S Cvnwsflrsfl Emergency landings thoughts Giant modelsinsurance operations Sailplane winch safety precautions Electric props bite too John Preston BY THE TIME get around read ing column Summer 83 will about over However Im hastening finish get mail before leaving long Fourth July weekend beach know hot humid summers Washington DC area can will appreciate much Im looking forward chance get away used time such weather didnt bother Id willitigly stand field 900F higher temperatures sweat buckets over latest RC creation Somehow doesnt hold much fascination anymoremust getting old Anyway months offerings first comes Lee Tay lor originally written local clubs newsletter Lee will well aware founder IMAA point making following article applies pilots RC modelsnot just Giant Scalers Overesting exciting lifting Macho Leeimage yourself sure hard airPlanes pocketbooks Emergency Procedure Lee Taylor know guys model flying kind weird hobby guess much like hobby have old-timers actual experts self-appointed ex perts beginners Probably strongest things about hobby though virtually subject can get several different opinions about handle specific situation Personally have overriding concern anything Im chicken will just about anything can done model like approach very care fully easily stages impor tant whenever sense anything might wrong want model ground like now No hesitation no Humm wonder what was' No 'Lets check out little further' L-A-N-D NOW have very simple philosophy about kind situation whole lot safer check out potential problem ground try find out what problem air Delaying landing experiencing problems may interWhat has brought little tirade instance happened couple weekends ago flying favorite little Spitfire having ball usual Fullbore 450-dive strafing passes low inverted passes nice smooth big scalelike loops rolls etc noticed retrim nose-up slightly Humm bird never changed trim before Oh well no big deal minute later again little extra nose-up trim needed Wonder what causing think myself Fuel burn No havent up long Oil tail exhaust Pushrods stretching heat Maybe servo drifting Models still flying fine no prob lems Nothing really worry ab HEY IDIOT RULE ONE Power yanked off immediate landing no problems couple guys walked over asked hurried landingI never fly short time Dont really khow guys just started picking up little downelevator-trim drift make long juicy story slightly shorter didnt take long find out having trim drift ele vator hinge left completely installed Continued page 14 12 Model Aviation Ij -I 2 Hm-rv-n' THAT COIALV MEANTOI4BLE-I Ir ETTER 3lNer E iN V An accident just about happen Dale Black set launch electric-powered F3E model gust wind caught look wing skewed fuselage Dale f lies Sailpianes lotmust have forgotten stant prop nose reached up steady plane left hand CHOMP-CHOMP Fly LEADERS ! DU-BRO WORLDS LEADER/~ MODEL PRODUCTS. -L-AIRE II No 235 Ig5 THE FINAL FILTER ultimate in-line filter twice much fuel filtering capacity No182$175 TANK FILTER Combination weighl tiller designed tit clunk Md gm No 6S 5 KWIK-GLO 010 Plug Connector piece brass barrel snaps onto plug postve start 24 2 w th batt lugslB U yo Na 147S225 Backpressure noise level can varied adjusting muffling spring out fits engine 09 80 Spring Steel AXLE SHAFTS No246 1/txl/8dia No 247 11/Ax5/32dla 8 2x5/32dla No 249 2 x 3/16 dla Pkg 2 $200 KWIK-FILL FUEL PUMPS iiL COMPLETE FUELING SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTERSMOOTH INFLATABLES TAN) OPiRATiDA PUMP) IT AND 0. VGAGALLON QUART Qfl PINTNaDiameter Per pair FITS ON VOLUME SIZE CANS I 40CR 4' $875 PLOP INo 191 010 Fuel45CR4/z$1095 ShillSFeatures two piece bolt to50CR5$1315 No 250 Gas/dieselgether hubs hub caps Re55CR5Iz$1535 Si 195markably realistic looking60CR6$1755 ocket Bolt orR1IA$300 Head NoDiaPer pair BALL WRENCH SET T200TarR2$325 225TRorS2Io$350 Fts 440 632 head SMOOTH SLICKS TREAD 250 TRarS 2/U $375 Ibolts Leads cap aluminum finish wheel hubs 275 T R S 2IA $400 Iscrew bead trom angleThese low bounce shock absorbing300 T R $3$425 INo 132 bladeswheels feature nylon metalic325 Tar R 31/A' $450 $525finish Pairs matched balance350 Tar R3Vo $475 BRASS PLATED DURA-COLLARSCat Na 137 NICKEL PLATED SOLDER LINKSEnough stock threads will not138 strip can re-worked br many139 other uses Sets include Allen Wrench140 141 3/16 [v32][b-2-10-1-10]]Ava table sets 4$80 per set Nickel plated links will corrode make attractive easy solderHeavy duty connector tor servo control hornVflCat No 243 7/32 Cat Na 112 2 link guards S59244 $100 2 per set k4j4I No Size W 8-32 NYLON FLAT & SPLIT WASHERS 309 2-56 x 10 SOCKET HEAD 310 2-56 x h 8 INSERT LOCKNoSize 3112-56 x tA6321No2 FLAT CAP SCREWSNUTS322Na2 SPLIT 3124-40 x 1101323No4 FLAT 81-i 313A-40 x 1/15~324No 4 SPLIT 315 632x10325No6 FLAT P 3156-32X 1I8326No6 SPLIT 3176-32x 1Is61No 3292OPerPkg327Na8 FLAT P 3188-32x 18lOPer Package 328NO8 SPLIT 1 1/N6 $100 per packagePh 41$100 IIhIIIIiIi II C S 14 Model Aviation pulled completely Out next lost its hinge pin third loose far outboard hinge still intact Thirty seconds longer probably wouldnt have plane Cause prob ably picked up little elevator flutter terminal full-power dives Didnt see though just noticed little trim change Second story Jack Strickland up demonstrating new Contempo Cap 21 us letting us fly flying never landed next Roger Grotheer done sever-1 times noticed little sloppines developing controls threw th transmitter Roger screamed Land NOW batterys going dead Roger yanked off power spun around lost control three ft high flare got back just time straighten out bouncedown got down safely plane rolled stop close by time walked over control would move Third story Giant Scale Fly-in Nosen Cessna 310 being flown its owner noted fliers engine failed No problem guys can handle 'Ill fly baby hang buddy plane staggered around field three tines low altitude plenty room land virtually direction Hero Pilot wasnt going anything fly bird land feet cheers crowd Instead poor plane finally gave up snap rolled disintegrated pile splinters Fourth story focal field test pilot flying new plane beginner Scale builder plane Cub Midway through flight wing strut came loose seen dangling Jim dont know put wing struts shouts intrepid test pilot roblem though just little extra dihedral wing tubes holding fine shouts little laugh Two minutes later wing folded level flight fifth final story concerns Jim Fol lines magnificent Giant Scale PT-19 self flying Seven minutes flight attempted loop couldnt get enough up elevator pull over 'Battery' screamed myself Yank off power try get down instantly Too high too fast safe downwind landing Up half power try make pattern onto upwind normal landing Halfway down downwind leg lost motor control en gine half power power-on landingget down' Roll onto base diving runway roll onto final speed pretty high doesnt want come out turn onto final Regain momentary aileron long enough get level might make it' Halfway down glide path half power battery died completely plane arced over hit almost vertically needed another fifteen seconds point guys is Very seldom will Continued page 16 MINIATURE TOO LS Fresh brand name merchandise shipped directly doorATSA VINGS UP TO 40% SPECIAL LETS GET ACQUAINTED OFFER use miniature tools youll find outstanding values like ourMICROFLAME BRAZING IHhI\ new MICROMARK catalog Over 400~LDERINGKIT tools accessories hard toItem #17101 AV UJ find Save time save money shop one-RegularPrice52995 stop M ICROMARKMICROMARK SALE PRICE 51995 Mail NORISK coupon TODAYplus $200 insured delivery TOTAL 5 DREMEL DELUXE VARIABLE ________-SPEED MOTOTOOL KIT -With 40 accessories Item #38271AV Regular Price 9495 MICROMARK SALE PRICE 55995 plus 5400 insured delivery TOTAL 5 JEWELER S HAND VISE CARBON STEELiiIIii1 Made p0 shed steeItem #21102 AV DRILL BIT SET11111k iLF1ReularPrce $1195 iwSALE PRICE 5695 20 micro-sized drill bitsJLT~plus 70 nsured del very TOTAL57 55 Item #26110AvI Regular Price 51995I plus 5150 insured delivery TOTAL 5 MICRO4IARK SALE PRICE 51495 SAVE TIME ORDER TOLL-FREE 1-800-225-1066 credit card 24 hours 7 days weekl NJ call 201-464-6764 mm m ORDER COUPONm MICRDUARK 5112 AV e 24 East Main Street Clinton NJ 08809U please sand items indicated below WyItem #Price EcTotalTotal enclosed 5 check money order payable MICRO4ARK sorry no coosI charge er card []viseI iiI I5iunatureU HNAMEI Iabsolutely tree big new MICROaIAISK TOOL CATALOGI wish order Im Ordenog now yoar TOOL CATALOGADDRESS Itsr 51 postpaid NJresidents add appropriate sales tanCITYSTATEZIP U NORISACIJSTOMER6UARANTEE Yos nuns 100% delighted retom order within 14 days toralull retand purchase Deco 1mm mm mm mmm mmmm m o MIcRO-MARK 1983 mmmmmmm mmmm mm1 plane fail catastrophically least some warning first little bobble glitch failure notice WARN ING pay attention warning did battery Stricklands airplane time slight trim change Spitfire second time LAND IMMEDIATELY check out prob lem might have plane fly next weekend try macho out ig nore delay just little bit tightening noose around own neck first little bobble glitch failure click hammer gun being pulled back DUCK arent too people fast enough duck hear click trigger being pulled times wait second click DEAD DUCKS letter accompanied article Lee included some comments weight limit Giant Scale models Over Lee again As founder IMAA owner pilot three planes over 55-lb AMA weight limit can state very strongly vast majority Giant Scale model ers strongly support AMA standards size now stand AMA standards extremely fair very deepy appreci ated us heavily involved Giant Scale think AMA leadership has kind stuck necks out support Giant Scale activity especially since movement start has avoided AMA affiliation anti-AMA sentiment just could avoid political hassles us occasionally fly planes larger 55 lb should carry own private insurance no way standard modeling should have stick necks out accept responsibility excep tionally oversize extremely rare models person wants build models size fly should responsible enough get primary insurance isnt responsible has no business being hobby begin Lees thoughts about builders models weighing over 55 Ib carrying own surance may well provoke some correspond ence make sense Although havent investigated cost individual insurance heavy models would venture say would small portion total cost such undertaking Mean issue whether increase AMA weight limit models remains un resolved continues draw corre spondence recent letter AMA Execu tive Director John Worth contained some interesting recommendations has forwarded members AMA Safety Committee consideration ythe risk filling mailbox letters irate aficionados big models recommendations can paraphrased fol lows 1 For Models Excess 20 lb Gross Weight Continued page 18 16 Model Aviafion Wingspan 56 Channels 2 -3 Wing Area 690 sq Engine 19 35 opper complete 1/6 scale R/C model kit designed assemblelook fly like famous WeedhopperTM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE IL 61473 PHONE 309/426-2161 BIGE Now Available QUADRAS TOO Thats right BIG E now available both EVRA QUADRA engines theres BIG E PERFORMS flys like dream. its fully aerobatic realistic speeds ONLY $224~ plus $1000 shipping handling US Specify EVRA QUADRA engine order VISA MC Accepted Specifications Wingspan84 Length70 Weight14-1/2lbsreadytotly AirtoiiSymmetrical PowerEVRA QUAPPA engines aerobatics sunday flying BIG E fantastic takes off lands performs like champion Building easyl carefully thought out partially prebuilt kit offers features Easy build.20 hours box sanding hardwood plywood precut size Fuselage sides preformed full length stringers vertical braces glued place Firewall predrilled EVPA QUADRA engines Please specify Unique wing attachment makes alignment installation super easy Great ground handling BIG E extra long fuselage landing gear location Precovered hard cover foam wing turtle deck Flys full pattern power spare Includes hardware EVRA OwflerSParts EVRAengine Update NOW Available Motor Mount Engine Modirlcntions IncludeLord Mounts $1900 increased power Easy hand-starting Twin Stack Muffler turns 18-8 prop 7200 RPM Full-circle ring conversion $2495 Balanced reduced vibration improved timing Baianced crank flywheel optimized reed vaive Rual Hub $1495 Lord Mounts $150 ea ONLY $4500 vw Send check or8631 F Laredo Ln ScoTtsdale money order toE & L ManufacturingArizona 85253 41-0633A World War / isnt Quite Over Yet EINDECKER E-III Please add $2 postageihandling N Y residents add 7 % $3495Balsa & Plywood Construction T6 55 Wingspan / 35 45 Engines 01 Wng 2 e4Cu n Engines GIANT RIC SCALE Morane SAULNIER N * Beau u yMededFbegass Fuselage1 SOSSq AaaB U riewnOduc 000 SOloc avo es * Detail-Melded Transparent Canopyhe rugged cOnsiructius lit 01 tie die-cut pails Both have * Rugged Fiberglss Molded Engine Cnwliegcorspiete itt $27500a histOry 01 contest csiris Easy 10 huiid superb slight * V Plywsud Firewall Hardware includedpius 510 00 ship0 og & haridiirgPlease add $2 postagelhandling * Farmed dia Lsedieg Gesr Legs ny excess ntundedi * Relied Plans ond InstrunlloasvP resiverri add p3-4 Channel RIC Systems$3795 GD-. . a Must have two separate RC guidance systems event fail ure must capable controlling major flight control surfaces powerplant provided no less 50% efficiency b Have additional device arrest powerplant via two RC systems c Before being flown AMA-sanctioned events activities must have flown isolated region away public popu lated area minimum 10 hours included least 20 takeoffs landings witnessed two other AMA members d The two witnesses must present whenever model flown AMAsanctioned events activities e The RC systems control flight controls powerplant elec trical supply sources must replaced after 12-month period 2 For Models Excess 40 lb Gross Weight a Must flown according condi tions stated items through e b Must undergo same step-by-step inspection during construction re quired man-carrying homebuilt aircraft flight-tested airworthiness experienced person has no less 500 hours piloting models experience during past two years also holds valid FAA pilots license full-scale air craft Perhaps recommendations appear extreme measures bear mind contain recommended model weight limit Which better reasonable weight limit some stringent rules cater minority seem constantly strive builder flier worlds biggest model airplane dont know weight /2-scale Pitts S-iS displayed Toledo year its 18-hp Limbach engine swings 36-12 prop puts different category models expect see flown local clubs flying field Perhaps race biggest block will stop Federal Government FAA notices such flying machines still call models Are willing let intercede settling issue maxi mum model weight safe operating pro cedures Id rather have happen about Moving right along havent mentioned Sailplanes seems like last time motorless models subject column regard being flown over houses people somewhere West Coast District X VP Jim Scarborough sent some newspaper clippings told tale An other communication Jim enclosed page newsletter Santa Clarita Soaring Association editors Hank Schorz Ron Lindgren article Winch Safety Bob Owens Continued page 97 18 Model Aviation Safety/Preston Continued page 18 Sailplane enthusiast take heed following Recently club members suf fered significant injury hand winch line attempting untangle backlash winches club contest spectator strolled over observe inadvertently stepped winchs pedal switch Suddenly fellow working line hand entangled line winch started up full 12 volts motor stalled out hand jammed reel Blood spattered three fingers cut badly bruised finger diagnosed brokenit wouldnt move accident over almost before began except injured hand Lets take closer look accident deter repeat can prevented future 1 winchs power should have switched off its battery disconnected fore attempting untangle line 2 pedal switch happened small black three-in-square unit almost invisible unmowed lawn No wonder spectator didnt see pedals should mounted larger base painted bright color make conspicuous 3 Spectator control has very lax flying sites Safety everyones job Spectators should kept away flight line also away winchline turnaround recommend member closest offender kindly explain po tential danger winches ask him stand back away flightline Although involved accident also hazards pulling winch lines Keep clear lines walking downfield returning No pilot should launch until retrievers clear lines aware model about launched will preclude retriever inadvertently walking moving line obvious potential danger retriever pulling line anyone steps pedal switch natu ral walk winch line para chute draped over shoulder Just imagine line cutting shoulder ing slapped face eyes para chute ring Always hold line such manner winch starts up line chute will drag across part body accident too Lets make pedal switches obvious exercise extreme care around win ches keep spectators out danger dont think need add anything Bobs recommendations regarding safety around winches other say despite majesty silence Sailplanes can hazardous too Continued page 128 New 1AA Quickie 200 Torque absorp tion nose struc ture Americas fastest 1AA Quickie 200 $2695 Dave Latshas T-Tailed Rivets Custom glass fuse Complete kit wheels News Flash Ri vets wins