midget Pylon. six-channel, two-stick system for fixed Time: 1:27.09 wing models, and a six-channel, two- DAVE and "RIVETS" SUPER-MICRO R/C stick system containing all of the above WORLD'S SMALLEST R/C SYSTEM - - ITEM SYSTEMS FLITE PACKS features plus those extras required by for indoor R/C, electric, 1/4 & 1/2 A egg-beater pilots. 2 C H . $169.95 (2.9oz.) Schoolyord & Competition, sailplanes, $234.95 Call or write Las Vegas for complete Competition Quarter Midgets & Sport 3 C H . 292.95 2 0 7.50 (3 .39 oz.) information, as well as who is playing Aircraft thru 40 power! 4 C H . 349.95 2 4 4.95 (3.88oz.) where on the strip... CANNON aECTRONICS *MICRO SERVO (.47 o z .) . . $ 4 7 . 5 0 5 CH . 247.95 (4.16 oz.) 359.95 Did you ever hear why Dolly Parton 4 C H . MICRO RX (.5 4 oz.) .. 8 9 .9 5 •Micro or Dean's plug; others $2.50 extra. has such small feet? S H IPP IN G : Systems $6.50; F lite Packs $ 4 .50; Servos or Rx Cause nothing grows big in the shade! $3.00; N o C .O .D .'s. In Cal if. add Soles T a x. Brochure 60ς I actually heard that on the radio, so it in U .S., $1.70 Foreign. Add 4- 1/2% for Visa, Master Cord. should pass MB’s censors. What it has to ^ 13400-26 Saticoy Street North Hollywood. Calif 9160S __ (213) 764-1488 | do with the subject at hand is that maybe that is also one of Bill Cannon's secrets, everything he manufactures is so small it too must be grown in the shade. Would you believe a four-channel receiver at .58 ounces, and measuring 1-9/16 x 7/8 X 39/64 inches? How about REDSHIFT servos at .47 ounces, measuring 31/33 x 1-5/64 X 29/64 (less mounting ears)? THE HANDMADE It is called a Super-Micro System, and ENGINE is available either as Flite Packs to match an existing transmitter, or as part of a WARDCRAFT OFFSHORE complete Cannon system including also 44" - 38" - 33" - 31" your choice of the 820T average sized No finer racers anywhere transmitter or the a grown-in-the-shade DRAPER'S R/C SERVICE C-X Record Holder 810T, with un-Dolly dimensions of 1- WARDCRAFT MARINE 10 Castle Hill Drive 11/16 X 4-13/16 x 5-3/8 inches. P.O. Box 2579 Lynnwood, WA 98036 Though obviously, this super-small Bethel, CT. 06801 Frank Ward Dealer Inquiries Invited. super-light equipment is the perfect Days: (206) 543-6534 answer for control of super-small ma (203)748-7320 Eves: (206) 775-3969 chines, it does have enough muscle to handle larger models, up to and includ ing .40 powered equipment. In fact, the boats to Big Birds . . . or whatever it is we about that!) terms reported the whole 1980 Quarter Midget racer record,set by are calling the big ones now. They are operation as taking place in Bellevue Pennsylvania's Dave Latsha, was done available with the connectors of your Washington, instead of in Virginia, using a Super-Micro System. choice; the list reads like a Who’s who of where it really is. (It was in Washington Oh yes, trays and appropriately sized R/C manufacturers. when O/C was written, wen) airborne batteries come with the Super- Of interest primarily to those flying Then, in this column, in the March Micros . . . think seriously about using the big ones is the EMS "Eagle” servo, a issue, I reported that none of the in one in that new shade-tree built project husky brute capable of 156 oz. in. of dependent service centers were serving of yours. thrust. Like some of the other larger the Cox/Sanwa system, though I did say TOWER HOBBIES EMS servos, it uses a special four- "as far as I know", which was true at the The Tower Hobbies booth was a transister bridge output circuit amplifier time. I have learned differently, so to set regular cornucopia of modeling good that is capable of handling over two the record straight, Bob McDaniel is ies, except that I missed some of the staff amps of current . . . that mechanical manufacturing the Ni-Starter, the Bo- (He means girls, wen) they’ve had at power has to come from somewhere! Starter for boaters, and servicing Cox as other shows. Maybe they feel that The Eagle is built into a ball-bearing, well as most other systems, at McDaniel California has enough native attractions, watertight case measuring (inches) 1.7 R/C Service, 13506 Clendundee Dr, while Toledo, for example, on the Η X 0.75 W X1.5 L, and weighs 3.6 ounces. Hernon, Virginia; (703) 435-5805. other hand, needs all the help it can get. The transit time is 0.5 seconds for 100°, CIRCUS HOBBIES Anyway, they did have some note which is not at all bad for such a brute. It The guys in the pink coats were busy worthy items. One being the now famil is furnished with a T-arm, and a long showing their extensive line of every iar System 4 Six-Channel R/C system, arm; the color is ivory. At $44.95, it is not thing from JR super radios to gas tanks. which isanexcellentvalueat$160.1 have unreasonably priced. The Pasadena show was the first public a considerable amount of flying on one McDANIEL R/C SERVICE showing of its new line of budget priced of these, and can attest to it’s workman It has been pick-on-McDaniel time at Jr. R/C systems, called the "Apollo” ship and performance. No bells and MB lately . . . our January Over The Series. While it does not have quite all of whistles; just everything required to get Counter Column, while describing the the features of its competition big your trainer or sport airplane in the air, McDaniel Ni-Starter in glowing (sorry brother, the Apollo does have enough and to keep it there. 82 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER LOOKING FOR SOMETHING REALLY NEW IN A SAILPLANE? MUIT/PLCX n m m o Excellent for FAI-F3B competition and all around flying as well as Thermal duration. Proven design.Quality of kit must be seen to be appreciated-AII instructions in English. Airfoil. Eppler 193 Span 100.4 Epoxy glass fuselage—Built up wingsand tail group—Ailerons standard (Spoilers and/or Flaps optional). If this ship was marketed through regular Distributer/Dealer network you would pay $225.00 plus for this kit— However because we are the importer,we can pass a considerable saving on to you,the soaring enthusiast $ 1 4 9 . 9 5 F.O.B. Red Lion.PA. Send $3.00 cash,check or money order for our Fully Illustrated 1982 catalog. P.O.Box 341 Red ϋοη,ΡΑ. 17356 C7Ae S aifp/ane f a c t o r y (717) 244-4508 9am.-9pm. Eastern P.S. Come see our displays at the 1982 WR AMS & TO LEDO shows. THE GREATEST HOBBY SHOW OH EARTH IS C0MIHG! SAT APR. 24th OVER 10 A.M.—6 P.M. SUN. APR. 25th 11 A.M.—6 P.M. IN P R IZ E S INDOOR & OUTDOOR DRAWINGS EVERY HOUR SEE YOUR HOBBY OR CRAFT DEMONSTRATIONS RETAILER FOR FREE DOOR PRIZE COUPONS. CRAFT SEMINARS • • RADIO CONTROLLED ACTION. HOBBY •U-CONTROL FREE FLIGHT • GIANT MODEL RAILROAD CONTEST LAYOUTS IN ACTION. • CRAFTS FROM JEWELRY YOU GAN W IN! TO QUILTING AND MORE. NO ENTRY FEE L Å LONG BEACH CONVENTION CENTER NON-SELLING SHOW 300 E. Ocean Blvd., Long Beach, CA 90802 One of the new soon-to-be-available Ace R/C products that caught my eye is called a "Datamaster"; and is a combi R/C Race Cars nation Digital Pulse Meter, and Servo Driver. The DPM, as it is called, is one of * 1 : 8 World Champion Gas Super-J the best ideas to come along in a long ♦W orld Champion Picco 21 Racing Engine time. It is of uncalculable value to the *1 :1 2 Electric Phaser 120 technician, but still has many uses for the *1:18 Electric "Pocket Rocket" flyer, who can use it to adjust transmitter channels, set low rates, reestablish trim We manufacture the most complete settings, monitor transmitter drift and line of gas R/C race car accessories. performance, and many other uses. We manufacture competition oriented Married to a servo driver such as this 1:12 electric race cars and accessories.^ one, it permits one to accurately set all servos to the same exact center, assur Send $ 1.00 for catalog package ing complete interchangeability. It can DELTA Mfg., Inc. grade servos for more or less travel; in 27 Racecar Court, Lorimor, Iowa 50149 short, it can let you select your servos for USA______Phone: (515) 763-2220^ installation in the most advantageous position. It is just about the time of the year makes this system even more attractive when Ace R/C releases it's new catalog; HEY QUARTER SCALERS ! when less than four channels are re you should make it a point to send for quired. one, you'll find it full of interesting and Tower Hobbies is also the US distrib needed items of all kinds. Q.S.A.A. Chapter 7 Hosts The 1st utor of the Canadian built Isotronic West Coast Happening of 1982. ROYAL ELECTRONICS Master Series R/C System, a more ad Fully assembled, US made servos for WHEN? May 1 & 2 vanced, more feature-loaded radio than less than $20 . . . that is just one of the either of the other two described. It pleasant surprises from this Colorado WHERE? Sepulveda Basin comes standard with seven channels, company. It is called the RS-21, is of Recreational Area. open gimbals, dual rates on elevator and average size and weight, and is priced at ailerons, electronic cross trims, and (Camping Available, No Hook-Ups) $18.50 without connector, $19.95 with servo reversing switches. Ni-Cds and the connector of your choice, which charger, too. Tower priced at only includes most of the current and some GIANT RAFFLE!! $249.95, this one is worthy of more than a not so current systems. There is a smaller passing glance if you need or can use brother (or is a servo feminine?) called C.D. Walt Clark some of the more exotic features. RS-23, for $23.50 and $24.95, with and Call 213-345 3910 (Evenings) ACE R/C, INC. without connector. For Information Whatever you need, and a lot of things There is also the Royal Classic Custom you never thought of, you will see at the system, in kit form, eight channels, Ace R/C booth, and in their catalog. which includes many of the so-called At this IMS, I was introduced to There are Pro Line’s (isn’t it great to see super radio features, like low rates, slow another Tower Hobbies bargain, the them back?) There are Silver Seven’s, roll switches, servo reversing, throttle Astro GX202, for those applications both assembled, and in kit form, and trim at slow speed, plus one rather requiring only two channels. It consists there is all manner of electronic acces unique feature that gangs two channels of a two-stick. Mode One, small corn- sories and equipment, like the Digipace to the throttle stick for twin engine act receiver, two small servos, switch digital readout battery cycler, chargers models, with independent throttle trims arness, battery case, servo accessories, of various types, Ni-Cd Extended Scale yet! The receiver features double-tuned and hardware, on any 27 or 72 MHz Voltmeters, batteries both cased and front end, FET mixer, and low current frequency, for only $69.95. This is a dry replacement, and even pulse type sys drain. Servos can be your choice of five cell system, requiring twelve “ AA" cells. tems and actuators, which I don't be different types in varying sizes. (We recommend only the best quality lieve any one else makes any more, and Royal Electronics has a number of alkalines be used, and tested regularly). which, believe it or not in this day of worthwhile items, such as a one ounce Tower also furnishes “ Eveready" cells at pushbutton flying, people are still flying two-channel receiver kit, a dual digital attractive prices. The 180-day warranty and enjoying. battery Cycle/Charger, the original Digital Pulse Meter, and what many of us consider the ultimate in meter type tachometers, the expanded scale Pro- J O H N P O N D Tach, which lets you measure the per formance of your engine on five over lapping expanded scales with the sta bility that is only obtainable with a meter Old Tim e Plan Service type unstrument. The largest selection of plans in the world at the most Most of Royal's products are available in kit form, but if you are strictly anti-kit, reasonable prices. Each list $1.00 take a close look at the Royal Omega All 4 for $3.00 transmitter, with many features of the No. 12 OLD TIMER F/F GAS Classic, plus plug-in RF, mixers, timers, No. 12 OLD TIMER RUBBER/TOWLINE and a host of other features. Royal is also No. 12 OLD TIMER F LYING SCALE A through K an excellent source of hardware and No. 12 OLD TIMER FLYING SCALE L through 2 electronic parts for service technicians and tinkerers. Write in and aks for a New plans prices effective Oct. 1, 1981 catalog. P.O. Box 3215 TAXI TO THE PITS San Jose, Calif. 95156 Well, thanks for taking the time to Phone (408) 292 3382 walk through the 1982 International 84 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER NEW# GOLD-N- SM000TH LANDINGS... Gasoline/Diesel Fuel PUSH RODS that hug the turf for Positive, No Bind Conversion Kit For Flight Control Sullivan Fuel Tanks ° \ γ \ \ SINGLE GEAR FITS NOSE OR Now you can use Sullivan tanks b y l MAIN GEAR for your gasoline or diesel powered models. Write tor With our fuel conversion kit, you Free Fact Sheet can fill your Sullivan regular fuel gas tank with gasoline or diesel fuel. Save your money and check out our kit. Here's what you’ll get: • 8" large BUNA-N tubing The push • 3 Barbed fittings rods that beat the clog. Pat • 1 BUNA-N stopper Strong, lightweight, “REALISTIC" ented splines on landing gears eliminate erratic vi • 4 Nylon lock ties inner rod cut right Also available: bration and feature short fulcrum through that mess. for ground hugging ability. Caster 3 ft. length of large BUNA-N Temperature compen tubing, 1/8" I.D. sated to prevent action. Adjustable pressure. Easy to 3 ft. length of medium BUNA-N elongation. Good as gold. customize. Four sizes to fit wheels tubing, 3/32" I.D. Insist on Gold-N-Rod. from 1'k to 3". Ask about our % scale Clevis not included. tail gear. W A R N IN G To All Modelers: Do Not Fly Near Overhead u lU v Power Lines PRODUCTS, INC. 535 DAVISVILLE ROAD · WILLOW GROVE. PA. 19090 · USA (215) 659-3900 Modeler Show with me, hope you The idea for Stan began when I found But the Cox "plastic plane” engines enjoyed the tour. Next month, we'll get a piece of super-light Sig tapered balsa have no tank. So you substitute a 6-inch back to the type of subjects we've been among my supplies. It was four inch piece of clear fuel tubing, coiled neatly covering in the past issues since the wide stock, almost warp-free, and it around the plastic engine mount (made column started. I am happy to report weighed under 30 grams. “ Two hand- by Goldberg; 85 MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 85 SCALE AIRCRAFT MANIFOLDS A manifold to fit any type cowling • Universal typ· for enclosed • Deep, narrow design allows PITTS STYLE MUFFLERS c o w l· manifold to fit Into moat seal· • For scale aircraft such as the PITTS * H model cowls and CESSNA 150 •Three tell tub·· to suit any •Angled exhaust tubes exit to bottom engine position •Tw o exhaust tub·· to «V of cow ling allow maximum exhaust •Select on· tall pip·, remove •W orm drive mounting strap I removal with I··· heating other* If desired Jf* •T all pipe extensions, clamps and • Small, compact, «asy to W -TWO SIZES— mounting hardware Included attach .29·.40 n « -Three Slzes- •T all pip· extension Included EM -40____15.00 - -29.40 .. 17.95 EM-40B .15.00 45-.80 .. 19.95 • All mounting hardware, EM-40S . . 16.50 •90-.91 .. 23.! clamps and screws Included 9 .45-.80 HÍ -THREE SIZES— 1 » E M -1...... 09-.19 . . . . 11.95 EM-S...... 16.25 E M -2...... 29.40 .... 12.95 EM-SB___ 16.25 EM-3 ...... 45 .80 . . . 