Radio Contml Scale Bob & Dolly Wischer FRANCE AND ENGLAND trip Paris Scale World Championships cluded experiences Scale models seen modelers met report meet couldnt possibly have touched events airplanes par ticularly follow-up included crossing Channel visit Scale contest Abingdon England LeBourget World Meet Peter McDermotts Sopwith Snipe sec ond highest static score good reason two-year project 7F 1 Snipe exquisitely detailed -scale reproduction WW fighter Canadian National Aeronautical Collec tion Ottawa models 1 A-lb dum Bentley rotary engine mounted large ball bearing race cylinders turned aluminum actually rotated exhaust stream Magnum 91 four-stroke engine hides view Valve pushrods spark plugs faithfully reproduced weighty mass continues spin after Magnum prop have stopped impressive prototypical Gyroscop ic action spinning mass seems have no effect flight An additional half-pound lead brings total noseweight over two lb extra weight 745-in-wingspan Snipe weighs 128 lb Other exceptional features rib stitch es made real thread stabilizer cidence adjustable cockpit original Peter made rigging wires 028 music wire covered flattened plastic tubing wire ends soldered tubing terminals right left threads length adjust ments can made twisting wire also copied full-scale practice wing loading 20 oz per sq ft Snipe flew well light wind condi tions Le Bourget Engine fuel prob lems limited power output kept its flight scores unreasonably low fin ished fourteenth place As often hap pens competition little obstacles keep great airplane Grumman F7F-1 Tigercat L latest Scale project David Parker Martock England pair Enys 35s power 9-lb fighter Construction -oz glass cloth over planked-baisa fuselage foam wing uses Rom-Air retracts Britains finest craftsmen Duncan Hutson built thIs fine Avro Anson R Power twin Irvine 30s Model weIghs 131 lb has hand-made re tracting gear tires gears 0160 shock struts operational Craft spans 84 finished K&B Suparpoxy over nylon 50 Model Aviation Paris operational dummy rotary engine Peter McDermotts Scpwlth Snipe i support ed ball bearing impelled exhaust stream Magnum 91 four-stroke hiding behind IL tiny data plate cowl gIves Bentley engine specificatIons model second-hIghest statIc score Scale World Champs England Group Captain James Peily-Fry Fivehead England flew prototype Vickers Wellealey model i A-scale African campaign WW ii Finish 90-in-span bomber Humbrol paint over nylon Polykote fuel-proofer An Enys 40 fourstroke files thIs 7-lb 10-oz ship easily Plane has Rom-Air retracts doing well met Peter McDermott again Abingdon Scale contest England week after conclusion Paris meet Abingdon partially-disused military air base central England near Oxford plenty space separate RC CL areas contest used FAT rules bonus system effect RC saw no trophy prize awards Weather contest contrast Paris cool blustery constant threat rain Peters airplane meeet Bowers Fly Baby wise choice existing weather conditions Winner contest Mick Reeves fabulous new Hawker Hurricane best flight made during gusty rainstorm everyone scoring judges searched shelter Soaking-wet score sheets must have difficult mark Micks high flight scores largely attributable Hurricanes ability fly speed attitude provides scale appearance Le Bourget Enya 90 four-stroke seemed over heat due mostly lack ventilating air completely-cowled engine ly air inlets around periphery spinner through simulated coolant radiator under wing Air out lets through dummy Merlin ex haust pipes Abingdon cooler weather secmed benefit Enya Continued ae 145 Steam powerl model Isnt scale its builder David Parker usually builds Scale However hes striving make opera tional steampowered model some time Plane files average live minutes threeminute enginerun consumes four ounces alcohol fuel four ounces water Ship actually RC-assist Free Flight model rudderoniy takes off weight 31/i ib Steam engine drives handcarved prop generates thrust 24 oz Closeup nose bolier R shows stainless steci firetube flash boiler constitutes maIn fuselage sectIon Comet ha Heat fire escapes through double row holes Lateral tube wing fastening Visible atop fuselage just behind wlngtube steam pressure manometer reads 60 psi EIGHTH ANNUAL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT L ENGINES MODEL BOATS O CONTROL SYSTEMS *SWAP SHOP MODEL CARS LING ACCESSORIES *GIANT RAFFLE WIN TWO FIRST CLASS ROUND TRIP TICKETS GOOD FOR TRAVEL BETWEEN ANY TWO CITIES IN THE USA SERVED BY DELTA AIR LINES INCLUDING NASSAU BERMUDA AND SAN JUAN! STATIC DISPLAY COMPETITION IN MANY CATEGORIES January1985 51 JANUARY 12 & 13 1985 U IU VLH5LA IWI UHIS UUHUIA L L Y IN Vi LUI INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Costa Mesa CA 92627 Ph 714 5484700 645-88301 Perma-Grit TM Lifetime * Carbide Sanding Tools Tungsten Carbide grit hardest material next diamondp * Outlasts sandpaper 100s timesTungsten carbide grit brazed * Tools will load upsteel 9 long tool use * Grit cant tear looseon balsa hardwoods fiberglass * Makes fitting blending fairing pleasurebeaded foams epoxy fillers * Fairs LE TE foam undercuttingplexiglas * Rapid stock Removal better control * Saves time money end aggravation e USA * Replaces plane knite rasp fr sanding blocks Average Modelers Use F-tOOFlat Coarse/Fine$695 excellent tools thatF-lOt Flat Fine$695 modeler can useF- 102Flat Coarse$695 Don Lowe Professional EngineerR-200 3/4 Radius Coarse/Fine$695 Ask Dealer send check MO No CODs to 1-201 1/8 Tangent Coarse/Fine $695 1-202 3/4 Round Coarse/Fine$625 DIG Products_ 1203 d- Coarse/fine$495 209 Carrlands Dr Dayton 0*4 454291204 d- Coarse/Fine $495 o 94-1192 tage Paid Ohio residents add 6% tax Without judges wouldnt contest probably several other places theyd rather After first contest normal reac tion decide wasnt bad after especially everything went well big factor success proper preparation knowing what expect Both pilots control Good luck has long column rea lize exclusively about Aero batics owe sport fliers Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 RO ScalelWischers Continued page 51 otherwise severely abused cant quite agree philoso phy fuel propellers engines expendable items models interest winning obtaining high static score submerged engine Nev ertheless Mick has proved us possible build fly totally-believ able WW II fighter A-scale can have scalelike appearance both air during static judging ulti mate scale accuracy Mick has made own aluminum wheels tires formed Devcon RTV rubber compound Second place Abingdon awarded Duncan Hutson A-scale Avro Anson Mk 1 model large 84-in wingspan definitely un derpowered pair effectivelysilenced Irvine 30 engines serious competitors have adopted concept building multi-engined aircraft large possible staying within 132 lb weight-limit Duncan just barely stayed in-bounds very innova tive fellow used Sanwa sail winch model boat hobby operate handmade retract mechanisms land ing gear working oleo struts wheels tires silicone rubber airplanes Abiflgdon Anson least affected wind permitting ac curate placement its dropped bombs Steam power England paid another visit friend Group Captain James Pelly-Fry inspect newest Scale airplane Vickers Wellesley has modeled after prototype flown East African campaign early days Italys involvement WW II accounts have read about experiences aircraft James successfully landed night Sudan desert await dawn before returning base After unexpected return request replacement cancelled Wellesley extremely large airplane single Bristol Pegasus XX 935-horsepower engine having span 75 feet James model /0th scale 90-in wingspan weighed TA lb wing loading 20 oz per sq ft engine Enya 40 four-stroke no lack thrust fly large airplane As prototype model employed geodetic construction fu selage stringers wing ribs basketweave pattern over external sur faces models framework quite complex possible build very light strong framework meth od Rom-Air retracts very wide tread great stability ground James regular flying companions days David Parker Brian Taylor disused air base near homes southwest England Davids newest Scale model Grumman Tigercat F7F-l pair Enya 35 engines Rom-Air retracts Like scratch-builder Scale model ers David has streak inventive geni us long-term projects has development steam-powered model airplane has now reached stage successful five-minuteduration flights three-minute engine run four ounces ethyl alcohol fuel equal amount water Comet IIA model weighs 35 lbs fuel water has 62-in wingspan 630 sq wing area water-tube boiler fabricated thin sheet stainless steel brazed joints one-cylinder steam engine nose develops 24 ounces thrust hand-carved prop Heat exhausted through open holes boiler January1985 145 30 PACIFIC ACE Complete kit $750 plus $150 S & H Also Rearwin Speedster Cessna 34Fairey Battle Fairchild Ranger & Lam bert Monocoupe 30 Price $1000 Fa SEAGLEN MODEL CO BOX 123 Plympton MA 02367 Power Soar New Heights LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 top exhaust steam emitted engine barely-discernible jet High prop pitch absorbs energy constant pressure operation alcohol flame light ed match through hatch boiler side Pressure builds slowly until prop begins turn Flow air prop carried boiler draft tube scoop bottom current air quickly converts sim mering heater flash boiler stant] changes water steam Pressure rises Very rapidly 60 psi read tiny manometer boiler top con tinues hold value throughout three-minute engine run After fuel completely consumed little water remains drained air intake size boiler bottom determines rate fuel burning no wasted energy flame coming out top exhaust openings Comet model essentially Free Flight rudder control RC keep within flying field boundaries boiler forms main portion fuse lage nose attached front tail rear individual wing panels plugged boiler sides tubes Al together astounding flying machine Model boxes As seen Le Bourget Scale models have steadily increased size also strong movement con vince FAI permit increase model weight would have subse quent effect model size upward direction Since World Champion ships conducted Europe increase size poses problem transportation US team very fortunate have assistance TWA sales repre sentative handling monster-sized model boxes Washington-Dulles Airport De Gaulle Airport Paris boxes accepted excess bag gage because team members supporters departed group ques tionable whether such large boxes would have taken air freight exorbi tant cost problem has its beginning team trials nothing said about transport large models Everyone vited fly whatever airplanes will fit FAL rules winners naturally reluc tant make changes large model will fit smaller space would greater resistance sug gestion new aircraft designed built years time easily transportable now appears competitors need asked advance meet maximum standard box size past dimensions absolute maximum 24 x 36 x 72 stressed effort made have dimensions considerably less box too big wasnt per mitted board military transport planes carried us modeler would faced having make quick decision alternate transport using commercial airlines have become lax stipulation size TWA represen tative dismayed looked side oversize overweight boxes see vast empty spaces inside Hobbypoxy colors recently-released formulas mixing cor rect amounts Hobbypoxy paint standard military colors yellow blue commonly found trainers WW II few examples Stearman AT-6 SNJ Harvard Chipmunk T-28 other US British Canadian trainers yellow used United States train er aircraft ANA 614 Orange Yellow FS 13538 gloss FS 33538 matte finish color also known Iden tification Yellow Chrome Yellow Continued page 148 Statement Ownership Management Circulation Required 39 USC 3885 lA Title Publication Model Aviation 18 Publication No 087930 2 Date Filing October 181984 3 Frequency lasue Monthly A No issues published annually 12 B Annual aubacription price $1800 4 Complete Mailing Addreaa Known Office Publica tion atreet city county atate zi code print ers 1810 Samuel Morse Dr Reaton VA 22090 S Complete mailing address headquarters gen eral business otficesofthepublishernot printer 1810 Samuel Morse Dr Reston VA 22090 6 Full names complete mailing address publisher editor managing editor thia item must blank Publisher Carl R Wheeley 1810 Samuel Morse Dr Reston VA 22090 Editor Carl R Wheeley 1810 Samuel Morse Dr Res ton VA 22090 Managing editor None 7 Owner Academy Model Aeronautics Inc 1810 Samuel Morse Dr Reston VA 22090 8 Known bondholders mortgagees other security holders owning holding 1 percent total amount bonds mortgages other securities None 9 For completion nonprofit organizations authorized mail special rates Section 42312 0MM purpose function nonprofit status organi zation exempt status Federal income tax purposes 1 Has changed during preceding 12 months 10 Extent Nature Circulation Actual AverageNo copies No copiesof single issueissue duringpublished precedingnearest 12 monthsfiling date A Total No Copies Net Press Run7592583200 BPaid and/or Requested Cir culation 1Sales through dealers carriers street ven dors counter sales36213825 2Mail Subscriptions6890276336 C Total Paid and/or Requested Circulation Sum 1081 10827252380161 DFree Distribution Mail Carrier Other Means Samples Complimentary Other Free Copies24762445 ETotal Distribution Sum C D7499982606 FCopies Distributed 1 Office use leff over un accounted spoiled after printing601575 2 Returns News Agents32819 G Total Sum E Fl 2 should equal net press run shown A7892583200 11 I certifythat statements made correct complete Carl R Wheeley Editor Publisher 146 Model Aviation RjAY TA 1% ____I VL PRODUCTS FIELD BOX its four compartments VL FIELD BOX assembled Ready Go accommodate everything need pre pare take-off fast charger charger cables tools test meters gel cells etc made heavy duty corrugated Handle reinforced 1/8 masonite Off-white background printed blue black space marked name address etc side convenientCharging Schedule opposite side ---- always $ g readyforyourreference Imagine q Field Box y go nd support equipmentP~e$%r handling Calif residents add 29 safes tax Send $1 $0 tsr complett illustrated product CstaIa PRO DUCTS 7871 ALABAMA AVENUE CANOGA PARK F 91304 CLEVELAND GIANTSI NEW FOR GIANTIALE BUFFS~j worlds Largest Gas Plans Assarfme RNATIONALLY FAMOUS C-D OLIALITS MASTER MODELS PLANS 5450$evroielIe 21 $4 7BConeci cal PBV2A 542 72 car 02121/4 L&S $46 104 can car PBY5A 556 62 ilonnard Race Ike 54$96 WrisitNenyRao 54R- 77 Boeing B-i70 Porn 535 52 WWrr121 Rd L 536 i03 Bee 6170 P01 555 77WWn121 Red L 54$- 6$ $o,s v46A 06 $32..