Letters to the Editor

lowest prices RC hobby II I I U I U I I U I I U 1*4 ND NEW Volume 9 Catalog best DESCRIPTIONS best PHOTOGRAPHS RC Airplanes boats radios engines .I best RC BEGINNERS catalog weve made very easy order EXACTLY what need started RC DISCOUNT COUPON rder us L ORGANIZED RC icatalogitsveryeasytofindwhatyoui want QUICKLY . Big FULL COLOR section 96 page catalog I II II 0-it INVI IQ Eo IU otEI -g iEEeI 0 D2u o0 I-~co ~I -E1 Ea0 I~tz Zc0WI II IU * INTERNATIONAL Rt 3 Franklin Pike Circle Brentwaod TN 37027 373-1444 Xetters t d d letters will carefully considered general interest used Send Model Aviation 815 15th St NW Washington DC 20005 Darn Errors Ive noticed errors omissions seem creeping plans articles otherwise fine magazine has grown size 1 November80 issue p8 fuselage length specified Minute Man Judging roughly photo should about seven times wing chord 3-in 21 mbut should have specified drawing 2 p 7 foam rubber model photo caption says wingspan 54-in drawing scale would say 96-in However plan words also say wheel size Yg-in diameter what drawing scale would give drawing scale increased give correct wingspan wheel diamter would scale Ys-in pretty bad errors think should definitely print corrections next possible issue PS outdoor duration Srulls rubberpower foamie must thermal air ifthe indoor duration 30 sec should state W F McCombs Dallas TX PS item Don Srull says no-4ft still-air duration 30-sec range 1 mm fairly common outdoor buoyant air Wants Joy Jenny Plans would appreciate very much could insert column request set building instructions 6-ft Joy Jenny kit realize no longer business twill gladly pay reasonable price set someone has set would copy kit might have Richard Vancoe 114 7th St Honesdale PA 18431 Tele day 717 253-1150 night 717 253-1345 Cake Cutting photo taken 23rd anniversary Dallas RC Club AMA Charter No 609 cake cut first president club Mr Gorden Gabbert consumed other 100 members thought might recognize fellow lower right slightly older club LF Randolph Dallas TX try very hard have errors complete elimination has eluded us also true fewer pages Minute Man fuselage length should 18 Perhaps Mr McCombs failed notice Indeed recognize guy right fuselage made # sq 18 Re Hes past AMA President Johnny Clemens Srullfoamie meant knock out Others left Lawrence Eads DRCC scale ruler before printing called secretary Gorden Gabbert LF Randolph attention incorrect DRCC president Eddie Williams DRCC detail got away us now see secretary Gabbert way national thing wrong scale ruler AMA secretary-treasurer years ago values should halved 1 should ght after two-term stint office should Also wheel editor-publisher terms just year diameter should have indicated 7/16 days Continued page 125 4 Model Aviation 4PPW PER Pm. ESCO 50 CEVAC UP TECH EREFS 250 L HOFFELT 1IP fUAIN4IIFUuT X 99774eSAN DIEGOCAUFb U 9210s TELEPHONE 754-453-1984 Piasecki/HRP-1 Flying Banana/i 11813 Piasecki/HRP-2 Flying Banana/i 11829 Piaaecki/UH-25C HUP-3 Retriever/i 47600 Sikoraky/CH-i 9E H RS-3 Chickaaew/1 42432 Sikoraky/HO3S-1 /124352 Sikorsky/UH-340 HUS-1 Seahorae/1 50227 Sikorsky/UH-34D HUS-1 Seahorse/i 54895 Sikoraky/VS-44 Flying Boat/Unknown Vought/OS2U-3 Kingfisher/Unknown Vultee/SNV-1 Valiant/Unknown Safety Preston Continued page 69 Being engrossed what doing sat torch down bench inadvertantly aimed toward MonoKote-covered vertical stabilizer RPV tail caught fire burned area quickly spread diameter two three inches reaction blow flame out quickly before things got out hand flame went out quickly ring molten plastic around hole flew back face plastic gave its heat skin droplet solidified stuck painful experience Luckily no plastic got eyes Suggestion Keep small fire extinguishers readily available no blow Out buming plastic time read column flying season northerly parts US will over Now have time hands some sit down drop us line John Preston 7012 Eltira Court Falls