F-86 SABRE JET Powered By The Patented

BYRON ORIGINALS

Ducted Fan

M o d e l H PECIFICATIONS: • W in g S p a n ...... 5 7 " • W in g A r e a ...... 6 8 4 sq. in. •W ing Loading ...... 30 oz. psf. •L e n g th (M o d e l H ) ...... 5 8 % in. •L e n g th (M o d e l D ) ...... 6 2 V i in. Ready-to-fly w t ...... 11 lb. (Including Econokote covering & retracts) C h a n n e ls ...... 4 (5 w/retracts) Power. . . Byro-Jet & Schnuerle .60 & .80s

Another Rare Blending of Value And Performance From the Ducted Fan Specialists! Our experience and knowledge in state-of-the-art ducted fan technology has produced another fascinating super scale jet experience . . . the world famous F-86 Sabre. Unlike most other ducted fan kits on the market, this 1/8 scale Byro-Jet powered fighter offers a whole lot more kit for your money. Every item needed to complete the project is in­ cluded, except of course the engine, fan, radio, paint and glue. We call this approach our "Complete Kit Concept." Each and every component has been specially designed, manufactured or purchased to meet our specific quality, performance and dependability requirements. Kit in­ cludes: a highly detailed fiberglass fuselage, injection molded wings and control surfaces, precise die-cut wood parts, wheels, landing gear, cockpit interior, canopy, decals, plus all the assorted hardware required. Unique Plug-In Wings & Aileron Linkage system are also standard equipment. They make removing wings for transport a quick and simple operation. Optional Quick-Connectors, another Byron Originals ex­ clusive, makes hooking up your pneumatic retracts as simple as plugging in the wings. All things considered, the F-86 is indeed a product truly deserving of the Byron Originals' trademark. For further details, send $2.00 for complete F-86 information packet. Includes materials list, assembly manual with drawings, Byro-Jet per­ formance data plus a list of suggested engines.

Optional Sequencing Door Kit & Quick Pneumatic Connectors.

Factory Plus Ite m Description Price Shipping Available 6 1 3 0 0 8 5 F-86D kit $245.00 $8.50 For Immediate 6 1 3 0 0 8 6 F-86H kit $240.00 $8.50 6 0 3 0 1 9 8 Opt. seq. door kit $ 66.30 $2.00 Shipment 6 0 3 0 2 0 3 Quick Pneumatic connectors $ 22.10pr. $1.50 (U.P.S. orU.S. Mail) (2 pr. required for 4 line systems) (Continental U.S.) Sorry, No. C.O.D.s Accepted Byron Originals, P.O. Box 279, Ida Grove, la. 51445 U.S.A. 712-364-31 65 TELEX 43901 2 IDAG Three Bucks Buys the Best R/C Catalog In the Business

The catalog that everybody's been talking about is now available at your favorite R-C dealer. You'll find 80 pages of color photos, complete descriptions, and all the technical information you need. It's the complete collection of all of our exciting lines.

If your dealer doesn't have them in stock, tusk him to get you one from his distributor. But hurry, supply is limited, and this is one catalog you don't want to be without.

Exciting, innovative designs that put you in complete control. Even kit features Plura ready-made fuselages and ^ Siros wing panels. Robbe airplanes * and gliders SHIPS build up fast, look great. ^ Ä and outperform just about a n v th in g ^ M j^ ^ _ else in the air. There's something for evenone. Yachts, scale tugs, sail boats, luggers, fire-fighting boats, and more. . . all designed with the emphasis on detail. Whichever Robbe boat you choose, you'll get a proven winner that steals the show even time.

ACCESSORIES

Look at our complete selection of accessories. High performance motors, special fittings, starters, quick chargers, propellers., .even thing you need. You'll even find an exciting line of sound effects generators for extra realism.

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ROBBE MODEL SPORT. Princeton Meadows The Office Suite 21) Plainsboro. \J 08536 NOVEMBER

M ODEL S 1983 BUILDER volume 13, number 142 621 West Nineteenth St., Box 10335, Costa Mesa, CA 92627-0132 Phone: (714) 645-8830

STAFF CONTENTS EDITOR/PUBLISHER Wm. C. Northrop, Jr.

GENERAL MANAGER FEATURES Anita Northrop

ASSISTANT GENERAL MANAGER W O R K B E N C H , Bill Northrop...... 6 Dawn Johnson

O VER THE C O U N T E R ...... 7 PRODUCTION MANAGER Bill Forrey CHICOPEE '83 NATIONALS, Bill Northrop...... 16 PRODUCTION ARTIST BIG BIRDS, Al Alman...... 24 Howard Millman R /C S O A R IN G , Bill Forrey...... 28 DRAWINGS BY Al Patterson ELECTRONICS CORNER, Floy Marez...... 31 ACCOUNTING DEPT. MANAGER ELECTRIC P O W E R , Mitch Poling...... 32 Michael Whitney SUBSCRIPTIONS R/C SCALE AT M AAC NATIONALS, CliffTade...... 34 Jo Anne Glenn FUEL LINES, Joe Klause...... 36 CONTRIBUTING EDITORS PLU G SPARKS, John Pond ...... 37 Al Alman Eloy Marez C H O PPER C H A T T E R , Ray Hostetler...... 42 Jerry Dunlap Walt Mooney Bill Forrey Mitch Poling R /C BO A TS (N A M B A N A T IO N A L S ), |erry Dunlap...... 44 Bill Hannan John Pond R /C C AR S, Dan Rutherford ...... 48 Dick Hanson Fernando Ramos Mike Hazel Dan Rutherford H O W T O FLY PATTER N, Dick Hanson...... 50 Ray Hostetler John Smith H A N N A N ’S H A N G A R , Bill Hannan...... 54 Ken Johnson Bob Stalick Joe Klause FREE F LIG H T, BobStalick...... 56 ADVERTISING C O N T R O L LINE, Mike Hazel...... 60 REPRESENTATIVES BLAD D ER G RABBER C /L C O N TE S T, Rich von Lopez...... 62 Bill Northrop Home O ffice, Costa Mesa Al Novotnik 4 Beverly PL, Norwalk, CT 06850 CONSTRUCTION Bus. Phone (203) 847-7478 MODEL BUILDER (ISSN 0194 7079) is H A W K E R FURY, M A R K II, Don Prentice...... 10 published monthly by RCMB INC.. 621 West 19th St., Box 10335, Costa Mesa. FLY IN G FLEA, Randy Wrisley ...... 26 California 92627-0132. Phone (714) 645-8830.

A R U P O .T ., Cordon Englehart...... 40 Subscriptions: $25.00 per year. $47.00 lor two years. Single copies $2.50. Subscriptions PE AN U T T A Y LO R C R A F T , HobyClay ...... 51 outside the US (except APO & FPO) $32.00 for one year only. All payments must be in US funds, drawn on a US bank.

Copyright 1983 by RCMB INC. All rights reserved. Reproduction without permis­ Cover: The aircraft on this month's cover are Hawker Furies (Mark II versions). sion prohibited. Model Builder's cover artist. Bob Benjamin, had to conceive and execute the painting on very short notice, and actually received part of the necessary reference data Change of address notices must be received after he began work on it. (Technical nitpickers w ill have fun with this one.) The six weeks before date of issue that new markings are correct for the No. 25(F) Squadron, Hawkinge, for the year 1937. address takes effect. Send old address with The black tail markings on aircraft No. 7270 denote the squadron leader's plane. new; old label preferred. Post Office will If this painting has inspired you to build a Hawker Fury Mk. II, you are in luck, for Don Prenticehas prepared plans and construction article for a quarter-scale ver­ not forward copies unless you pay extra sion of the Fury. See page 10. Detailed scale drawings are also available for the postage. Duplicate issues cannot be sent. Fury through M o del B u ild e r. . . see the Westburg ad on page 79 of this issue. Second class postage paid at Costa Mesa. California, anti additional offices.

2 MODEL BUILDER G-SERIES ALL THE OPTIONS... Sportand competition flyers know our G-Series systems come equipped. Now G-Series v ä » systems have more control than ever, with the introduction PLUS SOME olourS28sems NEW STANDARDS Sheathed in fuel proof cases, with cold- molded, resin gears and a maintenance-free, sealed potentiometer, these S28’s have set new standards for servo performance. You'll also get top performance from our l/røft fully-adjustable, open gimbals, R7H receiver, a new, 7-channel version of our mixing and a choice of dual or exponential popular R6F. Proven electronics and reliability rates, the amazing G-Series has what it takes make the R7H perfect to complete the G-Series to put the finishing touches on some very system. fancy flights. 5, 6 and 7-channel Futaba G-Series systems Convenience also figures into the G-Series are now available with S28 servos and the R7H design, which includes all-channel servo re­ receiver in the new 72MHz FCC approved fre­ versing as well as built-in stand, NiCad battery quencies, including a 53 MHz (FM) RF mod­ metering and antenna storage. ule-equipped version. a u fn 555 West Victoria Street/Compton, CA 90220 STUNT CONTROLINERS FROM SIG KIT CL-2I MUSTANG STUNTER SPEEDY CONSTRUCTION! WITH MOLDED PARTS AND FOAM WING CORE The classic lines of the P-51, top fighter design of World War II, have been blended with the ideal control line stunter layout to produce this aerobatic show-stopper. Low work-shop time because of the precut foam wing, ready-made molded plastic fuselage top, molded lower scoop and molded plastic cowling. It's easy to duplicate the realistic appearance of the pro­ totype model. Responsive flight performance makes the Mustang a tough competitor. ENGINES: .29 - .40 Designed by WING AREA. 480 Sq. In. WING SPAN: 50 In. MIKE GRETZ WEIGHT: 41 Oz. SUPER CHIPMUNK We’ve been selling this model for many years and it has become a classic in the CL Aerobatic field. Dave Fitzgerald took 1st place at the nationals for five straight years (1976-1980). Others have won with the design regularly at contests. That doesn't mean you have to be a top competitor to fly the Super Chip for it is not difficult to handle. Plastic cowl, plastic wheel pants and a colorful decal sheet dress up the air­ craft without a lot of extra workshop time. Heavy duty nylon bellcrank is supplied. KIT CL-19 Designed by WING SPAN: 53-1/2 In. ENGINES: .29 - .40 MIKE STOTT WING AREA: 575 Sq. In. $47.95

THE BIGGEST LITTLE STUNTER AVAILABLE AKROMASTER If your need is for an economical start in CL aerobatic flying, you can’t do better than this little gem. Patterned after larger CL stunt models and incorporating the lines of a famous full-scale aerobatic aircraft, it is one beginner's design that doesn’t look as if it was made from part of an orange crate. All of the features and fine performance found on other Sig CL stunters. Supplies are: Shaped fuselage, die-cut parts, shock absorbing landing gear, formed clear plastic canopy, nylon bellcrank, nylon elevator horn, hardware, etc. KIT CL-20 Designed by WING SPAN: 34 In. ENGINES: .15-.19 MIKE GRETZ WING AREA: 250 So. In.

AN EASY-TO-BUILD PROFILE TWISTER MODEL FOR AEROBATIC TRAINING While this model goes together faster than competition type stunters with built-up fuselage, it yields little to them in the way of performance. The coupled wing flaps deliver the same responsiveness and precise maneuvering capabili­ ty. Kit features include a pre-shaped balsa fuselage profile die cut fuselage doublers, die cut wing ribs, plywood wing tips and a hardware pack. You'll get into the air fast with a Twister and soon will be doing the full pattern. KIT CL-22 Designed by WING SPAN: 48” In. ENGINES: .29 - .40 MIKE GRETZ WING AREA: 490 Sq. In.

COMBINES SEMI-SCALE APPEARANCE WITH AN IDEAL STUNT CONFIGURATION AKROBAT Czechoslovakia’s famous Zlin has been a star performer at many full-scale World Aerobatic Championships. The lines of this ageless aerobatic performer have been blended into our CL stunt version. Full size plans detail the light but strong built up balsa construction. Among things provided the builder are a heavy duty nylon bellcrank, a nylon elevator horn, nylon flap horn, formed landing gear, molded plastic cowl, clear bubble canopy, lead out wires, a hardware pack and decals for decoration. KIT CL-16 Designed by WING SPAN: 5J In. ENGINES: .29 - .40 MIKE STOTT WING AREA: 550 Sq. In.

See your dealer first! For direct orders, call toll free 1-800-247-5008. For mail orders, add $1.50 postage under $10.00. Over $10.00 postpaid. No C.O.D. Catalog 45 - $2.00 H \ I Í W r SIG MANUFACTURING CO., INC...... Montezuma, IA 50171 ^siGsr BUY FROM AUTHORIZED SIG DEALERS ^sigst

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Eighth St 6914 E Admiral Place PUYALLUP 604 C Strået 272 1043 FLORIDA DCS MOINES 3417 So Wfslnedge NEW YORK OREGON Fnpuve Model Supply 4211 SpenardRoad BRADENTON Iowa Service Company LAPEER BROOKLYN CORVALLIS 10611 136th St East 3521 Mt Vew Drive Semaphore Hobby Center 2706 Beaver Ave Pipps Hobby 4 Toys Brooklyn s Model Masters Trump'» (OJ'») Hobbes PM 845 7675 8225 Otd Seward 1838 14th Street West WATERLOO 112 W « t Repressing St 1307 Gravesend Neck Roed 1875 N W 9th St SEATTLE ANCHORAGE CAPE CORAL Bob's R C Supply PONTIAC PH 212 339 9250 PH 503 753 7540 Webster Supply Co Hobbvcratt Inc A 4 J ModeH. Inc 432 Ardmore RC Hobbes BROOKLYN PORTLAND 17818 Aurora Ave N 800 East Ormond Btvd 1928 Del Prado Btvd WATERLOO 921 Huron Walt's Hobby Shop Strictly R.C TACOMA Suite 136 CAPE CORAL Howard » Hobby Shop ROCHESTER 7909 5th Ave 7868 S W Capitol H«hway ARIZONA Bill s Hobby Town Unde Bob's Country Stor# 110 East 4th Tracks«* HoObes PH 212 745 4991 PENNSYLVANIA 14914 PecAc Ave PHOENIX Hobby Supply KANSAS 418 Mam Street DEPEW ARDMORE E u le r Hobbies PH 2 0 6 5 3 1 8 Π Ι 4 7 3 0 0 S E IS thAve KANSAS CITY SAGINAW Depew Hobby Center Ardmore Hobbes WALLA WALLA 3285 E McOoweORd PH 813 9450900 RC HOBBIES Tait's Hobby Shop *2 5866 Transit Road 19 A Wood»«* Ave Hartey's R.C PHOENIX JACKSONVILLE 5620 SUta Ave C 326 Fash on Square Mali PH 684 5555 BATH The Hobby Bench Route 1 Box 277A Fwiďs Hobby Shop. Inc LIBERAL SAULTST MARIE EAST ISIIP Trech R C Hobbes 19th Avenue 4 Northern PH: 509-529-2618 1096 On ta r« Street Mater's Bike 4 Hobby Shop Pmnade Hobby Shop Hobby World RO 1 Bo* 262 WEST VIRGINIA PHOENIX LEESBURG 105 E Seventh 129 E Portage Ave 232 E Mam Street BATH CHARLESTON Hobby Bench Top Vakre Hobby WICHITA TAWAS CITY PH 5162 77 44 99 Dek Wetzer* Hobbes Fountain Hobby Canter Paradise Valley Mall 2740 North Hwy 441-27 The Hobby Shop Greet L ak « Modal 4 Mold Co ELMSFORO 514 E Mam St 200 W Washington St 4550 E Cactus Rd Fruit land Park Plaza 954 South Ohvw 412 Margo Street Andy's Hobby Shop PH 2158376681 SEDONA MELBOURNE KENTUCKY TRAVERSE CITY 36 Mam Street LANCASTER MARSHFIELD My Hobby Shop Erne'» Hobby Shop LEXINGTON Ray s RedtoControi Shop KINGSTON The Fight Boi Mto Wisconsin Hobby Canter Smith·» Corner 631 ApoMo Btvd X-Cefl Models. Inc 517 So linen J 4 J's Hobbes. Inc Lancaster Shoppmg Canter PH «02 2821290 MIAMI 347 Easttand Shoppmg Ctr PH 616947-4949 785 Broadway LANSOALE TUCSON 503 E Ives St Crown Hobbes PH 6 0 6 2 54 24 06 UTICA RICHMOND HILL Penn Valley Hobby Ctr ML ΝΟΜΟΝ IF Tucson Hobby Shop 7439 Coral Way LOUISIANA Henderson's Hobbes Wilson Hobby 837 W Mam St True Value Hardware 4352 E Γ MIAMI BATON ROUGE 2441 Auburn 10440 Jamaica Ave LEHIGHTON 1512 9th Street Orange Blossom Hobbies. Inc Hobby Town# WARREN ROCHESTER L-Mart Shopping Ctr FAYETTEVILLE 1975 N W 36th Street 3112 CoOage Drive Suite A Prop Shop Hobbes Oan's Crafts 4 Things Rt 5 Box 337 Coffer's Air Crafts MILWAUKEE ORLANDO MAN06 VILLE 23044 Van Dyke 352 Empire Bh-d MILTON Casanova's Hobby 1610 Foxhunter Road Bob's Hobby Center. Inc Mercury Hobbes Inc 1 Stock N Of 9 MJe ROCHESTER Kreb s Newstend LITTLE ROCK 1423 S MvsKsgoAve 7333 Lake U nder** Road Rt 6 Box 734A WYANOOLLE G 4 G Hobbes 83 Broadway Sherr.it » House of Hobbes PH 4 1 48 72 2700 PENSACOLA METAIRIE Stoner Hobby Canter 1339 Dewey Ave. PITTSBURGH WAUSAU 3408 S University Ave Bob·» Hobby House M 4 M s Hobby Art 4 O a tt Ctr 145 M ap* St SYRACUSE 4 Walt » Hobby Shop Hall Plaza Shoppmg Center Pope s Hobby Land 5719 North W Street 5229 Veterans Bhrd PH 31 32 83 23 55 Watt s Hobby 4 Craft 116 SmithfekJ St PH 5628230 640 South 3rd Ave PLANTATION NEW ORLEANS MINNESOTA 4300 W Genesee St READING CANADA NORTH LITTLE ROCK Universal Hobbies Pet 4 Hobby Center BEMIDJI UTICA Iron Horse Hobby House BAWLF ALBERTA Mediio Hobby House 141 South State Road 7 4035 Touro Street Hobby Hutch American Hobby 4 Sports 60 South 6th St 4212 McArthur Drive Θ 4 P Transport Ltd POMPANO BEACH WESTWEGO Paul Bunyan Mall 2107 WhUesboro Street READING CALIFORNIA Boa 6 Trade N Hobbes Clark's Hobby 4 Craft Canter BLOOMINGTON PH 315 7244959 Ott s Hobbes BURBANK PH 373-3953 2159 S E 9th SI 729 Westbenk Expressway Joey's Hobbes 4 Crafts NORTH CAROLINA 536 N 10th St CALGARY ALBERTA T 4 A Hobby Lobby SARASOTA MAINE 7935 Southtown Canter CHARLOTTE SLATINGTON 3512 W Victory Btvd H 4 H Hobby Sales WATERVILLE CRYSTAL Respcep Inc Scence Hobbes Valley Hobbes 4 Cof*c1ib*s COVINA Bo* 968 Sin M 4121 S Termám· JFK Hobby 4 Craft Ctr Inc Crystal Schwinn Cyciery 2615 Central Ave 102 Mam Street CALGARY. ALBERTA Covina Hobby Center SOUTH DAYTONA JFK MaU 6324 Bass Lake Road EDEN WARMINSTER 140 N Citrus P M S Hobby Craft Ace Hobbies MARYLAND DULUTH Coke's Fu-it 4 Hobby Shop J C RC Hobbes Calgary North ΗΛ Centre PH 331 1910 2133 So Ridgwood Ave WALDORF Carr» Hobbes Rt 2 Bo*2 2 2 13 York Road WINNIPEG MANITOBA EL CAJON PH 904 7619780 Doug's Hobby Shop 2014 West Superior Street PH 919627-0166 PH 21 36 72 5200 Mike's Model Shop Cellar Dweder Hobby. 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ONTARIO MARIETTA Enc Fuchs Hobbies PH 612 4896060 Berne's Craft 4 Hobbes, Inc Ph 80 3 2338 32 0 or 242 4229 14106 Hawthorne Btvd Skyer an Hobbies Inc Complete Model Supply Burlington Mali MISSISSIPPI 2291 English Road MYRTLE BEACH LAKEWOOO 139 York Road West»«de Shoppmg Canter CHICOPEE BILOXI KING Ed's Hobby Shop SCARBOROUGH ONTARIO 806 Sandtown Road J 4 JHobbes Chuck's Hobbes King R C Hwy 501 Next to Fenioy Toronto R.C Hobby ROSWELL 133 Fronterne Street 50? Edgeweter Gu« Dr. C-3 0*d Hwy 52 Sign Company 1869 Lawrence Ave E Tommy's Hobbies PH 413-592 1472 PM 601 3886346 PH 9833969 TENNESSEE PM 4167551766 Mghway 19 CHICOPEE OXFORO WINSTON SALEM KNOXVILLE 17S6 Fest Street WILLOWDAIE. ONTARIO Brannon Square Paul's Hobby Shop Creative S ourt« The Hobby Corner Tennessee Model Hobbes Keith » Hobby Shop PH 4 1 3 4 43 58 28 SMYRNA 776 Britton Street 1010 Jackson Ave 1 3 6 0 Oakwood Drive Rt 62 Oak Ridge Hwy Solway LOMITA 5205 YorwaSt Hobby Junction PH 413536-4663 MISSOURI NORTH DAKOTA The Flying Machine Mode« Cl PH 6 1 54 82 2900 P H 2224721 3260 South Cobb Drive EAST LONGMEAOOW GRANDVIEW GRAND FORKS NASHVILLE 2441 S Nerbonne Ave ARVIDA. QUEBEC VALDOSTA BiH's Hobby Supplies Flo-Mow Co McGiftm» Hobbes Unlimited MT VIEW The Toy Mart LeMode* Reduil Enr. Jim's Hobby Shop 600 N Main Street 700 Blue Ridge Ext 1228 9th Ave S San Antone Hobby Shop 113 Grayfynn Drive 118 Mathias CP 341 North»«* Plaza PH 41 37367711 LEE'S SUMMIT PH 701 772 5311 Sears Shoppmg Cent*! PH 6 1 5 8 8 3 1648 PH 4 1 6 5 48 21 36 PH 912 2448991 FITCHBURG Blue H ill« Bike 4 Hike. Inc. MINOT PH 413941 1278 TEXAS HAUTE RIVE. QUEBEC HAWAII McMannus Hobbies 4 Novel 229 S Mam Aeroplane Factory HobbyShop N0RTHR1DGE ARLINGTON Le Centre Du Modcf.ste HONOLULU 633 Mam St ST CHARLES M not Inti AwpOrt Smith Brothers The Hobby Hub Allard 1223 Lestrat Hobbwtat FRAMINGHAM Mark Twain Hobby 4 Craft W1LLIST0N 8941 Reseda Btvd 903 A Pioneer Parkway West MONTREAL. QUEBEC 1423 Tenth Avenue Fisher R-C 1355 S 5th Tn County Glass 4 Hobbes AUSTIN Can Aar Hobbies SACRAMENTO ILLINOIS 17 Salmi Road St Char*» Shopping Canter 103 22nd St W «! Graphic Hobby House J 4 J Hobbes 5850 Goum Btvd Ouest 8ELL VILLE PEA0OOY MONTANA OHIO 2610 Marcom Ave 610 Kenrvston Dr PH 514-332-3565 West Side Hobby Enc Fuchs Hobbies GREAT FALLS BEAVEROAM CORPUS CHRIST I SAN BERNARDINO SASKATOON SASKATCH 2629 West Mam Street Norlhshore Shoppmg Center Hobbyland Buckeye Hobby Shop Harper s Hobby Shop leisure Time Hobbes CoOm»' Aero Craft CHICAGO WORCESTER 811 Central Ave 7940 Lugatkl! Road 222 No G St 1326 Arrlm# 238 Fast Ave North Stanton Hobby Shop Ray’s RC Specielt·« NEVADA BERLIN HEIGHTS DENTON SAN FRANCISCO PH 6 5 2 4 775 4734 N Milwaukee Ave 12 Sherman St LAS VEGAS Darnel's Hobbes Franciscan Hobbes YORKTON SASKATCH CRYSTAL LAKE PH 757 5883 J J l Hobby Den 36 Center Street 1935 Ocean Avenue 117 W Hickory Rad« Control Hobbies Frank's Barber Toy 4 Hobbes WRENTHAM 4972 S Maryland Parkway« BROOKVILLE EL PASO SAN JOSE 39 Satis Ave 111 113 North Mam Street B's Tire 4 R C Hobbes NEW HAMPSHIRE Country R C Hal's Hobby Shop Chuck Sheldon's Hobby Shop AUSTRALIA PH 81 64 59 02 47 383 Burnt Swamp Road KEENE 12490 Amity Roed No 57 Sunnsa Canter 3157 Aium Rock SYDNEY. N S W GLENVIEW PH 617 384-8237 Leisure Time Hobbes SANTA BARBARA CLEVELAND PH 91 37 53 19 14 Pyrmont 2009 Nipper'» Toys 4 Hobbes MICHIGAN 322 West Street The Hobby House. Inc FORT WORTH 1314 Waukegan Road ANN ARBOR LITTLETON 800 Huron Road Bur me* 14 W Anepamu Street Mott s Hobby Shop 137 Pyrmont Street PH: 312 724-2040 Rider'S Hobby Shop Hobby Land CLEVELAND PH 8 0 3 9 63 34 04 7241 Grapevma Hghwey PH 02 )69 20 69 4 GREENVILLE 115 W Liberty 101 Union Street National Hobby. Inc. PH 817 281-0921 SANTA MONICA BRISBANE QUEENSLAND WW-O’-Th'-Wmd BATTLE W EEK NEWINGTON 5238 Ridge Road Evett's Model Shop HOUSTON Underwood 4119 603 H arm Ave Hobby House Eric Fuchs Hobbes FINDLAY 1636 Ocean Park Bhrd Dear Lake Models The Hobby Warehouse McHENRY 1035 W Territorial Rd Fox Run MaU Jmx Model Supples PH 21 34 52 2720 117 Camino S Shoppmg Ctr 30 Kingston Road The Hobby Hangar PH 964-9105 NEW JERSEY 721 Rockwell Ave SANTA ROSA PH 71 34 88 63 15 COLUMBIA. S AMERICA 5515 No WWnot Rood CADILLAC EDISON LAKEWOOO Toy 4 Model HURST Aeromode to» Britannia Ltd» PH 312-497 3103 The FVght Canter C J R C SUPPLY Wings Hobby Shop Inc Roy's Hobby Shop Apertado (P 0 Boa) 52530 711 * * ■ MURPHYSBORO 916 S MitcheN 17112 Detroit Ave 250 Ptamfeid Ave Bogota 2. Columbia RJ Hobby 4 EWc Cantor CLAWSON PH (201) 9858660 PH 221 5383 FT AH AURORA i 1508 Walnut Street Ν « * » Pet 4 Hobby MARITON PH 212 7309 Tom Thumb Hobby Center LANCASTER OREM NEW ZEALAND PH 618687 1981 1139 W 14-M i* Road Mi Fly Hobbes Slater's Inc 10718 E CoKai Mmeture A ra a ft Prod INVERCARSILl OAKLAWN COLDWATER 1 W Mam Street Plaza Shoppmg Center PH 3033 61 61 59 8 1 1 W 400 N Model Shop Pat s Hobbes 4 Crafts Hobby Heaven POMPTON PLAINS 1141 N Memorial Dnve COLORADO SPRINGS 55 Arcade Dee $t 5730 W 95th Street 7 S Monroe Street Hobby Hut LIMA SW ANTON Custom Hobbes PH 39439 PH 424-6131 PH 517-2785694 567 Route 23 CaUahan Hobbes The Hobby Shop 2813 E Platte Ave VENEZUELA QUINCY PH 201835-2077 GRAND JUNCTION DEARBORN 1229 E Elm St RFD 1 Rt 7 CARACAS 10 70 A Qumcy Hobby Center RAMSEY MANSFIELD PH 802-524-2715 Aero Rail Hobbes Joe's Hobby Canter Hobby World C A (Otst 1 MS2 m j μ Mi Way Hobby House TOP Flit· 1141 N 25th St 7845 Wyoming Ave Aperedo Postal 73054 ROCKFORD Rout· 17 15 N Mam Plaza 25 PH: 31 39 33 65 67 PM .02) 34 3 3 0 2 Rockford Hobbes, Inc GRAND JUNCTION 615 N Prospect Street The Hobby Hut 1125-27 N Ave

DEALERS: Write For Details On How Your Name Can Appear In This Column

NOVEMBER 1983 5 A t the close of the R/C Scale event during the 1983 Nationals at Westover AFB, Chicopee, / > o m Mass., Granger Williams (second from left) donated his Gee Bee "Z " model to the Springfield Science Museum. Gladys Granville Jones, sister, and only remaining member of the Granville Bros, generation, accepted the model for the museum. Granger's brother Larry is third from Bill left, and Don Foster, who has campaigned vigorously for the museum is at far right. N o r t h r o p ' * to just anyone who writes in on a letter­ positive actions than Sig to insure that head. We have what we think are rea­ only legitimate hobby dealers are served. sonable requirements for dealership 3) Occasionally we receive a com­ w o r k b e n c h and safeguards against false dealers. ment from a dealer who feels that Sig Sometimes dealership applicants are should not sell direct from the factory to irritated by our ‘red tape' forms and the retail customers. We would prefer not to A SALUTE TO SIC information they must provide to be­ do this if a Sig dealer were available to Model Builder magazine has always come a franchised Sig dealer. In the long every model builder. But in rural areas, believed that the future of the model run, thoughtful dealers are convinced overseas and in towns where there is no industry, and therefore the hobby itself, that this process is in their own best Sig dealer, there are many modelers depends on the continuance of legiti­ interests. We believe that no other mate and healthy local hobby shops. It model wholesale operation takes more Continued on page WO has always strived to support the dealer, even to the point of passing by valuable advertising revenues from companies that provide stiff competition to the shops, but do little to promote and develop the hobby in the grass roots, where it gets its start. For this reason we are "letting the modeler in " on an open letter to hobby dealers which was re­ cently issued by Sig Manufacturing, explaining the facts about Sig marketing policies. We felt you all should read it. "We have received several inquiries recently asking if our discount policy was still the same as in the past. The calls were evidently triggered by the ads of some Sig mail order dealers who offered larger discounts than usual on Sig kits. These unusually large discounts were made from the same base prices avail­ able to all Sig dealers. No special con­ sideration or ‘extra’ discount was given by the factory to the dealers who adver­ tised these low prices. We assume their philosophy in doing this is similar to the Dear lake: Dear Dropping Out: so-called ‘loss-leaders’ common in I quit. Yesterday, I was on my way How much do you want for the pick­ supermarkets, where an unusually low home from the flying field. I had my up? —Jake price is used as an eye-catcher and traffic airplane, transmitter, and field box in ★ ★ ★ producer. the back of my pickup truck. I came Dear lake: “ The following are long established across a young sailor hitchiking, so I Do you accept letters from modeler’s and continuing Sig policies. stopped to give him a lift. He smiled, wives? I hope so. My husband is the “ 1) We have one discount schedule picked up his duffel bag, and tossed it original Vanishing American, [very only. All Sig dealers, from the smallest to into the back of the pickup. Needless to night, after supper, he vanishes into the the largest, receive exactly the same say, it squashed my airplane flatter than a basement, and I don’t see him again terms. When you are a Sig dealer you (ritter. I give up! That's the fourth until Johnny Carson’s monologue. The have assurance that no other dealer airplane this month. I don’t need all this kids don't recognize him anymore. They anywhere can get a lower discount on aggravation. As of this moment, I’m out keep asking who the stranger at dinner our line of products. of the hobby, and all my stuff is for sale. 2) Sig does not sell at wholesale prices —Dropping Out in Delware Continued on page 70 6 MODEL BUILDER OVER THE COUNTER

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AH material published in "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, nor any assur­ ance as to its safety or performance by R/CMB.

• Buzz Waltz R/C Designs, 403 Indus­ trial PI., Palm Springs, CA 92262, is proud to announce the second in its series of trainer kits, the Begin/Air .40 Trainer. The Begin/Air Trainer has been de­ signed around the H.B. .40 R/C engine, which provides plenty of power for this 72-inch trainer. It can be flown with either three or four channel control, Buzz Waltz R/C Designs Begin-Air Trainer for .40-size engines. (rudder, elevator, throttle; or rudder, elevator, ailerons and throttle). With its Tech International, 48500 McKenzie Photo Packet No. AM -7: six black and flat-bottom airfoil it is an excellent Hwy., Vida, OR 97488 has just an­ white detail shots, including instru­ trainer for the first time pilot. The wing nounced the first of a new series of scale ments. span measures 72 inches for a total wing documentation packets with the intro­ All photo sizes are 3-1/2 x 5-1/2-inch. area of 760 sq. inches. The fuselage is duction of the Mudry CAP-21. If you were toorderall packets separate­ 53-1/2 inches long and three inches The CAP-21 document packet in­ ly, you would have a $37.60 value . . . wide at the cabin, givingample room for cludes three 11 x 17-inch three-views however, Repia-Tech is now offering a radio gear. Flying weight is 6-1/2 lbs. (on four sheets) which show the paint "Special Total Packet Price,” No. AMSP, The kit includes precision cut balsa schemes for three CAP-21s: F-WZCF1, for only $29.50 postage paid. and plywood parts, glass-filled nylon F-GAUP, and F-GAUK. These drawings For more information on this packet engine mount, dural main gear with include cross-sections and other details. or other available from Repla-Tech, axles, assorted hardware, plus full-size Other total packet items include; write to the above address or call (503) rolled plans and step-by-step instruc­ Photo Packet No. AMC-9: thirty color 822-3280. Ask about the various catalogs tions. photos of CAP-21 No. F-WZCH, an available for planes, ships, armor, card Kit price is $44.95 and is available only extensive study. models, books, combination of all cata­ from Buzz Waltz R/C Designs. For Photo Packet No. AMC-10: five color logs ($6.00), and MAP drawings. information, write to the above address. photos of CAP-21 No. F-GAUP. ★ ★ ★ ★ ★ ★ Photo Packet No. AMC-11: seven Now let’s hear some good news for Attention R/C scale modelers! Repla- color photos of CAP-21 No. F-GAUK. our R/C boating friends! K&B an-

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Fourmost Products Redi-Hinge, 1/4-inch size.

7 NOVEMBER 1983 K&B Manufacturing, Inc., 11 cc (.67 ci) Inboard Engine. Engine mount for the Enya 4-cycle .90 by Tatone Products.

nounces its newest marine engine, the airplane? Have no fear, Jersey Metal K&B 11cc (.67 ci) Inboard Engine. This Spinning, 1400-G East St. Andrews Place, new engine is also K&B’s largest marine Santa Ana, CA 92705, (714) 957-0794, can engine. custom make it for you! Here is a list of the Inboard’s features: Jersey Metal Spinning would like a rugged, investment cast, one-piece individuals and kit manufacturers to be crankcase with a built-in, water cooled aware of (he service it is offering. JMS exhaust flange; water cooled cylinder will be manufacturing custom made head; ABC piston and sleeve; K&B’s spinners and cowlings with backplates Quintuple Schneurle Porting; a brand- out of lightweight durablealuminum for new carburetor with snap-in detachable your model airplane. Your spinners and venturi; brass flywheel (an aluminum cowlings will be made according to your flywheel is an available accessory. Stan­ drawing and instructions by highly dard equipment includes: two exhaust skilled craftsmen. Modelers will be adapters (12 degree and 20 degree); a pleased with the authentic appearance collet-type cable drive nut; and K&B's of the aluminum spinners and cowlings super high speed ball bearing. which can be finished to your liking. As you can see, the new K&B Inboard For more information and prices, Engine (#5100) has a lot to offer the R/C please write or call Jersey Metal boat modeler. If you would like addi­ Spinning. tional information, please write to K&B ★ ★ ★ Mfg., Inc., 12152 Woodruff Ave., P.O. Literally a stone’s throw away from Box 809, Downey, CA 90241. Jersey M etal Spinning is Kim brough Kimbrough Products Tire Truing Arbor. ★ ★ ★ Products at 1430-E East St. Andrews Are you wondering where in the heck Place, Santa Ana, CA 92705, (714) you are going to find a spinner or a 557-4530. Kimbrough specializes in cowling to match your latest scale R/C products for the R/C car enthusiast. This

The Tire Truing Arbor in use. Kimbrough Products Servo Gear Saver kit.

8 MODEL BUILDER month the folks at Kimbrough are introducing two new products: a Direct Steering Kit for Tamiya off road buggies, and a 1/12 scale R/C Car Tire Truing Arbor. R/C car racers worldwide know that direct hookup from servo to steering arms gives the most positive steering control. We think using a K.P. Servo Gear Saver is the safest way to do this. Now, we have a complete kit containing our large servo gear saver »121, servo mount «123, four Rocket City ball ends, two 4/40 tie rods, four 2/56 screws, two 2/56 locknuts, washers, Allen wrench, and instructions with pictures for in­ Plans for this award winning Curtiss Fledgling are now available from PAS-M-CO. stallation in Tamiya’s off road buggy. introduces its latest product, an Enya .90 scale R/C plan, the Curtiss Fledgling. (Catalog #127, $15.00 per kit.) Four-cycle Engine Mount. The mount The photo shows an award winning The Kimbrough Product Tire Truing comes factory drilled and tapped for model made from these plans. Arbor is a handy tool for mounting 1/12 easy mounting. . .just bolt the engine to To aid you in understanding the size scale wheels in a lathe, drill press, or drill the mount with the four hardened steel and details of these plans, we offer the motor, so that you can file, or sand tires cap screws provided. The engine mount following data: model span: 80 inches; true. It has a 3/8-inch diameter shank; is is cast in high tensile aluminum, and is scale: two inches equals one foot; 1/4-inch diameter on one end for rear machined and polished to a bright details: lights, shocks that work, throttle wheels, and 5/16-inch diameter on the finish. mixture control that moves, wind- other for fronts. Wheels are held on with Tatone's Enya mount is now available driven generator that moves, seat belts a 5/40 cap screw and washer (same hex at leading hobby shops for just $12.95. If and buckles that work, and working wrench size as wheel and motor screws). a hobby shop is not convenient, order vents, drain holes, and inspect ion covers. Catalog #128, price: $2.50 each. M in i­ direct from Tatone Products Corp.. 1209 The pictured model flies with a geared mum order $10.00. California residents Geneve Ave., San Francisco, CA 94112. Webra (2 to 1) turning an 18-10 prop. add 6 percent sales tax. ★ ★ ★ If you are interested in this two-sheet, ★ ★ ★ super-detailed plan, send $40 directly to Pierce & Sons Model Company, a.k.a. Tatone Products Corporation, manu­ PAS-M-CO, 25260 153rd Southeast, facturers of model airplane accessories, Kent, WA 98031, has introduced its latest Continued on page 90

MOTE -SCC *t*>LA-TtCH CATALOGS tor photo oocimcmtatiOm

BOTTOM COLOR SCmCMC NOT AVAILABLE AT THIS PRlNUNO-PAINT BLUE

Spinners made to your specifications from Jersey Metal Spinning.

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Repla-Tech International has all kinds of documentation for your © 1 9 0 3 . ALL ΑΛΜΤ5 "tSERVEO next scale project: photos (above) and three-views (ric^it).

NOVEMBER 1983 9 HAWKER FURY MARKU By DON PRENTICE .. . The Hawker Fury is a quarter-scale replica of the pre-WW-ll, Golden Age biplane. Highly detailed scale drawings are also available through Model Builder. See Westburg ad, page 79.

• One of the prettiest biplanes designed out at about 25 lbs. and was powered during the "Golden Years of aviation” with a Quadra. Originally, it had a This is not a beginner’s project, nor is was the Hawker Fury. Its silver and symmetrical wing. The Quadra was it a project for anyone building their first chrome finish, large rondels, and red marginal, and in fact, the model flew quarter-scale model. It is a model of an stripes on the fuselage and wing made it into a tree, broke branches on its way airplane from the Golden Age, a model a very flashy airplane. It was a sight to stir down, and hit, spinner first, into the that will attract the cameras of all who the soul of most aviation buffs of the day. ground. The only damage was to the see it. A lot of construction detail is not For those of us who are old enough to spinner and one ego. The model was re­ included, but can readily be accom­ remember, the soul is still stirred. The engined with a Kioritz 2.3 and flew plished by the modeler who has a back­ Fury is the ancestor of the Hawker Hurri­ successfully. Later at the STARS rally in ground in quarter-scale. The control cane which took a major part in WW-II. Olean, New York, with an untried linkages are not shown, but are left to Peter Westburg wrote several fine fiberglass propeller (unfortunately the builder to design. Every quarter- articles on the Fury and provided us with oversize), and with nerves flailing, the scaler has his pet method for connect­ exceptional scale drawings. Anyone model again suffered a setback, but with ing up the controls to the servos. I’m contemplating building this model very little damage. sure that in addition to reading “ BIG should acquire the Westburg drawings This time it was decided to build a new Birds,” everyone reads Don Godfrey’s from Model Builder (see ad this issue), set of wings with a Clark Y airfoil, and to column, "Giant Steps,” and "Big is and send for the back issues containing put the Fury on a weight reduction Beautiful” by Dick Phillips in other the Westburg articles (August and Sep­ program. The model now flies as it magazines. Both have offered many tember 1976, $2.00 each). A wealth of should, and is very realistic in flight. To systems for servo connection to the detail is provided by Peter and readily my knowledge there is only one other control surfaces. augments the plan provided in this issue. quarter-scale, flying Fury in the country A step-by-step procedure for the The one-quarter-scale model came .. . and it is in Kitchener, Ontario. construction of this model is not pro­ vided, as it is meant for an experienced modeler. However, certain pertinent details of construction are provided. WINGS Before starting wing construction, obtain two bi-fold plywood doors from the local lumber dealer. Cut one in half and assemble a construction jig as shown on the plan. Attach the two halves to the uncut door separated by the flat center section of the wing. Prop up each end to obtain the necessary dihedral. This jig w ill permit the as­ sembly of each wing as a single unit. The spars are of sitka spruce. They should be cut to length, and the outer­ most portion bent as shown. Many small Profile view of the Hawker Fury reveals streamlined fuselage shape, wheel pants (which were cuts with the saw almost through the not found on the Mark I version), and lightweight tail structure. Quadra powered. spar will ease the bending, and glue will

10 MODEL BUILDER Strut installation, rigging tensioner, on/off radio switch, and servo Radiator core is made from corrugated cardboard sprayed black, connector setup in fuselage are visible here. Also note undercart fittings required. Radiator mounts to fuse.

No fancy spinner needed fo{ this rig. Author used metal funnel Undercart fastener details. Round head screws hold wheel pants with 3/4-inch ply backplate. Note huck starter fitting. to mounting plate. hold the bent shape. Assemble each the use of a .060 or smaller drill provid­ 3/32 sheet core on which are mounted lower spar lo the doublers (joiners) ing the thread holes. The aileron is held the ribs which start out as rectangular using the jig for correct dihedral. The in place with a 1/16 collar. Slots must be strips of 1/8 X 7/16 balsa and are later top spar w ill be added after the ribs are cut in the balsa to permit aileron removal sanded to streamline shape. glued in place. and clearance for the collar. The ailerons The spars are pine or spruce, and it is a The wing tips are made by using a are balanced using strips of wire solder good idea to mount the hinges before quarter-inch piece of scrap plywood imbedded in the lower part of the assembly begins. Further, if the hinge form-shaped to the inside curve of the leading edge. pins are removed it is possible to use a tip. Attach the form to a larger back-up EMPENNAGE length of wire through all hinges. This plyboard, cover the assembly with saran The outer edges of the empennage procedure will make it possible to wrap, and lay up the 5/16 balsa lamina­ are laminated in a similar manner as the remove the surfaces for covering, paint­ tions with white glue or Hot Stuff. wing tips. The surfaces use a sandwiched ing etc. In assembling the wings, cut the 1/16 by two-inch lower balsa sheet to shape, mark the locations of the ribs on each half, and attach them to the jig. Lay the lower assembled spars in place using scraps of the 1/16 balsa under them to establish their correct height above the job board. Now, using a square, lay the ribs in place followed by the 1/8-inch sub leading edge. The center ribs must be cut to fit between the spars, etc., as the doublers must not be cut. For the top wing, assemble it as if there was no aileron. After assembly, before cap stripping, cut the ribs associated with the aileron and fit the aileron leading edge in place. The aileron hinges provide for a froese type installation and are installed after the wing is completely framed and cap stripped. The inner nyrod used is from the flexible red type, and the 1/16 welding rod fits it nicely with no play. Close-up view of landing wire fittings. Alter­ Aileron pushrod assembly. Hinges have been More detail is shown on the plan. The nate method of attaching struts to fittings changed per the plans. Bellcrank inspection sewing of the parts is accomplished with shown. made easy by removable panel.

