MODEL BUILDER Volume 9, Number 89 $2.00 JUNE 1979
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MODEL BUILDER volume 9, number 89 $2.00 JUNE 1979 ISSN 0145-8175 • JEFF TRACY'S R/C CAP 20L-200 for big engines or reduction drives • MINI - R/C "LONGSTER" for CC>2 or .010 • "STOP THAT SAILPLANE!" • SC A LE VIEW S by WESTBURG Fokker D-VII 03 —» > “ I 0 \ 3 O U1 r* O U 1 7 *· o -t> 33 3 —· Φ *■< (V < — Φ ►—· CL 1 r+ • Φ P s* σ — — τ ο » CO — 3 1 < O VJ1 Φ O You’ve got the desire tobe a Champio n. control buttons and servo reverse 5 channel Helicopter sys switching. And serious fliers can also tem. Write now for complete appreciate our water and dust proof, dual technical data, because ball bearing S121 servos, modular RF the sky’s not the limit any boards and direct servo control. more. All J-scrici. system* uw q u id The J-series Futabas chance RF modules for bund an are available in 4.5,6 and modulation selection 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. Futaha’s J-xeries radio control systems are just that. Pure, state-of-the- art electronics with high-performance DM features like lull programming capability, L BATT dual mixing circuitry, roll and snap roll check R ' MU’I e rr 111 Model 5JH S 49.9: f φ / : Model 8JN/S799.9S ΊΠ .. We’ve got your radio. F t i t 'i h 'i F.asi Vietoria/Compton/CA/9022() K&B 3.5cc (.21) R/C INBOARD _ - holds every record! 15 events · NAMBA Class A How can one be better than perfect! K&B Engines hold EVERY RECORD in EVERY NAMBA INTERNATIONAL CLASS A EVENT.* K&B 3.5cc (.21) R/C HERE THEY ARE: OUTBOARD EVENT CONTESTANT ENG IN E C la s s A 1 A Hydro Dick Aubert K&B3.5CC (.21) 1/16 Mile 2 A Mono Ed Fisher K&B3.5CC (.21) Straight- 3 A Deep Vee Ron Erickson K & B 3.5cc (.21) a - w a y 4 A Outboard Hydro John Havens, Jr. K&B3.5CC (.21) 5 A Outboard Mono Hal Stata K&B3.5CC (.21) 6 A Hydro Ed Fisher K&B3.5CC (.21) C la s s A 7 A Mono Ed Fisher K&B3.5CC (.21) Oval 8 A Deep Vee Ron Erickson K&B3.5CC (.21) Heat 9 A Outboard Deep Vee Russ Moodie K&B3.5CC (.21) Racing 10 A Outboard Hydro Ed Fisher K & B 3.5cc (.21) 11 A Outboard Mono Carey Slavin K&B3.5CC (.21) 12 A Vi Hour Enduro Brian Dallas K&B3.5CC (.21) C la s s A 13 A 1 Hour Enduro Glenn Paykoff VeCoy 20.5 Enduros 14 A 2 Hour Enduro YKK Team Veco .19 15 A 4 Hour Enduro YKK Team Veco .19 * As of January 27th, 1979 Other K&B Records in NAMBA International Events are: 1/16 Mile Straight-A-Way 100 Lap Team Marathon B Hydro Don Pinckert K&B 6.5cc Don Pinckert & Ronnie Hodges K&B 6.5cc Oval Heat Racing B Hydro Ed Fisher K&B 6.5cc Enduros B Mono Ed Fisher K&B 6.5cc B Vi Hour Enduro J. M. Fraser K&B 6.5cc B Deep Vee Ed Fisher K&B 6.5cc B2HourEnduro Jerry Dunlap K&B .40 XH Hydro Bill Hornell Twin K&B 6.5cc B 4 Hour Enduro Jerry Dunlap K&B .40 CXSH Bill Hornell Twin K&B 6.5cc Send for complete detailed information K&B MANUFACTURING on Engines, Fuel, and Paint. Enclose S1.00 to cover postage and handling. 12152 WOODRUFF AVE., DOWNEY, CA. 90241 JUNE „ MODEL 1979 'BUILDER volume 9, number 89 621 West Nineteenth St., Costa MesA, CAliforniA 92627 Phone: (714) 645-8830 CONTENTS STAFF P U BLISH ER FEATURES Walter L. Schroder WORKBENCH, Bill Northrop................................... 6 ED ITO R Wm. C. Northrop, )r. OVER THE COUNTER, Phil Bernhardt ......... 7 R/C WORLD, Bill Northrop........................................ 10 GENERAL MANAGER Walter L. Schroder THE FLIGHT INSTRUCTOR, Dave Brown 20 ASSISTANT EDITOR R/C SCALE, Bob Underwood...................................... 21 Phil Bernhardt R/C SOARING, Dr. Larry Fogel............................ 22 ASSISTANT GENERAL MANAGER STOP THAT SAILPLANE!, Dave Thornburg 25 Anita Northrop R/C PYLON, Jim Gager................................................. 32 ART DEPARTMENT STRICTLY SAIL, Rod C a rr.......................................... 34 Chuck Blackburn FUEL LINES, Aldrich, Bernhardt. Klause................ 40 Al Patterson R/C POWER BOATING, Jerry Dunlap......... 42 OFFICE STAFF ELECTRIC POWER, Mitch Poling ....................... 44 Edie Downs Ceorgi Cilleran PLUG SPARKS, John Pond.......................................... 46 Pat Patton CONTROL LINE, Dan Rutherford ....................... 54 A. Valcarsel FREE FLIGHT SCALE, Fernando Ramos ......... 56 HANNAN'S HANGAR, Bill Hannan................ 58 CONTRIBUTING EDITORS FREE FLIGHT, Tom Hutchinson................................. 