Church VA 22042 SAFE FLYING IS NO ACCIDENT Letters Editor Continued page 4 Powered FF Folders may realize Stan Stoys article Powered Folders Shadow Things Come MA June 1980 has engendered least four letters her three too long throw away Folders dont know what frustration until dig particular can worms last several years have designing refining building smashing rehashing endless cycle Im still confused bewil dered. hopefully now higher leveL best advice anyone contemplating folders Grab cool drink sit down wait urge pass rrhosis liver will less painful long run Im afraid Stans article makes appear too simple should get few laughs experience just dont think translating Stans HLG approach Power version will worktoo dif ferences Q trigger relying does air speed would become booby-trap ship going off-pattern slowing down wings wouldnt open until hit ground End airplane style wing hinge used HLG suitable heavier faster Power ships enough muscle overcome adverse air pressure enough mechanical ad vantage handle inertial shock opening keep wings ripping off Actually impossible get enough power hinges alone Auxiliary boosters needed fuselage get wing N I--------I Ps Balsa Fuzz Freow/out Adjustments Sma $10 00 Large shown $20 00 P ease add $1 00 postage P Kits ature Replicas EE BEE shown $600 please adc $100 postage Catalog 75 See Dealer Order VGENE DUBOIS P0 BoxAcushnet MA 02743 .DEALER INQUIRIES INVITED moving past hinge dead spot triplefolding feature has lot going isnt much room squeeze third similar section Power foils thicker best can Whitcomb winglet Some vital things about wing design con struction must pressed fit between January 1981 125 AOUOBOOM AMA $ 2900 MONOOOEi FRI 2800 IOUOOOM FAI.e 2400 NO NONSENSE BALSA STRIPPERS ZONA SAWS famous line hobby saws Razor #200 $190 Sabre #400 $165 #1$345 Replacement blades available dealer F A I Model Supply PO Box 3957 Torrence CA 90510 USA Bill Gieskieng first kids tne block have FAI folder witness 77 photos top pylon back position gliding lower pic shows forward position necessary rearward center-of-gravity Fiberglas cloth resin form durable fuel proof products duplicate original size detail Sturdy yet flexible constructionwith reinforced stress points resists cracking has little affect models cg products easy paint require assembly SODJEMCO 550PTis600 011041550Fw no 09650 0005500803 Zpa800 3 GO000616 N,tfl 611101 0 Cma 150Boopa o a91200 Liugny 500 800FaF 011011300 566011800Fau Opogi1000 S,an U,,1000 8p.0 Ca1000WIIEELPANTS 8l. PP0 IpO 7 k p,700 10 o,g 8.000 STAFFORD 824 4..120010 0/3 Op log,1000 TOP FOOTEQUARTER SCALE 039 *ioab600aa Co1000 000 wa.o90051111 V,aaboo 00001000EII 8jp0oC1200 FaU 0010,1000AgIppo COooN1600 FSF 801011000 MoO9001000 PSO Molaa2000 PICAlap 45 EIC Cl Cpol00No, P09 000 090000 Woo E31000UNIVERSAL RADIALCOWLS C11 182120056 011111600 JO 1161102005 U1200 028 8 00, 1500or a112000 Send Check Money Order No COD accepted New York residents L add 7% sales tax Please add $150 shipping US $200 outside US enough longitudinal rigidity panels make curvature actually apply needed pressure Trajectory stability folder climb mode no longer conventional configuration something akin tandem-wing design aerodynamically balanced centerof-gravity CG must moved far back typical folder should have its CG near behind wings trailing edge climb mode During glide has forward dictated tail volume coefficient opinion Powered Folder variable CG will fly consistent power pattern will give some horrifying lessons science ballistics last word Would like say much respect Stan Stoy work Wrote him back set Indoor recrod have much good correspondence Didnt mean slight him questioned Q triggers function Powered Folder Perfect Glider CG shift needed desirable Glider Neither low-powered sport-type ship cant climb very steeply case Stan understood immediately concern about changing CG expressed back better clearer terms could think no small