NOVEMBER 1983 11 Underside of fuselage opening. Note rear undercart strut attachment Shown here are the wing hold down bolts and rear undercart strut and bolt spacers used when wing is not in place. Note servo arm fitting. The lower rear wing spar is shown rather than being cut off strengthening. Note pushrod vibration dampening. as per the plan. This allows it to hold undercart fitting in place. Two methods of surface control are The metal mounting parts for the are now formed around the plug to shown: cable and pushrod. For the large cabane struts and undercart are installed bring it up to the required size. A lot of models, and for realism, cables should on their plywood parts before assembl­ sanding, etc., will be required to finish be used which tie into plywood bell- ing the parts to the structure. the cowl and should be completed cranks just behind bulkhead six. To The 1/8 balsa skin is covered with a before removing the foam plug. The provide for cable adjustment, cut the half-ounce fiberglass cloth to add plug drops out easily and an adequate 1/16 wire of a Du-Bro Kwik-Link about a strength to the forward part of the cowling is produced. half-inch back from the thread, flatten it fuselage. The spinner is made using a six inch out with a few hammer blows, and drill a The tail skid which is shown as 1/8 wire steel funnel. Cut the ring off the large small hole through it to accommodate should be a size larger and contains one end and back the spinner with a three- the cable. Use a lock nut and rubber loop for springing. The tail skid is quarter-inch disk turned to fit inside the tube on the adjusted Kwik-Link! steerable using cables to the bellcrank spinner. The spinner is attached to the Two stabilizer braces are mounted used for the rudder. Springs are installed under the stab and are made of Sullivan on these cables to reduce the load on streamline tubing. the bellcrank during taxiing, etc. FUSELAGE The cowling is made or fiberglass The basic framework of the fuselage is using a foam plug to establish theshape. made from 5/16 pine or spruce with A block of foam is cut to the length of balsa cross-braces etc. The formers are the cowl less one quarter-inch. Next, cut Sig Lite Ply and balsa, and slide onto the one-eighth plywood forms, one the basic framework holding the whole shape and size of the firewall, and the assembly in a rigid structure. other a circle 5-3/4 inches in diameter. The firewall is half-inch plywood, and These are glued to the front and rear of after seeing the Byron Pitts fly with a 1/8 the foam in their correct location to firewall, it is felt that a quarter-inch each other. The foam is now cut, sawed, plywood firewall is adequate. (One and sanded to the shape of the finished might also consider making the basic cowl, but slightly smaller in size. A framework of quarter-inch square handle is glued to the rear plywood spruce). The firewall is fiberglassed on former to make it easier to handle the the inside to ensure that it will stay in foam plug. Saran wrap is now draped Stabilizer struts and cable controls. Note place. over the plug, and resin and fiberglass brass tube for changing lower cable direction.

Fuel tank access door and cooling channel. Access door removed. Note stabilizing 7/32 wire.

12 MODEL BUILDER NOVEMBER 1983 FULL-SIZE PLANS AVAILABLE - SEE PAGE 96 13 disk with flat head screws. The front of wreckers. Fortunately, at the Toledo The struts are made using Sullivan the funnel is cut away to accommodate Swap Shop, snubbers (just the right size) streamlined tubingand inserting lengths the mechanical "Huck” starter fitting. were available last year, and I am sure of hard aluminum in each end. Before The firewall and the lower fuselage the quarter-scalers who saw the poten­ sliding in the aluminum, thicken some behind the firewall is cut away to permit tial of these snubbers purchased a five-minute epoxy, and jam it in first. cooling air to escape. This area also quantity of them at 50 cents each. After the epoxy completely hardens and contains a cooling hatch to permit entry The fittings at each end of the axle are firmly anchors the aluminum strips, add into the front of the fuselage. silver soldered to the axle plates. Do not 1/16 aluminum rivets as shown. The true UNDERCART solder the axle directly to the plate as the length of the rear strut is 6-1/2 inches The model uses a spring-loaded temper in the axle will disappear. The hole-to-hole. The N cross-strut is seven undercart. This is essential as there is no 7/32-inch rear undercart strut is silver inches hole-to-hole. The length of the way a springing action can be accom­ soldered to the plate, and at the upper front strut is adjusted after installing the plished due to the axle which extends to end it is held by a sheet steel or hard upper wing and propping it up to the both wheels. Detail of the shock is aluminum fitting held in place by the correct incidence. included on the plan. The tube is half­ aluminum wing bolts. A stabilizing 7/32 WING STRUTS inch electrical conduit, and the neces­ wire is attached to the rear of each shock The wing struts are made the same sary parts have been turned on a lathe. strut by sliding into a brass tube wired way as the cabane struts. Their lengths One might consider the use of the and soldered to the strut. The gear works are estabished after the cabane struts are spring-loaded hydraulic riubbers used fine, and when oil damped, provides an installed and both wings are in place. on the hatch of the small hatch-back excellent undercart. Prior to establishing the strut length, cars. They must be available from auto CABANE STRUTS install the strut wing fittings using 6-32

14 MODEL BUILDER HAWKER FURY M K 2

1/4 scale

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MODEL BUILDER

______Pian No: ÍJQ 3I-B FULL-SIZE PLANS AVAILABLE - SEE PAGE 96 socket head bolts which fit into the blind struts attached to the strut wing fittings also pulls the flying wires tight. nuts anchored into the wing. After the and remove the complete N strut as­ RADIATOR struts are finished, it is best to leave the sembly as a unit. The radiator is a box-like structure RIGGING held in place by sliding it into two The rigging technique used is the L-shaped brackets at the rear and secur­ “ Don Godfrey Method.” Obtain 3/32 ing it using two screws at the front. The nylon woven cord from a sail maker. You radiator core is simulated using half­ can buy it by the foot or by the spool. inch strips from a corrugated box laid on This cord has little stretch and is very top of one another and painted black. strong. It can also be screwed into Kwik- FLYING Links if it is first stiffened with Hot Stuff. The model, like most quarter-scale Fit a Kwik-Link on one end of a piece of models, cannot be “ horsed” off the the cord, attach the cord to one of the ground. It flies on its wings rather than rigging fittings. Attach a Kwik-Link to its on power. Loops and stall turns are opposite fitting and cut the cord to the pretty, but one must be cautious in length required, shortening it about attempting a roll. On landing, as the 3/16 of an inch to ensure it is tight when wheels and skid touch on three-point, installed. The plan shows a rigging add a little power to make the elevator tensioner which is mounted across the effective in reducing the possibility of The finished product . . . stuffed into the rear cabane struts. Tightening this ten­ nose-ovet. the rear end of a wagon for fun. sioner tightens up the landing wires and Happy Landings! ·

NOVEMBER 1983 15 The U.S. Air Force more than deserve* the lead photos for this Nationals report. Westover AFB, under the command of Col. Roy Ayers, was a tremendous host, and very willing to do it again in the future. The A-10 and C-130 were two of many aircraft on static and flight display. CHICOP€€ 83 NATIONALS------By BILL NORTHROP . . . Model Builder's Editor/Publisher reports on the events and happenings at the 1983 AMA Nationals which were held in Chicopee, Massachusetts . . . "Back east at la st!"

• It was the first Nationals to take place of almost 24 events each, for a total of possible. And so . . . a one-man's review in the eastern United States since 1969. 2,207 entries. And that does not take into of the 1983 Nats from photos and ran­ That means about two or three new account the many unofficial and FAI dom notes made while wandering from generations of modelers have been events that were not included in the site to site. We’ll let A M A’s magazine fill created, and anyone who didn’t predict tally. (Further checking on results sheets you in on the details. the Chicopee/Springfield Nats to be the indicate the 2,207 figure is high, and On Monday morning, we first stopped biggest since the 1969 W illow Grove probably the 990, as "no shows” were in on Q.M. Pylon, where 33 contestants N.A.S. extravaganza simply didn’t under­ not deducted from these total figures.) officially flew . .. some only once. The stand the model airplane hobby. As usual, the sad statistic is the con- original winner was first disqualified for Statistics obtained from AM A head­ tinuingdrop in JuniorandSeniorentries. an oversize engine, but then later rein­ Only 139 Junior and Senior contestants stated on a technicality. We’ll let John quarters leaving Chicopee on Monday (69 and 70 respectively) appeared, aver­ Smith untangle that one in his report. morning, following the Nats, indicated aging about three events each. From pylon, we went to Base Hangar, that 990 contestants entered an average Covering the Nationals thoroughly for one of many hangars at Westover, to a publication would be a tremendous and expensive task, requiring many reporters and photographers.and taking every editorial page of at least one issue of a normal size magazine, if not more, to pass it on to the public. Over the years, we have come to realize that with most of our readers being sport model­ ers, a detailed report of competition at the Nationals, or any contest for that matter, is somewhat less than what they are looking for in a model publication. Because they were attending anyhow, and were willing to cover a few events for us, we will have photo/reports from John Smith, on R/C pylon, and Rich Lopez, on control line in general. These will appear next month. Other than that, this writer visited all areas, at one time or another over the competition week, and As always, Carl Goldberg on hand to get in an took photos that would hopefully sum Leon Bennett, Bronx, NY and his magnificent official flight, this in 1/2A Gas. up Nats activity in as painless a manneras Moth Minor rubber scale. Span is 91 inches!

Pair of "Brushfires" from MB plans, by Stan Rautkis (Expert). E-2 Cub, built from Megow plans by Walt Balcer, Norristown, PA. Easton, PA. Powered by YS pumper engines, Kraft Signatures. Plans from Golden Age Reproductions. Span 50 inches.

16 MODEL BUILDER The beautiful Base Hangar site for indoor at Westover. White epoxy floor, 60 foot ceiling. Very few models hung up. Don't miss it next time! " N o , y o u be the girl!" The "Champagne W altz" as performed by Ivan Kristensen and Dave Brown, at the awards ceremony follow ­ ing pattern competition.

Yes. it does fly. Leon Bennett's giant rubber scale Moth Minor cruises overhead.

Latest starter being used by Circus Hobbies' fliers. Write to new CH President, Ron Gilman, for more information.

Bob Champine and his giant, pylon glider placed 3rd in Unlimited Sailplane. Beautiful little Curtiss SOC-1 by George watch indoor. What a fantastic site, and Meyers, Warminster, PA. that is not only my opinion, but the comment by many experts who hap­ pened to attend. We say "happened”, Force personnel in meeting, and in because apparently one or two mis­ some cases, surpassing the modelers’ guided individuals spread some bad requirements. During preliminary in­ words about the site, that quite possibly vestigation of the hangar, it was indi­ discouraged some modelers from ap­ cated that the low hanging lights would pearing. have to be raised. OK, says the Air Force. We don't recall the exact dimensions, But when they began the job, it was but the usable height was about 60 feet, discovered that the 40-year-old wiring and according to the experts, the air was brittle and the insulation shot. behavior was excellent, actually keeping Without hesitation, the lights were the models centered in the highest area. totally rewired and then pulled up to A flush balcony along both sides held overhead beam level! And get this ... spectators, and kept them clear of both the concrete hangar floor was thor­ models and contestants. oughly cleaned and then coated with The hangar preparation was typical of white epoxy paint. Upon entering the Jim and Pamela Kaman, Hurley, N.Y. tangle the attention given by the Westover Air hangar, you felt as though you were with rubber motors in his Fokker D-23.

NOVEMBER 1983 17 Gee Bee Supersportster (Model 4Z') by Henry Haffke, in quarterscale. were concluded on Tuesday. Finally for Monday, it was back to the R/C site, Pattern. As with most events at this eastern Nationals, the contestant Sal Taibi tunes the Ohlsson .29 in his Pacer turnout was higher than normal .. . 151 before release at O.T. events, contestants/entries (no multiple entries and where the turnaround prevents per contestant here!); 49 in Sportsman. overflying of neighboring homes and 22 in Advanced, 28 in Expert.and 52 (!) in businesses, the highly dangerous (and Masters. confusing to judges!) problem of over­ With so many entries, three sites were lapped flying area was prevalent at in operation, with two lines at each site, Westover. On numerous occasions, Guenther Nowak, Chicago Aeronuts, cranks and three judges per line. Looking standing at the middle site (No. 2), one turns into his Wakefield. Placed 6th. downstream at the large R/C Scale could look directly over the center of walking into the "clean room” of a entries, it was hoped that Pattern time the flight area and spot six airplanes, any science lab! could be shortened, and it did work out one of which could belong to any of the It’s unfortunate that the turnout, as this way, with six rounds being flown in six flight lines! compared, relative to other events, was four days, starting at 1300 . .. er, 1 p.m. Typically, at any Nationals, and par­ small. The previously mentioned false and cutting off by 8 p.m. ticularly in this high population density rumor, and the recent indoor cham­ The urgent need for the turnaround section of the country, many unsea­ pionships at West Baden both cut into pattern (in all categories) was obvious. soned contestants appear. ("Never flew the attendance. Incidentally, the hangar Aside from its essential need at local in a contest before, but what the hell, it’s was open to unofficial model flying all contests, where flying sites are con­ only a two-hour drive from home!") week, even after the indoor events, tinually in jeopardy because of noise, Consequently, it is extra trying for

Most outstanding R/C Scale, in our estimation, was this 1/10-scale PBM-3 with Jato assist for takeoff, by John Nicolaci, Marion, Mass. Super Tigre .75s, Eastcraft starters, 38 pounds. All foam construction with balsa/fiberglass skin. Over ten years old. Has had many flights.

Handley/Page "Gugnunc", 20-inch span, by Paul Gaertner, Char­ Farman Sport, by Walt Eggert, Huntington Valley, PA. Note all- lottesville, VA. Original in 1929 "Safe Plane" competition. moving rudder.

18 MODEL BUILDER George Rose holds while Cliff Tacie meters the rpm on the O.S. 120 Cliff Tacie again, with his Precision Scale Spezio TuHoler, recently twin in his Clip-Wing Cub from a Sig kit. featured in M.A.N. Harold Parent! holds on.

Line-up of Schluter helicopters waiting to do battle at the Smith & The Gorham Model Products group, including Bob and John Gorham, Wesson off-base site. their helicopters, and the GMP motor home in the background.

The beautiful Smith & Wesson field site, with golf course quality grass, was used for R/C Soaring and R/C Helicopters. This shows the huge turnout for over 80 competitors in the helicopter events. A Westover C-130 can be seen in its landing pattern. officials, who have to deal with the There was some interference. In spite vers), turbulence and wind conditions, uninitiated who has not yet learned to of careful checking, both 75.64and 72.16 and as mentioned before, the Grand handle the various minor but neverthe­ shot down or bumped 11 aircraft on Central Station traffic conditions at Site less upsetting foibles of contest opera­ Monday afternoon. The 75.64 problem tion. “ I was eating a hot dog when you was never really solved, but those fliers called me . . . just put me at the end of who did not change frequency managed the line.” ‘‘It must have been interfer­ to continue without further incident. ence. I’ve had 10 flights on that plane, But 72.16 was different. Higher tech and it never snapped at the top of a monitors that were brought in finally lo o p !" discovered a local cement plant that was using 72.16 to communicate with its truck drivers. It had not shown up during pre-Nationals testing by the local Pioneer Valley R/C club. In spite of these problems and temporary delays, 307 flights were recorded on Monday! From the contestant’s point of view, and we’re totally aware of the logistics problems involved, it would have been fairer if they did not remain at the same site for all six flights. It was certainly much easier to juggle six judging teams than it would have been to move 150 contestants, complete with all of their equipment, fly-tents, and family entour­ age. However, conditions were different Melinda Anderson, age 13, gets help from her First appearance of long-awaited Shereshaw father in starting her Conquest .15 powered engine, in Pete Reed's Giant Scale Starduster at the three sites, relative to visual 450 Satellite (stretched to FA I size). When it bipe. He placed second, out of 34 entries. background (for referencing maneu­ fired up, she was really shocked!

NOVEMBER 1983 19 Californians Anita Northrop and Bert Baker on the ready line during R/C Scale. Bert's P-47 Top Nationals Masters winners II to r): Tony placed third in Giant Scale. Bonetti 3rd, Ivan Kristensen 1st, and Dave Brown 2nd. Steve (Brushfire) Rojecki was a acceptable and consistent with USPJA George Armstead and Henry Struck at the Old close 4 th . standards, but being confused about the Timer event. Hank's 1937 Wakefield w ill be 2. validity of a maneuver is not acceptable. featured as O.T. of the Month soon. As for judging, this writer is probably Tuesday morning we drove just a short as much or more familiar with its strong distance from the headquarters hotel than ever. There were 71 entries in AMA and weak points as anyone involved, (Quality Inn) to the off-base site used for competition and 10 in FAI-F3C. A good and to make detailed comments would R/C helicopters and R/C soaring (on sign was that the 18 in the Expert cate­ be highly out of order. In general, we different days, of course). Actually gory were outnumbered by Novice (19) could only discern one weak link in the closer to the motel than the Air Force and Intermediate (24). judging chain at Westover. The USPJA base, the field is on the property of the Bob Gorham, of Gorham Model Prod­ should thoroughly investigate the level Smith & Wesson (yes, the gun folks) ucts, Calabasas, California, and Yoshiaki rating of a judge who scores, more than Company. Nagatsuka, of Japan, representing Kalt, once, the maneuvers of highly skilled Today was the second, and last day of had two nip-and-tuck battles going, in Masters fliers, as practically unrecog- the helicopter event. As with most AMA Expert and in FAI-F3C. Yoshi’s nizaDie, i.e., a three or four, when the others, the contestant turnout was more caller was our old Japanese buddy of other two judges in the same team rate many years, and chief honcho of Kalt the same maneuver as an eight or nine. Sangyo Co. Ltd., Hiroyuki Oki. Kalt Consistently scoring low, such as one or helicopters are distributed in the USA by two points below average, is certainly Circus Hobbies. In the final tally. Bob

Dave Rees, Rawleigh, N.C., first in Scale Gas Don Srull, McLean, VA., tells the judges what Don Srull again, but he can only guess what with his Brown C02 powered, 18" Hyperbipe. his R/C Swedish "Schlepp" is gonna do. his F/F rubber scale Alco Sport w ill do!

Never a Nationals w ithout a Korda Wakefield! Dan Belieff finishes Mike Gretz fires up the O.S. 4-stroke in the Sig version of the Astro winding his as Ray "Trip the D.T." Factor looks on. Hog, a m ulti classic of bygone days. K it to appear soon.

20 MODEL BUILDER Bob Hanft, Elberta, Alabama, winds up the Titan in his Giant Scale "Quick, Henry, the F lit!" Mass launch of the FAC Greve Trophy Fokker D-VIII. The "Flying Razor" placed 9th. Race. First one down is eliminated in next round, etc.

Of course it's a biplane! Gordon Wisniewski. Milwaukee. Wis., Gee Bee Senior Sportster, by George Woods. Fairfield, Conn. Quadra launching his Penny Plane. Took first with 13.02 in Open. power, with 18 x 6-10 Zinger prop.

Horace Hagen and his fellow officials certainly ran a well organized event, making it appear that there were no serious obstacles to overcome (don't you believe it!). After stopping by the motel restaurant (the best in-house motel eatery we can ever recall!) for a generous bowl of real, genuine New England clam chowder, we headed for Westover to watch some more indoor (Pennyplane, Easy B, and FAI Stick) in the "clean room ." There’s a hypnotic effect in watching these silent, weightless wonders as they circle just under or in amongst the beams and Bill Wargo, Redding, CT.. said engine in his lights, 60 feet overhead, the huge pro­ Douglas 0-46A ran better in the basement. pellers turning at 60rpm or less (yes, one revolution per second!). No one who outpointed Yoshi for first place in AMA has observed this indoor phenomenon; Expert, and Yoshi captured first in FAI, the meticulous record keeping of every Some of the R/C gliders waiting for a winch over Tom Dalusio of Woodbridge, Con­ flight, the wind counters, the torque at the R/C soaring event. Scott Christensen’s "Antares" is in the foreground. necticut, and Bob placed third. meters, the careful selection of rubber

George Rose cranks the engine in his Precision (FAI) Scale P 6E, Circus Hobbies' new president, Ron Gilman, and his 825 $q. in. Placed Third. Suffered from premature tank drop. "H ippo" Tipo. Ron placed 16th out of 52 Masters contestants.

NOVEMBER 1983 21 Veteran R/Cers Dick Allen (seated) and Ralph Jackson (right) offer Tony Bonetti, Emerson, N.J., and Circus Hobbies representative, fatherly advice to Tom Griffin. All from upstate New York. always uses trademark black and white paint job on his pattern birds.

Aeromaster II entered in Sportsman Pattern by Ed Andrews, Pittsburgh, PA (no relation to Tom Thompson, Minneapolis, Minn., cranks George Perryman puts winds into his . .. get Lou), held by helper/brother George. up for 1 /2A Gas flight. He got a max. this .. . "Fludy Coop". Placed Second. motor for section size and loop length, When the Astro Hog was introduced The significant fact, however, was that the slow measured walk when carrying a in kit form by Berkeley Models in the although the engine didn’t turn high model in order to avoid destroying it by late ’50s, it was the hottest pattern rpm or pull the model fast, it pulled it moving too fast... yes, no one will deny plane going. The first successful low- consistently, and would keep on pulling, that it’s the most exacting category of wing m ulti-R/C model, its fame was even at steep attitudes. The perfect type this modeling hobby. established by Bob Dunham, who, with of engine for the turnaround pattern Well, back to the roar and the exhaust his equally famous Orbit reed radio, and for noise-conscious fliers ... as we fumes and the close scrutiny of precision won many contests, including the Na­ all should be (hmmm . . . four-cycle aerobatics, still described by the ancient tionals. The Astro Hog was (o R/C what pylon, anyone?). and outmoded word, '‘Pattern.’’ There the Zipper was to free flight . .. every­ We spent the rest of the day at Pattern, was one interesting exception to the body who was anybody or nobody had as it was like “ Old Home Week” , meet­ roar. If for no other reason than to prove one. ing up again with the many friends we a point, Mike Gretz, representing Sig To take nothing from the ‘Hog’, it was made during the ’50s and ’60s as a more Mfg., from Montezuma, Iowa, flew in the engine that really turned on many active flier than in recent years. Many a Sportsman Pattern using the show contestants at Westover. It was powered conversation started with, "Remember model of one of Sig’s latest kits, the Fred by an O.S. 76 four-cycle, and in the air, it the time when. . . Dunn "Astro Hog.” could almost pass for an electric motor. Wednesday was free flight rubber and

Kids from a Chicopee day care center enjoyed watching free flight Bud Atkinson (kneeling). Blue Springs, MO., and his Giant Scale activity. Bob Sifleet gets his Wakefield processed. Varka Kachina. Yet, it used to be a Shinn, until the company was sold.

22 MODEL BUILDER A rt Johnson's P-43, Bert Baker's P-47 and a Sopwith Pup on the flight line. George Perryman launching . . . what? . .. straight wings? .. his Lanzo stick O.T. showed up. We have to take just a little Some of the 252 gliders entered in R/C Soar­ dig at the FAC for not joining in to ing com petition! The largest turnout ever. gas scale day, and this was a “ must bolster these categories . . . well . . . the attend” from our personal viewpoint. rubber events, anyhow, particularly We don’t remember a Nationals when when it was right in their backyard. They the wind didn't blow mercilessly from did have their own, unofficial FAC dawn to dusk on the day these events contest on Friday, and it blew kinda hard came up. Well, not this time! It was that day. almost comical to watch a contestant From scale, we wandered over to the wind up, hook on the prop, and then general free flight area and helped time stand there trying to figure out which some 1/2A Gas and Wakefield contes­ direction to launch the model. It really tants. Happened (by plan) to be on hand didn’t matter! They could just about fly for Carl Goldberg's official 1/2A Gas outdoor Easy B! flight. It’s a tradition with Carl to fly in at It was a pity that these events weren’t least one event at every Nationals ... better attended. For the three events: always in free flight. AMA Rubber Scale, AM A Gas Scale, and Peanut, only 51 of the 87 pre-registrants Continued on page 90

Engine and stinger on KC-10 tanker (DC-10) make a weird photo from a low angle on the ground. Judges and line officials who operated the six pattern flight lines for four long afternoon/ evenings to finish ahead of schedule in spite of large contestant turnout.

Scale judging and processing took place in a grass court at the Pioneer Valley R/C Club field, where R/C Old Timer was flown. Quality Inn, AMA Headquarters. Tree provides shade, protection, and a landing place for errant models.

NOVEMBER 1983 23 coordinated outfits?) Then, this morn­ ing, I received her carefully wrapped package: both dolls look great, they’re the right size and very nattily dressed, and being articulated, fit nicely into my new big Cub’s seats (if I’m not careful I may get to like making these scale-like touches). I’m still not sure what made mom change her mind and get involved, but after holding out for all these many years, her sudden “ aiding and abetting” is like getting the Good Housekeeping Seal of Approval; we’ve definitely taken a great stride forward. Let me tell you that talking a stubborn friend into finally coming down to the field to get some buddy-box time is nothing compared to this achievement. . . which has to be my finest hour. I never even dared to hope for. what has to be the true "Ultimate Conversion.” I still find it hard to believe The Double Nickel Squadron has some quaint customs. Carl Bopp demonstrates one. To pre­ that my mom has, in essence, given us vent people from joining the squadron and overcrowding the field, Carl assumes the required her blessing. "grimace" while readying his Bucker Jungman. He’s not really enjoying himself, you see! So, take heart, all you guys with moms who don’t seem to understand or appre­ ciate what you’re about. With a little hope, and a LOT of patience (about fifty years worth), you, too can make a major contribution to modeling ... ’cause a mom’s sanction carries one helluva lot of weight. TRUE CONFESSION There’s nothing wrong with a little catharsis every once in a while; its cleansing action is most beneficial. Now you wouldn’t think that a 250 pound cherub like me would ever have any repressed material that needs airing, but even us angelic types do go astray . . . sometimes. You see, back in the “ dark ages” of BIG Birds (about 6-7 years ago), I drew an erroneous conclusion about oils and lubrication. But now,thanks to THE ULTIMATE CONVERSION although, in spite of being naturally shy friend Bert Striegler, of Houston, I’ve No, I'm not talking about religion . . . and bashful, I eventually found that girls finally seen the lig h t. . . and because the nor the electronic wizardry it takes to were almost as curious and fascinating to longevity of your engine (and aircraft) update our radios. What I am referring explore as airplanes. depend on adequate lubrication, I’m to is actually a who ... my dear, sweet, Anyhoo, for well over forty years, mom passing on these words of wisdom. silver-haired old mom who’s never been has remained steadfast in her belief that Back then, when I was repairing and quite able to understand my continuing any size model was a toy (and believe test running Quadras, it appeared that love affair with model airplanes. Mom me, my mom’s not one to give up on any outboard motor oil had ruinedanumber sez I should have left my models behind idea too easily). So that’s why I was left of engines . . . and so, as far as I was con­ when I reached the age of puberty; at speechless during and after her call cerned, outboard motor oil became a that point in time going on to more telling about finding “ pilots” for my BIG big no-no. Since then, I’ve never missed grownup pursuits. However, mom (nor Birds .. . and how sne was going to knit a chance to point out that feeding this oil dad) never really spelled out what those matching berets for them. (How many to your gas burner was a mean, spiteful, pursuits might, should, or could be .. . other guys have pilots with color- and underhanded thing to do . .. and

Rans for Bob Seng’s Akro will soon be available from Mammoth Scale Bob Siegelkoff’s Shoestring, built from Mammoth Scale Plans. This Plans. This plane has won many awards at shows, including the '83 pretty bird flies like a dream at 28 lbs with a Kawasaki 3.15 for Northwest Model Expo. It flies as well as it looks! power. These Bob Morse plans are outstanding in every way.

24 MODEL BUILDER Ikon N'west's 5-year-old Monocoupe 90A about to take off for the Another Ikon offering is this Super Cub with floats. Model is an ex­ 2,561st time (plus or minus a dozen). Emil Neely's airframes w ill cellent flier, and can be used as a trainer. With floats, the bird weighs stand the test of time. Model weighs 17 lbs, uses Quadra. a tad under 19 lbs. Quadra engine pulls her along just fine. branded anyone who did it as a 100% low-life. Well, the truth is that, at best, I was only half right. According to Bert, who’s been a lubrication engineer for over 27 years, just about any brand of petroleum- based two-cycle oil is basically outboard motor oil . . . and. of course, not all of these are up to industry standards. Sooooo, the BIG question is: how do you tell the good from the bad .. . and the ugly. It's simple, Bert sez. "Just read the label. Look for the Boating Institute of America (BIA) seal of approval: it’s your guarantee that theoil will give you maxi­ mum protection." The boys from the aloha state (Hawaii) really like those R&R airplanes. Here's Jim Miura's Seems that the BIA test all these oils at version of R&R's new Snapper Twoo bipe with a BIG Quadra in it. "It's really a winning com­ 100:1. Why 100:1? Why not 50:1, or 75:1? bination," says Jim, " , . . very agile and very aerobatic." Zinger 22-10 cut to 20-10. Because it's a fact that too many of us don’t mix our oil and gas together any­ ratio was the same. "I would not go running on stale fuel, and it is best to mix where near as well as we should. There’s leaner than a 50:1 mix, regardless of the up only what can be used within a been a fairy story going 'round that by type of oil used . . . petroleum-base or week’s time. A rough running engine pouring the oil into a can, and then synthetic like Klotz." not only has a reduced power output, pumping in a gallon of gas, the mixing Additives were next on the agenda, but it can, and will, take its toll on that airframe it’s mounted on. will be almost complete and only a few and I found out that virtually all BIA So there it is. For better lubrication, shakes of the can are needed to achieve approved oils have additives. Some have more RPM and engine longevity: select a perfect blend. an additive that aids in mixing . . . but all "Unfortunately the oil won’t mix up have an additive of some sort that a BIA approved oil, mix thoroughly only so easily," Striegler pointed out. "Even reduces deposits and minimizes scuffing what can be used for each flying session with additives to help, proper and and ring wear. ... and enjoy. uniform mixing takes a little time and As I’d been helping perpetuate the SUPER STARTER SAFETY deliberation. If you follow thedirections myth that all outboard motor oils were I’ve been using, and purposefully abusing, P.K.’s "Super Starter . . . and in on the container, you’ll do all right. We insidious, I wondered whether my long- found out that at 40 degrees, it takes 28 held view about using only a fresh fuel spite of me, this simple coil of wire mounted on my Quadra’s rear shaft just inversions to properly mix the oil with mix would also fail the close scrutiny keeps on truckin’. It works great, and it gas. So even at warmer temperature, it's test. But I never faltered . .. and pressed gets my engine going the first time, going to take much more than just a few on in my brave, glorious quest for the shakes.” truth . . . at any cost. This time, however, every time . . . and until a few days ago couldn’t find a thing wrong with this So, because many people unknow­ old buddy Bert (sound a little like the “ better mousetrap." ingly run their chainsaws and weed- script from "Sesame Street’’) patted me trimmers on a mostly thin mixture, the on the head reassuringly. .. and pontifi­ BIA simulates this condition by testing at cated. I had, indeed, observed rough Continued on page 82 100:1. Does this mean that you can or should run any of the BIA approved oils at 100:1 also? Bert sez no! "That test is set up to destroy the oil ... to determine how much engine pro­ tection you get from an oil with that kind of mixture ... so it’s not going toexactly give you perfect engine protection. The test was designed to screen oils. About a 50:1 mix is as lean as I’d go on any air­ cooled engine .. . ever.” I was also curious about the possibility of using Klotz Oil for gas engines. I’d been using Klotz in my 5% homebrew glow fuel for about 15 years and have been very happy with i t . . . so asked Mr. Bert was he thought. Not too surprising, his recommendation for a gas-to-oil

NOVEMBER 1983 25 Pou Du Ciel (THE FLYING FLEA) By RANDY WRISLEY . . . Whether you call it Pou-du-Ciel, Flying Flea, Sky Louse, or H.M. 14, it's still an attractive "bug" of an airplane. Originally designed in 1934 by Henri Mignet, hundreds of "Pous" were built.

• I guess I’m just one of those guys who braver modelers would walk by and ask yours, you should be aware of two roots for the underdog. I built this scale if it had flown before. Most were amazed things. First off, keep the tail light. model of the HM-14, just to see if all the when they saw the wing pivot. As I Finally, don't be tempted to over-power horror stories I had heard about it were walked to the runway for the “ first” it. It flies just fine at 32 ounces with an true. Using my junkiest engine, and flight, modelers moved their belongings Enya .09, swinging a 9-4 plastic prop. oldest radio, I proceeded to construct to the shelter of their cars for safety. Read on M cDuff, and we’ll build yours. what you see in the pictures in two days! The little Flea ran arrow-straight down FUSELAGE Boy, was I surprised when this little the runway, hopped into the air, and Select a soft piece of 3/32 by six inch bug flew so well! It’s stable and easy to made several happy circuits of the field. I balsa. Carefully cut two sides to shape. fly. It's a pussycat on the ground. When I took it up a ways and let a friend fly it Don’t mark on the aft ends of the sides as tried to get it to tuck under, it would get who had no time on powered models, they will break when you try to bend to 90 degrees and stop. A touch of up only gliders. He had a ball! Like its full- them. Cut the formers from the material elevator Drought instant recovery, usu­ size counterpart, the Flea won’t stall in indicated. ally with a loop. Oh, by the way, I used normal flight attitudes, and it w on’t spin. Install the 1/8 x 1/2 inch bearing Henri’s original form of control, and Needless to say my buddy had no blocks for the joystick, and drill the 5/32 pivoted the main wing for elevator! trouble! When the engine quit, I glided holes for the brass tube before you My first trip out to M ile Square (a very down to a perfect landing and was assemble the structure. Bend up the popular Southern California flying site) surprised to hear a round of applause! cabane struts from 3/32 music wire. had many of the regulars there worried. Hurrah for the underdog! Attach it to former "C ” with Sig landing As I fiddled with my junky engine, the As you gather the materials to build gear clamps. The 1/8 inch landing gear wire is also held in place on former “ B” with landing gear clamps. Assemble the fuselage by installing former "D ” . Pull the tail together and Hot Stuff it lightly in a couple of spots.

Con tinued on page 72

These twin tail wheels are from an old Comet Flying Flea model has simple engine mount. Front cabane assembly as it meets top wing. kit, but can be turned on a wood lathe also. Forward part of cabane assembly visible. Wing is free to pivot for "elevator" effect.

Almost ready to fly, the Flying Flea waits for one more photograph. Side view of the Flooing Fly .. . er. Fleeing Floo . . . you know! Engine installation is neat and simple . .. cute, too! Elevator pushrod clearly seen here. Darned unusual aircraft!

26 MODEL BUILDER NOVEMBER 1983 FULL-SIZE PLANS AVAILABLE - SEE PAGE 96 27 Mark Rebeck, of California Slope Designs, San Juan Capistrano, California, launches his highly aerobatic slope soarer over the cliffs of Dana Point, California. Model is called a Savage. Mark is a highly gifted pilot as evidenced by this low axial roll. The Savage is not a tricky glider to fly. It will fly very slowly or quickly. Besides being an enterprising young man at age 20, Mark is a very good pilot. As I watched him fly the Savage (and later, the Son of Savage), I became very impressed. Mark is fearless and daring with his slope planes, frequently skim­ ming the tops of the weeds at the slope’s edge, and doing inverted maneuvers at perilously low altitudes. Mark is your By BILL FORREY proverbial "Hot Shot.” Loops, rolls, hammer-head stalls, you name it, it’s PHOTOS BY THE AUT HOR second nature to this guy. Lest you think that the Savage is a design which requires much aerobatic right, you can fly for literally hours. If it’s pilot skill, let me tell you that f/iaf is just a good slope, lift abounds, and both not the case. Having flown the Savage beginner and expert alike can get in myself, I can report that it's a very stable, some quality stick time. slow-flying, aileron plane with no bad I spent a few hours recently at a habits to confound the beginner. It is couple of good sites. By design, I met light enough to fly slowly in the weakest with Mark Rebeck, of San Juan Capi­ wind conditions, yet when ballasted, is strano, California, at both slopes. Mark is as fast as the best of them. When I flew it, the owner of a small outfit called Califor­ conditions were marginal. “ Floaters” nia Slope Designs which markets two were the only other planes able to stay • Slope flying c.in be a LOT of fun when slope-oriented sailplanes: the Savage up. My 12 oz./sq. ft. 2MWC plane, the your favorite site is blowing just right, and the Son of Savage. If you checked old Goat Hill Special, ended up at the and you have come equipped with a out the photos before you began read­ bottom of the hill as the Savage flitted suitable R/C sailplane. When the wind is ing, you know what they look like. about, performing astounding maneu-

The Savage flies in very little wind if necessary. Note flag on antenna. Author's 12 oz./sq. ft. For those with quick reflexes and sharp eyes, Goat Hill Special (E-205) ended up at the bottom of the hill . . . the Savage stayed airborne. Calif. Slope Designs has the Son of Savage!

28 MODEL BUILDER Mark Rebeck poses with his CSD kit line: the Savage (left) spans 70 "Hatch" Manell and Scott Christensen, of Top Flite, show you what inches, and the Son of Savage spans 42 inches. Both use E-374 mod. can be done with a Metrick kit: sailplane (right), or electric powered.

vers as if to flaunt itself in front of the over the ball! Imagine ... an R/C- have no differential throw as Mark flies GHS. guided football! it, this way inverted flight is identical to The Son of Savage was equally adept at Anyway, here are a few specs on the normal flight); radio: any normal-sized responding to Mark’s inputs. This one, Savage: span: 70 in.: airfoil: Eppler 374 receiver and servo combination is okay, however, might be a bit much for a modified by decreasing thickness and as are the “ minis” ; wing construction: beginner as it is so light and small that moving the highpoint forward (it works one-pound polystyrene “ bead” foam, things happen rather quickly, and the VERY WELL!); weight, ready-to-fly: 32to 1/16 in. sheeting with cap strips, one- “ SOS” is more sensitive to gusty wind 34 ounces: wing loading: six to seven piece bolt-on wing, 1-1/4 in. strip conditions than its larger “ parent.” The ounces per square foot: control func­ ailerons. fact that it demands a little more skill to tions: aileron and elevator (ailerons The fuselage comes two ways, either fly will probably attract the intermediate and advanced fliers. I will say that it sure would be nice to have one of these little gems ready to fly and waiting in your car so that you could stop just about any­ where and toss it off a slope at a mo­ ment’s notice. It’s small enough to land on a very small patch of weeds, bushes, etc., so that a big slope site isn’t needed. The site possibilities are just about lim it­ less with the SOS. In fact, you don’t even need a slope if you just want to hand- launch the SOS at a nearby park or athletic field ... as we did. We played a game of football with the SOS! Mark Rebeck was the QB, Steve Enright was the wide receiver, and the SOSserved as the football. I'll bet that all professional QBs wish they had that much control

Mike Charles turns on the power to his IBA FAI/F3E contest model as Bill Northrop and Scott Christensen pretend to keep it under control. Bystander is obviously impressed!

"Lemmie see now ... I think it goes this When the wind is down and coming from the Hatch heaves his heavy "Electrick Metrick" w ay!" Scott designed the Metrick ... wrong direction, you'd better give it yer all I over the cliff in Costa Mesa, California.

NOVEMBER 1983 29 built-up balsa and spruce construction, HIA show, and brought with him one of or fiberglass. The fin is actually part of his two-meter Metricks. Bill Northrop CLARK Y the fuselage for strength reasons. There and I took a break from ourofficeduties Coordinates below: X UPPER SURFACE Y is no rudder, but one can be added if so and took the afternoon off with Scott at 100.00000 .12000 desired. The stabs are very lightweight the local slope site. We were joined 95.00000 1.99000 and strong with spruce leading edges, there by two more R/C modelers . . . 90.00000 2.80000 solid balsa spars, and cap strips. The stab Mike Charles with his I BA F3E plane, and 30.00000 5.22000 airfoil is symmetrical. With the fiberglass Hatch" Manell with his electric Met- 70.00000 7.35000 fuselage, the Savage weighs in around 36 rick. 60.00000 9.15000 50.00000 10.52000 to 38 ounces, ready-to-fly. Unfortunately for Scott, the wind was 90.00000 11.90000 The Son of Savage is a photographi­ down and coming from a bad angle, so 30.00000 11.70000 cally reduced Savage. It spans 42 inches, he wasn’t able to fly very much. Hatch, 20.00000 11.36000 weighs 11 to 12 ounces, is sheeted with however, was able to fly . . . all he did 15.00000 10.68000 1/20 balsa wing skins, and is designed for was switch on that motor of his and off 10.00000 9.60000 the new. mini or micro radio systems. he went! 7.50000 3.85000 5.00000 7.90000 Mark uses the Novak NER-2S receiver. I just thought you’d like to know what 2.50000 6.50000 100 mah battery pack, and World S 22-A Hatch used in the Electrick Metrick in 1.25000 5.95000 servos. However, if you had a Cannon case you wanted to make one up your­ .00000 3.50000 system, or one of the new Tower Hob­ self. At the time the pictures weretaken. bies systems, it would work just as well. Hatch's plane had a six-cell system. The χ LOWER SURFACE γ The going price of the built-up Savage motor he used was a Leisure Pattern 100.00000 .00000 is $55. while the fiberglass version is $75. Wind 05 with a Carrera 5:1 gear box 95.00000 .00000 If you want the SOS. it will cost you $30. (now out of production) and a Carrera 90.00000 .00000 30.00000 .00000 For more detailed information, you can 14-inch folding prop. His flight times 70.00000 .00000 write to Mark Rebeck, c/o California averaged about six to seven minutes 60.00000 .00000 Slope Designs. 31932 Calle Winona. San with this setup. Now Hatch uses the 3.6:1 50.00000 .00000 luan Capistrano. CA 92675. or call him at Leisure Gear M otor and a Graupner 550 90.00000 .00000 (714) 493-0843. folder (14-inch prop) off of a seven-cell 30.00000 .00000 20.00000 .03000 ELECTRICK METRICK pack. He says that his motor run is down 15.00000 .15000 Scott Christensen, of Top Flite models to about 3-1/2 minutes now. but the 10.00000 .92000 and model products fame, was in the climb is phenomenal. "At 3-1/2 minutes 7.50000 .63000 Southern California area a few months you're so far out of sight it doesn't 5.00000 .93000 back for the Hobby Industry Associa­ matter that the motor run is less.” says 2.50000 1.97000 1.25000 1.93000 tion's annual west coast trade show. He Hatch. .00000 3.50000 stopped by Model Builder one after­ .00000 3.50000 noon during a break in the action at the Continued on page 73

L

1.5 CLARK Y

1.0

oR e: 60 000 0.5 Airfoil thickness: 11.7% q Re: 100 000 Chord used in tests: 160 mm

δ Re: 200000

0.1 0.15 - 10° 10° 20° oc Angle of attack

- 0.5

Dieter Althaus, of Stuttgart, F. R. Germany, has done extensive wind tunnel testing of various airfoils and has published them in a book e n title d Profilpolaren fur den Modellflug. The above data is from this work. Wilshire Model Center (see page 74 for address) has this book.

30 MODEL BUILDER S t i T f J ä f 1 - ~>V MARE,

THE VOLT-OHM -MILLI AMETER, As the nameimplies.thisisamulti-use Y O U R BASIC TEST IN S T R U M E N T instrument, designed to measure the lust as soon as the R/C hobbyist basic electronic values: voltage, current, decides that he wants to learn more and resistance (in volts,amps, and ohms, about what is going on inside our won­ or fractions thereof). The choice of such Simpson Model 260-6XL has been designed drous little boxes, and to start doing an instrument is important, and must be especially for solid state circuitry testing. more for himself, he discovers that he made with care. Important features to needs some measuring instruments. The consider are: Ranges: does it cover the merely confirming that there is some life design, building, and upkeep of elec­ actual values you will work with? Read­ in the circuit. tronic items requires measurements, ability: which combines with accuracy: There is also something referred to as and the equipment to do it with covers a are the ranges spread out enough to sensitivity, stated as onms-per-volt, wide range of sophistication and price. permit observing small value changes, which has to do with the loading effect Yet. even the best equipped labs depend and is the display large enough to allow of the instrument on the circuit being on the basic VOM, or Volt-Ohm-Milli- seeing them? Don’t kid yourself into measured. The higher the ohms value, ameter. for a large part of the required believing that you are reading from zero the better the instrument is considered measurements. And, it is the first instru­ to 500 volts on a 1-1/2-inch meter face to be. We need to also consider the ment that the hobbyist should consider. with any accuracy at all. Readability also company with which we are dealing, as includes the actual meter face . . . can this is not a $7.95 item. It is reassuring to you look at it and locate the scale with know that service, parts, accessories, which you are working, or is it lost in a and just plain information will be avail­ clutter of lines and numbers? Accuracy able to us in the future should the need again must be considered in another arise. Price must be considered, some- light. Can you really depend on what such an instrument is telling you, or is it Continued on page 85 + ------—

Q1 - RS 276-2009 Q2 & Q3 — RS 276 2032 R 1 - 47 K INPUT R2 - 220K R1 Q 3 Γ* R 3 - 6 . 8 K C1 - .1 C E R A M IC Ί r c1 Í Ϊ R3 (-*-F B - 6 VOLT BUZZER — _ i______, i______J Schematic for servo-signal triggered buzzer, which can be used as a down plane locater, and as a range check warning buzzer for preflight safety.