Tangerine Int See local dealer order directMd residents add 5% tax PLANE MODELS 2868 Hambleton Rd Riva MD 21140 K U OSTATIC DISPLAYS 20 Categories 0 DEMONSTRATIONS eODELTADARTCONTEST SWAP SHOP 11th ANNUAL GREATER CHICAGO RADIO CONTROLLED MODEL SHOW I U U U U U U o NEW PRODUCT October 1983 97 #J#Ji gned Quickie 500 racing sport flying Kit features hand cut balsa ply s Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Maryland races four years other Quickie 500 racers combined o CARS BOATS & AIRPLANES l6th M L Oil pO 4ort0OX22i IL 60053 FASTEN YOUR SEA TBELTS! .ATTYOU CROSS THE THRESHOLD TO THE BLUE ANGELS EX PERIENCE YOU CAN NOW THRILL TO THE REAL LIFE ADVENTURE WITH SIX DARING MEN AND THEIR FLYING MACHINES SIT IN FRONT ROW COCKPIT AND SENSE THE EMOTIONS AND EXTREME CONCEN TRATION AS YOUR DOUGLAS F-4J PHANTOM GOES THROUGH ITS PACES WITH 32000 POUNDS OF THRUST TO TOP SPEED OF 1600 MPH! FULL COLOR VIDEO WITH NAR RATION AND ACTUAL SOUNDS MUSIC BY FRED MYROW 1/2 VHS D V2 Beta 1 El 1/2 Beta2 El 46 mm VIDEO $6500 K 89 min$8500 El Shipping $250 ea lilust Info Pkg $200 El refundable purchase VISA El MASTERCHARGE El Number_________ date_______ N moo _________StateZip AUDIO VISUALS INTERNATIONAL PO BOX 1390 WOODLAND WASHINGTON 98674 Nick Zirolis F4U CORSAIR 2 Cu size Engines Fibergiass Fuse age & Cowlieg aua able fur lee O5SiQC GIANT RIC SCALE PLAN DESIGNS AT6 TEXAN24 I101Span52700ppUSA POKKER DR27163Tripe$2000ppUSA PAP REARCAT2 186Span$2700ppUSA CURTISS P402 194Span$2700ppUSA FAU CORSAIR2Y 193Span$2700ppUSA Fiberglass Cowliegs & Canopies available ase Send sramp aelaileg urusnures Giaer Scale Accessurius Oar Fans seer Fusfpaid arilbin UgAl last item leave also con cerns Sailpianes sort came form short note photograph Dale Willoughby will know has vast collection documentation photographs Scale modelers available Scale Model Research Orange CA As can seen accompanying photograph subject Dales story electric-powered Sailplane-like model being launched recent US/International F3E Challenge com petition photo taken moment wind gust caused model twist launcher Dale Blacks hand Dale member Harbor Soaring Society long-time RC Sailplane Ilier momentarily forgot model whirling prop its nose quick grab straighten twisting model resulted some nasty cuts left hand Moral Dont grab business end F3E Have safe month John Preston 7012 Elvira Cr Falls Church VA 22042 Fun/Winter Continued page 28 lems inadequately-sized vertical tail area old designs Author case full-scale old-timers am great believer sticking orig inal scale size compensating providing thicker effective sec tion Most modelers completely ignore aerodynamics come tail cut out sheet material cause comparatively small size tail surfaces models need especial attention section used sug gestion square trailing edge good Author talking model aile rons flutterpointed control sur face edges probablyand Joe Bridis constant-thickness ailerons trainers Author I half-buy However smaller model tougher stick scale tail areas time get 1/5-scale larger ability hold hold scale size penal ty becomes increasingly greater de part scale airfoils resort freely flat-bottomed ones Especially thick have serious CP travel increasing angles attack thus require larger tail area symmetrical semi-symmetri cal some other scale section used first case because mon keying around might need 30% stab latter less 20% 15% less ship least 4/2 5 ft span long fuselage arm 10% would feasible some cases talk full-scale powerplane experience glider experience scanty have noted RC models sectioned stabs streamlined double-triangles end-to-end ribs fly better sheet-tailed crates dont have foggiest reason respected pilots say true Bentson Perhaps best argument upward-rigged ailerons comes modern sailplanes camber-changing flaps ailerons arranged move up down flaps Although would preferable take off aerotow flaps slightly down common practice take off least initiate takeoff run flaps up cause better aileron control obtained less likelihood wing tip touching ground case aile ron drag factor because tow attachment nose Humor guys because game plan column has gone up smoke Old-timer modelers Indoors Sailplanes FF Power etc have dozens years hands-on experience better Rubber Scalersand Wakefielders Nordic guys think Tweakers Breathers fine tuning crates seems stream consciousness us books articles aerodynamics appear written folks weve never met greater man able communicate matters far beyond us simple understandable wayand truths revealed witnessed TV worlds greatest musicians con duct Masters Classescelloist Casals exampleyou mesmerized ability true geniuses touch gestures simple words humblest student dare say Ein stein field Dr Lippisch could convey over coffee glimpse im ponderables unattainable lifetime reading Having nothing prove great teachers dont blow us away avalanches math gobbledygook contrived impress peers close loopholes criticism other elitists talking During early 1930s once sat up night reading small book aero dynamics explained airplane flew basics stability factors propeller design designer went about buildingblock process based rudimentary things probably way people like Bellanca Fokker etc wrought magic simple book seemed like Christmas Future So humble author George Page greatest designers age man produced miracles Curtiss years before war Youll never see book like again alas read About Size January 1978 Model Aviation Brad Powers experienced vision basic relationships Powers long re tired few readers knew renowned project engineer Convair participated long string re markable aircraft Somewhat like Page compressed universe rare 128 Model Aviation
Edition: Model Aviation - 1983/10
Page Numbers: 12, 14, 16, 18, 97, 128
S Cvnwsflrsfl Emergency landings thoughts Giant modelsinsurance operations Sailplane winch safety precautions Electric props bite too John Preston BY THE TIME get around read ing column Summer 83 will about over However Im hastening finish get mail before leaving long Fourth July weekend beach know hot humid summers Washington DC area can will appreciate much Im looking forward chance get away used time such weather didnt bother Id willitigly stand field 900F higher temperatures sweat buckets over latest RC creation Somehow doesnt hold much fascination anymoremust getting old Anyway months offerings first comes Lee Tay lor originally written local clubs newsletter Lee will well aware founder IMAA point making following article applies pilots RC modelsnot just Giant Scalers Overesting exciting lifting Macho Leeimage yourself sure hard airPlanes pocketbooks Emergency Procedure Lee Taylor know guys model flying kind weird hobby guess much like hobby have old-timers actual experts self-appointed ex perts beginners Probably strongest things about hobby though virtually subject can get several different opinions about handle specific situation Personally have overriding concern anything Im chicken will just about anything can done model like approach very care fully easily stages impor tant whenever sense anything might wrong want model ground like now No hesitation no Humm wonder what was' No 'Lets check out little further' L-A-N-D NOW have very simple philosophy about kind situation whole lot safer check out potential problem ground try find out what problem air Delaying landing experiencing problems may interWhat has brought little tirade instance happened couple weekends ago flying favorite little Spitfire having ball usual Fullbore 450-dive strafing passes low inverted passes nice smooth big scalelike loops rolls etc noticed retrim nose-up slightly Humm bird never changed trim before Oh well no big deal minute later again little extra nose-up trim needed Wonder what causing think myself Fuel burn No havent up long Oil tail exhaust Pushrods stretching heat Maybe servo drifting Models still flying fine no prob lems Nothing really worry ab HEY IDIOT RULE ONE Power yanked off immediate landing no problems couple guys walked over asked hurried landingI never fly short time Dont really khow guys just started picking up little downelevator-trim drift make long juicy story slightly shorter didnt take long find out having trim drift ele vator hinge left completely installed Continued page 14 12 Model Aviation Ij -I 2 Hm-rv-n' THAT COIALV MEANTOI4BLE-I Ir ETTER 3lNer E iN V An accident just about happen Dale Black set launch electric-powered F3E model gust wind caught look wing skewed fuselage Dale f lies Sailpianes lotmust have forgotten stant prop nose reached up steady plane left hand CHOMP-CHOMP Fly LEADERS ! DU-BRO WORLDS LEADER/~ MODEL PRODUCTS. -L-AIRE II No 235 Ig5 THE FINAL FILTER ultimate in-line filter twice much fuel filtering capacity No182$175 TANK FILTER Combination weighl tiller designed tit clunk Md gm No 6S 5 KWIK-GLO 010 Plug Connector piece brass barrel snaps onto plug postve start 24 2 w th batt lugslB U yo Na 147S225 Backpressure noise level can varied adjusting muffling spring out fits engine 09 80 Spring Steel AXLE SHAFTS No246 1/txl/8dia No 247 11/Ax5/32dla 8 2x5/32dla No 249 2 x 3/16 dla Pkg 2 $200 KWIK-FILL FUEL PUMPS iiL COMPLETE FUELING SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTERSMOOTH INFLATABLES TAN) OPiRATiDA PUMP) IT AND 0. VGAGALLON QUART Qfl PINTNaDiameter Per pair FITS ON VOLUME SIZE CANS I 40CR 4' $875 PLOP INo 191 010 Fuel45CR4/z$1095 ShillSFeatures two piece bolt to50CR5$1315 No 250 Gas/dieselgether hubs hub caps Re55CR5Iz$1535 Si 195markably realistic looking60CR6$1755 ocket Bolt orR1IA$300 Head NoDiaPer pair BALL WRENCH SET T200TarR2$325 225TRorS2Io$350 Fts 440 632 head SMOOTH SLICKS TREAD 250 TRarS 2/U $375 Ibolts Leads cap aluminum finish wheel hubs 275 T R S 2IA $400 Iscrew bead trom angleThese low bounce shock absorbing300 T R $3$425 INo 132 bladeswheels feature nylon metalic325 Tar R 31/A' $450 $525finish Pairs matched balance350 Tar R3Vo $475 BRASS PLATED DURA-COLLARSCat Na 137 NICKEL PLATED SOLDER LINKSEnough stock threads will not138 strip can re-worked br many139 other uses Sets include Allen Wrench140 141 3/16 [v32][b-2-10-1-10]]Ava table sets 4$80 per set Nickel plated links will corrode make attractive easy solderHeavy duty connector tor servo control hornVflCat No 243 7/32 Cat Na 112 2 link guards S59244 $100 2 per set k4j4I No Size W 8-32 NYLON FLAT & SPLIT WASHERS 309 2-56 x 10 SOCKET HEAD 310 2-56 x h 8 INSERT LOCKNoSize 3112-56 x tA6321No2 FLAT CAP SCREWSNUTS322Na2 SPLIT 3124-40 x 1101323No4 FLAT 81-i 313A-40 x 1/15~324No 4 SPLIT 315 632x10325No6 FLAT P 3156-32X 1I8326No6 SPLIT 3176-32x 1Is61No 3292OPerPkg327Na8 FLAT P 3188-32x 18lOPer Package 328NO8 SPLIT 1 1/N6 $100 per packagePh 41$100 IIhIIIIiIi II C S 14 Model Aviation pulled completely Out next lost its hinge pin third loose far outboard hinge still intact Thirty seconds longer probably wouldnt have plane Cause prob ably picked up little elevator flutter terminal full-power dives Didnt see though just noticed little trim change Second story Jack Strickland up demonstrating new Contempo Cap 21 us letting us fly flying never landed next Roger Grotheer done sever-1 times noticed little sloppines developing controls threw th transmitter Roger screamed Land NOW batterys going dead Roger yanked off power spun around lost control three ft high flare got back just time straighten out bouncedown got down safely plane rolled stop close by time walked over control would move Third story Giant Scale Fly-in Nosen Cessna 310 being flown its owner noted fliers engine failed No problem guys can handle 'Ill fly baby hang buddy plane staggered around field three tines low altitude plenty room land virtually direction Hero Pilot wasnt going anything fly bird land feet cheers crowd Instead poor plane finally gave up snap rolled disintegrated pile splinters Fourth story focal field test pilot flying new plane beginner Scale builder plane Cub Midway through flight wing strut came loose seen dangling Jim dont know put wing struts shouts intrepid test pilot roblem though just little extra dihedral wing tubes holding fine shouts little laugh Two minutes later wing folded level flight fifth final story concerns Jim Fol lines magnificent Giant Scale PT-19 self flying Seven minutes flight attempted loop couldnt get enough up elevator pull over 'Battery' screamed myself Yank off power try get down instantly Too high too fast safe downwind landing Up half power try make pattern onto upwind normal landing Halfway down downwind leg lost motor control en gine half power power-on landingget down' Roll onto base diving runway roll onto final speed pretty high doesnt want come out turn onto final Regain momentary aileron long enough get level might make it' Halfway down glide path half power battery died completely plane arced over hit almost vertically needed another fifteen seconds point guys is Very seldom will Continued page 16 MINIATURE TOO LS Fresh brand name merchandise shipped directly doorATSA VINGS UP TO 40% SPECIAL LETS GET ACQUAINTED OFFER use miniature tools youll find outstanding values like ourMICROFLAME BRAZING IHhI\ new MICROMARK catalog Over 400~LDERINGKIT tools accessories hard toItem #17101 AV UJ find Save time save money shop one-RegularPrice52995 stop M ICROMARKMICROMARK SALE PRICE 51995 Mail NORISK coupon TODAYplus $200 insured delivery TOTAL 5 DREMEL DELUXE VARIABLE ________-SPEED MOTOTOOL KIT -With 40 accessories Item #38271AV Regular Price 9495 MICROMARK SALE PRICE 55995 plus 5400 insured delivery TOTAL 5 JEWELER S HAND VISE CARBON STEELiiIIii1 Made p0 shed steeItem #21102 AV DRILL BIT SET11111k iLF1ReularPrce $1195 iwSALE PRICE 5695 20 micro-sized drill bitsJLT~plus 70 nsured del very TOTAL57 55 Item #26110AvI Regular Price 51995I plus 5150 insured delivery TOTAL 5 MICRO4IARK SALE PRICE 51495 SAVE TIME ORDER TOLL-FREE 1-800-225-1066 credit card 24 hours 7 days weekl NJ call 201-464-6764 mm m ORDER COUPONm MICRDUARK 5112 AV e 24 East Main Street Clinton NJ 08809U please sand items indicated below WyItem #Price EcTotalTotal enclosed 5 check money order payable MICRO4ARK sorry no coosI charge er card []viseI iiI I5iunatureU HNAMEI Iabsolutely tree big new MICROaIAISK TOOL CATALOGI wish order Im Ordenog now yoar TOOL CATALOGADDRESS Itsr 51 postpaid NJresidents add appropriate sales tanCITYSTATEZIP U NORISACIJSTOMER6UARANTEE Yos nuns 100% delighted retom order within 14 days toralull retand purchase Deco 1mm mm mm mmm mmmm m o MIcRO-MARK 1983 mmmmmmm mmmm mm1 plane fail catastrophically least some warning first little bobble glitch failure notice WARN ING pay attention warning did battery Stricklands airplane time slight trim change Spitfire second time LAND IMMEDIATELY check out prob lem might have plane fly next weekend try macho out ig nore delay just little bit tightening noose around own neck first little bobble glitch failure click hammer gun being pulled back DUCK arent too people fast enough duck hear click trigger being pulled times wait second click DEAD DUCKS letter accompanied article Lee included some comments weight limit Giant Scale models Over Lee again As founder IMAA owner pilot three planes over 55-lb AMA weight limit can state very strongly vast majority Giant Scale model ers strongly support AMA standards size now stand AMA standards extremely fair very deepy appreci ated us heavily involved Giant Scale think AMA leadership has kind stuck necks out support Giant Scale activity especially since movement start has avoided AMA affiliation anti-AMA sentiment just could avoid political hassles us occasionally fly planes larger 55 lb should carry own private insurance no way standard modeling should have stick necks out accept responsibility excep tionally oversize extremely rare models person wants build models size fly should responsible enough get primary insurance isnt responsible has no business being hobby begin Lees thoughts about builders models weighing over 55 Ib carrying own surance may well provoke some correspond ence make sense Although havent investigated cost individual insurance heavy models would venture say would small portion total cost such undertaking Mean issue whether increase AMA weight limit models remains un resolved continues draw corre spondence recent letter AMA Execu tive Director John Worth contained some interesting recommendations has forwarded members AMA Safety Committee consideration ythe risk filling mailbox letters irate aficionados big models recommendations can paraphrased fol lows 1 For Models Excess 20 lb Gross Weight Continued page 18 16 Model Aviafion Wingspan 56 Channels 2 -3 Wing Area 690 sq Engine 19 35 opper complete 1/6 scale R/C model kit designed assemblelook fly like famous WeedhopperTM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE IL 61473 PHONE 309/426-2161 BIGE Now Available QUADRAS TOO Thats right BIG E now available both EVRA QUADRA engines theres BIG E PERFORMS flys like dream. its fully aerobatic realistic speeds ONLY $224~ plus $1000 shipping handling US Specify EVRA QUADRA engine order VISA MC Accepted Specifications Wingspan84 Length70 Weight14-1/2lbsreadytotly AirtoiiSymmetrical PowerEVRA QUAPPA engines aerobatics sunday flying BIG E fantastic takes off lands performs like champion Building easyl carefully thought out partially prebuilt kit offers features Easy build.20 hours box sanding