32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM
Edition: Model Aviation - 1984/03
Page Numbers: 58, 59, 60, 61, 151, 152, 153
32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM
Edition: Model Aviation - 1984/03
Page Numbers: 58, 59, 60, 61, 151, 152, 153
32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM
Edition: Model Aviation - 1984/03
Page Numbers: 58, 59, 60, 61, 151, 152, 153
32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM
Edition: Model Aviation - 1984/03
Page Numbers: 58, 59, 60, 61, 151, 152, 153
32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM
Edition: Model Aviation - 1984/03
Page Numbers: 58, 59, 60, 61, 151, 152, 153
32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM
Edition: Model Aviation - 1984/03
Page Numbers: 58, 59, 60, 61, 151, 152, 153
32Aflflfl9-P/T1 ~9II_ m jIh_ __ \IZIIIlinI ~ Iqm________________— m U Wave flag guys Youve set recordl American flags flew pylons marking one-kilometer course Stretcher II dipped wings salute 1530 times between 902 am 617 pm July 4 1983 Part crew worked set new record 765km proudly displays spirit day L-R John Patton Doug Harper George Pickrell Maynard Hill Mel Newcomer Charlie Calvert Harry Gratten Jack Anglin shown Mo Chance took pic Glenn Scillian Wayne Simpson go picnic *4 ~** E aynard L Hill ON SUNDAY July 3 1983 John Patton George Pickrell Mel Newcomer author gathered Mr Butts horse pasture near Sunshine MD flight session measure fuel consumption flight speed RC model Definitely nothing unusualwed doing year about 40th 05F60 engine has no varnish goo after hundreds running hours nice fea ture four-cycles Hand-carved 14-10 narrowblade prop used turning 5600 rpm static 6700 air Tubular object 11 oclock behind spinner magnetic pick-up capacitance discharge spark ignition system made C&H Electronics Carburetor stock unit adapted inlet through homemade right-angle block decrease engines length get carburetor vertical position easy throttle linkage Odd spark plug homemade unit contain ing 10K-ohm resistor potted piece arrow shaft tubing Needle valve normally about half-turn open fuel must extremely clean prevent blockage setting World Record far PICflIC takes much forethought testing practiceand case ClosedCourse Distance World Record powered RC models stamina pi lot officials also tested Fourth July some food eat best new World Record es tabl ished such sessions addition already made four official attempts break FAI World Record 740km RC models closed-course distance record set two Soviet modelers Y Saslavskj Smo lentsev 1979 say names out loud come out intonation disrespect Ill explain reasons later Furthermore totally destroyed four models crashes experienced three other crashes damage major repairable Mother Nature kept reminding up against tough challenge effort closed-course distance record set up two pylons 500 meters apart credit 0 0 2 i-I Li F WING AREA TA9 AREA TOTAL AREA ENGINE AIRFOIL FUEL TANK 73G3 Lm2 IaGG 8G 29 jg OFS GO NAC G3A212 IJ pI ALL MEASUREMENTS ARE iN CENTIMETERS 93 F3A-3I FAT CLOSED COURSE DISTANCE MODEL 7G5 km070483 DESlNEDBulL7J FLOWN BVU5A IILLUSTRATION 9V PAUL J KIRSCH] straight legs generates some special design performance problems make model small clean speedy airflow Left Fuel consumption tests simulated flight environment done mounting engine ski rack atop authors car baby bottle tied rear view mirror carried fuel pressure pump back Seat forced fuel up float chamber mounted behind engine Four-cycle engines dont spit out globs oil windshield roof stayed fairly clean Right Maynard Hill prepares engine test yard near home Neighbors didnt protest incessant runningpartly because understand authors enthusi asm mostly because OSF6O four-cycle quiet comparison lawn mowers air conditioners swimming pool filter pumps kilometer accrued com plete circuit flight must course nonstop combination tight turns I Left Engine testing went through two winters though February 1983 Mother Nature laid claim test operator seat Fuel syphoned baby bottle stand down float chamber engine test mount Engine runs about 1% hr full bore 240cc about 8 oz Right picture taken balmy November afternoon 1982 second official attempt record unsuccessfully made authors mother wife came Out about 400 laps give encouragement crew asked elder Mrs Hill Maynard built airplanes life replied Well time know didnt before born over wing propeller can become messy turns model can stall out slow down horrendously during turn make model big slow pilot fatigue will set before can com plete necessary number laps rule man must fly modela stupid rule opinion exists fifth model settled 77-in-span bird called Stretcher II previous Stretcher set closed-course dis tance record 189 mi cross-country dis tance record 184 mi back 1965 Stret cher II uses OSFS6O four-cycle engine thats converted use capacitance discharge spark ignition system Four pounds gasoline-based fuel carried wing tank fed float chamber down near carburetor hand-carved narrow bladed 14-6 propeller settled best compromise big variation drag straight legs vs turns Hewitt Phillips helped design propeller superb computer program very early project came amazingly close defining optimum Another friend put turn straight leg mixture