14.30 EM-SS .17.25 1 1 At most leading dealers. If not available. OROER OIRECT. Add 10% for 1209 Geneva Ave postage and handling. Calif, residents add 6% tax. Check or Cod TATONE PRODUCTS San Francisco. Ca. 94112 accepted. Supply card number and date with VISA or MASTER CARD. CORPORATION (415) 334 7189 o’clock, two washers at eleven o'clock, wing until a long glide is obtained. These one washer at five o’clock and no adjustments are not final, as constant washers at seven o’clock. Izzat clear? minor changes are made during tests. THE Don't invest in those huge Trexler air- However, they do serve the useful wheels unless you particularly like their purpose of preventing crackups under FANTASTIC funky look. And if you do use them, power. don’t fly them into cactus. One last tip: Warping the wing is a necessary part NELSON .15! never fill Trexlers by blowing into them of adjustment to offset the torque of the QUARTER with your mouth. I did this for years, and propeller. Viewed from the front, the couldn’t understand why the valve left leading edge of the wing is warped MIDGET stems would gum up, stick together up about 3/16". The leading edge is LEGAL ! internally, and finally rot and fall off after warped from the center . .. where its For complete Information, just a few uses. Couple of years back I shape is unchanged . . . reaching a write or call: popped for a genuine Trexler inflating maximum near the tipof 3/16". The right Kustom Kraftsmanshlp syringe, and now I can use the wheels leading edge is warped down about P.O. Box 2699 over and over without problems. Seems 3/32" in the same manner. The leading Laguna Hills, CA 92653 the humidity from your lungs does a bad edge of the rudder should be offset Phone: (7 14) 830-5 162 number on them. about 1/8" to the right (viewed from the Dealer Inquiries Invited Now: does anyone know how to make front) (or an against-torque circle. them cactus-proof? Power flights should be made first (You can also extend their life by an with a limited number of winds. . . 50 to no matter how fancy you carve it. Ditto occasional treatment of Armor All. 100 turns. Circles should be to the right the fuselage shape: what’s important wen) · during both power and glide. On isn’t the shape so much as the moment successive flights when increasing the arms. The long tail and short nose are number of turns, it will probably be good for stability, and seem to work out necessary to add a little down-thrust to Old Timer. . . . Continued from page 38 about right for balance, as well. prevent stalling. And possibly right Like all free-flying creatures, balance thrust will be necessary to hold the right and angular settings make all the differ leading edge. R/C glider builders will circle. Make these adjustments in the ence. Here's the steps I followed to set relate to the two-piece stab, each half of thrust line by inserting small balsa up Stan: which plugs into 1/32 wire “ rods'.'. slivers between the nose plug and the 1. Use the lower wing for reference. A most unusual feature is the use of a front of the fuselage. That means gluing it in place before you rubber motor (12 strands of 1/4-inch A good glide should always be the first cut (he stabilizer slot, or mount the flat) without slack. Struck went for a consideration when making adjust upper wing, or sand the nose flat for the near vertical initial climb, and got ments. It should be as flat as possible, firewall. sufficient altitude in the 35 to 40-second near the stall, but still not mushing. For 2. Place a metal straightedge along motor run to get well above much of the windy-weather soaring, a very slight stall the bottom of the lower wing. Mark off competition. He put 750 winds into the and a sharper circle are excellent. the stab slot so that the rear of the stab is motor and did not have to worry about Otherwise a steady glide and 40-to-50- 3/16 inch higher (i.e. further from the slack rubber shifting back and forth to foot circle are the best. Once the glide is straightedge) than the front. disturb the carefully adjusted glide. obtained to your satisfaction make final 3. Using the same straightedge posi Struck’s flying instructions are worth adjustments for the power flight. tion as "zero line," scribe a line across repeating . . . so we will. In the climb, the size of circle is not so the pylon that’s parallel to it. Use this First check the balance of the model important as long as the maximum new zero line to set the top wing at 1/4 and the incidence of the surfaces. The altitude is attained. Slight stalls in fairly inch positive incidence . . . i.e. 1/4 inch model should balance in a normal flight large circles may be eliminated by a little higher at the leading edge than the attitude when supported on the finger right thrust if the glide is good. Under trailing edge. tips at the diagonal wing-tip braces. full winds the first part of the flight is 4. You can "eyeball" the firewall for Rest the wing flat atop the mount (or almost vertical with a slight lean to the down and right thrust if you wish, but I preliminary flying. The elevator should left with the torque. The circle gradually find it easier to set it true and then make be at a negative angle of about 3 degrees. tightens to the right as the motor runs thrust adjustments with grommets or (Raise the trailing edge about 1/8" out. · washers as needed. The Cox Babe Bee above the leading edge.) Now try a has mounting lugs at eleven o’clock, one hand-glide in a grassy field where the o’clock, five o’clock, and seven o’clock, landings will be soft. Correct any diving when viewed fromthefront. The original tendency by inserting small slivers of model flew with four washers at one balsa under the leading edge of the 86 WHEN CONTACTING ADVERTISERS, TELL 'EM MODEL BUILDER SENT YOU! MODEL BUILDER SETTING W e STANDARD Leading the way for years with innovative and trendsetting designs American R/C Helicopters has set the Standard of Excellence with the intro duction of the Mantis. Very popular. * this .40 powered R/C helicopter offers a whole lot more than it's modest price would indicate. Precision craftsmanship and high quality provides performance that can’t be beat! In-house production puts us a step ahead. Our quality is uncompromised and our service unparailed. As manufacturers we have an extensive inventory, so you won’t find yourself waiting for that overseas parts shipment. We pride ourself in our courteous, reliable service. Compare and discover for yourself the exceptional value that is built-in each and every helicopter we sell! KIT SPECIFICATIONS: DEALER and DISTRIBUTOR INQUIRIES INVITED . . . SUPERMANTIS ★ Rotor Diameter - 41 Vi" COLLECTIVE PITCH Collective Pitch ★ Tail Rotor Diameter - 9" MANTIS MODIFICATION with functional ★ Length (nose to tail) - 43” Converts Mantis mechanical tail Fixed Pitch ★ Height - 13 Vi” $189.00 to SuperMantis rotor compensation $85-00 $225-00 ★ Weight - 6 lbs. Prices subject to change without notice A m e r i c a n For Further Information Call or Write: (714) 744-7533 JJ R/C Helicopters, Inc. 635-1 1 North Twin Oaks Valley Road ★ San Marcos. CA 92069 ■ the State Fair either!" form of flying. His latest, as can be seen Plug Sparks . . .Continued from page 38 Columnist note: Right on, old boy. in Photo No. 7, is his idea of flying elec Those were really great days, with every tric and gas models on the same day. some respects I was disappointed at the one experimenting with all sorts of gas According to Gordon, he started off lack of interest, but at least it was a good model designs. Most everyone is still with a Civy Boy 51 with a McCoy 19 Red excuse to get some cross country flying alive, with “ Mad Russian’’ Drobshoff Head and Austin timer with fuel shutoff time in. living in San Francisco, Charlie Werle in setup. For electric, the 51 has motor and "The main thing I remember about Sacramento, Pete Bowers still up at batteries from a Black & Decker Cordless the contest was a fellow from San Boeing (moved up there from Palo Alto), Hedge Trimmer found in a local pawn Francisco called the 'Mad Russian’. He and of course, Irwin Ohlsson still living shop. Made five flights using a 10-8 C/L was a tall skinny kid with wild bushy hair in East Rolling Estates. And ya know, they Tru-Flight prop. Finally replaced that (columnist note: this is slightly incorrect. are pretty active in model or full size with an electric motor from a Western The only ‘Mad Russian' was John avaiation yet! How about that? Auto Co. "Wizard” grass trimmer and Drobshoff, who used to pal around with BRUCE LESTER PHOTO Astro Flight 05 prop adapter for 9-6 Charlie Werle, who really answers the Well, time for another Bruce Lester Power Prop. description; Charlie always loved large ” goodie’’, this time a shot of Bill Redeker Five flights last week. The idea is to free flights). Anyway, he had a wing that with an unusual pylon design with a rare charge overnight and then fly all day would fit well on any sailplane. It seemed 40 to 50% lifting tail. without recharging. As Gordon says, if to have a tremendous wingspan, ap Photo No. 5, taken at the Detroit the cells will hold enough charge to trim proaching 72 feet. Of course, the inevi Nationals, shows the influence of pylon a hedge then they will handle repeated table happened, the center section gave designs that were starting to spring up in thirty second engine runs. Very smooth, way in flight. Instant re-kit! I don’t think the wake of the successful Zipper. gentle climb and easy transition to glide. he ever got over that or tried to fix it. BRUCE LESTER! More fun! (Knowing Charlie, he would junk it and After all the photos we had run that Finally succumbed to charging on the proceed to build a better model.) were contributed by Bruce Lester, it is field idea, and now has a 100W power " Unfortunately, I had to leave the about time we ran one of the old master unit. Can’t wait for the great weather! contest before its completion and the himself. PHOTOS! PHOTOS! awarding of prizes. Neither Howard Photo No. 6 shows Bruce with one of Rather than make up some heavy Roberts or Pete Bowers won anything. his favorite projects, a scale glider, R/C writeups, thought we would run some The flight home in the open cockpit was of course. As Bruce sez, at his age, he pictures of fellows and their models. delightful in comparison to the rough- can’t shag them anymore. After all, didn’t LIFE magazine hit it big as-a-cob flight up. It was cool on the way Bruce has just recently gotten out of with nothing but photographs? home, hence, the air was very smooth. It the hospital in fairly good shape. As he Photo No. 8 shows Jack Albrecht’s was almost dark when I got home and says, as long as the hospital people have latest hot iron, a Spitfire powered Sail had to make my first landing in the dark. blood for him, he will keep going. All plane. Jack, who is the service manager I’ll always remember that flight with the the best to you Bruce! for Kraft Systems, is also a died-in-the- lights beginning to come on below. CODDING CUTUPS wool old timer flyer, and as such, is an Certainly won’t forget the good time at Trust Gordon Codding to try every active member of SAM 49. That Sailplane MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 87 cabinet maker par excellence, making TOMORROW'S DESIGNS TO D A Y· up a beautiful walnut base, this trophy N F W Γ Δ Μ Α Μ Ω for the CAMANO & FOAM WING CAMANO 100 has become a highly coveted trophy that 4 K-MINNOW GLIDERS. 1/4" wider to fit FUSELAGE most servos and IT IS GORGEOUS ! ! ! is awarded by SAM 49 annually. Great guy, that Jack Jella! THE MULTI-CHANNEL. FOAM WING CAMANO TOO Clarence Bull, of SAM 8 up in Portland, 1$ now available with the VERSATILE EPPLER 193 airfoil Oregon, loves to build those real early and 1/4" wing rod standard (5/16" rod optional).. $149.95 or the EPPLER 205 or HEW EPPLER 214 & 5/16" rod ...... $159.95 birds! Photo No. 11 shows his handi work, a Quaker Flash, at the Salt Lake OUR NEW C AM ANO 100 F3B SAM Champs. As Clarance sez, maybe Is now available. It features 1/64“ PLYWOOD wing TOP SKINS, WHITE FOAM CORES (blue foam available $5.00 the Quaker line of models weren't the extra), and choice of EPPLER 193, 205 or 214 AIRFOILS greatest models for competition, but (the 205 1s standard unless specified otherwise). The FUSELAGE is the SLEEK MEW 100 FUSELAGE ...... $159.95 they are great sport flyers; slow, steady, and durable. The last item is what SEND 2 STAMPS for CATALOG of our complete line of appeals to many modelers. WORLD CLASS MULTI-CHANNEL GLIDERS. You cannot buy better performance for THERMAL or F.A.I.competition. Although the Quaker models are tough to trim out as a free flight, the ODGSON 2 9 0 4 sw CAM A N O DR., CAMANO ISLAND huge rudder is a real boon for modelers ESIGNS WASH. 98292 _ _ _ (206) 387-7412 who want to add a black box to their mode of flying. Believe it or not, this little box has made the Quakers quite ψ REPLICA OLD TIMERS competitive in the Texaco and Antique FREE FLICHT OR RUDDER ONLY R/C partial kits ^ Events. There is nothing wrong with a .020 CAS OR ELECTRIC POWERED FU LL K IT S Quaker floating at 1,000 feet of altitude! THE Q U A K E R c , SAM ABROAD From 1936: Man! Have we got the news this time T h e FLYTn C QUAKER CZ 1 of SAM Chapters, members, and just 84" Span- $21.50 From 1937: plain modelers interested in old timers. Goldberg's 1940 Sailplane The QUAKER FLASH 6:13 Scale. 36" Span This writer can't say how pleased he is to 67" S pan- -$ 1 7.50 $14.95 find old timer activity constantly spread Additional ,020s: 30" Buzzard Bombshell. $11.95; Both are Rib. Tip. and Former Partial Kits. They 38" Playboy Sr.. $12.95. 31" New Ruler. .$13.95, feature Machine Cut and Sanded Parts. Full Size ing. 36" Miss America. $12.95; 36" Clipper MK II. $14.9S, Construction Plans («■ Megow's Plan), and Extens SAM IN GERMANY 36" Mercury. $13.95; 30.5" Ranger. $13.95. 36" ive Building Notes. For Free Flight or R/C. they Super Buccaneer, $14.95; 30" Request. $12.95; both meet all SAM FF and R/C requirements. The latest information from Gerhard 35" Twin Cyclone. $12.95. 