hardwood plywood precut size Fuselage sides preformed full length stringers vertical braces glued place Firewall predrilled EVPA QUADRA engines Please specify Unique wing attachment makes alignment installation super easy Great ground handling BIG E extra long fuselage landing gear location Precovered hard cover foam wing turtle deck Flys full pattern power spare Includes hardware EVRA OwflerSParts EVRAengine Update NOW Available Motor Mount Engine Modirlcntions IncludeLord Mounts $1900 increased power Easy hand-starting Twin Stack Muffler turns 18-8 prop 7200 RPM Full-circle ring conversion $2495 Balanced reduced vibration improved timing Baianced crank flywheel optimized reed vaive Rual Hub $1495 Lord Mounts $150 ea ONLY $4500 vw Send check or8631 F Laredo Ln ScoTtsdale money order toE & L ManufacturingArizona 85253 41-0633A World War / isnt Quite Over Yet EINDECKER E-III Please add $2 postageihandling N Y residents add 7 % $3495Balsa & Plywood Construction T6 55 Wingspan / 35 45 Engines 01 Wng 2 e4Cu n Engines GIANT RIC SCALE Morane SAULNIER N * Beau u yMededFbegass Fuselage1 SOSSq AaaB U riewnOduc 000 SOloc avo es * Detail-Melded Transparent Canopyhe rugged cOnsiructius lit 01 tie die-cut pails Both have * Rugged Fiberglss Molded Engine Cnwliegcorspiete itt $27500a histOry 01 contest csiris Easy 10 huiid superb slight * V Plywsud Firewall Hardware includedpius 510 00 ship0 og & haridiirgPlease add $2 postagelhandling * Farmed dia Lsedieg Gesr Legs ny excess ntundedi * Relied Plans ond InstrunlloasvP resiverri add p3-4 Channel RIC Systems$3795 GD-. . a Must have two separate RC guidance systems event fail ure must capable controlling major flight control surfaces powerplant provided no less 50% efficiency b Have additional device arrest powerplant via two RC systems c Before being flown AMA-sanctioned events activities must have flown isolated region away public popu lated area minimum 10 hours included least 20 takeoffs landings witnessed two other AMA members d The two witnesses must present whenever model flown AMAsanctioned events activities e The RC systems control flight controls powerplant elec trical supply sources must replaced after 12-month period 2 For Models Excess 40 lb Gross Weight a Must flown according condi tions stated items through e b Must undergo same step-by-step inspection during construction re quired man-carrying homebuilt aircraft flight-tested airworthiness experienced person has no less 500 hours piloting models experience during past two years also holds valid FAA pilots license full-scale air craft Perhaps recommendations appear extreme measures bear mind contain recommended model weight limit Which better reasonable weight limit some stringent rules cater minority seem constantly strive builder flier worlds biggest model airplane dont know weight /2-scale Pitts S-iS displayed Toledo year its 18-hp Limbach engine swings 36-12 prop puts different category models expect see flown local clubs flying field Perhaps race biggest block will stop Federal Government FAA notices such flying machines still call models Are willing let intercede settling issue maxi mum model weight safe operating pro cedures Id rather have happen about Moving right along havent mentioned Sailplanes seems like last time motorless models subject column regard being flown over houses people somewhere West Coast District X VP Jim Scarborough sent some newspaper clippings told tale An other communication Jim enclosed page newsletter Santa Clarita Soaring Association editors Hank Schorz Ron Lindgren article Winch Safety Bob Owens Continued page 97 18 Model Aviation Safety/Preston Continued page 18 Sailplane enthusiast take heed following Recently club members suf fered significant injury hand winch line attempting untangle backlash winches club contest spectator strolled over observe inadvertently stepped winchs pedal switch Suddenly fellow working line hand entangled line winch started up full 12 volts motor stalled out hand jammed reel Blood spattered three fingers cut badly bruised finger diagnosed brokenit wouldnt move accident over almost before began except injured hand Lets take closer look accident deter repeat can prevented future 1 winchs power should have switched off its battery disconnected fore attempting untangle line 2 pedal switch happened small black three-in-square unit almost invisible unmowed lawn No wonder spectator didnt see pedals should mounted larger base painted bright color make conspicuous 3 Spectator control has very lax flying sites Safety everyones job Spectators should kept away flight line also away winchline turnaround recommend member closest offender kindly explain po tential danger winches ask him stand back away flightline Although involved accident also hazards pulling winch lines Keep clear lines walking downfield returning No pilot should launch until retrievers clear lines aware model about launched will preclude retriever inadvertently walking moving line obvious potential danger retriever pulling line anyone steps pedal switch natu ral walk winch line para chute draped over shoulder Just imagine line cutting shoulder ing slapped face eyes para chute ring Always hold line such manner winch starts up line chute will drag across part body accident too Lets make pedal switches obvious exercise extreme care around win ches keep spectators out danger dont think need add anything Bobs recommendations regarding safety around winches other say despite majesty silence Sailplanes can hazardous too Continued page 128 New 1AA Quickie 200 Torque absorp tion nose struc ture Americas fastest 1AA Quickie 200 $2695 Dave Latshas T-Tailed Rivets Custom glass fuse Complete kit wheels News Flash Ri vets wins Tangerine Int See local dealer order directMd residents add 5% tax PLANE MODELS 2868 Hambleton Rd Riva MD 21140 K U OSTATIC DISPLAYS 20 Categories 0 DEMONSTRATIONS eODELTADARTCONTEST SWAP SHOP 11th ANNUAL GREATER CHICAGO RADIO CONTROLLED MODEL SHOW I U U U U U U o NEW PRODUCT October 1983 97 #J#Ji gned Quickie 500 racing sport flying Kit features hand cut balsa ply s Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Maryland races four years other Quickie 500 racers combined o CARS BOATS & AIRPLANES l6th M L Oil pO 4ort0OX22i IL 60053 FASTEN YOUR SEA TBELTS! .ATTYOU CROSS THE THRESHOLD TO THE BLUE ANGELS EX PERIENCE YOU CAN NOW THRILL TO THE REAL LIFE ADVENTURE WITH SIX DARING MEN AND THEIR FLYING MACHINES SIT IN FRONT ROW COCKPIT AND SENSE THE EMOTIONS AND EXTREME CONCEN TRATION AS YOUR DOUGLAS F-4J PHANTOM GOES THROUGH ITS PACES WITH 32000 POUNDS OF THRUST TO TOP SPEED OF 1600 MPH! FULL COLOR VIDEO WITH NAR RATION AND ACTUAL SOUNDS MUSIC BY FRED MYROW 1/2 VHS D V2 Beta 1 El 1/2 Beta2 El 46 mm VIDEO $6500 K 89 min$8500 El Shipping $250 ea lilust Info Pkg $200 El refundable purchase VISA El MASTERCHARGE El Number_________ date_______ N moo _________StateZip AUDIO VISUALS INTERNATIONAL PO BOX 1390 WOODLAND WASHINGTON 98674 Nick Zirolis F4U CORSAIR 2 Cu size Engines Fibergiass Fuse age & Cowlieg aua able fur lee O5SiQC GIANT RIC SCALE PLAN DESIGNS AT6 TEXAN24 I101Span52700ppUSA POKKER DR27163Tripe$2000ppUSA PAP REARCAT2 186Span$2700ppUSA CURTISS P402 194Span$2700ppUSA FAU CORSAIR2Y 193Span$2700ppUSA Fiberglass Cowliegs & Canopies available ase Send sramp aelaileg urusnures Giaer Scale Accessurius Oar Fans seer Fusfpaid arilbin UgAl last item leave also con cerns Sailpianes sort came form short note photograph Dale Willoughby will know has vast collection documentation photographs Scale modelers available Scale Model Research Orange CA As can seen accompanying photograph subject Dales story electric-powered Sailplane-like model being launched recent US/International F3E Challenge com petition photo taken moment wind gust caused model twist launcher Dale Blacks hand Dale member Harbor Soaring Society long-time RC Sailplane Ilier momentarily forgot model whirling prop its nose quick grab straighten twisting model resulted some nasty cuts left hand Moral Dont grab business end F3E Have safe month John Preston 7012 Elvira Cr Falls Church VA 22042 Fun/Winter Continued page 28 lems inadequately-sized vertical tail area old designs Author case full-scale old-timers am great believer sticking orig inal scale size compensating providing thicker effective sec tion Most modelers completely ignore aerodynamics come tail cut out sheet material cause comparatively small size tail surfaces models need especial attention section used sug gestion square trailing edge good Author talking model aile rons flutterpointed control sur face edges probablyand Joe Bridis constant-thickness ailerons trainers Author I half-buy However smaller model tougher stick scale tail areas time get 1/5-scale larger ability hold hold scale size penal ty becomes increasingly greater de part scale airfoils resort freely flat-bottomed ones Especially thick have serious CP travel increasing angles attack thus require larger tail area symmetrical semi-symmetri cal some other scale section used first case because mon keying around might need 30% stab latter less 20% 15% less ship least 4/2 5 ft span long fuselage arm 10% would feasible some cases talk full-scale powerplane experience glider experience scanty have noted RC models sectioned stabs streamlined double-triangles end-to-end ribs fly better sheet-tailed crates dont have foggiest reason respected pilots say true Bentson Perhaps best argument upward-rigged ailerons comes modern sailplanes camber-changing flaps ailerons arranged move up down flaps Although would preferable take off aerotow flaps slightly down common practice take off least initiate takeoff run flaps up cause better aileron control obtained less likelihood wing tip touching ground case aile ron drag factor because tow attachment nose Humor guys because game plan column has gone up smoke Old-timer modelers Indoors Sailplanes FF Power etc have dozens years hands-on experience better Rubber Scalersand Wakefielders Nordic guys think Tweakers Breathers fine tuning crates seems stream consciousness us books articles aerodynamics appear written folks weve never met greater man able communicate matters far beyond us simple understandable wayand truths revealed witnessed TV worlds greatest musicians con duct Masters Classescelloist Casals exampleyou mesmerized ability true geniuses touch gestures simple words humblest student dare say Ein stein field Dr Lippisch could convey over coffee glimpse im ponderables unattainable lifetime reading Having nothing prove great teachers dont blow us away avalanches math gobbledygook contrived impress peers close loopholes criticism other elitists talking During early 1930s once sat up night reading small book aero dynamics explained airplane flew basics stability factors propeller design designer went about buildingblock process based rudimentary things probably way people like Bellanca Fokker etc wrought magic simple book seemed like Christmas Future So humble author George Page greatest designers age man produced miracles Curtiss years before war Youll never see book like again alas read About Size January 1978 Model Aviation Brad Powers experienced vision basic relationships Powers long re tired few readers knew renowned project engineer Convair participated long string re markable aircraft Somewhat like Page compressed universe rare 128 Model Aviation
Edition: Model Aviation - 1983/10
Page Numbers: 12, 14, 16, 18, 97, 128
S Cvnwsflrsfl Emergency landings thoughts Giant modelsinsurance operations Sailplane winch safety precautions Electric props bite too John Preston BY THE TIME get around read ing column Summer 83 will about over However Im hastening finish get mail before leaving long Fourth July weekend beach know hot humid summers Washington DC area can will appreciate much Im looking forward chance get away used time such weather didnt bother Id willitigly stand field 900F higher temperatures sweat buckets over latest RC creation Somehow doesnt hold much fascination anymoremust getting old Anyway months offerings first comes Lee Tay lor originally written local clubs newsletter Lee will well aware founder IMAA point making following article applies pilots RC modelsnot just Giant Scalers Overesting exciting lifting Macho Leeimage yourself sure hard airPlanes pocketbooks Emergency Procedure Lee Taylor know guys model flying kind weird hobby guess much like hobby have old-timers actual experts self-appointed ex perts beginners Probably strongest things about hobby though virtually subject can get several different opinions about handle specific situation Personally have overriding concern anything Im chicken will just about anything can done model like approach very care fully easily stages impor tant whenever sense anything might wrong want model ground like now No hesitation no Humm wonder what was' No 'Lets check out little further' L-A-N-D NOW have very simple philosophy about kind situation whole lot safer check out potential problem ground try find out what problem air Delaying landing experiencing problems may interWhat has brought little tirade instance happened couple weekends ago flying favorite little Spitfire having ball usual Fullbore 450-dive strafing passes low inverted passes nice smooth big scalelike loops rolls etc noticed retrim nose-up slightly Humm bird never changed trim before Oh well no big deal minute later again little extra nose-up trim needed Wonder what causing think myself Fuel burn No havent up long Oil tail exhaust Pushrods stretching heat Maybe servo drifting Models still flying fine no prob lems Nothing really worry ab HEY IDIOT RULE ONE Power yanked off immediate landing no problems couple guys walked over asked hurried landingI never fly short time Dont really khow guys just started picking up little downelevator-trim drift make long juicy story slightly shorter didnt take long find out having trim drift ele vator hinge left completely installed Continued page 14 12 Model Aviation Ij -I 2 Hm-rv-n' THAT COIALV MEANTOI4BLE-I Ir ETTER 3lNer E iN V An accident just about happen Dale Black set launch electric-powered F3E model gust wind caught look wing skewed fuselage Dale f lies Sailpianes lotmust have forgotten stant prop nose reached up steady plane left hand CHOMP-CHOMP Fly LEADERS ! DU-BRO WORLDS LEADER/~ MODEL PRODUCTS. -L-AIRE II No 235 Ig5 THE FINAL FILTER ultimate in-line filter twice much fuel filtering capacity No182$175 TANK FILTER Combination weighl tiller designed tit clunk Md gm No 6S 5 KWIK-GLO 010 Plug Connector piece brass barrel snaps onto plug postve start 24 2 w th batt lugslB U yo Na 147S225 Backpressure noise level can varied adjusting muffling spring out fits engine 09 80 Spring Steel AXLE SHAFTS No246 1/txl/8dia No 247 11/Ax5/32dla 8 2x5/32dla No 249 2 x 3/16 dla Pkg 2 $200 KWIK-FILL FUEL PUMPS iiL COMPLETE FUELING SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTERSMOOTH INFLATABLES TAN) OPiRATiDA PUMP) IT AND 0. VGAGALLON QUART Qfl PINTNaDiameter Per pair FITS ON VOLUME SIZE CANS I 40CR 4' $875 PLOP INo 191 010 Fuel45CR4/z$1095 ShillSFeatures two piece bolt to50CR5$1315 No 250 Gas/dieselgether hubs hub caps Re55CR5Iz$1535 Si 195markably realistic looking60CR6$1755 ocket Bolt orR1IA$300 Head NoDiaPer pair BALL WRENCH SET T200TarR2$325 225TRorS2Io$350 Fts 440 632 head SMOOTH SLICKS TREAD 250 TRarS 2/U $375 Ibolts Leads cap aluminum finish wheel hubs 275 T R S 2IA $400 Iscrew bead trom angleThese low bounce shock absorbing300 T R $3$425 INo 132 bladeswheels feature nylon metalic325 Tar R 31/A' $450 $525finish Pairs matched balance350 Tar R3Vo $475 BRASS PLATED DURA-COLLARSCat Na 137 NICKEL PLATED SOLDER LINKSEnough stock threads will not138 strip can re-worked br many139 other uses Sets include Allen Wrench140 141 3/16 [v32][b-2-10-1-10]]Ava table sets 4$80 per set Nickel plated links will corrode make attractive easy solderHeavy duty connector tor servo control hornVflCat No 243 7/32 Cat Na 112 2 link guards S59244 $100 2 per set k4j4I No Size W 8-32 NYLON FLAT & SPLIT WASHERS 309 2-56 x 10 SOCKET HEAD 310 2-56 x h 8 INSERT LOCKNoSize 3112-56 x tA6321No2 FLAT CAP SCREWSNUTS322Na2 SPLIT 3124-40 x 1101323No4 FLAT 81-i 313A-40 x 1/15~324No 4 SPLIT 315 632x10325No6 FLAT P 3156-32X 1I8326No6 SPLIT 3176-32x 1Is61No 3292OPerPkg327Na8 FLAT P 3188-32x 18lOPer Package 328NO8 SPLIT 1 1/N6 $100 per packagePh 41$100 IIhIIIIiIi II C S 14 Model Aviation pulled completely Out next lost its hinge pin third loose far outboard hinge still intact Thirty seconds longer probably wouldnt have plane Cause prob ably picked up little elevator flutter terminal full-power dives Didnt see though just noticed little trim change Second story Jack Strickland up demonstrating new Contempo Cap 21 us letting us fly flying never landed next Roger Grotheer done sever-1 times noticed little sloppines developing controls threw th transmitter Roger screamed Land NOW batterys going dead Roger yanked off power spun around lost control three ft high flare got back just time straighten out bouncedown got down safely plane rolled stop close by time walked over control would move Third story Giant Scale Fly-in Nosen Cessna 310 being flown its owner noted fliers engine failed No problem guys can handle 'Ill fly baby hang buddy plane staggered around field