problem home computer answers werent much help computer no way deal reality turbulence bumpiness out real live Mother Nature have home made dynamometer several notebooks filled data about fuel consumption vs engine rpm horsepower case like numbers can report engine producing 033 shaft horsepower during flight used 103 lb fuel per horsepower/hour static ground testing wasnt adequate method finding out what really needed know What also did strap engine onto ski rack top Toyota Celica 240cc baby bottle full fuel tied right rear view mirror fuel pump located back seat put pressure baby bottle lift fuel up float chamber Oh did have fun Id start engine jump behind wheel drive onto some interstate Id barrel 30 minutes constant speed tach ometer mounted up against inside windshield first wife drove eventually could hack alone inasmuch gasoline out doors could smoke cigarette two during run During quick stop interchange Id read much fuel used fill bottle take off again new speed Only once stopped state policeman midst 75-mph run thinking trying use chase aircraft time agreed decent pick time highway little traffic didnt cut mustard off fine sympathetic too suggested really perhaps would possible arrange permission escort Instead aban doned chase aircraft idea dropped down closer legal speeds tests burned awful lot gas Celica over period several months Interest ingly enough four-cycle engines quiet other drivers road did hear engine above road noise Also pro peller essentially invisible Only few people looked oddly sum mertime think wondering what kind funny set skis strap ped up data auto tests helped quan tify propellers various pitch di ameter would unload produce increases horsepower rpm fuel consumption air hours tests still didnt Congratulations going both ways between Maynard Hill RI Charlie Calvert CL latter Contest Director Fourth July event Charlie made sure detail done satisfy letter intent rules may always case other countries text Stretcher II has very long tail moment give good pitch stability Wingspan two meters Fuel contained tank built center section wing Above This isnt record-setting model first series five led achievement flew well structure too heavy allow sufficient fuel record unless model flown slowly 15-16 hours Pilot strain such long flight prob lem new models lighter weight built allowing enough fuel carried produc ing record 9-10 hours Actually heavier model could lift weight rules limit gross takeoff weight 5kg 1102 lb way increase fuel capacity cut down structural weight Above Right framework No 1 model shows lots balsa sticks fuselage Control ailerons elevator elevator servo mounted tail throttle wide open flight throttle servo used mainly cut-off Below Model No 2 well Nos 3 4 5 longer sleeker fuselage small circular cowling wing much lighter being built-up balsa ribs Airfoil laminar NACA 63A212which caused some funnies tight turns model would slow ex cessively jumped out drag bucket high lift Some trailing edge separation occurred too causing excess drag problem mitigated using power limit ing bank angle model fully loaded Right heavier foam/fiberglass No 1 model wing shows kind wing tank used versionsmade 1/16 balsa sheet coated polyester resin inside wrapped fiberglass/polyester outside spell out whole story way could get truly representative fuel con sumption figures go out Mr Butts farm fly around course hour two measure time per lap total fuel consumption Wed put man radio pylon around around wed gocounting timing weighing counting timing weighing ad infinitum heavy midweight nearly empty weight family pro peller pitches diameters model weighs 6% lb empty 10% lb full Flights about hour duration necessary average out variations came actlike pilot error turbulence ther mals wind still few flight produced data point tedious work Some crashes simply result getting preoccupied measurement process forgot fly airplane properly July 3 wed become pretty scientific about process announced prac tice crew Today will put 240cc fuel machine engine will run 66 mm will make 88 laps often made kind prediction try inspire confidence amongst crew Theyre really good guys stuck missing mark 100% July 3 engine stopped 66 mm 1 sec gone 87 laps Closer could get John Patton said Hey Maynard think youre ready dont celebrate 4th taking record away Russians reluctant First takes big crew official attempt theyd want picnicsnot working heat Sec ond airplane flying crashed repaired 8 oz heav ier fresh Third out new airframes spares Fourth weather predicted very hot possi bility thunderstorms Fifth wasnt psyched up planning day re laxation myself calculated things found 8 oz extra weight wouldnt hurt much Wed have plenty fuel got psyched up right quick So struck deal sufficient crew could come out would give whirl 902 am 4th July 1983 Stretcher II hand-launched after being legalized certified official FAI World Record attempt over 11 lb launch engine no bigger 10cc plus some area wing loading restrictions temperature already up 800F sky clear wind nearly dead calm Climb-out smooth its never spectacular fact dont really throw model hard sinks ground before prop uristalls bites provide enough thrust climb tedium began Id fly straight about 15 sec ham radio receiver nearby