36" Cavalier. $13.95. Everwyn, Cachsteiner 12A, D-8000 Mun- SERIES SO" OLD TIMER SO" WINGSPAN The 'LONG CABIN’ chen 82, West Germany, is that the SAM 78" S pan. Classic Cabin. Plan Included. POWERHOUSE. $39.95 1937 $20.00 Chapter there has taken off like a sky .09 TO .15 3 CHANNEL R /C rocket with over 60 members already. At your Dealer or Gerhard freely acknowledges the ™ w m m m m m o t add $2.00 per order, » for UPS. Ca. Res help he received from Dave Baker, who Sc 8044 Legion Piece, No 6. Midway City. Ca 92655 add 6% for Tax. has attained an astonishing membership of 350 for the SAM 35 organization in certainly looks like a winner to us. literally off the drawing board, as he won England. At the rate the German club is Photo No. 9 was taken by Harold on his very first time out. As can be seen. expanding, Gerhard thinks that perhaps Johnson (our unofficial SAM photogra Jack not only flies well, but turns out an there should be a major SAM organiza pher), of Minneapolis, at the recent excellent model. tion for all of Europe patterned after the SAM Championships at Taft. Seen is Tom Jella, who owns an aircraft service USA SAM organization. You never can Hammond, who has dropped gassies in company called “ Air Trails", is a terrific tell. Who is to say we might have an favor of rubber models. This one, of supporter of both free flight and R/C International SAM Championship one course, is the biggest favorite among all Assist old timer events. When it comes of these days? modelers, the Megow kit version of the time for a group of trophies or a special ENGLISH ECHOES 1939 Wakefield Winner as designed by perpetual tropny. Jack can always be This columnist has been actively cor Dick Korda. It is interesting to note that counted on. His “ Bent Prop" Trophy, responding with Ben Buckle, who he with the re-entrance of good rubber, put up for the Annual Texaco R/C con personally met and stayed with for the trend toward rubber powered test, is an excellent example of what he •several days during the last trip to models is quite noticeable in all parts of donates. England for the O/T Champs at Scul- the country. The trophy was made up of a propeller thorpe Air Base. Photo No. 10 is a shot of Jack Jella’s from a Piper Pawnee that had one of its During this time, Ben Buckle broached brand new Playboy Senior that flew propellers bent. With Walt Parker, a the idea of going into the old time plan business. This writer can well remember saying, "Welcome to the Poor House” . H A N D Y SANDING w ith Ben, however, was undeterred and con “ The tinued to add to his stock of plans. Early in 1981, Ben Buckle was a victim L ittle s t of the recession, and lost his job as an M iracle electronic engineer. Unable to catch on right away, Ben decided to go full time of the into the plan business. W o rksh o p” As ca n be seen from Ph oto No. 12, Be n .25 FOR CATALOG is with his everloving wife, Sheila, at a • Ever-taut, adjustable sanding fastening clip. typical English O/T Contest. Ben, not Patented locking principle . . Use with companion M ini-Strips taut with finger pull. assorted grits, wet or dry. Buy ready satisfied with the plan output, has gone • Fits into small and large concave made belts or cut your own (six belts into the kit business to augment his recesses. Over small and Targe beads from standard sheet). • Knife-edge sides — Sands close to ■ Sturdy construction. High-impact plas APPLIED DESIGN COUP. income. The photo further reveals he is right engle fittings. tic. Highest quality foam rubber. also selling balsa, accessories, and refer • Padded body — Conforms to variations Tough enough for heaviest 738 Penn Street in surface. hobbyist or householder. ence material. Many a manufacturer got Sandpaper saver— Makes every square El Segundo. CA 90245 .in ch usable. No waste with ingenious 20% SHIPPING & HANDLING started this way. Who knows, you may be looking at a future Keilkraft or Veron! 88 WHEN CONTACTING ADVERTISERS, TELL 'EM MODEL BUILDER SENT YOU! MODEL BUILDER step is to lighten the fuselage and put in DICK HANSON MODELS radio control. I have one of Frank s Sail planes underway as an R/C glider. That Our Flying Hippo 825 is pretty light on his feet.We should be plenty to keep me out of have supplied a number of these to active competition trouble! fliers.internationally as well as here in the U.S.A. "Hope to come to the States this The new 750 sq. inch Tipo also gets around. According summer and drive from Los Angeles to to the feedback we recieve.both types are doing Salem, Oregon. Hope to take in the extremely well at local,regional and national contests. scenery and pop in to say hello." Custom built airframes of these and other winning To receive letters like this is simply designs is still our main business but we are adding great. Best part about it all is that ‘‘once a kits this year of the Tipo's and two new designs— modeler, always a modeler” . Just hope I The Formula 750 and the "Cheep Trick" A 625 sq. am home when Bill comes by. inch rear exhaust 40-46 Bird. THE WRAP-UP This time it is with distinct pleasure I If we can help you too-Call or write- present a write-up on the Taft O/T DICK HANSON MODELS Nationals as written by Jack Abbot of "Hippo" Tee shirt with each order shipped 5269 h j q k Y CLOVER LANE South Africa. It is truly astonishing to see Phone: (801) 261-1402 MURRAY. UTAH 84107 how the modelers viewpoint is the same regardless of where he comes from. This AUSTRALIA ANCIENTS of Dec. 10, 1981. John, I designed the is a direct transcript. Jim Palmer, of Lot 25 Palmers Road, Redbird close to 50 years ago and don’t Various constraints had to be con Caniaba N.S.W., 2480, Australia, sent in recall where the full size plans might be. sidered when trying to organise the several photographs taken of two mod I will go back to Modelair for whom I Sprinkbok Soaring Team’s transport to els that were built during the early years worked at that stage and see if by any Sacramento. Finance, SAA flight sched of WW-II. These models, built by Joe chance they have the plan filed away. I ule, Independence Day, were among Habib of Lismore, were left hanging am enclosing another copy similar to the the factors which were listed on a voting under a house when the builder went one Frank Zaic sent you. You might be paper circulated to the team. The demo off to war. When the war was over, Joe able to have it photostated up to original cratic result of the voting had the Team Habib decided not to come home. Jim size. Manager scurrying off to the travel came across the models and has volun "Those days when we sent models to agent, as there was now just a chance of teered to restore them for possible the States for you boys to fly by proxy attending the last of the three-day Old hanging in a museum. have resulted in some life long and most Timer Nationals at Taft. Of the two models, the larger one (as treasured friendships. Vern Cray, I see And so it proved. A few hours chang can be seen in Photo No. 13) is equipped from time to time (Bert Pond will like ing planes in New York, and then a with a Brown Jr., while the smaller has a this). Vern has just retired and is talking couple in San Francisco, getting the Baby Cyclone in it. Joe, and his brother of more model building. I visited Frank team into a wagon and pointed in the Habib Habib, were very well known Zaic and Ed Lidgard on my last trip to Los general direction of Sacramento. Any throughout Australian modeling circles. Angeles a few months ago. Through weariness from the many cramped Starting with designs like the T-D Coupe, strange circumstances, I caught up with hours in airplane seats was dispelled by they constructed larger models such as Carl Goldberg again and when in Wash the shock engendered by the price of the 10 foot Brown Jr. powered model. ington last October, I had a telephone the whiskey and soda dispensed at the Jim has kindly offered to work up conversation with Bill Winter who I airport bar. This sobering experience plans on these two ancient crates. This hadn't seen since the war. kept me wide awake on the flight to should be of interest to all old timer "I started (lying before the war, spent Bakersfield and fortunately I was still enthusiasts! Hope Jim doesn't lose his seven years in the Air Force in Euopean sufficiently alert to tackle the problem of enthusiasm! and Pacific theatres of operations, then driving on the right in the dark in an NEW ZEALAND went into civil aviation. I flew as a America n car. I emphasise the American, Recently received from Frank Zaic a captain for Air New Zealand till I retired because having driven three different reduced drawing of the "Red Bird” , as from flying in 1971. Then spent 10 years examples, I remain baffled by the para designed and built by W.B. Mackley,310 in the office, retired, and was recalled dox that a nation that produces such vile Hurstmere Road,Takapuna, Auckland 9, last year. Finally retired just last week! automobiles can be so successful with N.Z. This columnist was not even aware "Have several models underway, a moonshots and Mariner space probes. that Mackley was alive, and in response C02 job, not very successful. Motor With the concept of jetlag firmly to a letter of inquiry, received the fol doesn’t want to run more than 10 sec banned from making itself known, it was lowing correspondence: onds. My electric model was incredible! up early next morning to experience "I was delighted to receive your letter (As can be seen in Photo No. 14.) Next another distinct problem in the U.S. of A. .. . finding breakfast before 9 a.m. Eventually the Pinto was pointed towards Taft, reached two hours later. This inter MOVING TO SOUTHERN CALIFORNIA? esting oil town was still firmly asleep and only consented to start stirring at 9 a.m. MAKE SURE YOU GET A HOME The local traffic cop, the bank, the shop WITH A MODEL WORKSHOP ! ! next door, the garageman did not know where the most famous model flying FOR ALL YOUR REAL ESTA TE NEEDS, field in the World was located! Eventu CONTACT ally I was directed to the State Trooper’s ANITA NORTHROP headquarters and he (large hat, sun glasses, leather legs and all) gave me the necessary directions. MIS Taft field. A square kilometre of flat, NORTHROP bare, baked, gritty soil surrounded by low rolling scrub-covered hills with Inc. horse-head oil pumps plunging away, Real Estate and all shimmering under a blazing sun in a cloudless sky. Summer in the Central 621 West 19th St., Costa Mesa, California 92627 ( 714) 642-5062 Valley of California is dominated (away 90 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER from (he irrigated areas) by two colours . .. straw-yellow and deep blue. The deep blue sky was being continu ously invaded by the nostalgic shapes of well remembered aircraft and, because Soldering Tools of the continuous distraction, it took a little while to locate our Fearless Leader, )ohn Pond. A great welcome, which continued for the rest of the day. Un Model 1200 delivers characteristically, I would just stroll up 100 watts, heats instant to a group co-operating in getting an ly. Two tips included. Model 900 delivers 60 ignition motor to run and introduce Model 1200 myself as a nut from South Africa. And watts. And Model 300 delivers 30 watts. Great they accepted me as though I had been a Model 900 for all soldering jobs. friend of theirs for a long time, and Send 25 cents for cata immediately got down to the important log and price list. K & S business . . . exchanging views on Old Engineering, 6917 W. Timers. 59th St., Chicago, Illi After a couple of hours, the well- nois 60638. Telephone: known South African thirst made itself Model 300 312/586-8503. felt and I looked for the refreshment centre. None. None? One side of the field was flanked by cars with caravans in tow or by recreation vehicles, all with their air conditioners, fridges, tee ma chines and deep freezers humming away. There is no need to supply a re freshment booth .. . a// Americans are over-equipped. My inherent shyness making itself felt, there was no way that I was going to spend the day begging drinks from people who, had they "ANOTHER GREAT WINDER" known my predicament, would most certainly have been completely open- hearted about keeping me lubricated. I was miserably contemplating the neces List $56.25 sity of getting into the oven-heat of the Plus shipping Pinto and driving back to Taft, when I BARON SB (As featured in June 7 9 Scale R/C Modeler) was introducéd to Englishman Ken PLANS BEECHCRAFT BARON MODEL 58: 2Vj Scale-85 Hinton who, with his charming wife, had wingspan-1000 sq in. (3) 3 x6' sheets $15.00 attended the last three or four Old JOHN MORRILLS "SIDEWINDER" Beechcraft Fin Insignia .. $2.00 BEECHCRAFT BONANZA A36: 2H Scale-86 Timer Nationals simply because he Precision Built Heavy Duty Winder! wingspan-1300 sq in. (3) 3*x6Vi* sheets S17.50. knows of no better way of spending a All plans have easy to read isometric details and come rolled in a deluxe mailing tube Add $1.50 for postage vacation. $1.00 FOR CATALOG Eyes twinkled at me from a bearded Overseas postage $8 00 Ala. res add 6eo sales tax face: "Are you thirsty?” JIM CROCKET REPLICAS BUD CADDELL 1525 Badham Dr.. Dept. M. Birmingham. AL 35216 "Yus" I croaked. P O. BOX 12600 205 822*4312 "What would you like . . . coke, FRESNO. CA 93778 DEALER INQUIRIES INVITED beer...?’’ Two quivering hands reached into the Assist section was busy with Texaco .. . clock, and everyone disappeared for proferred coolbag, broached the ice- you are given a miserable quantity of siesta before the prize-giving dinner. I cold can and poured. But even as the fuel related to the weight of your plane wandered into an ice-cream parlour and throat lining relaxed under the stream of ... and that’s it. Stay up as long as you discovered one of thedelights of Ameri passing liquid, the taste buds recorded a can. The other half of the field was can life . . . they placed garlanded nagging doubt .. . this is beer? A later finishing off free flight gas and scale. To mountains of ice cream before me and I can of another make confirmed the my disappointment, the rubber events put it all away! disturbing diagnosis being simultane were over, but it was sheer pleasure to At the cocktail hour before thedinner, ously realised hundreds of kilometres watch Sal Taibi tweak his motor to full I found that the price of drinks served in away in Sacramento by the other three revs as a " Taft trashmover" approached, unpretentious surroundings could be team members. Was there a potable and launch into a soaring climb which quite reasonable, and it was fun to mix American beer? It took us days of continued right on up when the motor with fellow beings who make and fly Old experimenting to find an acceptable cut. Sal and son leapt on a scrambler and Timers for the pure enjoyment of it all. beer (you see, a lengthy period of ac headed for the hills while the model Overseas visitors were individually in climatisation isnecesary), and eventually disappeared overhead. To my astonish troduced at the dinner, and loudly " Bud Weiser" was elected as the sixth ment, they returned with the model half acclaimed by the gathering. But one member of the team. an hour later. You can’t teach that man look at the triple row of trophies ex But this is not to denigrate Ken’s nut tin ’! tended for 5 metres, and I resolutely left hospitality. After all, he didn't make the Silk and tissue covered models were at 9 p.m. to fight drowsiness on the drive stuff. For the rest of that day, I was fed rare, most of the R/C Assist models back to Bakersfield. Once in the motel, I and watered by the Hintons. They had relying on predominantly transparent surrendered to jetlag and tomorrow a had exactly the same experience when plastic film. In amongst the modern Greyhound driver would be responsible they attended their first Nationals, and glow-plug motors were a sprinkling of for getting me to Sacramento, while I had quickly divined my predicament. Ohlssons, Andersons, Cyclones, with slumbered on. Thanks, Ken. Hope to meet you at a modern ignition engines like the 77 Going over the team expenses later, I future Nationals. Special and Simplex. found that that one day at Taft had Cost Most of the events had been com The competitions petered out about 3 R550 and it was worth every cent of it to pleted in the first two days. The R/C p.m. as the temperature went off the enjoy the great camaraderie, and to MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 91 landing on the first time and also smoke CONTROLLED the model into the pit-person anyway, INSURANCE FROM so with the practice they already have, a shut-off to kill the motor at that critical YOU'RE IN GOOD HANDS WITH A ... «R am ODELS INC. instant and an excess amount of air 4736 N MILWAUKEE AVE CHICAGO IL 60630 USA speed for insurance, shouldn’t have any BATTERY BACKER #RE0 09. Senses low or intermittent voltage from the primary RX battery and switches to trouble at all in hitting a huge trailer, a 100 milliamp or larger backup battery, then sounds an audio alarm. Eliminates the most common cause they work to much tighter areas in of radio failure Backup battery and switch harness are required 1V«"x V x %' plus beeper V x V x V contest flying. The Speed Folk might Total weight 1 oz $3995 have a problem, but as there are only DUAL SERVO SETTER UREO 10. Senses loss of radio signal or low battery and moves TWO servos to a pre seven or eight of them left anyway, selected position Connectors required. ť /Γ x 1 V x V Weight 1 oz. $39.95 AUDIO BATTERY ALARM UREO 11. Can be easily installed in either the RX (4.8 volt) or TX (9.6 volt) system landings (and dolly retrieval) are their Senses low battery voltage and sounds an audio alarm. V x V x V plus beeper V·" x V x V Total problem. The lightly loaded, by design, weight 5 oz $19.95 models are what would be fun. Ever see GO BOX #RE0 IZ. Superbright red and green LED s tell you whether your RX (4.8 volt) and TX (96 volt) anybody wind-fly? That’s where you do batteries are ready to "GO" Connectors required. 