feat since rye seen some well known FFers aero other engineering degrees stum bled over because evidently confuse stability factors desirable successful vertical climb instability making plane imitate stability vertical mode Bill Gieskieng 11305 West Texas Ave Denver CO 80226 deep stuff no doubt about Stan Stoys article really think piece sought stir up gray matter direction better performance Free Flight Power rarq Gieskiengs bell no doubt because Bill has experience FF Power Folders anyone else know included full address because Bill apparently interested corresponding anyone experiences thoughts Power Folders Suggestions Industry suggestion kit manufacturers d like see make line 60-in span Scale kits styrofoam fuselage wings such popular planes Corsair P-40 Stearman Biplane Grumman Goose etc guys dont have time patience build intricate Scale ship would gobble up kits could just painted Mylar-covered sheeted balsa Also suggestion advertisers youd vary photos wording ads youd attract response rather same ads month after month enjoy magazine very much particularly plans photos Old-Timers Re Scale ships 1910 through 1945 Charles P Ricci Thompsonville NY wonder out like Mr Ricci certainly members model industry would like know After businessmen what people want will buy what worthwhile produce Its tough know whether letter like isolated case whether representative modelers Old-Timers Remembered gratifying last see Joe Ott get bit credit deserves October Just Fun has long member Model Aviation Hall Fame puzxle indeed man responsible Car no less five separate lines kits Duncan Ace Whitman JL Wright Bild-A-Set DA Pachter finally Joe Ott Co During early Thirties Joe did plans some wellknown companies Scientific dont think Joe knows different plans has done As kits always tried make things easier builderlike Ott-O-Former Ott-O-Tube plans Ace Whitman models among best first use plan back perspective drawing showed framework model assembled form thus making things much easier boy decipher Ace Whitman kits attractive box illustrated painting retouched photo model built plans real blue prints Joe Ott Fred Megow Bill Bishop founder original Comet Co should Hall Fame companies men founded worked biggest works 126 Model Aviation FIBERGLASS COWLS ONE PIECE -REASONABLE PRICES -MANY MODELS respective trailing leading edges folded wing Just cas ual static fit enough speed great suction gener ated attempts pull tOe wings apart wings must pre-stressed building panels bow arc must because gas model got still gets lions share publicity men large ignored Hall Fame top-heavy past presidents AMA rest have gas models would remind concerned gas models very small portion model aviation activity Thirties early Forties manufacturing companies able survive sales lowly cheap kits know 10-cent through dollar jobs example Jim Walkers famous Fireball model actually lost money expensive manufacture using much balsa complicated process turning hollowing fuselage Walker made kit would have almost instantly bankrupt Only sales hundreds thousands little ready-to-fly gliders rubber models enabled him what did Comets Sailplane Zipper very profitable prestige kits Comet people bit sensitive criticism little kits no reason great kits kid built along Ace Whitman Megow People constantly trying compare cheap kits line put out Cleveland building Cleveland stuff older boys bought Comet other 10centers Comet did fabulous Gulfhawk true-to-scale other kit models time work went kit reflected price Consequently very successful although won contests other Scale model time Fred Megow told retrospect felt would have better off have stuck top-of-their-line Rubber Scale Stinson ignored gas models profitable What am taking long say gas model kit sold must have several thousand little Rubber Scale kits bought built attempted heard Charles Grant Henry Struck others because did read model magazines late Thirties money