* 64 Pnkknr D7 Pr$39 i0B Siker S3$ Anph $49 60 90-card Pece Raie $32i- 60 Baa 100 Sport$36 70 Bayi O,Be $231 90 Ban isa Sport$49 60 Saprrrarine S6B $24 90 StinAtoa Wing $56 89 Saparnrorine S6B $32- 60 MorOn 74 T4M1 $29 62 carr tioak P6E $42 75 HPg 0400 $onh $42 94 c,9ok P6E Ptr 554n 104 HPg 0400 Ban $26 62 Lockheed Vega$24 65 Mchjna clip9 74 iSoalinie 06 11 548 97 92 Manacoape Sport$2668 60 9-li Spr Baildog $42 65 Ry 107 Aerenco c3 SF $25 68_______________ 61 Soosia 028 06 $22 77 k 122 Doaglo 02806 $49 72 N AM oh Ratok $49 94 Pog car Racer $40 62 M Ma oade 626 $49 71 Marlin 810 Baink $29 $1 OH Macqa Rb $42 78 Tamer WW 9cc 535 10809 Macqa Ronrb 555 f 02 car Oohk Pi 1C2 $42 va S ea PT 7Kaydet $56 ...-rjlr 94 car Oohk Pi12 $54 99 S6 09ev cone Ran 524 71 62 HoaMrMaillgan53595 94 HoooMr Malligon $45 56 62 Eceing P26A PIr$36log 84 Boeing P26A Ptru4860 69 Waco c cabin$2668 64 Beech C17B Stag $38 596 onnRaceMLA $54 96 Beech C17E Sras 549- 1070 Scant P87 524 ook Ii Eleorro $30 72 T an-cl 6008 $24 82 Lank 11 Elenrra $40 107 Mar MR Ban $44 62 Sriran 0 W 5R7 $16 91 Lindker9 NO211 029 61 Srinon 0 W S97 524 08 PairhPT19 Tr$59 122 Orincor T w 5R7538vOWaoo Tap Win0 O29~-cr 59 Brital Pr P26 $20 75 Worn 6 Lyand 78 Bridal PIr P26$32190 Werl d Lyander549 Il8 Oritol PIr P26$45tS7PardTrntr4AT828 74 TL Pecoc Spec$45r76 Par4 Trnrr 4 AT$45 62 Skyrooker OP5Pi$20114 Ford Trnrr 4 AT$59* 56 Car Warhk P40$2484 Ben Joyoe XPJ 2$56.. 7$ Lank Lishrng P38 $2893 Loer ag c OAnph$69 26RepSeaBeeAtn$54SAOanJ2P Dank$29 74 RepSeaB Anpht29780 J2 P Dank$56... 106 Piper 23 Cab$3959 Ontha OiV Bonn522 98 Lack Hadan Bnk $38117 Oalha OIV San$29 62 Oran P6P Hellcar52868 900952 Taer Mnrh$3954 Nor Sold Thra DenierPri 01cO Peico iooCanea Oral On-cr 1200 Odrer, 6 73 Add 10% order h USA Can & Moo EIenher Pictorial catolag 52 00 lioclade Price Licrl Prine lir ancrian clone 5100 air tore9- add $100 CLEVELANDMODEL&SUPPLY Co 7B SETROiT AVE cLEMBLANS OHiO 44182 Poor Seroce 1L S0n 01030002990 3000,,4 Robson House Hobby Supplies 222 Clareview Road 0-3 Edmonton Alta Can T5A 3Y5 MC VISA No _________________________ ExpeaFoe Date _________________________________ Signature Name Street Cay State Please alow 3 weeks estra o cueces Invited join National Soaring Society OFFICIAL SOARING SPECIAL INTEREST GROUP YEARLY NATIONAL TOURNAMENTS NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT BI-MONTHLY NEWSLETTER NSS CONTRIBUTES SUBSTANTIAL AMOUNTS TO EACH F3B SOARING TEAM NSS IS RESPONSIBLE FOR THE ORGANIZATION AND OVERSEEING OF AMA NATS INCLUDING AWARDS BANGUET YEARLY DUES ARE 51200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS pL % 9 4z S 0 Informaton Contact JOHN R VOGEL 906 ORCHARD PARK DR GIBSONIA PA 15044 148 Model Aviation depending what reference source used blue used fuselages Stear mans other similar trainers also referred different names sometimes called ANA 501 Light Blue some times True Blue federal standard number ES 15102 paint glossy British Canadian trainers painted yellow also RAE RCAF color being called simply Yellow sample Hobbypoxy reference material matte contem porary aircraft can glossy well formulas ANA 614 Orange Yellow 20 parts H49 Cub Yellow four parts H47 Bright Yellow part H66 Dark Red part H1O White ANA 501 Light Bluefour parts H25 Sky Blue three parts H24 Dark Blue part H65 Bright Red part H67 Maroon RAF/RCAF Yellownine parts H49 Cub Yellow seven parts H47 Bright Yellow three parts H55 Cream two parts H66 Dark Red Eor matte finish mix 11 Hobby poxy HOS Elat Hardener Eor gloss fin ish use either H02 H06 Gloss Quick Spray Hardeners Hobbypoxy has revised updated its Hobbypoxy Painting Pointers Brochure 1985 four-page booklet describes products extensive line finishing materials gives complete structions use Expert methods priming finishing bare balsa fiberglass epoxy glass molded plastics discussed Information giv en painting trimming various types iron-on covering materials greatest interest modelers will highly-detailed very thorough sec tion spray painting techniques includ ing selection proper airbrush compressor equipment brochure available mail no cost Request copy Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Box 378 Rockaway NJ 07866-0378 Bob Dolly Wischer S-221 Lapham Peak Rd Delafleld WI 53018 RC ElectrlcslKopski Continued page 53 tory everyone Electric OT anyway Same reas ons some folks fly Peanut scale some CL Carrier some RC Helicopterits fun theres something else too getting more fun damental concern kind gaspowered flying Remember school yard mentioned above Such event schoolyard exception Erom what can determine schoolyards closed model flying bet lot would change clean quiet Elec tric power Get point Before getting main event month want recall attention lead photo column Sep tember issue mystery plane pictured open structure brought three writ ten responsesall correct naming model Lockheed Constellation No guessed builder Heinz Koerner Heinz gentleman runs Clin ic annual KRC Electric Ely Connie second first completed technical reasons larger mishap few weeks prior years Electric Ely repaired time event Look next year As promised last column month will describe results date severalmonth experiment involving power system makeup Electrics may recall visitor field sum mer Tom southern California told high rate-of-climb preference Electric gliders out turf compared slower though longer power ascent out way decided try way same time put further test long-held tenet its battery other things being equal determines average total flight time such plane chose now-frequent example Spectra Soar design boring because have lots historic data Some data graphed Part Seven MAs Electric Series March 1984 flight histogram presented showed very clearly average flight time about 13-14 minutes hundreds flights six-cell 12 Ah battery various 05-sized motors data flying generally evening weekend morning air no obvious lift present decided install Cobalt 15 suit able battery trying maintain same weight balance etc Erom bench data knew Cobalt 15 7 x 6 nylon nine cells should have static put power level about 140 wattsmuch before vastly needed just cruise plane worked out very well Both OS motor six-l 2 Ah-cell system Cobalt 15 nine-O8 Ah-cell system weigh about 18A oz although new battery about oz lighter felt certainly close enough make valid test argu ment total flight time should about same both power systems same time give taste significantly faster rate climb shorter total motor-run time Indeed power combination proved definitely much faster-climbing replaced useful power run time just definitely much shorter expected nine 08 Ah Sanyo cells assembled pack would fit exactly six pack 12 Ah cells beenincluding interfacing exist ing cooling-air exit holes cells spaced balsa sticks accomplish assembly held together clear silicone adhesive later proved inadequate adhesive and
Edition: Model Aviation - 1985/01
Page Numbers: 50, 51, 145, 146, 148
Radio Contml Scale Bob & Dolly Wischer FRANCE AND ENGLAND trip Paris Scale World Championships cluded experiences Scale models seen modelers met report meet couldnt possibly have touched events airplanes par ticularly follow-up included crossing Channel visit Scale contest Abingdon England LeBourget World Meet Peter McDermotts Sopwith Snipe sec ond highest static score good reason two-year project 7F 1 Snipe exquisitely detailed -scale reproduction WW fighter Canadian National Aeronautical Collec tion Ottawa models 1 A-lb dum Bentley rotary engine mounted large ball bearing race cylinders turned aluminum actually rotated exhaust stream Magnum 91 four-stroke engine hides view Valve pushrods spark plugs faithfully reproduced weighty mass continues spin after Magnum prop have stopped impressive prototypical Gyroscop ic action spinning mass seems have no effect flight An additional half-pound lead brings total noseweight over two lb extra weight 745-in-wingspan Snipe weighs 128 lb Other exceptional features rib stitch es made real thread stabilizer cidence adjustable cockpit original Peter made rigging wires 028 music wire covered flattened plastic tubing wire ends soldered tubing terminals right left threads length adjust ments can made twisting wire also copied full-scale practice wing loading 20 oz per sq ft Snipe flew well light wind condi tions Le Bourget Engine fuel prob lems limited power output kept its flight scores unreasonably low fin ished fourteenth place As often hap pens competition little obstacles keep great airplane Grumman F7F-1 Tigercat L latest Scale project David Parker Martock England pair Enys 35s power 9-lb fighter Construction -oz glass cloth over planked-baisa fuselage foam wing uses Rom-Air retracts Britains finest craftsmen Duncan Hutson built thIs fine Avro Anson R Power twin Irvine 30s Model weIghs 131 lb has hand-made re tracting gear tires gears 0160 shock struts operational Craft spans 84 finished K&B Suparpoxy over nylon 50 Model Aviation Paris operational dummy rotary engine Peter McDermotts Scpwlth Snipe i support ed ball bearing impelled exhaust stream Magnum 91 four-stroke hiding behind IL tiny data plate cowl gIves Bentley engine specificatIons model second-hIghest statIc score Scale World Champs England Group Captain James Peily-Fry Fivehead England flew prototype Vickers Wellealey model i A-scale African campaign WW ii Finish 90-in-span bomber Humbrol paint over nylon Polykote fuel-proofer An Enys 40 fourstroke files thIs 7-lb 10-oz ship easily Plane has Rom-Air retracts doing well met Peter McDermott again Abingdon Scale contest England week after conclusion Paris meet Abingdon partially-disused military air base central England near Oxford plenty space separate RC CL areas contest used FAT rules bonus system effect RC saw no trophy prize awards Weather contest contrast Paris cool blustery constant threat rain Peters airplane meeet Bowers Fly Baby wise choice existing weather conditions Winner contest Mick Reeves fabulous new Hawker Hurricane best flight made during gusty rainstorm everyone scoring judges searched shelter Soaking-wet score sheets must have difficult mark Micks high flight scores largely attributable Hurricanes ability fly speed attitude provides scale appearance Le Bourget Enya 90 four-stroke seemed over heat due mostly lack ventilating air completely-cowled engine ly air inlets around periphery spinner through simulated coolant radiator under wing Air out lets through dummy Merlin ex haust pipes Abingdon cooler weather secmed benefit Enya Continued ae 145 Steam powerl model Isnt scale its builder David Parker usually builds Scale However hes striving make opera tional steampowered model some time Plane files average live minutes threeminute enginerun consumes four ounces alcohol fuel four ounces water Ship actually RC-assist Free Flight model rudderoniy takes off weight 31/i ib Steam engine drives handcarved prop generates thrust 24 oz Closeup nose bolier R shows stainless steci firetube flash boiler constitutes maIn fuselage sectIon Comet ha Heat fire escapes through double row holes Lateral tube wing fastening Visible atop fuselage just behind wlngtube steam pressure manometer reads 60 psi EIGHTH ANNUAL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT L ENGINES MODEL BOATS O CONTROL SYSTEMS *SWAP SHOP MODEL CARS LING ACCESSORIES *GIANT RAFFLE WIN TWO FIRST CLASS ROUND TRIP TICKETS GOOD FOR TRAVEL BETWEEN ANY TWO CITIES IN THE USA SERVED BY DELTA AIR LINES INCLUDING NASSAU BERMUDA AND SAN JUAN! STATIC DISPLAY COMPETITION IN MANY CATEGORIES January1985 51 JANUARY 12 & 13 1985 U IU VLH5LA IWI UHIS UUHUIA L L Y IN Vi LUI INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Costa Mesa CA 92627 Ph 714 5484700 645-88301 Perma-Grit TM Lifetime * Carbide Sanding Tools Tungsten Carbide grit hardest material next diamondp * Outlasts sandpaper 100s timesTungsten carbide grit brazed * Tools will load upsteel 9 long tool use * Grit cant tear looseon balsa hardwoods fiberglass * Makes fitting blending fairing pleasurebeaded foams epoxy fillers * Fairs LE TE foam undercuttingplexiglas * Rapid stock Removal better control * Saves time money end aggravation e USA * Replaces plane knite rasp fr sanding blocks Average Modelers Use F-tOOFlat Coarse/Fine$695 excellent tools thatF-lOt Flat Fine$695 modeler can useF- 102Flat Coarse$695 Don Lowe