3" x 2 V x V . $24 95 lazy eight’s downwind, after the motor AUDIO FLIGHT TIMER UREO !3. Dependable, solid state, can be set from 37 seconds to 20 minutes. Flick a cuts. It’s a little like flying a kite that you switch to start and stop. 9 volt battery required. 3" x 2 V x V . $24.95 IF UNAVAILABLE LOCALLY. ADO $1.00 FOR DIRECT ORDER. NO C.O.O. SENO S.A.S.E. FOR INFO. can control and takes not much wind at all to do successfully. Riding on the back of a tractor/trailer rig flailing along at 70 realise that in the jungle of life, there are per, it would be very easy, any decent some pockets of sensible people who flier would be doing vertical eight’s, can make common cause to have some square loops, square eight’s, might even COVERUP! fun! be able to sneak in some really tricky Sturdy, high quality, rich dark Columnist note: I’ll say amen to maneuvers. For the actual landing, with green vinyl-covered binders for that!! · the rig slowed up some, the model could your valued copies of MODEL be floated right into the hands of a Control Line . . Continued from page 57 catcher on the other truck or flopped BUILDER Magazine. Gold let down on a pad erected on the top of a tering on spine and front cover. following truck. middle and all. Those guys are doing it, Say, maybe there is something there let’s you and I go out and do it in the to fool with further. The RC guys have to road, too. AM A-sanctioned event, right? stop for fuel, but if we wind-flew a CL Picture is in the AMA magazine, right? model, we could do the whole trip non It must be ok and only fellow rockers will stop! Yeah, that’s it, in addition to the fully understand the third sentence Cross-Country CL Contest and What- back, in case you don't. And what are You-Can-Do-I-Can-Do-Better Bazaar you doing, sitting there counting out the and Fashion Show, we’ll challenge them sentences!? RC ducks to a real cross-country race. But maybe I’m wrong. What if doing No namby-pamby rally scoring; first one something, anything cross-country is to get from the Atlantic to the Pacific really worthwhile and it must be if our wins and for every mile the caravan AMA gets so involved? OK, I’m wrong (I drives, the model must be flying. We know I’m not, but this is just pretend, build a stout (but light) model that you know?) Anyway, here is the promo would probably end up looking a lot like tional vehicle of all time. And here we a Combat machine. It would be carefully are with an event, dear ol’ CL, that streamlined, of course, to the point of obviously needs some promotion, as it is building a pod that would contain lead holding its own well enough, but is not (for balance purposes only) and this pod seeing the growth it is capable of. would be attached where the normal One B in de r...... $5.95 I know you’re ahead of me already, Three Binders . . . $15.95 motor mounts are located. The motor Cross-Country Combat, right? Sure, but itself could be a small one and mounted Five Binders .... $25.95 let's really do this right, let’s have a on a strapped-on power pod, much like (For more than 5, include Cross-Country CL Contest. Let those RC glider guys use. It would be rigged to $5.00 for each additional guys fly foofers across the U.S. Let’s go drop off at the first full-blown control them one better by using for-real, go- binder.) movement, so we could leave Atlantic fast, turn-tight, fly-smooth, start-quick, City with a model being powered, at Shipping: Binders shipped in U.S. land-short, look-pretty, iight-weight least for the initial launch, by an engine. by UPS only. For one binder, add (just wanted to see how many hyphen About the time the RC guys quit laugh $ 2 00. F o r each additional binder, ated words I could sneak in), equipment ing at us, Hero Pilot would snap in with for the tens and tens of spectators that full-down, jettisonning the power pod add 75 92 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER to get out of Virginia, we could be playing in the surf at San Diego or relaxing before having Charlie Johnson show us the sights. Cripes, we could hire a fast boat, wind-fly to Hawaii and back before the RC Team showed up!! Yep, guess I was wrong after all, the f R C H l AMA has once again shown us the way to True Universal Acceptance of Toy Airplane Fliers and Accompanying Toy Airplanes. All we have to do . . . is to do it. I can see the headlines now ... IT’S NOT CROSS-COUNTRY, BUT... ANNOUNCES The ’82 Northwest Regionals will be THEIR COMPLETE LINE OF PERFORMANCE yet another super CL contest in a very long line of truly outstanding CL meets ACCESSORIES FOR held in Eugene, Oregon. Usual time TAMIYA OFF-ROAD VEHICLES slot. Memorial Day weekend, May 29 NOW IN STOCK FOR IMMEDIATE DELIVERY and 30, to be exact. Contest site is right next door to the Mahlon Sweet Airport, Numénum Wheels - Brass Gears - Dual Shock Mounts - Skid Plates for those who want to fly in, and every Special Torsion Bars - Aluminum Chassis - H. D. Steering year a number do. Most every CL event will be held. In Available From: Racing, they will have Rat, AMA Slow Rat, Goodyear, Mouse I, Mouse II, HOBBY MARKETING Northwest Sport Race, and Northwest 657 West 19th Street Super Sport Race. Combat events are Costa Mesa, CA 92627 Fast, Slow, FAI, and 1/2A. Speed fliers Oralers 4 Qstnbutors mqunes welcome (714) 646-9273 are offered 1/2A, A, B, D, Jet, FAI, and Formula 40. Carrier events will be Pro file, with Class I and II combined. In Stunt there will be two PAMPA class panel joints. Next time out, the climb O l d groupings. Even Scale is represented, trimmed out very nicely, but it wouldn’t Try aZ*nPE” with AMA Precision Scale and Profile flick off the top into the glide. It was " m o n o c o u p e Scale. If none of these events fits your realized that rudder offset for climb turn present equipment, how about Balloon had now almost doubled compared to Bust? Yes, they have that, too! forward fin, leaving little rudder move Of course, all of this is supplemented ment for the pullout. Rudder area was by various side-line activities .. . for increased by 50% to overcome this instance, there is a very good chance problem, the resulting tight glide circle that Oba St. Clair, inventor of CL model being countered by tail tilt for left turn. ing in the U.S.A., will be there with all Performance was now 20 seconds up on manner of amazing things, including 'fin on the tail' due to more height JTk MCH WWGSPA* very early CL models and his have-to- gained on the climb. After flying it (or It's for Rubber, ond CO, ... »» $14.95 see-it-to-believe-it ground-based CL awhile, it was apparent that signs of Proved to be o Winner with an .010 engine I trainer. For more information, contact insufficient fin area had reappeared Dealers & Distributors Invited Mike Hazel, 1040 Windemere Drive (presumably because the fin operates in Send 50c for Flyline Models' Catalog (703> 573-2038 N.W., Salem, OR 97304. Or call (503) disturbed air behind the tailplane) and fin area was increased again. Flyline Models, Inc. 364-8593. · 2120 Dorr A«·. (1-11). Folrfo«. Virginia 22011 U.S.A. PRO 1) Best duration of the three layouts Free Flight. . . Continued from page 63 tried. The fin-on-tail layout is not much infe 2) Best handling; i.e., easiest to launch rior in performance, the difference which would be safer for the first flight. 3) Climb faster/steeper and generally being due to slightly less height gained Wrong again! The first flight was more stable on climb, presumably due to higher similar to that with, the fin on the 4) Most consistent power pattern in tailplane drag. The practical points tail plane model; i.e., tight right at the windy weather (less tendency to go over against it are the need for tailplane keys, start and very under-elevated. Sub-fin the top in heavy gusts). the difficulty of packing, and integral area was increased to cure the right turn CON fin/tailplane assembly. The 30 second at the start, and more incidence added 1) Short on roll, requiring more wing performance difference between fin on progressively. One-eighth inch (+1°) warp the tail and forward-fin would be much was required to get the climb right, 2) Extra warp should mean worse glide less with current VIT models, but the necessitating the addition of lead to the (but not apparent) forward fin model would still be a bit nose again to cure the glide stall .. . 3) Requires more rudder offset for down on height gained, again due to There was also a marked reluctance to power turn (inherently less safe) tailplane drag. roll, the model tending to 'wingover' Of course, the main advantage in the To avoid the need to adjust fin area to rather than roll-out when slightly over days before VIT was the ability to handle get an even power turn, it was realized elevated. Any further increase in tail- much higher power without recourse to later that the same effect canbeachieved plane AR being undesirable for struc funny tailplane shapes, etc. This raises by adjusting the tailplane incidence tural reasons, the only cure for the lead the question, 'Is this still important with relative to the slipstream. If the model in the nose was to lighten the back end. the now universal use of VIT? The tightens up under power, reduce inci A new tailplane was constructed and answer is that it is less important, but still dence of both wing and tail by the same weight reduced by just over 1/4 oz. The offers some advantage in that this layout amount. If the tendency is to barrel roll only cure I could think of for lack of roll flies with a higher wing/tail incidence or go left towards the end of the climb, was to increase the wing warp, so a difference and is therefore inherently increase the incidence of both. further 1/16 in. was added, giving 1/4 in. more stable. The climb is steep with the (To be concluded next month) on an eight-inch chord at the outer tail up because more lift is generated. SOME SUGGESTIONS FOR PAYLOAD M A Y 1 9 8 2 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 93 cease, the Payload rules would already OVER 50 CONSECUTIVE STARTS WITHOUT RECHARGING contain a safety ‘bailout clause'. . . the INTRODUCING THE .049 regs. Sure, we could simply add NIST ARTER “ 1/2A Payload Gas as a separate entity, PAT PENDING leaving .020 on the books, or delete .020 A new and completely revolutionary concept of p o w e r for glow plugs in model cars, boats, air in enchange for Ί/2Α, but wouldn’t it be planes. helicopters, anything using the 1.5 vt. fun to see how this combo might com S ta n d a rd plug for glow engines Rechargable. (up to 1000 times) Fits in your pocket. Works pare competitively? Whatever the even sideways or inverted. Fits through cowlings. Uses tual conclusion, we can 'fix the problem H e a d L o c k ™ plug adapter. Stays on the plug, not in the propeller. Incl. charger & instructions in the next two-year rules cycle. ’ What 90 day guarantee. After that, if anything fails say, you all? Rules Proposal time is soon (normal usage) we will repair or replace it for only 56. for up to one (1) full year!!! SEE YO UR upon us again. . . do we submit a formal DEALER OR CALL US - BANK CARDS OK. COD OK. YOU PAY SHIPPING suggestion?’’ $ 1 9 .9 5 I think Harry's got a good idea here (as See Your Dealer a matter of fact, it's the same suggestion I 3506 Glendunee Dr made back in 7 964 when Payload was re Herndon. VA 22071 instated in the AMA rules after Pan Am dropped its sponsorship of the event.)· SERVICE (703) 435-5805 In a recent issue of the CIA Informer, Cox .020 is a fine little engine, some Harry Murphy wondered in print about consider its power to be too puny to be Soaring...... Continued from page 27 what to do to those events in the AMA ‘manly’, and some may even log it into rules book for which support was weak the 'contrary'category. Those occasion the ceiling. “ There’s the original, the or virtually non-existent. Rather than al rumors . . . whether true or false prototype Windfree that won the 1970 suggesting the abolishing of some events . . .that Cox may cease production of the SOAR NATS. You’ve seen that very which have been in the book for years engine, probably do nothing to increase plane in hundreds of ads and on the without gaining any real popularity, activity either. So, what medicine can be cover of Model Builder (March, 1973). Harry made some suggestions for “ revi possibly suggest? “ What’s it worth?” someone asked. talizing” one of them, Payload Gas. As "Well, suppose we simply upgrade “ I don’t know. It’s in good shape and he says: the event to include .049 engines and would fly well with a radio installed . . . "Those of us who participate in the increase the wingspan limit to 48 in., and but it’s worth much more than that to current event consider it to be quite increase dummy weight and size to the me.” challenging and 'lotsa fun’. Many who old Pan Am specs, etc.? The pro com "Well, how much?” do not participate admit they like to ments should include that .049 engines "I give up. What would you offer?” follow, observe, or have future inten are more plentiful and more flexible for And so we had a fictitious auction that tions of participation. As one of the use in other events as well, more de started me thinking. After they left, I promoters for initial adoption by the pendable, more power might increase looked at some of my other planes. ΑΜΑ, I once thought it to be an ideal participation by those who currently shy Some I fly regularly. Their value is in beginners event, however, apparently away from the .020 and many currently their utility. Others I fly rarely .. . but I the beginners don’t think so as few obsolete Ί/2Α models could be retrofit may come to fully appreciate them again novices are found among the current ted rather quickly to comply with the sometime in the future. Some are of active participants. Whereas the annual rules of the event. value because they’re "classic” ; others Nats event is always hotly contested, "To better evaluate the assumed because they’re "out of print.” little local activity is apparent for the upgrade and to prevent obsolescence of I began to realize that the overall remainder of the year. What, then, may those models already built, suppose the value of anything is a composite of its be some of the problemsi .020 rules are retained in direct compe utility and scarcity. The plane you use "It has been my experience that any tition with the new.049 size? Would this day after day is high in value because of negative comments directed at the not 'rejuice’ the event without much the great pleasure it provides . . . its event appear to center on the .020 damage to present man, model, or utility. The value of a collector’s item engine size requirement. Although the machine? Also, should .020 production depends on its rarity. In general, an item l»C modelle Flug Schiff Auto the lively model magazine Made in Germany by Erich and Elf Rabe Your hot link to the European Market Full coverage of model activities from the European and formulas speak to you with their own language. Continent. Plenty of new developments, experiments, Monthly. Ask for a 1-year’s-subscription. Send your new models and equipment. A variety of plans and cheque (US-$ 32,-) and you will find RC MODELLE 12 photos. No German required. The sketches, pictures times a year in your mailbox. Please send your order and cheque to: RC Modelle, Grundstr. 