three tines low altitude plenty room land virtually direction Hero Pilot wasnt going anything fly bird land feet cheers crowd Instead poor plane finally gave up snap rolled disintegrated pile splinters Fourth story focal field test pilot flying new plane beginner Scale builder plane Cub Midway through flight wing strut came loose seen dangling Jim dont know put wing struts shouts intrepid test pilot roblem though just little extra dihedral wing tubes holding fine shouts little laugh Two minutes later wing folded level flight fifth final story concerns Jim Fol lines magnificent Giant Scale PT-19 self flying Seven minutes flight attempted loop couldnt get enough up elevator pull over 'Battery' screamed myself Yank off power try get down instantly Too high too fast safe downwind landing Up half power try make pattern onto upwind normal landing Halfway down downwind leg lost motor control en gine half power power-on landingget down' Roll onto base diving runway roll onto final speed pretty high doesnt want come out turn onto final Regain momentary aileron long enough get level might make it' Halfway down glide path half power battery died completely plane arced over hit almost vertically needed another fifteen seconds point guys is Very seldom will Continued page 16 MINIATURE TOO LS Fresh brand name merchandise shipped directly doorATSA VINGS UP TO 40% SPECIAL LETS GET ACQUAINTED OFFER use miniature tools youll find outstanding values like ourMICROFLAME BRAZING IHhI\ new MICROMARK catalog Over 400~LDERINGKIT tools accessories hard toItem #17101 AV UJ find Save time save money shop one-RegularPrice52995 stop M ICROMARKMICROMARK SALE PRICE 51995 Mail NORISK coupon TODAYplus $200 insured delivery TOTAL 5 DREMEL DELUXE VARIABLE ________-SPEED MOTOTOOL KIT -With 40 accessories Item #38271AV Regular Price 9495 MICROMARK SALE PRICE 55995 plus 5400 insured delivery TOTAL 5 JEWELER S HAND VISE CARBON STEELiiIIii1 Made p0 shed steeItem #21102 AV DRILL BIT SET11111k iLF1ReularPrce $1195 iwSALE PRICE 5695 20 micro-sized drill bitsJLT~plus 70 nsured del very TOTAL57 55 Item #26110AvI Regular Price 51995I plus 5150 insured delivery TOTAL 5 MICRO4IARK SALE PRICE 51495 SAVE TIME ORDER TOLL-FREE 1-800-225-1066 credit card 24 hours 7 days weekl NJ call 201-464-6764 mm m ORDER COUPONm MICRDUARK 5112 AV e 24 East Main Street Clinton NJ 08809U please sand items indicated below WyItem #Price EcTotalTotal enclosed 5 check money order payable MICRO4ARK sorry no coosI charge er card []viseI iiI I5iunatureU HNAMEI Iabsolutely tree big new MICROaIAISK TOOL CATALOGI wish order Im Ordenog now yoar TOOL CATALOGADDRESS Itsr 51 postpaid NJresidents add appropriate sales tanCITYSTATEZIP U NORISACIJSTOMER6UARANTEE Yos nuns 100% delighted retom order within 14 days toralull retand purchase Deco 1mm mm mm mmm mmmm m o MIcRO-MARK 1983 mmmmmmm mmmm mm1 plane fail catastrophically least some warning first little bobble glitch failure notice WARN ING pay attention warning did battery Stricklands airplane time slight trim change Spitfire second time LAND IMMEDIATELY check out prob lem might have plane fly next weekend try macho out ig nore delay just little bit tightening noose around own neck first little bobble glitch failure click hammer gun being pulled back DUCK arent too people fast enough duck hear click trigger being pulled times wait second click DEAD DUCKS letter accompanied article Lee included some comments weight limit Giant Scale models Over Lee again As founder IMAA owner pilot three planes over 55-lb AMA weight limit can state very strongly vast majority Giant Scale model ers strongly support AMA standards size now stand AMA standards extremely fair very deepy appreci ated us heavily involved Giant Scale think AMA leadership has kind stuck necks out support Giant Scale activity especially since movement start has avoided AMA affiliation anti-AMA sentiment just could avoid political hassles us occasionally fly planes larger 55 lb should carry own private insurance no way standard modeling should have stick necks out accept responsibility excep tionally oversize extremely rare models person wants build models size fly should responsible enough get primary insurance isnt responsible has no business being hobby begin Lees thoughts about builders models weighing over 55 Ib carrying own surance may well provoke some correspond ence make sense Although havent investigated cost individual insurance heavy models would venture say would small portion total cost such undertaking Mean issue whether increase AMA weight limit models remains un resolved continues draw corre spondence recent letter AMA Execu tive Director John Worth contained some interesting recommendations has forwarded members AMA Safety Committee consideration ythe risk filling mailbox letters irate aficionados big models recommendations can paraphrased fol lows 1 For Models Excess 20 lb Gross Weight Continued page 18 16 Model Aviafion Wingspan 56 Channels 2 -3 Wing Area 690 sq Engine 19 35 opper complete 1/6 scale R/C model kit designed assemblelook fly like famous WeedhopperTM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE IL 61473 PHONE 309/426-2161 BIGE Now Available QUADRAS TOO Thats right BIG E now available both EVRA QUADRA engines theres BIG E PERFORMS flys like dream. its fully aerobatic realistic speeds ONLY $224~ plus $1000 shipping handling US Specify EVRA QUADRA engine order VISA MC Accepted Specifications Wingspan84 Length70 Weight14-1/2lbsreadytotly AirtoiiSymmetrical PowerEVRA QUAPPA engines aerobatics sunday flying BIG E fantastic takes off lands performs like champion Building easyl carefully thought out partially prebuilt kit offers features Easy build.20 hours box sanding hardwood plywood precut size Fuselage sides preformed full length stringers vertical braces glued place Firewall predrilled EVPA QUADRA engines Please specify Unique wing attachment makes alignment installation super easy Great ground handling BIG E extra long fuselage landing gear location Precovered hard cover foam wing turtle deck Flys full pattern power spare Includes hardware EVRA OwflerSParts EVRAengine Update NOW Available Motor Mount Engine Modirlcntions IncludeLord Mounts $1900 increased power Easy hand-starting Twin Stack Muffler turns 18-8 prop 7200 RPM Full-circle ring conversion $2495 Balanced reduced vibration improved timing Baianced crank flywheel optimized reed vaive Rual Hub $1495 Lord Mounts $150 ea ONLY $4500 vw Send check or8631 F Laredo Ln ScoTtsdale money order toE & L ManufacturingArizona 85253 41-0633A World War / isnt Quite Over Yet EINDECKER E-III Please add $2 postageihandling N Y residents add 7 % $3495Balsa & Plywood Construction T6 55 Wingspan / 35 45 Engines 01 Wng 2 e4Cu n Engines GIANT RIC SCALE Morane SAULNIER N * Beau u yMededFbegass Fuselage1 SOSSq AaaB U riewnOduc 000 SOloc avo es * Detail-Melded Transparent Canopyhe rugged cOnsiructius lit 01 tie die-cut pails Both have * Rugged Fiberglss Molded Engine Cnwliegcorspiete itt $27500a histOry 01 contest csiris Easy 10 huiid superb slight * V Plywsud Firewall Hardware includedpius 510 00 ship0 og & haridiirgPlease add $2 postagelhandling * Farmed dia Lsedieg Gesr Legs ny excess ntundedi * Relied Plans ond InstrunlloasvP resiverri add p3-4 Channel RIC Systems$3795 GD-. . a Must have two separate RC guidance systems event fail ure must capable controlling major flight control surfaces powerplant provided no less 50% efficiency b Have additional device arrest powerplant via two RC systems c Before being flown AMA-sanctioned events activities must have flown isolated region away public popu lated area minimum 10 hours included least 20 takeoffs landings witnessed two other AMA members d The two witnesses must present whenever model flown AMAsanctioned events activities e The RC systems control flight controls powerplant elec trical supply sources must replaced after 12-month period 2 For Models Excess 40 lb Gross Weight a Must flown according condi tions stated items through e b Must undergo same step-by-step inspection during construction re quired man-carrying homebuilt aircraft flight-tested airworthiness experienced person has no less 500 hours piloting models experience during past two years also holds valid FAA pilots license full-scale air craft Perhaps recommendations appear extreme measures bear mind contain recommended model weight limit Which better reasonable weight limit some stringent rules cater minority seem constantly strive builder flier worlds biggest model airplane dont know weight /2-scale Pitts S-iS displayed Toledo year its 18-hp Limbach engine swings 36-12 prop puts different category models expect see flown local clubs flying field Perhaps race biggest block will stop Federal Government FAA notices such flying machines still call models Are willing let intercede settling issue maxi mum model weight safe operating pro cedures Id rather have happen about Moving right along havent mentioned Sailplanes seems like last time motorless models subject column regard being flown over houses people somewhere West Coast District X VP Jim Scarborough sent some newspaper clippings told tale An other communication Jim enclosed page newsletter Santa Clarita Soaring Association editors Hank Schorz Ron Lindgren article Winch Safety Bob Owens Continued page 97 18 Model Aviation Safety/Preston Continued page 18 Sailplane enthusiast take heed following Recently club members suf fered significant injury hand winch line attempting untangle backlash winches club contest spectator strolled over observe inadvertently stepped winchs pedal switch Suddenly fellow working line hand entangled line winch started up full 12 volts motor stalled out hand jammed reel Blood spattered three fingers cut badly bruised finger diagnosed brokenit wouldnt move accident over almost before began except injured hand Lets take closer look accident deter repeat can prevented future 1 winchs power should have switched off its battery disconnected fore attempting untangle line 2 pedal switch happened small black three-in-square unit almost invisible unmowed lawn No wonder spectator didnt see pedals should mounted larger base painted bright color make conspicuous 3 Spectator control has very lax flying sites Safety everyones job Spectators should kept away flight line also away winchline turnaround recommend member closest offender kindly explain po tential danger winches ask him stand back away flightline Although involved accident also hazards pulling winch lines Keep clear lines walking downfield returning No pilot should launch until retrievers clear lines aware model about launched will preclude retriever inadvertently walking moving line obvious potential danger retriever pulling line anyone steps pedal switch natu ral walk winch line para chute draped over shoulder Just imagine line cutting shoulder ing slapped face eyes para chute ring Always hold line such manner winch starts up line chute will drag across part body accident too Lets make pedal switches obvious exercise extreme care around win ches keep spectators out danger dont think need add anything Bobs recommendations regarding safety around winches other say despite majesty silence Sailplanes can hazardous too Continued page 128 New 1AA Quickie 200 Torque absorp tion nose struc ture Americas fastest 1AA Quickie 200 $2695 Dave Latshas T-Tailed Rivets Custom glass fuse Complete kit wheels News Flash Ri vets wins Tangerine Int See local dealer order directMd residents add 5% tax PLANE MODELS 2868 Hambleton Rd Riva MD 21140 K U OSTATIC DISPLAYS 20 Categories 0 DEMONSTRATIONS eODELTADARTCONTEST SWAP SHOP 11th ANNUAL GREATER CHICAGO RADIO CONTROLLED MODEL SHOW I U U U U U U o NEW PRODUCT October 1983 97 #J#Ji gned Quickie 500 racing sport flying Kit features hand cut balsa ply s Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Maryland races four years other Quickie 500 racers combined o CARS BOATS & AIRPLANES l6th M L Oil pO 4ort0OX22i IL 60053 FASTEN YOUR SEA TBELTS! .ATTYOU CROSS THE THRESHOLD TO THE BLUE ANGELS EX PERIENCE YOU CAN NOW THRILL TO THE REAL LIFE ADVENTURE WITH SIX DARING MEN AND THEIR FLYING MACHINES SIT IN FRONT ROW COCKPIT AND SENSE THE EMOTIONS AND EXTREME CONCEN TRATION AS YOUR DOUGLAS F-4J PHANTOM GOES THROUGH ITS PACES WITH 32000 POUNDS OF THRUST TO TOP SPEED OF 1600 MPH! FULL COLOR VIDEO WITH NAR RATION AND ACTUAL SOUNDS MUSIC BY FRED MYROW 1/2 VHS D V2 Beta 1 El 1/2 Beta2 El 46 mm VIDEO $6500 K 89 min$8500 El Shipping $250 ea lilust Info Pkg $200 El refundable purchase VISA El MASTERCHARGE El Number_________ date_______ N moo _________StateZip AUDIO VISUALS INTERNATIONAL PO BOX 1390 WOODLAND WASHINGTON 98674 Nick Zirolis F4U CORSAIR 2 Cu size Engines Fibergiass Fuse age & Cowlieg aua able fur lee O5SiQC GIANT RIC SCALE PLAN DESIGNS AT6 TEXAN24 I101Span52700ppUSA POKKER DR27163Tripe$2000ppUSA PAP REARCAT2 186Span$2700ppUSA CURTISS P402 194Span$2700ppUSA FAU CORSAIR2Y 193Span$2700ppUSA Fiberglass Cowliegs & Canopies available ase Send sramp aelaileg urusnures Giaer Scale Accessurius Oar Fans seer Fusfpaid arilbin UgAl last item leave also con cerns Sailpianes sort came form short note photograph Dale Willoughby will know has vast collection documentation photographs Scale modelers available Scale Model Research Orange CA As can seen accompanying photograph subject Dales story electric-powered Sailplane-like model being launched recent US/International F3E Challenge com petition photo taken moment wind gust caused model twist launcher Dale Blacks hand Dale member Harbor Soaring Society long-time RC Sailplane Ilier momentarily forgot model whirling prop its nose quick grab straighten twisting model resulted some nasty cuts left hand Moral Dont grab business end F3E Have safe month John Preston 7012 Elvira Cr Falls Church VA 22042 Fun/Winter Continued page 28 lems inadequately-sized vertical tail area old designs Author case full-scale old-timers am great believer sticking orig inal scale size compensating providing thicker effective sec tion Most modelers completely ignore aerodynamics come tail cut out sheet material cause comparatively small size tail surfaces models need especial attention section used sug gestion square trailing edge good Author talking model aile rons flutterpointed control sur face edges probablyand Joe Bridis constant-thickness ailerons trainers Author I half-buy However smaller model tougher stick scale tail areas time get 1/5-scale larger ability hold hold scale size penal ty becomes increasingly greater de part scale airfoils resort freely flat-bottomed ones Especially thick have serious CP travel increasing angles attack thus require larger tail area symmetrical semi-symmetri cal some other scale section used first case because mon keying around might need 30% stab latter less 20% 15% less ship least 4/2 5 ft span long fuselage arm 10% would feasible some cases talk full-scale powerplane experience glider experience scanty have noted RC models sectioned stabs streamlined double-triangles end-to-end ribs fly better sheet-tailed crates dont have foggiest reason respected pilots say true Bentson Perhaps best argument upward-rigged ailerons comes modern sailplanes camber-changing flaps ailerons arranged move up down flaps Although would preferable take off aerotow flaps slightly down common practice take off least initiate takeoff run flaps up cause better aileron control obtained less likelihood wing tip touching ground case aile ron drag factor because tow attachment nose Humor guys because game plan column has gone up smoke Old-timer modelers Indoors Sailplanes FF Power etc have dozens years hands-on experience better Rubber Scalersand Wakefielders Nordic guys think Tweakers Breathers fine tuning crates seems stream consciousness us books articles aerodynamics appear written folks weve never met greater man able communicate matters far beyond us simple understandable wayand truths revealed witnessed TV worlds greatest musicians con duct Masters Classescelloist Casals exampleyou mesmerized ability true geniuses touch gestures simple words humblest student dare say Ein stein field Dr Lippisch could convey over coffee glimpse im ponderables unattainable lifetime reading Having nothing prove great teachers dont blow us away avalanches math gobbledygook contrived impress peers close loopholes criticism other elitists talking During early 1930s once sat up night reading small book aero dynamics explained airplane flew basics stability factors propeller design designer went about buildingblock process based rudimentary things probably way people like Bellanca Fokker etc wrought magic simple book seemed like Christmas Future So humble author George Page greatest designers age man produced miracles Curtiss years before war Youll never see book like again alas read About Size January 1978 Model Aviation Brad Powers experienced vision basic relationships Powers long re tired few readers knew renowned project engineer Convair participated long string re markable aircraft Somewhat like Page compressed universe rare 128 Model Aviation
Edition: Model Aviation - 1983/10
Page Numbers: 12, 14, 16, 18, 97, 128