Professional EngineerR-200 3/4 Radius Coarse/Fine$695 Ask Dealer send check MO No CODs to 1-201 1/8 Tangent Coarse/Fine $695 1-202 3/4 Round Coarse/Fine$625 DIG Products_ 1203 d- Coarse/fine$495 209 Carrlands Dr Dayton 0*4 454291204 d- Coarse/Fine $495 o 94-1192 tage Paid Ohio residents add 6% tax Without judges wouldnt contest probably several other places theyd rather After first contest normal reac tion decide wasnt bad after especially everything went well big factor success proper preparation knowing what expect Both pilots control Good luck has long column rea lize exclusively about Aero batics owe sport fliers Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 RO ScalelWischers Continued page 51 otherwise severely abused cant quite agree philoso phy fuel propellers engines expendable items models interest winning obtaining high static score submerged engine Nev ertheless Mick has proved us possible build fly totally-believ able WW II fighter A-scale can have scalelike appearance both air during static judging ulti mate scale accuracy Mick has made own aluminum wheels tires formed Devcon RTV rubber compound Second place Abingdon awarded Duncan Hutson A-scale Avro Anson Mk 1 model large 84-in wingspan definitely un derpowered pair effectivelysilenced Irvine 30 engines serious competitors have adopted concept building multi-engined aircraft large possible staying within 132 lb weight-limit Duncan just barely stayed in-bounds very innova tive fellow used Sanwa sail winch model boat hobby operate handmade retract mechanisms land ing gear working oleo struts wheels tires silicone rubber airplanes Abiflgdon Anson least affected wind permitting ac curate placement its dropped bombs Steam power England paid another visit friend Group Captain James Pelly-Fry inspect newest Scale airplane Vickers Wellesley has modeled after prototype flown East African campaign early days Italys involvement WW II accounts have read about experiences aircraft James successfully landed night Sudan desert await dawn before returning base After unexpected return request replacement cancelled Wellesley extremely large airplane single Bristol Pegasus XX 935-horsepower engine having span 75 feet James model /0th scale 90-in wingspan weighed TA lb wing loading 20 oz per sq ft engine Enya 40 four-stroke no lack thrust fly large airplane As prototype model employed geodetic construction fu selage stringers wing ribs basketweave pattern over external sur faces models framework quite complex possible build very light strong framework meth od Rom-Air retracts very wide tread great stability ground James regular flying companions days David Parker Brian Taylor disused air base near homes southwest England Davids newest Scale model Grumman Tigercat F7F-l pair Enya 35 engines Rom-Air retracts Like scratch-builder Scale model ers David has streak inventive geni us long-term projects has development steam-powered model airplane has now reached stage successful five-minuteduration flights three-minute engine run four ounces ethyl alcohol fuel equal amount water Comet IIA model weighs 35 lbs fuel water has 62-in wingspan 630 sq wing area water-tube boiler fabricated thin sheet stainless steel brazed joints one-cylinder steam engine nose develops 24 ounces thrust hand-carved prop Heat exhausted through open holes boiler January1985 145 30 PACIFIC ACE Complete kit $750 plus $150 S & H Also Rearwin Speedster Cessna 34Fairey Battle Fairchild Ranger & Lam bert Monocoupe 30 Price $1000 Fa SEAGLEN MODEL CO BOX 123 Plympton MA 02367 Power Soar New Heights LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 top exhaust steam emitted engine barely-discernible jet High prop pitch absorbs energy constant pressure operation alcohol flame light ed match through hatch boiler side Pressure builds slowly until prop begins turn Flow air prop carried boiler draft tube scoop bottom current air quickly converts sim mering heater flash boiler stant] changes water steam Pressure rises Very rapidly 60 psi read tiny manometer boiler top con tinues hold value throughout three-minute engine run After fuel completely consumed little water remains drained air intake size boiler bottom determines rate fuel burning no wasted energy flame coming out top exhaust openings Comet model essentially Free Flight rudder control RC keep within flying field boundaries boiler forms main portion fuse lage nose attached front tail rear individual wing panels plugged boiler sides tubes Al together astounding flying machine Model boxes As seen Le Bourget Scale models have steadily increased size also strong movement con vince FAI permit increase model weight would have subse quent effect model size upward direction Since World Champion ships conducted Europe increase size poses problem transportation US team very fortunate have assistance TWA sales repre sentative handling monster-sized model boxes Washington-Dulles Airport De Gaulle Airport Paris boxes accepted excess bag gage because team members supporters departed group ques tionable whether such large boxes would have taken air freight exorbi tant cost problem has its beginning team trials nothing said about transport large models Everyone vited fly whatever airplanes will fit FAL rules winners naturally reluc tant make changes large model will fit smaller space would greater resistance sug gestion new aircraft designed built years time easily transportable now appears competitors need asked advance meet maximum standard box size past dimensions absolute maximum 24 x 36 x 72 stressed effort made have dimensions considerably less box too big wasnt per mitted board military transport planes carried us modeler would faced having make quick decision alternate transport using commercial airlines have become lax stipulation size TWA represen tative dismayed looked side oversize overweight boxes see vast empty spaces inside Hobbypoxy colors recently-released formulas mixing cor rect amounts Hobbypoxy paint standard military colors yellow blue commonly found trainers WW II few examples Stearman AT-6 SNJ Harvard Chipmunk T-28 other US British Canadian trainers yellow used United States train er aircraft ANA 614 Orange Yellow FS 13538 gloss FS 33538 matte finish color also known Iden tification Yellow Chrome Yellow Continued page 148 Statement Ownership Management Circulation Required 39 USC 3885 lA Title Publication Model Aviation 18 Publication No 087930 2 Date Filing October 181984 3 Frequency lasue Monthly A No issues published annually 12 B Annual aubacription price $1800 4 Complete Mailing Addreaa Known Office Publica tion atreet city county atate zi code print ers 1810 Samuel Morse Dr Reaton VA 22090 S Complete mailing address headquarters gen eral business otficesofthepublishernot printer 1810 Samuel Morse Dr Reston VA 22090 6 Full names complete mailing address publisher editor managing editor thia item must blank Publisher Carl R Wheeley 1810 Samuel Morse Dr Reston VA 22090 Editor Carl R Wheeley 1810 Samuel Morse Dr Res ton VA 22090 Managing editor None 7 Owner Academy Model Aeronautics Inc 1810 Samuel Morse Dr Reston VA 22090 8 Known bondholders mortgagees other security holders owning holding 1 percent total amount bonds mortgages other securities None 9 For completion nonprofit organizations authorized mail special rates Section 42312 0MM purpose function nonprofit status organi zation exempt status Federal income tax purposes 1 Has changed during preceding 12 months 10 Extent Nature Circulation Actual AverageNo copies No copiesof single issueissue duringpublished precedingnearest 12 monthsfiling date A Total No Copies Net Press Run7592583200 BPaid and/or Requested Cir culation 1Sales through dealers carriers street ven dors counter sales36213825 2Mail Subscriptions6890276336 C Total Paid and/or Requested Circulation Sum 1081 10827252380161 DFree Distribution Mail Carrier Other Means Samples Complimentary Other Free Copies24762445 ETotal Distribution Sum C D7499982606 FCopies Distributed 1 Office use leff over un accounted spoiled after printing601575 2 Returns News Agents32819 G Total Sum E Fl 2 should equal net press run shown A7892583200 11 I certifythat statements made correct complete Carl R Wheeley Editor Publisher 146 Model Aviation RjAY TA 1% ____I VL PRODUCTS FIELD BOX its four compartments VL FIELD BOX assembled Ready Go accommodate everything need pre pare take-off fast charger charger cables tools test meters gel cells etc made heavy duty corrugated Handle reinforced 1/8 masonite Off-white background printed blue black space marked name address etc side convenientCharging Schedule opposite side ---- always $ g readyforyourreference Imagine q Field Box y go nd support equipmentP~e$%r handling Calif residents add 29 safes tax Send $1 $0 tsr complett illustrated product CstaIa PRO DUCTS 7871 ALABAMA AVENUE CANOGA PARK F 91304 CLEVELAND GIANTSI NEW FOR GIANTIALE BUFFS~j worlds Largest Gas Plans Assarfme RNATIONALLY FAMOUS C-D OLIALITS MASTER MODELS PLANS 5450$evroielIe 21 $4 7BConeci cal PBV2A 542 72 car 02121/4 L&S $46 104 can car PBY5A 556 62 ilonnard Race Ike 54$96 WrisitNenyRao 54R- 77 Boeing B-i70 Porn 535 52 WWrr121 Rd L 536 i03 Bee 6170 P01 555 77WWn121 Red L 54$- 6$ $o,s v46A 06 $32..* 64 Pnkknr D7 Pr$39 i0B Siker S3$ Anph $49 60 90-card Pece Raie $32i- 60 Baa 100 Sport$36 70 Bayi O,Be $231 90 Ban isa Sport$49 60 Saprrrarine S6B $24 90 StinAtoa Wing $56 89 Saparnrorine S6B $32- 60 MorOn 74 T4M1 $29 62 carr tioak P6E $42 75 HPg 0400 $onh $42 94 c,9ok P6E Ptr 554n 104 HPg 0400 Ban $26 62 Lockheed Vega$24 65 Mchjna clip9 74 iSoalinie 06 11 548 97 92 Manacoape Sport$2668 60 9-li Spr Baildog $42 65 Ry 107 Aerenco c3 SF $25 68_______________ 61 Soosia 028 06 $22 77 k 122 Doaglo 02806 $49 72 N AM oh Ratok $49 94 Pog car Racer $40 62 M Ma oade 626 $49 71 Marlin 810 Baink $29 $1 OH Macqa Rb $42 78 Tamer WW 9cc 535 10809 Macqa Ronrb 555 f 02 car Oohk Pi 1C2 $42 va S ea PT 7Kaydet $56 ...-rjlr 94 car Oohk Pi12 $54 99 S6 09ev cone Ran 524 71 62 HoaMrMaillgan53595 94 HoooMr Malligon $45 56 62 Eceing P26A PIr$36log 84 Boeing P26A Ptru4860 69 Waco c cabin$2668 64 Beech C17B Stag $38 596 onnRaceMLA $54 96 Beech C17E Sras 549- 1070 Scant P87 524 ook Ii Eleorro $30 72 T an-cl 6008 $24 82 Lank 11 Elenrra $40 107 Mar MR Ban $44 62 Sriran 0 W 5R7 $16 91 Lindker9 NO211 029 61 Srinon 0 W S97 524 08 PairhPT19 Tr$59 122 Orincor T w 5R7538vOWaoo Tap Win0 O29~-cr 59 Brital Pr P26 $20 75 Worn 6 Lyand 78 Bridal PIr P26$32190 Werl d Lyander549 Il8 Oritol PIr P26$45tS7PardTrntr4AT828 74 TL Pecoc Spec$45r76 Par4 Trnrr 4 AT$45 62 Skyrooker OP5Pi$20114 Ford Trnrr 4 AT$59* 56 Car Warhk P40$2484 Ben Joyoe XPJ 2$56.. 7$ Lank Lishrng P38 $2893 Loer ag c OAnph$69 26RepSeaBeeAtn$54SAOanJ2P Dank$29 74 RepSeaB Anpht29780 J2 P Dank$56... 106 Piper 23 Cab$3959 Ontha OiV Bonn522 98 Lack Hadan Bnk $38117 Oalha OIV San$29 62 Oran P6P Hellcar52868 900952 Taer Mnrh$3954 Nor Sold Thra DenierPri 01cO Peico iooCanea Oral On-cr 1200 Odrer, 6 73 Add 10% order h USA Can & Moo EIenher Pictorial catolag 52 00 lioclade Price Licrl Prine lir ancrian clone 5100 air tore9- add $100 CLEVELANDMODEL&SUPPLY Co 7B SETROiT AVE cLEMBLANS OHiO 44182 Poor Seroce 1L S0n 01030002990 3000,,4 Robson House Hobby Supplies 222 Clareview Road 0-3 Edmonton Alta Can T5A 3Y5 MC VISA No _________________________ ExpeaFoe Date _________________________________ Signature Name Street Cay State Please alow 3 weeks estra o cueces Invited join National Soaring Society OFFICIAL SOARING SPECIAL INTEREST GROUP YEARLY NATIONAL TOURNAMENTS NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT BI-MONTHLY NEWSLETTER NSS CONTRIBUTES SUBSTANTIAL AMOUNTS TO EACH F3B SOARING TEAM NSS IS RESPONSIBLE FOR THE ORGANIZATION AND OVERSEEING OF AMA NATS INCLUDING AWARDS BANGUET YEARLY DUES ARE 51200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS pL % 9 4z S 0 Informaton Contact JOHN R VOGEL 906 ORCHARD PARK DR GIBSONIA PA 15044 148 Model Aviation depending what reference source used blue used fuselages Stear mans other similar trainers also referred different names sometimes called ANA 501 Light Blue some times True Blue federal standard number ES 15102 paint glossy British Canadian trainers painted yellow also RAE RCAF color being called simply Yellow sample Hobbypoxy reference material matte contem porary aircraft can glossy well formulas ANA 614 Orange Yellow 20 parts H49 Cub Yellow four parts H47 Bright Yellow part H66 Dark Red part H1O White ANA 501 Light Bluefour parts H25 Sky Blue three parts H24 Dark Blue part H65 Bright Red part H67 Maroon RAF/RCAF Yellownine parts H49 Cub Yellow seven parts H47 Bright Yellow three parts H55 Cream two parts H66 Dark Red Eor matte finish mix 11 Hobby poxy HOS Elat Hardener Eor gloss fin ish use either H02 H06 Gloss Quick Spray Hardeners Hobbypoxy has revised updated its Hobbypoxy Painting Pointers Brochure 1985 four-page booklet describes products extensive line finishing materials gives complete structions use Expert methods priming finishing bare balsa fiberglass epoxy glass molded plastics discussed Information giv en painting trimming various types iron-on covering materials greatest interest modelers will highly-detailed very thorough sec tion spray painting techniques includ ing selection proper airbrush compressor equipment brochure available mail no cost Request copy Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Box 378 Rockaway NJ 07866-0378 Bob Dolly Wischer S-221 Lapham