JACK PLUG TO M E T E R J ^ r ------a = C k

LOAD RESISTER

For certain applications, a digital readout is Bob Hilton's addition to his Tower/Kraft tranny to permit battery testing. The resistor within desireable. Simpson Model 470 shown. the dotted lines is added to provide a load.

NOVEMBER 1983 31 ? ° cl£TY 0»

^ 'k C R A F T

S.E.A.M. spark plug, Frank Heacox, poses Team Electricus?!! Clockwise from right: Roger Roth, Dennis Brandt, Bob Boucher (Astro with his Electricus. Frank made the folding F li^it), Larry Jolly (Electricus designer). George Boss, Dan Fink, Rick Schrameck, John Brown. prop him self. Uses Cox 7 X 3 -1 12. $ELECTRIC POWERi By MITCH POLING

• Bob Boucher wrote in with newsfrom Rick, Dennis may beat you later with that been under development for the past Astro Flight and on the contest spon­ motor! The final word on the whole year. They are now ready to ship, and I’ll sored by Astro on June 26. The contest show came from Bob, who says that they bet they are good. They use the same was for sport electric gliders with seven are going to give up on the one minute brush and motor ^ase technology as the cells, and was held at Magnolia High motor run for flyoffs, and use thirty cobalt motors, which will give much School in Los Angeles. Larry Jolly was the seconds. How times have changed . . . I more power than the older designs. I am contest director. The rules for the event remember when two minute motor runs looking forward to getting one, and I’ll were one-minute motor run with man- were the norm, then it dropped to 1-1/2 let you know the results as soon as I do. on-man launch, with the final flyoff an minutes, then one minute, now 30 Bob says the Astro 10 super ferrite turns a unlimited duration with the last man seconds! This says, more than anything Rev Up 7x4 at 14,000 rpm on seven Sanyo down the winner. The results were sur­ else could, how much performance has sub C’s, and the Astro 15 turns the Rev prising! There was a five-way tie forfirst, changed since the pioneering days. Up 7x4 at 16,000 rpm on 12sub C Sanyos. and the “ last man down” tie breaker Other news from Bob concerned the These numbers look good to me. The didn’t work because all of them were new super ferrite motors, which have Astro 40 cobalt motor is also in produc- still up in the air after an hour! That must have been something to see! It also says 1983 ASTRO FLIGHT CONTEST RESULTS a lot aboul the performance of the Electricus (MB. Mar. '83), which all of 1st Rick Schrameck Electricus Astro 05 cobalt 7x4 Rev Up 7 Sanyo sub C’s them were flying, and the altitude that 2nd Dennis Brandt Electricus Leisure 05 7x4 Rev Up 6 Sanyos the Astro 05 cobalt and the Leisure 05 3rd Roger Roth Electricus Astro 05 cobalt 7x4 Rev Up 7 Sanyo sub C’s can get in a minute. Finally, just to get 4th Bill Boss Electricus Astro 05 cobalt 7x4 Rev Up 7 Sanyo sub C’s the planes down, a one minute precision 5th John Brown Electricus Astro 05 cobalt 7x4 Rev Up 7 Sanyo sub C’s event was called, the man down in closest to one minute won. Rick Schramek won by one second! The final results are shown elsewhere. Look at that run of Electricus planes, not to mention (he 05 cobalt! I have ordered my kit, and hope to have it soon. Larry Bedford, who built the Leisure Playboy described in the Octo­ ber column, ordered the Electricus kit, and showed it to me. It is beautiful! Everything is cleanly cut, no die crunch­ ing, nicely packaged, and the wood is immaculate. It is up to the Airtronics 650 kit in quality, and that is the highest quality I have ever seen. I’m looking for­ ward to mine. Anyhow. Astro generously donated a cobalt 05 for the 1st prize, an AC/DC charger for 2nd, and a Monterey kit for 3rd. Rick generously gave the cobalt to Dennis in exchange for the charger, as Winners of the Astro Flight sponsored contest (left to right): Roger Roth, Rick Schrameck, he already had three cobalt 05’s! Dunno, and Dennis Brandt. Three-way tie breaker was a real eye opener, see text.

32 MODEL BUILDER Step 1. Trip on down to your friendly neigh borh oodRadio3iack Wilshire Model Center now carries this excellent, super flexible wire and buy what you see here. "16 PIN WIRE WRAP SOCKETS, right. for electric power installations. Twice the number of strands!

Step 2. Remove contents of packets from Step 3. Cut apart headers and sockets to form Step 1 above. Simple, huh! four-pin connectors. Haven't lost you yet? tion, with a brush twice the state of the proposed by Bob are simple, if you want rototype. The testing gave 350 hours of a copy, I think Bob would oblige if you Crush life, which would be good for include an SASE to Astro Flight, 13311 thousands of flights. Bob didn't say what Beach Ave., Venice, CA 90291. These prop or cells were to be used on the 40.1 rules are not made up from thin air; Bob would guess about a 9x6 to 10x4 on 18 to speaks from practical and hard experi­ 20 cells. ence. All of these events have been held (I have been at most of them),and Last, but not least, Bob also included a Step 4. Solder power wires to two pins each. list of proposed rules (to the AMA) for the rules work. Of course, there will and Use of heat shrink tubing would be recom­ electric events in free flight open, free always will be some points that will be mended, but eliminated for clarity. Top to flight junior, free flight old timer replica, questioned; that is the way rules get bottom: Astro, Leisure, Deans, Radio Shack. free flight scale, control line aerobatics. refined and developed. I do see that CL scale, CL speed, CL carrier, open R/C there is no six-cell class for sailplanes or the reports. sailplane, seven-cell sailplane, R/C old- ylon racing, and I think there should A few months back in the June issue of timer open, R/C old timer seven-cell, Ce, for duffers like me who aren’t good R/C Modeler, Clay Howe had an excel­ R/C seven-cell pylon, R/C aerobatics, enough to handle the hot performance lent article on how to make R/C con­ R/C scale, R/C helicopter, R/C lighter of seven cells. I think there is room for nectors from Radio Shack wire wrap than air, R/C indoor endurance, and both six and seven cells. That would sockets and DIP headers. Bill Gilchrist R/C indoor scale. Whew! Twenty events! make 22 events, but why not? The more We could have our own Nats! The rules the merrier! Thanks very much. Bob, for Continued on page 68

Improved fuse installation. Step 1, solder to back of lug clip, then Step 2. Just plug in the automotive type fuse! If you have a tight cut off clip shank. Easy, compact, positive connections for fuse. installation, this is the way to go.

NOVEMBER 1983 33 Huron Park, near Centralia, Ontario, was the place to be for scale modelers last July. Here we see some of the 20 entries in this year's Nats. R/C Scale at ’83 MAAC Nationals By CLIFF TACIE .. . The 1983 Canadian Nationals R/C Scale events were dominated this time by two U.S. modelers from Michigan: Skip Mast and C liff Tacie. H-m-m, Canadian Nats, U.S. winners . . . read on!

• Scale enthusiasts from across Canada and the United States gathered together during the week of July 8 through July 17 at Huron Industrial Park near Centralia, Ontario, for the 1983 MAAC Nationals. MAAC, Model Aeronautics Association of Canada, is the Canadian equivalent of the AMA. Huron Park, at one time an RCAF train in g base, has become a traditional site for the Nats, boasting spacious flying areas with paved run­ ways, and convenient large buildings for a Nats Headquarters and even the indoor Peanut event! Two categories of events were flown in scale this year: FAI F4C, using the proposed 1984 "Stand Off” type rules, and "Canadian Stand O ff” , using re­ This blue, yellow, and red Stearman PT-17 built from a Sterling kit by Al Denton, of Ottawa, cently revised rules and open to models was a very realistic flier. Model weighed 12 lbs., was powered by S.T. .71. up to 25 lbs. in weight with no limit in provide a large base of support for “ perfect" model, a multi-engined bi­ power. It’s interesting to note that the eventual participation in Open Class. ” plane with retracts and flaps is awarded rules for Canadian Stand Off begin with This “ less demanding class” seems to an additional 12% of his static and flight the following statement: be contradicted by the newly instituted scores, making him very difficult to "The Aim of the MAAC R/C S O. rules for scoring static and flying. Under compete against. This is similar to the Scale: what is designated “ Complexity of FAI complexity bonus system, and is fine An event designed to encourage par­ Scale", a contestant is awarded an ad­ for a highly competitive, serious event, ticipation in R/C Scale providing a less ditional 3% of his total score (Static and but hardly seems conducive to encour­ demanding class for modellers without Flight) for each of: A) flaps, B) retracts, aging new scale modelers into competi­ the time to build Open Class FAI stan­ C) multi engines, and D) multi wing. As a tion with the simpler subjects. dard models. Secondly, an event to result, a competitor with the proverbial This year’s turnout for R/C Scale was

Bud Barkley's 1/4-scale Tiger Moth took high points in static and Author's Spezio Tuholer took second place in FAI. Model weighs placed 5th in Stand Off. Model is Quadra powered. 10-1/2 lbs., powered by O.S. Max .60 Blackhead with 14-5 prop.

34 MODEL BUILDER Close up shot of model at right. O.S. Gemini Author's 1/4-scale Sig Clipped Wing Cub. Would you believe it took two 60 yard rolls of Fine Twin 4-cycle engine fits nicely! Line 3M masking tape to paint this beauty? Model weighs 13 lbs. 2 oz.. Second in Stand Off.

Fokker "Super Universal" by Grahm Ireland. Built for Canadian This gorgeous Sig Skyhawk built by Skip Mast was good enough for documentary film . Model weighs 9 lbs, has O.S. Max .60 Blackhead. a first place in Stand Off. Weighs 8 lbs, 5 oz, has S.T. .60 ABC. down considerably from previous Cana­ familiar C-130 Hercules. Skip put the on radios in the Detroit area, flew a cute dian Nats due primarily, it was believed, “ Herky Bird” on a diet over the winter little Sig Smith Miniplane, and modelers to the high cost of gasoline and travel in months, and it’s now down within the from the Buffalo, New York area, in­ Canada, equivalent to about $1.75 a legal FAI weight lim it of 6 Kg. Cliff Tacie, cluded Ed Zindle and Bruce Knox, flying gallon in the U.S.! What may have been from Mt. Clemens, Michigan, brought 1/4-scale Clip Wing Monocoupes built lacking in quantity was made up for in his Spezio Tuholer for FAI. and a new Sig from the Executive Design plans. quality, however, as many of the familiar Clip Wing Cub in red, white and black names in scale modeling were in atten­ colors. Pete Waters, a well known expert Continued on page 74 dance. Among the Canadians were members of the 1982 Canadian Scale Teams: Sepp Uiberlacher, Don Paquette, and Ray Gareau. Jack Swift came not to compete, but rather, to offer his assis­ tance in judging. This Nats was a team selection trial for the 1984 Canadian FAI Scale Team, and Sepp and Ray were joined by Grahm Ireland in what turned out to be a successful effort to qualify for the team. Bruce Knox and Ed Zindle of Buffalo, New York, both flew Monocoupes from Executive Design plans . Note NC numbers on rudders. Original plane had two paint schemes. Scale enthusiasts from the U.S. are also drawn to the competition by it’s relaxed atmosphere and the warm hospitality afforded by our neighbors in Canada. Skip Mast came from Royal Oak, M ichi­ gan with his new Sig Skyhawk and his

As if first place in Stand Off weren't enough. Skip Mast also took first place in FAI scale. Ray Gareau earned a place on the Canadian Scale Team for 1984 with this fourth place w in­ C-130 has four K&B 3.5s, weighs 13 lbs, 3 oz. ning FAI model, a Norseman Mark V. It featured full interior. Webra .60 pulls all 9Π/4 lbs well.

NOVEMBER 1983 35 Coverite's new Pocket Thermometer. This gadget can be used to test The underside of the Pocket Thermometer reveals a coiled strip. heat shrink irons, engine temperatures, etc. Only costs $5.95. Heat causes the metal to expand and move the pointer. FUEL JOE KLAUSE P. O. Box 2699 L.itjuna Hills, CA 92653

ANNIVERSARY TIME ciple of its operation is simply that heat In this issue five year ago, KK (my excites molecules and causes expansion. nickname) wrote his first “ Fuel Lines’’ In this instance, when the stem in the column for Model Builder. Frightening center of the underside coiled spring is thought? Perhaps sobering? More likely placed in contact with a hot cyliner it’s incredible that YOE (ye olde editor) head, heat is transferred, and the resul­ and I have managed to somehow get tant expansion stretches the coil. The along for so long. That ought to be good end of it acts as apoint.and thusit’sonly for a parenthetical comment or two. a matter of adding a calibrated dial in (Sorry KK. ye young editor is reading this order to come up with a simple but one! wrf) OKJ’lldropthewholesubject effective contact thermometer. A fine with this mini-algebraic twister: At that application of an existing natural time, my daughter was half my age, and phenomenon. It’s a similar concept to now the difference is .545. the automatic choke used for so long in NEW INVENTIONS automobile carburetors. Happily, At one time or another we have all Coverite adapted it to modeler uses. It heard the expressions, “ The reinvention can be most useful in checking the of the wheel.’’ or “ There’s nothing new temperature of irons used to shrink under the sun." Now, don’t dismisssuch coverings such as Super Coverite and comments lightly. Why? Because, they’re Monokote, etc. In fact, the instruction indeed true. If you think about it, human beings never invented anything. Strong Con tinued on page 92 words? Not really. Those who are com­ monly called inventors, actually have only applied or adapted what already existed in nature. The operation of our model engines can be quite reasonably deduced back to the first person who discovered how to make fire . . . other than lightning strikes and such. The basic principle is the chemical processes of heat and combustion. Putting it mildly, that’s a long lead-in to tell you about a new product for all internal combustion engine fans and fanatics. About ten days ago, I received a sample of Coverite’s new pocket ther­ mometer. Several of the accompanying photographs show the top and bottom of it, and another depicts its application This is a bent wrist pin. The most probable This piston crown has been badly damaged. as an engine thermometer. The prin­ cause was electric starter and flooded engine. Too much nitro? Bad manufacture? See text 36 MODEL BUILDER 1. Max Starich's "Pacemaker" has had a remarkably long career of flying. This unusual low- winger is still in excellent shape. PLUS SPARKS By JOHN POND 2. Ohlsson powered Brooklyn Dodger by David Owen, N.S.W., Australia.

• We had hoped to bring you the results Since that time,a considerable amount by this columnist due to lack of time and of the SAM Champs held at La junta, of reaction has resulted in a National money. Would you believe time?? In any Colorado, on july 19 through 21, but the SAM Chapter, with John Tidey as Secre­ respect, we are pleased to publish this lack of photos has prevented this. Some tary-Treasurer and Dennis Parker as report as gleaned from the various of the other magazines may "scoop” us Newsletter editor and promotional rep. letters and Airborne magazine. but we always bring the "straight scoop” . The guiding lights, of course, are William AUSTRALIAN SAM CHAMPS . When this writer was in Australia, he Gordon, President, and that sparkplug, Received two nice letters from Monty was a guest writer for the M.A.A.A. New David Owen, Vice President. Tyrrell and Dennis Parker, newsletter Bulletin put out during the Nationals. In less time than it takes to talk about editor of SAM Australia, giving reportrs The article written by this author was it, the initial group of 30 members on the R/C and F/F ends respectively, of pointed directly at the membership decided to hold the First Australian SAM the First SAM Champs held at Goul­ pleading for some action in the forma­ Champs at Goulbourn, N.S.W. over the bourn, New South Wales, Australia over tion of a SAM Chapter in Australia. Easter holiday. This contest was missed the Easter holiday.

3. "Southerner" built bv Barry Lee, of Vic­ 4. Paul Brown recreated this popular Keilkraft 5. "Sugarfoot", an English design, as built by toria. English design by Bill Dean. kit of the Slicker. Beautiful covering job. John St. Clair. Good performer!

NOVEMBER 1983 37 6. Model Builder cower artist, Robert Benjamin, poses with two of his latest free fligfit O/T models (left) at Hart's Lake Prairie. (Chalker photo) 7. Gorgeous rebuild job of Thorall's 1936 Jr. Birdmen winner by John Drobshoff. Both correspondents enthusiastically agree the “ Champs” were a great suc­ cess. However, the high winds did cause some anxious moments for the free fligt boys, as the models were being carried over the main Melbourne-Sydney high­ way. The thought of a four-pound old timer meeting up with a vehicle doing 100 kilometers per hour was not attrac­ tive. As Dennis reports, fortunately, there were no mishaps. He also said that after four fences had been negotiated, R/C was looking very good to him. As luck would have it, the wind finally died and any thoughts of R/C promptly evaporated. Parker was rather pleased that his Lamb “ Climber” won the rubber stick event, but the thing that sticks in his mind the most was the flyoff in Ignition Gas between his “ Miss America” and Max Starich’s “ L.W. Pacemaker.” With 8. James Buice, son of "B o" Buice, is shown here with his hot-flying Playboy Senior (R/C the engine quitting at 25 feet altitude, assist). Max was very lucky his model emerged unscathed. Feeling he had used up all his anywhere ( f/f style), in many cases never knew when your model would luck. Max packed up his gear and took interfering with people on the loosely drop into a hollow. Made for an exciting off for South Australia, 1200 kilometers drawn flight line. These are things that meet! distant. are eventually sorted out as more meets Interesting enough, the Australia Of course, in the wind, activity went are held. Texaco Event, which allows 3 cc per unabated on the R/C side of the field. What really zinged Monty was the pound of model weight, has no 1938 The only complaint Tyrrell had to voice excellent layout of the landing circle, yet date restriction like the American rules. was the arrangement of all cars 200 feet no real defined flight line. A line of 60 This allowed more "m odern" designs to upwind, forming a tee to the takeoff feet would have sufficed admirably. The compete, with Geoff Brown winning area. Many of the new R/C modelers grass was great, being close cropped, with an Enya FS 40 powered Playboy Sr., would simply plunk themselves down but the area needed grading, as you second going to Colin Parker using an

9. Bill Mackey, of New Zealand, sent this shot of his restored 1937 10. Very neat German design, HS-100, as constructed by Erich Tee-Tail design. Punke. Saito 30 four-cycle powered.

38 MODEL BUILDER 11. Stan Ohlsson, of South Africa, built this beautiful Bombshell. Site is the Yisante Kraal 12. Good take-off shot of Harold Munge's Airfield. The "Buzzard" Bombshell was a big winner in the 1940 Nats. C Open: 1st, 3rd, 5th. Ohlsson 60 powered Playboy Senior.

borne have helped immeasureably to aeromodelling circles for this model expose the Aussie modeler to old timers. designs, reporting, photography, and Max probably could have won the Most general all around interest in model Impressive Model award but after being planes. lucky enough to retrieve his model in Paul Brown is shown in Photo No. 4 one piece following a disastrous motor with another Bill Dean design called the run. Max was last seen heading for "Slicker 50” . This design, as kitted by home. Keilkraft, was one of the most popular Photo No. 2 shows Dave Owens, SAM free flight kits between 1946 and 1952. Vice President of Australia, with his free Keilkraft must have sold a million of flight Brooklyn Dodger. Owen runs an them! engine distribution business and pro­ For those interested in the Nostalgia vides a service for spark ignition en­ Event (dates 1943 to 1956), one would do 13. Crackerjack flying Jimmy Allen "Blue­ gines. In his last letter to this writer, he well to look at the English designs of the bird" as built by Sherman Gillespie, San Jose. has started to gather up as many O /T 1950 era, as many were extremely com­ plans as he could to form a "plan bank" petitive. To show what we mean, Joh n St. OS FS 40 in a Simplex, and third taken by for the newcomers to old timer activity. Clair is shown in Photo No. 5 with an Bruce Knight flying an OS FS 40 powered Owen had a most unusual idea to English design known as "Sugarfoot” . New Ruler. Looks like the Australians prevent the rivalry that is so prevalent Good flyer! have discovered early in the game how between the states of Australia. In this Probably the best way to summarize economically the four-cycle engines first meet, Dave announced there would the meet would be to take Monty Tyr­ run! be no state distinction of the modelers, rell's closing comments as published in Merv Buckmaster, editor and pub­ only the idea of a unified SAM Australia the Pakenham & District Aircraft Radio lisher of Airborne magazine, donated organization. Great ideal! Control Society (PARCS): “ Those pres­ three prizes for the most impressive Barry Lee has been around a long time ent had a good time overall, and every­ airplane in each R/C power event, and in free flight and can be seen in Photo body went away with some knowledge one for the best free flight gas powered No. 3 with his "Southerner” , a Pill Dean gained from the other guy to improve plane. Results: design. Bill, of course, is well known in his performance next time. That’s one Bruce Knight (New Ruler) Texaco R/C Nel Gillot (Clipper) Duration R/C Max Starich (Pacemaker L.W) Duration F/F The Most Impressive Overall award was won by John McCarthy, using a rubber powered model known as the "Club Duration". This first meet was marked by quite a few odd-ball designs (we call them sport) as the “ hot dogs" are not yet dominating the field with a few designs. This is readily observed from such designs as Monty Tyrrell’s Torpedo powered Tuxworth "Baby Barn­ stormer” ; also his Dennyplane, using a Webra for power. Might be noted despite the weight and lack of gas economy, Tyrrell's model placed 12th in Texaco, the highest of any of the Vic­ torian boys! Photos: Never thought we would get around to them, huh? Most of these photos were taken several months before the Champs, but the modelers are still the same, so let’s take a look at what was used. Photo No. 1 shows the Saddler "Pace­ maker” low wing as built by Max Starich at least five years ago, and powered by a Brown Jr. Max has successfully demon­ strated this model at all of the M.A.A.A. Nationals, hoping to arouse interest in old timers. His early articles in A ir­

NOVEMBER 1983 39 14. Ex-Californian, now Wyoming resident. Chuck Provance, poses 15. The Beauty Event lineup of Antique models at the SAM Annual with his California Chief A-2. P.A.W. 1.4 diesel powered. (Johnson) (that's Salinas Area Modelers). Dowling photo. of the good things about aeromodelling. as technician, manager, and even tested The Kratmo 10 was the big production which besides the flying, makes for a his own engines in models! To keep the engine of the Kratzsch plant,being most splendid competition, good com­ business rolling, he also designed heavily produced in the 1937-39era. The panionship. and satisfaction in a hobby machine tools for the manufacture of 10 cc Kratmo engines were distinguished we all are proud to participate in." steel cylinders, alloy pistons, and other by a bulbous spinner, a large circular ENGINE OF THE MONTH internal combustion engine parts. mounting flange, enclosed timer with a This month we are indebted to Jim At this time, we would be remiss if we neat locking arm, and a sheet metal brass Crocket, who runs Crocket Replicas, failed to acknowledge the write-up on tank. Of course, improvements fol­ P.O. Box 12600, Fresno, CA 93778, who Walter Kratzsch by Gerhard Everwyn. lowed, consisting of a more pointed has so kindly provided this columnist appearing in the MECA Bulletin “78. spinner, three mounting lugs to reduce with a little seen German engine. wherein Gerhard sketchily traces the the weight of the large mounting flange, The "Kratmo” , a 10 cc production development of the Kratzsch engines. and a plexiglass tank. The heads, inci­ engine, was to Germany what the Brown As we run into additional information, dentally, came in two styles, flat fins (as Jr. was to America. In experiences we will be sure to feature other German similar to Bill Brown, the designer. engines as produced by Kratzsch. Con tinued on page 78 Walter Kratzsch of Gosnitz. Kr. Alten- burg, (near Leipzig) made up several OLD TIMER Model of the Month cylinder opposed engine, and was the designs before he hit it big. The Brown basis for the model presented herein. |r. engine influence can be seen in his The 22-inch span rubber model of the design. Arup (’scuse me) was designed by Gor­ In starting out. Kratzsch was a diesel ARUP don Englehart, and published in the engineer who founded a small factory in Designed by: Gordon Englehart August 1936 issue of M.A.N. Although 1936. initially employing two men. The Drawn by: Al Patterson my memory is vague, I must have built first engines, of course, were meant to Text by: Bill Northrop one, as the somewhat crude pencil lines replace the Baby Cyclone and Brown Jr., from tracing the full-size ribs can still be the only engines available at that time. • "W hat’s the name of that model?’ seen in my copy of the mag. With the National Socialist Party (Nazi) "Arup. . .” The wing has to be built first, as the embarking on a tremendous aviation "W ow! That must fuselage is built onto it. And right away training program, it wasonly natural that have been a we have a problem. The drawing shows a models in ascending complexity would good sandwich. flat top spar in the front view, with the be developed for the Hitler Air Youth Anyway, bottom spar dihedraling (new word?) up Program. All drawings this columnist has what's the to it. However, the text says to crack the of the early German designs called for name of the top spar at both No. 1 ribs and raise it some type of Kratmo engine. model?” 3/8-inch at each tip. The photos of the With a successful local product avail­ There's no other way to pronounce model don’t help in solving the prob­ able. the German government imme­ the name. And when you do it, you feel lem. If it’s any help, the photos of the diately requested a tremendous batch of like saying, “ Excuse me," and apologiz­ "next edition” in P A. indicate a fairly engines, and was even willing to sponsor ing for not covering your mouth. Of thick airfoil with the leading edge at Kratzsch to set up a larger manufactur­ course, if you were to say. real fast. " It’s zero dihedral all the way out, and the ing facility. The net result was a modern the Arup Flying Wing, designed by Dr. tips tapering up or down to meet the factory in 1939 employing 120 people. Snyder. South Bend, Indiana,” you edge. I’d be tempted to follow the plan. According to figures available, over might get by with no more than, "Good In any event, use a building board and 15,000 engines of the Kratmo 10 type grief, whatta name!” shims. The instructions sort of imply that were produced. The August, 1936 issue of Popular the wing was assembled acapella, which In addition to producing the finished Avialion featured photos and a descrip­ is risky. engines, Kratzsch also made engine kits tion of not this model, but the “ new Balance point was not discussed in the of the Kratmo 10 for school instructional edition” of the Arup, with a five-cylin­ flying instructions. “ If the model stalls, use. and for those modelers wishing to der, 70-horsepower Le Blond engine add weight to the nose or turn the machine their own engines. These and trike gear, plus what appears to be flippers down (the latter being pre­ engines, although built to the instruc­ an additional stab and elevator mounted ferred to get it trimmed, it should be fun tions, show some variances, hence, the about two-thirds of the way up the fin. to fly once it gets straightened out. slightly different models of Kratmo The original aircraft, which we can only Hmmmm . .. let’s see . . . throttle, engines to be found. guess must have been created in late rudder, elevator, "trimmer flaps” , three Walter Kratzsch, himself, was quite a 1935 or early 1936. was powered by a times up to 66-inch span .. . make an versatile engineer, as he not only de­ Continental A-40, 40-horsepower, two- interesting experiment for R/C! · signed the Kratmo engines, but served 40 MODEL BUILDER NOVEMBER 1983 FULL-SIZE PLANS AVAILABLE - SEE PAGE 96 41 2. Yiu-Wah-Li, an eight year old chopper pilot from the San Fernando Valley of California, shows us what you can do if you put your mind to it. Imagine, he's only an eight year old!

1. Yiu-Wah-Li proudly displays his Falcon 707. Could this young man be the world's CH O PPER youngest chopper pilot?

By RAY HOSTETLER PHOTOS BY AUTHOR CHATTER • To start off this month, I thought I'd issues I reviewed the GMP Competitor, give you a little incentive. Now it’s sup­ and mentioned that the Competitor’s posed to give you incentive to get out rotor head was much the same as the full and practice, although I suppose some size Jet Ranger’s rotor head. Photo 3 will of you will view it as a reason to give up refresh your memory of how the Com­ altogether.. . petitor's yoke is designed. Note the two Photo 1 shows Yiu-Wah Li, eight years bearings on the yoke for feathering old, showing off his Falcon 707 with a JR action and the thrust bearing on the end Unlimited Radio and an O.S. 50 FSR-H for centrifugal loads. engine, just this spring, he was in Now have a look at Photo 4, where I’ve training gear, skidding around on the shown a full size Jet Ranger’s yoke and asphalt. Photo 2, taken in late spring, blade grip. This arrangement uses roller shows Yiu-Wah in a stabilized hover at bearings set in the grip for feathering the San Fernando Valley helicopter fly­ action. They do not have an inner race, ing site, just northwest of Van Nuys. He but rather, they run directly on the 6. Airtronics new helicopter radio. Single and his father, Tat, have gone after heli­ hardened yoke at the inner and outer stick control, see text for details. copters with a passion, and must have positions. nearly eight flyable helicopters at this Centrifugal loads are taken up by TT on to the blade grip. In turn, the blade time. And your wife thinks you have too (tension-torsion) straps which run grip holds the blade. When the blade many helicopters! through each side of the yoke. Each feathers for cyclic or collective pitch, the ROTOR HEAD YOKES strap is secured in the center of the hub, TT strap is flexible enough that it twists In the August and September '83 then runs out the yoke where it anchors along with the movement of the blade grip· The U-shaped machined areas at the center of the yoke hold the trunion bearings which allow the hub to teeter and support the weight of the helicopter in flight. Photo 5 shows the relative size of the yoke as it is held by a trusty Grand Canyon mechanic. Bob Pistorino. One thing for sure . . . you don’t drop these components on the concrete! NEW COMPETITOR ADDITIONS While I’m thinking about the Com­ petitor, I want to mention that Gorham M odel Products has released a new canopy for the Competitor, which covers the main frames to the start of the tail 5. Here's a full-size Jet Ranger yoke . . . just right for weight training and muscle building boom. The Kalt Baron 60 and Schluter’s programs! This is a very expensive part, and not something to play around with. Superior seem to have spurred the

42 MODEL BUILDER 7. Schluter's new Superior helicopter is distributed by Miniature 9. As you can see from this picture of the Superior without its Aircraft Supply. See text for a description of its features. canopy, the servo arrangement is very clean and simple.

10. A close-up view of the Superior's rotor head reveals its Heli-Boy heritage. The new head has many more bearings throughout.

advanced beyond the novice stage, correctly, you can also set the high and should strongly consider this bearing low curves of collective throw. update. Write to GMP for their latest In the next new few months, I hope to information and price sheet — 23961 have a detailed report on the operation Craftsman Rd., Calabasas, CA 91302. and flying characteristics of this radio. AIRTRONICS NEW HELI RADIO I’ve been frustrated for too long waiting 8. Left side view of Superior. Visible are: 20 At the MACS show this year I had the for one of the new hi-tech radios with oz. fuel tank, cooling shroud, main gears. chance to stop in and talk with Cliff ball bearing servos to come out on the market in a single-stick configuration! Weirick, of Airtronics. I had heard about development of this addition. It defi­ Anyway, as soon as it comes, it's going their new single-stick helicopter radio, nitely changes the looks of the ship, and directly into my Competitor for a thor­ and Cliff showed it to me first hand. It personally, I think it looks very nice with ough check out. has all of the features the discriminating the canopy addition. SCHLUTER’S NEW RELEASE More important than the canopy in single-stick pilot will be sure to appre­ Also at the MACS show, Walt my estimation is the new ball bearing kit ciate. .. Schoonard was showing Schluter's new available for the collective system, Among the features are dual rate Superior. This is another of the high which eliminates all bushings in the exponential on roll and pitch, automatic class, full ball-bearing equipped heli­ levers and bellcranks to the head. This tail rotor mixing, collective trim, servo copters. It is basically a high-zoot off­ makes a very fine collective system even reversing switches, end point adjust­ shoot of the Heli-Boy. Judging from better. I would recommend that those of ments for servos, inverted capability, Schluter’s past quality of kits, the Supe­ you who have a competitor and have and throttle hold for autos. If I remember rior w ill probably assemble easier and Con tinued on page 66

4. Full-size Jet Ranger yoke and blade grip. Note the almost invisible six-inch ruler just below 3. GMP's Competitor main rotor head yoke, the yoke .. . without something for size reference, these parts could be mistaken for R/C parts. Note 2 feathering and 1 thrust bearing.

NOVEMBER 1983 43 Six A OPC Tunnels score up for the start of a heat in this year’s N.A.M.B.A. North American Nationals, held in Brittish Columbia, Canada. R/C POWER By JERRY DUNLAP BOATS

B.C. ’83 — WHERE CAN IT BE? something while driving around in an to serve as a running site for a race of this "B.C. ’83” was the slogan for this year’s unfamiliar environment. To the best of type. The portion of Burnaby Lake used North American Model Boat Associa­ my knowledge, however, all the model fo r the racing o f the 1983 NAM BA tion's big race. B.C. is British Columbia, boaters who were looking for the "B.C. Internationals was developed in 1973 as as in Canada. This year’s event marked '83" running site eventually found it. a center for training and competition in the first time NAMBA’s big race has ever The running site itself was certainly the sports of rowing, kayaking, and been conducted outside of the states. worth the effort of finding. Burnaby canoeing. The facilities available were "W here can it be?" is a question many of Lake is a unique blend of preservation of the finest I have encountered for any us asked as we wandered around the nature and development for recrea­ model boating event. These included Vancouver suburb of Burnaby attempt­ tional use located amidst a bustling the large Burnaby Lake Pavilion, docks, ing to locate the running site. I came to urban setting. More than one partici­ starting tower, and bleachers. The Cana­ find out that I’m not the only person pant mentioned that the setting was dian Marine Modelers, the host club, is who gets upset when he can’t find possibly the most beautiful location ever to be congratulated for their efforts in

Six C Monoplanes prepare for a start. This shot was taken from the The grandstand at Burnaby Lake provided excellent spectator view- top of the judges' tower, sixty feet above the water. ing. With such first class facilities, it is not hard to see how both spectators and boaters alike would like to come from miles away.

Well-known names in N.A.M.B.A. were winners in A Deep Vee/Off- Chuck McGaughy's R/C Unlimited "U-95" and Sport 40, Division I. shore. Ed Fisher (r) first, Howard Power (c) second, and Wally Chuck is former N.A.M.B.A. District 1 director, and is now living in Stewart (I) third. San Diego.

44 MODEL BUILDER Tom Christenson pilots the chase boat in for another docking. "B.C. Joe Monohan's Prather 7.5 Tunnel was second in B OPC Tunnel. '83" was made successful by many hard-working Canadians. Same boat helped Joe place 2nd in the Team Marathon event. obtaining this outstanding facility as the racing site. The Canadian Marine Modelers, under the direction of Contest Director, Malcolm Fraser, did an excellent job of organizing and conducting the "B.C. '83” event. Having done two NAMBA national events, I know from experience the time, effort, and frustration that goes into staging an event of this magnitude. Malcolm, Judy, Tom, Wendy, Chris, Dave, and all you other fine folks from Canada . .. you did a super job. Any event of this size is bound to have some Ed Fisher drove this Outlaw to victory in Sport 40, Division II. Hull is a modified R/C Glass problems and there were a few at “ B.C. hydro with K8iB 7.5 and Kraft radio. ’83.” It was encouraging to see model boaters from Washington, Oregon, and How does one cover an event like a racing. While leading in a 3.5 tunnel class California pitching in to assist the Cana­ national model boat race? One method by half a lap, with only a half a lap to go dians. It takes people to make events like would be to start with day one and give to the finish, I ran over a dead boat that I this successful, and lots of wonderful some type of accounting of each day’s managed to forget was in my path. My people assured success for “ B.C. ’83.” activities. Since I wasn’t there for all boat flipped, and I was disqualified for seven days of racing, we can rule out that hitting a called dead boat. That was the approach. Another way might be to give highlight folks. It was all downhill after a glowing account of my individual that. For those who want to know, a list· accomplishments. My less-than-glowing of the winners of awards in each event accomplishments with my 3.5 and 7.5 will follow. My coverage of “ B.C. ’83” tunnels eliminates that avenue. My will focus on personal opinions and individual accomplishments can be experiences other than my racing. capsulated by relating my first heat of I find it interesting to observe how my

Richard Hazelwood managed to rear-end another tunnel and keep running. Richard brought both boats into the pits and relaunched into the race . . . only to be disqualified for relaunching!

Jack Garcia came prepared for bad weather. . . A propeller shield provides protection for human body parts like hands and arms from being and got some! Jack works for K&B's R&D. eaten alive while starting R/C power boats. Get one or make one before you get hurt.

NOVEMBER 1983 45 Participants in B Deep Vee/Offshore dash for the drivers' platform while pit crews prepare to launch their boats.

brothers from the San Diego Argonauts, Talk about your smoke screens. Being a and Ed Fisher and Bill Hornell from the "real pipe smoker,” Jack doesn’t smoke Seattle Model Yacht Club. those pleasant smelling tobacco blends. Another person who ran a bunch of Jack can just be happy that no one from A view of the starting pits as a Class C Mono­ boats was Jack Oxley from Los Angeles. an environmental protection agency plane heat lineup was being readied. Two things impressed me about Jack’s was there m onitoring air quality. Should own thoughts about competition at an accomplishments. Firstly, he always the truth be known, I’d even smoke that event like this have changed. At one seemed to have a needle valve setting stuff if it made my boats go as fast as time, I’d have entered every possible that was right on the dime. Secondly. I Jack’s. class for which I could muster a suitable don’t think I once saw him without his An event like this is as much talking as boat. After 17 years of model boating, pipe in his mouth. A real racing experi­ it is racing. And for me, the talking was a that doesn’t seem so important any­ ence is to be downwind from Jack as he whole lot more satisfying. I found out more. However, I’m still impressed by puffs on that pipe and races his boat. that people who had been hospitalized those people who bring a large fleet of boats and spend six or seven days engaged in model boating. That takes real commitment. A couple of groups that come to mind for this type of dedication are Bev and Howard Power, of the Gold Coast Model Boaters, Cathie Galbraith. Al Williamson, the Holland

N.A.M.B.A.’s newest Hall of Famers: Wally Al Williamson, San Diego, won the B.C. Cup "The Three Stooges Racing Team" took 2nd Stewart (left), and Chuck McGaughy. for R/C Unlimiteds. Model is "Miss Burien." Team Marathon. Garcia, Monohan, Hazelwood.

Elevated judges' platform provided excellent view of action. Racing Judi Hazelwood managed to tangle her throttle cable on her Prather (left to right) are: Brian Dallas, Rod Garaghty, Leo Dreith, Monohan. 3.5 Tunnel. "Trick setup" allowed more prop speed, control. HA!

46 MODEL BUILDER Ed Fisher used a Prather Deep Vee 40 to win C Monoplane and a Richard Fish's Freedom Boats Deep Vee took second in Class C second place in B Monoplane as well. Monoplane.

Bill Hornell used a Ward Marine Offshore 31 to win the A Monoplane Rod Geraghty won the A OPC Tunnel event on his 1st attempt to race event. Bill used a K&B 3.5, Kraft radio. Bill is Offshore Chairman. in this class. Where do you go from there? Model is Geraghty Tunnel. were doing better, and that was good Norm Teague that bees won’t bother dock. Rich kept his engine running news. I found out that a model boating you if you leave them alone. The next while the other boat was disengaged. friend of mine was very ill, and that time a bee landed on Norm, he allowed When his boat was relaunched Rich was wasn’t such good news. I had long talks it to remain. After being left alone for a disqualified for relaunching after the with Mr. Octura Models, Tom Perzentka short time, the bee stung Norm. Richard start of a heat. Sometimes rules don’t about products and people back in his said it was because the bee could smell always provide satisfactory justice. area. Charlie and Pat Pottle, who once fear. The proliferation of classes being again are handling Marine Specialties, I have to tell one more Hazelwood offered at the NAMBA national event is were there as spectators and always as story. Anyone who has been around a potential problem. Even with seven friends. Lots of time was spent discuss­ racing has seen some crashes. We prob­ days devoted to racing it is becoming ing organizational concerns with folks ably all have our favorite crash. There increasingly difficult to squeeze all the like ΝΛΜΒΑ Directors Wally Stewart were the usual crashes at "B.C. ’83.” One different classes into the schedule. I for and Howard Power, and President Stuart that Rich Hazelwood was involved in, one do not favor adding more days to Russell. however, was rather unusual. During a accommodate more classes. Although I I watched in disbelief as jack Garcia heat of 7.5 tu n n e l, a boat spun out dearly love model outboards, it would plucked a bee out of a puddle and directly in front of Rich and he smacked appear that this is one area where there proceeded to let it crawl along his arm. it in such a manner that the two boats could be some consolidation with in­ The bee eventually dried sufficiently to were wedged together bow-to-transom. board classes. I believe that outboard fly off. I laughed as Richard Hazelwood Rich's boat kept running, and he man­ told the story of how he once convinced aged to bring both boats back to the Continued on page 93

Judy Prigley (driving) and Bev Power (counting K&B's lO cc Outboard on 7.5 lower end. The Bev Power displays "B.C. '83" pins and laps) won the Team Marathon. Set new N.A. new K&B .67 inboard engine is due for release T-shirts. Bev won R/C Unlimited Consolation M.B.A. record, too! Watch out guys! this fall. No date yet for the big outboard. race. Trophied in five other classes! Busy Bev!

NOVEMBER 1983 47 Have a last look at the Associated RC150 Club Racer (minus body). Here is the Dirty Racing Team's Associated RC500 which sees action Bumper is home made unit. Note K&B .21 engine. in the Northwest GT racing circuit. MRP Camaro body. R/C AUTO NEWS r z ? = 0RD

ASSOCIATED RC150 IN COMPETITION slipping when changing front wheels. any more gear problems. As this is written, John Snyder has Ball bearings for the front wheels were Due to using the older type of Delta eight races, plus several practice ses­ not used as the oilite bushings work fine. slide-valve, which uses two separate sions, on the RC150 Club Racer 1/8 car A two-piece rod between thesteering needle valves, we needed two feed lines . . . plenty of running time to make a few servo and the servo saver was used, from the tank, as a simple T fitting in a observations .. . and to suggest a few simply to make adjustments here easier. single line will not work. John just changes. Two rods are made up, each overlapping tapped into the molded-in fuel passage First, to freshen your memory, we the other by an inch or so. At the in the tank, just below the stock outlet. started with a stock Associated RC150, overlap, two 1/8-inch wheel collars This works fine. Flowever, just the other available for the ridiculously low price of cinch down on the 1/16 rods. day I had reason to cut into one of these $75. It is also available with a K&B .19 for Gear life on pan cars has always been a tanks and found out that there is an only $100! And Associated says “ Take problem as the gear hangs down below identical internal fuel passage on the left that, guys!” to most everybody else the pan and gets whacked once in of the tank that could have been used, selling 1/8 cars... . awhile, john made a gear protector, even though it doesn't have a built-in First thing dropped in was an 8800- which is simply a machine screw bolted filter and does not extend all the way series K&B 21, fitted with an out-the- to the motor pod as close as possible to into the sump. back Thorp muffler and an older-model the gear, the head of the screw on the John had quite a lot of trouble with Delta slide-valve carb, both out-of­ bottom of the pan. It was necessary to the disc brake, to the point that we were production pieces. Sticking with a low- use washers under the head of the screw very seriously considering making our bucks approach, we used an old (an­ to get the desired height. This screw own unit. Flowever, it turned out that I tique almost!) JoMac radio system that takes a lot of abuse, especially on rough wasn’t remembering everything I has many, many races on it. A 5-cell pack tracks, so it has to be replaced once thought I knew about brake systems. was used, made up of AA NiCds. For the every few races. The good news is that The problem was that the brake was tank there was only one choice, ours once we got the clutch, brake, and idle super-critical to adjustment, and that came from Associated, the same thing is settings right (we melted a couple gears the “ just-right" setting was very narrow. also available from Delta. No other tank from a too-high idle), John didn’t have This was compounded by the fact that currently available is suggested. Super tough Delta body posts were installed at the front, an MRP Tweak Plate was slipped under the stock servo saver and MRP also came through with a 12-tooth clutch bell/union nut/needle bearing assembly. Delta heavy duty output arms were used on both servos, along with one of their linkage kits on the throttle servo, they also supplied the neat an­ tenna mount. That pretty much covers the bolt-on stuff. Modifications to the basic car were few, mostly detail refinements. At the front we shimmed the tweak out of the car using thin washers under the front cross-bar. Yes, the MRP Tweak Plate does the same thing, but I think you will find this handy little gizmo is best used as a fine-tuning aid instead of being relied upon to remove large amounts of tweak. (Tweak is an unequal loading of the front tires — which translates into an unequal loading of the rear tires. We just think of it in relation to the fronts as this is where the adjustments are made.) The axles were epoxied into the Okay, so it's not the prettiest picture I've ever taken, but how else would you do it? What you steering blocks, as they were prone to are looking at is Kraft's new line of show-biz wheels for off road cars. Lotsa chrome!

