Free Flight Duration Ron St Jean first two guest columns longtime Free Flighter Ron St Jean months column departs usual type coverage provided MAs FF Duration columnists presents point view subject Free Flight rather having news items Wefound quite thought-provoking timely Ron submitted possible feature article decided share readers spot instead conclusion two-part column will September 1987 issue COMPETITION a philosophy Perhaps Im just getting too old am no longer interested attending model contests 1984 Reno Nats last attended sole purpose demonstrating SFC-built ships competitive SFC stands structureless foam composites method constructing Free Flight models developed pioneered Ron An article method appeared April 1982 issue small sport FF model using type construction Alpha August 1983 issue RMcM might still compete enjoy able not. Just too much hassle philosophy competition states doesnt matter what rules because affected equally surface seems quite reasonable since cases least affected equally What considered however competition under some rules may enjoyable fly model airplanes competi tion enjoyable way practice sport hobby compete increase self-esteem via increasing inventory trophies analysis suggests us compete both reasons grow older us display diminished ego-satisfaction needs enjoyment endeavor becomes increasingly important Eventually may reach point no enjoyment remains just quit because cost has gone too high cost mean dollar-cost cost terms energy time mental anguish course replace anguish enjoyment becomes plus negative cost extreme know fliera fierce competitorwho has openly stated likes exceedingly difficult contest conditions best reason others become discouraged drop out thereby crease chances winning. wish have rules reflect philosophy Though avid trophy-hound youth law diminishing returns set about 20 years ago new trophy did less ny ego before Soon afterthis sport flying largely replaced competition simply because fun Deep heart Texas wide-open spaces best FF field Houston area half-hour drive southeast Exxon site Although nearly mile square Its punctuated oil-well rigs tanks trees cattle power lines 4-ft brush wild bean stalks photo taken mid-field Over freeway gone Too small Category Ill ratio-scoring would work I1 ou UJ1 oo11 76 Model Aviation Ron St Jean wanted build couple airplanes test out new FF competition concept called 6Xand forgot quit St Jeans SPC construction Hell talk about 6X September issue Heres what beginners FF Gas model might look likebut experts would have restrained competing against ginners order allow type new event effective 1 new type flight card would needed ratioscoring Heres example what completed would look like after flights made scoring completed now 60 years age Im still active flier its just Im no longer active competitor fly Free Flight now adjust engine runs dethermalizers fit field Im flying inand existing wind well current competition rules such fine-tuning adjust factors conditions change during day possible Conse quently risk loss damage models increasesand risk increases enjoy ment decreases purpose engage nitpicking existing rules rather seek best philosophy guide us rules-changes additions Should same guides fierce competitor mentioned earlier should something else deliberately set out make contest conditions difficult possible what will eventually happen numbers modelers competing Will left few fierce competitors rest have switched sport flying another hobby what want flying model airplanes goad thing people should instead carefully consider adopt rules will encourage competition rather discouraging Cannot principle maximizing competitive enjoy ment used rules deliberations Should new philosophy wish share hobby/sport others possible should give place thought special beginners events Beginners events AMA has upon several occasions established special events begin ners Junior/Senior/Open age classifi cations mindbut failed recognize some 1 3-year-olds experts 30-year-olds beginners RC concept having several skill categories went far towards popularizing Pattern events As became winner less-skilled category ad vanced next higher category skill FF Indoor events however focus attention has upon simplifying models flown require less skill build As result same experts win advanced events also win beginners events same result has come about Outdoor FF Rubber events focus has also upon model simplification Current efforts simplify special FF Gas events going same direction Clearly Free Flighters need learn lessons RCers can teach Based upon AMA history plus little logic would recommend following considered structuring special beginners events 1 Reducing building flying skill-require ments will certainly permit individuals construct special models never has anything wrong concept except itself incomplete 2 Because beginners youngsters small amount