Peak Rd Delafleld WI 53018 RC ElectrlcslKopski Continued page 53 tory everyone Electric OT anyway Same reas ons some folks fly Peanut scale some CL Carrier some RC Helicopterits fun theres something else too getting more fun damental concern kind gaspowered flying Remember school yard mentioned above Such event schoolyard exception Erom what can determine schoolyards closed model flying bet lot would change clean quiet Elec tric power Get point Before getting main event month want recall attention lead photo column Sep tember issue mystery plane pictured open structure brought three writ ten responsesall correct naming model Lockheed Constellation No guessed builder Heinz Koerner Heinz gentleman runs Clin ic annual KRC Electric Ely Connie second first completed technical reasons larger mishap few weeks prior years Electric Ely repaired time event Look next year As promised last column month will describe results date severalmonth experiment involving power system makeup Electrics may recall visitor field sum mer Tom southern California told high rate-of-climb preference Electric gliders out turf compared slower though longer power ascent out way decided try way same time put further test long-held tenet its battery other things being equal determines average total flight time such plane chose now-frequent example Spectra Soar design boring because have lots historic data Some data graphed Part Seven MAs Electric Series March 1984 flight histogram presented showed very clearly average flight time about 13-14 minutes hundreds flights six-cell 12 Ah battery various 05-sized motors data flying generally evening weekend morning air no obvious lift present decided install Cobalt 15 suit able battery trying maintain same weight balance etc Erom bench data knew Cobalt 15 7 x 6 nylon nine cells should have static put power level about 140 wattsmuch before vastly needed just cruise plane worked out very well Both OS motor six-l 2 Ah-cell system Cobalt 15 nine-O8 Ah-cell system weigh about 18A oz although new battery about oz lighter felt certainly close enough make valid test argu ment total flight time should about same both power systems same time give taste significantly faster rate climb shorter total motor-run time Indeed power combination proved definitely much faster-climbing replaced useful power run time just definitely much shorter expected nine 08 Ah Sanyo cells assembled pack would fit exactly six pack 12 Ah cells beenincluding interfacing exist ing cooling-air exit holes cells spaced balsa sticks accomplish assembly held together clear silicone adhesive later proved inadequate adhesive and
Edition: Model Aviation - 1985/01
Page Numbers: 50, 51, 145, 146, 148
Radio Contml Scale Bob & Dolly Wischer FRANCE AND ENGLAND trip Paris Scale World Championships cluded experiences Scale models seen modelers met report meet couldnt possibly have touched events airplanes par ticularly follow-up included crossing Channel visit Scale contest Abingdon England LeBourget World Meet Peter McDermotts Sopwith Snipe sec ond highest static score good reason two-year project 7F 1 Snipe exquisitely detailed -scale reproduction WW fighter Canadian National Aeronautical Collec tion Ottawa models 1 A-lb dum Bentley rotary engine mounted large ball bearing race cylinders turned aluminum actually rotated exhaust stream Magnum 91 four-stroke engine hides view Valve pushrods spark plugs faithfully reproduced weighty mass continues spin after Magnum prop have stopped impressive prototypical Gyroscop ic action spinning mass seems have no effect flight An additional half-pound lead brings total noseweight over two lb extra weight 745-in-wingspan Snipe weighs 128 lb Other exceptional features rib stitch es made real thread stabilizer cidence adjustable cockpit original Peter made rigging wires 028 music wire covered flattened plastic tubing wire ends soldered tubing terminals right left threads length adjust ments can made twisting wire also copied full-scale practice wing loading 20 oz per sq ft Snipe flew well light wind condi tions Le Bourget Engine fuel prob lems limited power output kept its flight scores unreasonably low fin ished fourteenth place As often hap pens competition little obstacles keep great airplane Grumman F7F-1 Tigercat L latest Scale project David Parker Martock England pair Enys 35s power 9-lb fighter Construction -oz glass cloth over planked-baisa fuselage foam wing uses Rom-Air retracts Britains finest craftsmen Duncan Hutson built thIs fine Avro Anson R Power twin Irvine 30s Model weIghs 131 lb has hand-made re tracting gear tires gears 0160 shock struts operational Craft spans 84 finished K&B Suparpoxy over nylon 50 Model Aviation Paris operational dummy rotary engine Peter McDermotts Scpwlth Snipe i support ed ball bearing impelled exhaust stream Magnum 91 four-stroke hiding behind IL tiny data plate cowl gIves Bentley engine specificatIons model second-hIghest statIc score Scale World Champs England Group Captain James Peily-Fry Fivehead England flew prototype Vickers Wellealey model i A-scale African campaign WW ii Finish 90-in-span bomber Humbrol paint over nylon Polykote fuel-proofer An Enys 40 fourstroke files thIs 7-lb 10-oz ship easily Plane has Rom-Air retracts doing well met Peter McDermott again Abingdon Scale contest England week after conclusion Paris meet Abingdon partially-disused military air base central England near Oxford plenty space separate RC CL areas contest used FAT rules bonus system effect RC saw no trophy prize awards Weather contest contrast Paris cool blustery constant threat rain Peters airplane meeet Bowers Fly Baby wise choice existing weather conditions Winner contest Mick Reeves fabulous new Hawker Hurricane best flight made during gusty rainstorm everyone scoring judges searched shelter Soaking-wet score sheets must have difficult mark Micks high flight scores largely attributable Hurricanes ability fly speed attitude provides scale appearance Le Bourget Enya 90 four-stroke seemed over heat due mostly lack ventilating air completely-cowled engine ly air inlets around periphery spinner through simulated coolant radiator under wing Air out lets through dummy Merlin ex haust pipes Abingdon cooler weather secmed benefit Enya Continued ae 145 Steam powerl model Isnt scale its builder David Parker usually builds Scale However hes striving make opera tional steampowered model some time Plane files average live minutes threeminute enginerun consumes four ounces alcohol fuel four ounces water Ship actually RC-assist Free Flight model rudderoniy takes off weight 31/i ib Steam engine drives handcarved prop generates thrust 24 oz Closeup nose bolier R shows stainless steci firetube flash boiler constitutes maIn fuselage sectIon Comet ha Heat fire escapes through double row holes Lateral tube wing fastening Visible atop fuselage just behind wlngtube steam pressure manometer reads 60 psi EIGHTH ANNUAL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT L ENGINES MODEL BOATS O CONTROL SYSTEMS *SWAP SHOP MODEL CARS LING ACCESSORIES *GIANT RAFFLE WIN TWO FIRST CLASS ROUND TRIP TICKETS GOOD FOR TRAVEL BETWEEN ANY TWO CITIES IN THE USA SERVED BY DELTA AIR LINES INCLUDING NASSAU BERMUDA AND SAN JUAN! STATIC DISPLAY COMPETITION IN MANY CATEGORIES January1985 51 JANUARY 12 & 13 1985 U IU VLH5LA IWI UHIS UUHUIA L L Y IN Vi LUI INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Costa Mesa CA 92627 Ph 714 5484700 645-88301 Perma-Grit TM Lifetime * Carbide Sanding Tools Tungsten Carbide grit hardest material next diamondp * Outlasts sandpaper 100s timesTungsten carbide grit brazed * Tools will load upsteel 9 long tool use * Grit cant tear looseon balsa hardwoods fiberglass * Makes fitting blending fairing pleasurebeaded foams epoxy fillers * Fairs LE TE foam undercuttingplexiglas * Rapid stock Removal better control * Saves time money end aggravation e USA * Replaces plane knite rasp fr sanding blocks Average Modelers Use F-tOOFlat Coarse/Fine$695 excellent tools thatF-lOt Flat Fine$695 modeler can useF- 102Flat Coarse$695 Don Lowe Professional EngineerR-200 3/4 Radius Coarse/Fine$695 Ask Dealer send check MO No CODs to 1-201 1/8 Tangent Coarse/Fine $695 1-202 3/4 Round Coarse/Fine$625 DIG Products_ 1203 d- Coarse/fine$495 209 Carrlands Dr Dayton 0*4 454291204 d- Coarse/Fine $495 o 94-1192 tage Paid Ohio residents add 6% tax Without judges wouldnt contest probably several other places theyd rather After first contest normal reac tion decide wasnt bad after especially everything went well big factor success proper preparation knowing what expect Both pilots control Good luck has long column rea lize exclusively about Aero batics owe sport fliers Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 RO ScalelWischers Continued page 51 otherwise severely abused cant quite agree philoso phy fuel propellers engines expendable items models interest winning obtaining high static score submerged engine Nev ertheless Mick has proved us possible build fly totally-believ able WW II fighter A-scale can have scalelike appearance both air during static judging ulti mate scale accuracy Mick has made own aluminum wheels tires formed Devcon RTV rubber compound Second place Abingdon awarded Duncan Hutson A-scale Avro Anson Mk 1 model large 84-in wingspan definitely un derpowered pair effectivelysilenced Irvine 30 engines serious competitors have adopted concept building multi-engined aircraft large possible staying within 132 lb weight-limit Duncan just barely stayed in-bounds very innova tive fellow used Sanwa sail winch model boat hobby operate handmade retract mechanisms land ing gear working oleo struts wheels tires silicone rubber airplanes Abiflgdon Anson least affected wind permitting ac curate placement its dropped bombs Steam power England paid another visit friend Group Captain James Pelly-Fry inspect newest Scale airplane Vickers Wellesley has modeled after prototype flown East African campaign early days Italys involvement WW II accounts have read about experiences aircraft James successfully landed night Sudan desert await dawn before returning base After unexpected return request replacement cancelled Wellesley extremely large airplane single Bristol Pegasus XX 935-horsepower engine having span 75 feet James model /0th scale 90-in wingspan weighed TA lb wing loading 20 oz per sq ft engine Enya 40 four-stroke no lack thrust fly large airplane As prototype model employed geodetic construction fu selage stringers wing ribs basketweave pattern over external sur faces models framework quite complex possible build very light strong framework meth od Rom-Air retracts very wide tread great stability ground James regular flying companions days David Parker Brian Taylor disused air base near homes southwest England Davids newest Scale model Grumman Tigercat F7F-l pair Enya 35 engines Rom-Air retracts Like scratch-builder Scale model ers David has streak inventive geni us long-term projects has development steam-powered model airplane has now reached stage successful five-minuteduration flights three-minute engine run four ounces ethyl alcohol fuel equal amount water Comet IIA model weighs 35 lbs fuel water has 62-in wingspan 630 sq wing area water-tube boiler fabricated thin sheet stainless steel brazed joints one-cylinder steam engine nose develops 24 ounces thrust hand-carved prop Heat exhausted through open holes boiler January1985 145 30 PACIFIC ACE Complete kit $750 plus $150 S & H Also Rearwin Speedster Cessna 34Fairey Battle Fairchild Ranger & Lam bert Monocoupe 30 Price $1000 Fa SEAGLEN MODEL CO BOX 123 Plympton MA 02367 Power Soar New Heights LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 top exhaust steam emitted engine barely-discernible jet High prop pitch absorbs energy constant pressure operation alcohol flame light ed match through hatch boiler side Pressure builds slowly until prop begins turn Flow air prop carried boiler draft tube scoop bottom current air quickly converts sim mering heater flash boiler stant] changes water steam Pressure rises Very rapidly 60 psi read tiny manometer boiler top con tinues hold value throughout three-minute engine run After fuel completely consumed little water remains drained air intake size boiler bottom determines rate fuel burning no wasted energy flame coming out top exhaust openings Comet model essentially Free Flight rudder control RC keep within flying field boundaries boiler forms main portion fuse lage nose attached front tail rear individual wing panels plugged boiler sides tubes Al together astounding flying machine Model boxes As seen Le Bourget Scale models have steadily increased size also strong movement con vince FAI permit increase model weight would have subse quent effect model size upward direction Since World Champion ships conducted Europe increase size poses problem transportation US team very fortunate have assistance TWA sales repre sentative handling monster-sized model boxes Washington-Dulles Airport De Gaulle Airport Paris boxes accepted excess bag gage because team members supporters departed group ques tionable whether such large boxes would have taken air freight exorbi tant cost problem has its beginning team trials nothing said about transport large models Everyone vited fly whatever airplanes will fit FAL rules winners naturally reluc tant make changes large model will fit smaller space would greater resistance sug gestion new aircraft