40, D-7022 Echterdingen 3, West-Germany. 94 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER is of greatest value when it is both useful and scarce. I value my Grand Espirit, not only because it flies well, but because it is now an "endangered species.” You can judge the utility of each of SCALE WHEELS your planes on a ten scale: 10 if it's RADIO CONTROL · CONTROL-UNE · FREE-FLIGHT always useful (you fly it at every oppor tunity); 5 if it’s moderately useful (you fly it, say, half the time); and 0 if it’s unflyable. Similarily, you can judge scarcity on a ten scale: 10 if it’s one of a kind; 5 if it’s not uncommon; 0 if everyone has one. But, adding these two measures of worth is an oversimplifica tion. Utility and scarcity may not con tribute equally to overall worth. Some people are prim arily collectors. The VINTAGE SMOOTH GOLDEN AGE NEW CONTOUR philatelist judges the value of his collec sizes: 2·/,” sizes: 2Vi" BALLOON tion in terms of the scarcity of each %" 3 Vi" Vi" 2%" Vi" 3 Vi" stamp. He cares little about their lack of 1" 35/«" 1" 3 Vi" 1" 3y4" 2Vi" 4Vi" direct utility (beyond the pleasure he 1‘A" 4%" 1 >/«" 3J/«" 1V1" 4%" 3*/«" 5 Vi" receives from mounting, viewing, and lVi” 5" I Vi' 4 Vi" l ‘/z" 5" 3»/«" showing his collection). And there are I 7/." 6y," 2V4" 5·/«" i 7/." 6 Vi” those whose only concern is utility. If given the original Windfree, they would SCALE PILOTS ■ CYLINDERS · ENGINE KITS fly it to tatters! MACHINE GUN KITS · PLASTIC DISPLAY MODELS To find each plane’s overall worth, SEND $ 1 . FOR COMPLETE ILLUSTRATED CATALOG first estimate the relative importance inc- ^ , DEPT. MB *181 PAWNEE ST.. SAN MARCOS, CA. · 92069 you place on utility and scarcity. To what degree are you a builder/flier? To what the various kinds of contests. The book degree are you a collector? Here again a also contains a Glossary of terms com BROWN A-23 CO-2 ten scale is convenient. If the impor monly used in our sport/hobby. All in TINY PEANUT CO-2 ENGINE tance to you of both flying and collect all, here’s a fine book. I take my hat off to 3/4 ing are both zero, why read this article? Al for a job well done! COMPLETE CATALOG S/.00 If both are ten, you’re probably torn by Every soaring enthusiast should read PHONE (714)469 8675 or 442 4636 the desire to fly that fragile museum and reread Model Aircraft Aerody Peck-Polymers piece just one more time. Most of my namics by Martin Simons, Model and BOX 2498 MB LA MESA. CALIF 92041 flying buddies place a higher weight on Allied Publications, Argus Books Lim utility than scarcity. Now to find the ited, 14 St. James Place, Watford, Hertz, rarely important in practice." value of each of your planes, multiply England. This book is crisp and concise, For more casual reading I recommend the importance of utility to you by that easy to follow, and eminently practical. Incredible Machines, An Anthology of plane’s usefulness, then add the product For example, (from page 13): Eccentric Aircraft by Michael Jerran, of the importance of collecting and its "Gliders hardly ever need to fly at the Exeter Books, New York, 1980. scarcity. speed which yields the best L/D ratio See you next month. · To complete the story, include an or flattest glide. As a rule, they are either other factor.. . dependency. A drink is soaring or penetrating. When penetrat worth far more to the addict than to ing, a speed other than that for L/D max Electric...... Continued from page 34 those who casually sip and slurp. Here is needed, except in completely still air. again a ten scale is in order. If R/C For example, in making headway against good and looks right.” It has a lively soaring is only a casual interest, your a wind, if the model's best L/D airspeed manner in the air which is very crowd planes are worth very little. If, on the is 70 metres/sec., and it faces a wind of pleasing. At the other extreme was Tony other hand, you are a devotee, the same slightly more than that speed, flight at Naccarato and Addie Naccarato's quar planes are worth an awful lot. To take best L/D will cause it to move backwards ter scale Farman Moustique, powered this into account, multiply the utility/ relative to the ground. A higher speed by an Astro 035. A quarter-scale that scarcity worth of each plane by your would enable some forward progress to weighs 23-1/2 ounces! It was flown degree of dependency on this hobby/ be achieved, albeit at a higher rate of indoors at the IMS show, Pasadena, the sport. If you’re an addict, don’t be descent. In addition, between upcur- previous week, and is an excellent bashful. Multiply by ten. rent zones, thermal or hill lift, there is indoor flyer. Outdoors, it practically Here is a way to compare the value of almost always sinking air. A detailed hovers! Tony did a four-minute flight in the different planes to different people. analysis of the behaviour of sailplanes in a total length of about 200 feet, one pass Now I understand why I treasure that such conditions is to be found in most up, one down! This was a crowd pleaser, original Windfree and, at the same time, books about fullsized gliding, but the too, because of the slow motion flight. greatly value my Legionair. modeller does not have the benefit of In R/C pattern, the big impression was ★ ★ ★ instruments and computers in the cock the smooth, powerful flights by the 05 If you're a beginner or simply want to pit to tell him what his best speed to fly pylon racers. These are fast, and capable update your technique, you ought to should be. As a very rough approxima of good vertical maneuvers. The overall read the Sailplane and Soaring Manuel tion, the model might achieve best impression is that you are seeing a much by Al Doig, R/C Modeler Corporation, results on many occasions by flying bigger plane. Tony Naccarato’s pattern Los Angeles, 1981. With a broad back between lift areas at about twice its plane, powered by an Astro 40 samarium ground in engineering. Al now devotes stalling speed, and faster still if it needs cobalt motor, used the other approach; himself to R/C soaring. This book takes to make ground against this wind. This a light wing loading for slower, and very you through the construction of an requires efficient, low drag aerodyna smooth, pattern flight, much like the Olympic 650, a plane that flies well and is mic design over a wide range of lift U/C pattern type flying. This made it easy to handle. He then offers some coefficients, from, perhaps, Cl = 1.0 very easy to see every detail of each basic aerodynamics, describes launch down to Cl = 0.2 or 0.3. While the best maneuver, much like the philosophy of ing equipment, and how to test, trim, L/D ration remains a useful indication of the Las Vegas pattern champs. The and fly your sailplane. He then indicates a model’s all around efficiency, it is vertical capability of the plane was M A Y 1 9 8 2 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 9 5 u u * ä * ■ « r a i l ■ lo b b y H o r n δ « · bo bln iftitehm ^ WITH THE CO-OPERATION OF CHANNEL 11 OLD TIMER KITS. (FuU end Partial Kit·) P i W Semi-KitM--Rib Tip. and Former Kila 1941 Playboy Jr. 54” Span (Plan Extra) $14.50 Plan--|2.50. Companion Stripwood “Kit” --$13. 12 Combination Playboy Jr (all above items)-$28.00 BURLINGTON 1941 Playboy Sr.. 80” Span (Plan Extra) $19.25 SINCE 1970. CANADAS LARGEST Plan--13.00. Companion Stripwood ”K it”-· $26. 30 Combination Playboy Sr (all three item ·)-$45.00 1939 Zipper (Comet). 54"'Span (Plan Incl) $33.00 Companion Stripwood "K it”--$15.72 Combination Zipper (Both above itema)--$45.00 1937 Dahalre Sportster. 108” Span (Plan EX) $26.00 Plan $5.00. Companion Stnpwood "K it"-$30.00 Combination Dailaire Kit (all three Items) $56.00 1938 Powerhouse. 84" Span. (Plan Extra) $21.00 Plan- $4.00. Companion Stripwood "K it"-· $17.70 Combination Powerhouse Kit (all 3 above) $39.00 O th e r co m b ina tio ns a v a ila b le - 1938 B ucca n ee r,$4 9 .00 1938 C lip p e r MK I , $38.00. 1939 M e rc u ry . $55.00. 1935 Miss A m e rica . $59 00. 1940 R a n g e r, $27.00. 1940 S ailplane $70.00. 1940 So L o n g . $26.00. 1938 T re n to n T e r r o r . $30.00. K orda Wake. $16.00. MIDWAY MODEL COMPANY ( Partial Kllsl 1936 F ly in g Q u a k e r. 84" Span (P lan I n c l.) $21.50 Companion Stripwood "K it” $31.40. Combination Flying Quaker Kit (Both items)$49. 00 1937 Quaker Flash. 67" Span (Plan Incl.) $17.50 Companion Stnpwood "K it" -$23.45, Combination Quaker Flash Kit (Both items) $38.00 1937 Long Cabin. 78" Span (Plan Extra) $15.00 Plan $5.00. Companion Stripwood "K it”-- $24.06 Combination Long Cabin Kit (all three)-- $40.00 MIDWAY MODEL COMPANY (Full Kit$) 1939 A ir T ra ils S p o rts te r. 50” . .10 .15. R /C $35.96 1938 Powerhouse. 50" Span. .10.15. R/C $35.96 1940 B u z z a rd B om bsh ell. 30" S pan, 020 $11.95 1940 P layboy S r . , 38" S pa n . .020 e ngines $12.95 1935 Miss A m e rica . 36" S pa n . .020 e ngines $12.95 1940 C lip p e r M K II. 36" S p a n . 020 e ngines $14.95 1940 New Ruler. 31" Span. .020 engines $13.95 1940 M e rc u ry ( S c ie n tific 's ) . 36" S pan, .020 $13.95 1941 Request. 30" Span. .020 engines $12.95 NELSON RECREATIONAL SHIPPING AND HANDLING 50 Page CATALO G UE Up to $8 00 add $1 SO. $1.00 PP (A co py w ill 4235 NEW ST. · BURLINGTON, ONTARIO, CANADA $• 01 to $20.00 add $2.2$. be sent free, upon $20.01 to $45.00 add $3 00 request, with an order) $45.01 to $70.00 add $3.50. Hobby Horn and over $70.00 add $4.00. P .O . Box 3004 CA Addressees add 61 Tax. Seal Beach. Ca 90740 COMPETITION FLYING CIRCUS f FOR ADDED Sand MO.V i m AIC (I* E x p ), ( 714) 894 6223|B est i) or CK. COD Exact Chg mornings or recorder FOR a w a r d s SHOW I ENTERTAINMENT IpSI^SO Hdl (Cash Only) activates on 5 rings) . MILITARY SCALE · by some of • CIVILIAN SCALE · CIANT 1 „ „ • rupL. HOVER - ROVER • a n t io u e m o d e ls * Γ ‘ HE AVRO ATRCAR STORY minute flights I mentioned in an earlier • SPORT PLANES · BI PLANES CANADA’S TOP column are really minimum flight times FLYERS SEE UFO'S FLY based on a four ampere charge for BEST TRADE SHOW BOOTH fifteen minutes, as specified in the instructions I got with the digital charg LOCATION er. As it turned out, I got one of the first digital chargers, and the instructions ADMISSION e x h ib it io n t im e s ] were for earlier models (non-digital). These instructions have now been up c$ 3 .0 0 SATURDAY 1 Adults dated to use the full capabilities of the RJOam - 600pm charger and allows quite a bit more studentsand ^ii^am Ajnop^ Senior Citizens flight time. I get eight minutes on the SUNDAY VISIT YOUR Astro Sport if I charge up to 9.8 volts (six C h i l d r e n , , T„ „mi - ^FTWr*??i,m J ^ io o am 600 4 J00Pm cell, 1.0 /ah G.E.) on a cold pack and LOCAL ΗΟβΒΥ SHOP ______then fly at altitudes up to 600 feet. This is FOR MORE DETAILED INFORMATION ~~ ------the worst case situation, as once the OR CONTACT: FRANK ANDERSON (416) 624 5922 DAYS (416) 276-5278 EVGS pack warms up, times should get better. In my Drifter, with three motor runs of about two minutes each, I can do fifteen excellent, and Tony would most likely I think Bill Stroman will cover most of minutes quite easily. Anyhow, as soon as have done even better than he did the free flight, so I'll keep it short on I get enough testing done, I will go into (third), if he wouldn’t try to fly with the that. The most outstanding mini-old receiver antenna wrapped around the timer I have ever seen was the Power this in the detail necessary for the sport receiver! After he had some glitches on house by Jim McMahon. This was pow flier, so that we all can enjoy longer his first flight, he found he had done just ered by an Astro 020, and was ^ p e r flight times, and hog the field (a new that! It does show how good radios are light. It had an excellent climb, and the experience for electric fliers!) now, and that motor noise in electric most clever timer, from a Tomy wind-up Till next time, build electric for spring flight is not a problem! toy, that I have ever seen. The cutest free flying! · Control line scale featured the beauti flight by far was Linda Cope s ' Garfield ful scale planes built by the Black Sheep Special,’’ piloted by my favorite grouchy Squadron, most from Guillows kits, and cat, Garfield. Garfield was a little over Peanut...... Continued from page 55 powered by the Astro 020. Lon Tar Diss’s weight, as usual, so he couldn’t fly very F4U Corsair featured folding wings, and high, but he had the right spirit! lightweight canopy. If these four ap well deserved its first place. These planes Well, enough, except for one last post proaches were taken, then a fifth would flew in the IMSshow the previous week, script. I had a chance to talk to Roland be necessary; the use of a lightweight with carrier deck landings (the deck is Boucher, at Leisure Electronics, about carved balsa propeller. neat!), which increased the drama powered flight times, and this will Construction follows standard prac considerably. appear in a future column. The six- tice in most respects. 96 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER The fuselage is constructed using two main side frames that are built directly Wilshire Model Center over the plans. These frames are shown 3006 Wilshire Blvd Santa Monica. CA 90403 828-9362 hatched for clarity. After they are com pleted and the cement is completely SOAR WITH THESE EXCELLENT SAILPLANES cured (build one of the other com AND POWER MODELS FROM WEST GERMANY ponents while the cement is setting), OR FLY SILENTLY WITH GEIST & CARRERA remove the frames from the plan and carefully separate one from tne other ELECTRIC POWER using a thin single-edge razor blade. CARRERA GEIST EISMANN Now add the cross pieces top and bottom, using the top view to determine ROEBERS GRAUPNER WANITSCHEK cross piece lengths. Check the basic Send $1.00 for folder on Geist Electric Right Systems (in English) frame against the plan for accuracy as it Send $10.00 for Carrera’s 216 page catalog, in color, their whole line is being assembled. of Sailplanes. Gas, Electric Models and Accessories (in German) Cut sheet balsa formers to the shapes shown and cement them in place at the proper locations and at the proper Visa & Master Charge Accepted slopes. The former at the front and the BUSINESS HOURS 10-5:30 MON-FRI 10-5 SAT CLOSED SUNDAY former at the back of the cockpit are not vertical, but lean away from the cockpit opening. The most forward former is RUBBER STRIP made from 1/16 sheet, all the others are Our New FAI RUBBER. Made in U.SA. made from 1/32 sheet balsa. SIZES: 1/4".3/16".1/8".3/32". The fuselage top and its sides and Expanded 1/16” , by 1mm 1042") thick. nunamtc ■ bottom forward of the wing is covered A # A# MODELS with 1/32nd sheet balsa. The top cover BOXED 16 ounces o f rubber per box. ing must be soft “ A" grain flexible balsa Catalog PRICE: $1200per box, postpaid sheet, while the sides and bottom, which is Ready! in U.SA. are flat or nearly so, can be stiffer "C " NEW PIRELLI grain. The use of thin strips of masking SIZES: 6mm, 3mm only, 1mm thick PRICE: $1800 per hank tape to hold the top covering to the We offer the very Best in Scale model and help bend the sheet is R/C Model Boat Fittings . . . (approx. 