cash consideration should given cost-minimization might join fun 3 Experts must kept flying begin ners events since beginner still hasnt ghost chance winning against experts way doing have parallel begin ners experts events allow contestant enter thembut both reason AMA Delta Dart program successful three ideas incorporated just shame no intermediate event kids could advance less competition regular AMA competition events better flight limit FF Gas During first two decades what now call Free Flight Gas no such thing flight limit made 43-minute in-sight flight given 43 minutes credit Eventually ever became obvious something done about situation key made first flight limit feasible invention practical dether malizers introduction 10-minute limit late Forties fewer lost models because fewer drifted off field still too 10-minute limit reduced first six five minutes proved inadequate now have separate categories three- two-minute limits shrinkingand outright disappear anceof suitable Free Flight fields popu lation United States grew small-field problem never went away just became intense time bad now Continued page 174 July1987 77 lsthlswhat happened toyouroid Free Flightfleld tooThls wide-open spaces West know Ahi greatopen spaces FarWest Just rightfor endless FF right Well Ron says field light-colored area about 35 60 milesadequate forfive-minute flights mornings calm marginal two minutes windy afternoons ratioscoring competition scheme would permit used contests flight beyond cleared area will amid modal-eating sagebrush Heyl likethe early days Using small syringe eyedropper fuel tank largeronetoflil itallowafor reasonable control ofenglnerunswithouttheneedfora timerespecially tanks call brated markings visible Using competition would feasible ratio-scoring used Send SSAE ton catalo0 sheet nor complete line MACHINE SHOP SUPPLIES ING MACNINES LATHES BLUtA1kE S []o/ MACHINORY AND tOOLS INCPer n WV2002e304002 3030CnIng 0100 Avianlon IICMedelr SPECIAL MEl 104gb PHE drIve bole Save Over H AMERICAN AIRCRAFT MUSEUM GUIDE WhatWhere 1987 Edition MORE $975 US Postage Paid Checks MOs BrucelBeeson Publishers 2428 East 86th Place Tulsa OK 74105 masking tape model parts laid place rear boom segment longer tail boom stand might have required support front end careful adjustment height position raw ends boom mated repaired whole process repair including setup stands took about 20 minutes Incidentally because built-up boom could repaired precisely model trim still right after repair Another photo shows installing tail bracing using tail boom stand stabilize boom reduce handling stress Next time bracing schemes promise Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/St Jean Continued page 77 fliers could safely make two-minute flights best field available within 100-mile radius homes Should formulate new rules toy once again solve shrinking-FE-field problem need Category IV one-minute limit maybe Category V 30-second limit order contain models smallest fields Are categories type approach better way solve problem wish get new people EF Gas making attractive could done currently three field categories FE Gas times five size-classes times three age groups times two launching mediums HL ROW equais 90 records AMA keep track Isnt overly complicated especially view decreased interest FE Gas recent decades What would appropriate engine run 30-second limit Perhaps two seconds Use second flyoffs really want add another 60 slots record book Consider will totaily different alter native current method coping small-field problem Suppose instead went concept best measure FE Gas models performance ratio flight time divided engine-run time would numerically equivalent climb/glide ratio plus would easier calculate no subtraction would needed just division accomplished few seconds aid least-expensive pocket calculator Inexpensive watches also now available job can shut down end engine run accurate reading affecting measurement total time timer would record both engine run total time flight total-time/engine-run ratio would calculated official handling flight cards Finally average three still clinging three-official-flights concept flight-ratios would taken contestants final score event surface would appear just different way compute FE Gas flight scores however takes time analyze implications doing way. Please con sider following 1 would no longer need three four number separate flight-limit categories would job quite nicely would no penalty short flights fit small fields long engine runs correspondingly short ship will 180 seconds 10-second engine run should about 90 seconds five-second run scores would same 1800 case Conversely field wind should allow could score same 30-second run nine-minute flight 540 seconds 2 Contest Director must now declare contest Category II III before start competition Once started no changes category may made