S Cvnwsflrsfl Emergency landings thoughts Giant modelsinsurance operations Sailplane winch safety precautions Electric props bite too John Preston BY THE TIME get around read ing column Summer 83 will about over However Im hastening finish get mail before leaving long Fourth July weekend beach know hot humid summers Washington DC area can will appreciate much Im looking forward chance get away used time such weather didnt bother Id willitigly stand field 900F higher temperatures sweat buckets over latest RC creation Somehow doesnt hold much fascination anymoremust getting old Anyway months offerings first comes Lee Tay lor originally written local clubs newsletter Lee will well aware founder IMAA point making following article applies pilots RC modelsnot just Giant Scalers Overesting exciting lifting Macho Leeimage yourself sure hard airPlanes pocketbooks Emergency Procedure Lee Taylor know guys model flying kind weird hobby guess much like hobby have old-timers actual experts self-appointed ex perts beginners Probably strongest things about hobby though virtually subject can get several different opinions about handle specific situation Personally have overriding concern anything Im chicken will just about anything can done model like approach very care fully easily stages impor tant whenever sense anything might wrong want model ground like now No hesitation no Humm wonder what was' No 'Lets check out little further' L-A-N-D NOW have very simple philosophy about kind situation whole lot safer check out potential problem ground try find out what problem air Delaying landing experiencing problems may interWhat has brought little tirade instance happened couple weekends ago flying favorite little Spitfire having ball usual Fullbore 450-dive strafing passes low inverted passes nice smooth big scalelike loops rolls etc noticed retrim nose-up slightly Humm bird never changed trim before Oh well no big deal minute later again little extra nose-up trim needed Wonder what causing think myself Fuel burn No havent up long Oil tail exhaust Pushrods stretching heat Maybe servo drifting Models still flying fine no prob lems Nothing really worry ab HEY IDIOT RULE ONE Power yanked off immediate landing no problems couple guys walked over asked hurried landingI never fly short time Dont really khow guys just started picking up little downelevator-trim drift make long juicy story slightly shorter didnt take long find out having trim drift ele vator hinge left completely installed Continued page 14 12 Model Aviation Ij -I 2 Hm-rv-n' THAT COIALV MEANTOI4BLE-I Ir ETTER 3lNer E iN V An accident just about happen Dale Black set launch electric-powered F3E model gust wind caught look wing skewed fuselage Dale f lies Sailpianes lotmust have forgotten stant prop nose reached up steady plane left hand CHOMP-CHOMP Fly LEADERS ! DU-BRO WORLDS LEADER/~ MODEL PRODUCTS. -L-AIRE II No 235 Ig5 THE FINAL FILTER ultimate in-line filter twice much fuel filtering capacity No182$175 TANK FILTER Combination weighl tiller designed tit clunk Md gm No 6S 5 KWIK-GLO 010 Plug Connector piece brass barrel snaps onto plug postve start 24 2 w th batt lugslB U yo Na 147S225 Backpressure noise level can varied adjusting muffling spring out fits engine 09 80 Spring Steel AXLE SHAFTS No246 1/txl/8dia No 247 11/Ax5/32dla 8 2x5/32dla No 249 2 x 3/16 dla Pkg 2 $200 KWIK-FILL FUEL PUMPS iiL COMPLETE FUELING SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTERSMOOTH INFLATABLES TAN) OPiRATiDA PUMP) IT AND 0. VGAGALLON QUART Qfl PINTNaDiameter Per pair FITS ON VOLUME SIZE CANS I 40CR 4' $875 PLOP INo 191 010 Fuel45CR4/z$1095 ShillSFeatures two piece bolt to50CR5$1315 No 250 Gas/dieselgether hubs hub caps Re55CR5Iz$1535 Si 195markably realistic looking60CR6$1755 ocket Bolt orR1IA$300 Head NoDiaPer pair BALL WRENCH SET T200TarR2$325 225TRorS2Io$350 Fts 440 632 head SMOOTH SLICKS TREAD 250 TRarS 2/U $375 Ibolts Leads cap aluminum finish wheel hubs 275 T R S 2IA $400 Iscrew bead trom angleThese low bounce shock absorbing300 T R $3$425 INo 132 bladeswheels feature nylon metalic325 Tar R 31/A' $450 $525finish Pairs matched balance350 Tar R3Vo $475 BRASS PLATED DURA-COLLARSCat Na 137 NICKEL PLATED SOLDER LINKSEnough stock threads will not138 strip can re-worked br many139 other uses Sets include Allen Wrench140 141 3/16 [v32][b-2-10-1-10]]Ava table sets 4$80 per set Nickel plated links will corrode make attractive easy solderHeavy duty connector tor servo control hornVflCat No 243 7/32 Cat Na 112 2 link guards S59244 $100 2 per set k4j4I No Size W 8-32 NYLON FLAT & SPLIT WASHERS 309 2-56 x 10 SOCKET HEAD 310 2-56 x h 8 INSERT LOCKNoSize 3112-56 x tA6321No2 FLAT CAP SCREWSNUTS322Na2 SPLIT 3124-40 x 1101323No4 FLAT 81-i 313A-40 x 1/15~324No 4 SPLIT 315 632x10325No6 FLAT P 3156-32X 1I8326No6 SPLIT 3176-32x 1Is61No 3292OPerPkg327Na8 FLAT P 3188-32x 18lOPer Package 328NO8 SPLIT 1 1/N6 $100 per packagePh 41$100 IIhIIIIiIi II C S 14 Model Aviation pulled completely Out next lost its hinge pin third loose far outboard hinge still intact Thirty seconds longer probably wouldnt have plane Cause prob ably picked up little elevator flutter terminal full-power dives Didnt see though just noticed little trim change Second story Jack Strickland up demonstrating new Contempo Cap 21 us letting us fly flying never landed next Roger Grotheer done sever-1 times noticed little sloppines developing controls threw th transmitter Roger screamed Land NOW batterys going dead Roger yanked off power spun around lost control three ft high flare got back just time straighten out bouncedown got down safely plane rolled stop close by time walked over control would move Third story Giant Scale Fly-in Nosen Cessna 310 being flown its owner noted fliers engine failed No problem guys can handle 'Ill fly baby hang buddy plane staggered around field three tines low altitude plenty room land virtually direction Hero Pilot wasnt going anything fly bird land feet cheers crowd Instead poor plane finally gave up snap rolled disintegrated pile splinters Fourth story focal field test pilot flying new plane beginner Scale builder plane Cub Midway through flight wing strut came loose seen dangling Jim dont know put wing struts shouts intrepid test pilot roblem though just little extra dihedral wing tubes holding fine shouts little laugh Two minutes later wing folded level flight fifth final story concerns Jim Fol lines magnificent Giant Scale PT-19 self flying Seven minutes flight attempted loop couldnt get enough up elevator pull over 'Battery' screamed myself Yank off power try get down instantly Too high too fast safe downwind landing Up half power try make pattern onto upwind normal landing Halfway down downwind leg lost motor control en gine half power power-on landingget down' Roll onto base diving runway roll onto final speed pretty high doesnt want come out turn onto final Regain momentary aileron long enough get level might make it' Halfway down glide path half power battery died completely plane arced over hit almost vertically needed another fifteen seconds point guys is Very seldom will Continued page 16 MINIATURE TOO LS Fresh brand name merchandise shipped directly doorATSA VINGS UP TO 40% SPECIAL LETS GET ACQUAINTED OFFER use miniature tools youll find outstanding values like ourMICROFLAME BRAZING IHhI\ new MICROMARK catalog Over 400~LDERINGKIT tools accessories hard toItem #17101 AV UJ find Save time save money shop one-RegularPrice52995 stop M ICROMARKMICROMARK SALE PRICE 51995 Mail NORISK coupon TODAYplus $200 insured delivery TOTAL 5 DREMEL DELUXE VARIABLE ________-SPEED MOTOTOOL KIT -With 40 accessories Item #38271AV Regular Price 9495 MICROMARK SALE PRICE 55995 plus 5400 insured delivery TOTAL 5 JEWELER S HAND VISE CARBON STEELiiIIii1 Made p0 shed steeItem #21102 AV DRILL BIT SET11111k iLF1ReularPrce $1195 iwSALE PRICE 5695 20 micro-sized drill bitsJLT~plus 70 nsured del very TOTAL57 55 Item #26110AvI Regular Price 51995I plus 5150 insured delivery TOTAL 5 MICRO4IARK SALE PRICE 51495 SAVE TIME ORDER TOLL-FREE 1-800-225-1066 credit card 24 hours 7 days weekl NJ call 201-464-6764 mm m ORDER COUPONm MICRDUARK 5112 AV e 24 East Main Street Clinton NJ 08809U please sand items indicated below WyItem #Price EcTotalTotal enclosed 5 check money order payable MICRO4ARK sorry no coosI charge er card []viseI iiI I5iunatureU HNAMEI Iabsolutely tree big new MICROaIAISK TOOL CATALOGI wish order Im Ordenog now yoar TOOL CATALOGADDRESS Itsr 51 postpaid NJresidents add appropriate sales tanCITYSTATEZIP U NORISACIJSTOMER6UARANTEE Yos nuns 100% delighted retom order within 14 days toralull retand purchase Deco 1mm mm mm mmm mmmm m o MIcRO-MARK 1983 mmmmmmm mmmm mm1 plane fail catastrophically least some warning first little bobble glitch failure notice WARN ING pay attention warning did battery Stricklands airplane time slight trim change Spitfire second time LAND IMMEDIATELY check out prob lem might have plane fly next weekend try macho out ig nore delay just little bit tightening noose around own neck first little bobble glitch failure click hammer gun being pulled back DUCK arent too people fast enough duck hear click trigger being pulled times wait second click DEAD DUCKS letter accompanied article Lee included some comments weight limit Giant Scale models Over Lee again As founder IMAA owner pilot three planes over 55-lb AMA weight limit can state very strongly vast majority Giant Scale model ers strongly support AMA standards size now stand AMA standards extremely fair very deepy appreci ated us heavily involved Giant Scale think AMA leadership has kind stuck necks out support Giant Scale activity especially since movement start has avoided AMA affiliation anti-AMA sentiment just could avoid political hassles us occasionally fly planes larger 55 lb should carry own private insurance no way standard modeling should have stick necks out accept responsibility excep tionally oversize extremely rare models person wants build models size fly should responsible enough get primary insurance isnt responsible has no business being hobby begin Lees thoughts about builders models weighing over 55 Ib carrying own surance may well provoke some correspond ence make sense Although havent investigated cost individual insurance heavy models would venture say would small portion total cost such undertaking Mean issue whether increase AMA weight limit models remains un resolved continues draw corre spondence recent letter AMA Execu tive Director John Worth contained some interesting recommendations has forwarded members AMA Safety Committee consideration ythe risk filling mailbox letters irate aficionados big models recommendations can paraphrased fol lows 1 For Models Excess 20 lb Gross Weight Continued page 18 16 Model Aviafion Wingspan 56 Channels 2 -3 Wing Area 690 sq Engine 19 35 opper complete 1/6 scale R/C model kit designed assemblelook fly like famous WeedhopperTM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE IL 61473 PHONE 309/426-2161 BIGE Now Available QUADRAS TOO Thats right BIG E now available both EVRA QUADRA engines theres BIG E PERFORMS flys like dream. its fully aerobatic realistic speeds ONLY $224~ plus $1000 shipping handling US Specify EVRA QUADRA engine order VISA MC Accepted Specifications Wingspan84 Length70 Weight14-1/2lbsreadytotly AirtoiiSymmetrical PowerEVRA QUAPPA engines aerobatics sunday flying BIG E fantastic takes off lands performs like champion Building easyl carefully thought out partially prebuilt kit offers features Easy build.20 hours box sanding hardwood plywood precut size Fuselage sides preformed full length stringers vertical braces glued place Firewall predrilled EVPA QUADRA engines Please specify Unique wing attachment makes alignment installation super easy Great ground handling BIG E extra long fuselage landing gear location Precovered hard cover foam wing turtle deck Flys full pattern power spare Includes hardware EVRA OwflerSParts EVRAengine Update NOW Available Motor Mount Engine Modirlcntions IncludeLord Mounts $1900 increased power Easy hand-starting Twin Stack Muffler turns 18-8 prop 7200 RPM Full-circle ring conversion $2495 Balanced reduced vibration improved timing Baianced crank flywheel optimized reed vaive Rual Hub $1495 Lord Mounts $150 ea ONLY $4500 vw Send check or8631 F Laredo Ln ScoTtsdale money order toE & L ManufacturingArizona 85253 41-0633A World War / isnt Quite Over Yet EINDECKER E-III Please add $2 postageihandling N Y residents add 7 % $3495Balsa & Plywood Construction T6 55 Wingspan / 35 45 Engines 01 Wng 2 e4Cu n Engines GIANT RIC SCALE Morane SAULNIER N * Beau u yMededFbegass Fuselage1 SOSSq AaaB U riewnOduc 000 SOloc avo es * Detail-Melded Transparent Canopyhe rugged cOnsiructius lit 01 tie die-cut pails Both have * Rugged Fiberglss Molded Engine Cnwliegcorspiete itt $27500a histOry 01 contest csiris Easy 10 huiid superb slight * V Plywsud Firewall Hardware includedpius 510 00 ship0 og & haridiirgPlease add $2 postagelhandling * Farmed dia Lsedieg Gesr Legs ny excess ntundedi * Relied Plans ond InstrunlloasvP resiverri add p3-4 Channel RIC Systems$3795 GD-. . a Must have two separate RC guidance systems event fail ure must capable controlling major flight control surfaces powerplant provided no less 50% efficiency b Have additional device arrest powerplant via two RC systems c Before being flown AMA-sanctioned events activities must have flown isolated region away public popu lated area minimum 10 hours included least 20 takeoffs landings witnessed two other AMA members d The two witnesses must present whenever model flown AMAsanctioned events activities e The RC systems control flight controls powerplant elec trical supply sources must replaced after 12-month period 2 For Models Excess 40 lb Gross Weight a Must flown according condi tions stated items through e b Must undergo same step-by-step inspection during construction re quired man-carrying homebuilt aircraft flight-tested airworthiness experienced person has no less 500 hours piloting models experience during past two years also holds valid FAA pilots license full-scale air craft Perhaps recommendations appear extreme measures bear mind contain recommended model weight limit Which better reasonable weight limit some stringent rules cater minority seem constantly strive builder flier worlds biggest model airplane dont know weight /2-scale Pitts S-iS displayed Toledo year its 18-hp Limbach engine swings 36-12 prop puts different category models expect see flown local clubs flying field Perhaps race biggest block will stop Federal Government FAA notices such flying machines still call models Are willing let intercede settling issue maxi mum model weight safe operating pro cedures Id rather have happen about Moving right along havent mentioned Sailplanes seems like last time motorless models subject column regard being flown over houses people somewhere West Coast District X VP Jim Scarborough sent some newspaper clippings told tale An other communication Jim enclosed page newsletter Santa Clarita Soaring Association editors Hank Schorz Ron Lindgren article Winch Safety Bob Owens Continued page 97 18 Model Aviation Safety/Preston Continued page 18 Sailplane enthusiast take heed following Recently club members suf fered significant injury hand winch line attempting untangle backlash winches club contest spectator strolled over observe inadvertently stepped winchs pedal switch Suddenly fellow working line hand entangled line winch started up full 12 volts motor stalled out hand jammed reel Blood spattered three fingers cut badly bruised finger diagnosed brokenit wouldnt move accident over almost before began except injured hand Lets take closer look accident deter repeat can prevented future 1 winchs power should have switched off its battery disconnected fore attempting untangle line 2 pedal switch happened small black three-in-square unit almost invisible unmowed lawn No wonder spectator didnt see pedals should mounted larger base painted bright color make conspicuous 3 Spectator control has very lax flying sites Safety everyones job Spectators should kept away flight line also away winchline turnaround recommend member closest offender kindly explain po tential danger winches ask him stand back away flightline Although involved accident also hazards pulling winch lines Keep clear lines walking downfield returning No pilot should launch until retrievers clear lines aware model about launched will preclude retriever inadvertently walking moving line obvious potential danger retriever pulling line anyone steps pedal switch natu ral walk winch line para chute draped over shoulder Just imagine line cutting shoulder ing slapped face eyes para chute ring Always hold line such manner winch starts up line chute will drag across part body accident too Lets make pedal switches obvious exercise extreme care around win ches keep spectators out danger dont think need add anything Bobs recommendations regarding safety around winches other say despite majesty silence Sailplanes can hazardous too Continued page 128 New 1AA Quickie 200 Torque absorp tion nose struc ture Americas fastest 1AA Quickie 200 $2695 Dave Latshas T-Tailed Rivets Custom glass fuse Complete kit wheels News Flash Ri vets wins Tangerine Int See local dealer order directMd residents add 5% tax PLANE MODELS 2868 Hambleton Rd Riva MD 21140 K U OSTATIC DISPLAYS 