1/2 Kg.) helpful, and tends to minimize the Quality Fiberglass Hulls TIMERS: KSB. Fuel & D T : $11.50 ea. & Operating Accessories! chances of cracking the sheet where the plus 10% UPS. Our new 4tn Edition Dynamic Models Catalog — bends are very tight, like at the very back 56 pages detailing Fittings. Hulls. Hardware Sole U.S. Distributor and World W id· end. A small triangle of 1/16 sheet S3 00 »refundable 1st order) ■las. Sand 2 » for 1981 CATALOG. should be used to fill in between the nunamtc F. A.I. Model Supply bottom longerons at the extreme rear A # A # M O D I t S P.O. Drawer C. Port Jofferson Station NY 11776 O t PO BO>3»' TornUNCE CAM 510 end to support the tail wheel wire. Bend the main landing gear wire to match the and bottom. Cut two ribs to each pattern then carved to shape. shape shown in the front view and install except Number One. which requires Before covering the model, sand it all it in the fuselage structure. Do likewise three. over with fine sandpaper to remove any with the tail wheel wire. Build the wing directly over the plan. rough spots or other imperfections that The cowl cheeks are carved from soft Pin the bottom spar to the work board. would show through the covering. Then balsa blocks. Hollow them out at least as Support the 1/16 by 1/8 trailing edge cover the model with your favorite much as shown. Make a nose block 7/32 above the workboard over its entire covering material. The model in the assembly to match the detail drawing. length, and then cement the ribs in photos was covered with blue Japanese The cheeks are cemented to the nose- place. Now add the top spar and the tissue and the balsawood fuselage top, block to make an integral assembly. leading edge. The wing built in this cowl cheeks, and wheel pants were left Carve a balsa spinner and either fit it fashion will have about 3/32 of washout bare for the color contrast. The canopy to the propeller or use it for a mold and at each tip because of the decrease in rib framing was simulated with masking mold a plastic spinner for the model. depth towards the tips (as long as you tape which is a fairly good color match The tail surfaces are conventional remember which side of the wing was with the balsa decking. structures, built directly over the plan, built as the down-side!) Cut the wing The registration letters were white and then covered with 1/64th thick structure at the dihedral break, just decals and are imaginary, although the sheet balsa on both sides in the areas outboard of the outer Number One ribs "VH-” is correct for an Australian shown. After the assemblies are com and prop up each tip about 7/8 of an registered aircraft. pletely dry, they are sanded to a thin inch. This will require the removal of a Control surface outlines are black airfoil section. The sheet covering is very short length of top spar at the joint ink, and wheels and the bottom cowl thereby feather edged both at the ana an even smaller almost impercept inlet are painted with flat black paint. leading edge and at the spar. Note that able length of the leading and trailing A loop of 1/8 rubber is about the right the plan shows a scale tail thickness, but edges. Do this cutting carefully by the power for the model in the photos. · the model in the pictures has basic tail cut-and-try method. When you obtain structure before sheet covering only the proper dihedral and fit, cement the 1/16th thick, which is slightly thinner wings back together at the breaks. Scale...... Continued from page 28 than the plan shows. This deviation from When the dihedral joints are dry, scale was unintentional and is almost cover the leading edge back to the spars utilize our time. We will continue to imperceptable. (Much more percept- with 1/64 sheet balsa, using three pieces work on additional Saturday time, how able in the photos, I now note, is the lack for the top and three for the bottom. ever, there should be no problem of the small triangular dorsal fin in front The tips are carved from soft balsa running our four rounds. The static of the vertical tail . . . forgive me.) blocks. judging on Friday will require some The wing airfoil section on the model The wheel pants are constructed in hustle and real cooperation from the is symmetrical. It uses a top and a bottom the standard fashion, using a thick balsa competitors, but it will work. Therefore, spar, a leading and trailing edge stick, center piece cut out to clear the wheel we have compressed the schedule by and thin sheet balsa covering from the diameter and two 1 /16th thick side one day for Precision and two days for leading edge back to the spars both top pieces laminated into a single piece and Sport and Giant. Let me have some feed MAY 1982 WHEN CONTACTING ADVERTISERS. TELL EM MODEL BUILDER SENT YOU! 97 Saturday evening. Stead Airport (5,046 ft. alt.) is located 10 miles northwest of Reno (about 15 minutes from the Circus Circus Hotel). ψιυ ELwrnic This airport is the scene of the yearly Reno Air Races. The hotel is newly-built with large, air conditioned rooms, color VL-101 Electric propulsion system televisions, private bath, two double shown— using Hytork 48 motor and beds or one king-sized bed. There is planetary gear box, SJ-3 switch & even a safe in the room (for your casino charging jack, and B-33L fast charge winnings?). The meals are buffet break ni-cad flight battery— total weight fast anddinner. Lunches each day will be 2*/2 oz.— will power models 25 to provided at the flying site. 50" wingspan weighing up to 10 oz. It is shaping up to be one very special Send 50c for latest catalog showing event. For our family, personally, the hit full line equipment & accessories. V L PRODUCTS of such an event is the ability to meet Hobby dealers send for information. Division ot Vista Labs modelers from all around the world. 7871 Alabama Ave., No. 16 While there are subtle difference in Canoes Park, California 91304 some modeling and flying techniques, there is a general common bond which s makes being around them a thrilling YES -SIR, YE8 - 8 IR, THREE BAGS FULL ! experience. Contact AMA Headquart ers for the necessary forms. Do it now 4 - rf1 A v a i l a b l e A / o v u . . .there is a deadline, of course. Let's all gather in Reno for Aero Scale ’82. SCALE BREEDS SCALE It’s interesting to note how the success of one or two members in an area breeds JSArtlE- MUr*\e>ER o r FL/tAJS-SøunC. Pm.tea j newcomers to the activity. The KCRC WALT MOONEY NOW OFFERS 4-BACS OF PEANUT SCALE PLANS club in Kansas City is an excellent all well tested designs, at only fsoo each example of this axiom. For a good number of years, Charlie Reed and EACH BAG FEATURES FOURTEEN PEANUT PLANS. several other stalwart souls have fought one other, plus photos ano information the pattern wars. The enthusiasm gen SENO *1.00 FOR COMPLETE LISTING AND SAMPLE PLAN TO: erated by a few swelled the ranks to a goodly number of very active pattern WALT MOONEY, 2912 CABRlLLO MESA DR “ contesters” . When they hit the St. Louis SAN OlEGO, CALIFORNIA 92123 contests, there usually will be almost a r dozen ready to compete. In the R/C lunches, six dinners, and the banquet. arena, where you rarely find 10% of any Of course the site pass, etc. is included in club that is contest oriented, their VINTAGE R-C FLANS this. The rate of $270 per person is based percentage is high. Charlie and Pat even on double occupancy. Single occupancy married off their daughter to a pattern is $320 per person. nut who doesn’t do too badly. John Britt At the double occupancy rate, this has been known to fly a rather respec adds up to something like $38.50 a day table Masters pattern. 9 FT. WING SPAN per person for lodging and three meals, In the scale area, KCRC has had an ALL «IBS 8 FULL FORMERS SHOWN ON PLANS 11 plus the banquet. In this day of super “ old” timer in the form of Bud Atkinson. p l a s t ic e n g . c o w l s t 9.90 p r . costs, that is a hard price to beat short of Those of you who have followed scale CLF AR GUN BLISTERS ) 6 .6 0 PR a cave in Tasmania. Of course, in addi for 'many years will remember seeing •1 LARGE PLAN SHEETS — Plans $1695 tion to the flying events, there are many Bud’s name and pictues scattered 6 f t . WING SPAN MODEL PBY-5A attractive reasons to visit the area. Aside through the magazines forever. He ENGINE COWLS I 6.30 PR. P|QnS $ 12 95 from the local Reno attractions, such as really isn’t that old; he’s just been doing GUM BLISTERS t 4.50 PR ADD % 2.50 POSTAGE the Harrah’s Museum of cars and air it for a long time and he’s good. CATALOG-OVER 50 PLANS 11 00 DEALERS WRITE craft, there is the nearby Tahoe area. Top Len McCoy travels to the Tangerine in WORLD Q WIDE entertainment, silver towns like Virginia Florida and Tuscon for the “ Winter SID MORGAN City, the Ponderosa Ranch, are just a few Nats” and most things in between. 13157 ORM OND. BELLE V IL L E , MICH. 48111 u.S-A available sights. San Francisco is just If those two aren’t hard enough to hours away by auto through theDonner beat, KCRC has a member who goes by back if you wish. Pass, one of the most beautiful passes in the name of Tom Cook. I’ve heard it said THE BIG NEWS AERO SCALE ’82 the world. If you are a camping nut, that Tom has enjoyed a little bit of What are you doing from Sunday, you'll find many interesting places to success. You know . . . winning little June 13 to Saturday, June 19? How about camp among the tall pines. contest like the Nats, Scale Masters, etc. Aero Scale '82? The International scale Monty and Patty Groves and the with twin ducted fans when most fellas community will convene for their every- Underwoods are planning several other can't keep a single fan plane going. two-year event in Reno, Nevada and you special events. There is a good chance I don't want to miss one other name are invited, A supporter package comes that a tour of the Lear Jet plant, which is many of you may not recognize. I in several types. For $50 you receive a right on Stead Field, will develop. On guarantee, however, when you’ve flown site pass, program, patch, and banquet Saturday of the final day of competition, against him, you'll remember it. Fred ticket. For $30 you are provided the site the Northern California Antique Air Hulen has not hit the contest trail as pass, program, and patch. The full plane Association will be flying in heavy as the other three. As a compet supporter package is most attractive. It antique, experimental, and homebuilts, itor I sincerely hope it stays that way. He includes seven nights in the brand new weather permitting. They will make gets hard to beat! Circus Circus Hotel in Reno (completed their aircraft available for photosessions The point of all this is that the success late 1981) as well as seven breakfasts, six and will be present for the banquet of these men feeds on itself and it breeds 98 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER ADVERTISERS INDEX Ace R/C, Inc...... 67 Fox Mfg., Inc...... 89 R/C Modelle Magazine ...... 94 Aircraft Spruce & Specialty Co...... 66 Francis Smith’s Ship Yard ...... 81 RAM Radio Controlled Models...... 92 Al Alman ...... 78 Futuba Industries ...... 3 Sailplane Factory, The ...... 83 American R/C Helicopters...... 87 Dick Hanson M o d e ls ...... 90 Satellite C ity ...... Cover 3 Applied Design Corp...... 88 Hayes Products...... 79 Scale Olympics ...... 104 Associated Electrics...... 4 Hobby Horn ...... 96 Sig Mfg. Co., Inc...... 5 Astro F lig h t...... 68 Indoor Model S u p p ly ...... 102 Smith Plans...... 80 Bavarian Precision Products...... 71 K&B Manufacturing ...... 1 Sterling Models ...... 76 Byron Originals ...... 69,75,80 Kraft Systems...... 77.Cover 2 Sullivan Products ...... 85 Bud Caddell Plans ...... 91 K&S Engineering...... 91 Tatone Products ...... 86 Cannon R/C Systems...... 82 Kustom Kraftsmanship ...... 86 T&D Fiberglass ...... 80 C o v e rite ...... 70 MACS Trade Show ...... 83 Uber Skiver Knives...... 103 Jim Crocket Replicas...... 91 McDaniel's Π/C Service...... 94 VL Products ...... 98 Delta M fg„ Inc...... 84 Midway Model Company ...... 88 Wardcraft Marine...... 82 Dodgson Designs...... 88 Midwest Model Supply ...... 72 W.E. Technical S e rvice s...... 78 Draper's R/C Service ...... 82 Walt Mooney Peanuts ...... 98 William Bros...... 95 Du-Bro Products...... 73 Sid Morgan P la n s ...... 98 Wilshire Model Center...... 97 Dynamic Model Products...... 97 Northrop Real E sta te ...... 90 Electronic Model S yste m s...... 71 Octura Models ...... 74 HOUSE ADS Enya Model Products Co...... Cover 4 Peck-Polymers ...... 95,102 Binders ...... 92 FAI Model S u p p ly ...... 97 John Pond O.T. Plans ...... 84 Classifieds ...... 99 Flyline Models, Inc...... 93 RCH Hobby Marketing ...... 93 Full Size P la n s...... 75,100,101 WANTED — OLD MODEL ignition engines, CLASSIFIED ADS cars, etc. Paying lop dollar Bill Simpson. 7413 Via Lorado, Rancho Palos Verdes. CA 90274. Non-commercial (personal items) rate is 25 cents per word, with a minimum of $3.00. (2131 377-3532 Commercial rate is 40 cents per word, with a minimum of $5.00. No advertising agency discounts allowed. WANTED Old model airplane engines, gas All ads are payable with order, and may be for any consecutive insertion period specified. model race cars, related items 1935-55 Name and address free, phone number counts as two words. Send ad and payment to: Arthur Suhr, W218 N5866 Maclynn Court. MODEL BUILDER, Classified Ads. Box 335, 621 West 19th St., Costa Mesa, CA 92627. Menomonee Falls. Wl 53051 Twelve full pages of ready-built models plus FOR SALE Santa Barbara sail yacht $164 All TOLEDO WEST HOBBY SWAP MEET Gotta used equipment bargains in the last issue of original, Halcyon servo. C tizenship 10 outfit lot of hobby things that aren't needed? Want "Hobby Swap News.'' Buy-Sell-Trade, your with instructions. 73" O.L $500 or best offer to buy kits, engines, cars cheap9 Come to our first ad free (35 words max. B&W photo $2 Dave Bianchi. 210 W Elm St., Kent. OH Big Swap Meet Everything sells Only $2 00 extra) with subscription S10/yr (10 issues), 44240; (216) 673-3066. Antique Engines, cars and kits wanted $19/2 yr.. $27/3 yr Add $3/yr tor 1st class Saturday. April 10 9:00 to 12:00 noon La postage, (required for Canada & Mexico). MC Palma Recreation Hall. 7821 Walker St.. La & Visa accepted Hobby Swap News. Dept HELICOPTER Shark 60. Good condition, with Palma, CA. (714) 826-0589 FLC-32. P.O, Box 834. Santa Maria. CA engine, extra blades and open doors. Mike 93456 Turner, 3200 E Genesee. Saginaw, Ml 48601 1934 YEAR BOOK REPRINT: Plus reprints of »1 and »2 Model Aviation (1936); 1932-33 WANTED: A.J. Interceptor. Hornet, and small HOBIE OWNERS; New Wing Design Avail Guide & Logbook; 1934,1935,1938 and 1942 hand launch Interceptors; originals or repli able. Improve performance, lower wing JASCO Catalogues; »1 Model Aeronautics cas. top price. L.J B.. P.O Box 997. Ocala, FL loading, SASE. ESS, Box 437, Lemont, PA magazine; Paper Clip Beam Scale and 49 32678 16851 Plans 192 Pages Only$5.50P.P Model Aero Publications. Box 135, Northridge. CA 91328 PULSE JET — Japanese scaled down ver sion of post WWII Dyna-Jet engine Never run, collector's item Newton B Griffin. M.D.. EMBLEMS-Direct from manufacturer Swiss FLYING HAMBURGER BOXES Models from embroidered. Custom made to your design. 