Ear West mornings calm afternoons windy Conceivably could use Small field Category until wind came up switch II 111but permitted suggested scoring method such ad justments changing wind conditions would automatic would made contest antsnot CD 3 Current rules favor marathonsfive 10 15 flights sometimes being required win suggested scoring method result division carried two decimal places ties would occur infrequently could broken using best poorest score three flights recognize suggested scoring method vastly different used during past half-century would require some getting used several questions come up Some questions will addressed below Qi should wish have 50 years tradition dumped different method scoring Al First doing would give greater relief flying smallest fields No longer would CD have guess what worst wind conditions would during day picking fixed competition category Instead would done contestants would lower engine runs thereby lowering flight times wind picked up would want such way keep models sight within available field Second fields under some conditions too small two-minute flight conditions came up fliers themselves could adjust shortening engine runs thereby reduce flight times degree needed keep losing models Third some modelers enjoy longer engine runs flights conditions permitted could have restructuring competition did preferred short engine runs flights could exercise preference tooboth under same rules As fourth consideration making change would reduce AMA Gas Head quarters record-homologation efforts onethird what present fifth point sophisticated costly often troublesome engine timers now re quired competitive nine-second engine run allowed get eight seconds Im handicapping myself 11% ratio scoring outlined would no such handicap fact may need timer fuel control alone being accurate enough Finally flyoff marathons would cease would no longer several ties due fliers achieving three mazes Thus contests could end sooner fliers could compete events instead being stuck marathon sake wioming single event would increase both competition entry fees QZ about delayed flights Would 40 seconds less still constitute attempt A2 No 40-second cutoff would no longer applicable would too long short flights too short long flights would suggest score 200 lower constitute delayed flight would retain same relationship traditional 40 seconds didto 20-second engine run Q3 seems despite ratio idea would chance losing models just win contest Lets say example field conditions such must get qulte high get lift strategy would use 20-second engine run get lift would require eight-minute flight get good score 2400 estimate ship could stay sight long would well off field Im willing take risks involved sol go A3 point well-taken want rules help prevent loss damage models some extra precautions order Id suggest rule book give CD authority spell out field rules needed solve type problem before happens such possibility OOS flights scored zero least made delayed flights should prob ably written rule book better example such field rule would something like flights terminating lake forest over fence residential district mountain swamp tree Kitty Litter factory etc shall scored zero Would provisions like succeed encouraging keep model within boundaries field Except OOS flights such field rules should option CD order best adjust rules local conditions temperaments 174 Model Aviation PUAUW DIESELS Englands Finest 049 35 R/C STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 UILD YOUR HELl TEST YOUR HELl AIR YOUR H ehighton Pa 18235 WRITE OR CALL FOR INFORMATION PRACTICAL SIZED GIANT Fibercl~ flnailings Canopies Available Plans sent Post-Paid within USA Send 5O Full Catalog Balsa Order Nick ZIroli 29 Edgar Dr Smithtown NYI 1787 USA ELS byNICKZIROLI Jets too 516-234-5038 Q4 subtitle suggests may better flight limit now used can find no such limit writings A4 Right no stated flight limit proposal limit variable depend ing upon conditions specific field specific time official flight made limit maximum flight time estimated possible under conditions given field rules combined desire preserve model intact limit such self-imposed flier will detennine dethermalizer timesetting turn will determine length engine run used flight would want use 30-second run two-minute flight nor could normally expect threesecond run produce eight minutes max imum score could come about using minimum engine run flight time estimated possible under conditions concluded September 1987 issue Ron St Jean 3394 Dale Dr Carson City NV 89701 Club PR/Kanyusik Continued page 84 Radio Control remembered rubber-powered models day Wakefield Copland model displayed struck familiar chord being closer models group known flying club plays key role Mankato areas annual Bend River Days Thats whenwe kick off summer flying season putting free fun-flya chance public