designed built years time easily transportable now appears competitors need asked advance meet maximum standard box size past dimensions absolute maximum 24 x 36 x 72 stressed effort made have dimensions considerably less box too big wasnt per mitted board military transport planes carried us modeler would faced having make quick decision alternate transport using commercial airlines have become lax stipulation size TWA represen tative dismayed looked side oversize overweight boxes see vast empty spaces inside Hobbypoxy colors recently-released formulas mixing cor rect amounts Hobbypoxy paint standard military colors yellow blue commonly found trainers WW II few examples Stearman AT-6 SNJ Harvard Chipmunk T-28 other US British Canadian trainers yellow used United States train er aircraft ANA 614 Orange Yellow FS 13538 gloss FS 33538 matte finish color also known Iden tification Yellow Chrome Yellow Continued page 148 Statement Ownership Management Circulation Required 39 USC 3885 lA Title Publication Model Aviation 18 Publication No 087930 2 Date Filing October 181984 3 Frequency lasue Monthly A No issues published annually 12 B Annual aubacription price $1800 4 Complete Mailing Addreaa Known Office Publica tion atreet city county atate zi code print ers 1810 Samuel Morse Dr Reaton VA 22090 S Complete mailing address headquarters gen eral business otficesofthepublishernot printer 1810 Samuel Morse Dr Reston VA 22090 6 Full names complete mailing address publisher editor managing editor thia item must blank Publisher Carl R Wheeley 1810 Samuel Morse Dr Reston VA 22090 Editor Carl R Wheeley 1810 Samuel Morse Dr Res ton VA 22090 Managing editor None 7 Owner Academy Model Aeronautics Inc 1810 Samuel Morse Dr Reston VA 22090 8 Known bondholders mortgagees other security holders owning holding 1 percent total amount bonds mortgages other securities None 9 For completion nonprofit organizations authorized mail special rates Section 42312 0MM purpose function nonprofit status organi zation exempt status Federal income tax purposes 1 Has changed during preceding 12 months 10 Extent Nature Circulation Actual AverageNo copies No copiesof single issueissue duringpublished precedingnearest 12 monthsfiling date A Total No Copies Net Press Run7592583200 BPaid and/or Requested Cir culation 1Sales through dealers carriers street ven dors counter sales36213825 2Mail Subscriptions6890276336 C Total Paid and/or Requested Circulation Sum 1081 10827252380161 DFree Distribution Mail Carrier Other Means Samples Complimentary Other Free Copies24762445 ETotal Distribution Sum C D7499982606 FCopies Distributed 1 Office use leff over un accounted spoiled after printing601575 2 Returns News Agents32819 G Total Sum E Fl 2 should equal net press run shown A7892583200 11 I certifythat statements made correct complete Carl R Wheeley Editor Publisher 146 Model Aviation RjAY TA 1% ____I VL PRODUCTS FIELD BOX its four compartments VL FIELD BOX assembled Ready Go accommodate everything need pre pare take-off fast charger charger cables tools test meters gel cells etc made heavy duty corrugated Handle reinforced 1/8 masonite Off-white background printed blue black space marked name address etc side convenientCharging Schedule opposite side ---- always $ g readyforyourreference Imagine q Field Box y go nd support equipmentP~e$%r handling Calif residents add 29 safes tax Send $1 $0 tsr complett illustrated product CstaIa PRO DUCTS 7871 ALABAMA AVENUE CANOGA PARK F 91304 CLEVELAND GIANTSI NEW FOR GIANTIALE BUFFS~j worlds Largest Gas Plans Assarfme RNATIONALLY FAMOUS C-D OLIALITS MASTER MODELS PLANS 5450$evroielIe 21 $4 7BConeci cal PBV2A 542 72 car 02121/4 L&S $46 104 can car PBY5A 556 62 ilonnard Race Ike 54$96 WrisitNenyRao 54R- 77 Boeing B-i70 Porn 535 52 WWrr121 Rd L 536 i03 Bee 6170 P01 555 77WWn121 Red L 54$- 6$ $o,s v46A 06 $32..* 64 Pnkknr D7 Pr$39 i0B Siker S3$ Anph $49 60 90-card Pece Raie $32i- 60 Baa 100 Sport$36 70 Bayi O,Be $231 90 Ban isa Sport$49 60 Saprrrarine S6B $24 90 StinAtoa Wing $56 89 Saparnrorine S6B $32- 60 MorOn 74 T4M1 $29 62 carr tioak P6E $42 75 HPg 0400 $onh $42 94 c,9ok P6E Ptr 554n 104 HPg 0400 Ban $26 62 Lockheed Vega$24 65 Mchjna clip9 74 iSoalinie 06 11 548 97 92 Manacoape Sport$2668 60 9-li Spr Baildog $42 65 Ry 107 Aerenco c3 SF $25 68_______________ 61 Soosia 028 06 $22 77 k 122 Doaglo 02806 $49 72 N AM oh Ratok $49 94 Pog car Racer $40 62 M Ma oade 626 $49 71 Marlin 810 Baink $29 $1 OH Macqa Rb $42 78 Tamer WW 9cc 535 10809 Macqa Ronrb 555 f 02 car Oohk Pi 1C2 $42 va S ea PT 7Kaydet $56 ...-rjlr 94 car Oohk Pi12 $54 99 S6 09ev cone Ran 524 71 62 HoaMrMaillgan53595 94 HoooMr Malligon $45 56 62 Eceing P26A PIr$36log 84 Boeing P26A Ptru4860 69 Waco c cabin$2668 64 Beech C17B Stag $38 596 onnRaceMLA $54 96 Beech C17E Sras 549- 1070 Scant P87 524 ook Ii Eleorro $30 72 T an-cl 6008 $24 82 Lank 11 Elenrra $40 107 Mar MR Ban $44 62 Sriran 0 W 5R7 $16 91 Lindker9 NO211 029 61 Srinon 0 W S97 524 08 PairhPT19 Tr$59 122 Orincor T w 5R7538vOWaoo Tap Win0 O29~-cr 59 Brital Pr P26 $20 75 Worn 6 Lyand 78 Bridal PIr P26$32190 Werl d Lyander549 Il8 Oritol PIr P26$45tS7PardTrntr4AT828 74 TL Pecoc Spec$45r76 Par4 Trnrr 4 AT$45 62 Skyrooker OP5Pi$20114 Ford Trnrr 4 AT$59* 56 Car Warhk P40$2484 Ben Joyoe XPJ 2$56.. 7$ Lank Lishrng P38 $2893 Loer ag c OAnph$69 26RepSeaBeeAtn$54SAOanJ2P Dank$29 74 RepSeaB Anpht29780 J2 P Dank$56... 106 Piper 23 Cab$3959 Ontha OiV Bonn522 98 Lack Hadan Bnk $38117 Oalha OIV San$29 62 Oran P6P Hellcar52868 900952 Taer Mnrh$3954 Nor Sold Thra DenierPri 01cO Peico iooCanea Oral On-cr 1200 Odrer, 6 73 Add 10% order h USA Can & Moo EIenher Pictorial catolag 52 00 lioclade Price Licrl Prine lir ancrian clone 5100 air tore9- add $100 CLEVELANDMODEL&SUPPLY Co 7B SETROiT AVE cLEMBLANS OHiO 44182 Poor Seroce 1L S0n 01030002990 3000,,4 Robson House Hobby Supplies 222 Clareview Road 0-3 Edmonton Alta Can T5A 3Y5 MC VISA No _________________________ ExpeaFoe Date _________________________________ Signature Name Street Cay State Please alow 3 weeks estra o cueces Invited join National Soaring Society OFFICIAL SOARING SPECIAL INTEREST GROUP YEARLY NATIONAL TOURNAMENTS NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT BI-MONTHLY NEWSLETTER NSS CONTRIBUTES SUBSTANTIAL AMOUNTS TO EACH F3B SOARING TEAM NSS IS RESPONSIBLE FOR THE ORGANIZATION AND OVERSEEING OF AMA NATS INCLUDING AWARDS BANGUET YEARLY DUES ARE 51200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS pL % 9 4z S 0 Informaton Contact JOHN R VOGEL 906 ORCHARD PARK DR GIBSONIA PA 15044 148 Model Aviation depending what reference source used blue used fuselages Stear mans other similar trainers also referred different names sometimes called ANA 501 Light Blue some times True Blue federal standard number ES 15102 paint glossy British Canadian trainers painted yellow also RAE RCAF color being called simply Yellow sample Hobbypoxy reference material matte contem porary aircraft can glossy well formulas ANA 614 Orange Yellow 20 parts H49 Cub Yellow four parts H47 Bright Yellow part H66 Dark Red part H1O White ANA 501 Light Bluefour parts H25 Sky Blue three parts H24 Dark Blue part H65 Bright Red part H67 Maroon RAF/RCAF Yellownine parts H49 Cub Yellow seven parts H47 Bright Yellow three parts H55 Cream two parts H66 Dark Red Eor matte finish mix 11 Hobby poxy HOS Elat Hardener Eor gloss fin ish use either H02 H06 Gloss Quick Spray Hardeners Hobbypoxy has revised updated its Hobbypoxy Painting Pointers Brochure 1985 four-page booklet describes products extensive line finishing materials gives complete structions use Expert methods priming finishing bare balsa fiberglass epoxy glass molded plastics discussed Information giv en painting trimming various types iron-on covering materials greatest interest modelers will highly-detailed very thorough sec tion spray painting techniques includ ing selection proper airbrush compressor equipment brochure available mail no cost Request copy Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Box 378 Rockaway NJ 07866-0378 Bob Dolly Wischer S-221 Lapham Peak Rd Delafleld WI 53018 RC ElectrlcslKopski Continued page 53 tory everyone Electric OT anyway Same reas ons some folks fly Peanut scale some CL Carrier some RC Helicopterits fun theres something else too getting more fun damental concern kind gaspowered flying Remember school yard mentioned above Such event schoolyard exception Erom what can determine schoolyards closed model flying bet lot would change clean quiet Elec tric power Get point Before getting main event month want recall attention lead photo column Sep tember issue mystery plane pictured open structure brought three writ ten responsesall correct naming model Lockheed Constellation No guessed builder Heinz Koerner Heinz gentleman runs Clin ic annual KRC Electric Ely Connie second first completed technical reasons larger mishap few weeks prior years Electric Ely repaired time event Look next year As promised last column month will describe results date severalmonth experiment involving power system makeup Electrics may recall visitor field sum mer Tom southern California told high rate-of-climb preference Electric gliders out turf compared slower though longer power ascent out way decided try way same time put further test long-held tenet its battery other things being equal determines average total flight time such plane chose now-frequent example Spectra Soar design boring because have lots historic data Some data graphed Part Seven MAs Electric Series March 1984 flight histogram presented showed very clearly average flight time about 13-14 minutes hundreds flights six-cell 12 Ah battery various 05-sized motors data flying generally evening weekend morning air no obvious lift present decided install Cobalt 15 suit able battery trying maintain same weight balance etc Erom bench data knew Cobalt 15 7 x 6 nylon nine cells should have static put power level about 140 wattsmuch before vastly needed just cruise plane worked out very well Both OS motor six-l 2 Ah-cell system Cobalt 15 nine-O8 Ah-cell system weigh about 18A oz although new battery about oz lighter felt certainly close enough make valid test argu ment total flight time should about same both power systems same time give taste significantly faster rate climb shorter total motor-run time Indeed power combination proved definitely much faster-climbing replaced useful power run time just definitely much shorter expected nine 08 Ah Sanyo cells assembled pack would fit exactly six pack 12 Ah cells beenincluding interfacing exist ing cooling-air exit holes cells spaced balsa sticks accomplish assembly held together clear silicone adhesive later proved inadequate adhesive and
Edition: Model Aviation - 1985/01
Page Numbers: 50, 51, 145, 146, 148
Radio Contml Scale Bob & Dolly Wischer FRANCE AND ENGLAND trip Paris Scale World Championships cluded experiences Scale models seen modelers met report meet couldnt possibly have touched events airplanes par ticularly follow-up included crossing Channel visit Scale contest Abingdon England LeBourget World Meet Peter McDermotts Sopwith Snipe sec ond highest static score good reason two-year project 7F 1 Snipe exquisitely detailed -scale reproduction WW fighter Canadian National Aeronautical Collec tion Ottawa models 1 A-lb dum Bentley rotary engine mounted large ball bearing race cylinders turned aluminum actually rotated exhaust stream Magnum 91 four-stroke engine hides view Valve pushrods spark plugs faithfully reproduced weighty mass continues spin after Magnum prop have stopped impressive prototypical Gyroscop ic action spinning mass seems have no effect flight An additional half-pound lead brings total noseweight over two lb extra weight 745-in-wingspan Snipe weighs 128 lb Other exceptional features rib stitch es made real thread stabilizer cidence adjustable cockpit original Peter made rigging wires 028 music wire covered flattened plastic tubing wire ends soldered tubing terminals right left threads length adjust ments can made twisting wire also copied full-scale practice wing loading 20 oz per sq ft Snipe flew well light wind condi tions Le Bourget Engine fuel prob lems limited power output kept its flight scores unreasonably low fin ished fourteenth place As often hap pens competition little obstacles keep great airplane Grumman F7F-1 Tigercat L latest Scale project David Parker Martock England pair Enys 35s power 9-lb fighter Construction -oz glass cloth over planked-baisa fuselage foam wing uses Rom-Air retracts Britains finest craftsmen Duncan Hutson built thIs fine Avro Anson R Power twin Irvine 30s Model weIghs 131 lb has hand-made re tracting gear tires gears 0160 shock struts operational Craft spans 84 finished K&B Suparpoxy over nylon 50 Model Aviation Paris operational dummy rotary engine Peter McDermotts Scpwlth Snipe i support ed ball bearing impelled exhaust stream Magnum 91 four-stroke hiding behind IL tiny data plate cowl gIves Bentley engine specificatIons model second-hIghest statIc score Scale World Champs England Group Captain James Peily-Fry Fivehead England flew prototype Vickers Wellealey model i A-scale African campaign WW ii Finish 90-in-span bomber Humbrol paint over nylon Polykote fuel-proofer An Enys 40 fourstroke files thIs 7-lb 10-oz ship easily Plane has Rom-Air retracts doing well met Peter McDermott again Abingdon Scale contest England week after conclusion Paris meet Abingdon partially-disused