spent kits Older boys bought magazines built plans therein other use 25 ly Megow Comet Ace Whitman kit remaining isg could get 5 tube glue coke candy bar What would need complete happiness So lets look back see what really made model industry grow proportions did 1934 first 10-cent kit arrived 1942 war-time restrictions nearly killed model companies Yes dear hearts what made modeling big lowly cheap kit Walter E Grigg Orlando FL advised Mr Grigg anyone considered Model Aviation Hall Fame nomination form needed filed sponsorand sent him form purpose Suggested reading subject July 1980 AMA News section de scribes program 1979 inductees Power Glider Returned public thanks young Mr Bryan Hoch heiser finding RC Glider having good common sense contact AMA Letters November 1980 Least Put Numbers ship belonged friend now deceased need extensive repairs Friday night began ambitiously work SCALE WH RADIO CONTROL ROL-UNE EELS FREE-FLIGHT 000 VINTAGESMOOTHGOLDEN AGENEW sIzes2/2CONTOURsizes21hBALLOON 3/e"24 31/8 13%1314 z4/2 1144/a1143%1144/e31455/4 1/z51/z4/z1/25 1/e65/8214514P46 SCALE PILOTS NDERS ENGINE KITS MACHINE GUN KITS PLASTIC DISPLAY MODELS fLL4I5SEND 5Oq FOR COMPLETE ILLUSTRATED CATALOG DEPT MA PAWNEE ST SAN MARCOS CA 9 repairs completed lo behold light outside Dawn broken Without taking additional time aflix AMA numbers name address Out field test fly rest history flew too high too far too well proper charging tuning Id certainly have gotten back much sooner license number and/or name address attached Incidentally Im seeing Bryan will active flier Thanks again him printing letter Danny Sheelds Randlestown MD glad have helped Danny another letterfrom reader upset someone gall suggest would barter return model found smaller shared some feelings tempered found out Bryan Hochheiser tender age 12 undoubtedly model found instilled great desire him become involved air plane modeling third letter unsigned objected suggestion putting AMA numbers models fpossible also thefull name address owner letter IN STOCK FOR IMMEDIATE SHIPMENT QUADRAS $8995 QUADRA REPAIR $1000 plus parts KIO RITZ engine 244 Cu $18995 Jim Messers ERCOUPE KIT $19995* Jim Messers TOMAHAWK KIT $22495* Concepts BIG FLEET KIT $17995* *includeu FREE Du-Bro wheels h-SCALE PLANS QUADRA ERCOUPETOMAHAWKSKVBOLT $20 ea SUPER STEARMAN Godfrey $2495 BALSA & SPRUCE sIzes 45% OFF COCKPIT KIT Ercoupe -$1500 also Stearman Fleet F4U Ziroli ME-log Ptatt J-3 Cub Cltabria Nosen $1800 ea P&W RADIAL ENGINES Fleet $30O0 FIBERGLASS COWL Fleet $2000 24-Hour Service. $2SO postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View DrAllegany NY 14706 writer felt better risk loss model jf several hundred dollars involved rather chance possibility lawsuit sue-happy time live guess old-fashioned think person re sponsibility something shouldnt duck Just think black eye would give modeling remember thatAMA membership pro vides insurance protects against pos sible liability flying according AMA Safety Code still advise minimum always put AMA numbers ships model type allows also recommend includ ingyourfull name address phone number January 1981 127 PRECISION BALANCE Herss equipment need give props very best balance--balance directiass Carefully crafted tap grade materials BUBBLE BALANCER accomodates 3/161/4 9/32 prop holes Other sizes available special order Dealers invIted $1495 Add 11511 tar poslage handling ki Mina HOWARD B HUEBI ItPT sos add 4% sales tan No CODs BOO 193 Route 4 Maskato Mn 561 Flying Near Airports Careful Free Flight Audio Control Flying near airports situation might involve possibility models being vicinity ot full-scale aircraft operations moot avoidedor conducted eliminate dangerous situations Models should tlown pronimity tull-scale aircraft operations unless flyer has someone else him sole purpose watching full-scale aircratt supervising flying prevent accident possibilities PROTECT YOUR RIGHT TO FLY