Anthony Ita 1655 Revere BrookfIeId, S V580|i0Z8VZS You’ve got th e d esire to be a Champion. control buttons and servo reverse 5 channel Flclicopler sys switching. And serious fliers can also tern. Write now for compl appreciate our water and dust proof, dual technical data, because ball bearing S121 servos, modular RF the sky's not the limit an boards and direct servo control. more. ΛΙΙ J-aeHc» \ysicim use The J-series Futabas clianuť Kl module* for In are available in 4.5,6 and riio d iil.il io n 8 channel systems, plus a Dreams of conquering the skies are what makes a winning pattern flier. But even the best contest competitors know that you've also got to have the right equip ment. Futaba's J-series radio control systems are just that. Pure, state-of-the- art electronics with high-performance features like full programming capability, dual mixing circuitry, roll and snap roll behind tin RJiV* batik panel art? 20 programming control «-(ling*. Including ' uual rate* ir»d l poll-lino. irify lunet iont·. See it at your local Hobby Shop. They serve you better... they can provide assistance, answers and service! MATCHED FINISH SYSTEM”- A COMPLETELY CORRELATED FINISH SYSTEM all ingredients required to: COVER K&B FIBERGLASS — 3 weights — highest quality. K&B SUPER POXY RESIN — easily workable — requires minimum SEAL of sanding — does not become brittle. K&B PRIMER/PRIMER CATALYST - the last step before PRIME painting — can be brushed on or sprayed — fills every crack - sands extremely easily to a smooth finish. K&B SUPER POXY PAINT - the final step - 33 Colors - Spray or Brush/Satin or Gloss — unequaled quality — unmatched high PAINT gloss . mix and use — faster curing — no hard rubbing — lasts longer — the ultimate in model paint. K&B MICRO-BALLOONS FILLER — for damage repair or REPAIR smoothing out surfaces. K&B MIXING CUPS — for your convenience — one ounce, unbreak­ able, plastic cups accurately graduated with milliliters and fluid ounces— ideal for mixing filler, resin, paint, etc., in small amounts. K&B ENGINES SUPER POWER PLANTS Κ&Β GLOW PLUGS consistent peak performance r u t L 4 plugs — long reach, or short reach in standard or idle bar — (idle bar is to meet ALL flying needs a "must" for control from low idle 7 blends . 4 with X2C oil, 3 with to a constant maximum r.p.m.) castor oil Here you have it all, everything you need to make your model powerful, dependable, durable — 12 model air­ plane, car, or boat tops in appearance and tops in performance, plane engines . from .19 to .61 (standard and all from K&B, the leader in its Held since 1946. R/C); 4 model marine engines . 3 inboards 3.5 to “THE CHOICE OF CHAMPIONS” 7.5 (standard and R/C); 1 outboard 3.5 (standard) K&B MANUFACTURING 12152 WOODRUFF AVE., DOWNEY, CA. 90241 K - M O D E L OCTOBER 1979 t 'B U IL D E R volume 9, number 93 621 West Nineteenth St., Costa Mesa, California 92627 Phone: (714) 645-8830 STAFF CONTENTS PUBLISHER Walter L. Schroder FEATURES EDITOR Wm. C. N orthrop, Jr. W O R K B E N C H , Bill Northrop.......................................................... 6 GENERAL MANAGER . .T H R E E IF B Y A IR ,” letters to the Editor.......................... 7 Walter L. Schroder O V E R T H E C O U N T E R , Phil Bernhardt ................................. 8 ASSISTANT EDITOR R / C W O R L D , Bill Northrop............................................................ 11 Phil Bernhardt F U E L LIN E S , Joe Klause, George Aldrich, Otto Bernhardt . 24 ASSISTANT GENERAL MANAGER Anita Northrop HALF-A SCENE, Larry Renger....................................................... 26 ART DEPARTMENT "1 TO 1 ” R /C SCALE, Bob Underwood................................. 28 Chuck Blackburn W O R L D W A R II S C R A M B L E , Patricia & Monty Groves 30 Al Patterson T H E F L IG H T IN S T R U C T O R , Dave Brown......................... 36 OFFICE STAFF Edie Downs P L U G S P A R K S , John Pond .............................................................. 37 Georgi Gilleran R / C S O A R IN G , Dr. Larry Fogel..................................................... 42 Pat Patton A. Valcarsel PICKIN G A SLOPE SO ARIN G SITE, Dave Thornburg 43 E L E C T R IC P O W E R , Mitch Poling.............................................. 44 CONTRIBUTING EDITORS R / C A U T O N E W S , Chuck Hallum ............................................ 46 George A ldrich Walt Mooney Dave Brown Mitch Poling CHOPPER CHATTER, John Tucker.......................................... 47 Otto Bernhardt John Pond PRATHER DEEP-VEE REVIEW , Jerry Dunlap.................... 48 Rod Carr Fernando Ramos Jerry Dunlap Larry Renger STRICTLY SAIL, Rod Carr................................................................ 50 Larry Fogel Dan Rutherford R/C POW ER BOATI NG, Jerry Dunlap................................. 52 Jim Gager Tom Hutchinson Chuck Hallum Dave Thornburg F R EE F L IG H T S C A L E , Fernando Ramos................................... 56 Bill Hannan John Tucker HANNAN’S HAN GAR, Bill Hannan........................................ 58 Joe Klause Bob Underwood M A K IN G B A L S A W H E E L S , Dan Yamada ........................... 