military air base central England near Oxford plenty space separate RC CL areas contest used FAT rules bonus system effect RC saw no trophy prize awards Weather contest contrast Paris cool blustery constant threat rain Peters airplane meeet Bowers Fly Baby wise choice existing weather conditions Winner contest Mick Reeves fabulous new Hawker Hurricane best flight made during gusty rainstorm everyone scoring judges searched shelter Soaking-wet score sheets must have difficult mark Micks high flight scores largely attributable Hurricanes ability fly speed attitude provides scale appearance Le Bourget Enya 90 four-stroke seemed over heat due mostly lack ventilating air completely-cowled engine ly air inlets around periphery spinner through simulated coolant radiator under wing Air out lets through dummy Merlin ex haust pipes Abingdon cooler weather secmed benefit Enya Continued ae 145 Steam powerl model Isnt scale its builder David Parker usually builds Scale However hes striving make opera tional steampowered model some time Plane files average live minutes threeminute enginerun consumes four ounces alcohol fuel four ounces water Ship actually RC-assist Free Flight model rudderoniy takes off weight 31/i ib Steam engine drives handcarved prop generates thrust 24 oz Closeup nose bolier R shows stainless steci firetube flash boiler constitutes maIn fuselage sectIon Comet ha Heat fire escapes through double row holes Lateral tube wing fastening Visible atop fuselage just behind wlngtube steam pressure manometer reads 60 psi EIGHTH ANNUAL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT L ENGINES MODEL BOATS O CONTROL SYSTEMS *SWAP SHOP MODEL CARS LING ACCESSORIES *GIANT RAFFLE WIN TWO FIRST CLASS ROUND TRIP TICKETS GOOD FOR TRAVEL BETWEEN ANY TWO CITIES IN THE USA SERVED BY DELTA AIR LINES INCLUDING NASSAU BERMUDA AND SAN JUAN! STATIC DISPLAY COMPETITION IN MANY CATEGORIES January1985 51 JANUARY 12 & 13 1985 U IU VLH5LA IWI UHIS UUHUIA L L Y IN Vi LUI INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Costa Mesa CA 92627 Ph 714 5484700 645-88301 Perma-Grit TM Lifetime * Carbide Sanding Tools Tungsten Carbide grit hardest material next diamondp * Outlasts sandpaper 100s timesTungsten carbide grit brazed * Tools will load upsteel 9 long tool use * Grit cant tear looseon balsa hardwoods fiberglass * Makes fitting blending fairing pleasurebeaded foams epoxy fillers * Fairs LE TE foam undercuttingplexiglas * Rapid stock Removal better control * Saves time money end aggravation e USA * Replaces plane knite rasp fr sanding blocks Average Modelers Use F-tOOFlat Coarse/Fine$695 excellent tools thatF-lOt Flat Fine$695 modeler can useF- 102Flat Coarse$695 Don Lowe Professional EngineerR-200 3/4 Radius Coarse/Fine$695 Ask Dealer send check MO No CODs to 1-201 1/8 Tangent Coarse/Fine $695 1-202 3/4 Round Coarse/Fine$625 DIG Products_ 1203 d- Coarse/fine$495 209 Carrlands Dr Dayton 0*4 454291204 d- Coarse/Fine $495 o 94-1192 tage Paid Ohio residents add 6% tax Without judges wouldnt contest probably several other places theyd rather After first contest normal reac tion decide wasnt bad after especially everything went well big factor success proper preparation knowing what expect Both pilots control Good luck has long column rea lize exclusively about Aero batics owe sport fliers Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 RO ScalelWischers Continued page 51 otherwise severely abused cant quite agree philoso phy fuel propellers engines expendable items models interest winning obtaining high static score submerged engine Nev ertheless Mick has proved us possible build fly totally-believ able WW II fighter A-scale can have scalelike appearance both air during static judging ulti mate scale accuracy Mick has made own aluminum wheels tires formed Devcon RTV rubber compound Second place Abingdon awarded Duncan Hutson A-scale Avro Anson Mk 1 model large 84-in wingspan definitely un derpowered pair effectivelysilenced Irvine 30 engines serious competitors have adopted concept building multi-engined aircraft large possible staying within 132 lb weight-limit Duncan just barely stayed in-bounds very innova tive fellow used Sanwa sail winch model boat hobby operate handmade retract mechanisms land ing gear working oleo struts wheels tires silicone rubber airplanes Abiflgdon Anson least affected wind permitting ac curate placement its dropped bombs Steam power England paid another visit friend Group Captain James Pelly-Fry inspect newest Scale airplane Vickers Wellesley has modeled after prototype flown East African campaign early days Italys involvement WW II accounts have read about experiences aircraft James successfully landed night Sudan desert await dawn before returning base After unexpected return request replacement cancelled Wellesley extremely large airplane single Bristol Pegasus XX 935-horsepower engine having span 75 feet James model /0th scale 90-in wingspan weighed TA lb wing loading 20 oz per sq ft engine Enya 40 four-stroke no lack thrust fly large airplane As prototype model employed geodetic construction fu selage stringers wing ribs basketweave pattern over external sur faces models framework quite complex possible build very light strong framework meth od Rom-Air retracts very wide tread great stability ground James regular flying companions days David Parker Brian Taylor disused air base near homes southwest England Davids newest Scale model Grumman Tigercat F7F-l pair Enya 35 engines Rom-Air retracts Like scratch-builder Scale model ers David has streak inventive geni us long-term projects has development steam-powered model airplane has now reached stage successful five-minuteduration flights three-minute engine run four ounces ethyl alcohol fuel equal amount water Comet IIA model weighs 35 lbs fuel water has 62-in wingspan 630 sq wing area water-tube boiler fabricated thin sheet stainless steel brazed joints one-cylinder steam engine nose develops 24 ounces thrust hand-carved prop Heat exhausted through open holes boiler January1985 145 30 PACIFIC ACE Complete kit $750 plus $150 S & H Also Rearwin Speedster Cessna 34Fairey Battle Fairchild Ranger & Lam bert Monocoupe 30 Price $1000 Fa SEAGLEN MODEL CO BOX 123 Plympton MA 02367 Power Soar New Heights LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 top exhaust steam emitted engine barely-discernible jet High prop pitch absorbs energy constant pressure operation alcohol flame light ed match through hatch boiler side Pressure builds slowly until prop begins turn Flow air prop carried boiler draft tube scoop bottom current air quickly converts sim mering heater flash boiler stant] changes water steam Pressure rises Very rapidly 60 psi read tiny manometer boiler top con tinues hold value throughout three-minute engine run After fuel completely consumed little water remains drained air intake size boiler bottom determines rate fuel burning no wasted energy flame coming out top exhaust openings Comet model essentially Free Flight rudder control RC keep within flying field boundaries boiler forms main portion fuse lage nose attached front tail rear individual wing panels plugged boiler sides tubes Al together astounding flying machine Model boxes As seen Le Bourget Scale models have steadily increased size also strong movement con vince FAI permit increase model weight would have subse quent effect model size upward direction Since World Champion ships conducted Europe increase size poses problem transportation US team very fortunate have assistance TWA sales repre sentative handling monster-sized model boxes Washington-Dulles Airport De Gaulle Airport Paris boxes accepted excess bag gage because team members supporters departed group ques tionable whether such large boxes would have taken air freight exorbi tant cost problem has its beginning team trials nothing said about transport large models Everyone vited fly whatever airplanes will fit FAL rules winners naturally reluc tant make changes large model will fit smaller space would greater resistance sug gestion new aircraft designed built years time easily transportable now appears competitors need asked advance meet maximum standard box size past dimensions absolute maximum 24 x 36 x 72 stressed effort made have dimensions considerably less box too big wasnt per mitted board military transport planes carried us modeler would faced having make quick decision alternate transport using commercial airlines have become lax stipulation size TWA represen tative dismayed looked side oversize overweight boxes see vast empty spaces inside Hobbypoxy colors recently-released formulas mixing cor rect amounts Hobbypoxy paint standard military colors yellow blue commonly found trainers WW II few examples Stearman AT-6 SNJ Harvard Chipmunk T-28 other US British Canadian trainers yellow used United States train er aircraft ANA 614 Orange Yellow FS 13538 gloss FS 33538 matte finish color also known Iden tification Yellow Chrome Yellow Continued page 148 Statement Ownership Management Circulation Required 39 USC 3885 lA Title Publication Model Aviation 18 Publication No 087930 2 Date Filing October 181984 3 Frequency lasue Monthly A No issues published annually 12 B Annual aubacription price $1800 4 Complete Mailing Addreaa Known Office Publica tion atreet city county atate zi code print ers 1810 Samuel Morse Dr Reaton VA 22090 S Complete mailing address headquarters gen eral business otficesofthepublishernot printer 1810 Samuel Morse Dr Reston VA 22090 6 Full names complete mailing address publisher editor managing editor thia item must blank Publisher Carl R Wheeley 1810 Samuel Morse Dr Reston VA 22090 Editor Carl R Wheeley 1810 Samuel Morse Dr Res ton VA 22090 Managing editor None 7 Owner Academy Model Aeronautics Inc 1810 Samuel Morse Dr Reston VA 22090 8 Known bondholders mortgagees other security holders owning holding 1 percent total amount bonds mortgages other securities None 9 For completion nonprofit organizations authorized mail special rates Section 42312 0MM purpose function nonprofit status organi zation exempt status Federal income tax purposes 1 Has changed during preceding 12 months 10 Extent Nature Circulation Actual AverageNo copies No copiesof single issueissue duringpublished precedingnearest 12 monthsfiling date A Total No Copies Net Press Run7592583200 BPaid and/or Requested Cir culation 1Sales through dealers carriers street ven dors counter sales36213825 2Mail Subscriptions6890276336 C Total Paid and/or Requested Circulation Sum 1081 10827252380161 DFree Distribution Mail Carrier Other Means Samples Complimentary Other Free Copies24762445 ETotal Distribution Sum C D7499982606 FCopies Distributed 1 Office use leff over un accounted spoiled after printing601575 2 Returns News Agents32819 G Total Sum E Fl 2 should equal net press run shown A7892583200 11 I certifythat statements made correct complete Carl R Wheeley Editor Publisher 146 Model Aviation RjAY TA 1% ____I VL PRODUCTS FIELD BOX its four compartments VL FIELD BOX assembled Ready Go accommodate everything need pre pare take-off fast charger charger cables tools test meters gel cells etc made heavy duty corrugated Handle reinforced 1/8 masonite Off-white background printed blue black space marked name address etc side convenientCharging Schedule opposite side ---- always $ g readyforyourreference Imagine q Field Box y go nd support equipmentP~e$%r handling Calif residents add 29 safes tax Send $1 $0 tsr complett illustrated product CstaIa PRO DUCTS 7871 ALABAMA AVENUE CANOGA PARK F 91304 CLEVELAND GIANTSI NEW FOR GIANTIALE BUFFS~j worlds Largest Gas Plans Assarfme RNATIONALLY FAMOUS C-D OLIALITS MASTER MODELS PLANS 5450$evroielIe 21 $4 7BConeci cal PBV2A 542 72 car 02121/4 L&S $46 104 can car PBY5A 556 62 ilonnard Race Ike 54$96 WrisitNenyRao 54R- 77 Boeing B-i70 Porn 535 52 WWrr121 Rd L 536 i03 Bee 6170 P01 555 77WWn121 Red L 54$- 6$ $o,s v46A 06 $32..* 64 Pnkknr D7 Pr$39 i0B Siker S3$ Anph $49 60 90-card Pece Raie $32i- 60 Baa 100 Sport$36 70 Bayi O,Be $231 90 Ban isa Sport$49 60 Saprrrarine S6B $24 90 StinAtoa Wing $56 89 Saparnrorine S6B $32- 60 MorOn 74 T4M1 $29 62 carr tioak P6E $42 75 HPg 0400 $onh $42 94 c,9ok P6E Ptr 554n 104 HPg 0400 Ban $26 62 Lockheed Vega$24 65 Mchjna clip9 74 iSoalinie 06 11 548 97 92 Manacoape Sport$2668 60 9-li Spr Baildog $42 65 Ry 107 Aerenco c3 SF $25 68_______________ 61 Soosia 028 06 $22 77 k 122 Doaglo 02806 $49 72 N AM oh Ratok $49 94 Pog car Racer $40 62 M Ma oade 626 $49 71 Marlin 810 Baink $29 $1 OH Macqa Rb $42 78 Tamer WW 9cc 535 10809 Macqa Ronrb 555 f 02 car Oohk Pi 1C2 $42 va S ea PT 7Kaydet $56 ...-rjlr 94 car Oohk Pi12 $54 99 S6 09ev cone Ran 524 71 62 HoaMrMaillgan53595 94 HoooMr Malligon $45 56 62 Eceing P26A PIr$36log 84 Boeing P26A Ptru4860 69 Waco c cabin$2668 64 Beech C17B Stag $38 596 onnRaceMLA $54 96 Beech C17E Sras 549- 1070 Scant P87 524 ook Ii Eleorro $30 72 T an-cl 6008 $24 82 Lank 11 Elenrra $40 107 Mar MR Ban $44 62 Sriran 0 W 5R7 $16 91 Lindker9 NO211 029 61 Srinon 0 W S97 524 08 PairhPT19 Tr$59 122 Orincor T w 5R7538vOWaoo Tap Win0 O29~-cr 59 Brital Pr P26 $20 75 Worn 6 Lyand 78 Bridal PIr P26$32190 Werl d Lyander549 Il8 Oritol PIr P26$45tS7PardTrntr4AT828 74 TL Pecoc Spec$45r76 Par4 Trnrr 4 AT$45 62 Skyrooker OP5Pi$20114 Ford Trnrr 4 AT$59* 56 Car Warhk P40$2484 Ben Joyoe XPJ 2$56.. 7$ Lank Lishrng P38 $2893 Loer ag c OAnph$69 26RepSeaBeeAtn$54SAOanJ2P Dank$29 74 RepSeaB Anpht29780 J2 P Dank$56... 