20 Categories 0 DEMONSTRATIONS eODELTADARTCONTEST SWAP SHOP 11th ANNUAL GREATER CHICAGO RADIO CONTROLLED MODEL SHOW I U U U U U U o NEW PRODUCT October 1983 97 #J#Ji gned Quickie 500 racing sport flying Kit features hand cut balsa ply s Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Maryland races four years other Quickie 500 racers combined o CARS BOATS & AIRPLANES l6th M L Oil pO 4ort0OX22i IL 60053 FASTEN YOUR SEA TBELTS! .ATTYOU CROSS THE THRESHOLD TO THE BLUE ANGELS EX PERIENCE YOU CAN NOW THRILL TO THE REAL LIFE ADVENTURE WITH SIX DARING MEN AND THEIR FLYING MACHINES SIT IN FRONT ROW COCKPIT AND SENSE THE EMOTIONS AND EXTREME CONCEN TRATION AS YOUR DOUGLAS F-4J PHANTOM GOES THROUGH ITS PACES WITH 32000 POUNDS OF THRUST TO TOP SPEED OF 1600 MPH! FULL COLOR VIDEO WITH NAR RATION AND ACTUAL SOUNDS MUSIC BY FRED MYROW 1/2 VHS D V2 Beta 1 El 1/2 Beta2 El 46 mm VIDEO $6500 K 89 min$8500 El Shipping $250 ea lilust Info Pkg $200 El refundable purchase VISA El MASTERCHARGE El Number_________ date_______ N moo _________StateZip AUDIO VISUALS INTERNATIONAL PO BOX 1390 WOODLAND WASHINGTON 98674 Nick Zirolis F4U CORSAIR 2 Cu size Engines Fibergiass Fuse age & Cowlieg aua able fur lee O5SiQC GIANT RIC SCALE PLAN DESIGNS AT6 TEXAN24 I101Span52700ppUSA POKKER DR27163Tripe$2000ppUSA PAP REARCAT2 186Span$2700ppUSA CURTISS P402 194Span$2700ppUSA FAU CORSAIR2Y 193Span$2700ppUSA Fiberglass Cowliegs & Canopies available ase Send sramp aelaileg urusnures Giaer Scale Accessurius Oar Fans seer Fusfpaid arilbin UgAl last item leave also con cerns Sailpianes sort came form short note photograph Dale Willoughby will know has vast collection documentation photographs Scale modelers available Scale Model Research Orange CA As can seen accompanying photograph subject Dales story electric-powered Sailplane-like model being launched recent US/International F3E Challenge com petition photo taken moment wind gust caused model twist launcher Dale Blacks hand Dale member Harbor Soaring Society long-time RC Sailplane Ilier momentarily forgot model whirling prop its nose quick grab straighten twisting model resulted some nasty cuts left hand Moral Dont grab business end F3E Have safe month John Preston 7012 Elvira Cr Falls Church VA 22042 Fun/Winter Continued page 28 lems inadequately-sized vertical tail area old designs Author case full-scale old-timers am great believer sticking orig inal scale size compensating providing thicker effective sec tion Most modelers completely ignore aerodynamics come tail cut out sheet material cause comparatively small size tail surfaces models need especial attention section used sug gestion square trailing edge good Author talking model aile rons flutterpointed control sur face edges probablyand Joe Bridis constant-thickness ailerons trainers Author I half-buy However smaller model tougher stick scale tail areas time get 1/5-scale larger ability hold hold scale size penal ty becomes increasingly greater de part scale airfoils resort freely flat-bottomed ones Especially thick have serious CP travel increasing angles attack thus require larger tail area symmetrical semi-symmetri cal some other scale section used first case because mon keying around might need 30% stab latter less 20% 15% less ship least 4/2 5 ft span long fuselage arm 10% would feasible some cases talk full-scale powerplane experience glider experience scanty have noted RC models sectioned stabs streamlined double-triangles end-to-end ribs fly better sheet-tailed crates dont have foggiest reason respected pilots say true Bentson Perhaps best argument upward-rigged ailerons comes modern sailplanes camber-changing flaps ailerons arranged move up down flaps Although would preferable take off aerotow flaps slightly down common practice take off least initiate takeoff run flaps up cause better aileron control obtained less likelihood wing tip touching ground case aile ron drag factor because tow attachment nose Humor guys because game plan column has gone up smoke Old-timer modelers Indoors Sailplanes FF Power etc have dozens years hands-on experience better Rubber Scalersand Wakefielders Nordic guys think Tweakers Breathers fine tuning crates seems stream consciousness us books articles aerodynamics appear written folks weve never met greater man able communicate matters far beyond us simple understandable wayand truths revealed witnessed TV worlds greatest musicians con duct Masters Classescelloist Casals exampleyou mesmerized ability true geniuses touch gestures simple words humblest student dare say Ein stein field Dr Lippisch could convey over coffee glimpse im ponderables unattainable lifetime reading Having nothing prove great teachers dont blow us away avalanches math gobbledygook contrived impress peers close loopholes criticism other elitists talking During early 1930s once sat up night reading small book aero dynamics explained airplane flew basics stability factors propeller design designer went about buildingblock process based rudimentary things probably way people like Bellanca Fokker etc wrought magic simple book seemed like Christmas Future So humble author George Page greatest designers age man produced miracles Curtiss years before war Youll never see book like again alas read About Size January 1978 Model Aviation Brad Powers experienced vision basic relationships Powers long re tired few readers knew renowned project engineer Convair participated long string re markable aircraft Somewhat like Page compressed universe rare 128 Model Aviation
Edition: Model Aviation - 1983/10
Page Numbers: 12, 14, 16, 18, 97, 128
S Cvnwsflrsfl Emergency landings thoughts Giant modelsinsurance operations Sailplane winch safety precautions Electric props bite too John Preston BY THE TIME get around read ing column Summer 83 will about over However Im hastening finish get mail before leaving long Fourth July weekend beach know hot humid summers Washington DC area can will appreciate much Im looking forward chance get away used time such weather didnt bother Id willitigly stand field 900F higher temperatures sweat buckets over latest RC creation Somehow doesnt hold much fascination anymoremust getting old Anyway months offerings first comes Lee Tay lor originally written local clubs newsletter Lee will well aware founder IMAA point making following article applies pilots RC modelsnot just Giant Scalers Overesting exciting lifting Macho Leeimage yourself sure hard airPlanes pocketbooks Emergency Procedure Lee Taylor know guys model flying kind weird hobby guess much like hobby have old-timers actual experts self-appointed ex perts beginners Probably strongest things about hobby though virtually subject can get several different opinions about handle specific situation Personally have overriding concern anything Im chicken will just about anything can done model like approach very care fully easily stages impor tant whenever sense anything might wrong want model ground like now No hesitation no Humm wonder what was' No 'Lets check out little further' L-A-N-D NOW have very simple philosophy about kind situation whole lot safer check out potential problem ground try find out what problem air Delaying landing experiencing problems may interWhat has brought little tirade instance happened couple weekends ago flying favorite little Spitfire having ball usual Fullbore 450-dive strafing passes low inverted passes nice smooth big scalelike loops rolls etc noticed retrim nose-up slightly Humm bird never changed trim before Oh well no big deal minute later again little extra nose-up trim needed Wonder what causing think myself Fuel burn No havent up long Oil tail exhaust Pushrods stretching heat Maybe servo drifting Models still flying fine no prob lems Nothing really worry ab HEY IDIOT RULE ONE Power yanked off immediate landing no problems couple guys walked over asked hurried landingI never fly short time Dont really khow guys just started picking up little downelevator-trim drift make long juicy story slightly shorter didnt take long find out having trim drift ele vator hinge left completely installed Continued page 14 12 Model Aviation Ij -I 2 Hm-rv-n' THAT COIALV MEANTOI4BLE-I Ir ETTER 3lNer E iN V An accident just about happen Dale Black set launch electric-powered F3E model gust wind caught look wing skewed fuselage Dale f lies Sailpianes lotmust have forgotten stant prop nose reached up steady plane left hand CHOMP-CHOMP Fly LEADERS ! DU-BRO WORLDS LEADER/~ MODEL PRODUCTS. -L-AIRE II No 235 Ig5 THE FINAL FILTER ultimate in-line filter twice much fuel filtering capacity No182$175 TANK FILTER Combination weighl tiller designed tit clunk Md gm No 6S 5 KWIK-GLO 010 Plug Connector piece brass barrel snaps onto plug postve start 24 2 w th batt lugslB U yo Na 147S225 Backpressure noise level can varied adjusting muffling spring out fits engine 09 80 Spring Steel AXLE SHAFTS No246 1/txl/8dia No 247 11/Ax5/32dla 8 2x5/32dla No 249 2 x 3/16 dla Pkg 2 $200 KWIK-FILL FUEL PUMPS iiL COMPLETE FUELING SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTERSMOOTH INFLATABLES TAN) OPiRATiDA PUMP) IT AND 0. VGAGALLON QUART Qfl PINTNaDiameter Per pair FITS ON VOLUME SIZE CANS I 40CR 4' $875 PLOP INo 191 010 Fuel45CR4/z$1095 ShillSFeatures two piece bolt to50CR5$1315 No 250 Gas/dieselgether hubs hub caps Re55CR5Iz$1535 Si 195markably realistic looking60CR6$1755 ocket Bolt orR1IA$300 Head NoDiaPer pair BALL WRENCH SET T200TarR2$325 225TRorS2Io$350 Fts 440 632 head SMOOTH SLICKS TREAD 250 TRarS 2/U $375 Ibolts Leads cap aluminum finish wheel hubs 275 T R S 2IA $400 Iscrew bead trom angleThese low bounce shock absorbing300 T R $3$425 INo 132 bladeswheels feature nylon metalic325 Tar R 31/A' $450 $525finish Pairs matched balance350 Tar R3Vo $475 BRASS PLATED DURA-COLLARSCat Na 137 NICKEL PLATED SOLDER LINKSEnough stock threads will not138 strip can re-worked br many139 other uses Sets include Allen Wrench140 141 3/16 [v32][b-2-10-1-10]]Ava table sets 4$80 per set Nickel plated links will corrode make attractive easy solderHeavy duty connector tor servo control hornVflCat No 243 7/32 Cat Na 112 2 link guards S59244 $100 2 per set k4j4I No Size W 8-32 NYLON FLAT & SPLIT WASHERS 309 2-56 x 10 SOCKET HEAD 310 2-56 x h 8 INSERT LOCKNoSize 3112-56 x tA6321No2 FLAT CAP SCREWSNUTS322Na2 SPLIT 3124-40 x 1101323No4 FLAT 81-i 313A-40 x 1/15~324No 4 SPLIT 315 632x10325No6 FLAT P 3156-32X 1I8326No6 SPLIT 3176-32x 1Is61No 3292OPerPkg327Na8 FLAT P 3188-32x 18lOPer Package 328NO8 SPLIT 1 1/N6 $100 per packagePh 41$100 IIhIIIIiIi II C S 14 Model Aviation pulled completely Out next lost its hinge pin third loose far outboard hinge still intact Thirty seconds longer probably wouldnt have plane Cause prob ably picked up little elevator flutter terminal full-power dives Didnt see though just noticed little trim change Second story Jack Strickland up demonstrating new Contempo Cap 21 us letting us fly flying never landed next Roger Grotheer done sever-1 times noticed little sloppines developing controls threw th transmitter Roger screamed Land NOW batterys going dead Roger yanked off power spun around lost control three ft high flare got back just time straighten out bouncedown got down safely plane rolled stop close by time walked over control would move Third story Giant Scale Fly-in Nosen Cessna 310 being flown its owner noted fliers engine failed No problem guys can handle 'Ill fly baby hang buddy plane staggered around field three tines low altitude plenty room land virtually direction Hero Pilot wasnt going anything fly bird land feet cheers crowd Instead poor plane finally gave up snap rolled disintegrated pile splinters Fourth story focal field test pilot flying new plane beginner Scale builder plane Cub Midway through flight wing strut came loose seen dangling Jim dont know put wing struts shouts intrepid test pilot roblem though just little extra dihedral wing tubes holding fine shouts little laugh Two minutes later wing folded level flight fifth final story concerns Jim Fol lines magnificent Giant Scale PT-19 self flying Seven minutes flight attempted loop couldnt get enough up elevator pull over 'Battery' screamed myself Yank off power try get down instantly Too high too fast safe downwind landing Up half power try make pattern onto upwind normal landing Halfway down downwind leg lost motor control en gine half power power-on landingget down' Roll onto base diving runway roll onto final speed pretty high doesnt want come out turn onto final Regain momentary aileron long enough get level might make it' Halfway down glide path half power battery died completely plane arced over hit almost vertically needed another fifteen seconds point guys is Very seldom will Continued page 16 MINIATURE TOO LS Fresh brand name merchandise shipped directly doorATSA VINGS UP TO 40% SPECIAL LETS GET ACQUAINTED OFFER use miniature tools youll find outstanding values like ourMICROFLAME BRAZING IHhI\ new MICROMARK catalog Over 400~LDERINGKIT tools accessories hard toItem #17101 AV UJ find Save time save money shop one-RegularPrice52995 stop M ICROMARKMICROMARK SALE PRICE 51995 Mail NORISK coupon TODAYplus $200 insured delivery TOTAL 5 DREMEL DELUXE VARIABLE ________-SPEED MOTOTOOL KIT -With 40 accessories Item #38271AV Regular Price 9495 MICROMARK SALE PRICE 55995 plus 5400 insured delivery TOTAL 5 JEWELER S HAND VISE CARBON STEELiiIIii1 Made p0 shed steeItem #21102 AV DRILL BIT SET11111k iLF1ReularPrce $1195 iwSALE PRICE 5695 20 micro-sized drill bitsJLT~plus 70 nsured del very TOTAL57 55 Item #26110AvI Regular Price 51995I plus 5150 insured delivery TOTAL 5 MICRO4IARK SALE PRICE 51495 SAVE TIME ORDER TOLL-FREE 1-800-225-1066 credit card 24 hours 7 days weekl NJ call 201-464-6764 mm m ORDER COUPONm MICRDUARK 5112 AV e 24 East Main Street Clinton NJ 08809U please sand items indicated below WyItem #Price EcTotalTotal enclosed 5 check money order payable MICRO4ARK sorry no coosI charge er card []viseI iiI I5iunatureU HNAMEI Iabsolutely tree big new MICROaIAISK TOOL CATALOGI wish order Im Ordenog now yoar TOOL CATALOGADDRESS Itsr 51 postpaid NJresidents add appropriate sales tanCITYSTATEZIP U NORISACIJSTOMER6UARANTEE Yos nuns 100% delighted retom order within 14 days toralull retand purchase Deco 1mm mm mm mmm mmmm m o MIcRO-MARK 1983 mmmmmmm mmmm mm1 plane fail catastrophically least some warning first little bobble glitch failure notice WARN ING pay attention warning did battery Stricklands airplane time slight trim change Spitfire second time LAND IMMEDIATELY check out prob lem might have plane fly next weekend try macho out ig nore delay just little bit tightening noose around own neck first little bobble glitch failure click hammer gun being pulled back DUCK arent too people fast enough duck hear click trigger being pulled times wait second click DEAD DUCKS letter accompanied article Lee included some comments weight limit Giant Scale models Over Lee again As founder IMAA owner pilot three planes over 55-lb AMA weight limit can state very strongly vast majority Giant Scale model ers strongly support AMA standards size now stand AMA standards extremely fair very deepy appreci ated us heavily involved Giant Scale think AMA leadership has kind stuck necks out support Giant Scale activity especially since movement start has avoided AMA affiliation anti-AMA sentiment just could avoid political hassles us occasionally fly planes larger 55 lb should carry own private insurance no way standard modeling should have stick necks out accept responsibility excep tionally oversize extremely rare models person wants build models size fly should responsible enough get primary insurance isnt responsible has no business being hobby begin Lees thoughts about builders models weighing over 55 Ib carrying own surance may well provoke some correspond ence make sense Although havent investigated cost individual insurance heavy models would venture say would small portion total cost such undertaking Mean issue whether increase AMA weight limit models remains un resolved continues draw corre spondence recent letter AMA Execu tive Director John Worth contained some interesting recommendations has forwarded members AMA Safety Committee consideration ythe risk filling mailbox letters irate aficionados big models recommendations can paraphrased fol lows 1 For Models Excess 20 lb Gross Weight Continued page 18 16 Model Aviafion Wingspan 56 Channels 2 -3 Wing Area 690 sq Engine 19 35 opper complete 1/6 scale R/C model kit designed assemblelook fly like famous WeedhopperTM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE IL 61473 PHONE 309/426-2161 BIGE Now Available QUADRAS TOO Thats right BIG E now available both EVRA QUADRA engines theres BIG E PERFORMS flys like dream. its fully aerobatic realistic speeds ONLY $224~ plus $1000 shipping handling US Specify EVRA QUADRA engine order VISA MC Accepted Specifications Wingspan84 Length70 Weight14-1/2lbsreadytotly AirtoiiSymmetrical PowerEVRA QUAPPA engines aerobatics sunday flying BIG E fantastic takes off lands performs like champion Building easyl carefully thought out partially prebuilt kit offers features Easy build.20 hours box sanding hardwood plywood precut size Fuselage sides preformed full length stringers vertical braces glued place Firewall predrilled EVPA QUADRA