Model Builder November 1986
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NOVEMBER 1986 U.S.A. $2.50 Canada $3.00 ICO 80545 volume 16, number 178 WORLD'S MOST COMPLETE MODEL PUBLICATION FEATURES ONSTRUCTION Bboard THE SR SERIES: TRAINER SYSTEM: MORE, FOR LESS Airtronics radios offer you the The SR Series has a built-in appearance, features, and feel of R/C Trainer System compatible high-priced R/C transmitters. The with Airtronics XL and Cham flight-proven SR4R and SR6DR pionship radios. radios provide reliable R/C opera This feature allows two tion for beginner and expert alike. transmitters, coupled by cable, The fully compatible SR Series to control a single aircraft, features plug-in RF modules, a enabling the ------------------- Trainer system, and precision instructor to gimbals for the feel and control take over con of our more expensive R/C trol during systems. flight training. VALUE: FEATURES: I___________________ Airtronics’ economical SR • Servo reversing for easier Series radios offer modelers installation the best features, appearance, and • Plug-in RF module allows for reliability for your radio dollar. rapid frequency changes The same state of the art • High Quality Rechargeable circuitry, modem construction Nicad batteries techniques, and advanced ergo • Adjustable length and tension nomic design used in our more sticks sophisticated, higher-priced sys • Dual Rates (SR6DR Only) on tems, is incorporated into the elevator and aileron SR design. • Fully compatible Trainer FLEXIBILITY: System SR4R and SR6DR systems can • Electronic Trims (SR6DR only) be expanded, as eliminate neutral shift your flying expe • Balanced Mixer — AM or FM rience increases. Receiver for superior noise and Interchangeable image rejection plug-in RF The Airtronics SR Series— modules allow when it comes to quality, features, modelers to and affordability, no one is quickly and easily change frequency remotely close. bands, and switch from AM to FM operation. Airtronics’ complete new prod uct catalog is available for $4.00. COMPATIBILITY: Please send check or money order The SR4R and SR6DR utilize to the address below: thoroughly tested and flight-proven transmitter electronics and the same quality receiver found on our more expensive systems. ^AIRTRONICS SR Series component technology ^ 11 Autry, Irvine, CA 92718 is fully compatible with all of (714) 830-8769 Airtronics’ quality radio systems, A t Airtronics. we want to be known servos, and accessories. as the best, not just the best known. New! The Leisure Lanzo Bomber electric R/C kit. Easy to build, light weight motor glider for ’’old timer” competition or,pen flying. Leisure introduces lunch hour Scaled from one q f the most popular old timers o f all, the classic Playboy Senior, the R/C flying. Leisure Playboy is a stable, easy to fly design Just right for electric flight. Want to try an electric R/C When you own a Leisure elec airplane with quickie clean up after each flight. Turn on the 500 performance? radio, flick the airplane motor switch on tric flight system, your R/C flying The Leisure Wasp can give you exciting and you’re flying. isn’t limited to weekend trips to a aerobatic flights o f remote flying site. Leisure has made 8-10 minutes that quiet, clean and economic electric you will never forget. flight a practical reality. Now any Because these R/C airplanes are park, field or vacant lot becomes electrically powered, if your flying site your flying site, anytime, any neighbors don’t see you they will never where, even lunch hour in the city! know you’re there. When we’re talking electric power, we’re talking quiet! To power the Leisure Playboy, Lanzo Bomber, Wasp and the many other electric R/C kits now appearing Leisure offers a complete line o f fine accessories includ ing chargers, battery packs, switches and connectors. on the market, Leisure offers its’ 500 Leisure’s total system approach to R /C electric makes it and 600 series 05 electric motors. Com easy to get into. I f you haven’t tried R /C electric flight pact and powerful, these economically you're missing out on a lot qffun! Leisure Electronics is the natural The Leisure 500 series 05 stock motors are choice for all your R/C electric require low priced but powerful. Available in direct drive and geared versions these motors are an inexpensive ments. Sixteen years ago we pioneered introduction to electric R/C. the use of electric power in R/C cars and The Leisure Playboy and the new airplanes and we have been constantly Lanzo Bomber are excellent R/C elec introducing new products to make your tric airplane kits for the beginner and electric R/C hobby more convenient more accomplished flyer alike. and exciting. See your R/C hobby Originally designed for free-flight, these dealer or send a stamped, self-addressed The Leisure 