would belch out Turn now Round wed go 1800 turn 4 5 sec another 15 sec straight flight another belch Turn now day long would hear Turn now Turn now Turn now Turn now No said anything else because brain busy con centrating flying precise course Everytime talked Id lose couple seconds lap turned electrostatic wing leveler about 10th lap things seemed smooth out right money 435 sec lap full fuel load Lter fuel tank nearly empty number would decrease about 41 sec Well would have wind stayed calm Continued page 15] ftAre4 IOSaA 1 group puts out little effort See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 Distance Record/Hill Continued aoe 61 passed 100-lap mark 1017 amstill right money comfortably ensconced chaise lounge shade umbrella um bilicals automobile battery 5-watt linear amplifier plugged transmitter like strong signals servos dont twitch use extra current out ends course Five hundred meters eye-straining distance some previous work Ive concluded youre straining eyes servos usually twitching due low signal strength no symptoms youre danger crashing because servos still getting lots information just wiggle drain extra juice pushing towards 350 laps around 100 pm realized turn ra dius getting pretty big though holding hard-over aileron control stick airplane wouldnt bank about 10 degrees Uh Oh something Id felt before electrostatic autopilots thunderstorms start build up within about two miles flying site Usually observation serves warning would good idea pack up go home Sure enough looked behind back southeast big black ugly cloud sky clear above site wouldnt long explanation flat turns thunderstorm approaches atmospheric electric field usually about 150 volts per meter positive upwards often rises 1000 2000 volts per meter still same polarity signals coming wing sensors increase factor 10 20 hard-over command transmitter balanced out feed back 1oop airplane banks couple degrees times air plane becomes stable can hardly turn What also entered mind point 6 0O~~N\QkC6m 0"rd n PERFORMANCE CHAMPION RUBBER 1/a i/ax & iA Widths 040 Thick $1295 LB* See hobby Oealer Order direct FED CHAMPION MODEL PRODUCTS 880 CARMEN COURT LA VERNE CA 91750 714 599-3348 IiC aCS US oelxeiy via 3P 3 OaCf resloents asS 6% sales lax black boomer comes much closer electric field will reverse polarity build up 10 40 kilovolts/meter little old airplane going want fly upside down So shut down electro static stabilizer prayed no rain decided take care necessary physical process before impending doom arrived also ate sandwich left-handed lost 5 10 sec per lap about 10 laps guess thats because Ive never learned pat head rub belly same time storm coasted about mile southeast little rain fell between 200 220 pm Well enough make us put transmitter plastic bag guess wasnt just little wind about 15 mph blew parallel course about hour Lap time sank back about 47-48 sec upwind legs seemed inter minable obviously record meant happen day about 315 wind went dead calm again sky still overcast audible thunder several miles away couldnt resist urge find out something scientific switched electrostatic stabilizer Zaroomthe airplane went hard over 900 bank before could flip off stabi lizer electric field reversed suspected Somebody crew shouted Dont again passed 700-lap mark about 530 pm Hoorayonly 64 go FAI office said record 740 laps Sovi ets said 749 didnt know believe sure goal go 764 laps 2% past 749 circuits Wed having pretty peaceful time nearly two hours mild head ache otherwise felt pretty good about 545 pm peeked over left shoulder southwest Good grief another big black ominous cloud Worse last Thunder too Char lie Calvert Contest Director said Dont worry Maynard just did rain dance wont come climbed normal 100 ft up about 300 ft buy little safety margin kept flying peeking flying peeking flying peeking coming directly towards us going hit us going about 5 mm Rats Rats RaEs 15 M2rrh 1984 151 ANOTHER GIANT FROM J-5 tough TORNADO 4 feet speed stability TORNADO loves rough water handling Mahogany Plywood Boat Kit Designed Industrial Quadra other 2 cycle engines FuLL-sIZE PLANS PO Box 82 Begmont Ontario NOL IBO Phone 1-519-644-0375 $ 1795 laps still go 756 laps cloud let loose its fury produced classic out flow winds come before full whomp thunderstorm Oddly wasnt much rain However sure great big wind order fly straight up down course crab wind angle 450 flight path What says since model flies 58 mph wind must have about 41 mph straight across course first three four laps really scared full bumps mild upsets lap taking well over minute realized wasnt much different what some times slope-soaring Sailplanes blasting winter winds mountainsides up near Cumberland MD No big deal Just steer well make mind whispered Somebody yelled Hey might get hit lightning' re sponded couldnt think better way go Sound brave Crazy Neither case Ive studied thunderstorms enough judge have its lightning two miles away threat minimal wasnt about stop three laps short got 764 required number gale still blowing remembered crew earlier Duration record flight expressed little regret quit 20 hr instead going full 24-hr day Jok ingly asked Charlie Calvert Should keep going 000 laps response unprintable essence ordered land