48 MODEL BUILDER About the only other mod from stock is a recent one. John had finally ground most of the screws common to the undersurface of the pan down to almost nothing and replaced all with new screws. This involved countersinking the pan, however, he went a little too deep with the countersink, and used oval­ headed screws. I see that in the last race the front end took a healthy whack, and that one of the screws holding the cross­ bar is close to pulling through the pan. A new pan is on the way; next time I’ll countersink the thing myself (I have a drill press and John doesn't), and proper aircraft-grade flat head screws w ill be installed. SO HOW DID IT ALL WORK? The basic chassis has been very reli­ able, much more so than I would have thought originally (after all you are supposed to get what you pay for, right?) and when all the Good Times racing is stacked up against the price of the car, the RC150 is easily the best buy available The brake actuation spring on this RC150 proved to be too heavy for the job, so a lighter one in 1/8 racing, even if not up to the was substituted and the disc brakes were much better. performance level of today’s suspension John had yet to learn that a light brake is season, we finally got out heads to­ cars. It is possible to break this car, just as best for most tracks, and the only way to gether, put a set of soft fronts on the car, it is with any race car, but John hasn’t go at our club track. Sohewanted lotsof and now it turns well enough to once in had any breakage, no bent axles, no brake, but was usually getting too much. awhile need some steering throw taken problems with the motor and its m ount­ We finally solved the problem by using a out. John is slowly cutting back on the ing blocks coming adrift, no broken much lighter spring between the brake brake. wheels or any of that race-ending stuff. I arm and the adjusting nut on the brake Before you make the wrong assump­ am sure that use of the MRP clutch actuation rod. The one originally used tion here, you should know that our assembly and its needle bearing has was simply too stout, the light number club regularly uses quite a lot of VHT on avoided a few problems and it is highly nicely broadened the brake setting to race days (Very High Traction is literally a recommended. where it was no problem anymore. glue used by drag racers for more As for handling, it did take a few races We had another problem which was, traction at the starting line), so the for John and I to get it sorted out. This again, due to my not paying more traction is quite good. As I write this, I process was complicated by the brake attention. John insisted on using way have the RC150 here at the house, and problems, as well as my assumption that more brake than he should have; every now I notice that for the last race John he had on hand a selection of front tires, time I would tell him to lighten the slipped on the stock cut-foam tires that John’s lack of experience at 1/8 (this is brake, he told me the car w ouldn’t turn came with the car. I have never cared for his second year of racing), and a severe well enough that way. All the time I was those particular tires, especially on a lack of communication at the track. It's assuming he had the right tires for our solid-axle car, but they did the job last not that we don’t talk; we do. And we pit track (stock Associated rubber in the weekend. Seems like once I figure I together. However, I am nearly always rear which is just OK, and Associated know all there is to know about RC cars, running at least two cars out of my pit medium molded fronts, generally the somebody uses something I know won't area, plus helping others at the races, best bet for this type of car). In fact, he work . . . and it does work! and John is just independent enough to did have these tires on the car, but I was The humongous rear bumper looks want to try things hisown way more often certain I had also done up some Asso­ pretty ugly, but it works and is needed to than not. The bottom line is that we ciated soft molded fronts for him, and protect the muffler which can be should have been able toget the car well that if he needed more steering he crumpled in a nasty rear-ender. Notice sorted out two or three races into the would have slipped them on the car. that one of the older can mufflers would season, where it actually took twice that W rongo! So after suffering through bolt right on the bumper, in fact, we understeer the first few races of the intend to install a can sooner or later. Continued on page 88

Two new goodies from Associated: super flexy wire for 1/12 installa­ More Associated goodies: 1/12 and 1/8 size wheel and tire combos. tions, and a lifetime supply of modified motor tape. This rubber gives better traction, comes in three grades of density.

NOVEMBER 1983 49 By DICK HANSON

Dave Stuart and Bob Gustin (right) hold three models, all powered by O.S. ABC .61s: the CAP 21 (far left), Dalotel (No. 16871), and Tipo.

• We would like to start this month by most of us, but if we want to fairly com­ will doubtlessly see someone try this. jumping into our preliminary tests on pare the potential of each basic design, (Otto? wen) the new O.S. 1.2 cubic inch single­ we must look at all the possibilities. All of our tests are done here in high cylinder four-cycle engine. It’s half of a It looks like the cards are stacked in and dry (well, sorta dry) Utah, at 4300 Honda motorcycle engine disguised as a favor of the two-cycle, tuned exhaust, feet elevation and low average humidity. model airplane engine. At least that's twice the number of power strokes, So that we could insure no damage what it seems to be. ears of refinement, etc. On the other would occur through overheating, we The reason for our anxiety has been and, we have the inherent higher took the precaution of using very oily (20 our desire to find an alternate to the O.S. torque possibilities of the four-stroke. - 25%) castor/synthetic fuel having Gearbox engine. The Gearbox is a fan­ This is because the engine gets a full, about 15% nitromethane. The bottom tastic machine, and the possibilities of a fresh charge of fuel each cycle and the line here is that you should be able to get four-cycle engine which would approxi­ exploded (burned) fuel is allowed to as good or better results from this mate tne power output seemed remote. push the piston through a /ongerportion engine than I have obtained. Before we get going, I must preface of the stroke. The first test was to bolt on a stock the test results with some facts about the Well, the O.S. 1.2 has some very nice 14 X 8 Zinger prop and try to establish a Gearbox engines that we are using. engineering work in its design which lets feel for the correct needle valve setting. We use tuned pipes in order to extract the air (fuel mixture) flow in a fine The engine started with the first slip and maximum power and eliminate the fashion. Also, the materials and assembly after some rather obvious rich, full- power loss that occurs at high altitudes. are absolutely first rate. The only thing I throttle running plus various midrange The pipe acts as a supercharger so that can see which could have possibly settings, we tweaked the needle expect- we get about the same power at 7000 added power would have been the feet as we get at sea level . . . at least addition of a timed spark ignition. We Continued on page 66 that's what our tachometers tell us. Of course, the efficiency of the props and airframes at different altitudes changes, but if we keep the models light, the changes are not a problem. A second fact about the Gearbox engines is that the gear ratios used dictate the prop size and desired model size, weight, and speed. Basically, you use the 1.4 gear with a smaller prop, say 13 X 8 to 14 X 10 with lighter, smaller models such as our 920 sq. inch C.A.P., which weighs 9 to 11 pounds. The 1.9 gear engines take care of larger birds having up to 1400 sq. inches and accept propellers such as 15 x 10 or 16 X 10 very nicely. The 1.2 cubic inch four-cycle, on the other hand, is nor­ mally aspirated (no supercharging), and as such, will suffer from high altitude power loss just as any other engine, two or four-cycle, will suffer if there is no provision made to increase the size of the mixture or the potency of the mix­ ture used for fuel. O.S. four-stroke and Wankel are mounted on author's scientifically engineered engine test Well, that’s pretty academic stuff for stand. Author reviews the O.S. engine this month w ith surprising results, see text. 50 MODEL BUILDER

Mark Smith's "Panic" R/C FAI/F3B glider, constructed for the This beautiful Peanut Bell P-39Q built by Lubomír Koutný, of World Championship in York, England, in less than two weeks. Czechoslovakia, was proxy flown in France by Roger Aime. It is including F/G molds! Late news - Mark finished 7th out of 65. good to see this kind of international cooperation.

Typographical errors are a bugaboo to We had the pleasure during July of cow, the Soviets have a baby elephant any publication, and we’ve had our fair watching Mark Smith practicing for the named Batir that talks. The critter, with a share over the years. But we thought the world R/C glider championships. The claimed repertoire of some 20 phrases, creative spelling in a recent Airpower model he was flying is called PANIC, an was hand-raised by humans, and it is Museum Bulletin deserved some sort of apt name considering that it was fabri­ understood that tape recordings are prize. In it, the 1911 French monoplane cated in only two week’s time, including being made available to help convince in the San Diego Aero-Space Museum the fiberglass molds! Current FAI F3B the skeptics... was described as a “ DUPPENDUSION” gliders are remarkably advanced, fast, LOW PRESSURE FUN (sic!). and heavy. M ark’s weighs about 5-1/4 Walt Mooney conducted one of his FAREWELL BUCKY pounds, yet is capable of still-air dura­ popular outdoor contests for Bostonian The world has lost one of its most tions in the neighborhood of five min­ class models on July 4th. In keeping with creative citizens with the passing of R. utes. the patriotic theme, each model was Buckminster Fuller, possibly the nearest Part of the explanation of such high required to display some kind of Ameri­ thing to a universal man since Leonardo performance may be found in Mark's can flag, and some clever entrants da Vinci. piloting skills, of course, as well as in the complied with this rule by simply pasting Well-known for his geodesic domes. aircraft design and execution. However, 20-cent flag postage stamps onto their Fuller's most important role may have some of the credit is due to the type of models. Airmail, anyone? been as a philosopher who tried to show winch employed for launching. These Another innovation wasamass-launch that properly employed technology electric catapults have been dubbed event in which any sort of free flight could solve most of the world’s prob­ with various sinister-sounding labels, model was allowed to compete. The lems, such as hunger, housing and such as "G orilla W inch", and have been lineup included everything from de­ energy shortages; a proposition un­ the subject of much controversy. The tailed scale models through sport jobs fortunately opposed by the majority of speed and altitude they impart to a and hand-launched gliders. How could Earth's governments. As Bucky so suc­ glider simply must be seen to be be­ such a conglomeration compete fairly? cinctly put it: “ Politics will have to go." lieved. The stresses they impose on the Easy. Mooney merely announced that in A prolific author (25 books), inventor aircraft are reflected in the massive steel (about 2,000 patents), lecturer, poet, wing-joining rods, super-strong struc­ Continued on page 64 mathematician, and map-maker. Fuller tures, and even in the large diameter frequently applied aeronautical theory monofilament launching line, which ana fabrication techniques to such appears adequate for shark fishing! diverse design fields as housing, ground To one accustomed to stick and tissue transportation, and climate control. models, such a glider seems impossibly Philosophically, his "Spaceship Earth" heavy. Yet, the proof is in the results concept may have been the most far- achieved. Our thanks to Mark Smith for reaching in its implications. As early as this most convincing demonstration. the 1920s, he proposed workable solu­ TALKING ELEPHANT? tions to most human problems. Rest in Need an appropriate mascot for your peace Buckminster Fuller, your con­ next Peanut Scale meet? How about one cepts will live on. that can also serve as an announcer? SOPHISTICATED SOARING Well, according to reports from Mos­

Zany Doc Martin with his Peanut scale Fabre, Two Dornier pusher-pullen - winners in the Jacques Pouliquen Memorial contest. Note that the world's first successful hydro-aeroplane. one is a two-seater, the other is a single-seater. Models and photo by Emmanuel Fillon. Photo by Frank Scott.

NOVEMBER 1983 55 separately. In fact the G-5 and the Zipper are one and the same, and the airfoil he lists as the Goldberg Zipper is in fact the G-6, which he described earlier, is the airfoil used on the Sailplane. To straighten out all of this confusion, I present to you two corrected Darned Good Airfoils this m onth: The Goldberg G-5 and the Goldberg G-6. NOVEMBER DARNED GOOD AIRFOILS Goldberg G-5 and G-6. The G-5 preceded the G-6 and was used on the highly successful Goldberg Author's rendition of the Hutchinson Deja Zipper. . . the most renowned free flight Vu . Site is Hart's Lake Prairie, Western THERE IS NO ONE MORE INCENSED model of its time. Its forte was its ability FAI Challenge. Ship is powered by a Cox THAN AN EXPERT SCORNED to handle large amounts of power and Conquest .15. Well, well, back in July, I ran a short fly well flight-after-flight. By today’s labelled as the G-6. It is a section that is feature on the puzzle I was having on standards, it is pretty thick. It is, how­ not from any model that Phil Hainer was the identification of the “ real Goldberg ever, an excellent gliding section. It able to locate. Can anyone identify it? G-5 airfoil.” Riding to the rescue with must be used with false ribs and be Mystery solved, so help me Mike reams of information was Phil Hainer, sheeted or turbulated for best effect. Hammer, private eye!! the proprietor of Flite Rite Models and The G-6 is the airfoil used on the long time student of Goldberg airfoils. stately Sailplane . . . perhaps the model NOVEMBER MYSTERY MODEL Phil straightened me out quick. Sez he, referred to most frequently when the It was years ago, but I built this ship as "The G-5 was used on the Comet word “ glide" is mentioned. This airfoil is my first Jetex 150 model because the full Mercury and Zipper free flight designs. very similar to the G-5, but is a slight bit size patterns appeared in the magazine. The Sailplane used the G-6, and the thinner overall. The flat trailing edge was The name attached to it by the designer Cumulus and post-war Zipper used the allegedly a concession to easier build­ or the publisher was eminently forget­ G-610b." ing. Once again, the leading edge is table, but I named it Jet ExLax just to He goes on, "/ don’t know what airfoil intended to use false ribs. On the have some fancy tissue trim to put on the you printed in the July issue, but it wasn’t original, these ribs were spaced along wing. Once I conquered the frustrations the Sailplane (G-6) section. The G-6 was the leading edge at one-inch intervals. of getting those blankety-blank motors intended to be used only with false ribs Similarly, this section is thick by today’s to work somewhat consistently, I found . . . no turbufators or sheet leading edge. standards, but the payoff is a glide that that the Jet ExLax actually flew. If you It can be distinguished from the other has placed this model (the Sailplane) and know the name of the design and are the C oldberg sections because it has a this airfoil firmly into the legends of our first one to send it to Model Builder’s thicker front section and a flattened hobby. editorial offices, Bill N. will forward to trailing edge. In addition, it has a Incidentally, the Zipper and Sailplane you a nice prize in the form of a free rounded (almost double-ellipse) lead­ both used the wing airfoils in the stabi­ subscription to his and my favorite ing edge. The G-5 is thinner at the front lizer as well. I believe that modellers model magazine. and the trailing edge is not flat. The who are designing free flights cannot THE PANHANDLE — G-67Ob is thinner yet, and it is intended overlook the potential in these two NOVEMBER THREE-VIEW to be used with a sheet leading edge." sections, particularly when constructing Al Grell is one of those free flighters My conclusion: |ohn Malkin's book is ships that are apt to fly with the same who every active club should have. He is wrong. John lists the airfoils as the wing loadings as these two classics. skilfull and meticulous in what he does. Goldberg G-5 and the Zipper airfoil. PS: M alkin’s book also has an airfoil He volunteers to do many times his

Formation crash! Interesting crop of FAI power models grows in author's backyard. Front model is the FAIman V, front left is the Tom Cashman, of Federal Way, Washington, prepares to give his Olofsson Korla Plankton (M B plan), three Deja Vu models, right. Bob White inspired Wakefield an energetic send-off.

56 MODEL BUILDER Off she goes! Author sends his Deja Vu on its maiden flight. Turns out to be a good flier. Site is Harts Lake. share of the tasks, and in the Northwest, he and his wife, Dee, are well known for their hospitality at contestants. On top of all of this, he is a good gas model flier. Al served as my mentor and inspira­ tion when I first moved to Albany, Oregon 23 years ago. Much of my progress as a designer and flier came under his tutelage. It didn’t hurt that he had a farm of about 140 acres that could be flown on about 8 or 9 months a year. NOVEMBER MYSTERY MODEL It became a prime test site for the latest designs. overweight, so the Panhandle is prob­ weight with the correct areas. Mine is Several years ago, after talking over ably 2-3 ounces on the heavy side. powered by the Cox Conquest .15 the characteristics of good A Gas models, In my observations, this ship climbs mounted on a Tatone mount. The timer each of us went our ways to try our with the best of them . . . with a slight is a modified K-Mart as described in the respective hands at coming up with our right spiral in the 9-second engine run, August issue. Nice ship. Have you started own designs. Al took the route of and then a transition that actually gains yours yet? modifying a well-known and successful altitude. The right glide pattern is AMA MUSEUM ACCEPTS NFFS design, the Texan, by Ed Miller. bouyant thanks to the Ram Rod airfoils, MODELS OF THE YEAR The result is the Panhandle . . . so long tail moment, rearward C.G., and The Ultimate Dragmaster and the named to remind one of the Texas huge stab. Maverick 1/2A Model were both NFFS derivation. The changes are a longer tail The three-view as presented gives Model of the Year award winners. Both moment arm, a rear fin, the use of enough of the information to build the of these Tom Hutchinson designs have thinned (to 9%) Ram Rod airfoils, and model. It’s a good one. been accepted into the new AMA Model power is a Cox .15 Special . . . the last HUTCHINSON’S DEJA VU REVISITED Aeronautics Museum. of the lightweight T.D. style Cox engines. In the June issue of Model Builder 1983 NFFS MODELS OF THE YEAR The result is a model that has a very Free Flight, I casually mentioned that Speaking of Awards! The National rapid rate of climb (as the Cox has about someone ought to build the Deja Vu, as Free Flight Society has announced its twice the power of the K&B Greenhead Hutch didn’t have a chance to do so winners of the 1983 Models of the Year. .09 that powered Ed M iller’s original). All before he died. Since then, I have com­ These awards are made annually in other features of the Texan remain pleted my version of his ship. I can say conjunction with the presentation of the largely intact. As Al readily acknowl­ from experience that the model flies Symposium papers at the AMA Nation­ edges, he has a tendency to build a little well, and came out right on the proposed als. Winners are shown elsewhere.

Tail feathers of the Deja Vu. Photo shows Business end of the Deja Vu. Note K mart timer, engine and engine mount details. Kerr installation of Crocket VIT arm and use of brake and NFFS skid used. Olofsson style stab mount.

NOVEMBER 1983 57 4" BL TIP K C LO B " /4 1

MODEL BUILDER Three-quarter rear view of the author's Deja Vu. Copies of the Symposium Report, NFFS MEMBERSHIP including the above mentioned designs While I’m at it, f might as well plug are available from Fred Terzian, 4858 membership in the NFFS . . . the only Moorpark Ave.. San Jose, CA 95129. The organized voice for Free Flight in the cost is $10 and well worth the price. U.S. of A. Some contest operators give a reduced entry fee to NFFS members .. . NFFS 1983 MODELS OF THE YEAR AWARDS a good practice to imitate. Anyhow, if you are not a member, you should be. INTERNATIONAL CLASSES: Send $15 to Don Hughes,8383Zancanaro F1A Matt Cewain Pacer 14 Ct., Citrus Hts., CA 95610. He is the FIB Alain Landeau membership chairman. Besides making F1C Adreas Mecxner Delfin you a good guy, membership brings you ΑΜΑ POWER: a membership card, a set of NFFS decals, Small Roman Ramirez Cargo an excellent and high-class newsletter Large Hal Woods Summerwind 744 edited by Bob Meuser, and an opportu­ Ted Stalick is half-way through a launch Doug Galbreath nity to influence the direction of our HAND LAUNCHED GLIDER: in this photo. Scene is the Western FAI favorite hobby-sport. Phil Hainer Jr. Kwik Flip II Challenge. Model is Hatschek SkyScraper. Phil Hainer Sr. THE END INDOOR: Now, as you face the winter months, for the next outdoor season. How about Stan Chilton Sweet 16 EZB one thing should be clear . .. you pro­ building something that you can trim UNLIMITED RUBBER: crastinated your way through the best and fly? Try the Panhandle or the Deja Bob White Ulimited Unlimited outdoor flying months of the year, and if Vu or something. Just finish this issue of SCALE: you wait long enough, it's going to be Model Builder and go out into the shop Don Srull Santos Dumont spring again. You can participate in the . . . oh, it’s 10:30 already . . . well, there’s SPECIAL: indoor scene for the next six months, always tomorrow . . . or the next day. Ed Dolby EAI Rubber but you should also do more than plan Thermals!!! ·

NOVEMBER 1983 59 Speed action! Chris Sackett starts up Keith Loutecky's D Class ship. Ear protection is a must with ST .65. (M. Hazel photo.)

ally there w ill be no contests to attend. Here is a list of excuses for not attending contests that I have heard in the past, and my reaction to them. The weather isn't very good in that town . . . (It’s the same for everyone.) I d ie d . .. (Very good excuse, but you can only use it once.) I never flew in a contest before . . . (Everyone has to start somewhere. Come on out and have some good clean fun.) I was sick . . . (Clad I wasn’t sick. Hope you get well soon. Hope you weren't sick of being beaten.) I can't beat )oe Blow because he won the NATS in the event Ifly . . . (You never w ill either, if you don't at least try.) It’s too far away . . . (Fine, as long as you don't expect people from that town to come to your contest.) No one from that town came to our contest, so I won’t go to theirs . . . (If everyone thought that way, there would soon be no contests to attend.) I had to work . . . (Very good, glad I didn’t.) (Is this guy a professional contes­ tant? —mwh) I don’t like John Doe who’s in their club. . . (Go anyway. There w ill be lots of other people there.) By MIKE HAZEL You probably have heard or used PHOTOS BY THE AUTHOR some of these yourself. If you have some good ones, send them in so I can share them with the rest of the readers. I am sure we can come up with an appropriate prize for the best one. Next we rip off from the RAMS news­ letter, edited by Raymond LeFrancois, of • Having devoted the last column to and well in Omaha, Nebraska. Here are a Christianburg, Virginia. It sounds like contest results at one meet, it is time to couple of tidbits from his newsletter: they have had a flying site problem: take a look at what is going around in Murphy’s Law of Model Designs: "ft seems to me that the biggest ques­ other parts. First, I would like to thank Your buddies always think your designs tion is when are we (AMA) going to wise those who took some time to write and look like someone elses. up and make mufflers mandatory for offer comments. Whether you have Corollary to Murphy’s Law of Model each and every activity? We (RAMS) questions (make ’em easy!), comments, Design: All great designs are created by have already lost the best site we ever opinions, or what-have-you, keep those accident. . . and destroyed by the same had at Salem High School because of ex­ letters coming! Again I solicit your club method, (amen to that —mwh.) cessive noise (and everyone of us agreed newsletters. And here is Bob’s summary of excuses that it was excessive). Is the museum Bob Furr is the newsletter editor for not to attend contests: next, or Madisoni the Orbiting Eagles of Greater Omaha. The contest season has started. Sup­ Sure, this particular problem is R/C He writes to say that control line is alive port clubs holding contests, or eventu- related, but it would be folly to assume

Jerry Thomas' new experimental assymmetrical jet speed monster. Flying surfaces face inside for less drag. Model takes off on drop off dolly. Note that the control surface is on the wing . . . no elevator at all! (M. Hazel photo.)

60 MODEL BUILDER (fial il is nol our concern also. The fad is lhal all unmuffled model airplane en­ gines make noise that is loud enough and of a pilch that annoys the heck out of a lot of people. It isn’t music to every­ body. As it directly relates to us: I can't think of one single CL event that couldn’t be run just as well with mufflers, even the 1/2A stu ff (except fo r Jet speed! — mwh). The West Coast control line group (WAM) has been doing it now for years. They fly the same type of events that “ w e" do: speed, racing, combat, carrier, etc. They didn't kill the sport. They did something about our biggest problem, and they enjoy the benefits. . . more places to fly and the knowledge that they are not subject to being run off because of an unwholesome image. Let's face it, seldom are we much more welcome than a bunch of Hell’s Angels." There has been a lot of writing on this subject of noise control over the years. The problem no doubt becomes very real when YOU lose a place to fly your planes. In general, our R/C brethren lead the way in engine noise suppres­ how much of the flying activities are AMA sanctioned All Scale R/C and CL sion. Even there, I hear of problems with organized? The minority of the flying AAA Meet, Saturday and Sunday, O cto­ a number of so-called mufflers which do action is in competition, leaving the rest ber 1st and 2nd, at Kearney F ield, little more than direct the exhaust away of it to the sport flyer. A lot of sport flying Lexington, Kentucky.” from the engine. This is not to take away is within the regulated confines of club According to Ed’s information, there anything from the many fine units that rules, but a lot isn’t. That is where things will also be competition for CL precision are on the market. could be ruined for all by a few, and it aerobatics in addition to the scale flying. A number of years ago, I tried a certainly has happened before. There will also be a swap shop for the muffler on a .35-size sport plane. Would My personal feelings are that I wish we modelers, and manufacturers are in­ you believe the quieting effect was nil? I didn’t have to bother with muffler regu­ vited, too. If you see this in time, contact knew this to be a fact as the engine noise lations at all, and leave their use subject Lew McFarland, 3404 Keithshire Way, tone did not change noticeably when to local needs. There are several remote Lexington, KY 40503, or phone at (606) the muffler fell off during one flight. area flying sites where the noise just 223-2368, for more information. The way to circumvent the “ cheater” doesn't matter. But I do understand that Across the country on the following mufflers is to enforce decibel rating it isn’t so everywhere. It is too bad that weekend, there is another major annual regulations. I will be the first to admit we cannot count on all modelers to meet, or actually a double meet. On that I do not like a concept like this, exercise courtesy and common sense in October 8th, the “ Old Timers Fun Fly” however, being one who does not like regard to how our noisemakers affect will take place in Portland, Oregon. This to see things over-regulated. But if push the heathen public. Your thoughts and event will include Old Time Stunt, dis­ comes to shove, or in other words; no comments would be most welcome on plays, and demonstrations of genuine noise standards, no flying site; I guess it this subject. historical models. The contact for this is would be a matter of going with it, or ★ ★ ★ CL historian and Fireball enthusiast, quit. Frank Macy. You may reach him at 5200 A big concern with total enforcement Edward Bono writes in to tell us: “ The SE Jennings, Milwaukee, Oregon, or call is how will it be made effective? In an X-Cell team, sponsored by X-Cell organized activity, it may sound fine, but Models, will hold its second Annual Continued on page 77

1/8"—3/16" SQ. SPRUCE STOCK 1/16" SPRUCE 7 BALSA WING BLANK FIG. 1 AFTER SHAPING

TAPERED r o u n d

Jim Lee and his son, Todd, used a gyrocopter for balloon bust event. Bob Furr took this shot at the 11th annual meet in Omaha, Nebraska. Bob Furr is the newsletter editor for the Omaha Eagles.

NOVEMBER 1983 61 s * i

Control Line Combat is what it's all about at the Bladder Grabber. Here we see a C/L combat Jari Boles, Utah, went around testing wings model gliding in for a landing with its streamer intact. and stabs for contestants. This one failed. 1983 BLADDER GRABBER By RICH VON LOPEZ . . . Control Line Combat is alive and apparently quite well as evidenced by this report of the 1983 Bladder Grabber. With prizes worth $5,000.00, it's not hard to see why! (Whatta name!) Greg Hill flew this monoboom design in the Bladder Grabber. • Combat flyers are dedicated aircraft ago. It takes place in beautiful Seattle, and Jr., Matt Rodriguez, Max Boyd, Greg modelers. They are continually building Washington in July. The current prizes Hill, Myles Lawrence, Rich von Lopez, and upgrading their equipment. Repairs for this contest are $5,000 worth of and Dr. Chuck Rudner were the Califor­ never end, nor does the cleaning and Carver stereo components. That "bait” nians. Jim Womack and Jarl Boles drove assembly of engines. The rewards for all (as Duke Fox called it) is enough to draw over from Utah. Gene Pape and John this effort are skimpy, save tor one flyers from California, Michigan, Texas, Tompson came from Oregon. Pat Wilcox contest, the Bladder Crabber. Utah, Oregon, Washington, and from and Tom Fluker, Sr. and Jr. were the The Bladder Crabber is the brain child the neighboring country of Canada. Texans. Davis was the Canadian. The of that electronics genius, Bob Carver. This year, Carver invited Duke Fox and state of Washington was defended by Bob is the owner of the Carver Corpora­ Combat World Champion Tom Fluker, Howard Rush, Norm McFadden, Bob tion that produces high-tech stereo Jr., to the Bladder Grabber. Yes, he did Carver, W illie Naemura, Ed Byerly, Phil equipment. Not that stuff for the masses, pay for their airline tickets. Everyone Granderson, Richard Salter, R. Birch, G. but components for the real aficionado else brought their best equipment on Birch, M. McConnel and a couple of of exact musical reproduction. Bob their own. Steve Kott and Ed Bryzs came others whose names I did not get. There started the Bladder Grabber eight years from Detroit. Mike Petri, John Salvin,Sr. were 30 entries. Bob Carver invited all the flyers to a restaurant breakfast on Saturday morning. This was also the time to take care of the contest paper work. The stage was set and the weather was clear. On with the show. Carver drew the World Champ in the first match of the first round and put a

"W on't start, eh? You try spittin' on it yet?" Caption contest anyone? Willie Naemura holds model as Norm McFadden scrutinizes. Mike Petri had a good Saturday with a 4-0 Steve Kott finished 2nd . .. and it only cost Jim Womack and John Salvin, Jr, background. record. him six of these models.

62 MODEL BUILDER Jim Womack's C/L combat job. Note the rather expensive, but Bob Carver (left) presents Dr. Chuck Rudner with his winnings. Not effective. TWA engine (close-up of engine below). bad for flying model airplanes!

Close-up shot of Jim Womack’s rig. Note Rev- Duke Fox checks out one of those expensive Minor engine damage can result from head-on Up 9-6 prop, TWA engine, missing fuel line. Neamura models. Only $150, American! crashes. This one w ill never see action again. kill on him. No fluke! Four rounds were model as his six original models were flown on Saturday and only three flyers damaged. These top four were rewarded were clean at four wins and no losses. with enough stereo equipment to make Using a triple elimination format, a 4-0 the trip worthwhile. record is a real good place to be. Mike NOTES OF INTEREST Petri, Steve Kott, and John Salvin, Jr. Tom Fluker, Jr. had a model fly away were the ones with the hot handles. and land on the nearby beer warehouse. On Sunday, the top guns were being It took the fire department to get it knocked out. Granderson, McFadden, down. The fastest models were those of Carver, Pape, Rush, Hill, Lawrence, Rush, Lawrence and Carver. Greg Hill Fluker, Wilcox, Petri, and Salvin, Jr. all has the talent to win, but needs more fell away. Four flyers went into thesemi- uniform equipment. None of his models finals with records of 7-2. Kott, Bryzs, were the same. Bob Carver buys his Rudner, and von Lopez all had a chance. models from Willie Naemura for $150 a Teammates Kott and Bryzs had to fly copy, and let me tell you they are real against each other, as did teammates gems. “ Too beautiful to fly combat Rudner and von Lopez. Kott and Rudner w ith !" says Bob. The top four places went to foam models. This may be the were victorious and went to the finals. 1977 Junior Nationals Fast Combat Champ Rudner beat Kott who had to borrow a first contest that I have been to where is still at it. Matt Rodriquez, Clovis, Calif.

Tom Fluker hurt that one! It's all part of the game, though. Rich von Lopez' remote needle valve setup.

NOVEMBER 1983 63 plane, Molt Taylor’s Mini-Imp, Etrich Taube, and two ultralights. David also offers Grapenut, Walnut, and Bostonian Precision Tools plans . . . all at very low cost. A stamped pre-addressed envelope will bring you the complete list. LEAKY COVERING Taps, open end wrenches, hex nut driv­ After so many years of sealing our ers, Phillips and alien model covering materials to air-proof drivers, and screwdriv­ them, we may need to revise our think­ ers. The tools feature ing. Although boundary layer suction interchangeable or indi­ experiments are not new, it appears they vidual handles and Tuff- are now being examined more seriously, Tempered tips. Pack­ as illustrated in a recent McDonnel aged in convenient Douglas advert sent in by Cyrus Stow. molded plastic storage In an effort to improve the efficiency cases. Send 25 cents for complete size listing of airliners, perforated wing skins with and catalog. K & S En­ air being sucked through the hole to gineering, 691 7 W. 59th stop turbulence before it develops, are St., Chicago, Illinois being tested, and fuel consumption 60638. Telephone: 312/ reductions of up to 20 percent. But don't 586-8503. hold your breath in the meantime ... introduction into practical service may not be until the 1990s. TOTAL AVIATION In our article about the complete aviation display held at the French Orly airfield, a few issues ago, we noted how few airports these days seem to cater to attracting the general public as anything people and is looking to hire more. All but paying passengers. Henry Haffke RELIABLE ENGINES aircraft modelers would like to have a brought to our attention an airport in sponsor such as Bob Carver. Thanks! · AT M inville, New Jersey, that hosted a REASONABLE PRICES comprehensive show intended to / ------\ dramatize the magic of flight in all its Hannan...... Continued from page 55 Midwest Model is the source for: forms. Featured were demonstrations by both model and full-size airplanes, hot > IRVINE ENGINES FROM ENGLAND honor of the date, the 4th model to land • H.P. ENGINES FROM AUSTRIA air balloons, a helicopter, a glider, and would be declared the winner, and in ultralights. When first approached ' COMPLETE STOCK OF SPARE PARTS this case, that happened to be Warren about putting on such a display, Airport » COMPLETE SERVICE FACILITY Shipp's autogyro. Manager Lewis Finch thought it was “ a Dealer Inquires Invited______Winner of the main Bostonian cate­ good idea” , but after seeing the enthu­ gory was Charlie Yost’s all-balsa Boston siastic public response, he pronounced WRITE OR CALL FOR MORE INFORMATION Termite, which declared its own inde­ it “ a great idea.’ According to a quote MIDWEST MODEL pendence Day by flying out of sight. in the Atlantic City Press," A person who aijiiiiia*i THIS IS A NEW IDEA? knows nothing about planes can get a m BOX M M AOMCOVKLl A «0441 Florence Bakken sent us a handy-hint pretty good idea of what aeronautics is clipping from the July 5,1983 Woman’s all about.” There must be a message Day magazine. Illustrated were colorful here ... Is anyone listening? there were more foam models than model aircraft suspended slightly out of FLYERS wood. Foam kills were happening all the reach of grasping hands. The handy hint, A simpler title for an aviation movie time. That is when the string leader of from a lady in Texas, was that models would be difficult to imagine, yet this the streamer cuts through the foam, could be hung from the ceiling with one word says it all. If you are in the San goes back to the spar and snaps. It’s too fishing line to provide the illusion of Diego, California, or Washington, D.C. big an advantage to ignore. Womack flight, and protect them from inquisitive area in the near future, by all means try was using TWA engines. Greg Hill and fingers. We know this system of model to attend a showing of Flyers. The Bob Carver had Hoffelt engines. Both display was in use at least as long ago as Reuben H. Fleet Space Theatre in San the Hoffelt and TWA sell in the $150 to 1900, but wonder how old the idea really Diego and the Smithsonian National Air $200 range. Almost everyone else ran is? and Space Museum are each equipped Foxes. THE LEADING EDGE with the semi-hemispherical dome and We heard some interesting stories Jim Jones, who markets the good-old- equipment required to project this from Duke Fox about how he started in days type double-edge razor blades, unique motion picture. business with a partner (Arnold), and also sells backless single-edge blades, The emotional impact of the presen­ how his family mortgaged their home to which have been ground and honed to a tation is nearly overpowering at times, buy the business outright. double bevel. These are sharper than with breathtaking color photography, Tom Fluker, Sr. and Jr., Duke and I the usual blades and are available as marvelous sound, and total immersion were treated to a demonstration of follows: 100 blades: $6.50 plus 904 post­ in close-up, wrap-around aviation Bob’s Sonic Holography stereo system. It age; 24 blades: $1.60 plus 404 postage; 12 splendor. If that sounds to be excessive makes you feel as though you are in a blades: 8 O4 plus 204 postage. The ad­ praise, consider these scenes: assembl­ concert hall. dress is: Jim Jones, 36631 Ledgestone, ing a full-size Vought Corsair bent- The Flukers and I toured Seattle a bit, Mt. Clemens, Ml 48043. winger in a hanger that has a Tiger Moth had lunch at the Space Needle, took a PLENTY OF PEANUT PLANS suspended from its roof like a model; a monorail ride, and bought cherries at David Aronstein, 50 Pasture Lane, lovely lady mechanic; airborne se­ the Peoples Market at the wharf. We ate Poughkeepsie, NY 12603, has added quences of high-performance sailplanes a lot of cherries at 59Boeing Monomail, Evans Volks- polished splendor; Fokker Triplane and

64 MODEL BUILDER FRANCIS SMITH’S SHIP YARD BOX 118 NORWOOD. PA. 19074

(AS FEATURED IN MODEL BUILDER MAGAZINE) 95’ PATROL BOAT 85’ HARBOR TUG 48" LONG 10.5" BEAM Price $250.00 36" LONG 10.5" BEAM Price $225.00

All wood kits saun from aircraft quality birch plyuood, spruce and first-grade balsa...one piece plyuood Keel, plyuood Bulkheads, plyuood Main, middle and Bottom Decks... All plyuood Super­ structure.. .HARBOR TUG: Balsa planked; PATROL BOAT: Plyuood sheeted...P o r t h o l e s , Stanchions, Guard Rails, Rudders, Tiller Arms, Skegs, Struts, Stuffing Boxes, Drive Shafts, Propellers and Fittings are furnished...All Deck harduare is pre-cut, ready to assemble from detailed drauings. FOR FURTHER INFORMATION, SEND SASE INCLUDES SHIPPING U.S.A.

Nieuport 28 reproductions in low-level a Santos-Dumont No. 20 constructed In the special event for fighter planes, aerobatics a mid-air rescue of a fallen from a Sabel plan. Benno himself placed Emmanuel Fillon captured both first and wing walker; a deliberate crash-landing third with the rare pioneer Goupy No. 1. second awards, with a pair of Dornier of a Corsair on an aircraft carrier; and AND IN FRANCE.. . 335 “ pusher-pullers,” as shown in one of much more! If this sort of action doesn’t There have been some new Peanut our photographs. J.F. Frugoli’s Miles 20 quicken your pulse, you'd better change Scale rules tried, with the objective of finished third, while Lubomir Koutny’s hobbies.. . rendering static scale points more nearly Bell P-39, proxy-flown by Roger Aime CLUTTON CROSSES THE POND equal to duration scoring. This is a took fourth. Eric Clutton, well-known both as an difficult task, as confirmed by J.F. Frugoli, We applaud the spread of proxy­ aeromodeller and full-size aircraft who sent the static judging point-of- flying, truly a low-cost way to participate homebuilder in England, has recently view rules adopted by their committee, in our hobby on an international basis. moved to the U nited States. M od el and recommended to contest or­ MAGAZINE COLLECTORS Builder readers may be most familiar ganizers. “ But, as every Frenchman is an R.J. Twohy, of 24246 Crenshaw Blvd., with his charming lightplane FRED, individualist, I'll bet that everyone will No. 103, Torrance, CA 90505, specializes which was featured in Peanut form in use his own rules. The most important in used aviation magazines. Included are December, 1982. Eric is operating a small thing is to have contests.” titles such as Aero Digest, Popular business here, and among his first Frugoli furnished results of the annual Aviation, Air Trails, Aeromodeller and offerings are the English P.A.W. diesel Jacques Pouliquen Memorial Peanut Flying Aces. Why not send him a engines. These range in size from a tiny Concours, which was successful despite stamped, pre-addressed envelop for the .049 through a .29 displacement, and severe wind conditions. In first place was price list? And please tell ’em M odel they are available in either standard (for Jacques Delcroix's Pottier 100, proxy- Builder sent you! free flight or control line) or R/C form, flown by Gilles Chauveau. Second went SIGN-OFF TIME at reasonable prices. High performance to Emmanuel Fillon with a Fike (an From one of our favorite club news­ Schnuerle port versions of two sizes are unusual choice for him!), while J.F. letters, “ CROSSWINDS," edited by Russ also offered. Frugoli, himself, placed third, flying a Brown, of Ohio, we abstracted these Apart from model engines, Eric is Lacey M.10. Bob Peck’s Volksplane, definitions from the “ Glue Guru marketing a delightful little publication proxy-flown by Roger Aime finished Glossary: dealing with the making of propellers fifth, following by Bill Warner's Cessna, "Model Airplane Cement: An old- for homebuilt aircraft. See Eric’s classi­ proxied by Frugoli to sixth place. fashioned means of forming artificial fied advert in this issue for more Juniors (Cadets in France) also put on scabs or warts on fingers. However, information. a good showing, with the following unable to join fingers. AND SPEAKING OF FRED results: first place, Christophe Tardy "Instant Clue: A greatly improved Benno Sabel, of Germany, sent in the (Pottier 100); second place, Michel modern cement, able to join fingers results of a Peanut Scale contest con­ Tabas (Lacey M.10); third place, Chris­ easily. ducted there. The winner? None other tine Vial (M.S. 660); fourth place, Ro- "10-cent kit: A form of Peanut avail­ than Siegfried Gloeckner, with his FRED, dolphe Hennique (M.S. 660); and fifth able in the 1930s. In terms of flying as published in Model Builder. He place, Oliver Truche, flying a Luton ability, vastly overpriced. captured the second place spot too, with M inor. "C.D.: One who encourages others to

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL ‘EM MODEL BUILDER SENT YOU! 65 All three models were using O.S. ABC • 6 CHANNEL RECEIVER* 61 engines during this flying session. The • 4 MIDGET SERVOS (NES-1A) Tipo weighed8-1/2 lbs., the Dalotel 8-1/4 • 500 MAH SQ. BATT (SANYO) No v a k lbs., and the CAP 10-1/2 lbs. We have made and flown lighter examples of • AILERON EXTENSION ELECTRONICS each but the weights here are all very • M IN I SWITCH HARNESS acceptable. The fastest model is the T ipo . .. about 110 to 120 m.p.h. The next fastest is the Dalotel at 105+. The CAP has not been clocked, but I expect around 75 r.p.m. The Tipo has the ability to climb the fastest, but it relies on momentum to do the job. The Dalotel climbs easily but not as high as the Tipo. However, the aileron response is much stronger at very slow speeds in the vertical roll. The lighter wing loading really shows up here. The CAP is the most constant in speed 4 J and has the ability to pull up steadily to about the same altitude as the Tipo. The type of flying you wish to do will dictate which basic type of pattern machine you will like the best. But don’t write off the i ψ » ■■ Futaba/compatible plugs. Matches all modern TX. Plug-in crystal included. ability of the “ conventional” pattern I t r i l ■*'Specify Frequency. Add SZ50 UPS, Calif residents, add 6%. Allow 3-4 weeks lor checks Send 9’/ix lt ’/i SASE lor tree brochure types to fly the turn-around styles. 2709-C Orange Avenue, Santa Ana, CA 92707, (714) 549-3741 Properly set up, most current designs will do either. Style, which is an elusive thing to describe, will mean the most By chance, our friend Don Weitz when it comes to selection of the air­ O R v O I X stopped by and left us an M.K. 11-1/2x8 Number 2 Silent prop to test. This is a frame. If you are a newcomer to pattern very different prop design, having a lot Golden Falcon of tip pitch. The O.S. ran very smoothly flying and are working on the basic skills, and showed how much power it takes to keep it simple, light, easily repairable, tu rn this prop by h ittin g just 10,000 and above all, have a good flyer work r.p.m. again. Next we tried a 15 x 8 Zinger with you to note your errors (tactfully of prop and got 8300 r.p.m. Finally,a 15 x 10 course) and keep you from developing Zinger tested at 7800. bad flying habits. We must sign off for now. There is 4 Channel Now then, if you are used to hearing FIRST R/C 15,000 - 16,000 r.p.m. figures bandied wood to sand and foam to cut. Also, you Trainer have been reading long enough and about, these figures must seem puny. Not so, oh nitro breath, these figures someone else may need to use your Write for under the aforementioned conditions seat! · Details and SPECIAL OFFER are very good, and as I suggested earlier, ST. CROIX OF PARK FALLS. LTD. you should get better figures. Choppers .... Continued from page 43 P.O. Box 279N - Park Falls, Wl 54552 The big question: “ Will this engine fly a competitive pattern plane?" The big smash their models. answer is a definite YES, but the model more precisely than any other kit on the "E.T.: Movie about a trailing edge should not be smaller than 800 sq. inches market. (T.E.) installed backwards." or larger than 1000 sq. inches, or weigh In particular, some of the items that Ah well... · more than 11 pounds. I could be wrong, impressed me were: 1) The very thick but I expect most people will have their and easily removable cooling shroud; best luck staying within these param­ the best cooling system on the market, Pattern...... Continued from page 50 eters. I’m impressed enough to start and 2) The basic drive system with a designing a bird specifically intended to double-sided main gear, also three ing the engine to pop or sag badly as we maximize the performance curve. My bearings in the tailboom for the tail rotor passed the optimum setting. Instead, we guess is 925 sq. inches and 8 to 9 pounds drive. found the engine to be remarkably is a safe starting point. The main rotor head is nothing new, docile, in that >t sagged only mildly. Our The fact that the engine idled easily on although there has been a thrust bearing tachom eter said 9200 r.p.m . at max the 11-1/2 inch prop surprised me. I added to each blade holder. Other than setting. Not too bad. thought it needed more flywheel effect. the addition of other bearings through­ After a few more break-in cycles; Apparently the compression, which out the head, little has changed from the cool, restart, etc., the engine said 9500 controls ignition, is designed to be on basic Heli-Boy head. I hope this head on the same prop. The interesting thing the mild side. stays set-up better than the basic Heli- was that the acceleration from 1500 to In our photograph of the 1.2 engine, Boy head. When I had my Heli-Boy,there 9500 was extremely rapid. This lead us to you will notice another tiny engine. It’s was always a tendency for the bearing ponder as to whether or not we were the new Wankel O.S. We w on’t cover its blocks to shift slightly between the side using a propeller which ran the engine test till next month. It might whet your plates and upset coning angles. over its peak torque. Interestingly, the curiosity to know that the horsepower From the detailed photos, I think you 9500 r.p.m. figure is only 500 less than we rating on this engine is the same as the can fairly well'see the basic outlay and get from our 1.4 Gearbox engine (piped) 1.2 cubic inch four-cycle. The figures out arrangement of all the other major on the same prop. as equivalent to four horsepower per components. Next we ran a modified 14x8 p ro p . . . cubic inch. Interested? CHOPPER CHATTER INDEX same figure. Change to a 13 x 10 Zinger, Now on to the flying field. We in­ As most of you have gathered by now, we got 9200 r.p.m. This seemed about cluded pictures of the CAP 21, Dalotel I try to write on a topical subject as much right, so we tried a 13 x 8 Zinger and got 825, and the small 700-inch Tipo. These as possible from month to month. This 10,000 r.p.m. are arranged to show relative sizes. gives a base on which to build other