62 George Aldrich Mitch Poling Dave Brown John Pond VAMPS REPORT, Bill Stroman .............................. 69 Otto Bernhardt Fernando Ramos Rod Carr Larry Renger Jerry Dunlap Dan Rutherford Larry Fogel Ron Shettler Jim Gager Tom Hutchinson SCALE VIEWS Chuck Hallum Dave Thornburg Bill Hannan John Tucker FOKKER D-VII, Pete Westburg/Nick Karstens 36 Joe Klause Bob Underwood Walt Mooney ADVERTISING MANAGER Walter L. Schroder CONSTRUCTION CAP 20L-200, Jeff Tracy....................................................................................... 12 R/C MODEL BUILDER (ISSN 0145-8175) is published monthly by RCMB INC., 621 LONGSTER, Le Gray/Curtis Christen...................................................................28 West Nineteenth St., Costa Mesa, California, VALKYRIE .020 REPLICA, Rudy C alvo ...........................................................50 92627. Phone (714) 645-8830. PEANUT PEGNA P.C. 1, John W alker...........................................................59 Subscriptions $20.00 per year, $37.00 for two years. Single copies $2.00. Add $3.50 SEAGULL H.L.G., Jean Pallet............................................................................. 67 per year for postage outside of U.S. (ex cept APO and FPO). 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 COVER: With their lovely suburban Las Vegas home as the background, Mrs. Bill address takes effect. Send old address with (Sam) Bennett poses with her husband's CAP 20L, designed and built by Jeff Tracy new; old label preferred. Post Office w ill not and Garry Reusch of Australia, and flown in the 1978 Las Vegas Tournament of forward copies unless you pay extra postage. Champions by Jeff Tracy. Photo by Billy Root. Duplicate issues cannot be sent. Second Class postage paid at Costa Mesa, California, and additional offices. 2 R/C MODEL BUILDER Father & Son Special PurchAse A KrAft 7-chAnnel system and receive A 2-chAnnel system for only $29.95 AdditionAl! You save S100 on the regular $1 29.95 (ä ™§) 2-channel system by redeeming the Father & Son Coupon for a KP-2AS, KP-2AW, or KP-2A system on the frequency of your choice, postpaid from the factory. The KP-7CS and KP-7C are con test proven, sophisticated systems with a wide variety of options. The KP-2AS,KP-2AW, and KP-2A are the industry's finest 2-channel systems. QuAntities Are limited. Orders Are on A first come, first serve bAsis. See your participating Kraft dealer NOW ! W r i t e f o r F r e e C e t e lo g Kraft Systems, Inc, · 450 West California Avenue · Vista CA 92083 · PH. [714] 724-7146 O L D I E S (b u t s t i l l g o o d ie s ;) MOST BACK ISSUES OF "MODEL BUILDER" ARE STILL AVAILABLE, THOUGH SOME ARE IN SHORT SUPPLY. ORDER NOW, WHILE THEY LAST! PRICES VARY ACCORDING TO QUANTITY REMAINING IN STOCK. NOTE SPECIAL ANNIVERSARY PRICES LISTED BELOW! November 1971 December 1971 January 1972 Nancy. R/C »oarer. Curtiss-Wright Junior SHOCer F/F by Mel R 1C Pattern World R/C 2" scale. Schmidt. Championships. R/C Twin Trainer White Trash, famous IPeanut Fokker D V I. 75" span, for ,40's. R/C soarer. ILSF Tournament story. Peanut Laird LC-DC. Peanut Ord-Hume. BBi-Prentice, R/C bipe Volksplane 3V-1 Chet Lanzo's famous trainer. 3-views. rubber Puss Moth. How to build light Curtiss Robin 3-views. "wire" wheels. Vol. 1. No. 2 $3.00 Vol. 1, No. 3 $2.00 Vol. 2 . No. 4 $1.00 February 1972 Mar/April 1972 May 1972 Minnow U/C profile Yankee Gull R/C glider Seahorse II, R/C sea plane. For .19-.35. scale rac'. 8' to 12' span. D.H. Humming Bird. Fokker E-> iC scale. Miss Cosmic Wind, QM Al Vela's O Boy 1/2A R/C Pylon racer. F/F or R/C pulse. E-Z Bo- Q .A, Al Vela. Peanut Scale Bucker Peanut Fokker V-23. Peanu o^-d Flivver. Jungmann. Whetstone 1/2A U/C Fibe..^ sing over balsa, Siebel 1/4A F/F scale. combat. by Le Gray. Mr. Mulligan 3-views. Ryan ST 3-views. Spoiler, FAI Combat. FAI power "Folder." Tethered Cars, R/C sail. Vol. 2. No. 5 $3.00 Vol. 2. No. 6 $1.00 V ol. 2 . No. 7 $2.00 June 1972 July 1972 August 1972 Bob White Wakefield. Fairchild 51, 1" scale, Bonzo standr " R/C Mongster QM biplane R/C or F/F. sport p v ^ ic a le . R/C pylon racer. SAM-5 A/2 Nordic. Counterf' O ailless Calif. Coaster R/C 1912 Avro G rubber. A/1 Λ Jic. glider. Sheet wing. Comanche C stand-off Shoes· s / R/C QM. Three profile Peanuts. R/C scale. P e a r ^ aylorcraft on Deperdussin 3-views.