see some well-built planes look great fly great summer flying season area short exacts price Battling gnats horseflies mosquitoes part package fact persistent mosquitos efforts draw blood models weve come call official state bird Fortunately iron-on coverings can patch up holes airborne again jiflr mall show spring itss well-stocked models members have built during frozen tundra sea son exhibit shows us advantage presenting image serious pro fessional group modelers Gary Endersbe represents club service club circuit flying field well always takes along examples planes has built show newcomers range Tipsy-Nipper L-4 Scale model quarter-scale Zlin Key City Bald Eagles ready assist young flier shows interest learn ing build fly Radio Control models helps us gamer new mem bers perpetuate interest sport Its happening everywhere Clubs over country getting involved communities finding rewards well worth efforts strong public relations program like Bald Eagles draws new members keeps club dynamic vigorous earns attention respect community Santos-Du mont/Kruse Continued page 88 Wrap Super Jet recommended basic construction rear fuselage side however begins taper sharply point might want use flexible cement like Ambroid since joint will have cracked order fuselage pulled together per top view As fuselage box being formed up dummy engine should glued place small drops Wilhold RC 56 before top crosspieces immediately above dummy engine glued po sition Also leave off cabane/landing gear struts until after fuselage cov ered fact should construct landing gear until after wings mounted cabane struts wings constructed identically /32 strip ribs 34a-sq stock should present no problems use 3/asq wood may seem bit unconventional readily available MicroX Prod ucts Inc PO Box 1063 Lorain OH 44055 somewhat larger 140-sq may substituted obtaining 34a-sq im practicable Using s-sq stock would im pose too great weight penalty however advised Notice center section bottom wing left uncovered flying surfaces including box kite front stabilizer covered side used MicroX Early Bird tissue has nice antique look although lightweight tissue would work Probably best way go canard through following sequence 1 Build top bottom surfaces 2 Cover bottom surface 3 Construct box shape air speak adding side supports diagonals vertical II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Raston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 I NameI II Address City/State ______________________________________ ZIP ______________ UModelAvietion 1810 Samuel Morse Dr Reston VA 22090I July1987 175 DC-31W Span$4200 F4U CORSAIR2% Span$3000 AeM5zERO2W 191 Span$3000 cuRTIsP402' — 194 Span$3000 AT-6TEXAN2A Span$3000 FBFBEARCAT2A Span$3000 FOKKERDR-127 Tripe$2700 Plans RK-200r RK-740 Ducted Fans Phantom35 span$1000 Viggan32 span$1000 F-iS36 span$1000 Plan canopy$1500
Edition: Model Aviation - 1987/07
Page Numbers: 76, 77, 174, 175
Free Flight Duration Ron St Jean first two guest columns longtime Free Flighter Ron St Jean months column departs usual type coverage provided MAs FF Duration columnists presents point view subject Free Flight rather having news items Wefound quite thought-provoking timely Ron submitted possible feature article decided share readers spot instead conclusion two-part column will September 1987 issue COMPETITION a philosophy Perhaps Im just getting too old am no longer interested attending model contests 1984 Reno Nats last attended sole purpose demonstrating SFC-built ships competitive SFC stands structureless foam composites method constructing Free Flight models developed pioneered Ron An article method appeared April 1982 issue small sport FF model using type construction Alpha August 1983 issue RMcM might still compete enjoy able not. Just too much hassle philosophy competition states doesnt matter what rules because affected equally surface seems quite reasonable since cases least affected equally What considered however competition under some rules may enjoyable fly model airplanes competi tion enjoyable way practice sport hobby compete increase self-esteem via increasing inventory trophies analysis suggests us compete both reasons grow older us display diminished ego-satisfaction needs enjoyment endeavor becomes increasingly important Eventually may reach point no enjoyment remains just quit because cost has gone too high cost mean dollar-cost cost terms energy time mental anguish course replace anguish enjoyment becomes plus negative cost extreme know fliera fierce competitorwho has openly stated likes exceedingly difficult contest conditions best reason others become discouraged drop out thereby crease chances winning. wish have rules reflect philosophy Though avid trophy-hound youth law diminishing returns set about 20 years ago new trophy did less ny ego before Soon afterthis sport flying largely replaced competition