engines Please specify Unique wing attachment makes alignment installation super easy Great ground handling BIG E extra long fuselage landing gear location Precovered hard cover foam wing turtle deck Flys full pattern power spare Includes hardware EVRA OwflerSParts EVRAengine Update NOW Available Motor Mount Engine Modirlcntions IncludeLord Mounts $1900 increased power Easy hand-starting Twin Stack Muffler turns 18-8 prop 7200 RPM Full-circle ring conversion $2495 Balanced reduced vibration improved timing Baianced crank flywheel optimized reed vaive Rual Hub $1495 Lord Mounts $150 ea ONLY $4500 vw Send check or8631 F Laredo Ln ScoTtsdale money order toE & L ManufacturingArizona 85253 41-0633A World War / isnt Quite Over Yet EINDECKER E-III Please add $2 postageihandling N Y residents add 7 % $3495Balsa & Plywood Construction T6 55 Wingspan / 35 45 Engines 01 Wng 2 e4Cu n Engines GIANT RIC SCALE Morane SAULNIER N * Beau u yMededFbegass Fuselage1 SOSSq AaaB U riewnOduc 000 SOloc avo es * Detail-Melded Transparent Canopyhe rugged cOnsiructius lit 01 tie die-cut pails Both have * Rugged Fiberglss Molded Engine Cnwliegcorspiete itt $27500a histOry 01 contest csiris Easy 10 huiid superb slight * V Plywsud Firewall Hardware includedpius 510 00 ship0 og & haridiirgPlease add $2 postagelhandling * Farmed dia Lsedieg Gesr Legs ny excess ntundedi * Relied Plans ond InstrunlloasvP resiverri add p3-4 Channel RIC Systems$3795 GD-. . a Must have two separate RC guidance systems event fail ure must capable controlling major flight control surfaces powerplant provided no less 50% efficiency b Have additional device arrest powerplant via two RC systems c Before being flown AMA-sanctioned events activities must have flown isolated region away public popu lated area minimum 10 hours included least 20 takeoffs landings witnessed two other AMA members d The two witnesses must present whenever model flown AMAsanctioned events activities e The RC systems control flight controls powerplant elec trical supply sources must replaced after 12-month period 2 For Models Excess 40 lb Gross Weight a Must flown according condi tions stated items through e b Must undergo same step-by-step inspection during construction re quired man-carrying homebuilt aircraft flight-tested airworthiness experienced person has no less 500 hours piloting models experience during past two years also holds valid FAA pilots license full-scale air craft Perhaps recommendations appear extreme measures bear mind contain recommended model weight limit Which better reasonable weight limit some stringent rules cater minority seem constantly strive builder flier worlds biggest model airplane dont know weight /2-scale Pitts S-iS displayed Toledo year its 18-hp Limbach engine swings 36-12 prop puts different category models expect see flown local clubs flying field Perhaps race biggest block will stop Federal Government FAA notices such flying machines still call models Are willing let intercede settling issue maxi mum model weight safe operating pro cedures Id rather have happen about Moving right along havent mentioned Sailplanes seems like last time motorless models subject column regard being flown over houses people somewhere West Coast District X VP Jim Scarborough sent some newspaper clippings told tale An other communication Jim enclosed page newsletter Santa Clarita Soaring Association editors Hank Schorz Ron Lindgren article Winch Safety Bob Owens Continued page 97 18 Model Aviation Safety/Preston Continued page 18 Sailplane enthusiast take heed following Recently club members suf fered significant injury hand winch line attempting untangle backlash winches club contest spectator strolled over observe inadvertently stepped winchs pedal switch Suddenly fellow working line hand entangled line winch started up full 12 volts motor stalled out hand jammed reel Blood spattered three fingers cut badly bruised finger diagnosed brokenit wouldnt move accident over almost before began except injured hand Lets take closer look accident deter repeat can prevented future 1 winchs power should have switched off its battery disconnected fore attempting untangle line 2 pedal switch happened small black three-in-square unit almost invisible unmowed lawn No wonder spectator didnt see pedals should mounted larger base painted bright color make conspicuous 3 Spectator control has very lax flying sites Safety everyones job Spectators should kept away flight line also away winchline turnaround recommend member closest offender kindly explain po tential danger winches ask him stand back away flightline Although involved accident also hazards pulling winch lines Keep clear lines walking downfield returning No pilot should launch until retrievers clear lines aware model about launched will preclude retriever inadvertently walking moving line obvious potential danger retriever pulling line anyone steps pedal switch natu ral walk winch line para chute draped over shoulder Just imagine line cutting shoulder ing slapped face eyes para chute ring Always hold line such manner winch starts up line chute will drag across part body accident too Lets make pedal switches obvious exercise extreme care around win ches keep spectators out danger dont think need add anything Bobs recommendations regarding safety around winches other say despite majesty silence Sailplanes can hazardous too Continued page 128 New 1AA Quickie 200 Torque absorp tion nose struc ture Americas fastest 1AA Quickie 200 $2695 Dave Latshas T-Tailed Rivets Custom glass fuse Complete kit wheels News Flash Ri vets wins Tangerine Int See local dealer order directMd residents add 5% tax PLANE MODELS 2868 Hambleton Rd Riva MD 21140 K U OSTATIC DISPLAYS 20 Categories 0 DEMONSTRATIONS eODELTADARTCONTEST SWAP SHOP 11th ANNUAL GREATER CHICAGO RADIO CONTROLLED MODEL SHOW I U U U U U U o NEW PRODUCT October 1983 97 #J#Ji gned Quickie 500 racing sport flying Kit features hand cut balsa ply s Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Maryland races four years other Quickie 500 racers combined o CARS BOATS & AIRPLANES l6th M L Oil pO 4ort0OX22i IL 60053 FASTEN YOUR SEA TBELTS! .ATTYOU CROSS THE THRESHOLD TO THE BLUE ANGELS EX PERIENCE YOU CAN NOW THRILL TO THE REAL LIFE ADVENTURE WITH SIX DARING MEN AND THEIR FLYING MACHINES SIT IN FRONT ROW COCKPIT AND SENSE THE EMOTIONS AND EXTREME CONCEN TRATION AS YOUR DOUGLAS F-4J PHANTOM GOES THROUGH ITS PACES WITH 32000 POUNDS OF THRUST TO TOP SPEED OF 1600 MPH! FULL COLOR VIDEO WITH NAR RATION AND ACTUAL SOUNDS MUSIC BY FRED MYROW 1/2 VHS D V2 Beta 1 El 1/2 Beta2 El 46 mm VIDEO $6500 K 89 min$8500 El Shipping $250 ea lilust Info Pkg $200 El refundable purchase VISA El MASTERCHARGE El Number_________ date_______ N moo _________StateZip AUDIO VISUALS INTERNATIONAL PO BOX 1390 WOODLAND WASHINGTON 98674 Nick Zirolis F4U CORSAIR 2 Cu size Engines Fibergiass Fuse age & Cowlieg aua able fur lee O5SiQC GIANT RIC SCALE PLAN DESIGNS AT6 TEXAN24 I101Span52700ppUSA POKKER DR27163Tripe$2000ppUSA PAP REARCAT2 186Span$2700ppUSA CURTISS P402 194Span$2700ppUSA FAU CORSAIR2Y 193Span$2700ppUSA Fiberglass Cowliegs & Canopies available ase Send sramp aelaileg urusnures Giaer Scale Accessurius Oar Fans seer Fusfpaid arilbin UgAl last item leave also con cerns Sailpianes sort came form short note photograph Dale Willoughby will know has vast collection documentation photographs Scale modelers available Scale Model Research Orange CA As can seen accompanying photograph subject Dales story electric-powered Sailplane-like model being launched recent US/International F3E Challenge com petition photo taken moment wind gust caused model twist launcher Dale Blacks hand Dale member Harbor Soaring Society long-time RC Sailplane Ilier momentarily forgot model whirling prop its nose quick grab straighten twisting model resulted some nasty cuts left hand Moral Dont grab business end F3E Have safe month John Preston 7012 Elvira Cr Falls Church VA 22042 Fun/Winter Continued page 28 lems inadequately-sized vertical tail area old designs Author case full-scale old-timers am great believer sticking orig inal scale size compensating providing thicker effective sec tion Most modelers completely ignore aerodynamics come tail cut out sheet material cause comparatively small size tail surfaces models need especial attention section used sug gestion square trailing edge good Author talking model aile rons flutterpointed control sur face edges probablyand Joe Bridis constant-thickness ailerons trainers Author I half-buy However smaller model tougher stick scale tail areas time get 1/5-scale larger ability hold hold scale size penal ty becomes increasingly greater de part scale airfoils resort freely flat-bottomed ones Especially thick have serious CP travel increasing angles attack thus require larger tail area symmetrical semi-symmetri cal some other scale section used first case because mon keying around might need 30% stab latter less 20% 15% less ship least 4/2 5 ft span long fuselage arm 10% would feasible some cases talk full-scale powerplane experience glider experience scanty have noted RC models sectioned stabs streamlined double-triangles end-to-end ribs fly better sheet-tailed crates dont have foggiest reason respected pilots say true Bentson Perhaps best argument upward-rigged ailerons comes modern sailplanes camber-changing flaps ailerons arranged move up down flaps Although would preferable take off aerotow flaps slightly down common practice take off least initiate takeoff run flaps up cause better aileron control obtained less likelihood wing tip touching ground case aile ron drag factor because tow attachment nose Humor guys because game plan column has gone up smoke Old-timer modelers Indoors Sailplanes FF Power etc have dozens years hands-on experience better Rubber Scalersand Wakefielders Nordic guys think Tweakers Breathers fine tuning crates seems stream consciousness us books articles aerodynamics appear written folks weve never met greater man able communicate matters far beyond us simple understandable wayand truths revealed witnessed TV worlds greatest musicians con duct Masters Classescelloist Casals exampleyou mesmerized ability true geniuses touch gestures simple words humblest student dare say Ein stein field Dr Lippisch could convey over coffee glimpse im ponderables unattainable lifetime reading Having nothing prove great teachers dont blow us away avalanches math gobbledygook contrived impress peers close loopholes criticism other elitists talking During early 1930s once sat up night reading small book aero dynamics explained airplane flew basics stability factors propeller design designer went about buildingblock process based rudimentary things probably way people like Bellanca Fokker etc wrought magic simple book seemed like Christmas Future So humble author George Page greatest designers age man produced miracles Curtiss years before war Youll never see book like again alas read About Size January 1978 Model Aviation Brad Powers experienced vision basic relationships Powers long re tired few readers knew renowned project engineer Convair participated long string re markable aircraft Somewhat like Page compressed universe rare 128 Model Aviation
Edition: Model Aviation - 1983/10
Page Numbers: 12, 14, 16, 18, 97, 128
S Cvnwsflrsfl Emergency landings thoughts Giant modelsinsurance operations Sailplane winch safety precautions Electric props bite too John Preston BY THE TIME get around read ing column Summer 83 will about over However Im hastening finish get mail before leaving long Fourth July weekend beach know hot humid summers Washington DC area can will appreciate much Im looking forward chance get away used time such weather didnt bother Id willitigly stand field 900F higher temperatures sweat buckets over latest RC creation Somehow doesnt hold much fascination anymoremust getting old Anyway months offerings first comes Lee Tay lor originally written local clubs newsletter Lee will well aware founder IMAA point making following article applies pilots RC modelsnot just Giant Scalers Overesting exciting lifting Macho Leeimage yourself sure hard airPlanes pocketbooks Emergency Procedure Lee Taylor know guys model flying kind weird hobby guess much like hobby have old-timers actual experts self-appointed ex perts beginners Probably strongest things about hobby though virtually subject can get several different opinions about handle specific situation Personally have overriding concern anything Im chicken will just about anything can done model like approach very care fully easily stages impor tant whenever sense anything might wrong want model ground like now No hesitation no Humm wonder what was' No 'Lets check out little further' L-A-N-D NOW have very simple philosophy about kind situation whole lot safer check out potential problem ground try find out what problem air Delaying landing experiencing problems may interWhat has brought little tirade instance happened couple weekends ago flying favorite little Spitfire having ball usual Fullbore 450-dive strafing passes low inverted passes nice smooth big scalelike loops rolls etc noticed retrim nose-up slightly Humm bird never changed trim before Oh well no big deal minute later again little extra nose-up trim needed Wonder what causing think myself Fuel burn No havent up long Oil tail exhaust Pushrods stretching heat Maybe servo drifting Models still flying fine no prob lems Nothing really worry ab HEY IDIOT RULE ONE Power yanked off immediate landing no problems couple guys walked over asked hurried landingI never fly short time Dont really khow guys just started picking up little downelevator-trim drift make long juicy story slightly shorter didnt take long find out having trim drift ele vator hinge left completely installed Continued page 14 12 Model Aviation Ij -I 2 Hm-rv-n' THAT COIALV MEANTOI4BLE-I Ir ETTER 3lNer E iN V An accident just about happen Dale Black set launch electric-powered F3E model gust wind caught look wing skewed fuselage Dale f lies Sailpianes lotmust have forgotten stant prop nose reached up steady plane left hand CHOMP-CHOMP Fly LEADERS ! DU-BRO WORLDS LEADER/~ MODEL PRODUCTS. -L-AIRE II No 235 Ig5 THE FINAL FILTER ultimate in-line filter twice much fuel filtering capacity No182$175 TANK FILTER Combination weighl tiller designed tit clunk Md gm No 6S 5 KWIK-GLO 010 Plug Connector piece brass barrel snaps onto plug postve start 24 2 w th batt lugslB U yo Na 147S225 Backpressure noise level can varied adjusting muffling spring out fits engine 09 80 Spring Steel AXLE SHAFTS No246 1/txl/8dia No 247 11/Ax5/32dla 8 2x5/32dla No 249 2 x 3/16 dla Pkg 2 $200 KWIK-FILL FUEL PUMPS iiL COMPLETE FUELING SYSTEM INCLUDES CAP FITTINGS FUEL TUBING AND FILTERSMOOTH INFLATABLES TAN) OPiRATiDA PUMP) IT AND 0. VGAGALLON QUART Qfl PINTNaDiameter Per pair FITS ON VOLUME SIZE CANS I 40CR 4' $875 PLOP INo 191 010 Fuel45CR4/z$1095 ShillSFeatures two piece bolt to50CR5$1315 No 250 Gas/dieselgether hubs hub caps Re55CR5Iz$1535 Si 195markably realistic looking60CR6$1755 ocket Bolt orR1IA$300 Head NoDiaPer pair BALL WRENCH SET T200TarR2$325 225TRorS2Io$350 Fts 440 632 head SMOOTH SLICKS TREAD 250 TRarS 2/U $375 Ibolts Leads cap aluminum finish wheel hubs 275 T R S 2IA $400 Iscrew bead trom angleThese low bounce shock absorbing300 T R $3$425 INo 132 bladeswheels feature nylon metalic325 Tar R 31/A' $450 $525finish Pairs matched balance350 Tar R3Vo $475 BRASS PLATED DURA-COLLARSCat Na 137 NICKEL PLATED SOLDER LINKSEnough stock threads will not138 strip can re-worked br many139 other uses Sets include Allen Wrench140 141 3/16 [v32][b-2-10-1-10]]Ava table sets 4$80 per set Nickel plated links will corrode make attractive easy solderHeavy duty connector tor servo control hornVflCat No 243 7/32 Cat Na 112 2 link guards S59244 $100 2 per set k4j4I No Size W 8-32 NYLON FLAT & SPLIT WASHERS 309 2-56 x 10 SOCKET HEAD 310 2-56 x h 8 INSERT LOCKNoSize 3112-56 x tA6321No2 FLAT CAP SCREWSNUTS322Na2 SPLIT 3124-40 x 1101323No4 FLAT 81-i 313A-40 x 1/15~324No 4 SPLIT 315 632x10325No6 FLAT P 3156-32X 1I8326No6 SPLIT 3176-32x 1Is61No 3292OPerPkg327Na8 FLAT P 3188-32x 18lOPer Package 328NO8 SPLIT 1 1/N6 $100 per packagePh 41$100 IIhIIIIiIi II C S 14 Model Aviation pulled completely Out next lost its hinge pin third loose far outboard hinge still intact Thirty seconds longer probably wouldnt have plane Cause prob ably picked up little elevator flutter terminal full-power dives Didnt see though just noticed little trim change Second story Jack Strickland up demonstrating new Contempo Cap 21 us letting us fly flying never landed next Roger Grotheer done sever-1 times noticed little sloppines developing controls threw th transmitter Roger screamed Land NOW batterys going dead Roger yanked off power spun around lost control three ft high flare got back just time straighten out bouncedown got down safely plane rolled stop close by time walked over control would move Third story Giant Scale Fly-in Nosen Cessna 310 being flown its owner noted fliers engine failed No problem guys can handle 'Ill fly baby hang buddy plane staggered around field three tines low altitude plenty room land virtually direction Hero Pilot wasnt going anything fly bird land feet cheers crowd Instead poor