66 MODEL BUILDER

powered), Part 2. Mar '82: Kobe-Kiko Hughes 300 (glow Bring the MonoKote" classroom right to your own TV. .. with Top Flile's, powered), Part 1. one hour MonoKote I Video Tape. Feb ’82: Servo power and control From simple flat surfaces to fillets forces in helicopters. and hinges. Top Flite's video tape Jan '82: Straightening main and tail teaches you basic MonoKoting skills. rotor shafts. Learn right in your own home.. per­ Dec ’81: Why R/C helos crash. fect for club showings, too. Nov '81: Comparison of models to full n o w · • Purchase for only $39.95. size helicopters. • If rented, return within 30 days for Oct ’81: Rotor blade designs; Bell and $20.00 refund. Hiller systems. • VHS or BETA format available. Sept '81: '81 MACS show. session • Each order receives a valuable Mar '81: Philosophy of setting up ' \ coupon worth up to $75.60 off collective pitch. list price of 12 six foot rolls of Sept '80: Pilot for Kavan Jet Ranger; I Π MonoKote. vibration tips. Top Flite... helping you every step To close for this month I'd just like to of the way. re-emphasize to all of you how the heli­ MONOKOTE I Send check or money order for copter kits available are improving in $39.95 with name, full address and 1 ’ n and quality. The new ball bearing VIDEO choice of VHS or BETA format to: a ships' control response and touch are downright impressive. And the new TAPE helicopter radios allow you to use the TOP FLITE MODELS, INC. precision the helicopter itself is capable MonoKote I Video Tape Offer of providing. If you’re thinking about 1901 N Narragansett Ave purchasing your first R/C helicopter, Chicago, IL 60639 give it a try . .. become a hover lover.·

Electric...... Continued from page 33

MODEL IGNITION ENGINES S ACCESSORIES wrote to me with the question, "Could this be used for electrics?” At the time the article came out, the same question occurred to me, but then the usual rush of projects got in the way. Bill, though, included a sample of the connectors that P R ? ) f T S he had made following the article, and it looked like it should work. So, why not try it? I went to the local Radio Shack, 77 Products now has N G K ME-8 miniature spark plugs, and as usual, they did not stock the parts designed specifically for Model Ignition Engines. called for in the article (#276-1988 and Threads and Hex size same as Modern Glow Plugs price is $5.00 each, total #276-1980). However, it looked like the postage is $1.50 regardless of quantity. Will fit most original Ignition 40 pin header, #276-1540, and the 16 pin wire wrap socket #276-1994, would do Engines and all Modern Ignition Conversions. fine, so I got them. The 40 pin header CATALOG A V A IL A BL E. $?. OO was easy to convert to ten four-pin male plugs, just use a sturdy single edge razor (213) 329-0273 17119 SO. HARVARD BLVD., GARDENA, CA. 90247 blade to cutr the two rows apart, then cut these up into four-pin sections. The articles. However, if you haven’t been Feb ’83: Making pushrods; basic tank total cost per male plug was 13c! That's following Chopper Chatter, it becomes setups. cheap! By the way, I also tried using an frustrating to you when I refer back to a Jan ’83: Hiller paddles; swashplate X-acto razor saw to cut some of the certain month’s issue and let it go at that. deflection; head rigidity. sections on the header . . . don’t do it. To help everybody out, I feel it’s time Dec ’82: Detailed operation of Bell The saw cuts too much material away, to provide an index of the past 2-1/2 and Hiller control systems; gyroscopic the razor blade is the way to go. The 16- years of my Chopper Chatter articles. precession. pin wire wrap socket is the source for the Please contact the MB office for back Nov ’82: High altitude flying; trouble­ female plugs, and you have to use an X- issue availability. The month, year, and shooting vibration with Super Mantis; acto razor saw to cut the "floor” out that main topics are as follows, in reverse basic rotor heads. holds the two rows of sockets together. order, beginning with last month: Oct '82: Basics of helos; attitudes Then comes the tough part! Use the Oct '83: Aerodynamics from hover to necessary for flying helos; fixed vs. single edge razor blade to cut each forward flight; flapping and feathering. collective pitch. eight-pin socket row into two four-pin Sept ’83: GMP Competitor review; Sept '82: Quasi-governor for constant sockets. This takes a microscope eyeball Part 2. rotor RPM with an extra channel and and a steady hand, but I managed to do it Aug ’83: GMP Competitor review; servo. successfully on all of them, and came out Part 1. Aug ’82: Two articles: 1) ’82 MACS with eight female sockets for 20c apiece. July ’83: Kobe-Kiko Hughes 300, show; 2) Part 2 of Supermantis review. You may decide to sacrifice in favor of Koritz powered review. July ’82: Two articles: 1) Method of getting a three-hole and a four-hole June '83: Clutch shimming for proper balancing rotors; 2) Part 1 of Super­ socket (by cutting through one socket alignment; drive train setup. mantis review. hole) when you see how tight this cut is, May '83: Tail rotor theory and mixing. June '82: Intro and theory of balanc­ but you will still come out with at least Apr ’83: Circus Hobbies helicopter ing rotors. four female plugs at a reasonable price. I kits available. May '82: Helicopter contests; Back­ did the cut in four stages; a cut at the Mar '83: Tank setups; autorotation ground and philosophy. top, one at the bottom, and one on each principles. Apr '82: Kobe-Kiko Hughes 300 (glow side, then worked them towards each

68 MODEL BUILDER other until the job was done. The 8-pin #276-1988 socket would be much easier if you can find it. The rest is easy. Use two pins per wire 9 U-BRO as shown in the photos and you w ill have a very compact and inexpensive plug. BRASS PLATED DURA-COLLARS. 137 1/16' Clay mentioned that you can get gold Enough stock so that threads will not 138 3/32· plated sockets and headers from mail S o c k e t strip and can be re worked for many 139 1/8" H ead other uses. Sets include Allen Wrench 140 5/32· order catalogs, which would be the very 141 3/16' best way to go. I tested the sockets in a B o lt Available in sets of 4 $.80 per set complete wiring layout compared to the BALL WRENCH SET same layout with Deans connectors, and Fits 4 40 and 6 32 head Heavy duty the rpm on a six-cell 05 was identical for bolts Leads into any cap 243 - 7/32" both harnesses. This says that the plugs screw head horn any angle 3 3 /4 " blades 244 · 1/4" are well able to handle the current, and $1.00 - 2 per set. do not have losses due to resistance. I I No 132 S5.25 did manage to short out a plug, and it singed the male pins. Some cleanup with D U * B R 0 Tnep an(j true spring NICKEL PLATED SOLDER LINKS sandpaper restored the pins, and it K W I K - L IN K S steel links are ideal for Nickel plated links will not corrode and make an worked just fine after that. The gold any critical control linkage. attractive and easy to solder plated Deans connectors do not singe, connector for servo or control that is one of the advantages of gold No. 109 (2) S.75 horn. n o . 112 S.69 plating. However, the connectors that Available with 4-40 thread Available with 4-40 thread No 304 (2 )SI.00 No 305 SI 00 come with the 05 systems are not gold plated, and serve their purpose. On all SOCKET HEAD CAP SCREWS 8-32 NYLON non-gold connectors, you should in­ INSERT LOCK spect them from time to time to see if Size Qty. NUTS tney are building up an oxide coat (a grayish color) or have been singed (blackish color). That can build up resis­ tance, which will show up as heat (the plug will get hot) and loss of rpm. The loss in rpm is often not as mucn as you N o .329 would expect, about 200 rpm, but you 10 Per Package will definitely notice that the plug is $ I 00 SI 00 per package heating up, it can get so bad that it melts the insulation near the plug! The cure, of course, is a little sandpaper work. The Radio Shack female wire wrap sockets are not quite as heavily made as the Deans sockets, so you may find that they need occasional replacing or re­ MEW building, but at the price, this is no biggie. The male plugs do fit the Deans plugs, which is handy. On the general V4 SCALE subject of plugs, I replace the plugs in 4-

NOVEMBER 1983 WHEN CONTAC TING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 69 systems, it doesn't, so there is no penalty r for the safety of a fuse. If you have a good tach, try it, I think you will be STANDARD TRICYCLE GEAR ROM A IR convinced. FOR RETRACTS Speaking of fuses, there is a way that you can experience a power loss with STANOARD MAINS Reversible inboard or outboard cylinders them, and it is the same way that you can STANDARD TRICYCLE GEAR Includes Standard Mams with with connectors, that is, corrosion. I either firewall mounted or flat mounted Nose Gear have been in the habit of crimping the

F.A.I MAINS Cylinder outboard — Not Reversible Fits most 40 connections to the fuse holders (no size pattern sport ships solder), and this led to a problem in my Aqua Sport. Some water got into the FW 190-D9 MAINS With 3/ 1fr preformed wire connection, and it started to corrode. I 9CT ROTATION MAINS For P-40 Tomahawk or F4U Corsair didn't notice a power loss, but I did P-38 TRICYCLE GEAR With special straight back retracting notice that the insulation was starting to mams melt near the connection, and it felt T-28 TRICYCLE GEAR With special Nose Gear having a Γ really hot (almost like an electric stove!) higher retracting center bne when I touched it after a flight. So, I SHRIKE COMMANDER TRICYCLE GEAR Forward retracting redid the connection, and did a before Nose Gear with 90* Rotating Mams and after rpm. The loss due to the bad THE CHOICE OF CHAMPIONS! connection wasonly 200rpm! That'ssur- HEAVY 3/18 STRUTS available on all gear — special order Available from your local dealer or order direct. only* 1 prising, considering the damage the heat did to the insulation. It does show that we actually lose less to resistance in ROM AIR-CHOICE OF CHAMPIONS the wiring than we might think. However, the incident made me think H H u n rfå ) RHOM PRODUCTS MANUFACTURING COOP. more about how I do the connections to 924 65th Street, Dept. C, Brooklyn, New York 1 1219 the fuse, and I now solder them all. M A Actually, the accident was sort of lucky, because it made me think up a really minute” was his statement that fusing is simple way of soldering the fuse holders. PEANUT SCALE MODELS Kit. $s.95 Λ a no-no! Peter says that anyone should Not only is it easy, but it takes less room, -p / ZERO MILES M-18 J PIETENPOL DRUINE be able to turn off the motor before the which is always a plus in 05 planes. All PIPER CUB COUGAR plane hits the ground, so a fuse isn’t you do is heat up the fuse holder back ANDRESON GIPSY MOTH LACEY M-10 GANAGOBIE necessary. Further, according to Peter, with a 25-watt iron (or more), then put a the fuse uses up power, which in a coat of solder on the back of the holder. Rubber Powered SPORT MODELS contest is critical. The SEAM newsletter Then solder the wire to the back of the BABY ACE $6.49 ONE NITE 28 $6.95 criticized Peter on grounds of safety, holder, and clip off the shank on the ONE NITE 16 $5.95 and I agree. I will have to count myself in holder for a neat and compact installa­ PRAIRIE BIRD · STHINGLESS $4.95 that great group of hackers whocouldn’t tion. The photos show the story. Try it, I KIT $5.95 PECK R.O.G. $1.95 get tne motor turned off no matter how think you’ll like it! BLIM PS CONTROLLED much time I had! I’ve proved this to my Till next time . . . fly electrics, the best 11 and 13 FOOT LONG.KITS OR dissatisfaction several times, and will. connection to fun! · READY TO FLY. NOW IN THREE COLORS GRAY. ORANGE and I’m sure prove it more times in the YELLOW. LOW PRICES future. The consequences for me on ^ NEW! CATALOG No. 25 - $150 these occasions before I started using Dear Jake...... Continued from page 6 Peck-Polymers Τ (Ε« * ΐ Γ fuses were burned up motors, burned 8 0 X 2498 -MB LA MESA. CA 92041 up batteries, and in one accident, a was. I’m really afraid that I'm losing my burned up plane! In one goof up, I husband. How can I win him back? One look, and I agreed. At $1.85 for a burned up a motor in the car when it got —Neglected in New Orleans package of six feet of red and six feet of turned on accidentally. That really hurt, Dear Neglected: black, the price is right, and the wire is it was the only plane I had with me, and I Wrap yourself in transparent Mono- absolutely beautiful. The outside diam­ had flown from Washington to Califor­ kote, splash a little Cox Blue Label under eter is slightly less than the “ extension nia to fly it. Needless to say, I did not fly. each ear, then lie down and wait for him cord” wire I have been using, but it The consequence to spectators could be on his workbench. If that doesn't work, packs a lot more wire inside. My eyeball even more serious, a motor that will not then he's legally dead, and you might as estimate is that there is at least twice the turn off will result in the very least a trip well collect on his insurance. number of strands compared to zip to the emergency room to get sewn up, —Jake cord, so less resistance. It is also ex­ and at worst sucn things as loss of eye­ ★ ★ ★ tremely flexible, like a "wet noodle". sight. Since I have started fusing, I have Dear lake: This is just the thing for my installations; not burned up even one motor, my What's that derivation of the word it takes less room, is easier to tuck away, batteries stay healthy, and I feel a lot 'p ilo l'f and causes less power loss, so a winner more secure about the safety of the —Curious in Kansas City on all counts. I recommend the catalog people around me. I just can't agree Dear Curious: that Wilshire offers too, at $2 it is a real with Peter. It comes from a Latin word meaning to "wish book” of all the European (and As for the fuse using up power, the arrange your airplane in a heap. US) electric goodies. only way to find that out is to try running —Jake Speaking of Europe, a couple of a motor with and without a fuse to see ★ ★ ★ columns back, I mentioned the Ampere what the rpm ’s are. I did this with an LT50 Dear lake: Flyer, the European newsletter edited by motor and a six-cell pack, and there was I don't have a problem. I just wanted Peter Blommaart ($20 a year, credit card no difference at all that I could see on to thank you for making your advice OK, Rue Wauters 28, B 6200 Gosselies, the tachometer. The tach is the Accu- available to us modelers. Keep up the Belgium). The Ampere Flyer is the way to Tach, which is an LCD digital, and shows good work! keep up on both technical and sport rpm down to the tenths place. Now, in —Grateful in Georgia information in Europe, but Peter cer­ European contests, they draw up to 30 Dear Grateful: tainly does have his opinions! The “ hot amperes on packs up to 24 cells, so it may Try sealing your aileron and elevator one” that really made me say “wait a show up there, but in our ordinary 05 hinge gaps with clear mylar tape. That

70 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! MODEL BUILDER Kobe Kiko. A Revolution in RC Helicopter Simplicity.

Exclusive Ftybar paddle design Pre-assembled, polished alloy (pat· Pencl·)· collective Bell/Hiller head. * * \

The Kobe Kiko HughesiGlo (above) and ignition- ■ powered Hughes Scale set new standards in RC New rotor blade profile and helicopter reliability. covering.

Full ball-bearing T h e Kobe Kiko Hughes 300's are rotor and drive train. designed to be simple. Simple to assemble (semi "knock­ down” kit). Shaft-driven tail rotor. Simple to tune. Simple to maintain. High-efficiency gear train and material. And the Kobe Kiko helicopters still offer the special excitement, action and chal­ lenge only RC choppers can provide. A Two Kobe Kiko models are now a va m able; the popular and agile Hughes 300/ Glo and the unique, Kioritz-powered Hughes 300/Scale. Both feature assembled, collective Bell/Hiller head, first-rate hardware, exclu-: sive paddle and blade design and excel­ lent, easy-to-follow instruction manuals, i Hover on over to your RC specialist. · or write to us direct to find out how easily you could be flying one of Kobe Kiko's models of simplicity, a *

Hughes 300iScale specifications: Engine: 21.2cc Kioritz Echo 20/ignition Output: 1.2HP Carburetion: Diaphragm Fuel capacity: 6.7 oz. (.5 liter) Weight: 13 lbs.

CALIFORNIA U.S. distributor Post Office Box 1695 .M ODEL IM PORTS Garden Grove. CA 92642 R/C HELICOPTER HOT LINE (714) 531-8404 Kobe Kiko THE BEGIN-AIR TRAINER Wing Span: 54" Wing Area. 540 Sq. In. Weight: 3'/j lbs. Engine: H.B .25 No. Channels: 3 or 4 ri'1 eA ^ Flat bottom airfoil for easy stable flight. BUZZ WALTZ R/C DESIGNS 255 North El Clelo Suite 476, Airport Park Plaza VISA Palm Springs, CA 92262-6914

DIRECT SALES ONLY

BEGIN/AIR FLOAT KIT $26.95 & $2.50 handling BEGIN/AIR kit & H.B .25 Engine combo $81.95 & $2.50 Handling Available in Canada through WINDMODEL, P.O. Box 23142, Vancouver, AMF. B.C. V7B1V6 Write for Addl. Info

(Note: the trailing edge of the rear wing Flying Flea . . .Continued from page 26 is installed upside down.) Now we add HB-ENGINES the ribs out to the wing tip. Put the last Made m W Germany Power through Precision Soak the outsides of the fuselage be­ one in first, Hot Stuff the precut leading tween D and the tailpost with water edge and trailing edge pieces to it, then H.B. ENGINE ACCESSORIES sprayed from an old Windex bottle. install the rest of the ribs. Believe me, it Now carefully pull the sides together sounds a lot more difficult than it is! Add HB-ENGINES and Hot Stuff “ B” in place. Epoxy former the wing tips, and a couple of blanks you Made m W Germany “ C " in place, taking care to get the angle will later sand to the tip rib shape. Pick Power through Precision correct. Next comes “ A” , again epoxied the wing off the board and add the H.B. ENGINE ACCESSORIES and carefully aligned. Hot Stuff the balsa 1/8 X 1/8 rear spar. This is a soft, one- block front deck on and carve it to piece spar, bent into place. Epoxy the HB-ENGINES shape. spruce hold-downs and plywood plates Made m W Germany The Perfect No. 13 tank is modified as at the locations shown for the wing you Power through Precision shown and installed with wood screws. If are working on. Sand the leading edges WRITE FOR FREE COLOR CATALOG you can find some solder lugs, these can round, and get ready to install them on Distributed in the U.S.A. by: be used instead of brass strips for the fuselage. BAVARIAN PRECISION PRODUCTS CO. mounting. Hot Stuff A-1 in place. Install INSTALLING THE WINGS P.O. Box 6. 22 Eokt Avenue · New Conoon, Connecticut 06840 the blind nuts for your engine mount, Carefully square the rear wing on the and build a box under the engine to should do the trick. fuselage. M ount it with two screws at prevent fuel from getting inside the the front spar, and one at the rear spar. —Jake fuselage. ★ ★ ★ Bind the 1/8 brass tube to the front Cut the nose pieces to shape noting cabane assembly. Run a 36 inch piece of Dear Jake: the grain direction and Hot Stuff them in 3/32 music wire through the tube and I know you like to kid around a lot, but place. If you haven’t already done so, carefully align it to the rear wing before I’ve got a legitimate question, and I install the tailpost, rear wing hold­ you solder the parts together. M ount would really appreciate it if you could downs, and the sprucecockpitstiffeners. the front wing with sheet metal screws give me a legitimate answer. How do Plank the top and bottom with 1/16 and confirm that you did a good job. balsa, applied cross-grain. The nose is you design the landing gear for a new RADIO INSTALLATION planked with 1/32 ply as it takes a beat­ airplane. Build up and solder the joystick ing. —Sincere in Seattle assembly. Remember, you must solder You can clamp the forward part of the Dear Sincere, the parts after you slide the tube through cabane assembly to the top of "A ” , but With the airplane in an upright posi­ the fuselage! Take care to get the two don’t solder it to the other cabane strut tion, the landing gear should extend all outside arms even. Route the pushrods until we align the wings. You can now the way from the bottom of the airplane for the throttle and rudder. Connect the sand the fuselage smooth, slip the to the ground. elevator pushrod to the joystick. Mount wheels on, and set it aside. —Jake the control horns to the front wing and RUDDER ★ ★ ★ You can build up the rudder if you install the wing. Hook up the pushrods Dear Jake: like, using a laminated outline, or do as I from the joystick to the wing and try the Very funny, but you know that’s not did and cut it from 1/8 light balsa. The controls. Remember, we don’t want the what I meant. What I want to know is twin tailwheels come from old Comet wing to go too far up, but a little more how do you locate the landing gear on a kits. Solder the assembly as shown and down movement relative to the trailing new design? attach it to the rudder with Hot Stuff. A edge won't hurt. By drilling a hole in —Still Sincere in Seattle piece of nylon reinforcing tape Hot your servo control wheel as shown in the Stuffed over the installation will make it sketch more "up” than “ down” is Dear Still Sincere: assured. Turn the airplane upside down and much stronger. WINGS COVERING look for those little wire things with the As both wings are built almost alike, I used a plastic film. Whatever you use, wheels on them. That's the landing gear. we will cover building them together. remember to keep the tail light. The real —Jake First, make templates and cut out all the airplane was silver overall with black ribs, noting the rear wing rib is different. markings. Now, build both spars flat on the board. ASSEMBLY (Editor's note: Send your questions to When dry, sand the main spar up in Put a drop of Hot Stuff in each wing " Dear Jake’’ care of Model Builder position over the plane and install the mounting hole before you install the magazine, P.O. Box 70335, Costa Mesa, ribs in the center section. Follow with wings for the last time. I used a living CA 92627.) the leading edge and trailing edge. hinge for the rudder on my Flea and Hot

72 MODEL BUILDER Stuffed it in place. Make up a cockpit cover from 1/32 plywood. Mount a two inch scale pilot to it and hold the cover MODEL BUILDERS SUPPLIES in place with wood screws. Bolt the engine in place, hook up the rudder, and your Flea is ready to fly! FLYING 3 First, get the center of gravity correct! a c PLYWOOD COVERING SUPPLIES Most of the problems with this concept take place when people attempt to fly FIBERGLASS MICRO X-ACTO with an aft C.G., DON’T TRY ITU! With KEVLAR FILLERS DREMEL the front wing incidence set as the plan GRAPHITE SAFETY EQUIPMENT STANLEY indicates, and the C.G. correct, we must now work towards getting the engine to idle really well. If you don’t, you will miss " ' V i half the fun of flying your Flea. All that remains is to run the thing around the ground until you get up the nerve to let it fly. Once you do, you will TOOLS find it does indeed fly very well. You might have to add some down thrust if SUPPLIES MAY BE PURCHASED AT WAREHOUSE LOCATED AT 201 WEST TRUSLOW AVENUE. FULLERTON. CALIFORNIA MONDAY TO FRIDAY 8:30 A M - 4 30 P M your Flea pitches up when you apply COMPLETE MAIL ORDER SERVICE - INCLUDING OVERSEAS SHIPMENTS ower. If your Flea balances correctly, Cut refuses to leave the ground, you REQUEST OUR FREE MODEL BUILDERS CATALOG have too much negative incidence in the front wing. If it leaps into the air and AIRCRAFT SPRUCE & SPECIALTY CO. stops, you have too much positive inci­ PO BOX 424 · FULLERTON. CALIFORNIA 92632 · (714) 870-7551 dence. Don’t worry about stalls, just turn FIRST IN SPRUCE - Second to None In Building Supplloå out of them. You will soon find out that slow flight is about the slowest flight you have ever seen! Where can winch line be purchased? You can now enjoy flying the most "Anything else that you think might Schlueter Free misunderstood flying machine in his­ be of help to us amateurs would be tory! Take heed, you might find "Flea appreciated. Thank you. Bill." Flight Models Flight" as addictive as I did. To tell you Let me begin to answer you, Robert, 3508 Poinsettia Ave the truth, I’m now building a slightly by saying that I do not consider myself to Manhattan Beach, Ca. 90266 larger Flying Flea. Would you believe be an “ expert” on winch design. I've FULL-SIZE? Ah, but that's another seen a lot of winches in my eight yearsof story! · flying R/C gliders, but by no means have I seen them all, nor have I seen all com­ binations of motors and batteries used in Soaring...... Continued from page 30 this application. In this case, I’ve never even seen the type of motor you’ve You can get a Leisure motor at your described. If its purpose is to start small hobby shop or directly from Leisure. The four-stroke lawnmower engines, I can’t 8LACK BULLET Graupner folder is available through imagine that it will be sufficient for your PARTIAL KITS (plans & printed wood) needs .. . unless all you fly is lightweight PACIFIC ACE o r BLACK B U LLE T 2 0 ·. · J 2 5 - 3 0 'j M 7 0 - Wilshire Model Center. Both addresses 4 0 :> 6. 6 5 -A D D J2 .0 0 SHIPPING FDR EACH t 1 0 3 are in the appropriate ads in this issue. "floater-type” gliders. The problem may KIT O R D E R -C A RES. ADO 6 ·/ , TAX Q & A FORUM not just be the lack of torque, but also in Robert F. Hilton writes from Shelby, the lack of line speed (or horsepower). and controllably. Remember, you can North Carolina: It’s one thing to be able to turn over a 10 always pulse the winch pedal if you think "I am, you might say, an old tim er in or 11 hp lawnmower engine at 60 rpm the winch is pulling too hard, but you this model building hobby of ours (40 (I’m only guessing at the crankingspeed can’t get more power out of a winch years, plus), but it has been an on-again, here), but it is quite another thing to get that’s already giving you its all! off-again type of thing for me. I have the same motor to handle (let’s say) half If your reason for wanting a "sm all” gotten really turned on with the two- the torque at four times the speed (or winch is one of physical limitations, then meter class sailplane.. . more). When combined with a small 12- you are going to have to go this route or " . . . I have only launched a sailplane volt battery as you describe, the voltage buy a winch such as the Fab-Tek winch from a hi-start, or actually an Up-Start drop from the load you will be placing which is small and fairly light. The only (Craft-Air), but the project I would like on it will probably further weaken the alternative you have is to build a "n o r­ to do is build a small winch launch sys­ system. It could very well work, but not mal-size” winch like I described above tem. Bill, I have never even seen a winch for all two-meters in all conditions is my and make a cart with wheels for it. At except in pictures, but I think a small one bet. most, the winch motor and frame will for two-meters only would be great. If I were you, I would get a long-shaft weigh 40 pounds. The battery will weigh "Here is what I would like to do. I Ford starter motor (part number 3110 at between 40 and 60 pounds depending would really appreciate your comments your local auto parts store), and a six-volt on its capacity. (My 12-volt, 92-amp- and answers. The winch motor would be car or marine battery of 50 amp-hours hour, deep cycle marine battery weighs of the type used to start 10 and 11 horse­ capacity or more. This will give you the 54 pounds.) power riding lawnmowers. I understand basis for a winch that will be able to If you are in the market for a ready-to- these are high torque starters. They are launch not only your two-meter sail­ fly winch, the Davey Systems Corpora­ 12-volt, and would use a good, high- planes, but any other plane you may tion Winch is a good one. It’s called the amp motorcycle battery. Do you think it design or buy in the future. This m otor/ Pow’rtow. I refer you to my review of would work? What size reel should I battery combination, in conjunction this product in last month's Model use? What size and strength line should with a drum of about four inches in hub Builder for further info. be used? What length line should be diameter and four inches in flange As for the remaining questions ... I used? How far away from the winch separation, will give you a winch that will would say that you probably need 1500 should the line guide or ring be placed? launch your floaters safely, yet firmly feet of line at most. This amount should

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS. TELL ’EM MODEL BUILDER SENT YOU! 73 LCCtrO hf I B A o( Gvumuf Power systems in stock for Lectro or similar sailplanes: All balsa, pre-built & sanded, ready for finish — the easy way to • Astro 05 Sport, 7 cells get into electric! Just join wings, • Leisure Pattern 05, 7 cells finish & install motor/radio — and • Geist 30/7 or 30/8, 7 or 8 cells outstanding flyer! Specs: 2 meter • Keller 20/7, 7 cells $195.00 span · 3 channel (rud., elev., • Graupner Jumbo 550, motor) · for 7-10 cell systems. 8-10 cells

NEW! Sanyo Red - “Cutoff” cells - 800ma in a 1 oz. package about the size of AA wilshire model center cells! Latest technology — lightens wing 3006 Wilshire Blvd. · Santa Monica, CA loading for sport or competition 90403 · Phone (213) 828-9362 New Wilshire Catalogs! RC Sailplane and Electric Power specialists for the U.S.A. High Tech Sailplanes $2.50 Electric flight systems Hours 10-5:30 Mon.-Fri. 10-5 Sat. Closed Sun numbers indicate that the Clark Y is very tors alike were able to concentrate on respectable compared to modern sec­ each flight from take-off to landing. tions. Dieter Althaus has done extensive The first round of flying began around research on several sections which 5 P.M. Friday evening, and was com­ modelers have used over the years, and pleted well before dusk. The most un­ his findings have been published in a fortunate event of the first round was book entitled. Profilpolaren fur den the crash of Sepp Uiberlacher’s gor­ Modellflug. I use his findings in this geous Mosquito bomber. The model column for your enlightenment. Keep in deservedly received the top static score mind, however, that wind tunnel testing Nick Ziroli’s F4U “ CORSAIR" *I of the FAI event, and was the same A memorable WW-tl Navy earner Fighter it * a superb flyer* is still not ‘‘real w orld” data . . . if may be model flown by Sepp to 4th place in F4at For 2 to 4 Cu. In. size Engines very close, and certainly a lot better than the 1982 Scale World Championships in GIANT R/C SCALE PLAN DESIGNS "theoretical” data, b u t. . . the air you fly Reno. The Mossie was lost on takeoff as AT-6 TEXAN" 2 .4 * = 1 1 0 1 ' Spon $2 7.00 p.p. U.S.A. through may be gusty and very turbulent FOKKER DR-1 2 .7 " = 1 63 T r ip · S25.00 p.p. U.S.A. it unexplainably rolled over into the F8F BEARCAT" 2 % " = 1 86" Spon $2 7.00 p.p. U.S.A. one day and less noticeably so the next, CURTISS "P-40" 2 % ' = 1 9 4 ' Spon $2 7 .0 0 p .p . U .S .A runway from about five feet of altitude. V/,’ however, it will always be active in some F4U CORSAIR = 1 93 " Spon $2 7.00 p.p. U.S.A. This was the only real casualty of the Fiberglass Cowlings & Canopies are available also Send a way. Therefore, turbulence-free, stamp for detailed brochures on our Giant Scale Accessories entire competition, but there were (Our Plane are sent Postpaid within the U.S.A I “ laminar-flow” wind tunnels can only some other interesting moments. The NICK ZIROLI 29 Edgor Drivo, Smithtown, N.Y. 11787 give us data that approximates the real wings on Clyde Halford’s big Bucker cover the largest field in your area, yet world. For use in comparison, this data is Jungmeister were seen to flutter like a not be so long that if it were all deployed most useful against other similar data for hum mingbird’s when his wing struts it would be excessively heavy for the other airfoils. came loose! To Clyde’s credit, he landed glider to lift off the ground. I would use a The Clark Y should be an excellent it safely, to the applause of all present. braided nylon line of at least 110-pound choice for a small to medium-sized Three more rounds of flying were test. RLF Products, Route 3, Box 360, thermal glider. It has a very good drag completed on Saturday, starting at Paoii, IN 47454 is a good source of this bucket at low Reynolds numbers which 9 A.M. and again flying till dusk. Skip line. They carry braided nylon in 93,118, is important to "floater-type" designs. Mast quickly established a firm grasp on 153, and 180-pound test. You would do Give it a try ... it certainly has been first place in FAI with his C-130, com­ well to ask for their catalog as it contains proven over the years! bining a fine static score with an unbeat­ such things as winch drums, solenoids, F3B WORLD CHAMPS able 634.9 flight. Skip’s combination of motors, and parachutes for do-it-your­ As I write this on the last day of July, four engines and retracts gave him a 30% selfers. 1983, I am all packed and ready to fly to complexity bonus, and his solid flying I don't use line quides for my winch. If England to witness the fourth world performance made it readily apparent you are careful about lining up your champs in York. If I get back in time to that no one else could come close to winch and the turnaround, line guides write up a report, you may find it in this him. aren’t needed. However, they don’t add issue. If not, stay tuned for the Decem­ The Stand Off competition in the any significant line drag, and they might ber issue! · second round was nip and tuck all day come in handy if you can’t see the turn­ long, and no one seemed to have an around to get things lined up properly. MAAC Nats... Continued from page 35 edge over anyone else at this point in the In the latter case, I would think that it competition. The static scores were should be placed about 15 feet away Mother Nature smiled on the three close, so it was mainly a flying contest. from the winch drum. days of flying competition, with hot, Pete Waters provided the spectators AIRFOIL OF THE MONTH: sunny days and relatively good wind with some excitement when his Sig CLARK Y conditions. With only 15 fliers in Stand Smith Miniplane stuck at full throttle. The Clark Y is probably the most Off and five in FAI, one flight line was all Pete flew round and round waiting for famous of all airfoils. It has been around that was necessary for everyone to get in the fuel to run dry, but his patience for over 40 yers (at least) and has been their six rounds. It resulted in relaxed finally ran thin, and he made an interest­ used on Old Timers and modern designs flying for the competitors, not having to ing full-bore landing, shedding miscel­ with equal success. Recent laminar flow be concerned about a mid-air from laneous parts from the planeas it skidded wind tunnel tests at model-size Reynolds another flight line, and fliers and specta­ across the asphalt runway!

74 WHEN CONI ACTING ADVERTISERS. TELE ’EM MODE! BUILDER SENT YOU! MODEL BUILDER One Good ENGINE Leads to ANOTHER... and ΑΝΓ ...and ANOTHER... and that's the way it's always been K&B.

ACTUAL SIZE K&B Ucc INBOARD

Whenever we undertake the development of a new engine we invariably come up with new innovations and refinements that we later incorporate in our other engines to update and continually improve them . . . no wonder K&B engines lead the field!

Our new K&B 11cc (.67) Marine Inboard is a case in point. Other features include: Latest innovations include: • ABC Cylinder and Piston • New Carburetor — unique needle valve tension nut • K&B's own Super Ball Bearings holds adjustment • Water-Cooled Head • Carburetor secured by new double-lock Draw Bar — • K&B's Quintuple Porting — the first and original insures permanent hold 5 port engine design • Conrod — machined from high tensile strength • Collet Cable Drive Nut aluminum stock.— bushed at both ends • Brass Balanced Flywheel (standard) — aluminum • Machined Steel Rotor Disc — hard chromed face flywheel also available This new K&B 11cc engine has been tested on the water • Crankcase and Front End — one integral unit by some of the top modelers in the boat racing field. The results immediately created a demand by those • Water-cooled Exhaust Flange who tested them as well as those who witnessed their • Interchangeable Venturies performance.

Now you can have the new, powerful, and dependable K&B 11cc engine powering your favorite hull. M F G . Inc. SEE IT TODAY at your FAVORITE HOBBY SHOP 12152 WOODRUFF AVENUE, DOWNEY, CA 90241 realistic flying Tiger Moth. Powered by a Quadra, Bud’s Moth garnered the top li static score with a 113.56. As the last two rounds progressed, • k ir k ir fliers were checking the standings board r WO IFF-PAK **** Síniáe after each flight, as this ball game wasn’t DESIGNED FOR over until the bottom of the ninth! Try as SPORT & FUN FLY they might, no one was able to top Mast’s total, and he made it a clean sweep, winning both the FAI and Cana­ I ^ I dian Stand O ff events. Second place in FAI and Stand O ff was also a clean sweep for Cliff Tacie, taking both spots with his Spezio and Cub. Steve Gray put it all to­ gether in the 6th round with another I I 107.9 flight and slid up to 3rd place in Stand Off, with Don Paquette 4th and Bud Barkley 5th. SPECIFICATIONS W ing A re a .. . . 540 so. in. Everyone present seemed to enjoy Span...... 60” themselves over the three days, and I’m Lenoth...... 43 " W eight...... 3-454 lbs. sure most will be back at the next ^ » ' ne...... Deluxe K it $64.95 Centralia Nats. Of particular interest during the competition were: young Don Round, of Sarnia, Ontario, flying his VISA/MASTERCARD lemco Corsair in his first Nats and 4517 M orning W ind Place putting in a solid performance; Ray I R8dl° ...... 3 4 channel Spinner, Fuel Tank, Fuel Ft. Wayne, IN 46804 I FEATURES Line, Pushrods, Control (2191 432-4324 after 6:00 p.i Gareau of Montreal, trying as hard as he • Machined Balsa & Horns, Hinges, Clevises, could to wipe the landing gear off his Plywood Couplers, Hardware. •Positive Positioning Norseman Mark "V” ; Grahm Ireland’s _ Construction Basic K it Don $57.95 Paquette, of Ottawa, was still in scratch built Fokker “ Super Universal’’ B »Semi Symmetrical Airfoil Spinner, Hardware.contention with his 10-year-old Sig mailplane, built and flown especially for Liberty Sport biplane, combining a good a Canadian documentary film; the dis­ & static with sizzling flight score of 107 in tinctive “burping" sound on idle of the 4th round. Ψ Doug Pinhey’s SE-5A, supposedly cre­ $33.98 A B S P A C E R A real crowd pleaser was Steve Cray, ated by using an old servo with a worn of Kitchner, Ontario, with his scratch pot in the low throttle position . . . NOSTALGIA built DHC-5 Buffalo. Powered by twin unique! _ / G A S M O D E L O.S. 40’s, it was a thrill to see Steve FROM THE 5 0’s At the awards ceremony performed at perform STOL landings, pointing the the Headquarters building, a special * T nose down at a 60 degree angle from note of appreciation was expressed by about 50 feet of altitude and leveling out /ί£βΕΙίί \ MANUFACTURERS OF all present to Contest Director Tom f i r ^ \ RUBBER,GLIDER.AND just inches above the runway to a Savage, who put together a well orga­ smoothly flared landing. Even the aile­ I GAS FREE FLIGHT KITS nized, safe, and smoothly run low \ (/) J DISTRIBUTOR AND rons are deployed as flaps during these pressure event with only 10daysadvance \ o , . I n '/ OEALER INQUIRIES exciting landings! notice! Tom is typical of the hospitable x ^ r o i 4 > / INVITED. Right on Steve’s heels was Ottawa's and professional individuals found in p. 0 . B O X 5996 Bud Barkley, flying his well known and our friendly neighbor to the north. LAKE WORTH for catalog FL. 33461 FINAL STANDINGS The final two rounds of flying were completed on Sunday, again blessed FAI with calm winds and hot temperatures. PLACE NAME STATIC FLT/BONUS TOTAL The FAI event was already decided for all 1 Skip Mast, Royal Oak, Michigan 601.75 634.9/30% 1236.65 practical purposes with Skip Mast and (C-130) Cliff Tacie out of reach in solid positions 2 Cliff Tacie, Mt. Clemens, Michigan 618.20 514.0/ 5% 1132.20 of first and second respectively. The (Spezio) Stand Off event, however, was still being 3 Grahm Ireland, Ottawa 578.50 399.8/ 5% 978.30 hotly contested. Mast had a slight lead at (Fokker) the beginning of Sunday’s rounds with 4 Ray Gareau, Montreal 526.00 265.3/ 5% 791.30 his Sig Skyhawk, garnering an additional (Norseman) 3% of his flight and static score by 5 Sepp Uiberlacher, Ottawa 641.90 24.4/20% 641.90 utilizing the flaps on his bird. Skip’s Sky- hawk has established itself as a highly competitive model, receiving the sec­ CANADIAN STAND OFF ond highest static score in the Stand Off event, and earlier this year earning top PLACE NAME STATIC FLT/BONUS TOTAL static in the Expert Sport Scale event at 1 Skip Mast, Royal Oak, Michigan 112.25 97.3, 99.4/3% 210.60 the 1983 M int Julep meet. (Skyhawk) Closely following Skip was Cliff Tacie, 2 Cliff Tacie, Mt. Clemens, Michigan 105.25 104.5,104.5/0% 209.75 with a 13 lb. Sig 1/4-scale Clip Wing Cub (Clip Wing Cub) powered by an O.S. Max Gemini Twin 3 Steve Gray, Kitchner 100.83 107.9,107.9/9% 208.73 1.20 cu. in. four-stroke. The crowd of (DHC-5 Buffalo) spectators and fliers fell into silence 4 Don Paquette, Ottawa 104.03 99.4,107 /3% 207.23 each time this model flew, appreciating (Liberty Sport) 91.9, 91.2/3% 205.21 the realism of sound and sight displayed 5 Bud Barkley, Ottawa 113.56 • by the Cub. This appears to be an ideal (Tiger Moth) combination of aircraft and engine. 76 MODEL BUILDER C/ L ...... Con tin ued from page 61 THE FOX BICYCLE M OTOR (503) 653-7436. The next day at the same site you can NEW, IMPROVED Safer and Cheaper take in the “ Stuntathon ’83", which features precision aerobatics in four than a Moped PAMPA classes. For information you will or Minibike want to contact Don McClave, 7719 SE 28th Ave., Portland, Oregon 97202, or phone (503) 771-8453. MEMORY LANE DEPARTMENT Having a modest collection of old magazines, I sometimes find it enjoyable to just thumb through the pages, com­ * New and Improved Features— paring things then, and things now. The • Stronger die cast covers time period of twenty years ago always • Carburetor simpler to operate seems interesting to me, because it was • Smoother, quieter muttler then I was just starting to exhibit symp­ toms of the modeling bug bite. For the «Other Quality Features— • Operates like a motorcycle record, this should also dispel the belief with all controls on the that I am ten years old. handlebars. Built to same professional quality standards as If you are relatively new to the hobby, • Better performance than the famous Fox model airplane engines. Fox have someone show you their old mags. other bicycle motors... Bicycle Motors are the ideal safe and There are some interesting contrasts to and much longer lasting. today’s publications. If you are cheap inexpensive alternative to mopeds and mini bikes • Fits almost all 20". 2 < \ ...and are simple enough for even a child to like me, the first thing you notice is the 26". and 2 7 ' bicycles. price. The going rate in '63 was about • Kit complete with all controls maintain. A Fox Powered Bicycle provides 30 thirty-five cents. and brackets Nothing mph transportation, yet is light enough to be Looking at the pricing for supplies is more to buy. carried. Great for RV use or going to work. also amusing. You could buy a Fox Available through independent bicycle shops or call us direct. combat engine for about $9.95. Basic profile kits were about $3.50, and a buck would get you two or three props. If you MANUFACTURING CO signed up for AMA membership, it set FOX you back four dollars, but you get a lot 5306 T0WS0N AVE. FORT SMITH. »RK 72901 more for your money nowadays. (Ahem Our Hot Une: (SOI) 646-1656 . .. whether you want it or not! wen) Another observation is how the ad­ vertising seems so basic and trite as to get the proper slot. I will try to get a compared to today’s Madison Avenue picture of my jig in the next issue. slicko style seen pushing the latest Believe me, it is simple. C IIA K N Ii. I J I II I .11 N A T M · prefab shiny plastic big scale status job. The trailing edge slot is easier to do, as Back then, as now, there were certain it does not require any jig setup. I use topics of discussion going on that will one of the Dremel steel cutting wheels probably always be going on. These that has a thickness of just under one- were and are: the lack of junior partici­ sixteenth inch. As it is undersize of the pation, rehashing the rules, coming up wood stock that must be fit into the slot, with entry level events, and complaining it is necessary to run the wood through about the AMA. twice. What you do is adjust the cutter Another fun aspect of leafing through height just off center from the centerline the old pages is to come across names of the wood blank. After you run the and pictures of present-day modelers. blank through once, turn the blank over To comply with the AMA’s phase-in plan for the new frequencies, Ace has This can change your feeling that some and run it through again. Obviously, you available the frequency flag system to people have always been old. will need to make a couple of practice attach to your antenna to identify the Now what about that saying . .. "The runs on scrap to get the cutter-deck channel you*re using. For each channel used, you'll need more things change, the more they clearance adjusted. a hardware set and the appropriate two remain the same” . Once the slots have been machined flags to match your channel number. Ribbon is furnished with the flag. BUILDING TIPS DEPARTMENT out, you can then glue in the spruce Solid balsa wing models have a prob­ strips, using your favorite adhesive. It 5 0 L9 2 0-Frequency Flag H ardw are .7 5 lem with the edge surfaces dinging up has probably occurred to you that once 5 0 L91 0-Frequency Flag, 0 / Black .7 5 the strips are in place, they will make an 5 0 L911 -Frequency Flag, 1 /Brown .7 6 rather easily. On my racing or sport 5 0 L91 2-FVequency Flag, 2 /R ed .7 5 models that utilize this type of wing, I excellent guide and reference for 5 0 L91 3 -Frequency Flag, 3 /Orange .7 6 incorporate spruce strips for an edging shaping the airfoil, as they automatically 6 0 L914 -Frequency Flag, 4 / Yellow .7 5 define the centerline around the blank. 5 0 L91 5 -Frequency Flag, 5 /Green .7 5 that is resistant to the inevitable dings 5 0 L91 6-FVequency Flag, 6 /Blue .7 6 that seem to come about. Refer to Another feature is the advantage of 6 0 L91 7-FVequency F lag,7/V iolet .7 6 Sketch One. having a sharp trailing edge that is not 6 0 L91 8-Frequency Flag,8/Grey .76 The spruce strips as seen in the cross- fragile. section are fitted into slots that have Now there are several alternate varia­ A tt K/C. In c . been machined out. Now if this sounds tions of this construction. One of them is Box 611 D. Higginsville, Mo. 64 037 tricky already, relax. All you need is a to use a hardwood dowel for the leading (816) 684-71 21 drill press. The square notch into the edge. I haven't tried this myself, but Send ( 2 .0 0 for our complete catalog. balsa leading edge is made with a square have heard of good results. If leading All Ace products are available at your edged cutter, as typical in your Dremel edge strength is not critical, you could dealer. If you must order direct, add kit. It is necessary to fashion some sort of use a thin strip as shown for the trailing (1.0 0 handling fee. jig to hold the wood at a 45 degree angle edge. If you want to spend more money