62 ADVERTISING MANAGER C O N T R O L L IN E , Dan Rutherford............................................... 63 Walter L. Schroder FR EE F L IG H T , Tom Hutchinson ..................................................... 64 SCALE VIEWS FIAT CR-32 (Part II), Peter Westburg........................................ 33 R/C MODEL BUILDER (ISSN 0194 7079) is published monthly by RCMB INC., 621 CONSTRUCTION West Nineteenth Street, Costa Mesa, Cali­ fornia 92627. Phone (714) 645-8830. T H E B IG S T IK , Don Anderson......................................................... 16 P EER LESS " P A N T H E R " O .T ., Walter Schultz.................... 40 Subscriptions $20.00 per year, $37.00for two years. Single copies $2.00. Add $3.50 per F IR S T N IG H T , John Godden and Jim Moseley........................ 54 year for postage outside the U.S. (except APO and FPO). POLISH PEANUT (LUBLIN R-XII), Walt Mooney .... 59 Copyright 1979 by RCMB INC. All rights reserved. Reproduction without permission prohibited. Change of address notices must be received six weeks before date of issue that new address takes effect. Send old address with Cover: Jenny Anderson, age 4, serves exaggerate this already huge version of Phil new; old label preferred. Post Office will Kraft's famous Das Ugly Stik, probably the world's most popular (though maybe not not forward copies unless you pay extra the most beautiful) R/C model aircraft. Jenny's father, Don, in collaboration with Mike postage. Duplicate issues cannot be sent. Smith, designed this monster for the currently popular large ignition engines. Construct­ ion article begins on page 16. Photo by Eric Meyers. Second class postage paid at Costa Mesa, California, and additional offices. 2 R/C MODEL BUILDER inally from Kraft, a quality ready-to-fly electric powered radio Any quality 2-channel radio control set may be used, however, ontrol model aircraft is available. Because it is clean and quiet, the Kraft KP-2A or KP-2AS is recommended. our neighborhood vacant Jot, schoolyard, or park becomes our private airdrome. Electric power is simple. Turn on the Enjoy the sport of radio control the easy way, See your nearest witch and fly. No hard starting, frustrating, miniature glow Kraft dealer for the very best in radio control. gine is required. ‘ - — : . ~ - SPECIFICATIONS: Wing span 47.5", Length 30.5", Area 295 sg. be aircraft assembles in minutes from pre-painted parts with in., Weight 33 oz. (with radio equipment installed). Suggested oly a screwdriver. Ample power is supplied by especial motor Retail Price: S99.95. (Batteries and charger not included). ith high temperature windings and a balanced armature. Extra opacity long life nickel cadmium batteries may be fully charged i 15 minutes with the optional fast charger which plugs into Per S free catalog of Huff s Radio Conuoi Sne wiiie ur car cigarette lighter. Flying time is approximately 4 minutes K r a f t 450 W. Califorma /We.. P.O. Box 1268 -ML m SYSTEMS. INC r charge. Vista, California 92083. (714) 724-7146 FOX 15 SCHNEURLE BUSHING B o re ......................................................................590 W eight...................... .6 oz. S tro k e ..................................................................550 RPM with 8-4 prop 13,000 Displacement .................................................... 15 Beginners love the Fox 15 Schneurte. It cranks easy and it starts quickly. It runs well even it the carburetor adjustments are not Just exactly right. Powerwise this motor is equal to any 15 Bushing on the market. The R/C version is equipped with a full metered carburetor, Just like the expensive 60's. This means that your engine will continue running at intermediate and low speed throttles, through any sort ol wild maneuvers that you may be able to come up with. 11800 Fox 15 Schneurle Bushing 90301 Tuned Muffler...............................$15.95 Motor for Control Lin e .........................$27.95 1t648 High Compression 21800 Fox 15 Schneurle Bushing Head Button ............................................... .2.50 Motor for R / C ........................................... 37.95 40716 Racing H e a d .....................................3.50 90242 Conventional Silencer................... 5.95 FOX 15 SINGLE BYPASS B o re....................................................................590 W eight.............................................................4 oz. S tro k e ...............................................................540 RPM with 8-4 p ro p ................................... 12,000 Displacement ....................................................15 This outstanding little motor is now in its 15th year of production. Its success has been so great that a whole family of 15 size profile model kits have been produced around it. Main bearing is .375" diameter and engine is ported generously. Piston is machined from mehanite and the cylinder from leaded steel. The 1979 model features an improved crankcase, with two studs to accept our "A" series muffler.