600 series 05 motors are ball bearing, business size envelope to us for our stable airplanes combine powerful take all metal motors. Also available in direct drive and eared versions, these motors deliver maximum power for latest catalog and technical bulletins. off and climb capabilities coupled with f>nger flights. minimum sink rates to give long, enjoy able flights and slow landings. For the priced motors are manufactured to pre more advanced flyer the Leisure Wasp cise tolerances and material standards to can accomplish aerobatic maneuvers insure maximum reliability and long life. Leisure within a small airspace - just the thing Think of it, no more hard starting, 22971 "B" Triton Way, Laguna Hills. CA 92653. for limited flying sites. troublesome engines and no oily mess to MODEL 0 NOVEMBER 1986 BUILDER volume 16, number 178 898 West Sixteenth St., Newport Beach, California 92663 Phone (714) 645-8830 CONTENTS STAFF EDITOR/PUBLISHER FEATURES Wm. C. N orthrop, Jr. GENERAL MANAGER W O R K B E N C H , Bill Northrop.......................................................................................... 6 Anita Northrop D E A R J A K E ........................................................................................................................... 7 ASSISTANT GENERAL MANAGER Dawn Johnson O V E R T H E C O U N T E R ................................................................................................ 8 ASSOCIATE EDITOR B IG B IR D S , Al A lm a n.......................................................................................................... 10 Richard Dowdy PRODUCTION ARTIST C H O P P E R C H A T T E R , Dick Grossman..........................................................................12 Kimber Jett-Baird S IM P L Y S C A L E , Cliff Tacie ...............................................................................................14 DRAWINGS BY Al Novotnik E LE C T R IC P O W E R , Mitch P oling...................................................................................16 ACCOUNTING MANAGER E L E C T R O N IC S C O R N E R , Eloy M a re z .......................................................................18 Robert Ruiz A T T H E N ATS, George P. Burdell..................................................................................... 2 2 OFFICE STAFF A. Valcarsel R A M B L IN ' W IT H R IC H M O N D , stu R ich m o n d ..................................................2 6 Mike Glenn B Y R O N FAN-FLY, Mark Frankel..................................................................................... 2 8 CONTRIBUTING EDITORS Al Alman Fred Lehmberg IN S ID E E N G IN E S , Mike B illin to n .................................................................................. 3 2 Mike Billinton Eloy Marez ENGINES OF THE WORLD, Stu Richm ond.......................................................... 3 6 Jake Doe Walt Mooney Jerry Dunlap Mitch Poling P L U G SPARKS, John Pond................................................................................................. 3 7 Bill Forrey John Pond Dick Grossman Fernando Ramos R /C S O A R IN G , Bill Forrey .............................................................................................. 4 2 Bill Hannan Stu Richmond E U R O P E A N S C E N E , Cees Kaijim ............................................................................... 5 0 Dick Hanson Ray Roberts Mike Hazel Dan Rutherford C 0 2 POWER, PART TWO, Bill Hannan................................................................... 51 Cees Kaijim Bob Stalick Joe Klausc C liff Tacie H A N N A N 'S H A N G A R , Bill H a nn an......................................................................... 5 6 ADVERTISING REPRESENTATIVES FREE F L IG H T , Bob Stalick................................................................................................. 5 8 Bill Northrop FREE F L IG H T S C A L E , Fernando Ramos...................................................................... 6 2 Home Office, Costa Mesa Al Novotnik FOR TEACHERS ONLY, Ray Roberts......................................................................... 6 3 4 Beverly PL, Norwalk, CT 06850 C O N T R O L L IN E , Mike H a ze l........................................................................................ 6 4 Bus. Phone (203) 847-7478 Al Tuttle PLANES A N ' FACTS A N ' CHICKUM TRACKS, Fred Lehmberg............... 6 6 417 Ehilani St., Pukalani, Maui, HI 96788 THREE-VIEW Ph. (808) 572-0563 MODEL BUILDER (ISSN 0194 7079) is pub MITCHELL W IN G B-10, Modelar Magazine............................................................. 3 5 lished monthly by RCMB INC., 898 West 16th St., Newport Beach, California 92663. Phone (714) 645-8830. CONSTRUCTION Subscriptions: $25.00 per year, $47.00 for two years. Single copies