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 77 10% nitromethane content. WILLIAMS Λ Tre Another event that will probably go with standard fuel is speed. The speed BROTHERS advisory committee has recommended that a 40% nitro content fuel be adopted. The concept here is to reduce the cost of i PILOTS participating in the event. With the STANDARD · SPORTSMAN RACING · MILITARY lower nitro, engines will last longer, besides saving money on the go juice. The exception to the standard fuel will WHEELS ► be Jet speed, as it is a totally different VINTAGE · SMOOTH CONTOUR BALLOON · GOLDEN AGE ballgame. For a pure event like speed, this fuel J&fø. < ENGINES restriction might seem like a step back­ W f P PRATT & WHITNEY · WRIGHT · LE RHONE ward, but there are other high per­ formance events with restricted fuel. Technology seems to have a way of ► compensating for restrictions, so even­ & W H IT N E Y · IE R H O N E tually the speeds w ill be back up there. The Formula 40 speed event is the perfect example here. Prior to the 40% rule adopted for this event in 1980, we were using 70%+ grog. But now speeds are back up to the pre-1980 level. That wraps it up for this go-around. VICKERS · SPANDAU · PARA8ELLUM Keep your glow plugs lit, and the wind at your back. Mike Hazel, 1040 Windemere SEND $1 FOR FULLY ILLUSTRATED CATALOG Drive NW, Salem, OR 97304. · DEPT. MB 181 ST. SAN MARCOS, CALIFORNIA 92069 necessary on the elevator hinge line, BIG BEAUTIFUL BOAT and draw a window around each one, Plug Sparks__ Continued from page 40 allowing an extra 1/8 inch or so. Go ahead and cut out these windows with a shown in the drawing) or vertical fins sharp pointed knife. You probably have somewhat resembling a Tiger Aero the picture by now. head. Next cut two pieces of medium to For those interested in the technical medium-hard balsa slightly oversize the aspects, the Kratmo 10 featured a bore of J-5 HYDRO UNLIMITED dimensions of the core. The thickness 22 mm, stroke of 25 mm, giving a dis­ 7-loot long by 3-fool beam mahogany plywood normally used is 3/32-inch stock. placement of 10 cc (.60 cu. in.) and a boat kit This Tunnel-Hull is a thrill to run on the The next step is to glue the sandwich water and a thrill to watch All wood kit$149.50 weight of 430 grams (15 ounces). Per­ Above kil c/w J-5 DRIVE-TRAIN $219.50 together. For adhesive, I prefer fiber­ formance figures give were .35 BHP Shipping included in U.S and Canada glass resin. Brush it lightly on all inside using a 365 mm x 220 mm prop (about a surfaces, being careful not to build it up 13/8) turning at 6000 rpm. One interest­ J - 5 ENTERPRISES in the hinge window areas. Set a heavy 256 Schuman Dr.. Newmarket. Alabama. 35761 ing fact was the clockwise rotation Phone 1-205-852-2S66 flat weight on the stack and let it cure for requiring a left handed propeller. P.O. Box 82 Belm ont. O ntario NOL 1B0 at least 24 hours. There are other Kratzsch engines, Phone 1-519*644-0375 Before we go any further, remember particularly those of Walter’s nephew, NOW PRODUCED IN THE U.S. to jot down the elevator dimensions who also produced a latter line of somewhere, and if necessary, mark on engines, that we also hope to feature in on your project, you can substitute the wood which side the elevator is on. the future. impregnated carbon fiber stock for the After the assembly has fully cured, spruce. In this case you would want to define the edges with a sanding block. THIRTY YEARS AGO, I W AS... narrow the machined slots, as the CF is This is easy, as the balsa sands down Our nostalgia column is based on a there to add strength, not to be shaped. quickly until you hit the plywood. Next, letter received from Robert P. Scarsdale, Getting back to wood, the trailing edge shape the desired airfoil with a sanding 79 Fairmount Ave., Park Ridge, NJ 07656, can have a thin plywood insert, such as block. At this point you will see how the wherein he enclosed some drawings 1/64-inch stock. This is a little more plywood core makes a perfect center- of the early Brown Jr. dated October 15, difficult to machine a slot for, however. line. After shaping and smoothing, I 1933. The original set of prints have been Referring to Sketch Two will show always apply lightweight fiberglass cloth in his possession since 1938 at which what I call a sandwich tail. This consists and thinned resin. When it has dried, time he was employed by Junior Motors. of two pieces of balsa sheet with a 1/64- you can cut out the elevator. Bob sent a duplicate set to Bill Brown, inch plywood core in between. I now Next, take a sharp knife and trim some who was so pleased he dropped in to use this construction nearly exclusively material around the hinge slots to give inform Bob he did not have a set of the on my speed and racing models instead adequate clearance for the hinges. originals. After talking to Bill, the of basswood. The advantages of this Then, epoxy in the hinges. Presto, you thought occurred to Robert that this set construction are: reduced weight, are done! should be made available to all, hence, strong sharp trailing edge, simplified COOL FUEL DEPARTMENT copies were sent to the SAM Archives. hinging work, and easy to shape. Two columns back, I reported on a However, Bob has a problem. Perhaps Here is the complete procedure. On a rules proposal boondoogle that was out there in the great modeling world piece of 1/64-ply stock, draw the outline attempting to save an ailing racing someone has an answer. Here is Bob’s of the tail surface, including the elevator event, nam ely Slow Rat. The CLCB query for information: outline. Next cut out this blank with interim vote went in favor of using "On May 22, 1937, I participated in a scissors, or a sharp knife. Use a sanding restricted fuel supplied by the contest gas model airplane contest sponsored block to smooth edges if necessary, and management. The final vote will basically by the IGMAA at Hadley Airport, New make sure dimensions are exactly as you come down to the question of what Jersey. I flew with a group from the want them. The hinges that are used are exact specifications for the fuel formula Philadelphia Gas Model Airplane Asso­ the nylon RC type. Locate the number will be required besides the maximum ciation. Adjacent to our pits were two 78 MODEL BUILDER Peter W est burg’s SCALE VIEWS

SUPER-ACCURATE AIRCRAFT DRAWINGS. USE FOR SCALE DOCUMENTATION AND/OR FOR DEVELOPING MODEL CONSTRUCTION PLANS. ALL DRAWINGS ARE 28 X 40 INCHES BORDER- TO-BORDER, AND ARE SCALED AS LISTED BELOW.

1/24th scale: W = 1 ft. Shts S Czech Avia B-534 2 8 Waco ATO Taperwing 2 8 Douglas 0-35/B-7 1 4 Davis D-1K 2 8 Douglas XO-36-XB-7 1 4 Douglas 0-25C 3 12 1/10 scale: 1.2" = 1 ft. Shts $ Douglas 0-31A/0-31B 3 12 Berliner/Joyce P-16 4 16 1 /12th scale: 1" - 1 ft. Douglas 0-38/0-38B 2 8 Curtiss BFC-2 Goshawk 4 16 Boeing F4B-4/-3 4 16 Douglas 0-43A 3 12 Curtiss F9C-2 Sparrowhawk 4 16 Boeing P-12E 3 12 Douglas 0-31C/Y10-43 3 12 Curtiss P-6E Hawk 4 16 Curtiss A-8 Shrike 3 12 Douglas 0-46A 3 12 Fiat CR-32 3 12 Curtiss Gulfhawk IA 2 8 Fokker D-17 3 12 Great Lakes Trainer 4 16 Curtiss N2C-2 Fledgling 4 16 General Western Meteor 1 4 Hawker Fury Mk I 4 16 Curtiss 0-1B/A-3 Falcon 3 12 Grumman F2F-1 3 12 Hawker High Speed Fury 3 12 Curtiss P-1B Hawk 3 12 Grumman F3F-2 3 12 Hawker Persian Fury 3 12 Curtiss XP/YP-23 3 12 Stearman 4E Mailplane 2 8 Monocoupe 90A 2 8 Curtiss SBC-4 Helldiver 4 16 Travel Air 2000 2 8 Swedish Sparmann P-1 2 8

ORDERING INSTRUCTIONS Price includes 3rd or 4th Class mail. For Airmail or ders. Master Card or Visa orders add 5%, include card First Class in U.S., add 25% of total order. For Over- number, expiration date, and signature. Send pay- seas Airmail (includes Canada and Mexico), add 50% ment to MODEL BUILDER, P.O. Box 10335, Costa of total order. Remit by International Money Order Mesa, CA 92627. or U.S. funds drawn on a U.S. bank for overseas or- CALIFORNIA RESIDENTS ADD 6% SALES TAX

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL EM MODEL BUILDER SENT YOU! 79 with a most unusual model. TARTAN" TWIl^ As can be seen in Photo No. 7, the model features a pop-up wing. What PROP ADA NOW makes it all the more astonishing is that Eliminates drilling lari this model is a rebuild of an old com­ hole in prop & 6 bolt mercial (as they called them back in AVAILABLE 1936), originally designed by Connie Thorall, the San Francisco Wing Cham­ pion of the Junior Birdmen (Hearst) Single-bolt prop chain. As can be seen, Drobshoff did an adaptor for the new outstanding job of restoration. Probably 2 lengths avail would have been easier to build a new short ffe longer t 50cc Quadra, and the long [ rM model than to re-build Thorall’s model. Webra “Bully” 3.5. Last reports are that the model has lost none of its touch in flying. Still goes Send $1.50 oostage good! J & J Model Accessories, 2020-3 Lomita Blvd., Lomita, Calif. 907'i 7 John Drobshoff also called to remind Phone: (213) 534-3400 one and all of the Marin County Contest sponsored by SAM 27, featuring two young men were and whether the ‘Mr. separate divisions of R/C gas and F/F Diablo’ was ever duplicated." rubber, still scheduled at the Olive Tennis and Swimming Club. Besides the How about that men?? Quite a few of excellent French cuisine being offered you "youngsters" flew at Hadley. Does at the banquet, the complete facilities of anyone remember this model?? The the Racquet Club have been thrown modelers?? We would love to hear from you. open to the contestants. Activities include swimming, racquetball, tennis, SAM RAMBLINCS and many other indoor sports to include SAM 8: Received a most interesting all interests. Sounds toogood tobe true ! letter from Ray Chalker, 950 S. Fawcett, What the heck, if you get tired of all that, FLY OVER LAND OR WATER! SUMMER Suite 301, Tacoma, WA 98402, describing you can always go fly some m odels. . . OR WINTER With R/C Hovercraft. Kit the latest meet held by SAM 8, on June models include: Challenger 1, Length 24" or is it the other way around?? 12. width 19" S29.95 + $3.00 shipping. XR-1B, SAM 29 . . . TEXAS, THAT IS! Length 40" width 30” $69.95 + $7.00 Among the more avid flyers is Bob shipping. To order, or for more information, Benjamin who does those gorgeous Received the latest newsletter, "The write-ADVENTURE MODEL CRAFT cover paintings for Model Builder. Planesman” , from James "B o " Buice, 800 P.O. Box 255 Youngstown. Ohio 44501. Shown in Photo No. 6 is Bob, himself, 8th Ave., Suite 106, Fort Worth, TX 76104, Checks or money orders only, please with a DeLong 30 powered Zipper and a which contained a very hilarious write­ Ohio residents add 5.5% sales tax. .020 size Playboy Sr. up by Contest Director, Bruce Norman One of the reasons for running this (edited slightly, of course) of the SAM 29 men in their early twenties who had an photo is to show the background area Annual Team Contest. Here’s what early plane so good looking it knocked representing Hart's Lake Prairie that Norman sez: my socks off. SAM 8 is hopeful of offering as a base for "This contest will probably gain na­ "The aircraft looked similar to a the 1985 SAM Champs. Ray will admit tional prominence, as contestants from Cavalier, with elliptical wings, tails and the Army has been none too coopera­ far away places such as Dallas, Waxaha- planked fuselage. The model was only tive, moving the boys off the field chie, etc., are becoming regular faces at six feet wingspan powered by a Baby prematurely on this day. This was not these meets. Prizes were overwhelming. Cyclone. The model was painted black, before everyone enjoyed excellent Each m em ber of the w inn in g team with the nose and leading edge of the flying weather and lots of thermals. In received a gold (?) medallion, not unlike wing and tail flamed in red. On one side short, a great time was had by everyone. those awarded at the Olympics. In years of trie wing, painted in red, was an Another tidbit offered is that Ray has to come, there is no doubt these awards excellent rendition of the Devil, com­ finally been bitten by the R/C bug and w ill become cherished possessions by plete with horns and three pointed used a Powerhouse to obtain a 25 collectors of famous historical aero­ collar (Obviously taken from the trade­ minute flight! Nothing like encourage­ nautical memorabilia, (haw-w-w!) mark on a bottle of Pluto Water). On the ment! " Enthusiasm was at an all time high as opposite side of the wing, also in red, Ray also points out SAM 8 now has its the spectators were heard to chant, 'Max, was a very neat lettering job of ‘Mr. own field near Tenino (35 miles south of max, max.' Due credit should be given to Diablo.’ What a knockout! The finish Tacoma). The field wasobtainedthrough the officials for keeping the crowds could have won a trophy! the efforts of Don Zipoy and Bob Benja­ under control while wildly cheering. "Unfortunately, the model had not min, the latter of whom has turned out Even the fifth place team members been flown under power prior to the to be a really fine O /T competitor. His received loud acclamation when the contest, and naturally, the Baby Cyclone Buzzard Bombshell has been unbeat­ scores were announced. It only proves was as stubborn in starting as a Missouri able to date. they deserved awards for the 100% effort mule. I witnessed the model successfully Chalker stated that SAM 8 is still to have fun. Because of the high cost (?) passing its hand-gliding tests. They hopeful of hosting the 1985 SAM of putting on a meet of this magnitude looked so good the owners decided to Champs. This columnist has advised Ray (double haw!) there simply wasn’t make their first flight an official one. The to present his proposal (properly pack­ enough money for expensive medal­ thrust line must have been off, as well as aged) to the West Coast SAM Vice lions to be awarded through fifth place. the incidence, as the model made a President, Sal Taibi, for consideration. (Ed. note: What happened to all that series of high speed loops never gaining One thing for sure, it would be nice to Texas oil?) (Money) too much altitude. Drifting with the avoid the heavy heat and dust encoun­ To show we actually received pictures, wind, the model finally made a disas­ tered in the south. Photo No. 8 shows Jim Buice with his trous impact with the only tall object on SAM 27: While testing rubber models good flying Class B-C Playboys. For the field, a water tower. Needless to say, at the U.S. Free Flight Champs at Taft those readers who get confused in that was the end of 'Mr. Diablo’. over the Memorial Day holidays, the reading results of Texas contests, a word “ To this day, I still think about the columnists ran across his long time of explanation is in order. Dr. James incident and wonder who those two friend, (Circa 1935), John Drobshoff, Buice, father, is know familiarly as “ Bo” .

80 MODEL BUILDER The son, also James Buice, who is also training to be a doctor (to thoroughly confuse the issue), is known as Jim. Both POWER TO SOAR fly old timers with the same enthusiasm. TO NEW HEIGHTS "Following this, at 6 p.m., (these Texans fly all day and night), the long awaited spot landing contest was run off. with spectators noticeably of the fairer sex. A green flag (located by rocket), about a quarter of a mile downwind, was set out as the marker to aim at. 6.8 oz. During the next thirty minutes some Monocoupe 90A V fantastic (I!) skills were noted. Despite a Ά scale few rough landings, all walked away Send $2.00 for Catalog LEISURE LT50 intact. Charlene Vanlandingham, wear­ 0.10 cu. in equivalent glow engine di.s- ing a huge smile, was declared the Ikon N'WST Dept. M B. plaeement. For two-meter sailplanes, or winner, as her plane sat exactly on the sport scale aircraft designated spot. With all this pulchri­ P.0 Box 566 Auburn. WA 98002 tude, perhaps the Mayor o f Fort Worth (206) 941-8248 could award the trophy next year. (After all, what have the Dallas Cowboy Cheer­ color shot doesn’t allow the pretty red, leaders got that they don't?) . .. dunt blue, with yellow trim to show up in a enser. black and white print. " 'Think that was allVas Al Jolson used Bill, who retired recently, has found to say. 'You ain't seen nutting yet!'A fter himself busier than ever (Same old story, all but one o f the 120 hot dogs were won’t people ever learn not to retire?) as KELLER 25 consumed, at 6:45 p.m., most notice­ he is now writing for the Flight Safety 0.24 cu. in equivalent glow engine dis- able was the number of contestants Foundation as a contributing editor. plaeement. Flies any .19 to .24 powered doing calisthenics, jogging, sprinting, This, and the “ honey-do" projects plane. For 100-inch sailplanes, and sport and throwing rocks, etc., to loosen up around the house, have meant no scale aircraft Manufactured for Leisure by the bodies and especially those throw­ chance to get a razor near a stick of Keller Motoren of West German) ing arms for the rigorous (!) best three- balsa! out-of-nine flights in the paper glider Bill is planning to radio control the event. model, as good flying fields are not that "At 7p.m., all contestants were issued plentiful. Mackey concludes by saying a glider kit consisting of a page from an the plans are still in the offing, as the old ‘Planesman Talks’ newsletter, two originals were just rough building out­ inches of 420 Scotch tape, and as many lines. Need to put down a few more paper clips as needed. The next few construction lines. We’ll be looking KELLER 50/24 minutes were almost completely silent forward to this plan! (1.46 cu. in. equivalent g lo w engine d is ­ (except for a few oohs and ahs from the GERMANY placement. The standard by which all other spectators admiring the deft unerring Gerhard Everwyn has been respon­ electric motors are compared. Only 0.46 skill of folding aerodynamic master­ sible for forwarding a few photos of cu. in. equivalent glow displacement, but pieces). Erich Punke and the old timers he has pulls like a .40! For F.4F. com petition "Noted were some designs that have built in the last year. Photo No. 10 from sailplanes, o r .-«0-size pattern scale planes. brought fantastic precision over the Erich shows the framework of his HS 100 many years since grade school. All con­ (a 1939 German F/F design) fitted with a testants then began tosharpen their trim Saito 30 four-cycle. Thanks again to Phil Discover exciting electric Might as practice flights were taken. Bernhardt for the German translation. for yourself. Send a self-addressed, "Competition was intense: official This helps tremendously! stamped envelope for our latest flights ran 2.4 sec., 3.8 sec., 8.1 sec., 18.7 Gerhard also reports he has been able catalog and technical bulletins. sec,, and then 27.2 seconds!! Mike to amass a considerable number of old Reeve’s best total time set a new club German model publications with dupli­ record for this type of flying, just wait cates being sent to other O /T devotees. until next year!! ’ An interesting sidenote gleaned from Leisure Bruce Norman, in closing, stated the the "Modelflug der Deutschen Luft- II Deerspring Irvine California 92~I « results of this famous “ Team Contest of wacht” reveals that a group of German 1983" were recorded for future genera­ modelers visited Japan in 1941 to arouse tions of modelers, being sent to Tarrant interest in models! County Court House, Smithsonian Insti­ SOUTH AFRICA Foley Ave., Kankakee, IL 60901. The tute, Library of Congress, time capsules, Received a classic shot of a Buzzard Ohlsson 60 powered Playboy Senior etc. (Help! Man the pumps, it’s getting Bombshell that could pass for Joe Kone- taking off was photographed at the too thin to shovel!) fes original sitting on the runway at the Chicago Aeronuts 22nd Spring Annual SAM ABROAD 1941 Chicago Nats. Stan Ohlsson sends Old Timer Contest at Bong Field on June NEW ZEALAND: After the report on the in Photo No. 11 of his neat looking 5. This near Playboy is the product of Australian SAM Champs, we could Buzzard Bombshell sitting on the Yisante Harold Munger, who regularly com­ hardly ignore a letter from Bill Mackey, Kraal Airfield in South Africa. Stan is a petes at the Chicago meets. 310 Hurstmere Rd., Takapuna, Auck­ dyed-in-the-wood O/T addict, as he Photo No. 13 should come as no land, New Zealand, for a photo of his sent in other photos of his other O/T surprise to the readers, as Sherman most interesting Tee-Tail design. models. The O /T game is getting bigger Gillespie, 6248 Blauer Ln., San Jose, CA This model, built in 1936 or '37, is all the time in South Africa! 95135, amply demonstrates what his love powered by a Baby Cyclone. As can be READERS WRITE is in old timers . . . rubber! This shot of a seen in Photo No. 9, the model was not If it wasn’t for the readers who occa­ Jimmy Allen "Bluebird” is a classic covered with bamboo paper as original­ sionally send in a photo and possibly a closely resembling the photo used in the ly, but Bill has succumbed to the new contest report, this column would be as kit plans. Solar Film. This has resulted in an ex­ dead as last night’s pancakes. Photo No. Sherman has been instrumental in tremely attractive model. Too bad the 12 was sent in by Jim Alaback, 785 S. obtaining the use of school auditoriums

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ground. A good variety of models are calling up Bekins, Chet then announced shown in this shot beginning with there was a special cash award for Pond’s Dallaire, Otto Bernhardt’s Lanzo anyone winning with a Lanzo type Record Breaker (the eventual winner), a design. Cloud Cruiser, and Jim Kyncy's Ander­ Upon asking Bekins what kind of son Pylon. All models are fully compe­ model he had won with, the entire titive and not built for exhibition. audience roared, well knowing that Don Incidentally, in talks with Otto Bern­ had won with a scaled up Goldberg hardt, who runs 77 Products, the “ King” Diamond Zipper, sometimes called the (from King Otto, natch) expressed the Gas Bird. viewpoint weshould have moresketches Lanzo was properly sympathetic and and kinks on ways and means to improve said, "W ell, better luck next time. Here’s the building and flying of old timer a buck for your trouble." With laughter models. O tto said probably the best still ringing in their ears, Lanzo and thing this column ever carried was the Bekins then left the podium. Shielded Ignition System as designed by Men, that’s what thisold timer game is Tom Bristol. Subsequently published all about. It’s great to be able to win, but circuits are only improvements on the it is even greater to be able to rub elbows original basic circuit. (or is it shoulders?) with your peers, This writer has several sketches on buddies, and friends. You don’t see that and gymnasiums for the flying of indoor hand but was not certain if the readers in any other form of competition . . . scale and other indoor types. This has were interested in this type of column. only the Old Timers!! · been the bugaboo of indoor flying (just We would be most interested in the like outdoor F/F), the lack of suitable reaction of the readers, as we can readily areas to fly these models. Sherm reports accommodate this type of column. In BIG Birds ____ Continued from page 25 a renaissance of indoor O/T flying addition, if you, the reader, have a parti­ scale. So c’mon out and join the fun! cular pet gimmick for the building and As can be seen in Photo No. 14, former But an in h e re n t safety hazard has or flying of old timers, we would be most SCAMP (Southern California Antique reared its ugly head. Even though your pleased to hear from you. In short, engine may be completely dead, i.e. Model Plane Society) Chuck Provance, fellows, share your experiences with the is still very busy turning out old timers. plug and/or boot removed and kill next fellow. Lie'll appreciate it! Although the model kit was very popu­ switch on, the spring starter itself is not lar in its day, the California Chief A-2 THE WRAPUP disabled. It's still sitting there, intact, just (sometimes called the Cheese) is rarely Next month we will carry a complete waiting for someone to engage it so it produced. Originally designed around description on what went on at La Junta, can show off and do its thing. And it did the Baby Cyclone engine, Chuck put a site of the 17th Annual SAM Old Timers just that to a normally curious 3-1/2 P.A.W. 1.46 diesel engine in his version. Championships. Photos from our official year-old who tried to emulate his elders Last reports on this model was that it SAM photographer, Harold Johnson, of by rotating the prop backwards .. . and was entered in the La Junta SAM Minneapolis, Minnesota were a little got whacked on the hand for his efforts. Champs. late in coming through so we had to put The engine in question was absolutely The nickname, “ Cheese", was derived off the report until the next issue. dead; it could not fire up. But the starter from the fact that the pre-fabbed sides However, to show you some of the fun was very much "alive" and did what it of 1/4 inch hard balsa were often not oil ahead of time, at the SAM Victory was designed to do . . . snap the prop proofed by the new modeler. In no time Banquet, the highly prized perpetual through a number of revolutions. flat, the fuselage sides soaked up the oil trophy for the R/C Texaco event was Luckily the toddler wasn’t hurt badly, until the strength of the sides felt like won by Don Bekins in a five man fly-off but he could have been, and this inci­ cheese. Regardless, the model kit was a (the boys are getting too darn good). dent really got to me because my Adam tremendously quick way to get into the Inasmuch as the Roberts Trophy for is also a very curious 3-1/2 year-old .. . air, and many a modeler was introduced R/C was originally won by Chet so, for all practical purposes the poor to gas model flying this way. Lanzo and donated to SAM as the tyke with the great BIG tears streaming Lesher Dowling, newsletter editor of Texaco R/C Perpetual Award, the col­ down his cheeks was mine . .. and did I SAM 21, is responsible for the next umnist throught it only appropriate that feel lousy. That engine should not have photo, No. 15, showing the lineup of Chet Lanzo award the trophy. (Having been where anyone could have gotten antique models for judging in the Beauty won it again in 1982). to it (insuring that it was “ dead” and event. This photo, taken at the Salinas So, after some shennanigans at the therefore no longer a hazard, was a Aero Modeler (S.A.M.) meet, also shows microphone, Pond turned the awarding terrible assumption), and for sure, the competition going on in the back­ of the trophy over to Lanzo. Upon kid’s parents should have had better

82 MODEL BUILDER control of him. It's up to us to keep our eyes open and make damned sure this kind of situation won’t happen again. . . because anyone who "plays” with a prop that has a SSon the other end of the shaft is gonna get bit. I like the starter; it's simple and effec­ tive, and it's a much needed item that most every BIG Bird owner can appreci­ ate. Yet, it always has the potential to bust up a hand or wrist, whether or not the engine is in running shape. And that hand or wrist that gets beaten up may be yours or a buddy's .. . and as most of us BIG Bird types are close to being middle aged (or older), this kind of accident could be more devastating to us then to a small child; you see it’s a fact of life that older bones are more brittle and break and crack easier than younger bones. . . and they also take longer to knit and heal properly. So, please, be extra care­ ful around props.. . and assume that all engines have a SS installed in back. 17x6 PROPS A few months ago I mentioned about running my new Magnum .91S 4-stroke with 16x6 and 17x6 props ... and re­ ceived letters asking where I obtained the 17x6. What I hadn’t mentioned was place for vittles. If you haven’t tried that all the 17x6’s I have were cut down water flying (or using skis), you really from 18x6's that weren’t doing anything have been missing out on F-U-N. You’ve to earn their keep. I've found that all the got to be prepared, however, and unless stories I'd heard about 4-strokers liking someone else has a boat of some kind, a wide-blade props were true; the engine one or two-man raft would be a nice does well with these type props when investment (they're available for under married to something like Sig's1/4-Scale thirty bucks); it would be mighty em­ Cub. barrassing to get caught with no means I've checked around, and to the best for retrieving a BIG Bird that ended of my knowledge there are no 17x6’s upside-down, or one that was drifting made in this country. The only com­ the wrong way 'cause the engine quit. mercially available 17x6 I know of is Also, many guys use other than wooden called "Super Thrust," which I’m pretty props when flying off of water 'cause the sure is made in England by Airflow. If spray on takeoff literally eats wooden anyone has any more info on 17x6 types, blades. But it is fun and you’ll never please let me know and I’ll pass the poop know what you’ve been missing unless on. you give water flying a go. IKON NORTHWEST Emil Neely has some really good and PLASTIC SERVO TRAYS: well-proven kits to offer . .. and I do A GREAT, BIG NO-NO and often. Some of us just don’t realize mean well-proven. The Monocoupe Some guys never get the word . . . or what kind of forces are acting on the 90A raising a cloud of dust on its takeoff perhaps they just don't heed good servos and the trays. Seems like these run in one of the photos is a five year-old advice. Whatever the reason, quite a few guys don’t read all the material available prototype; sure, it’s dog-eared (that's a birds have pranged because plastic on BIG Birds." nice way to say "ratty” ), but the bird has servo trays were used. I don’t like them, If you have been using plastic trays in held together well all this time and still and don't think they should be used in your biggie and haven’t had any prob­ flies better than most. any airplane, as a better and more rigid lems, it’s in spite of you and not because In addition to the Super Cub and trav can be easily made from p ly . . . and you did something right. Odds are Monocouple, Ikon will shortly have tailored for your specific installation. you're treading on very dangerous both radial and in-line versions of the Bob Chanslor, who hails from Peculiar, ground and are always just a hair away Fairchild 24 ready for your hot little M O, was one of many who’ve written or from loosing your flying machine. So hands to get into. All Emil’s planes have called about plastic trays being a dumb don't take any chances, and use those about a 9-foot span, and gross out at 16- way to go. Bob didn't mince any words scrap pieces of ply to custom make servo 17 pounds with Quadra. And let me tell about how he fe lt... trays; you'll be glad you did. you that you don’t need anything more “ I don’t understand why anyone And while on the subject of servo than a Quad for any of these birds; I flew building a giant model will try to use mounting, let’s touch on anchoring his old Monocoupe and it’s a "hot- those...... plastic servo trays. I watched a those servos to the (plywood) tray. I dogger” for sure. It'll do just about any­ new Nosen Aeronca Champ go in after can’t recall seeing or hearing about thing the pilot is capable of, and look its first takeoff because the servo tray using anything else but the long 42 good doing it. And for those who like to came loose. They may be okay in smaller screws for installation and, as far as I’m go hog-wild with scale details, all the planes, but they just aren’t worth a — in concerned, that’s a punky way to put planes lend themselves well to gussying anything that's BIG. It’s so easy to make and keep servos in any BIG Bird. So up. one out of 1/4-inch plywood that is con­ here's what I’ve been doing for a while: Mr. Neely also has floats that work so siderably more substantial. I don’t know instead of #2 screws. I’ve been using 3-48 well, he even uses them on his own air­ whether it’s ignorance, or stupidity . .. machine screws and self locking nuts to craft; that’s like knowing the cook eats or both. The admonition against them keep those servos in place on the tray. his own stuff instead of going to another should be repeated loud, and strong, Perhaps it is an overkill on my part, but it

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berg’s very underrated “ Shoestring” kits UPDATE ON THE COMPUTER back in the middle sixties. I’ve had a IGNITION MODULE thing for the “ Shoe.” That kit, I’m sure, Last month I introduced the ignition fooled a lot of people into thinking that module, described how it worked and it was strictly a hard-to-handle racing how well it made Quadras and such run machine . . . although, quite to the by eliminating the #*@&%# points, and contrary, it was big and lightly loaded, told you how to get one. This month I’ve and a dandy looking sport and fun flyer got a change to plug in: instead of 13" MINIATURE SCALE AIRCRAFT KITS ea $6.95 OUTSTANDING DETAILS. 3-VIEWS 4 HISTORY with a standard front rotor K&B forty up writing to Jim Hursh for and about the .045” Strip Wood. Light Sheet. Hardware 4 Prop. front. Back in February, Bob Siegelkoff’s computer ignition module, please direct Heat Transfers. Japanese Tissue PLASTIC CYLINDERS in ALCO and HEATH BIG Kawasaki powered version got my all letters and queries to my address, ALCO SPORT 1929 ZIPPY SPORT A.R.V. "Shoestring” juices flowing again when which you’ll find at the end of every WATERMAN RACER 1921 HEATH PARASOL 1928 I AERONCA K 1937 Span 16" Length 9" I spied it at the Northwest Model Expo in column. INDOOR MODEL AIRPLANES by Lew Gitlow Puyallup. Unfortunately, a second move For those unlucky few who may have 48 pgs. 100 tllust. (reprint) + FREE PLAN.. $3.95 PEANUT POWER by Hannan. 80 pgs $8.95 loomed on the horizon and thoughts of just picked up their very first copy of INDOOR BALSA PACK $6.95 P NUT PACK $6 95 future projects were shoved onto the MB, this ignition chip is absolutely fan­ JAPANESE TISSUE 10 Ige 5 col. roll...... $5.95 I back-burner. What I didn’t know until tastic. It mounts directly on the firewall, CONDENSER PAPER 2/$2.50 MICROLITE $3.25 RUBBER LUBE $1.50 BALSA CEMENT $1.50 writing Siegelkoff was that he built his connects to your engine with only two THRUST BEARINGS, Mini Dual or Dual...... $1.00 from Bob Morse’s plans .. . and so I now wires (one to ground and the other to PIRELLI RUBBER .020 to .090" & 125 ...... $2.35 have a set, also. the wire that normally connects to the 6:1 WINDER $3.95 16:1 MARK 1 $11.95 I Mr. Morse echoes my feelings, ex­ points, which are bypassed), and does P-NUT CO-2 ENGINE $34.95 CHARGER $8.95 P-NUT PROP PACK 4 props, shafts, w.&p. $2.95 actly; we both wonder why the “ She” wonderful things for you and your SCALE CYLINDERS 5 pack, 3/8 4 1/2" $1.00 hasn’t been done before in this size, as it engine: it eliminates the points; en­ I M S P-NUT PLANS ALL 5. 10 s h e e ts ...... $15.00 appears to be very popular and well- hances the idle; eliminates that m id­ ADD 10% POSTAGE-MINIMUM POSTAGE $1.50 1983-4 CATALOG 18 ILLUST. PGS. $1.50 I liked. And, in keeping with the very range hesitation; gives a crisp and o bjective view that “BIG Birds Fly positive throttle response; and improves BOX C, GARBERVILLE, CA 95440 Better,” Bob S, reports that his “ Shoe­ overall performance by automatically string” does, indeed, do everything advancing the spark as you advance the makes no sense to trust the traditional better. throttle. This thing really works, and is wood or sheet metal screws to keep Like many others, I can, and do,spend one helluva good buy at $14.95, which servos where they belong, especially hours “ reading" good plans like these includes shipping. Also, please deter­ with the violent maneuvers we so often because there’s so much to look at and mine whether or not your engine has a engage in. I fugure that if plastic servo contemplate ... all the while licking my two or three-leg coil, ’cause there are trays are a no-no, then plain old screws chops in anticipation. And because different modules for each type; typi­ for servo hold-down must also fit into Morse’s plans lend themselves so easily cally, the Quadra, Roper 1.9 and the the same category. This type of installa­ Mag-Aero have two-leg coils. tion does make installing and removing toward daydreaming, I find myself be­ servos a bit more of a chore, ’cause the coming another Walter M itty and vividly THE ROCS FIRST ANNUAL whole tray has to come out to do it right picturing my finished bird tracking BIG BIRD BASH . .. but, I think it’s worth the little extra straight and true down the centerline Was surprised to get letters and phone fuss. I get the same peace of mind doing and nimbly rotating skyward. calls asking how our first fly-in w e n t.. . it this way that I get from using 3-48 According to the plans, this 41% of full and have been happy to report that it screws and self locking nuts to keep a 4- size "Shoe" spans 94-1/2 inches, has just went WELL. It could have hardly been 40 clevis secured to a control horn. 'Nuff a tad under 1500 squares, and should better, what with 40 pilots, 36 BIG Birds, said. .. have a 3.15 Kawasaki to haul its 28 over 2000 spectators . . . and some MAMMOTH SCALE PLANS pounds around. With my much lighter, mighty nice flying weather. Gonna have I did it again, gang; got myself into "hand-massaged” Quadra (it equals a a separate piece on the fly-in . . . prob­ another situation where I owe an apol­ 2.4 Kioritz in power), and with careful ably next month. ogy. Seems that I really stirred up a attention paid to the building and finish­ TIP OF THE MONTH hornet's nest out there, 'cause all you ing, I know I can bring my bird in at "Never Play Leapfrog With A Uni­ guys who like Bob Morse's Mammoth under 24 pounds. corn!” Scale Plans were irrita te d that I've But even if the "Shoe” w on't fit (ugh) Al Alman, 605168th Street East, Box 95, referred to so many other plans without send an SASE to Mammoth Scale Plans Spanaway, WA 98387. Good news about mentioning what Bob has available. And (3351 Pruneridge Ave., Santa Clara, CA pix, guys. We can use color prints if I agree . . . I completely overlooked 95051, (408) 244-5814) and find out about they’re clear and in focus, and don’t Morse’s outstanding lineup of BIG Bird Morse’s twelve other quarter-size or have backgrounds that are too dark (like plans . .. somehow. Bob, I am sorry. . . larger beauties. He’s got a G-O-O-D many flash pix). Most all shots of birds Ever since I built and flew two of Gold­ lineup ... and he does G-O-O-D work. taken at the field should be good enough 84 MODEL BUILDER for reproduction, so now you don’t have to sweat sending me those valuable negs ASTRO CHALLENGER COBALT MOTORS anymore. As most everyone shoots in color, there’s no excuse for not having SUPER POWER FOR WORLD CLASS COMPETITION some photos to send me. .. FLY SAFELY. We built our first cobalt motor in 1975 for our SOLAR-powered unmanned airplane SUNRISE. The SUNRISE motor weighed 16 ounces and produced 3/4 HP Last year we built the SO LAR PROPULSION SYSTEM FOR THE DUPONT SOLAR CHAL­ Electronics . . . Continued from page 31 L EN G ER that made us histone flight from Pomtoise France to Mansion. England on July 7 1981 The SOLAR CHALLENGER C O B A L T M O TO R was only three inches in diameter but thing which we all know is to some delivered almost 3 H P " By using this advanced technology degree an indication of quality, and we bring you our new ASTRO CHALLENGER COBALT M O TO R S , super-pertormance motors lor the serious while we don't need something quite competitor, for the modeler who demands the best and good enough for the Bureau of Stan­ simply worn settle for second best The heart of these dards, we do need something that is motors is the new. high-energy, rare-earth COBALT magnets They supply much higher magnetic flu* and are accurate and dependable within practi­ not damaged by overloading T o efficiently utilize this cal limits, and upon which we can magnetic potential we have incorporated 1) a high-grade 1 Challenger 05. . $75.00 depend and trust with the longevity of silicon steel armature lamination, (2) a high-performance our models . . . that is the bottom line. commutator capable of running at 35.000 RPM and 350° F and Challenger 15. . $100.00 (3) a new silver graphite cartridge brush that can safely Challenger 25. , $125.00 My choice has always been the commutate 2 5 amperes The net result is a really super power Simpson 260, a multimeter that has for motor that is ready for world class competition TH E NEW Challenger 4 0 ., $150.00 ASTRO CHALLENGER COBALT MOTORS - NOTHING ELSE years been a standard in electronics. As a Available now, see your dealer COMESCLOSE« matter of fact, I still use one on which I or order direct. Send stamped self addressed used to read the relay current on gas LARRY JOLLY SETS ELECTRIC SPEED envelope for specifications to: tube receivers, which will tell some of RECORD OF 9£85 MPH (2-WAY AVERAGE) you something. The 260 is made by Simpson Electric Co., a U.S. company ■■fw^ ^ o^yrocosubjetcttond astro flight me. whose business is measurement instru­ FAI CONFIRMATION. 1 3 3 1 1 BEACH AVENUE VENICE, CA 90291 ments only. The 260 basic design has been updated through the years to meet the changing needs of the state of the I use it. Far more often, as when looking art. One of the latest models, the one for a null, or peak, in value, the analog which I recommend to the R/C elec­ 260 is faster and easier to read. It is faster tronics hobbyist is the 260-6XL, an and easier to use when testing transis­ instrument which has all the previously tors, and forward/reverse tests of diodes. mentioned features, a 4-1/2 inch meter There are a lot of times when you are face, and w hich has been designed looking merely for presence, and not especially for solid-state circuitry mea­ value. The easily seen and read moving surements. It provides for all of the basic needle is far easier to work with than a measurement needs of not only the bunch of flickering figures which you beginner, but also an advanced, experi­ can’t read without conscious effort if enced technician. they have passed a peak and are now The Simpson 260-6XL has the following decreasing or are still going up. A good capabilities: digital VOM is defintely a worthwhile DC Volts: 0 to 1000, in 9 ranges. addition to the electronic workbench, AC Volts: 0 to 1000, in 7 ranges. but I consider a good analog VOM as the Ohms, Conventional: 0 to 10 Megohms, basic test instrument you should in 4 ranges. consider. Ohms, Low Power: 0 to 10K, in 2 ranges. Simpson instruments are available at DC Current: 0 to 50 Microamps; most large electronic supply houses, 0 to 500 Milliamps, in 4 backed by a large number of authorized ability.) ranges; service centers all over the country. If My frequency is 72.400. W ill this bean 0 to 5 Amps. you can’t get information locally, write outlawed frequency when the new rules Output, AC: 0 to 250, in 5 ranges; directly for a catalog. The address is become effectivef DB: -20 to +49, in 5 ranges. Simpson Electric Co., 853 Dundee Ave., Tower Hobbies no longer has servos Accuracy as low as 2% is claimed; 3% Elgin, IL 60120, (312) 697-2260. The cata­ or flight packs for my transmitter. Can on the AC scales. Internal protection for log will tell you even more about my other receivers and servos be used with the meter movement and electronic favorite, the 260-6XL, which is priced at it, and if so, what modifications would circuitry is provided. Two batteries, a $139, and all its relatives and accessories. be neededř common “ D” , and a 9-volt transistor BATTERY TESTING BASICS My transmitter battery is a 6-volt 550 type are required and furnished. The 260 A letter from R.F. (Bob) Hilton, Shelby, MA; the receiver battery is a 4.8-volt 550 is UL listed, too. North Carolina arrived. He writes: MA. For more specialized uses, the 260 can I have several questions which I know These are, I am sure, very basic ques­ be equipped with accessories to measure are very basic, but I have been unable to tions, but to some of us it is the basic temperature, high voltage up to 40KV get answers (or them. I have an old things which stump us. DC and 10KV AC. Various types of cases Tower Six Channel outfit which is about lust a thought that I might pass on is are available for field useand protection. five years old (made by Kraft), it is in like- that for those of us who are retired and It is available with mirror backed scales new condition and has been used very on a fixed income, it is a real joy when for greater reading accuracy, and in little. I have added a jack in the bottom we see in your articles ways and means pushbutton reset protected models. of the case to check the batteries with a to make inexpensive equipment that we Some of you nodoubt will bethinking voltmeter (sketch follows). Is this hook­ can use. Many thinks for any help you “ Why not digital” ? Well, I also own a up OKÍ can give on these questions. digital instrument, so I can speak from What can I do to impose a load in my Well, Mr. Hilton, your thanks are personal experience. The digital VOM leads so as to get the condition of my accepted, however, as I have enjoyed has only one advantage, that of being batteriesf (Both transmitter and receiver many of your hotels around the world, it able to accurately display fractional batteries. As these batteries are five seems only fair that I now do something units. And when I requiresuch accuracy. years old, I question their depend­ for you! And yes, your questions could NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 85 mitter’s timing at the factory; the Ace instructions tell you how to set it up as you go. If you are flying sailplanes JUTJNKS exclusively, you’ll have two unused THE ULTIMATE IN SAILPLANE PERFORMANCE servos from the original airborne. Why Standard Class R C sailplane lor not add one of the above receivers and a slope; F3B; and thermal contests battery and equip glider Number Two? THE MARKER BEACON S E M I K IT : INTERFERENCE MYTH FIBERGLASS FUSE We’ve all heard it. especially at those 00 i F O A M C O R E S FO R R/C fields located in the vicinity of an $ 8 0 . W IN G S , S TA B A N D airport . . . any airport! Some guy is includes shipping RUDDER flying along on 75.640 (White & Green and handling FULL SIZE PLANS . . . not Green & White) when all of a Wingspan 100 in. sudden the fates catch up with him and Surface area 850 in.' as he is carrying back the pieces, he is Flying weight 60oz.-144oz. heard to say. “ TFtey must haveturned on L u tn i & U rprlses the marker beacon over at the airport” . P.O. Box 1697, San Luis Obispo. Ca., 93406 (805) 481-0789 Well, maybe it wasn’t pilot or a build­ ing error of some sort, but it definitely was not the marker beacon that did him Can you really afford to use less in. Marker beacons do not cause inter­ ference to R/C airplanes, on 75.640 or than the best battery packs made? anv other frequency. If you’ve experi­ enced it. you have a badly mistuned receiver, plus you were flying in the wrong place! SR aerospace grade battery packs give you To begin with, all airports do not have • 3 Times the flying time marker beacons! Only those with an ILS • The ulimate in reliability (Instrument Landing System) do so. and • 80 Packs to choose from for you won't fine those at every grass strip transmitters, receivers, and in the country. Generally, they are only electric powered cars and planes found at airports which handle com­ • Send a self-addressed, stamped mercial and military traffic. Further, the business size envelope for full details marker beacon, commonly known at "Fligh Cone” and "Low Cone" to pilots and controllers, operates on 75 M HZ. . . S ř tBAT TCRES iNC Period! Not plus or minus. Aeronautical ° BOX 287 BtlLPORT NEW YORK 11713 radio works on much closer tolerance be considered basic, but it is all relative, resistance. Keep the load, and mater, on than we do. Thus, being on 75.640 MHz we don’t all have the same training and for about 30 seconds and look for any puts you 640 KHz away. And as you've experience. Whal some of us take for large voltage drop. If you care to review been reading all that stuff about channel granted can be the w orld’s greatest the whole process, my December ’82 width, etc., that has appeared in the mystery to someone else . . . just take a column covered it in detail. model press since the advent of the new look at the next beginner with his first Remember, however, that while this frequencies, you know that we have airplane who comes out to your field. is a worthwhile test, it does not actually been flying with 80 KHz spacing bet ween When WCN and I first discussed my tell you the capacity of the batteries, our own frequencies. So you know, that doing this column, we both knew that which, being old, may have deteriorated if you can fly on 72.080 with another the engineers and technicians don't somewhat. You can have one low- transmitter on 72.160. 80 KHz away, need it. or me. We are attempting a two­ capacity cell that this test might not show without interference, a transmitter 640 fold purpose, one being to help those up. yet which will do you in long before KHz away certainly can't bother you. who wish to learn more about the you would be expecting to run out of Right? insides of our control system and as you electrons. You should test the capacity Right . . . but there is more to it than mentioned, to save a buck here and with one of the instruments available for that. The marker beacon transmitters, as there, and secondly, to provide a place that purpose . . . someone in your club there are two of them, are located in line lor an exchange of ideas, such as those or group is bound to have one. The Ace with the ILS runway, at certain distances received in the past from Fritz Mueller. Digi-Pace is especially recommended as from the approach end. Their function is Floyd Carter, and others. I am a great it will accept the six-volt battery in your to provide an indication to the pilot of one for not feeding airplanes to the transmitter; not all of them do. There is a an inbound airplane making an instru­ ground needlessly, and if I can help save not-so-sophisticated cheaper one avail­ ment approach that he is certain dis­ one now and then, the whole thing is able from RAM. called a Simple Cycler, tances from the end of the runway. The worth it. which works well, though it is designed ILS Approach Chart for that particular Which finally gets us to your questions for 9.6 volt transmitters. field will tell him the altitude that he . . . still on the subject of saving airplanes Regarding 72.400 (and the rest of our should be at to maintain the proper . . . checking those all-important bat­ original seven frequencies): it will be descent to the runway. Now these trans­ teries. Yes, your test circuit is correct, legal until January 1988. so for now. relax mitters are extremely directive. The and to add a load, you need merely to and enjoy! In fact, you can even add receiver in the aircraft, which is tuned connect a resistor across the battery another airborne or two, there are a exactly to 75 MHz and thus better able to leads while you are measuring the volt­ number to chose from. I have flown receive it than you on 75.640, will receive age. The resistor should load the battery Novak Electronics equipment extensive­ a signal only when the aircraft is directly down to about half capacity (275 mils in ly and can unreservedly recommend it. overhead, and not anywhere else, even the case of your 550’s), but it is not all that There is a new four-channel, four-servo in the vicinity of the airport. critical. You can use two Radio Shack airborne for $175 that is certainly attrac­ So you will now see why I said that you 271-080.10-ohm, 2-watt resistorsinseries tive. If you care to roll your own. you had to have a badly mistuned receiver, as a load for both your receiver and can't go wrong with Ace R/C Silver and be flying in the wrong place. . . right transmitter battery. If you had a 9.6-volt Seven components. The Novak equip­ off the approach end of a runway, to be transmitter, you should use 40 ohms ment would be adjusted to your trans­ hit by a marker beacon. 86 MODEL BUILDER Lei’s look at the car and boat frequen­ cies now, as under the new law they are all going to 75 MHz frequencies. Still no problem; the nearest one is 75.430 MHz, or 430 KHz away from the marker beacon frequency. And though I know that John Brodbeck’s K & B .35cc Outboards are Yes, the DRIVER PANEL provides complete still setting records, I don’t believe that control to light all glow plugs, single or twin even the best one can get that tunnel In one neat package { no tangled wires ). And hull up to 800 feet out over the approach you can count on the proven "DRIVER ACTION end of Zero Eight! to get you going fast I I further wanted to impress you with - 100% Solid State Circuitry my knowledge of the subject by telling (runs cool & efficient - battery last A last) you when marker beacons came into - Hot plugs, even on weak bat. common use, or some other historical (a fantastic foature unmatched by others) fact,but my library failed me. Would you - Large high quality meter settle for the fact that marker beacon in ( tells exact condition of your glow plug ) Spanish is “ radiobaliza” ? - On Off & Fuel pump Switches' BEWARE THE BLACK DEATH! ( practical convenience where It counts ) Seems that not having enough with AIDS, herpes, and Legionnaire’s Disease $42·50 Kit Λ to contend with, we R/C’ers are subject to yet another rare and uncommon ^ 5 0 ·® ® Assent. disease. Like the aforementioned, we’re not sure of either the cause, or the cure. Ste ΌεαΙει " P in t And it can be fatal! While I don’t have ____ DRIVER PANEL Kittsl at $42.50 each. the exact statistics, I’m sure that more Please send: than one R/C airplane was a victim just ____ DRIVER PANEL (si Assembled at $50 00 each. last weekend, and who knows how large the total is. POSTPAID Name I’m talking about some sort of corro­ Add $2.00 for C.O.D. Address sion that attacks battery wires! I don’t know what it is, and while I have read CL Res. add sales tax. City. other non-R/C literature dealing with ^Complete with all banana plugs, w ire. case and hardware ^^«isfactioi^or^efum ^ Ni-Cd battery powered equipment in which this phnomena is mentioned. I have yet to find an explanation. This Northeast Engineering glitch from outer space, or whatever, P.O. Box 6201F , Bridgeport, Ct. 06606 makes its presence known in the form of a silvery black coating, only on the track of, aren’t there? Some of the man­ 0 — Black negative wire, and only from the battery ufacturers are being conspicuously 1 — Brown to the first connection. I have never seen quiet about the whole thing, making no 2 — Red it on the other side of a switch, for in­ mention of or furnishing the proper fre­ 3 — Orange stance. or on any other negative lead quency flag with their equipment. Not 4 — Yellow past a circuit board. It is undoubtedly so in the case of Ace K/C. who was there 5 — Green some type of chemical action involving when the gun went off with a complete 6 — Blue the negatively charged electrons set of accessories to help us cope with 7 — Yellow present. This action seems to start at the the new frequencies, and with each 8 — Gray battery and will eventually travel the other! 9 — White III whole length of the wire, coat every The first thing required is that old fre­ In this case, the number 9 is not used, strand of it. to wherever the wire termi­ quency flag, now having to be not only though white is not used to represent it. nates. It will eventually form a hard coat­ the right colors, but also a distinctive It is still however, being used to indicate ing all over the wire and both connec­ shape, and having some numbers on it. the 72 MHz band, in the White/And — tions. and eventually raise the resistance To refresh the memory, the entire color/ combinations previously used. Anyway. of the wire. It is impossible to clean off. number scheme is based on the elec­ Ace R/C has a whole series of appropri­ and a wire so affected will no longer tronic component code, in which a ately shaped, colored, and numbered accept solder. If this isn't enough, it color represents a number, thusly; flags, which you can purchase separately. makes the wire weaker, and brittle, thus more susceptible to breakage. As a matter of interest, it would be nice to know what causes it. but it is TAKE IT OFF WITH S P E E D S T IX more important to know that it exists, and could happen to you. Look for any DISPOSABLE SANDING TOOLS chemical deposits on the negative ter­ USE WET OR DRY minals of all batteries when you have 3 SANDING GRADES 100- 120- 180 occasion to be inside the transmitter or the battery case. If in doubt, remove, REGULAR SPEED STIX cut, and strip the end of a wire, and if the A * $4.85 9 STIX (1/4-3/8-1/2 diameter) interior is not clean and shiny, replace the whole length . .. before you have to ^ MINI SPEED STIX replace an airplane. B * $2.95 6 STIX (1/8-3/16-1/4 diameter) FREQUENCY IDENTIFICATION NEW! FLAT STIX AND CONTROL C * $3.75 6 Wedge STIX (3/4-1/2-14 width) PRECISION SANDING TOOLS The newly assigned R/C frequencies 2930 SKYVIEW AVENUE have sure caused some logistics prob­ ORDER TODAY!! POSTPAID!! PUEBLO. CO 81008 lems for us . .. there sure are a lot of (DEALER INQUIRIES INVITED) Evenings call (303) 542-6200 numbers, colors and channels to keep