201 Rex Medical Office Bldg Raleigh NC McDonald's styrofoam FREEBEE FLYER 27607 Send sample or sketch and quantity needed instructions-plan catalog $1.00 STYRO for free qoutation. David Haemmerle & Sons, FLYERS'. Book of 8 plans $5 00 Platt Inc., Box 711J. West New York. NY 07093. ULTRALIGHT CLOUDBUSTER Peanut has Monfort. RFD #2. Box 1490. Wiscasset. ME flown 1 56 indoors Plans; $1 00. SASE for list 04578 David Aronstein 50 Pasture Lane. Pough FLYING ACES — Trail Blazer plans by Henry keepsie, NY 12603 Struck Wright Flyer. Curtiss Tripod, Deper- $2 50 IS A SMALL PRICE to pay to insure top dussin. Cierva Autogiro, Taube, Blériot. performance from your engine Glow fuel test Tired of buying dry cells, battery eliminator for Vickers Gunbus Construction article in kit. a sure-fire method that really works! glow plugs. Inexpensive, simple, reliable cluded. $2.25 per plan P.P RET Plan Ser Include SASE L Boling. 22630 Foothill Blvd Plans $3 Mautz. Dept B, 6107 Hwy 133, vice. P.O Box 7893. Midfield. AL35228-0293 ff220D, Hayward. CA 94541 Carbondale. CO 81523 great interest by others. As I read the I have normally used Hot Stuff or gap mess it was! I had to replace the entire KCRC newsletter, I see more and more filling variety along with a beadof RC-56 sheet. In running a little test on the members joining the scale scene. The by Wilhold. In this case, the rather cold ruined piece, I found the threads would KCRC club deserves a salute for gener basement and dry atmosphere found jump or fly several inches. So-o-o-o you ating the enthusiasm other clubs just with forced air heating resulted in tons fellas in the northern clime, watch your dream of. If you are in the Midwest area, of static electricity in the huge 9-1/2 x 9 static. I suspect the Florida and Louisiana watch for their all scale event in May. It is inch piece of plastic. As I placed a bead contingent have no problems with this. a qualifying event for the Scale Masters. of gap filling variety glue along the edge, One to One, Bob. · WATCH THE STATIC strings or threads of the glue pulled Recently, while installing the huge away from the main body and deposited chunk of plastic that makes up the themselves across the surface. At first I windshield of the Hiperbipe, I encount wasn’t aware of this activity because I ered a problem I’ve not run into before. was concentrating on the joint. What a MAY 1982 WHEN CONTACTING ADVERTISERS. TELL ’EM M ODEl BUILDER SENT YOU! 99 FULL SIZE PLANS SERVICE No. 3822 SIMPLE SIMON $3.50 Να 12811 XINGU $4.00 Really simple 1/2A sport R/C for 2-4 ch. High performance F38 type sailplane of Including reprint of construction artide Uses Ace foam wings. By Frank Roales. contemporary construction. Kan Stuhr. (if any) Να 12812 A.J. INTERCEPTOR *1-°0 No. 3823 PEANUT HOT CANARY $2.00 Replica of the famous Jim Walker folding Sharp staggerwing biplane racer, big for a wing catapult glider. By Dave Thornburg. No. 5821 BUCKER JUNGMAN $15.75 Peanut but meets rules. By Bob Sweitzer Aerobatic quarter-scale model for geared 90, 1.2 direct, or Quadra. By Gene Pond. No. 12813 SUNDAY FLYER $150 No. 3824 1912 BLACKBURN $4.00 Free flight 1-1/2 inch scale model of fa Easy beginner's 1/2A sport F/F. One-day No. 5822 CRYSTAL AMANITA $3.00 assembly. Ace foam wings. Ken Willerd. All sheet bass and balsawood 1/2A sport mous antique monoplane. By Sid Miller. C/L for all skill levels. By Tyrone Parker. No. 382-0.T. TWIN PUSHER $3.50 No. 1281-0.T. FOLLY II *4.00 No. 582-0.T. CONTEST WINNER $3.00 Record setting rubber ship from Aug. '36 Beautiful aerodynamic lines on this 6-ft. High climbing diamond fuselage rubber Model Aircraft Builder. Ralph Kummer. gas job. Pic in July '37 MAN. Rod Doyle. ship from '38 Air Trails. Henry Struck. No. 2821 ACRO SPORTSTER 40 $6.00 Sport/pattern low winger, open cockpit, No. 11811 WACO TAPERWING $17.95 tail dragger, .40 powered. Peter Neuer. Sensational 1/4-scale R/C model of Bob Lyjack's Waco. 2.b-3.5 eng. Larry Scott. No. 4821 LOCKHEED VEGA $7.50 No. 2822 MESSERSCHMITT M33 $2.00 Exact 1-1/4" R/C scale model of Jimmie Semi-scale, "bathtub" style, CO pow er Mattern's Vega, 50" span. WaltMusciano. 2 ed sport free flight. By Jack Headley. Minimum of $5.00 on credit card orders. No. 4822 AIR XX "PYLONER" $1.50 C o m p le te list of over 400 plans, 50V Να 282-0.T. VIRGINIA CHAMP $&00 AIR XX (20" Antique I ndoor Rubber) of Little-known, but sharp Class C pylon, NEW ORDERING INSTRUCTIONS typical O.T. gas model. By Ken Johnson. April '40 F.A., 60" span. By Bob Little. Price includes 3rd or 4th Class mail. For air mail or First Class (Priority) in U.S., add No. 4823 SCHNIEDAIR $2.50 25% of totalorder. For Overseas Airm ail (in Composite of typical Schneider Cup rac Ν α 1821 Model Builder RAVEN $5.75 Latest in a long line of tailless R/C sail cludes Canada and Mexico), add 50% of to er, fo r C O 2 or rubber. By Walt Winberg. planes, span 110", 2-ch. By Dave Jones. tal order. Remit by Internetional Money Or der or U.S. funds on Overseas orders. Post No. 482-0.T. TIGER SHARK $6.00 age paid for APO and FPO orders. Master Να 182-C.P. SUPER G SHARK $3.00 Enlarged. R/C version of nostalgic Victor Card or VISA accepted. Include card num An historic two-line controlled model of Stanzel G-liner, 61" span. Harold Lanser. ber. expiration date, and signature. classic lines; one of many by Vic Stanzel. CALIFORNIA RESIDENTS ADD 6% TAX. No. 3821 GREAT LAKES 2T-1E $17.95 No. 182-0.T. HI-HO $150 MODEL BUILDER PLANS SERVICE One-fourth R/C scale model of popular A 1940 convertible stick/Wakef ield; uses 621 West 19th. St., Box 335 Classic Era bipe. 3 sheets. Frank Comyns. demountable cabin/pod. By Ed Lidgard. COSTA MESA, CA 92627-0132 R/C World.... Continued from page 13 Final aircraft to be presented here is exhaust may be rotated to exit to the the new Cowboy 15 from Craft-Air. right, left, or rear of the engine, depend sivěly well, but are not full competition Features include a very generous wing ing on your needs. type designs. Covering is the same area and ample tail moment and area to Since there was a tremendous craft plastic film of the Mini-series. Final step result in a very docile trainer. Tom contingent at the HIA show, I was up is a line of four actual microfilm Williams seems to really understand the careful to tour all the areas with an eye models. They even put the solution and needs of the beginning flier, and manu toward new tools and materials. Sure instructions for making microfilm right factures kits designed to minimize the enough, I found a couple well worth in the kit. speed and difficulty of flying (who else your consideration. The first is the Olfa Sport R/C is my current bag, so I was would design a 6-foot span 1/2A model "rotary cutter". This is a knife styled after pleased to see a few new models appear and kit it?). The Cowboy .15 takes any .09 a pizza cutter, but featuring a high at this show. Two of them were in the to .19 engine and carries it around with quality tungsten steel blade. I got to try Sterling booth, being shown off by Betty 450 in2 of wing area. All-up weight is exactly the test you see in the photo: Boyle and Joyce Mallerman. Their new specified at 2-1/2 pounds. You can fly cutting through several layers of cloth Stand-off scale model is of the “ Real with 3 or 4 channels. simultaneously. I was amazed at how Sporty” Formula One race plane. Scale is At this point, let’s move over to the little force is required, it seems magical it 2-1/8 inch to the foot, and the model is engine category. Testors and Cox still is so easy! I see this as the ultimate designed to fly with .15 to .25 size make engines, but I did not see them solution to cutting silk without snagging engines. The wing is fully sheeted, so it displayed. What I did see displayed was it, and the knife ought to be superb for can take those high-g maneuvers. The pretty interesting, though. Enya caught cutting plastic film coverings too. The model meets all specs for 1/4-Midget my eye first with five new beauties. In roduct is reputed to do a good job on racing. All that lovely contouring of the order of decreasing size, they showed a alsa wood, but I haven't had the oppor cowls and wheel pants is preformed .40 four-cycle, a .35 four-cyle, a .25 tunity to verify that, or find where it plastic. That’s the way to reduce effort Schneurle, a .19 Schneurle, and an .11 would be especially useful. I bet you and weight at the same time. size engine set up for car racing. FHope could make a superb rubber stripper Joyce and Betty also showed off the they also release the .11 in aircraft form! based on this knife or the blades. new Piper Vagabond. Trust me, it isn’t HB engines also had an interesting bit I stopped by the Intermatic booth to that it is so heavy they both had to hold of hardware on display,a new ball-bear take a look at its spray equipment. There it; it is so cute, neither wanted to let go. ing, Schneurle ported, ABC piston/ is a new line specifically aimed at the The model is admittedly a scale up of sleeve engine in the .21 size. They said hobbiest. The most remarkable item I one of their “ Kid-series” models, and is that it will be priced competitively with saw was its Model HS830 airbrush. It all balsa construction except for the the K&B 3.5cc. The engine has squared features many plastic parts, so the cost is molded cowl. You can fly the model as a off fins which give a tremendous cooling held down, but also, it pops apart for free flight with rubber power or gas capability. The engine is not especially cleaning. No more desperate search for engines, or fly it by U/C or R/C control. I heavy, though. They state in their intro the wrench as the epoxy paint slowly was amazed at just how light the model ductory letter that this is the first of their sets, turning your expensive airbrush comes out with that type of construction. entries into the racing engine field. The into a gaily colored lump of useless It definitely falls into the Schoolyard engine is rated at 1.05 HP at 24,000 rpm. metal. This unit can handle pressures up scale category. WOW! Weight is specified at 10 oz. The to 45 pounds in either a bleeder or non- 100 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER MB BRINGS YOU OF OUR MOST POPULAR CLASSIC OLD TIMER FLANS No. 575-O.T. MERCURY $5.00 SEE PAGE 100 FOR ORDERING INSTRUCTIONS. Designed by Ben Shereshaw, kitted by COMPLETE R/CMB PLANS LIST SENT WITH EACH ORDER. Scientific. 72" span. By Phil Bernhardt. No. 11800.T. FOKKER D VIII $4.50 No. 977 O.T. GUFF*' $4.00 No. 475 O.T. G.H.Q. SPORTSTER $5.00 Very stable F/F flying scale ship for .23 W alt G ood's 1938 Class 'C* gas w inner, From July 1936 M A N., also kitted by ignition engines, 57" span. By Earl Stahl. from "40 AT Span 72". Al Patterson G.H Q. By Louis Loutrel. Phil Bernhardt. No. 9800.T. DOLPHIN $1000 No. 877 O.T. PB 2 $7.00 No. 175-O.T. FLYING QUAKER $5.00 Beautiful planked-fuselage 9" streamliner Payload gas m odel w inner fro m A ug '38 First gas model kit by Megow, 1937. from 1939 M.A.N. By Thracy Petrides. M.A.N Spans 8 feet. By Thracy Petrides. Span 7 ft. Redrawn by Phil Bernhardt. No. 8800.T. HAYSEED $4.00 No. 777 O.T. NEW YORKER IV $3.00 No. 1274 O.T. THERM'L THUM8ER $4 00 H ot Class A o r B p y lo n ty p e gas m odel Hot A/B pylon (no-window cabin) never Frank Zaic’s 1938 Stout Trophy winner, Span 48". Redrawn by Phil Bernhardt. before published, 4-ft. span. Carl Hermes. also for Wakefield. Patterson & Northrop. No. 7800.T. STRATOSPHERE $150 No. 577-O.T. GLADIATOR $5.00 No. 1174-O.T. LANZO STICK $3.50 R ubber stick w in n e r, '40 Nats. Span 4V4'. Streamline cabin rubber ship from May Class C free flight from March 1941 Air Still good in Unlim. By Phil Bernhardt. 1941 M.A.N., 36" span. By Henry Cole. Trails. 68" span. M. Schoenbrun design. No. 380-O.T. FLAMINGO $6.00 No. 477 O.T. CLOUD CHASER $1.50 No. 91074 O.T. BUHL PUP S6.00 Rare old-timer appeared in 1938 JASCO This 30" span stick job from 1938 MAN Semi-scale 8 ft. span model published in catalog, 89" span. By Roger Hammer. is OT, FF trainer, Unlim. Bruno Marchi. 1936 MAN. Redrawn by Phil Bernhardt. No. 280-O.T. RED RIPPER $5.00 No. 377-0.T. GAS CHAMP $5.00 No. 874 O.T. POWERHOUSE $5.00 Sort of a ‘squared off' Zipper, from 7/40 The famous 1940 "Eastern States Champ” Taibi's famous design for Forster 99 ign Flying Aces. 72" span. By Jerry Peeples. by Russell Simmons, span 76" Al Patterson. Great for R/C O. T. By Phil Bernhardt No. 180-O.T. SUPER CLODHOPPER $3.00 No. 1276 O.T. RAMBLER $4.00 No. 674 O.T. RED ZEPHYR $5.00 Highly refined version of 1937 Moffet G ood 7 2 " span contest gas m odel tro m One of the most famous of early kit gas winner, from 1941 A.T. By Jim Cahill. 1939 Flying Aces. By Gilbert Shurman. models. Redrawn by Phil Bernhardt No. 1279-O.T. MISS TINY $4.00 No 1076 OT CALIFORNIA CHAMP $3.00 No 574 O.T. The T-D COUPE $5.00 Classic high wing 1936 'C cabin gas job Well known and sharp little 1938 gassie 1940 Wakefield with retract wheel, twin rudders, anhedral stab. Tom Engleman. Span 64" Redrawn by Phil Bernhardt for .19-.23 ignition, 46". Barney Snyder. 1179-O.T. MISS PHILADELPHIA $8.00 No. 976 OT WINGED VICTORY $5.00 No 474 O.T. PACEMAKER $5.00 Maxwell Bassett's famed 8 ft. parasol gas Classic and realistic gas model from 1937 J L. Sadler's famous Class C low wing model, kitted by Scientific. By MB staff. MAN. Radial cowl, 5' span Joe Weathers. gas model Redrawn by Phil Bernhardt No. 979-O.T. LANZO '37 STICK $8.50 No. 876 O.T. RECORD HOUND $5.00 No. 274-OT PACER "C" $4.00 First R/C Nats winner, 4th in Famous Shoulder-wing mono-wheeler with anhed Sal Taibi's famous 1941 Nats gas winner. R/C series. Spans 9 ft. By Chet Lanzo. ral stab. Span 72". Hank Struck design. 60" span. Redrawn by Phil Bernhardt. No. 879-O.T.