106 Piper 23 Cab$3959 Ontha OiV Bonn522 98 Lack Hadan Bnk $38117 Oalha OIV San$29 62 Oran P6P Hellcar52868 900952 Taer Mnrh$3954 Nor Sold Thra DenierPri 01cO Peico iooCanea Oral On-cr 1200 Odrer, 6 73 Add 10% order h USA Can & Moo EIenher Pictorial catolag 52 00 lioclade Price Licrl Prine lir ancrian clone 5100 air tore9- add $100 CLEVELANDMODEL&SUPPLY Co 7B SETROiT AVE cLEMBLANS OHiO 44182 Poor Seroce 1L S0n 01030002990 3000,,4 Robson House Hobby Supplies 222 Clareview Road 0-3 Edmonton Alta Can T5A 3Y5 MC VISA No _________________________ ExpeaFoe Date _________________________________ Signature Name Street Cay State Please alow 3 weeks estra o cueces Invited join National Soaring Society OFFICIAL SOARING SPECIAL INTEREST GROUP YEARLY NATIONAL TOURNAMENTS NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT BI-MONTHLY NEWSLETTER NSS CONTRIBUTES SUBSTANTIAL AMOUNTS TO EACH F3B SOARING TEAM NSS IS RESPONSIBLE FOR THE ORGANIZATION AND OVERSEEING OF AMA NATS INCLUDING AWARDS BANGUET YEARLY DUES ARE 51200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS pL % 9 4z S 0 Informaton Contact JOHN R VOGEL 906 ORCHARD PARK DR GIBSONIA PA 15044 148 Model Aviation depending what reference source used blue used fuselages Stear mans other similar trainers also referred different names sometimes called ANA 501 Light Blue some times True Blue federal standard number ES 15102 paint glossy British Canadian trainers painted yellow also RAE RCAF color being called simply Yellow sample Hobbypoxy reference material matte contem porary aircraft can glossy well formulas ANA 614 Orange Yellow 20 parts H49 Cub Yellow four parts H47 Bright Yellow part H66 Dark Red part H1O White ANA 501 Light Bluefour parts H25 Sky Blue three parts H24 Dark Blue part H65 Bright Red part H67 Maroon RAF/RCAF Yellownine parts H49 Cub Yellow seven parts H47 Bright Yellow three parts H55 Cream two parts H66 Dark Red Eor matte finish mix 11 Hobby poxy HOS Elat Hardener Eor gloss fin ish use either H02 H06 Gloss Quick Spray Hardeners Hobbypoxy has revised updated its Hobbypoxy Painting Pointers Brochure 1985 four-page booklet describes products extensive line finishing materials gives complete structions use Expert methods priming finishing bare balsa fiberglass epoxy glass molded plastics discussed Information giv en painting trimming various types iron-on covering materials greatest interest modelers will highly-detailed very thorough sec tion spray painting techniques includ ing selection proper airbrush compressor equipment brochure available mail no cost Request copy Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Box 378 Rockaway NJ 07866-0378 Bob Dolly Wischer S-221 Lapham Peak Rd Delafleld WI 53018 RC ElectrlcslKopski Continued page 53 tory everyone Electric OT anyway Same reas ons some folks fly Peanut scale some CL Carrier some RC Helicopterits fun theres something else too getting more fun damental concern kind gaspowered flying Remember school yard mentioned above Such event schoolyard exception Erom what can determine schoolyards closed model flying bet lot would change clean quiet Elec tric power Get point Before getting main event month want recall attention lead photo column Sep tember issue mystery plane pictured open structure brought three writ ten responsesall correct naming model Lockheed Constellation No guessed builder Heinz Koerner Heinz gentleman runs Clin ic annual KRC Electric Ely Connie second first completed technical reasons larger mishap few weeks prior years Electric Ely repaired time event Look next year As promised last column month will describe results date severalmonth experiment involving power system makeup Electrics may recall visitor field sum mer Tom southern California told high rate-of-climb preference Electric gliders out turf compared slower though longer power ascent out way decided try way same time put further test long-held tenet its battery other things being equal determines average total flight time such plane chose now-frequent example Spectra Soar design boring because have lots historic data Some data graphed Part Seven MAs Electric Series March 1984 flight histogram presented showed very clearly average flight time about 13-14 minutes hundreds flights six-cell 12 Ah battery various 05-sized motors data flying generally evening weekend morning air no obvious lift present decided install Cobalt 15 suit able battery trying maintain same weight balance etc Erom bench data knew Cobalt 15 7 x 6 nylon nine cells should have static put power level about 140 wattsmuch before vastly needed just cruise plane worked out very well Both OS motor six-l 2 Ah-cell system Cobalt 15 nine-O8 Ah-cell system weigh about 18A oz although new battery about oz lighter felt certainly close enough make valid test argu ment total flight time should about same both power systems same time give taste significantly faster rate climb shorter total motor-run time Indeed power combination proved definitely much faster-climbing replaced useful power run time just definitely much shorter expected nine 08 Ah Sanyo cells assembled pack would fit exactly six pack 12 Ah cells beenincluding interfacing exist ing cooling-air exit holes cells spaced balsa sticks accomplish assembly held together clear silicone adhesive later proved inadequate adhesive and
Edition: Model Aviation - 1985/01
Page Numbers: 50, 51, 145, 146, 148
Radio Contml Scale Bob & Dolly Wischer FRANCE AND ENGLAND trip Paris Scale World Championships cluded experiences Scale models seen modelers met report meet couldnt possibly have touched events airplanes par ticularly follow-up included crossing Channel visit Scale contest Abingdon England LeBourget World Meet Peter McDermotts Sopwith Snipe sec ond highest static score good reason two-year project 7F 1 Snipe exquisitely detailed -scale reproduction WW fighter Canadian National Aeronautical Collec tion Ottawa models 1 A-lb dum Bentley rotary engine mounted large ball bearing race cylinders turned aluminum actually rotated exhaust stream Magnum 91 four-stroke engine hides view Valve pushrods spark plugs faithfully reproduced weighty mass continues spin after Magnum prop have stopped impressive prototypical Gyroscop ic action spinning mass seems have no effect flight An additional half-pound lead brings total noseweight over two lb extra weight 745-in-wingspan Snipe weighs 128 lb Other exceptional features rib stitch es made real thread stabilizer cidence adjustable cockpit original Peter made rigging wires 028 music wire covered flattened plastic tubing wire ends soldered tubing terminals right left threads length adjust ments can made twisting wire also copied full-scale practice wing loading 20 oz per sq ft Snipe flew well light wind condi tions Le Bourget Engine fuel prob lems limited power output kept its flight scores unreasonably low fin ished fourteenth place As often hap pens competition little obstacles keep great airplane Grumman F7F-1 Tigercat L latest Scale project David Parker Martock England pair Enys 35s power 9-lb fighter Construction -oz glass cloth over planked-baisa fuselage foam wing uses Rom-Air retracts Britains finest craftsmen Duncan Hutson built thIs fine Avro Anson R Power twin Irvine 30s Model weIghs 131 lb has hand-made re tracting gear tires gears 0160 shock struts operational Craft spans 84 finished K&B Suparpoxy over nylon 50 Model Aviation Paris operational dummy rotary engine Peter McDermotts Scpwlth Snipe i support ed ball bearing impelled exhaust stream Magnum 91 four-stroke hiding behind IL tiny data plate cowl gIves Bentley engine specificatIons model second-hIghest statIc score Scale World Champs England Group Captain James Peily-Fry Fivehead England flew prototype Vickers Wellealey model i A-scale African campaign WW ii Finish 90-in-span bomber Humbrol paint over nylon Polykote fuel-proofer An Enys 40 fourstroke files thIs 7-lb 10-oz ship easily Plane has Rom-Air retracts doing well met Peter McDermott again Abingdon Scale contest England week after conclusion Paris meet Abingdon partially-disused military air base central England near Oxford plenty space separate RC CL areas contest used FAT rules bonus system effect RC saw no trophy prize awards Weather contest contrast Paris cool blustery constant threat rain Peters airplane meeet Bowers Fly Baby wise choice existing weather conditions Winner contest Mick Reeves fabulous new Hawker Hurricane best flight made during gusty rainstorm everyone scoring judges searched shelter Soaking-wet score sheets must have difficult mark Micks high flight scores largely attributable Hurricanes ability fly speed attitude provides scale appearance Le Bourget Enya 90 four-stroke seemed over heat due mostly lack ventilating air completely-cowled engine ly air inlets around periphery spinner through simulated coolant radiator under wing Air out lets through dummy Merlin ex haust pipes Abingdon cooler weather secmed benefit Enya Continued ae 145 Steam powerl model Isnt scale its builder David Parker usually builds Scale However hes striving make opera tional steampowered model some time Plane files average live minutes threeminute enginerun consumes four ounces alcohol fuel four ounces water Ship actually RC-assist Free Flight model rudderoniy takes off weight 31/i ib Steam engine drives handcarved prop generates thrust 24 oz Closeup nose bolier R shows stainless steci firetube flash boiler constitutes maIn fuselage sectIon Comet ha Heat fire escapes through double row holes Lateral tube wing fastening Visible atop fuselage just behind wlngtube steam pressure manometer reads 60 psi EIGHTH ANNUAL SEE THE LATEST PRODUCTS AND VISIT WITH MAJOR MANUFACTURERS AND DISTRIBUTORS OF MODEL AIRCRAFT L ENGINES MODEL BOATS O CONTROL SYSTEMS *SWAP SHOP MODEL CARS LING ACCESSORIES *GIANT RAFFLE WIN TWO FIRST CLASS ROUND TRIP TICKETS GOOD FOR TRAVEL BETWEEN ANY TWO CITIES IN THE USA SERVED BY DELTA AIR LINES INCLUDING NASSAU BERMUDA AND SAN JUAN! STATIC DISPLAY COMPETITION IN MANY CATEGORIES January1985 51 JANUARY 12 & 13 1985 U IU VLH5LA IWI UHIS UUHUIA L L Y IN Vi LUI INTERNATIONAL MODELER SHOW OFFICE PO Box 10127 Costa Mesa CA 92627 Ph 714 5484700 645-88301 Perma-Grit TM Lifetime * Carbide Sanding Tools Tungsten Carbide grit hardest material next diamondp * Outlasts sandpaper 100s timesTungsten carbide grit brazed * Tools will load upsteel 9 long tool use * Grit cant tear looseon balsa hardwoods fiberglass * Makes fitting blending fairing pleasurebeaded foams epoxy fillers * Fairs LE TE foam undercuttingplexiglas * Rapid stock Removal better control * Saves time money end aggravation e USA * Replaces plane knite rasp fr sanding blocks Average Modelers Use F-tOOFlat Coarse/Fine$695 excellent tools thatF-lOt Flat Fine$695 modeler can useF- 102Flat Coarse$695 Don Lowe Professional EngineerR-200 3/4 Radius Coarse/Fine$695 Ask Dealer send check MO No CODs to 1-201 1/8 Tangent Coarse/Fine $695 1-202 3/4 Round Coarse/Fine$625 DIG Products_ 1203 d- Coarse/fine$495 209 Carrlands Dr Dayton 0*4 454291204 d- Coarse/Fine $495 o 94-1192 tage Paid Ohio residents add 6% tax Without judges wouldnt contest probably several other places theyd rather After first contest normal reac tion decide wasnt bad after especially everything went well big factor success proper preparation knowing what expect Both pilots control Good luck has long column rea lize exclusively about Aero batics owe sport fliers Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32S48 RO ScalelWischers Continued page 51 otherwise severely abused cant quite agree philoso phy fuel propellers engines expendable items models interest winning obtaining high static score submerged engine Nev ertheless Mick has proved us possible build fly totally-believ able WW II fighter A-scale can have scalelike appearance both air during static judging ulti mate scale accuracy Mick has made own aluminum wheels tires formed Devcon RTV rubber compound Second place Abingdon awarded Duncan Hutson A-scale Avro Anson Mk 1 model large 84-in wingspan definitely un derpowered pair effectivelysilenced Irvine 30 engines serious competitors have adopted concept building multi-engined aircraft large possible staying within 132 lb weight-limit Duncan just barely stayed in-bounds very innova tive fellow used Sanwa sail winch model boat hobby operate handmade retract mechanisms land ing gear working oleo struts wheels tires silicone rubber airplanes Abiflgdon Anson least affected wind permitting ac curate placement its dropped bombs Steam power England paid another visit friend Group Captain James Pelly-Fry inspect newest Scale airplane Vickers Wellesley has modeled after prototype flown East African campaign early days Italys involvement WW II accounts have read about experiences aircraft James successfully landed night Sudan desert await dawn before returning base After unexpected return request replacement cancelled Wellesley extremely large airplane single Bristol Pegasus XX 935-horsepower engine having span 75 feet James model /0th scale 90-in wingspan weighed TA lb wing loading 20 oz per sq ft engine Enya 40 four-stroke no lack thrust fly large airplane As prototype model employed geodetic construction fu selage stringers wing ribs basketweave pattern over external sur faces models framework quite complex possible build very light strong framework meth od Rom-Air retracts very wide tread great stability ground James regular flying