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELE ’EM MODEL BUILDER SENT YOU! 87 ψ! “SERIES 50” Old Timer R/C STRUCK'S 1940 for those who care to try it. I have bread-boarded one, and it does make 1939 „ ^ enough noise to be heard for at least a AIR TRAILS * NEW RULER couple of hundred feet. Partial Kit SPORTSTER C o $39.95 Circuitwise, the lost model locater is a $33.00 transistor which is normally kept in the 1938 .29 to .36 1.901 Clow off position by the servo signal present S p a n , 835 Sq "C" or "D" Ignition in an unused channel of the receiver. It In addition to the Just Released New Ruler, the POWERHOUSE following partial kits are also available. in turn controls a small buzzer, which is a 9 $39.95 The 1936 FLYING QUAKER (Megow's) 89” $21.50 normally silent, except when you turn 50" SPAN 380 SQ. IN. 32-38 OZ.' The 1937 QUAKER FLASH (Megow's) 67"span $17.50 T h e 1937 "L O N G " C A B IN . 78" span $20.00 off the transmitter. From here on, its use 3 CHANNEL, .09 TO 15 POWER T h e 1937 A IR C H IE F (Id e a l's ). 61" span $20.00 is obvious .. . when you are down in the "SERIES 50" Kils are Full Kits wltn Machine Cut 6 Partial kits are Rib, Tip, and Former kits, mey Sanded Parts, Formed Landing Cear. Partial R/C feature Machine Cut and Sanded Parts. Full Size boonies,you turn off and listencarefully. Hardware. Detailed Full Size Plans, and Printed Construction Plans, and building notes. They Obviously, the whole thing depends on Assembly Instructions. [2 or 3 Ch R/C Cear Reqd. | meet SAM FF and R /C requirem ents. your crash not being caused by a com­ COMINC 5*1" Quaker; *18" Flybaby; 98” Miss America C O M IN G : 120" K G -2; 89" Miss Deleware. 96" Lanzo RB Cleveland Viking; SO" Cleveland Cloudster. pletely dead battery, or having spread At your Dealer or your airborne system all over the woods. t m f f m m m M ®®æ a/'S©rø!ftH3 add $2.00 per order,o r d e rJ for UPS. Ca. Res It’ll help sometimes, and as a bonus, you ______P O Box #9. M idw ay C ity . Ca 9?6 5 5 add 61 for Ta x■ 5 á can use it to range check; when you have walked to the end of your radio They are available in sets; 50L930 at range, the buzzer will sound off and let $4.98 for the New Aircraft Set, 11 pieces, you know. and 50L940 for the old 72 MHz set, 7 There are numerous small 6-volt DC pieces, at $2.98. Individual stickers, in buzzers to be had. Radio Shack has sets of two, are 98

88 MODEL BUILDER races, possibly for the first whole season, it is really hard to go out and blow anybody away. You have to learn the lines, tire selection, clutch setup, how wings work, motor tuning, gearing, brake settings, and how to prep the car SIZES! for reliability. The RC150 has done this Competition-Proven for John, he can now get the car around in very good shape and do it consistently. Now John is looking very closely at the OCTURA Dirty Racing Team’s Associated RC500 and Delta Eagle suspension cars; I just know he is going to be upgrading his X-SER IES - racing equipment next year. While I haven’t told him so, I have been watch­ ing him push that solid-axle RC150 to PROPELLERS some very respectable finishes this year. When he gets a new car, that high-zoot number (whatever it is), then what he X-tra SpeedLX-tra Performance! has learned this year will make him very competitive next year. He simply will not FOR PERFORMANCE YOU’LL BE PROUD OF... believe how easy the new cars are to These, as all Octura Propellers, meet the most exact­ drive fast!! ing requirements. Available now in beryllium copper. The power source in any 1/8 car can Fit 3/16" shaft. Check your local progressive hobby make or break you at the track. The K&B shop. RECOMMENDED 21 has been just super. It is stock, all we X 440/3 3.5 OUTRIGGER X445 APPLICATIONS did was pull off the back door for a quick X447 7.5 OUTBOARD peek inside and installed it in the car, 75 DEEP VEE X450 where it has been ever since. Power and X455 * mileage have never been a problem, 7.5 OUTRIGGER X 455/3 65 SCALE HYDRO most importantly, the motor is still fresh X457 65 DEEP VEE after all the thrashing it has endured. X460 This next winter we will check the rod X462 > 65 OUTRIGGER . ei 00 for ♦X467 : go DEEP VEE for wear, and with no more main­ A P— tenance than possibly a new rod, the ‘7 3 " indicates 3-Btaded Propeller motor will be ready to go into a new car. cala list to: Incidentally, my boy Josh is presently racing our RC500 (getting around quite OCTURA MODELS, INC. 735, „. „ S M * , , . ,l μ » quickly with it!), and it is powered by the latest K&B 21, the “ square head’’ ver­ sion. This new K&B is even better. Josh is you'll - remember - next - time, coupled using a .161 insert in the Delta carb (yes, with his sense of independence, he n . , MINI-ANTIC we know that is a teeny bore size), but he generally gets it set right. I rO C iO r v6 s c a le kit isn’t giving up anything on the straights The trick is that with everything in the to anyone but the top four or five cars fuel feed system and in the motor right, ... on only 12% fuel. With a .200 insert needle settings are simply a matter of that motor will put the hammer on setting the motor rich on top and everybody! More on the “ square head’’ bottom, slowly sneaking up on the K&B when we do a follow-up, season- "race” setting a click or two at a time. of-racing-later article on both the Asso­ The motor will at least run, even if it is ciated RC500 and Delta Eagle. very rich. It might cough, hesitate and The radio system in the RC150 has burble like crazy, but it will run and run given us a couple of little problems, but reliably, if not quickly. When too lean, it it is old and thoroughly beat-up. I used BEAUTIFUL COMPOSITE MODEL OF THE 1 9 1 0 NIEUPORT won't do anything right and it is almost & 1 9 1 3 BLÉRIOT. WITH VERY STABLE FLYING QUALITIES. this same radio system in my first 1/8 car, impossible to set a motor properly from 5 6 IN. WINGSPAN. 4 . 5 LBS . USING .1 9 ENGINES AND UP an MRP pan car and that was (gasp) six the "too lean” side. Always start from ► COMPLETE KIT. LESS WHEELS. ENCINE ft PROP Í 8 6 . 0 0 + 5 H iP ^ years ago. That car and radio was actively too rich. A trick I use to ensure good (contains some 540 parts and a vary detailed construction manual) raced every year, John ran it in '82, lifting needle settings is to always open the PROCTOR, P.O. BOX 1333. LA JOLLA. CA. 92038 For additional information, call (714)278-9000, or the radio out to install it in the RC150. high speed and low speed a little after write. For a complete 40 page catalog, send $ 2.00. Frankly, the JoMac system for 1/8 cars each race day. At the next race the was never widely used. But the DRT sure weather is usually different, requiring a angled to get the wheel up high enough as hell got a ton of racing out of this one! different setting. By opening the needles to contact the flywheel on the car. The one consistent problem we did beforehand, my chances of hitting the Switches also came from Delta; they have with this race car was needle track lean are very remote, and I can use stock a number which is very reliable, settings, and this is to be expected. the first practice session to dial in the and the spring under the button in the Dialing the needles is not difficult at all, chassis, fiddling with needles at my switch is strong enough to support the but novice 1/8 racers all tend to run the convenience as opposed to spending rear of the car without activating the motor too lean on top and bottom. half the practice session just trying to get switch. With the car in place on the About once a race day John will have in a full lap. board it can be worked on, yet all you flame-out problems; it has gotten to the Helping a lot in getting the car to the have to do is push on the back of the car point where I don't even listen to the track is a starting board that John to get the starter motor turning. That motor when he says he is having trouble whittled out of one-half-inch ply. It is isn’t an adequate description of the with it. I just tell him to richen up the rather large and klunky looking, but starting board, I know, I’m just throwing mixture, he asks which one, and I tell effective and easy to use. A Pylon it in hoping that any new racers (and a him both of them! With my preferred (Sullivan) starter mounts underneath the few experienced ones) will take the approach of I’ll - give - a - little - advice - top plate of the board, it is fitted with a time to build a proper starting board, but - figure - it - out - for - yourself - so - Delta molded starting wheel, and it is they make things so much easier on race

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 89 Eliminates GLITCH problems associated with long servo leads. AMA Nats . . . Continued from page 2 3

Eliminates need for voltage robbing chokes and other devices with Also happened to be present for an leads over 15" long k ' incident that put me back about 44 • Modern CMOS IC technology years. While timing a Wakefield flight Uses less than 0.5 milliamps at 4 8 volts for Ray Factor, of East Hartford, Con­ Power lines are capacitor filtered necticut, I watched the ship circle in a Available in 4 versions with connector installed: gradual descent to the ground under­ r$10.95- Single Channel, single servo drive (Single) GS-1 power. As it took only about 11 seconds, 512.95- Single Channel, two servo drive (Wye) GS-1 Y it was marked as an attempt, and we 514.95- Two Channel, two independent servo drive (Twin) GS-2 went over to examine the model. Not EMS 517.95- Two Channel, two servos per channel drive (Twin Wye) GS-2Y able to mind my own business, I asked ClfCTBOMC MCO«l W C M S • Overall lead length is approximately 6" to 8" about the glide trim. 1 * · Modeler must furnish own longer extensions as required______"I just finished it last night, but the test S nprifv Rarlin $1.00ShippingandHandlingonPre-Paidorders.add glides looked fine," Ray answered. μ y 6% for California residents. Mastercharge and Visa. "Why not take out a little down- 6175 PALO ALTO DR.. ANAHEIM, CALIF. 92807 (714) 637-2161 thrust," I volunteered. “ OK,” says Ray, and he crammed a piece of dried grass between the nose- So, other than a race or two with block and fuselage, on the bottom edge. NO TIME TO BUILD? “ This w on’t count, I just want to check TRY OUR OLD TIME" F/F-R/C AIRCRAFT different rubber, we will finish out this FULLY ASSEMBLED COMPONENTS season with the RC150 in pretty much it out," Ray mumbled, as he heaved the stock condition. The car has served its model into the air. You guessed it. . . His purpose as a vehicle for introduction to wife, Dorie, yelled to Ray to trip the D.T., car racing and has done well for John. but it was too late, and the Wake was in a For the price, it simply cannot be beat. · boomer even before the blades folded. It disappeared from site many minutes later and a "m ile high." (He did get it Peanut...... Continued from page 51 back!) About 44 years ago, this writer was checking out his Wakefield Korda at a IDEAL FOR BEGINNERS 4 EXPERTS exposed fuselage framework before 7 2 " Span — .29 to .40 Engine Sue (Less Wheels) contest in Lancaster, Pennsylvania. Not mounting the thin acetate windshield 2-3 Channel Operation, or F/F satisfied with the kinda awkward right Quality Built Components ol Balsa. Spruce & Ply and windows. Skylight and windshield Formed Spring Steel Landing Gear/Tail Wheel Assembly power turn, I bent the aluminum rudder F U L LY FRAM ED UN COVERED $149.95 trim can be made from narrow strips of A

90 MODEL BUILDER All winch batteries were parallel- wired to a gas-driven field charger, which kept their power pretty well consistent throughout the contest. Of AN ALL-AMERICAN WINNER course, the usual line-crossings and breakages occasionally occurred, but they were quickly cured. RETURNS! Again, we timed quite a few flights, all the same task; seven-minute precision Super Cyclone and spot. On the average, the bigger GR Series soarers seemed to do best, and spoilers Single Ignition Airplane Engine or flaps were a help in hitting the time and spot. Back to Westover in the afternoon, we S U P l R stopped by to watch some Coupe and FAI Power flights in free flight, and then headed for R/C Pattern, where they were actually finishing up, a day ahead, much to the relief of Bob Underwood, the R/C Scale CD, who had too many entries and too little time as originally scheduled. Trophies were awarded on the field, at Site 2, and Ivan Kristensen now Pictured above is the SUPER CYCLONE as it was then, a n d a s i t w i l l believes that you don’t have to be a U.S. b e t o d a y . This ruggedly built champion will soon be available to you citizen to win at the U.S. Nationals! It once again. was nice to see a fair number of young fliers coming up to claim trophies. Our “Super Cyke” reproduction holds to the most exacting standards After a meeting between R/C Pylon, of original detail. Using today’s technology, we will provide you with a R/C Scale, and Nationals officials, it was guaranteed engine; built to perform as only the SUPER CYCLONE decided that because Pattern was fin­ ished, and did not need its 1 p.m. to 8 can Included in the $189.50 purchase price: p.m. time on Friday, that Formula I (Additional S4 00 charge lor postage, handling, and insurance ) would fly all day Friday and finish up, • Run tested SUPER CYCLONE engine • "Original" parts list with numbers instead of flying half a day on Friday and • Ignition coil, high tension lead, m odified Saturday, originally scheduled. This gave condenser, and spark plug* • “Original” display box Scale all day Friday to judge the 96 (!) • “ Original” cowl decals • Warranty card entries (out of the 121 pre-registered), • “Original” owner's manual *lf coil and condenser not required, deduct S5.00 and then all day Saturday and all day Deliveries will begin in the fall of 1983. Your delivery position is Sunday to fly. On Friday, with John Smith covering established by date of order receipt, $75 deposit required with order. Pylon, we first visited the Scale judging area, which was in a grassy court right Order yours today! outside our motel room! What a beauti­ ful array of models! There were nine in Super Cyclone Engines Precision (FAI), 53 in Sport (Sportsman and Expert), and 34 in Giant. After P.0. Box 10658 · Phoenix, AZ 85064 · (602) 274-3375 reviewing all of the models, it came to our mind that there was one element MasterCard and Visa welcome (add 5%) out of many past scale Nationals that was almost completely missing . .. the dar­ N a m e_ ing, outlandish, totally unusual, how- Address could-it-possibly-fly, that-one-l-gotta- see, seemingly impossible scale project. City S ta te. Zip They hardly ever win, if at all, and maybe M/C. Visa #. Exp,. that’s why no one is willing to tackle them any more, but they are memorable. Signature _ Joe M artin's RB-47 in 1962, the tw o B-36s in different scales at the same Nationals in about 1972, the B-24s, the seaplane, but John added wheels to Champs which had taken place only the B-17s. .. Skip Mast’s C-130 is an example operate off the paved runway) where­ week before in Colorado. Of course, of one that is a winner. With enough upon the climb angle becomes nearly 45 that didn’t slow down Sal Taibi, who left bonus points before it even gets off the degrees! Most interesting fact is that his model trailer in Colorado, loaded his ground, it would only have to become the model has been around over 10 old reliable '56 Chevy (over 650,000 airborne to win. However, Skip’s flies years, and has had hundreds of flights, miles on it now!) with the models he well to boot. mostly off of water. needed for the Nats, and continued to The one model we noted in this After devouring an eyeful of the scale show everyone how it’s done! category at Chicopee was John Nicolaci’s models, we headed for Westover and Later we planned to catch the last part PBM-3. AT 1/10 scale, it weighs 38 the free flight area to catch some A Gas, of R/C soaring, only to learn that they pounds, and is powered by two Super P-30, and A/2 towline, plus the always had finished up early! So it was back to Tigre 75s with onboard starters. It is popular unofficial (still?) Old Timer free the free flight area to help with timing carved from foam and the wings and flight competition. Today, unfortunate­ some A Gas and P-30 flights, in a very stab are sheet balsa covered, while the ly, the wind was doing its thing, and strong wind. rest is finished in fiberglass cloth and many were reluctant to risk losing It was hard to believe that we had resin. The takeoff is sensational, as Jato models in the trees or bashing them gone through five days in a row without assist (Estes rocket motors) is fired just as during the launch. Old Timers were also anything worse from the weather than a the plane leaves the ground (it’s a small in number because of the SAM brief thunderstorm and the Friday wind.

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 91 they were quite pleased with the model­ ers in return, so it’s almost a certainty that it will happen again, and hopefully soon. If you attended, and want to come again, or even if you missed this one, but EPOXY RESIN CONTINUOUS FILAMENT want to have another opportunity to compete in Chicopee, write to Col. Roy • &26x4.6»3.7x3. · 10x8.10x7.11*6 · · GIANT SIZES E. Ayers, Commanding Officer, West- 7x4.7x63 »4.95 3 BLADE $14.96 19 Χβ. 18X10 » 34.9b • 9x4 8x6 8x8 · 12.6x6 M il it u y over Air Force Base, M A 01022, and tell LEET Of WIGHT HAND. 20X8.20X10 »38.96 him about it! 9x4.9x6.9x7 »7.96 4 81AÖE *24.95 22X8. 22X10 »49.96 VORTEX TIPS AVAIL • 10X4.10x6.10x8. · PITCH GAUGE · I/2A »nd giant *i« $ It's impossible for one person, or even 2 fo 3 WEEK DELIVERY 11x8.11x7.12x4. up 10 12in »29.95 stra ig h t i ip and a group, to completely cover all aspects 12x6 »9.96 right hand only of such a huge undertaking as a National 0 ·«1 ·τ · Invited championships. If you feel, as you read this closing paragraph, that there must 1-303*469-3928 for M.C./vtSAACOO or malt C»*h,Chock or M.O. to have been more to it than was reported 109 Emerald St. 9rooinflold,Co. 80020 herein, you’re absolutely right. As we returned to the relatively empty head­ quarters motel on Sunday evening, and thought back on the whole week, there unbearable. R/C Scale did not pay the was a feeling of frustration over the piper for the good weather. Ed Izzo’s many things missed; the events not connections must go way beyond the seen, the incidences that we heard Pentagon! about when we were somewhere else, R/C and C/L Scale, plus the Air Force the model aircraft of which we didn’t get demonstrations made up the program a full description, some of the exciting BEECHCRAFT SKIPPER: Quarter-Scale. 90" wingspan, 1,200 sq. in. area, .90 or for Sunday, and it was a very pleasant photos we just missed. . . But on the larger engines. Plans, $18.50 closing to the best Nationals we've seen other hand, we’re glad that we’re not Other plans: since the Navy-supported Nationals in burdened with the responsibility of BEECHCRAFT BARON MODEL 58: 2V? Scaie-85 W illow Grove, Pennsylvania in 1969. providing the only report to the model­ wingspan-1000 sq m (3) 3 x6 sheets S15 00 ing public. There will be other stories BeechcraM Fm Insignia S2 00 Going back to those earlier Navy- BEECHCRAFT BONANZA A36: 2H Scale-86 sponsored Nationals, and right on to the and photos in other publications, and wingspan-1300 sq m (3) 3 x6v? sheets $17 50 present, R/C and C/L Scale are always hopefully written with other points of Add $2.00 postage inside U.S. & Canada the last events to be flown. Logically, view, and photographed from other Include $2.00 for plan rolled In tube Overseas orders add $10.00 postage they are the most spectator-pleasing angles, so that when they’re all put Alabam a residents add 6% sales tax events (pylon is great too, but for safety, together, those who did not attend will BUD CADDELL is kept too far away from thespectators), have at least some idea of what this great 1525 Badham Dr.. Dept. M . B irm ingham . AL 35216 although we think C/L combat rates multi-ring circus of modeling was all 205 822-4312 high in excitement, except for the long about. ______DEALER INQUIRIES INVITED pauses between actual combats. See you next year in Reno, Nevada?· and by now, we figured that R/C Scale Anyway, as logical as it is to include was the event that would have to pay for the scale events with the air-show it all. But here came Saturday, and a clear activities on Saturday and Sunday, when Fuel Lines. . . Continued from page 36 day with mild wind that was kinda the majority of the general public is in angled to the runway, but not really that attendance, it is kinda frustrating to the sheet includes a list of suggested tem­ bad. Of course, most of the scale stuff contestants. By the time the competition peratures for various coverings. was tail-dragger type, so quite a few is over, and the scores have been tallied Wirh respect to engines, it can be a fliers followed their models to the and checked, most of the contestants very useful gauge for tweeking the center of the runway to assure them­ and all of the spectators are gone. From a carburetor needle valve. An engine selves of a straight takeoff. huge crowd of spectators, contestants, that’s too lean will get very hot. Coverite With two sites operating two lines hot dog and beer stands, campers, suggests you don't exceed 400° Fahren­ each, the air was kinda busy, and there motor homes, tents, etc., it comes down heit. As a practical matter, you may not were a few breathtaking near misses, but to a bedraggled few contestants who are want to use it each and every time you no disasters. It was spooky to watch packing their gear while ducking work­ fire up an engine. Nevertheless, it ducted-fan jet models streaking past big, ers who are taking down lines, removing certainly would be prudent to use it in lumbering, Giant scale Sopwith Pups, tables, folding chairs, collecting trash, establishing a basic needle setting for and World War II birds dog-fighting and driving off over the horizon. For the atmospheric conditions of the day. with Piper Cubs and Waco biplanes, but their months of research, material col­ At a suggested, quite reasonable retail that’s R/C scale, and as always, it’s a lecting, building, finishing, testing, price of $5.95, it could be well worth tremendous crowd-pleaser. traveling, and tensely flying before giving it a try. If you’re extra suspicious Again we missed R/C soaring, as thousands of spectators and their peers, (or cheap), talk your flying buddy into this was the day for Sport Scale Sail­ the winners receive their trophies in getting one, and try his first. plane, and as only seven out of the pre­ front of ... the winners. Everyone’s THE MORGUE AGAIN registered 12 showed up, it was over too gone, the place is deserted and empty. There are two other photographs soon for us to catch it. Instead, we It’s almost a hollow victory. included with this column. They show headed for East Longmeadow, Massa­ But we’re not complaining that there damaged parts that hopefully should chusetts, near Springfield, and the has been an injustice. It seems to be a serve as reminders of how it’s possible to Pioneer Valley R/C Club's field to catch fact of life. How can this group of restyle the efforts of engine manufac­ some R/C Old Timer activity. We arrived modelers have an awards banquet like turers. in time to see a few unofficial flights and the soaring and helicopter groups? It’s The first one is a rather bent wrist pin. the trophy presentations! Our pylon Sunday, the Nationals is over, and How did it happen? Well, on disassem­ man, John Smith, and his wife, Jean, ran everyone is on their way home to bly of the engine, there was no question the events. Some contrast to the mad the jobs they must resume on Monday. that something blocked the upward dash and noise of pylon. Do you have an answer? travel of the piston and something else Sunday was another mild day with The Air Force and the townsof Chico- also kept trying to push it up. The odds light wind and light overcast which ee and Springfield were tremendous heavily favor a hydraulic lock as the prevented the heat from becoming osts for this Nationals, and apparently, blocker. It's also quite likely that a 92 MODEL BUILDER powerful electric starter was doing the pushing. Something had to give. In this case the wrist pin bent. As you can see, the other basket case is a piston with a caved-in crown. This time it wasn't a hydraulic lock. The diagnosis is pistonium necrosis induced by O D ’ing on nitro. You may have heard the adage, S W I N G E E ' "If some nitro is good, more is better, and too much is just right." Wrong! A New Concept For Model Builders Guys, too much of anything can ruin your whole day. In this case, the failure occurred right in the middle of a tight combat match. About a second later the opponent zeroed-in for the coup de grace. During the post mortem, the losing flyer had a few loud expletives about the engine In-line control device has built-in for sample, technical information manufacturer. bellcrank, controlhorn and hinge. and price list. Include $3.50 for Guys, these are not isolated happen­ Made o f D elrin — the space age postage and handling. ings, and too often we’re prone to material that is impervious to tempera­ Wholesalers/dealers welcome! question why they don’t build tougher ture changes and age b rittlin g . The testing period is over ... the engines. Well, the manufacturer’s can! For more information see your local SWINGEE is now available for you! But, and this is extremely important to hobby shop or write direct to ScanAm remember, only at the sacrifice of performance. Consider the example of the piston. If the crown had been thicker, scan am it would have been stronger. The piston WBNAJIONAl TRA094G ΚΧΧΚΌβΑΠΟ also would have been heavier. More 1000 Quail, Suite 290, Newport Beach, CA 92660 · 714/833-9098 mass means less acceleration fo r a given force. The most basic equation of wouldn’t be days when racing takes up 10 full hours as it did for a couple of days nature, F=MA, is relentlessly valid. High ” ANOTHER GREAT WINDER” performance always requires com­ at "B.C. ’83.” promise. Need further convincing? just Although I personally didn’t win IMPROVED anything in the racing, I did win a 3.5 watch Stock Car or Formula 1 racing on SMOOTHER TV. I can’t ever remember watching a engine in a drawing, my son Paul won his race that didn’t include several blown first trophy at a national contest. Driving List - $64.95 engines. Theirs are also a heck of lot very consistently with his 3.5 powered Plus shipping more expensive. Ward Marine Offshore, Paul managed a I guess that might almost sound as sixth place in the A Monoplane Class. though I’m advocating a "be-kind- For him, this was a very rewarding to-engine-manufacturers week.” Not accomplishment. It also made Paul's JOHN MORRILLS "SIDEWINDER" daddy really proud. I can still remember exactly, but it would be nice if we Precision Built Heavy Duty Winder! recognized that we cause a lot of engine most vividly the first trophies I won back Turn Counter kit- $18.00 problems. in 1967 at the International Model Power $1.00 FOR CATALOG ANNIVERSARY TIME AGAIN Boat Association's national race in San Happy fifth anniversary Bill. The Francisco. I won mine by being the only 4IM CROCKET REPLICAS second word of that latest sentence just boat in the class. Paul won his by com­ P.0 BOX 12600 reminded me of something. peting against 40 other boats. FRESNO. CA 93778 Guys, take care. · Winning at a national boat race takes a combination of skill, preparation, and stars for my "Snivelers Racing Team” some amount of luck. It is unfortunate badge. when luck becomes more of a deter­ "B.C. '83” was my first experience R/C Boats .... Continued from page 47 mining factor than the other two. This with having a computer handle the happened on a couple of occasions. I scoring and tabulations. I must admit I tunnel is a unique class and the amount saw a reader board the other day with was impressed. I don’t know how much of entries it generates proves it is very this message: "Luck is a byproduct of work goes into writing a program which popular. However, I question whether hard work.” There’s some amount of allows a computer to furnish the in­ we need separate classes for outboard truth to that statement. Anyone who formation, but those efforts certainly hydroplane and outboard monoplane. wins a national championship works for paid dividends during the scoring of Another question that needs con­ it. events. After the completion of a class, sideration is running the same hull and The weather certainly played an im­ the results were posted showing points engine in two different heat racing portant part in determining the out­ and times. Each class raced four times events. There were numerous occasions come of a couple of classes. When it and the results were updated very where Sport 40 boats raced in 40 hydro, came time to race the small A Tunnels quickly. We are definitely into the and outboard powered boats raced both and A Hydros, the wind managed to computer age in model boating. inboard and outboard classes. If you make water conditions very unsuitable It is unfortunate that “ B.C. ’83" was build a 40 outrigger you can only race it for these classes. There were occasions basically a West Coast event. It is now in 40 hydro class. However, a Sport 40 when no boats were able to complete almost cost prohibitive to travel from can qualify in two classes. I can under­ the required five laps. I suppose this one coast to another to participate in stand allowing a boat to enter both deep might be considered "sniveling” by model boat racing. Next year the vee enduro and monoplane heat racing some of the participants because every­ NAMBA national event moves to New because the two events are different. one had to run under similar conditions. Jersey. It will almost certainly be an East Disallowing doubling of classes would It is my contention that national cham­ Coast event. I sincerely hope that probably cut down participation in pionships should be decided by racing NAMBA members of the East Coast some events. This would help cut down and not just surviving. I’ll know that this support the event. An opportunity to a day’s racing schedule so that there amounts to “ sniveling” if I receive some attend a national event of this caliber

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL ’EM MODEL BUILDER SENT YOU! 93 2. Bob Atchley ALL NEW! 3. Ed Fisher CUSTOM SCHNEURLE. 4. Chuck McGaughy COX 009 ENGINES! C MONOPLANE ☆ Racing A Stunt versions with special 1. Ed Fisher hard chrome A honing technology. 2. Rich Ffsh Also, 3. Jim Andrego V r ů N É á n Complete inventory of individual stock and custom parts for Cox A MONOPLANE T t £ S £ A R C N T.D. 020, 049, 051 A 09 engines. Competition parts A accessories for 1. Bill Hornell Combat, Free Fit., C/L A R/C Racing, 2. Bev Power BUILD YOUR Speed, Stunt A Team Race. 3. Leo Dreith Exclusive distributor for the 4. Don Donikowski OWN ROCKET Nelson 15 engine A parts. 5. Ron Erickson For detailed catalog, send 50 cents to: 6. Paul Dunlap MOTORS! Kustom Kraftsmanship, Box 2699 7. Steve Brammel Laguna Hills, CA 92653 WE CAN SHOW YOU HOW! Telephone: (714) 830-5162 A OPC TUNNEL • Our truly magnificent 1. Rod Geraghty THUNDERBOLT engine is TWICE C DEEP VEE/OFFSHORE 2. Dennis Caines the size of a commercially made Τ ' engine and develops 1. Cathie Galbraith 3. Frank Ward OVER 40 POUNDS OF THRUSTI 2. Robert Holland 4. Jack Oxley > With our literature and 5. Mike Wight some simple tools that you 3. Graham Swain make yoursell you can 6. Don Donikowski build a DOZEN of them in an BEST OF SCALE evening for LESS THAN 50c SPORT 40 each Brian Dallas’ "Sea Sweep” • We offer plans for FIFTEEN other rocket engines Division II TOO! All can be built by you in your own garage or workshop for 1/5 to 1/10 Ihe cost of the B OUTBOARD MONOPLANE 1. Ed Fisher commercially marketed motors. 2. Rich Fish • INTERESTED? Just send us S2.00 and we ll mail 1. Cathie Galbraith 3. John Hruby you our brochure along with a WORKING SAMPLE 2. Rich Fish 4. Vic Drew of an electric igniter that YOU CAN MAKE YOUR­ SELF from materials you'll find around the house. 3. Jack Garcia TELL YOUR FRIENDS ABOUT USI We re the 00 IT TEAM MARATHON YOURSELF ROCKET people. R/C UNLIMITED 1. Judy Prigley & Bev Power Write to: Department MB 1. Pioneer Research. 11620 Hitching St. Sunnymead. CA 92388. First Consolation 2. Joe Monohan & Jack Garcia 1. Bev Power 3. Steve Bremmel & Rich Fish 2. Greg Weast 3. Rich Bizzier B HYDROPLANE Final Heat — The B.C. Cup only comes around a few times. 1. Ed Fisher 1. Al Williamson 2. Joe Bruzzese ■IAW ARD WINNERS AT “B.C. ’83” 2. Doug Tomilson 3. Jack Oxley 3. Ed Fisher 4. Steve Rowe A DEEP VEE/OFFSHORE BEST OF SCALE 5. Al Williamson 1. Ed Fisher 6. Ron Neidigh Bob Bracket’s "Atlas Van Lines” 2. Howard Power 7. Chuck McGaughy 3. Wally Stewart SPORT 40 B OPC TUNNEL 4. Mike Wight Division I 1. Jack Oxley 1. Don Tippin B DEEP VEE/OFFSHORE 2. Joe Monohan 2. Ron Neidigh 3. Tony Bellizzi 1. Bob Schliemer 3. Chuck McGaughy 4. Bill Hornell 2. Cecil Reynolds A HYDRO 5. Jack Garcia 3. Judy Prigley 4. Mike Clerc 1. Wally Stewart X MONOPLANE 1. Robert Holland 2. Bev Power 3. Jim Andrego JOHN POND B MONOPLANE 1. Robert Holland Old Time Plan Service 2. Ed Fisher 3. Bev Power The largest selection of plans in the world at the most 4. Joe Monohan reasonable prices. Each list $1.00 5. Bill Hornell All 4 for $3.00 6. Bob Schleimer No. 13 OLD TIMER F/F GAS C HYDROPLANE No. 13 OLD TIMER RUBBER/TOWLINE 1. Bill Hornell No. 13 OLD TIMER FLYING SCALE A through K 2. Howard Power No. 13 OLD TIMER FLYING SCALE L through Z 3. Ed Fisher New plans prices effective Nov., 1982 - Nov., 1983 A OUTBOARD HYDROPLANE P. O. Box 3215 1. Richard Hazelwood San Jose, Calif. 95156 2. Rick Grim Phone (408) 292-3382 3. Ed Fisher 94 MODEL BUILDER X HYDROPLANE 1. Cecil Reynolds 2. Jack Oxley 3. Howard Power A OUTBOARD MONOPLANE 1. Judy Hazelwood 2. Rich Hazelwood FANTASTIC 3. Al Williamson QUICK CHANGE NATIONAL TEAM CHAMPIONS — POWER LAUNCH SYSTEM 8 oť U.S. Team (For All Sailplanes) 1. Bev Power 2. Howard Power 3. Cecil Reynolds 4. Bill Prigley 5. Judy Prigley SKY HOOK 6. Ron Neidigh 7. Jim Andrego 8. Gayle Andrego * RUBBER BAND MOUNTED IN * WEIGHS (2 oz.). ASSEMBLES SECS. UNDER ANY WING IN MINUTES. KID BOATERS 1. Ricky Fish * MOUNTS AS PULLER OR PUSHER * MADE OF HARD WOOD & PLY * HANDLES .049-.09 ★ (INTRO) SPECIAL! PARTIAL PEANUT PLAN DEALER INQUIRIES INVITED $7.95 (+ 75c P & H) LIST . . . most plans are available by simply purchasing the back-issue in P.O. BOX 397, LAMBERTVILLE, NJ 08530-0397 B which they appeared. The issue date is shown in the list. If the issue is still CLEVELAND QUALITY PLANS FREE ■ " Τ ' available, you must purchase the issue to i . Brti in lh# Business'" Reel collectors items "since Your first add FREE with sub­ obtain the plan. Back issues sell for $2 «919 " World s greofest trwe-scole voriety— MOO (up through December '80), or $2.50 *^5 3 "^fe !C j^V o lo n s! N®1 hurriedly, sparsely drawn Flying toys scription to the D&L Trading f 4 ^ \ / · /32 to I /4 size authentic flying model layout plans (January '81 and later). If the back-issue lor R/C. C /l, F/F, rubber, »folic For museums and Post. Not only dealing with serious, detail modelers. Once bought, you 11 never buy another brand is sold out, we will send you a print of the Pictorial catolog Si SO Price list section alone 60c Outside USA (except model airplanes but trains too. Peanut plan from that issue (with in­ Con and M et ) by Air $1.00 extro None free. Not sold thru dealers. If you have equipment to sell CLEVELAND MODELS. I0307M Detroit Ave.. Cleveland, Ohio 44102 structions) for $2. All of above prices are or trade or if you have been postpaid. (The p la n -o n ly price is an 4/74 Stinson Trimotor...... Don Butman looking for a particular item increase of the previous price, and 5/74 Miles Sparrowhawk...... Mooney and unable to locate it; why not becomes effective with the publication 6/74 W ickner “ W icko” ...... Mooney of this issue, August 1, 1983.) 7/74 Wittman VW Racer...... Mooney submit your FREE ad and sub­ Issues marked with an asterisk (*) are 8/74 Macchi MB 308 Idro ...... Mooney scribe now. (40 words max., B&W those which are sold out. Until any given 9-10/74 R enardR -17...... Mooney Photo $3.00extra) Subscript­ issue is sold out, you will receive the 11/74 Curtiss Seagull ...... Pres Bruning ion: $13/yr. (10 issues per year) whole magazine. If it's sold out, you will 12/74 Stinson Reliant...... Megow plans receive a copy of the plan and article. 1/75 AVR0 5 3 4 C ...... Mooney D&L TRADING POST You’ll receive a refund if you ordered a 2/75 Avions “ La Cigale” ...... Mooney P.O. Box 7710 $2.50 magazine/plan that is sold out. 3/75 “ Redhead” Racer ...... Ted Vogel Oregon, Ohio 43616 4/75 Robin HR 100 “Tiara” ...... Mooney 5/75 1908 Blériot IV ...... Mooney Γ FREE — : 9-10/71 )odel Mascaret...... Walt Mooney 6/75 B.A.T. Baboon...... Mooney 11/71 Fokker D-VI ...... M o o n e y 7/75 P-47D Thunderbolt .... D. Norman 2/76 Lanier Paraplane ...... Don Brown 12/71 Laird LC-DC ...... M o o n e y 8/75 Castaibert IV ...... Mooney 3/76 Spad XIII ...... John Walker 1/72 Ord-HumeO-H7 ...... M o o n e y 9/75 JodelD. II ...... Rex Powell 4/76 Saab "Safari"...... Monty Groves 2/72 Ford Flivver...... M o o n e y 10/75 1912 Blackburn...... John Blair 5/76 Lockspeiser LDA-01... John Walker 3-4/72 Bucker Jungmann ...... M o o n e y 11/75 OKAY ...... Don Butman 6/76 Hergt Monoplane ...... Mooney 5/72 Fokker V-23 ...... M o o n e y 12/75 Roland D -V III...... Ed Heyn 7/76 Bell A ira b o n ita ...... Mooney 6/72 3 Profiles: D.H. Chipmunk. 1/76 Davis D A -5 A ...... Mooney 8/76 OF Ironsides (homebuilt) . Mooney Yak-18PM. Speed Spitfire . Mooney 8/72 Taylorcraft w/floats ...... M o o n e y DALOTEL - TIPORARE - C.A.P.21 10/72 Bellanca Light Tractor . Don Butman 11/72 Skyraider...... M o o n e y 7 5 0 12/72 Stahlwerk ...... M o o n e y 1/73 Ole Tiger racer ...... M o o n e y 8 2 5 2-3/73 T ravelaire 2000 ...... D o n B utm an 4/73 Evans VP-2 ...... M o o n e y 5/73 Monocoupe 110 S p e c ia l...... M o o n e y /P a rd o e 6/73 Huntington H-12 ...... M o o n e y 7/73 Micropiano Veloz ...... M o o n e y AMA or FAI 8/73 Blériot Canard W.C. Young OUR DESIGNS ARE IN 9/73 Mr. Mulligan ...... H ank N ix o n COMPETITIVE AIRFRAMES THE WINNERS CIRCLE 10/73 Piper Vagabond ...... Mooney for 11/73 Waco SRE .... Mo o n e y PATTERN FLYERS 1978 - 1983 12/73 Speed Spitfire ...... M o o n e y KITS OR AIRFRAMES DICK HANSON MODELS BUILT TO ORDER 1/74 DeHavilland DH-6 ...... M o o n e y 5269 LUCKY CLOVER LANE WRITE OR CALL MURRAY, UTAH 84107 2/74 Culver "Dart" GW Mooney FOR INFORMATION PHONE (801) 261-1402 3/7 4 SE-5 ...... M o o n e y

NOVEMBER 1983 WHEN CONTACTING ADVERTISERS, TELL 'EM MODEL BUILDER SENT YOU! 95 FULL-SIZE PLANS SERVICE

NEW ORDERING INSTRUCTIONS MODELS Price includes 3rd or 4th Class mail. For Airmail or First Class in U.S., add 25% o f total order. For Over­ BUILDER seas Airmail (includes Canada and Mexico), add 50% of total order. Remit by International Money Order All Full Size plans purchased from MODEL BUILDER or U.S. funds on Overseas orders. Postage paid for Magazine include a reprint o f the construction article, if APO and FPO orders. Master Card or VISA accepted. building instructions were part o f the article. Include card number, expiration date, and signature. SEND TO: MODEL BUILDER PLANS SERVICE Add 5% to credit card orders. Minimum order. $5.00 BOX 10335, COSTA MESA, CALIFORNIA 92627-0132 CALIFORNIA RESIDENTS ADD 6% SALES TAX

No. 11831 HAWKER FURY $1350 Να 583-0.T. SHRIMPO S-3 $4.00 No. 12821 GRIFFIN III $375 Classic British biplane in 1/4 scale, for Sharp little 44-1/2" span cabin gas model Mini full-house R/C sport aircraft, only Quadra or equiv. power. Don Prentice. from Nov. 1937 M.A.N. Malcolm Abzug. 28-inch span, .03 power. By Bill Cannon.