-2 CHALLENGER $4.00 No. 576-O.T. SCRAM $5.00 No. 174 OT EHLING'37 GAS JOB $5.00 E a sily-b u ilt Class B gassie w ith 5 0 " span Clean Class C cabin job from July 1938 Frank Ehling's 8 ft span 1937 gas model from May '41 Air Trails. H.A. Thomas. Flying Aces. Span 83". Heit/Patterson. Stil! winning' Drawn by Phil Bernhardt. No. 579-0.T. TAYLORCRAFT $12.00 No. 476 O T CABRULER $4.00 No. 1273 OT INTERCEPTER $2 00 Quarter-scale in 1941! Famous 9-foot de Never-before-published Class A cabin m o An .020 Replica of popular Goldberg de sign kitted by Miniature Aircraft Corp. del New Ruler, by designer Hank Stiuck sign, kitted by Comet By Wayne Cain No. 379-O.T. PRIVATEER $6.00 No 276 O.T. "LONG CABIN" $5.00 No. 1073-OT GOLDBERG ZIPPER $4.00 M ost fam ous o f all O T gas m odels, ended Very clean cabin design from Sept. '38 G ood loo kin g , stable cabm gas m odel of cabin era. Redrawn by Phil Bernhardt M.A.N., 87" span. By Thracy Petrides. the 1937 era Span 78" Phil Bernhardt No. 878 O.T. .020 RECORD HOUND $2.50 No. 176 O.T KORDA WAKEFIELO $2.50 No. 973 OT SPOOK 48 $4.00 Classic Henry Struck design. Could dom The classic of all rubber powered comp Well-known gull wing design qualifies for inate .020 Replica class. Dave Sweeney. etition free flights By Phil Bernhardt Antique Old Timers. By Snyder & Muir No. 778-O.T. CURTISS ROBIN $6 00 No. 1175 O T. FOO 2-U-2 $3.00 No. 773 OT LANZO 8‘ GAS MODEL $6.00 A 1937 Sport Scale ship1 From Comet A pre-Zipper design by Dick Obaiski, re Chet Lanzo's famous "Record Breärer " kit, 72" span Designed by Joe Konefes. duced to .020 Replica, by Ron Sharpton Two large plan sheets By Phil Bernhardt No. 678-0.T. MISS DELAWARE $5.00 No. 875 O.T. '38 MOFFETT CHAMP $3 00 No 673 OT ALBATROSS $4.50 Steve Kowalik’s 1937 Junior Motors Con Canadian Roy Nelder's beautiful rubber Class C gas ship designed by George sistency winner. Easy to build, 7' span. ship A real classic By Phil Bernhardt Reich Redrawn by Phil Berhardt No 573 OT 1 AERBO 020 $3.00 No. 1277 O.T. HURRICANE $2.50 No. 775-O.T. BOMBSHELL $4.00 Earl Stahl's 33" span 1940 rubber pow Famous w inne r o f Class C gas at the '4 0 Replica of 1941 Class A Nats winner ered low winger Northrop & Patterson. Nats, by Joe Konefes. Phil Bernhardt. Span 30 Redesigned by Phil Bernhardt MAY 1982 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 101 about how to get started. In this one area, it was possible to learn how to THE PEANUT-PEOPLE PPESENT cover a model airplane wing, trim a free- PEANUT SCALE MODELS SPORT MODELS BUILDING NEEDS flight model, build a model boat, or find someone who would help on that first R/C flight. As one who firmly believes in the club approach to a hobby, I felt this PROPS. TISSUE. RUBBER. WINDERS. facet of the show was of great benefit. I MUSTANG PRAIRIE BIRD · 4» BLADE SHARPENERS. BEARINGS. KIT $5.95 PROP SHAFTS. LUBE. WASHERS. can only speak for the followups made MILES M-18 ZERO BABY ACE $6.49 WHEELS. FUSE. CO-2 MOTORS. BOOKS. PLANS and MORE. about model boating and they have DRUINE PIETENPOL ONE NITE 28 $6.95 COUGAR PIPER CUB been very rewarding to our local club. ONE NITE 16 $5.95 ADVENTURE MODELS GIPSY MOTH ANDRESON Plans are already well underway for GANAGOBIE LACEY M-10 STRINGLESS WONDER $4.95 PONY BUMP PECK R.O.G. $1.95 p o n t ; 11-FT. R/C AIRSHIP the 1983 Northwest Model Exposition. All Rubber Powered KIT $249.00 Balsa and Tissue Kits $5.95 RUBBER OR CO-2 POWERED The first weekend in February will once again be the date, and the location will COMPLETE CATALOG $1.00 HARD TO FIND ITEMS FOR RUBBER MODELS AND AIRSHIPS remain the same. It is hoped that the MB P.O. BOX 2498-MB LA MESA. CALIF. 92041 success of this first event will encourage Peck-Polymers PHONE (714) 469-8675 or (714) 442-4638 greater manufacturer participation for next year, for there is no doubt that 1983 may, it will prove a real blessing for us will see even larger crowds of people INDOOR MODEL SUPPLY modelers who just simply want our fuse and additional models on display. OUTDOOR Í INDOOR FLYERS FOR THE NOVICE lages to match the wings. By the way, I R/C WORLD SELECT SATIN SMOOTH SHEET BALSA just flew my first airplane painted with by John Elliot Yard Birds w S p a n 3 IM S G l i d e n 12 S p an Fia# Wheeling Plastic _ κβοi^ $5.95 Formula-U, and there was no running or Well, good grief, Charlie Brown! P *o p degradation of the paint even though I When I reached down into the 'quiz ** υ β ο χ was using 30% nitro fuel. Good stuff, but bag’ for the wild maneuver mentioned be sure to give it LOTS of drying time in the March issue, little did I know what THE SLOWPOKE S p an 16 after painting to reach full chemical a toughie it would be. (By the way, resistance. response to the Lomcevak quiz was out Well that is the most significant of the standing to say the least.) As of the roduct selection at the show. I could middle of February, only (wo replies, F *·· Wheeling $4 95 $495 Eore you at length with recounts of the both naming Jan Zurakowski and the Weight 2 Pennys Plastic P»op many pleasurable conversations with ‘Zurabatick Cartwheel’, have been re INDOOR ENDURANCE RUBBER MODELS old friends, where I had dinner, lunch, ceived. Guess we need to pick and THE EASY 8" 2 PARLOR 3 PARLOR PLANES <1 Spin *3.95 COPTERS 10 So. „ $s 95 etc., but I’ll just sign off with the recom choose a bit more carefully. Norbert 12 S p an , $3.95 mendation that if you are in Dallas, be Gurell’s reply arrived first, even had the sure to find yourself some joint that exact date, 9 August 1951, when Jan first specializes in REAL chili. In "Big D” they performed the maneuver in public. know how the stuff should really be George Cillberg was a close second. made! Both Norbert and George are from THE "TIME MACHINE" PENNY PLANE 1982 NORTHWEST California, by the way... Maybe Tom IS Span · Fult S·/· Plans Cook, of Me 262 and F-4 Phantom fame, $ 5 .9 5 VS - jA s J i -Fun Sue Plop Jig MODEL EXPOSITION • Picture lllustralad Text: )erry Dunlap. Photos: Jerry Julian will build a Meteor and 'give it a go.' • C o n d e n s e * P e p ·· • Ultra Light Balsa Modeling activities of all forms were In the March issue, we touched on • M ini Bearing showcased at the first Northwest Model one club’s activity regarding public • Micro Washers • Pirelli Rubber Exposition conducted at the Western service, namely the BIRDS and participa • High Performance Washington Fairgrounds in Puyallup, tion in the Easter Seals program. We The W orld's 1st Washington, on February 6 and 7. This would also like the mention the efforts Omithopter Kill initial gathering of modelers, manufac of the Skynauts of Saddleback Valley, Fascinating! 2 Minute F lights turers, and spectators was claimed a here in the Southern California area. WEIGHT 1/8 OZ success by those participants, as 9,000 The USMC has a ‘Toys for Tots’ program INDOOR MODEL AIRPLANES by Ron W illiam· people viewed the event. Under the for needy children at Christmas time, 264 Pga. and Over 200 llluatratlon· plus 2 FREE able leadership of Bob Pfieffer, secretary and what could be more natural than a Full Sixe Plan Sheets for I.M.S. Easy "B ” $11.05 INDOOR MOOEL AIRPLANES by Law Qltlow of the Mount Rainier R/C Society, and full-blown Air Show, R/C models, that 48 Pga. A Over 100 Illustrations (reprint)___ $3.05 with fantastic support of that group and is I PEANUT POWER by Hannan. 80 Rga. 08.05 INDOOR BALSA PACK $8.05 P NUT RACK 08.06 other model airplane, car, and boat Several years ago, Skynauts club ROLL OF MICROLITE COVERING______$3.25 clubs, the event pulled Northwest member and active reservist Dave CONDENSER PAPER *2. SO—WASHERS *1.50 modelers together for the largest event Herbert and other members, initiated RUBBER LUBE *1.50—CEMENT *1.50 THRUST BEARING: Nm Tiny .SO Nm Du I 1.00 of this type ever conducted in the efforts for an R/C Air show at the Marine NEW MARK 1 WINDERS—18:1______»11.95 region. Corps Helicopter Base in Santa Ana (the NEW SMOOTHIE WINDERS—6:1______*3.95 The Modern Living Complex of the old LTA station). This being its third 'Toys 9.1 Winder only 91.95 with 925 Ordor ALL ORDERS 9 KITS ADO 10% POSTAGE Western Washington Fair offered 49,000 for Tots’ show, the club put heart and j Minimum postage $1.50 square feet of club displays, manufac soul into the effort, enlisting (drafting turers' exhibits, models of all shape, size, would be a better word I) top flyers, such 1962 16 PG. CATALOG $1.00 and variety, a swap meet, and an indoor as Joe Bridi, Ken and Dave Wilson, BOX C, GARBERVILLE, CA 95440 electric racecar track. The rodeo infield Garland Hamilton, Dave Shadel and immediately adjacent to the showserved Gary Hover, Dan Parsons, Mel Sant- bleeder configuration. I wish I had one; as a mini heliport for model helicopter myers, John Simone, along with club clean up is my biggest bugaboo in demonstratins, a flying site for control members, Reese Meyer, C.J. Jordan, spraying. line airplanes, a dirt track for model off Dave Herbert, Bill Hill, Randy Bloom, Speaking of spraying, we reach the road vehicles, and even a runway for Jim Whitacre, Bill Evans and Scott Reed ena of the trail with Pactra’s booth and small, lightweight, single person flying to do the flyfng honors. Sam "Silver its new colors of Formula-U to match the machines. Tongue” Wright did yeoman honors on eight most popular colors of Monokote. The model club information area the mike, with instant information on I would say that that is pretty generous of offered local modelers an opportunity each and every maneuver, plane, and them, since Monokote is in competition to promote their hobby interest to many pilot. Needless to say, many club mem with their own Solarfilm. Be that as it of the spectators who had questions bers put in a lot of work to bring it all 10 2 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER IN THE BEST CIRCLES, IT’S fiber ikiver 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, Deeply Knurled, Non-Slip Grip and 2 0 ...... $14.95 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 201 $3.30 20 See your dealer, or order direct. Dealer inquiries are invited. OER PRODUCTS All direct orders sent postpaid in U.S. MODEL BUILDtn California residents add 6% sales tax. 621 West Nineteenth St., Costa Mesa, California 92627 30,000 plus people to see the full-size cars and accessories, will have a special ‘dirt’ track built for the three days of the show for 1/10 scale R/C off-road racing PROUDLY PRESENTS THE cars. The R/C ‘Dune Buggy’ (what hath Riverside Radio Control Club Mr. Leroy Cox wrought?) has come a long way baby, but fast... ★ ★ ★ Every now and then, 'Murphy’ and his ‘Laws’ surface. Picked up from Fred Hulen in the KC/RC "Contacts” news FIFTH ANNUAL letter are a few ‘Murph’s’ worth repeat ing. So, here's Murphy. .. "All problems begin at the end of the warranty period." USPJA JUDGES "If it jams, force it . . . if it breaks, it needed replacing anyway!" A.M.A. SANCTIONED "A five hundred dollar airplane will EVENTS: always hit the ground five times harder • SPORT ANO GIANT than a hundred dollar airplane!” SCALE COMBINED You got it. · *★ • SPORTSMAN ANO EXPERT CLASSES a TEAM SCALE Workbench...... Continued from page 6 ■ BEST OP ERA or contact Frank for additional informa tion.” Chuck Aro, Director LOCATION R ivtttid· International Raceway NAG Publicity For those who go for it, the member ship form also indicates that a four-inch official NAG patch is available (to mem bers only) for $2.25 each. THINGS TO DO / The AMA Nationals for 1982 are now 1 May 15&16, 1982 solidified for a repeat in Lincoln, Nebraska. All events will take place in REFRESHMENT STAND Lincoln. The dates are August 1 through y MOTELS ANO R/V PARK NEARBY 8. V ! R EG ISTRATIO N: BOO A.M. 8HARP ★ ★ ★ ISE The very sensational "Flying Aces lo t more information, pleas· call...... DON LIEN, C/O C71A) 089-0330 Nationals — Mark III” will be held at MIKE M IL L E R , C/MQRC714) Θ 8 Β -1 9 7 3 Johnsville Naval Air Station, Johnsville, PA on July 17 and 18, 1982. A formal display ad will appear in Model Builder YOUR PRE ENTRY WOULO BE APPRECIATED soon, but we thought you might like to make chocks payable lo: know now, so you can start (finish?) NAME _ AMA RIVERSIDE R/C CLUB building for it. ADDRESS F C C < 0 5 5 MT VERNON AVE RIVERSIDE. CA 92S07 ★ ★ ★ ENTERING t No time to start building when you SPORT / GIANT SCALE C ) ···· FREQ read this, but you may want to grab your TEAM SCALE ( 1***' F R E a . camera and head for Falls of Rough, Kentucky, for the Tenth Annual Mint ENTRY FEE : S 1 8.00 FOR ONE EVENT, S 8 .0 0 FOR ADDITIONAL EVENT Julep Scale Meet, April 24 and 25,1982. Events include Sport Scale Division 1 and Division 2, Giant Scale, FAI F4C Scale, and FAI Stand-Off Scale (Expert Class only). Division 1 is for aircraft with together. What with a lot of good PR in nauts are the proud recipients of a retract gear plus more than one the local media, over $42,000 worth of genuine, "Well Done.” mechanical option, or designed for toys for underprivileged children were As an aside, in the Southern California racing. Division 2isforfixedgearaircraft realized. area this coming December, Chapter having no more than one mechanical Athletic types entered several short Three and Seven of QSAA, the Orange option, or . . . you guessed it .. . not and long distance runs held early in the Coast R/C club, the San Gabriel Valley designed for racing. morning as part of the pre-show. The R/C club, and again the Skynauts, will Contact John Guenther C.D., (812) price of admission/entry for spectators, each host a 'Toys for Tots’ fun-fly or 967-2814, or Co C.D. Dale Arvin, (812) runners, and flyers was one new toy of airshow. A worthy cause, well served, 283-5719 for more information. about three to four dollar value. Monies and, good public relations. ★ ★ ★ realized from concession stands also ★ ★ ★ The Vaca Valley RC, Vaca Skylarks, went toward purchase of toys. What It's interesting to note how quickly and Don’s Hobbies are sponsoring a with the runs, a two-hour airshow in the R/C off-road racing has come of age. hobby show at the Geri-Town Mall, 385 morning, entertainment by the Mission Tracks and organizations are being built Travis Blvd., Fairfield, CA, on May 15, Viejo High School marching band, Santa and formed around the country, in from 10 a.m. to 5 p.m. Contact Lowell Claus arriving in the Goodyear Airship Canada, and in Europe, too. The forth Gamble, 292 Suisun Valley Rd., Suisun “ Columbia,” and another two-hour coming SCORE Show to be held on April City, CA 94585. airshow in the afternoon, plus static 16-18, 1982 at the Anaheim Convention A PARTING SHOT! displays of many R/C models, the Sky- Center, an event that draws around BANG! · 104 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER We gave it 5 years of wear in 11 grueling days . . . No backfires, break downs or loss of power... no problems at all! Once again, Enya proves that in performance and reliability, they’re second to none. The te s t . . . We took a brand new .40 4-cycle right off the shelf for this endurance experiment; a totally stock engine with no modifications at all. First we miked all internal parts. After bolting it down, we cranked it up -fo r 124 tortuous hours! We kept it running at 7,000 r.p m.’s, and regularly went from idle to 10,000 r.p.m.'s to constantly make sure it was tested at all power ranges. In short, we gave it every opportunity to break, but it didn't! Tile results . . . After 124 hours, it was still running strong - no sputtering, backfiring or missing. And all the time we ran, not once did we have to make any adjustments on the valves. So we decided to break it down and take a look inside. As expected, the engine maintained its off-the-shelf appearance with no evidence of oil or compression leaks, wear rings or grooves. The engineers were amazed at the lack of heat or burn marks. There was hardly a touch of wear. But it was only when we tested the major parts and assemblies for wear that we could measure the true success of our experiment. Miking to ten-thousandths of an inch, this chart reveals how well our engine stood up to this grueling test: B iliri Aftir Bore .8770 8770 no change Stroke .6725 .6725 no change Piston Dia. 8750 8750 no change Wrist Pin 1965 1960 Rod Bushing Dia. At Wrist Pin 1975 .1975 no change Rod Bushing Dia. At Crank Pin .2172 .2178 Valve Lifters .197 .197 no change This strength is the direct result of experience in selecting materials with the ideal finish, tensile strength and exact temperature coefficients. . . and then honing them to precise tolerance levels. And it’s the same precision that we put into each and every Enya product. So if you buy any Enya engine, from our .09 to our monster .60XL, you'll get the same reliable performance time-after-time, year- after-year. Enya . . . buy it with confidence and wear it well.