companions days David Parker Brian Taylor disused air base near homes southwest England Davids newest Scale model Grumman Tigercat F7F-l pair Enya 35 engines Rom-Air retracts Like scratch-builder Scale model ers David has streak inventive geni us long-term projects has development steam-powered model airplane has now reached stage successful five-minuteduration flights three-minute engine run four ounces ethyl alcohol fuel equal amount water Comet IIA model weighs 35 lbs fuel water has 62-in wingspan 630 sq wing area water-tube boiler fabricated thin sheet stainless steel brazed joints one-cylinder steam engine nose develops 24 ounces thrust hand-carved prop Heat exhausted through open holes boiler January1985 145 30 PACIFIC ACE Complete kit $750 plus $150 S & H Also Rearwin Speedster Cessna 34Fairey Battle Fairchild Ranger & Lam bert Monocoupe 30 Price $1000 Fa SEAGLEN MODEL CO BOX 123 Plympton MA 02367 Power Soar New Heights LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 top exhaust steam emitted engine barely-discernible jet High prop pitch absorbs energy constant pressure operation alcohol flame light ed match through hatch boiler side Pressure builds slowly until prop begins turn Flow air prop carried boiler draft tube scoop bottom current air quickly converts sim mering heater flash boiler stant] changes water steam Pressure rises Very rapidly 60 psi read tiny manometer boiler top con tinues hold value throughout three-minute engine run After fuel completely consumed little water remains drained air intake size boiler bottom determines rate fuel burning no wasted energy flame coming out top exhaust openings Comet model essentially Free Flight rudder control RC keep within flying field boundaries boiler forms main portion fuse lage nose attached front tail rear individual wing panels plugged boiler sides tubes Al together astounding flying machine Model boxes As seen Le Bourget Scale models have steadily increased size also strong movement con vince FAI permit increase model weight would have subse quent effect model size upward direction Since World Champion ships conducted Europe increase size poses problem transportation US team very fortunate have assistance TWA sales repre sentative handling monster-sized model boxes Washington-Dulles Airport De Gaulle Airport Paris boxes accepted excess bag gage because team members supporters departed group ques tionable whether such large boxes would have taken air freight exorbi tant cost problem has its beginning team trials nothing said about transport large models Everyone vited fly whatever airplanes will fit FAL rules winners naturally reluc tant make changes large model will fit smaller space would greater resistance sug gestion new aircraft designed built years time easily transportable now appears competitors need asked advance meet maximum standard box size past dimensions absolute maximum 24 x 36 x 72 stressed effort made have dimensions considerably less box too big wasnt per mitted board military transport planes carried us modeler would faced having make quick decision alternate transport using commercial airlines have become lax stipulation size TWA represen tative dismayed looked side oversize overweight boxes see vast empty spaces inside Hobbypoxy colors recently-released formulas mixing cor rect amounts Hobbypoxy paint standard military colors yellow blue commonly found trainers WW II few examples Stearman AT-6 SNJ Harvard Chipmunk T-28 other US British Canadian trainers yellow used United States train er aircraft ANA 614 Orange Yellow FS 13538 gloss FS 33538 matte finish color also known Iden tification Yellow Chrome Yellow Continued page 148 Statement Ownership Management Circulation Required 39 USC 3885 lA Title Publication Model Aviation 18 Publication No 087930 2 Date Filing October 181984 3 Frequency lasue Monthly A No issues published annually 12 B Annual aubacription price $1800 4 Complete Mailing Addreaa Known Office Publica tion atreet city county atate zi code print ers 1810 Samuel Morse Dr Reaton VA 22090 S Complete mailing address headquarters gen eral business otficesofthepublishernot printer 1810 Samuel Morse Dr Reston VA 22090 6 Full names complete mailing address publisher editor managing editor thia item must blank Publisher Carl R Wheeley 1810 Samuel Morse Dr Reston VA 22090 Editor Carl R Wheeley 1810 Samuel Morse Dr Res ton VA 22090 Managing editor None 7 Owner Academy Model Aeronautics Inc 1810 Samuel Morse Dr Reston VA 22090 8 Known bondholders mortgagees other security holders owning holding 1 percent total amount bonds mortgages other securities None 9 For completion nonprofit organizations authorized mail special rates Section 42312 0MM purpose function nonprofit status organi zation exempt status Federal income tax purposes 1 Has changed during preceding 12 months 10 Extent Nature Circulation Actual AverageNo copies No copiesof single issueissue duringpublished precedingnearest 12 monthsfiling date A Total No Copies Net Press Run7592583200 BPaid and/or Requested Cir culation 1Sales through dealers carriers street ven dors counter sales36213825 2Mail Subscriptions6890276336 C Total Paid and/or Requested Circulation Sum 1081 10827252380161 DFree Distribution Mail Carrier Other Means Samples Complimentary Other Free Copies24762445 ETotal Distribution Sum C D7499982606 FCopies Distributed 1 Office use leff over un accounted spoiled after printing601575 2 Returns News Agents32819 G Total Sum E Fl 2 should equal net press run shown A7892583200 11 I certifythat statements made correct complete Carl R Wheeley Editor Publisher 146 Model Aviation RjAY TA 1% ____I VL PRODUCTS FIELD BOX its four compartments VL FIELD BOX assembled Ready Go accommodate everything need pre pare take-off fast charger charger cables tools test meters gel cells etc made heavy duty corrugated Handle reinforced 1/8 masonite Off-white background printed blue black space marked name address etc side convenientCharging Schedule opposite side ---- always $ g readyforyourreference Imagine q Field Box y go nd support equipmentP~e$%r handling Calif residents add 29 safes tax Send $1 $0 tsr complett illustrated product CstaIa PRO DUCTS 7871 ALABAMA AVENUE CANOGA PARK F 91304 CLEVELAND GIANTSI NEW FOR GIANTIALE BUFFS~j worlds Largest Gas Plans Assarfme RNATIONALLY FAMOUS C-D OLIALITS MASTER MODELS PLANS 5450$evroielIe 21 $4 7BConeci cal PBV2A 542 72 car 02121/4 L&S $46 104 can car PBY5A 556 62 ilonnard Race Ike 54$96 WrisitNenyRao 54R- 77 Boeing B-i70 Porn 535 52 WWrr121 Rd L 536 i03 Bee 6170 P01 555 77WWn121 Red L 54$- 6$ $o,s v46A 06 $32..* 64 Pnkknr D7 Pr$39 i0B Siker S3$ Anph $49 60 90-card Pece Raie $32i- 60 Baa 100 Sport$36 70 Bayi O,Be $231 90 Ban isa Sport$49 60 Saprrrarine S6B $24 90 StinAtoa Wing $56 89 Saparnrorine S6B $32- 60 MorOn 74 T4M1 $29 62 carr tioak P6E $42 75 HPg 0400 $onh $42 94 c,9ok P6E Ptr 554n 104 HPg 0400 Ban $26 62 Lockheed Vega$24 65 Mchjna clip9 74 iSoalinie 06 11 548 97 92 Manacoape Sport$2668 60 9-li Spr Baildog $42 65 Ry 107 Aerenco c3 SF $25 68_______________ 61 Soosia 028 06 $22 77 k 122 Doaglo 02806 $49 72 N AM oh Ratok $49 94 Pog car Racer $40 62 M Ma oade 626 $49 71 Marlin 810 Baink $29 $1 OH Macqa Rb $42 78 Tamer WW 9cc 535 10809 Macqa Ronrb 555 f 02 car Oohk Pi 1C2 $42 va S ea PT 7Kaydet $56 ...-rjlr 94 car Oohk Pi12 $54 99 S6 09ev cone Ran 524 71 62 HoaMrMaillgan53595 94 HoooMr Malligon $45 56 62 Eceing P26A PIr$36log 84 Boeing P26A Ptru4860 69 Waco c cabin$2668 64 Beech C17B Stag $38 596 onnRaceMLA $54 96 Beech C17E Sras 549- 1070 Scant P87 524 ook Ii Eleorro $30 72 T an-cl 6008 $24 82 Lank 11 Elenrra $40 107 Mar MR Ban $44 62 Sriran 0 W 5R7 $16 91 Lindker9 NO211 029 61 Srinon 0 W S97 524 08 PairhPT19 Tr$59 122 Orincor T w 5R7538vOWaoo Tap Win0 O29~-cr 59 Brital Pr P26 $20 75 Worn 6 Lyand 78 Bridal PIr P26$32190 Werl d Lyander549 Il8 Oritol PIr P26$45tS7PardTrntr4AT828 74 TL Pecoc Spec$45r76 Par4 Trnrr 4 AT$45 62 Skyrooker OP5Pi$20114 Ford Trnrr 4 AT$59* 56 Car Warhk P40$2484 Ben Joyoe XPJ 2$56.. 7$ Lank Lishrng P38 $2893 Loer ag c OAnph$69 26RepSeaBeeAtn$54SAOanJ2P Dank$29 74 RepSeaB Anpht29780 J2 P Dank$56... 106 Piper 23 Cab$3959 Ontha OiV Bonn522 98 Lack Hadan Bnk $38117 Oalha OIV San$29 62 Oran P6P Hellcar52868 900952 Taer Mnrh$3954 Nor Sold Thra DenierPri 01cO Peico iooCanea Oral On-cr 1200 Odrer, 6 73 Add 10% order h USA Can & Moo EIenher Pictorial catolag 52 00 lioclade Price Licrl Prine lir ancrian clone 5100 air tore9- add $100 CLEVELANDMODEL&SUPPLY Co 7B SETROiT AVE cLEMBLANS OHiO 44182 Poor Seroce 1L S0n 01030002990 3000,,4 Robson House Hobby Supplies 222 Clareview Road 0-3 Edmonton Alta Can T5A 3Y5 MC VISA No _________________________ ExpeaFoe Date _________________________________ Signature Name Street Cay State Please alow 3 weeks estra o cueces Invited join National Soaring Society OFFICIAL SOARING SPECIAL INTEREST GROUP YEARLY NATIONAL TOURNAMENTS NATION-WIDE EXCELLENCE AWARDS PROGRAM EXCELLENT BI-MONTHLY NEWSLETTER NSS CONTRIBUTES SUBSTANTIAL AMOUNTS TO EACH F3B SOARING TEAM NSS IS RESPONSIBLE FOR THE ORGANIZATION AND OVERSEEING OF AMA NATS INCLUDING AWARDS BANGUET YEARLY DUES ARE 51200 SPECIAL FAMILY RATES NSS OFFICERS ARE FROM ALL 11 DISTRICTS pL % 9 4z S 0 Informaton Contact JOHN R VOGEL 906 ORCHARD PARK DR GIBSONIA PA 15044 148 Model Aviation depending what reference source used blue used fuselages Stear mans other similar trainers also referred different names sometimes called ANA 501 Light Blue some times True Blue federal standard number ES 15102 paint glossy British Canadian trainers painted yellow also RAE RCAF color being called simply Yellow sample Hobbypoxy reference material matte contem porary aircraft can glossy well formulas ANA 614 Orange Yellow 20 parts H49 Cub Yellow four parts H47 Bright Yellow part H66 Dark Red part H1O White ANA 501 Light Bluefour parts H25 Sky Blue three parts H24 Dark Blue part H65 Bright Red part H67 Maroon RAF/RCAF Yellownine parts H49 Cub Yellow seven parts H47 Bright Yellow three parts H55 Cream two parts H66 Dark Red Eor matte finish mix 11 Hobby poxy HOS Elat Hardener Eor gloss fin ish use either H02 H06 Gloss Quick Spray Hardeners Hobbypoxy has revised updated its Hobbypoxy Painting Pointers Brochure 1985 four-page booklet describes products extensive line finishing materials gives complete structions use Expert methods priming finishing bare balsa fiberglass epoxy glass molded plastics discussed Information giv en painting trimming various types iron-on covering materials greatest interest modelers will highly-detailed very thorough sec tion spray painting techniques includ ing selection proper airbrush compressor equipment brochure available mail no cost Request copy Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Box 378 Rockaway NJ 07866-0378 Bob Dolly Wischer S-221 Lapham Peak Rd Delafleld WI 53018 RC ElectrlcslKopski Continued page 53 tory everyone Electric OT anyway Same reas ons some folks fly Peanut scale some CL Carrier some RC Helicopterits fun theres something else too getting more fun damental concern kind gaspowered flying Remember school yard mentioned above Such event schoolyard exception Erom what can determine schoolyards closed model flying bet lot would change clean quiet Elec tric power Get point Before getting main event month want recall attention lead photo column Sep tember issue mystery plane pictured open structure brought three writ ten responsesall correct naming model Lockheed Constellation No guessed builder Heinz Koerner Heinz gentleman runs Clin ic annual KRC Electric Ely Connie second first completed technical reasons larger mishap few weeks prior years Electric Ely repaired time event Look next year As promised last column month will describe results date severalmonth experiment involving power system makeup Electrics may recall visitor field sum mer Tom southern California told high rate-of-climb preference Electric gliders out turf compared slower though longer power ascent out way decided try way same time put further test long-held tenet its battery other things being equal determines average total flight time such plane chose now-frequent example Spectra Soar design boring because have lots historic data Some data graphed Part Seven MAs Electric Series March 1984 flight histogram presented showed very clearly average flight time about 13-14 minutes hundreds flights six-cell 12 Ah battery various 05-sized motors data flying generally evening weekend morning air no obvious lift present decided install Cobalt 15 suit able battery trying maintain same weight balance etc Erom bench data knew Cobalt 15 7 x 6 nylon nine cells should have static put power level about 140 wattsmuch before vastly needed just cruise plane worked out very well Both OS motor six-l 2 Ah-cell system Cobalt 15 nine-O8 Ah-cell system weigh about 18A oz although new battery about oz lighter felt certainly close enough make valid test argu ment total flight time should about same both power systems same time give taste significantly faster rate climb shorter total motor-run time Indeed power combination proved definitely much faster-climbing replaced useful power run time just definitely much shorter expected nine 08 Ah Sanyo cells assembled pack would fit exactly six pack 12 Ah cells beenincluding interfacing exist ing cooling-air exit holes cells spaced balsa sticks accomplish assembly held together clear silicone adhesive later proved inadequate adhesive and