No. 11832 FLYING FLEA $4.50 No. 4831 FRANKLIN SPORT $9.00 No. 12822 GRIFFIN VI $4.00 R/C scale model of original HM-14 'Pou Electric powered, 2-inch scale classic bi­ Mini full-house R/C sport aircraft, only de Ciel'. Span 44". By Randy Wrisley. plane for 3-channel radio. Bill GilchrisL 36-inch span, .06 power. By Bill Cannon. No. 1183-0.T. ARUP FLYING WING $2.00 No. 4832 TEMPLETON MK II $1.50 Flying scale rubber powered model from Inexpensive 1/2A ukie sport racer. Build No. 1282 O.T. DALLAIRE SPTSTR $5.00 Sept. '36 M.A.N. By Gordon Englehart two from one 1/4x4 sht. James Martin. Reduced (81-1/2" span) R/C version of popular 9-ft. old-timer. By Ron Nokes. No. 10831 RUSS. MISSILE BOAT $6.00 No. 483-0.T. BELLANCA CARGO $3.50 Missile-firing, scale Russian attack boat, Rubber scale cabin Aircruiser from July O SA class. 2 o r 3-ch. B y W alt M usciano. No. 12823 GOSS. ALBATROSS $2.00 '37 M.A.N., 32" span. By Joseph Kovel. Rubber powered, 34" span model of his­ No. 10832 CITABRIA $5.00 toric, marvpowered plane. Ken Johnson. Semi-scale Citabria for 05 electrics. Span: Να 3831 ELECTRICUS $5.75 54 in., 2,3, or 4-ch. R/C. By Stan Wilson. Electric powered two-meter competition No. 11821 CESSNA CR-3 $2.50 No. 1083-O.T. WEDGY $5.00 sailplane, for 05 motors. By Larry Jolly. Competition rubber scale of little known "A " Nats winner in '40. Wedge-shape fuse, racer, by F.A.C. member Mark Fineman. builds easily, 42 in. span. Leon Shulman. Να 3832 CUTLASS II $3.50 Foam-built flying wing R/C glider, based No. 1182-OT CHAMP STICK MODELS2.50 No. 9831 BUHL AIRSEDAN $4.00 on Navy carrier fighter. By Larry Renger. A 38" span Class C rubber ship from the Unusual 049powered, 36" span, 2-3chan. May '40 issue of A ir Trails, by Al Casano. scale sesquiplane from '28. By Jon McPhee. Να 3833 ARADO Ar 96V $3.00 Rubber scale low wing fighter. Is an ex­ No. 1182-CP FAIRCHILD "24" $5.00 No. 9832 LIL'WHISTLER $5.00 Classic Ranger version, 28" span rubber 05 Electric powered fun plane. Span 42'.' cellent flier. 18" span. By Tom Houle. scale, from Ace Whitman kit. Two sheets. Aerobatic polyhedral design, Larry Jolly. Να 383-0.T. COLIBRI $4.00 No. 10821 KRIER GREAT LAKES $16.95 From Sept. ‘39 M.A.N., a single wheeled, No. 983-0.T. CORONET $5.00 Three-inch scale at its best. For Quadra twin-finned A gas job by Louis Garami. Class A o r B cabin. Span 4 6 .5 ", area 3 0 0 sq. engine. Under 20 lbs. By Larry Scott. in. for .10-size engines. Appeared in 1941. No. 2831 REPUBLIC P-43 $11.00 Contest winning, large scale, pre-WW-ll No. 1082 O.T. NEW RULER $6.00 No. 8831 NORTHROP N9M-A $5.00 fighter. Quadra power. Col. A rt Johnson. One o f best H ank S tru ck gassies. fro m Scale flying wing. Twin 05 elec, power, April/May '40 A.T. Constr. article incl. 4-chan. R/C, 75-in. span. By Bill Young. No. 2832 BUNKER BOAT $6.00 No. 9821 SAND FLI $4.00 No. 883-0.T. FLYING MIDGET $4.00 Scale sea-going fishing trawler, R/C, elec­ Easy built, .049 powered flying boat-like Petrides/Abzug design from August '37 tric power, 36" LOA. Lashek & Smith. 2-ch. R/C sport biplane. By Bob Banka. M.A.N. For Brown Jr. engine. 49" span. No. 283-C.P. COMET MONOPLANE $3.00 No. 9822 ELECTRIC BRIGADIER $4.00 No. 7831 EPI-SUE $3.50 A 36" span rubber cabin ship. One of Early post WW-II Berkeley kit design re­ A sport R/C pusher/canard for .20 to .29 Comet's earliest. By founder Bill Bishop. turns as 05 electric R/C. Mitch Poling. engines and 3-ch. radio. By Dom Apikos. No. 283-0.T. SHARK P-60 $3.00 No. 9823 DAPHNE $2.00 No. 7832 THE BIPE $4.00 Rubber powered version of the famous Sharp little 20" span rubber scale model Hal deBolt’s early post war control line "G-Line" series. 24" span. Vic Stanzel. of a cabin homebuilt. By Perry Peterson. kit bipe for .29 to .60 ignition engines. No. 1831 ULTRA Mk IV $5.75 No. 9824 THE PAWN $2.50 No. 783-0.T. KEANE ACE $Z50 Standard Cl. 3-ch. R/C electric sailplane Contest-proven, foam wing Half-A con­ Rubber scale low wing (22-1/4") light- for geared or direct drive. Mike Charles. trol line combat machine. By Paul Smith. plane fro m June '3 7 FA . Jesse Davidson. No. 1832 FINDRAGGER $350 No. 6831 PLATO $4.00 No. 982-0.T. ARROW $4.50 R/C .049 trainer or .10 powered aerobat A ll sheet balsa, 3-channel R/C flying disk Cl. A '40 Nats winner and record setter. fun ship. Inverted fin. By Bruce Tharpe. for .15-.25 engines. From "60 Am. Mdlr. Pylon. Detailed instructions. Bill Gibson. No. 1833 SICKLE $3.50 No. 8821 BOTHORNE $1.50 No. 683-0.T. CLASS C HAYSEED $6.95 FAI Combat weapon. Curved wing, with Tailless rubber ship for Boston Cabin or Hi-performance Cl. C Cabin ship. Contest cut foam forward section. Steve Fauble. Hawthorne Flying Wing rules. B.Wainfan. winner then, and now. By Carl Hermes.

Να 5831 PLEASER $4.00 No. 183C.P. TAYLORCRAFT $3.00 No. 882-0.T. SNOW WHITE $18.95 Very simple, 46" span sport R/C aircraft Capitol Model Aircraft kit plans for 30" Joe Raspante's famed 8 ft. span Beauty for 05 electric power. By Stan Wilson. rubber scale. Shows ribs and bulkheads. winner. Plans direct from original model.

Να 5832 R/C COMET CLIPPER $5.00 No. 183-0.T. THERMALEER $6.00 No. 7821 MONARCH $5.00 Goldberg's rubber powered Clipper scaled Beautiful streamline Cl. C gas soarer, 76" R/C 6 fl. span swept, flying wing glider to 54", for .09 - .15 R/C. Stu Richmond. Stinson gull type wing. By Dan Veronica. with fuselage, fin/rudder. By Bill Young.

96 MODEL BUILDER No. 7822 WHITEHEAD NO. 21 $4.00 Ν α 1821 Model Builder RAVEN $5.75 No. 7813 GREAT EXPECTATIONS $1.50 Possible pre-Wright Bros, flyer in rubber Latest in a long line of tailless R/C sail­ West Coast/Mooney Bostonian design for F/F, 40" span. It flies! By Ken Johnson. planes, span 110", 2-ch. By Dave Jones. beginner or expert. By Ernie Wrisley. No. 781-O.T. BERRYLOID WINNER $5.00 No. 782-C.P. J-3 CUB $2.00 No. 182-C.P. SUPER G SHARK S3.00 An historic two-line controlled model of Winner of the coveted best finish trophy An official 1942 Piper Aircraft Corp. classic lines; one of many by Vic Stanzel. at the 1938 Nationals. Harold Coovert. plan for 25" span rubber scale model. Να 6811 CURTISS P-40 $10.00 No. 182-0.T. HI-HO $3.50 Exact-outline giant/sport R/C scale for N o . 782-0.T. MOFFETT WINNER $3.50 A 1940 convertible stick/Wakef ield; uses .90 power, 80" span. By Art Johnson. Roy Nelder's most functionally beautiful demountable cabin/pod. By Ed Lidgard. 1940 winner, from Nov. 1940 A ir Trails. No. 6812 LETTERS 8< NUMBERS $1.50 No. 12811 XINGU $4.00 Letters/numbers in round/square block, No. 6821 DUCKLING $3.50 High performance F3B type sailplane of plus proportional guide to make any size. All sheet wood R/C flying boat for mini contemporary construction. Ken Stuhr. radio and .02 .049 engine. Ken Willard. Να 681-O.T. ROCKETEER $4.50 Να 12812 A.J. INTERCEPTOR S1.00 High-climbing Class C gassie from Nov. No. 6822 ASCENDER $4.00 Replica of the famous Jim Walker folding '38 Air Trails. By Maurice Schoenbrun. Smooth flying, trike geared, tractor can­ wing catapult glider. By Dave Thornburg. ard. Ace foam wings, .15-.25. Skip Ruff. No. 5811 BLANÍK L-13& L-13J $9.50 No. 12813 SUNDAY FLYER $250 Czech 2-place sailplane in 1/5 R/C scale. No. 682-0.T. THE HERALD $4.50 Easy beginner's 1/2A sport F/F. One-day Optional power. Span 126". L. Houha. Pod/boom, twin ruddered. Class B pylon assembly. Ace foam wings. Ken Willard. gassie from May 1941 AT. Gene Chaille. No. 5812 C02 BANSHEE $1.50 No. 1281-O.T. FOLLY II $4.00 A 40% reduction of Leon Shulman's Cl. No. 5821 BUCKER JUNGMAN $15.75 Beautiful aerodynamic lines on this 6-ft. A post-w ar gassie, fo r C 0 2. By Ed Toner. Aerobatic quarter-scale model for geared gas job. Pic in July '37 MAN. Rod Doyle. 90, 1.2 direct, or Quadra. By Gene Pond. No. 581-0.T. MY SPARKY $200 No. 11811 WACO TAPERWING $17.95 Original design of longest running kit by No. 5822 CRYSTAL AMANITA $3.00 Sensational 1/4-scale R/C model of Bob Comet. Many building hints. Ed Lidgard. A ll sheet bass and balsawood 1/2A sport Lyjack's Waco. 2.b-3.5 eng. Larry Scott. C /L for all skill levels. By Tyrone Parker. No. 4811 NORTH STAR $4.00 No. 1181-O.T. HALF-PINT $2.50 Military scale-like R/C twin for .15 size No. 582-0.T. CONTEST WINNER $3.00 Tiny (24-3/4" span) pylon free flight gas engines. All wood. By Kalevi,Sundquist. High climbing diamond fuselage rubber model for Atom or .020. Louis Garami. ship from '38 Air Trails. Henry Struck. No. 481-C.P. STINSON 105 $3.00 No. 10811 HEATH PARASOL $7.50 Competition quality 50-inch rubber scale No. 4821 LOCKHEED VEGA $7.50 Lightweight quarter-scale for .60 power. kit plans by Megow. All parts detailed. Exact 1-1/4" R/C scale model of Jimmie Span 94", two-piece wing. Bob Kitson. Mattern's Vega, 50" span. Walt Muscieno. No. 481-O.T. POU DU CIEL $3.00 No. 10812 NAVY PT BOAT $200 Finely detailed 22-inch span rubber scale, No. 4822 AIR XX "PYLONER" $1.50 Built on Dynamic's 1/2" scale. 39" fiber­ Oct, '36 Flying Aces. By Ken Hamilton. AIR XX (20" Antique Indoor Rubber) of glass hu ll. Gas or electric. By A rt Bauer. typical O.T. gas model. By Ken Johnson. No. 3811 DORMOY "BATHTUB" $15.00 No. 10813 BUTTERFLY ONE $1.00 Unusual 1 /3-scale R/C (8' span) early ul­ No. 4823 SCHNIEDAIR $2.50 This little rubber powered ornithopter tra-light homebuilt,.40.60. Hank lltzsch. Composite of typical Schneider Cup rac­ looks like a big butterfly. Ken Johnson. er, fo r C O 2 or rubber. By Walt Winberg. No. 3812 HANDLEY PAGE 0/400 $4.00 No. 1081 C.P. N. A M E R IC A N B-25 $4 .00 F/F scale WW-1 bomber, 66" span, for 2 Να 482-0.T. TIGER SHARK $6.00 Miniature Aircraft Corp. 1/2"-scale kit 1/2A's. Major contest winner. B. Dennis. Enlarged, R/C version of nostalgic Victor plans. All printwood parts duplicated. Stanzel G-liner, 61" span. Harold Lanser. No. 381-0.T. SUPER BUCCANEER $7.50 No. 1081 -O.T. OLD SQUARE SIDES $4.50 Most famous Antique gassie from 1937. Very realistic sport cabin from July '40 Great for R/C, 90" span. Bill Effinger. No. 3821 G RE AT LAKES 2T-1E $17.95 Air Trails. Nice for R/C. John Sprague. One-fourth R/C scale model of popular No. 381-C.P. WACO YQC-6 $3.00 Classic Erabipe. 3 sheets. Frank Corny ns. No. 9811 SCALE EDO FLOATS $3.50. Super-detailed plan from Skymasters kit. Designed for Sig Cub, these floats fit any A ll ribs and bulkheads accurately shown. No. 3822 SIMPLE SIMON S3.50 two-inch scale model. By George Wilson. Really simple 1/2A sport R/C for 2-4 ch. No. 2811 LIBERTY SPORT $17.75 No. 9812 STINSON VOYAGER $2.50 Uses Ace foam wings. By Frank Roales. Mammoth 3-1/4" scale biplane for belt- One-inch scale rubber model of classic drive 60 on up. Four sheets. Roger Stern. design. Span 34". A.P. 'Speed' Wilson. No. 3823 PEANUT HOT CANARY $200 No. 2812 DYKE DELTA $1.50 Sharp staggerwing biplane racer, big for a No. 981 O.T. BOOMER BUS $4.00 Super-light indoor Peanut Scale model. Peanut but meets rules. By Bob Sweitzer. Another Henry Struck classic, from Feb. W ill fly 35-45 seconds. By Ken Johnson. 1941 Air Trails. For .19 to .29 ignition.

No. 3824 1912 BLACKBURN $4.00 No. 8811 MINI BIRD S4.00 No. 281-O.T. HERON $3.00 Free flight 1-1/2 inch scale model of fa­ Two-meter version of Dave Thornburg's A 48" span Class A gassie from Dec. '39 mous antique monoplane. By Sid Miller. well known Bird of Time. Mark Smith. Flying Aces. Cabin style. Frank Gagne.

No. 382 O.T. TWIN PUSHER $3.50 No. 881-C.P. SEVERSKY P-35 $4.00 No. 1811 WACO YKS-6 $6.75 Record setting rubber ship from Aug. '36 Miniature Aircraft Corp. 3/4"-scale kit Classic cabin biplane in R/C Sport Scale. Model Aircraft Builder. Ralph Kummer. plans. All printwood parts duplicated. For .29 - .40 engines. By John Burns.

No. 2821 ACRO SPORTSTER 40 $6.00 No. 881-0.T. TAIBI'S HORNET $7.50 No. 181-0.T .'32 WAKE WINNER S2.00 Sport/pattern low winger, open cockpit, Sal Taibi’s 1940 design for Forster 99 en­ Super-light 37" span rubber model uses tail dragger, .40 powered. Peter Neuer. gine. Span 88", chord 16", 1300 sq. in. motor stick. Designed by Gordon Light.

No. 2822 MESSERSCHMITT M33 $200 No. 7811 SPINE-TAILED SWIFT $3.50 No. 1812 PAULHAN-TATIN $1.50 Semi-scale, "bathtub" style, C02 P°wer- Contemporary 1/2A pylon racer designed Interesting 1911 streamliner with curved ed sport free flight. By Jack Headley. to win. Easy glass fuse. Jim Gilgenbach. dihedral, in Peanut Scale'. B y J-F F rugo li.

No. 282-0.T. VIRGINIA CHAMP $5.00 No. 7812 BIG PROP CHARTS $1.50 No. 12801 OMAC-1 $7.50 Little-known, but sharp Class C pylon, Charts for determining best engine and R/C Sport Scale pusher-canard executive April '40 F.A., 60" span. By Bob Little. prop sizes for the "biggies". John Burns. aircraft, 60 power. By Col. Bob Thacker.

NOVEMBER 1983 97 The SEVENTH Annual CONSUMER TRADE SHOW JANUARY 14 & 15,1984 Pasadena Center, Pasadena, California HOME OF THE FAMOUS ROSE PARADE & ROSE BOWL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS MODEL AIRCRAFT · MODEL ENGINES • MODEL BOATS RADIO CONTROL SYSTEMS • MODEL CARS • MODELING ACCESSORIES

SPECIALIZING IN RADIO CONTROL

INDOOR DEMONSTRATIONS STATIQ DISPLAY COMPETITION IN MANY CATEGORIES

SEE INDOOR R/C SCALE AIRCRAFT AND BUMP FLYING

ADMISSION: Adult admission is $3.50 per day, $Z25 for SWAP SHOP: Bring your saleable items to the Swan Shnr. Juniors (under 18). Weekend passes $5.00 adult or $3.00 area. NO DEALERS, PLEASE! Rent a whole table for $5 00 Junior. Children under 9 admitted free when accompanied or half a table for $Z50, in addition to general admiwion by an adult Discount tickets woth 504 available at most You are responsible for conducting your own sales IMS not hobby shops within 500 mile radius of Pasadena. responsible for lost or stolen articles! MS

STATIC MODEL COMPETITION: Entry is free, open to all ages, no limit on number of categories entered, but one en­ try per category. Trophies and ribbons awarded in over 40 * % m n u GIANT RAFFLE: Radio control systems kit* Q · categories. Complete competition rules at your local hobby will be raffled off Sunday afternoon. Ticket on T d ! ' shop, or write/phone IMS headquarters. show. You need not be present to win. dUMn9

INTERNATIONAL MODELER SHOW. BOX 127, COSTA MESA CΔ q o c t PHONF ί714ΐ-54«-47ηη np Í71 tl.e jc Ace R/C, Inc...... 77 Satellite C it y ...... 103 Adventure Model Center...... 80 INDEX TO ADVERTISERS Scan Am International ...... 93 Aircraft Spruce & Specialty Co...... 73 Schleuter F/F M odels ...... 73 Associated E le c tric s ...... 67 Sig Mfg. Co.. Inc...... 4,5 Astro Flight ...... 85 K&B M anufacturing...... 75 Skyhook ...... 95 Bavarian Precision Products...... 72 K&S Engineering...... 64 Francis Smith’s Shipyard...... 65 Beehive R/C Model Aircraft Co...... 90 Kustom Kraftsm anship...... 94 SR Batteries...... 86 Byron Originals ...... Cover 2 Leisure E le ctro n ics...... 81 St. C ro ix ...... 66 Bud Caddell Plans...... 78 Lutmi Enterprises...... 86 Super Cyclone Engines...... 91 California Model Im p o rts...... 71 Midway Model...... 88 Tatone Products...... 85 Campbell's Custom K its ...... 76 Midwest Model S u p p ly ...... 64 T&D Fiberglass...... 100 Cleveland Model Supply ...... 95 Model Rectifier Corp. (MRC) .. Cover 4 Top F lite ...... 68 Jim Crocket R e p lica s...... 93 Sid Morgan P lans...... 100 Uber Skiver...... Cover 3 D&L Trading Post ...... 95 Northeast E ngineering...... 87 Buzz W a ltz ...... 72 Du-Bro Products ...... 69 Novak E le ctro n ics...... 66 Westburg Plans ...... 79 Electronic Model Systems...... 90 Octura Models ...... 89 Williams Bros...... 78 Fourmost Products...... 83 PAS-M-CO ...... 82 W ilshire Model Center ...... 74 Fox Manufacturing Co...... 77 Peck Polymers...... 70 Wolff-Pak ...... 76 Futaba ...... 3 Pierce Aero ...... 84 Nick Ziroli ...... 74 Dick Hanson ...... 95 Pioneer Research...... 94 77 P ro d u c ts ...... 68 Hobby H o rn ...... 82 John Pond O /T P la n s ...... 94 Ikon N 'W est...... 81 Precision Sanding T ools ...... 87 HOUSE ADS Indoor Model Supply ...... 84 Proctor Enterprises...... 89 Binders ...... 100 International Modeler Show ...... 98 Prop Shop. The...... 92 Full-size Plans...... 98 J&J Model Accessories ...... 80 Repla-Tech International...... 83 Limited Edition Prints ...... 101 J-5 Enterprises...... 78 Rhom Products Mfg...... 70 Modelers Choice ...... 104 Jersey Metal Spinning ...... 88 Robbe Model Sport...... 1 Oldies But Goodies...... 102 CLASSIFIED ADS IMPORTANT INSTRUCTIONS: Non-commercial (personal items) rate is 25 cents per word, with a minimum of $3.00. Commercial rate is40 cents per word, with a minimum of $5.00. No advertising agency discounts allowed. RAZOR BLADES, single edge industrial first Name and address free, phone number counts as two words, abbreviations count as whole quality — extra sharp. 100/$4 25.200/$8 00. words and w ill be spelled out. 300/$11 75. 500/$ 19 25. 1000/S37 50 All ads are payable with order, and may be for any consecutive insertion period specified. postpaid in U S Cobbie's Gifts. Postbox 2. Send ad payment to: MODEL BUILDER, Classified Ads, P.O. Box 10335, Costa Mesa, CA Deal. NJ 07223; (201) 531 -6842 92627-0132.

OLD AIRTRAILS. Flying Aces. M A N , pulps WANTED — OLD MODEL ignition engines, ROTARY ENGINED AND WW-I FIGHTERS. etc . for sale Write R J Twohy. 24248 cars, etc Paying top dollar Bill Simpson. 7413 Factory or best-source drawing enlarge­ Crenshaw «103, Torrance. CA 90505 Via Lorado Rancho Palos Verdes. CA 90274 ments Experienced scratch builders only (213) 377-3532 72-inch span $26. 80-inch span $36. Photo packs 500 aircraft. Catalog $3. Scale Plans and Photo Service, 3209 Madison Ave.. Greensboro. NC 27403. TISSUE PAPER (Domestic) 20“x30" sheets, WILL PAY to $200 for Forster 99s and nineteen colors. 20C sheet. S.A.S.E. brings Anderson Spitfires. David Bogdanyi, 8615 sample of all colors. Contact Bill Wilson, Box Lindley Ave., Northridge. CA 91324, (213) 8489, Lumberton, TX 77711.(713) 246-4177. 885-8324.

FACTORY SALE Ras Stik 25-40 fun flier. 51 - inch foam wing, balsa fuselage Sale price $24.95, or with two rolls Econokote (colors FLYING ACES for sale, most pre-1940. red or white only). Fox 36RC tt23900, core Twenty-five issues, all with covers, un­ WANTED Spark ignition model airplane glue, fuel tank, wheels, motor mount $79.95 mutilated. All for $150. tirm. SASE brings list. J. motors parts race cars. Circa 1930-1950 Only 12 left Handling charge $3.00. add Swaney. 1330 Melville Dr., Las Vegas. NV Russell Stokes. Rt 1 Box 520. Keller TX $2.00 for C O D GT Models, P.O Box 869. 89102. 76248 Rantoul. IL 61866. phone (217) 893-4136.

NORTHROP N9M FLYING WING: Scale P-30 CONTEST PLANS Can do two minutes plans, photos. Send $1.00 for information Bill SCRAPBOOK OF SCALE by Bill Hannan. without thermals. Builds fast Rolled tube Young, 8106 Teesdale Ave., N. Hollywood, Twelve 3-views, photos, philosophy and fuselage $3.75 postpaid. P-30 Werks, 1715 CA 91605. whimsey: $9.95 postpaid, or send SASE for Knollwood. Apt. P-4. Kalamazoo. Ml 49007 descriptive leaflet. W.C Hannan. Box A. Escondido. CA 92025.

MODEL AIRPLANES AND THE AMERICAN DECALS — 50 sheets, assorted scale and BOY: Magazine reprints of 1927-34 era, 160 sport markings from discontinued U/C- pages. Photos and plans. "Heritage you SCRATCH-BUILT PROJECTS KITTED for Rubber kit line — $3.00 postage paid T. should know.” $9.50 postpaid. (SASE for your convenience. For quote, phone (218) Crouss. 100 Smyrna. West Springfield. MA INDEX.) Model Aero Publications. Box 135. 732-9216 or send stamp Craig R. Huntziger. 01089 Northridge, CA 91328 Rt 2. Box 326, Park Rapids. MN 56470

NOVEMBER 1983 99 toward that goal." ATTENTION % SCALERS NOTHING IS NEW Everyone has seen the Toyota auto EPOXY GLASS COWLS FOR: NOSEN. PICA. SID MORGAN. BALSA USA. PLATT. CONCEPT commercials that finish with the happy FLEET. HOSTETLER. RCM T CRAFT. SHEBER PIU S ·/» b '/« driver jumping in the air for joy. Would SCALE. SUPER CUB. FOKKER 0 7. BOEING P-12. P-26. F4B2. F4B4. SPARROW HAWK. GEE BEE MOD Y". MACBRIEN'S you believe that 43 years ago, Comet TURBULENT. CHRISTEN EAGLE. BRISIGHELLA S STARDUSTER Model Aeroplane Company was doing II. '/> SCALE J3 Bl BABY. FLYBABY A/RCAMPER PILOT JUNGM ANN 1 3 5 SCALE b OTHERS the same thing to sell Clippers? You wouldn’t? Check the photo from the WHEEL PANTS FOR: CITABRIA. STARDUSTER II. PITTS. SKYBOLT. LIBERTY SPORT. August 1940 issue of M.A.N. If not a CHRISTEN EAGLE. P6 E HAWK. STEARMAN. STINSON SR-9. commercial, then it’s a photo of the MULLIGAN b OTHERS world’s heaviest wing-loaded hang BRAZED b HEAT-TREATED WIRE GEARS& CABANES glider! LARGE SCALE PLANS AVAILABLE Please send $1.00 for complete list. WE DID IT AGAIN Al Patterson managed to slip another We supply Modelers with fiberglass parts for your plans—Write or call us: one by us with the Northrop N9M-A T & D FIBERGLASS SPECIALTIES Flying Wing in the August '83 issue. In 30925 BLOCK. GARDEN CITY. Ml 48135 answer to the many modelers who wrote PHONE (313) 421-6358 in, the balance point is between seven and eight inches behind the nose of the plane. Closer to seven inches, the better. METRICS NO! Phil Mahony, of Lime Rock, Connec­ VINTAGE R-C PLANS ticut, is a firm believer in staying with the inch. "Do you know how the French buy their butter? By the pound! And their recipes are all written that way. Have you 9 FT. WING SPAN ever been at a construction site when ALL RIBS 8 FULL FORMERS SHOWN ON PLANS 11 cement has been ordered in decilitres PLASTIC ENG.COWLS $ 9.90 PR. and is sent in decilitres? What will CLEAR GUN BLISTERS } 6.60 PR happen to all the good old sayings of the A LARGE PLAN SHEETS — Plans $16 95 past? Like, Ί wouldn’t touch that with a 6 f t . WING SPAN MODEL P B Y -5 A 3.048 meter pole,' or 'Give a man 2.54 cm ENGINE COWLS t 6 .S 0 PR. Ρ|αΠ5 $ 12.95 and he’ll take 1.6 km ’, or Ά miss is as GUN BLISTERS > 4,50 PR t2 .5 0 ADD POSTAGE good as 1600 m .' CATALOG-OVER 50 PLANS $ i 00 DEALERS W RIT "You start using metrics in your plans WORLD WIDE and you’ve lost this reader for one. I SID MORGAN know the metric system as I have to use 13157 ORMOND.BELLEVILLE, MICH.46lllu.su>. it. And I don’t really care for it. Just misplace a decimal point sometime, you’ll find out. Oh .. . one more point ... 3mm is just under an eighth, not over." Workbench. . .. Continued from page 6 I guess we'll have to budge 2.54 cm and be content to include a metric scale who need and want Sig products. And on the plans as we have been doing. we get complaints from modelers living in the vicinity of a Sig dealer who say MORE HOBBYPOXY COLORS they cannot buy certain items from Three more Royal Air Force colors, the local hobby shop, such as Sig Dope covering the change in camouflage (or example, because it is not stocked. schemes effective from 1942 until the So we (eel our retail department is a conclusion of WW-II, have now been necessary service. It produces only a formulated by the Pettit Paint Company. small percentage of our total sales and Medium Sea Gray was used on the does not justify the cost o f our catalog, under surfaces of home-based day w hich we look upon as primarily a fighters. It is made from three parts H70 dealer aid. But the most important point Gray and one part H10 White. to be made on this subject is the fact that Ocean Gray was used with Dark all mail order and walk-in trade sales are Green on thetopsurfacesofdayfighters made at full retail list price. Considering based abroad. It consists of seven parts this, we do not feel that factory retail H70 Gray, two parts H81 Black, and one sales cause any damage to the business part H33 Stinson Green. of Sig dealers. No modeler will write to Middle Stone appeared, with Dark the factory and wait for 10 days or more, Earth, on the upper surfaces of day if the item is available at once or can be fighters used in the North African ordered for the asking from a Sig dealer. campaigns. It is recreated using three Actually, just about all kit manufacturers parts H49 Cub Yellow, four parts H70 sell to retail mail order customers, so our Gray, one part H65 Bright Red, and one program is not unique, just more visible. part H10 White. Our final word on the matter is in every As with all the previous WW-II color Sig ad — ‘See Your Dealer First!' formulas furnished by Pettit, you will get "Sig feels that the future of the model the proper color only by using Hobby- industry depends on continued encour­ poxy paints, as specified, and each Ά certain, amount of stress is cjoocL agement and protection of genuine ■for you ...... r i g h t ?* hobby dealers. Our policies are directed Continued on page 104

100 WHEN CONTACTING ADVERTISERS, TELL ‘EM MODEL BUILDER SENT YOU! MODEL BUILDER Γ

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Original painting i artists’ acrylics by i Robt. fl. Benjamin, member. Internat! Society of flviatia á Artists.

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his is one of a series of limited edition the artist, and accompanied by a certificate of collector prints to be produced from paintings authenticity. Prints rolled and shipped in sturdy b y artist Bob Benjamin, most of mhich have first tube, UPS insured, ready for professional ppeared publicly on the cover of MODEL mounting and framing. BUILDER Magazine. Prints mill be allocated based on postmarked] Only 500 prints are available, each per­ date of order. Checks received after 500th print sonally inspected, signed, and numbered by is sold mill be returned uncashed.

To be filled In by PRINT ORDER FORM Send check to: MODEL BUILDER MAGAZINE MODEL BUILDER Attention: LIMITED EDITION PRINTS Box 10335, C O STA M ESA. CA 92627 PRINT NO.. PLEASE SHIP ME A LIMITED EDITION LITHO PRINT OF ROBT. A. BENJAMIN'S Please indicate in numerical PAINTING OF HAROLD KRIER'S GREAT LAKES SPECIAL. A CHECK OR MONEY order your preference for the ORDER FOR $50.00 PLUS $5.00 FOR SHIPPING AND HANDLING IS ENCLOSED. nex t limited edition print Please Print! NAME ______STREET □ Cub O P -4 3 D Franklin Sport CITY, STATE, ZIP Ol/Vaco YKS-7 □ Monocoupe Clip this coupon or make a copy O L D I E S (but still g o o d ie s ;) MOST BACK ISSUES OF MODEL BUILDER ARE STILL AVAILABLE, THOUGH THE SUPPLY IS DWINDLING. THE RE'S A TREASURE OF REFERENCE DATA IN EVERY ONE . . . FULL-SIZE PEANUT PLANS, SUPE RB WESTBU RG SCALE-VIEWS, HOW-TO ARTICLES (MANY WITH DETAIL SKETCHES), F/C FLYING TECHNIQUES, R/C POWER AND SAILBOATING, AND MUCH MORE.

ACT NOW, BEFORE THEY'RE GONE FOR EVER!! PRICES: All issues prior to January, 1981 ...... $2.00 AH issues January, 1981 and later ...... $2.50 ISSUES NO LONGER AVAILABLE Specify issues desired by month and year. Magazines FROM OUR STOCK: will be mailed Second Class, postpaid. Foreign orders (except APO and FPO) must add 604 per copy. Allow Sept. '71 (No.1) June '73 four weeks for delivery in US. If UPS shipment is des­ Feb. '72 May '76 ired, add $1.25 minimum for up to two magazines, or add $1.25 plus 354 for each additional magazine on March/April '72 Dec. '77 orders for three or more. Remit by International Mon­ July - Dec. '72 Oct '78 ey Order or U.S. funds drawn on a U.S. bank for Over­ seas orders. Master Card or VISA accepted. Include Jan. - April '73 Dec. '78 card number, expiration date, and your signature. MODEL BUILDER, P.O. Box 10335, Costa Mesa, CA 92627-0132 Phone: (714) 645-8830

No. 8781 R/C VELIE MONOCOUPE $9.50 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. 8771 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. No. 91074-0.T. BUHL PUP $6.00 Mammoth 3-1/4” scale biplane for belt- No. 6811 CURTISS P-40 $10.00 Semi-scale 8 ft. span model published in drive 60 on up. Four sheets. Roger Stern. Exact-outline giant/sport R/C scale for 1936 MAN. Redrawn by Phil Bernhardt. .90 power, 80" span. By A rt 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 $10.00 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 "W IM PY" $10.00 Unusual 1/3-scale R/C (8' span) early ul­ Lightweight R/C 1/4-scale homebuilt for Quarter-scale in 1941! Famous 9-foot de­ tra-light homebuilt, .40-.60. Hank lltzsch. sign kitted by Miniature Aircraft Corp. electric or ga?. 94” span. By Le Gray. No. 10811 HEATH PARASOL $7.50 No. 10771 KRIER KRAFT $10.00 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 "5 0 " S5.50 Scale ship from Dec. ’40 F.A. Suites O.T. SEE PAGE 96 FOR ORDERING INSTRUCTIONS. or R/C Sport Scale. 90" Tom Mountjoy.

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enjoyed by more people. ( SKY-SCRAPERS') INTERNATIONAL CHALLENGE 83 ART BAUER, by Don McGovern GALEVILLE ARMY FIELD "O n July 7, the modeling world lost a OCT. 8th and 9th ^ dedicated modeler, Arthur S. Bauer, President of Dynamic Models, Inc. FAI POWER FAI NORDIC A-2 FAI WAKEFIELD “ Art was avid in his approach to HL GLIOER (German Rules)—SAT. EVENING or EARLY SUNDAY A.M. UNLIMITED RUBBER everything, and all forms of modeling. In Rounds start Saturday at 10 A.M . AMA SANCTION #1573 the 1970s, he ran XL-ent Products, and Finish on Sunday at 2 P.M . Flyofls 2 P.M. was a familiar face at Toledo and the H L Glider Sunday Only. WRITE FOR FLYER Special Awards lor Unlimited Robber· WITH MAP tail INSTRUCTIONS modeling shows. He flew military liaison aircraft, and commanded a helicopter Contest Oirecton Joe Wagner. 12 d o k SL. Rowayton. CT 06853 squadron in the Vietnam years. Art was an FAA Air Traffic Controller until his Continued from page 100 majority, the thousands of modelers recent retirement. As a member of the and/or non-modelers who are out Long Island Soaring Association, Art formula should be mixed with an equal there, running engines wherever and flew full-scale gliders actively, and portion of Flat Hardener for a proper whenever they damn well feel like it? powered aircraft as well. matte finish. Well, perhaps it’s the engine manu­ " I t’s hard not to love boats on Long If you have missed seeing the previous facturers who had better take another Island, and Art built Dynamic Models Hobbypoxy formulas for WW-II scale look. Let’s suppose they produced into a nautical enterprise. He was one of colors as published in Model Builder, engines with built-on mufflers ... not the leaders in R/C Scale model boating write to Pettite “ Hobbypoxy” , 36 Pine bolt-on ones that can be easily removed, and his tugs chugging across a mill pond St., Box 378, Borough of Rockaway, N) but built on as part of the crankcase. Or in the twilight with lights and electronic 07866, or call (201) 625-3100, and be sure design the engine so it will not run sound effects were a sight to see. to tell them that MB sent ya! properly without the muffler. We don’t "Art knew he was going downhill with QUIET! claim to have any bright ideas along cancer, wired his bedside to work to the In Mike Hazel’s Control Line column these lines, but is it not better to pro­ last day. Art had things to do. this month, he laments the fact that duce and sell sound-acceptable engines “ Art leaves his wife Phyllis, sons noisy engines continue to cause the loss than no engines at all? Steven, Richard and Robert, and a host of rapidly diminishing flying fields. He The four-cycle engines being used at of saddened friends. He was 53, but points out that although many modelers this year's Nationals, in Pattern and R/C somehow packed a lot into those short are too slack in muffling their engines, it Scale (were there others?) made a years, and he still seems to be with us. would certainly help matters if AMA significant impression on many model­ Art recorded all he knew on tapes in his would take a firmer stand on enforcing ers present. Maybe this is the first giant last few days, a measure of a man that we their use throughout all categories. And step toward quiet engines that will allow will miss. as Mike points out, what about the silent the hobby to come back to civilization, “ So long Art, from all of us. We salute (well, not when it comes to engines!) where it can be seen (not heard) and your fighting spirit.” ·

104 MODEL BUILDER IN THE BEST CIRCLES, ITS fiber §kKer

A PRECISION INSTRUMENT FOR THE DISCRIMINATING MODELER

NEW PRICES AS OF APRIL 1. 1983 Safe, Rear Draw-Bar Clutch Available in seven satin anodized handle colors: Precision, Instrument-Quality Materials silver, blue, red, green, gold, black, & violet. Strong-Holding Advanced Collet Design Complete set in fitted hardwood case; includes 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 ...... $16.50 Long-Life, Stainless, Individual handles (specify color) $6.95 Vial of 6 blades (No. 1 0, 11. or 15) $3.00 Surgical Steel Blades (No. 12 or 20) $4.00 20 £ See your dealer, or order direct. Dealer inquiries are invited. PRODUCTS All direct orders sent postpaid in U.S. MODEL BUILDER California residents add 6% sales tax. 621 West Nineteenth St., Costa Mesa, California 92627 SOMETH' 4G VERY BIG AS JUST HAPPENED TO READY-TO-FIY Introducing MRC’s Cessna Skyhawk. The first large scale RTF: • 6 Foot Wingspan · 49 Inch Long Fuselage · Rugged Construction

IT LOOKS AND FLIES LIKE A SUPERB HANDLING FOR buy MRC’s Skyhawk and be REAL PLANE NOVICE AND ADVANCED ready-to-fly in little more than There are lots of large scale It’s attracting beginners and 90 minutes. R/C planes you can buy, but pros who are hooked on its The Enya .35TV engine is none are “ready-to-fly” like our ready-to-go status, and superb already installed as are most V s scale foam Cessna Skyhawk. handling. Trim the control sur­ of the other time consuming And none offer the realism or faces for minimum movement assembly operations, including rugged durability. and handling is soft and gentle control rods, hinges and horns, INCREDIBLE STRENGTH enough for a beginner... fuel tank, motor mount, and To prove its unique, rugged Set it up for added deflection ailerons. Of course, decals, construction would stand up to and it responds with a maneu­ prop, plug, muffler and muffler incredible pressure, we removed verability that experienced fliers extension, wheels, and most the landing gear and had a 170 lb. can sink their controls into. Re­ every other component is flier straddle the 6 foot wing. He sponsiveness is complete with included. Fuel battery and radio barely left a mark on the foam. four channel control of steerable are not included. What supported the weight? A nosegear, aileron, elevator, See the biggest thing in RTF combination of carefully de­ rudder and throttle. at your hobby dealer, MRC’s signed features like wooden BUY AND FLY Cessna Skyhawk...it’s a new spars...and coupling high den­ And instead of spending dimension in flying. sity foam with full 1 inch thick hours building a big, beautiful, sidewalls. stand-off scale craft, you can M R C ® Model Rectifier Corporation 2500 Woodbridge Avenue, Edison, New Jersey