said Lets tack lap good measure Turn now came emphatic command John Patton far radio 765 laps enough dove 300 feet ground about 10 sec poured steam wind chopped engine 10 ft off ground landed no damage broken prop something happens often landing spot 60 meters launch point did threw Kraft transmitter air like midshipmans hat gradua tion Its good piece equipment caught way down crew jumped over other like Redskins after winning touchdown wind stopped celebration little rain fell champagne flowed Mr Butts joined us healthy sep tegenarian rides horses day owns flies Aeronca Chief fine Maryland gentleman youll ever know Hed seen failures during past year came cheer used American flags mark pylons honor 4th waving happily truly wonderful event descended us tractor-drawn hay wagon 50 sub teen children pulled up front us Mr Butts son daughter run childrens camp within earshot flying site children saws what ing day asked could come over sing America BeautfuI help us celebrate beautiful rendition magnificent didnt look Im sure Im the crew choked tears best darn 4th July picnic Ive ever Ab yes back Soviets As worked airplanes engines record kept mumbling myself tough Im using bit experience Ive gotten out 14 previous records still cant seem hack t dont think theres Soviet smart enough what say did dawned rules say engine has run 98% time dont say engine has lift airplane obviously powered RC class intention Ill bet did slope lift fuel-slurping engine idling Sure enough eventually verified used two-cycle engine glow fuel record impossible com bination period Further verified site de la pente sud du Mont Kle mentyev le vent du sud de 5 /sec translated says site south slope Mount Klementyev wind 5 12 meters per second south Twelve meters per second about 27 miles per hour brick piece plywood could glide kind slope lift engine nothing performance other idle meet specific words rule book Never mind powered airplane uses engine pull through air thing alarms flagrant violation intent rule isolated case S Send $100in Cash Check Stamps 32 Page Tabloid size illustrated DISCOUNT Catalog Sent 1st Class Mail COMET- COX FLYLINE- FOX GOLDBERG GUILLOWS JETCO K&B PACTRA PECK POLYMER PERFECT SIG STERLING SULLIVAN TOP FLITE & OTHERS PENN VALLEY HOllY CENTER 637 1 Main St Lansa1ePa 19446 22S 855 268 0228 KIT & DRIVE TRAIN $19350 Super offshore Deep V KIT DRIVE TRAIN & ENGINE $32445 J-S ENTERPRISES other records FAI files indicate Soviet minds tend seek exploit loopholes rules could expand previous sentence article would appropriately published some Journal Social Psy chology will limit myself express ing hope political officials will leave no loopholes rules now trying write about competitions involving nuclear weapons did record hard way proud have put together real good 4th July picnic food terrible dried-out ham cheese sandwich aerial fireworks spectacular Approxi mately million eight hundred sixtysix thousand consecutive explosions pro duced truly revolutionary celebration SlySir/von Lopez Continued oaue 64 Cut wings stage before start cutting spar notches use same cutting bow spar notches Pull out wing templates plug spar-notch templates will able use same nail holes both templates drilled same spots cut down front across bottom up back Dont spend too much time spot hot wire will melt foam intend Practice some scrap pieces foam Its really easy once get feel After have done first wing panel check grooves spruce spars dont fit perfectly make some adjustments templates try again Leave templates place inboard wing panel cutting wire can now passed through hole made 078 music wire tape end cutting wire piece music wire simply push through hole end cutting wire held surgical forceps Alligator clips electrical power source hooked up between forceps wing cutting wire go around lead-out slot twice stop center slot letting cutting wire cool cutting wire pulled out pull out center rib side rather wing tip side will also pull out foam material has cut out Any remaining foam can poked out wing spar hole bladder tank tube must cut 1-in-dia aluminum tube has sharpened Dremel tool will well found shower curtain rod hardware store exact size Just push turn tube wing will cut foam easily Mark aluminum tube 5 masking tape wont cut too far wing Sometimes round foam plug will come 3-FUNCTION ACCUTACH ITM O LCD Tachometer w/dual scale capability lox bOX @ Digital Voltmeter load /5 && checking/cycling TX/AX battery combosACC&I-tACl7 tor quick 1charging operationa 095 7 prepaid Noror Calqz~ Calif add 6% tax INC94086 wj5NLINE METAL SPECIALISTS COMPLETE THIS FORM AND AlTACH MAILING LABEL FROM RECENT ISSUE LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks required change address Attach current MA mailing label check appropriate box mall Subscrip tion Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION C CHANGE OF ADDRESS Non-AMA subscription rates $1800 12 months US possessions elsewhere tinciuding Canada Mexico $2400 US Schools $900 US Libraries $1350 NAME ADDRESS CITY/STATE _______________________________________________ ZIP ________________ MODEL AVIATION 1810 SAMUEL MORSE DR RESTON VA 22090 Great Lakes Model Company 5173626078 PO Dcx 308 Tawu5 CityIALL MAJOR COMPONENTS Ml 487631MOLDED URETHANE FOAM