plane finally gave up snap rolled disintegrated pile splinters Fourth story focal field test pilot flying new plane beginner Scale builder plane Cub Midway through flight wing strut came loose seen dangling Jim dont know put wing struts shouts intrepid test pilot roblem though just little extra dihedral wing tubes holding fine shouts little laugh Two minutes later wing folded level flight fifth final story concerns Jim Fol lines magnificent Giant Scale PT-19 self flying Seven minutes flight attempted loop couldnt get enough up elevator pull over 'Battery' screamed myself Yank off power try get down instantly Too high too fast safe downwind landing Up half power try make pattern onto upwind normal landing Halfway down downwind leg lost motor control en gine half power power-on landingget down' Roll onto base diving runway roll onto final speed pretty high doesnt want come out turn onto final Regain momentary aileron long enough get level might make it' Halfway down glide path half power battery died completely plane arced over hit almost vertically needed another fifteen seconds point guys is Very seldom will Continued page 16 MINIATURE TOO LS Fresh brand name merchandise shipped directly doorATSA VINGS UP TO 40% SPECIAL LETS GET ACQUAINTED OFFER use miniature tools youll find outstanding values like ourMICROFLAME BRAZING IHhI\ new MICROMARK catalog Over 400~LDERINGKIT tools accessories hard toItem #17101 AV UJ find Save time save money shop one-RegularPrice52995 stop M ICROMARKMICROMARK SALE PRICE 51995 Mail NORISK coupon TODAYplus $200 insured delivery TOTAL 5 DREMEL DELUXE VARIABLE ________-SPEED MOTOTOOL KIT -With 40 accessories Item #38271AV Regular Price 9495 MICROMARK SALE PRICE 55995 plus 5400 insured delivery TOTAL 5 JEWELER S HAND VISE CARBON STEELiiIIii1 Made p0 shed steeItem #21102 AV DRILL BIT SET11111k iLF1ReularPrce $1195 iwSALE PRICE 5695 20 micro-sized drill bitsJLT~plus 70 nsured del very TOTAL57 55 Item #26110AvI Regular Price 51995I plus 5150 insured delivery TOTAL 5 MICRO4IARK SALE PRICE 51495 SAVE TIME ORDER TOLL-FREE 1-800-225-1066 credit card 24 hours 7 days weekl NJ call 201-464-6764 mm m ORDER COUPONm MICRDUARK 5112 AV e 24 East Main Street Clinton NJ 08809U please sand items indicated below WyItem #Price EcTotalTotal enclosed 5 check money order payable MICRO4ARK sorry no coosI charge er card []viseI iiI I5iunatureU HNAMEI Iabsolutely tree big new MICROaIAISK TOOL CATALOGI wish order Im Ordenog now yoar TOOL CATALOGADDRESS Itsr 51 postpaid NJresidents add appropriate sales tanCITYSTATEZIP U NORISACIJSTOMER6UARANTEE Yos nuns 100% delighted retom order within 14 days toralull retand purchase Deco 1mm mm mm mmm mmmm m o MIcRO-MARK 1983 mmmmmmm mmmm mm1 plane fail catastrophically least some warning first little bobble glitch failure notice WARN ING pay attention warning did battery Stricklands airplane time slight trim change Spitfire second time LAND IMMEDIATELY check out prob lem might have plane fly next weekend try macho out ig nore delay just little bit tightening noose around own neck first little bobble glitch failure click hammer gun being pulled back DUCK arent too people fast enough duck hear click trigger being pulled times wait second click DEAD DUCKS letter accompanied article Lee included some comments weight limit Giant Scale models Over Lee again As founder IMAA owner pilot three planes over 55-lb AMA weight limit can state very strongly vast majority Giant Scale model ers strongly support AMA standards size now stand AMA standards extremely fair very deepy appreci ated us heavily involved Giant Scale think AMA leadership has kind stuck necks out support Giant Scale activity especially since movement start has avoided AMA affiliation anti-AMA sentiment just could avoid political hassles us occasionally fly planes larger 55 lb should carry own private insurance no way standard modeling should have stick necks out accept responsibility excep tionally oversize extremely rare models person wants build models size fly should responsible enough get primary insurance isnt responsible has no business being hobby begin Lees thoughts about builders models weighing over 55 Ib carrying own surance may well provoke some correspond ence make sense Although havent investigated cost individual insurance heavy models would venture say would small portion total cost such undertaking Mean issue whether increase AMA weight limit models remains un resolved continues draw corre spondence recent letter AMA Execu tive Director John Worth contained some interesting recommendations has forwarded members AMA Safety Committee consideration ythe risk filling mailbox letters irate aficionados big models recommendations can paraphrased fol lows 1 For Models Excess 20 lb Gross Weight Continued page 18 16 Model Aviafion Wingspan 56 Channels 2 -3 Wing Area 690 sq Engine 19 35 opper complete 1/6 scale R/C model kit designed assemblelook fly like famous WeedhopperTM Model-C Ultralight AIRCRAFT part aluminum structure pre-bent drilled nylon rip-stop coverings pre-sewn1/6 Scale $16995 Available choice four colors hobby shop now1/3 Scale $26995 Other ultralights available soon carlberg companies product 8170 WEST PENN AVE ROSEVILLE IL 61473 PHONE 309/426-2161 BIGE Now Available QUADRAS TOO Thats right BIG E now available both EVRA QUADRA engines theres BIG E PERFORMS flys like dream. its fully aerobatic realistic speeds ONLY $224~ plus $1000 shipping handling US Specify EVRA QUADRA engine order VISA MC Accepted Specifications Wingspan84 Length70 Weight14-1/2lbsreadytotly AirtoiiSymmetrical PowerEVRA QUAPPA engines aerobatics sunday flying BIG E fantastic takes off lands performs like champion Building easyl carefully thought out partially prebuilt kit offers features Easy build.20 hours box sanding hardwood plywood precut size Fuselage sides preformed full length stringers vertical braces glued place Firewall predrilled EVPA QUADRA engines Please specify Unique wing attachment makes alignment installation super easy Great ground handling BIG E extra long fuselage landing gear location Precovered hard cover foam wing turtle deck Flys full pattern power spare Includes hardware EVRA OwflerSParts EVRAengine Update NOW Available Motor Mount Engine Modirlcntions IncludeLord Mounts $1900 increased power Easy hand-starting Twin Stack Muffler turns 18-8 prop 7200 RPM Full-circle ring conversion $2495 Balanced reduced vibration improved timing Baianced crank flywheel optimized reed vaive Rual Hub $1495 Lord Mounts $150 ea ONLY $4500 vw Send check or8631 F Laredo Ln ScoTtsdale money order toE & L ManufacturingArizona 85253 41-0633A World War / isnt Quite Over Yet EINDECKER E-III Please add $2 postageihandling N Y residents add 7 % $3495Balsa & Plywood Construction T6 55 Wingspan / 35 45 Engines 01 Wng 2 e4Cu n Engines GIANT RIC SCALE Morane SAULNIER N * Beau u yMededFbegass Fuselage1 SOSSq AaaB U riewnOduc 000 SOloc avo es * Detail-Melded Transparent Canopyhe rugged cOnsiructius lit 01 tie die-cut pails Both have * Rugged Fiberglss Molded Engine Cnwliegcorspiete itt $27500a histOry 01 contest csiris Easy 10 huiid superb slight * V Plywsud Firewall Hardware includedpius 510 00 ship0 og & haridiirgPlease add $2 postagelhandling * Farmed dia Lsedieg Gesr Legs ny excess ntundedi * Relied Plans ond InstrunlloasvP resiverri add p3-4 Channel RIC Systems$3795 GD-. . a Must have two separate RC guidance systems event fail ure must capable controlling major flight control surfaces powerplant provided no less 50% efficiency b Have additional device arrest powerplant via two RC systems c Before being flown AMA-sanctioned events activities must have flown isolated region away public popu lated area minimum 10 hours included least 20 takeoffs landings witnessed two other AMA members d The two witnesses must present whenever model flown AMAsanctioned events activities e The RC systems control flight controls powerplant elec trical supply sources must replaced after 12-month period 2 For Models Excess 40 lb Gross Weight a Must flown according condi tions stated items through e b Must undergo same step-by-step inspection during construction re quired man-carrying homebuilt aircraft flight-tested airworthiness experienced person has no less 500 hours piloting models experience during past two years also holds valid FAA pilots license full-scale air craft Perhaps recommendations appear extreme measures bear mind contain recommended model weight limit Which better reasonable weight limit some stringent rules cater minority seem constantly strive builder flier worlds biggest model airplane dont know weight /2-scale Pitts S-iS displayed Toledo year its 18-hp Limbach engine swings 36-12 prop puts different category models expect see flown local clubs flying field Perhaps race biggest block will stop Federal Government FAA notices such flying machines still call models Are willing let intercede settling issue maxi mum model weight safe operating pro cedures Id rather have happen about Moving right along havent mentioned Sailplanes seems like last time motorless models subject column regard being flown over houses people somewhere West Coast District X VP Jim Scarborough sent some newspaper clippings told tale An other communication Jim enclosed page newsletter Santa Clarita Soaring Association editors Hank Schorz Ron Lindgren article Winch Safety Bob Owens Continued page 97 18 Model Aviation Safety/Preston Continued page 18 Sailplane enthusiast take heed following Recently club members suf fered significant injury hand winch line attempting untangle backlash winches club contest spectator strolled over observe inadvertently stepped winchs pedal switch Suddenly fellow working line hand entangled line winch started up full 12 volts motor stalled out hand jammed reel Blood spattered three fingers cut badly bruised finger diagnosed brokenit wouldnt move accident over almost before began except injured hand Lets take closer look accident deter repeat can prevented future 1 winchs power should have switched off its battery disconnected fore attempting untangle line 2 pedal switch happened small black three-in-square unit almost invisible unmowed lawn No wonder spectator didnt see pedals should mounted larger base painted bright color make conspicuous 3 Spectator control has very lax flying sites Safety everyones job Spectators should kept away flight line also away winchline turnaround recommend member closest offender kindly explain po tential danger winches ask him stand back away flightline Although involved accident also hazards pulling winch lines Keep clear lines walking downfield returning No pilot should launch until retrievers clear lines aware model about launched will preclude retriever inadvertently walking moving line obvious potential danger retriever pulling line anyone steps pedal switch natu ral walk winch line para chute draped over shoulder Just imagine line cutting shoulder ing slapped face eyes para chute ring Always hold line such manner winch starts up line chute will drag across part body accident too Lets make pedal switches obvious exercise extreme care around win ches keep spectators out danger dont think need add anything Bobs recommendations regarding safety around winches other say despite majesty silence Sailplanes can hazardous too Continued page 128 New 1AA Quickie 200 Torque absorp tion nose struc ture Americas fastest 1AA Quickie 200 $2695 Dave Latshas T-Tailed Rivets Custom glass fuse Complete kit wheels News Flash Ri vets wins Tangerine Int See local dealer order directMd residents add 5% tax PLANE MODELS 2868 Hambleton Rd Riva MD 21140 K U OSTATIC DISPLAYS 20 Categories 0 DEMONSTRATIONS eODELTADARTCONTEST SWAP SHOP 11th ANNUAL GREATER CHICAGO RADIO CONTROLLED MODEL SHOW I U U U U U U o NEW PRODUCT October 1983 97 #J#Ji gned Quickie 500 racing sport flying Kit features hand cut balsa ply s Easy MILLS Insta Build System Custom aluminum gear exclusive torque absorption nose structure Hardware package full size plans Build fixed removable wing TheYellow Fever has won Maryland races four years other Quickie 500 racers combined o CARS BOATS & AIRPLANES l6th M L Oil pO 4ort0OX22i IL 60053 FASTEN YOUR SEA TBELTS! .ATTYOU CROSS THE THRESHOLD TO THE BLUE ANGELS EX PERIENCE YOU CAN NOW THRILL TO THE REAL LIFE ADVENTURE WITH SIX DARING MEN AND THEIR FLYING MACHINES SIT IN FRONT ROW COCKPIT AND SENSE THE EMOTIONS AND EXTREME CONCEN TRATION AS YOUR DOUGLAS F-4J PHANTOM GOES THROUGH ITS PACES WITH 32000 POUNDS OF THRUST TO TOP SPEED OF 1600 MPH! FULL COLOR VIDEO WITH NAR RATION AND ACTUAL SOUNDS MUSIC BY FRED MYROW 1/2 VHS D V2 Beta 1 El 1/2 Beta2 El 46 mm VIDEO $6500 K 89 min$8500 El Shipping $250 ea lilust Info Pkg $200 El refundable purchase VISA El MASTERCHARGE El Number_________ date_______ N moo _________StateZip AUDIO VISUALS INTERNATIONAL PO BOX 1390 WOODLAND WASHINGTON 98674 Nick Zirolis F4U CORSAIR 2 Cu size Engines Fibergiass Fuse age & Cowlieg aua able fur lee O5SiQC GIANT RIC SCALE PLAN DESIGNS AT6 TEXAN24 I101Span52700ppUSA POKKER DR27163Tripe$2000ppUSA PAP REARCAT2 186Span$2700ppUSA CURTISS P402 194Span$2700ppUSA FAU CORSAIR2Y 193Span$2700ppUSA Fiberglass Cowliegs & Canopies available ase Send sramp aelaileg urusnures Giaer Scale Accessurius Oar Fans seer Fusfpaid arilbin UgAl last item leave also con cerns Sailpianes sort came form short note photograph Dale Willoughby will know has vast collection documentation photographs Scale modelers available Scale Model Research Orange CA As can seen accompanying photograph subject Dales story electric-powered Sailplane-like model being launched recent US/International F3E Challenge com petition photo taken moment wind gust caused model twist launcher Dale Blacks hand Dale member Harbor Soaring Society long-time RC Sailplane Ilier momentarily forgot model whirling prop its nose quick grab straighten twisting model resulted some nasty cuts left hand Moral Dont grab business end F3E Have safe month John Preston 7012 Elvira Cr Falls Church VA 22042 Fun/Winter Continued page 28 lems inadequately-sized vertical tail area old designs Author case full-scale old-timers am great believer sticking orig inal scale size compensating providing thicker effective sec tion Most modelers completely ignore aerodynamics come tail cut out sheet material cause comparatively small size tail surfaces models need especial attention section used sug gestion square trailing edge good Author talking model aile rons flutterpointed control sur face edges probablyand Joe Bridis constant-thickness ailerons trainers Author I half-buy However smaller model tougher stick scale tail areas time get 1/5-scale larger ability hold hold scale size penal ty becomes increasingly greater de part scale airfoils resort freely flat-bottomed ones Especially thick have serious CP travel increasing angles attack thus require larger tail area symmetrical semi-symmetri cal some other scale section used first case because mon keying around might need 30% stab latter less 20% 15% less ship least 4/2 5 ft span long fuselage arm 10% would feasible some cases talk full-scale powerplane experience glider experience scanty have noted RC models sectioned stabs streamlined double-triangles end-to-end ribs fly better sheet-tailed crates dont have foggiest reason respected pilots say true Bentson Perhaps best argument upward-rigged ailerons comes modern sailplanes camber-changing flaps ailerons arranged move up down flaps Although would preferable take off aerotow flaps slightly down common practice take off least initiate takeoff run flaps up cause better aileron control obtained less likelihood wing tip touching ground case aile ron drag factor because tow attachment nose Humor guys because game plan column has gone up smoke Old-timer modelers Indoors Sailplanes FF Power etc have dozens years hands-on experience better Rubber Scalersand Wakefielders Nordic guys think Tweakers Breathers fine tuning crates seems stream consciousness us books articles aerodynamics appear written folks weve never met greater man able communicate matters far beyond us simple understandable wayand truths revealed witnessed TV worlds greatest musicians con duct Masters Classescelloist Casals exampleyou mesmerized ability true geniuses touch gestures simple words humblest student dare say Ein stein field Dr Lippisch could convey over coffee glimpse im ponderables unattainable lifetime reading Having nothing prove great teachers dont blow us away avalanches math gobbledygook contrived impress peers close loopholes criticism other elitists talking During early 1930s once sat up night reading small book aero dynamics explained airplane flew basics stability factors propeller design designer went about buildingblock process based rudimentary things probably way people like Bellanca Fokker etc wrought magic simple book seemed like Christmas Future So humble author George Page greatest designers age man produced miracles Curtiss years before war Youll never see book like again alas read About Size January 1978 Model Aviation Brad Powers experienced vision basic relationships Powers long re tired few readers knew renowned project engineer Convair participated long string re markable aircraft Somewhat like Page compressed universe rare 128 Model Aviation