simply because fun Deep heart Texas wide-open spaces best FF field Houston area half-hour drive southeast Exxon site Although nearly mile square Its punctuated oil-well rigs tanks trees cattle power lines 4-ft brush wild bean stalks photo taken mid-field Over freeway gone Too small Category Ill ratio-scoring would work I1 ou UJ1 oo11 76 Model Aviation Ron St Jean wanted build couple airplanes test out new FF competition concept called 6Xand forgot quit St Jeans SPC construction Hell talk about 6X September issue Heres what beginners FF Gas model might look likebut experts would have restrained competing against ginners order allow type new event effective 1 new type flight card would needed ratioscoring Heres example what completed would look like after flights made scoring completed now 60 years age Im still active flier its just Im no longer active competitor fly Free Flight now adjust engine runs dethermalizers fit field Im flying inand existing wind well current competition rules such fine-tuning adjust factors conditions change during day possible Conse quently risk loss damage models increasesand risk increases enjoy ment decreases purpose engage nitpicking existing rules rather seek best philosophy guide us rules-changes additions Should same guides fierce competitor mentioned earlier should something else deliberately set out make contest conditions difficult possible what will eventually happen numbers modelers competing Will left few fierce competitors rest have switched sport flying another hobby what want flying model airplanes goad thing people should instead carefully consider adopt rules will encourage competition rather discouraging Cannot principle maximizing competitive enjoy ment used rules deliberations Should new philosophy wish share hobby/sport others possible should give place thought special beginners events Beginners events AMA has upon several occasions established special events begin ners Junior/Senior/Open age classifi cations mindbut failed recognize some 1 3-year-olds experts 30-year-olds beginners RC concept having several skill categories went far towards popularizing Pattern events As became winner less-skilled category ad vanced next higher category skill FF Indoor events however focus attention has upon simplifying models flown require less skill build As result same experts win advanced events also win beginners events same result has come about Outdoor FF Rubber events focus has also upon model simplification Current efforts simplify special FF Gas events going same direction Clearly Free Flighters need learn lessons RCers can teach Based upon AMA history plus little logic would recommend following considered structuring special beginners events 1 Reducing building flying skill-require ments will certainly permit individuals construct special models never has anything wrong concept except itself incomplete 2 Because beginners youngsters small amount cash consideration should given cost-minimization might join fun 3 Experts must kept flying begin ners events since beginner still hasnt ghost chance winning against experts way doing have parallel begin ners experts events allow contestant enter thembut both reason AMA Delta Dart program successful three ideas incorporated just shame no intermediate event kids could advance less competition regular AMA competition events better flight limit FF Gas During first two decades what now call Free Flight Gas no such thing flight limit made 43-minute in-sight flight given 43 minutes credit Eventually ever became obvious something done about situation key made first flight limit feasible invention practical dether malizers introduction 10-minute limit late Forties fewer lost models because fewer drifted off field still too 10-minute limit reduced first six five minutes proved inadequate now have separate categories three- two-minute limits shrinkingand outright disappear anceof suitable Free Flight fields popu lation United States grew small-field problem never went away just became intense time bad now Continued page 174 July1987 77 lsthlswhat happened toyouroid Free Flightfleld tooThls wide-open spaces West know Ahi greatopen spaces FarWest Just rightfor endless FF right Well Ron says field light-colored area about 35 60 milesadequate forfive-minute flights mornings calm marginal two minutes windy afternoons ratioscoring competition scheme would permit used contests flight beyond cleared area will amid modal-eating sagebrush Heyl likethe early days Using small syringe eyedropper fuel tank largeronetoflil itallowafor reasonable control ofenglnerunswithouttheneedfora timerespecially tanks call brated markings visible Using competition would feasible ratio-scoring used Send SSAE ton catalo0 sheet nor complete line MACHINE SHOP SUPPLIES ING MACNINES LATHES BLUtA1kE S []o/ MACHINORY AND tOOLS INCPer n WV2002e304002 3030CnIng 0100 Avianlon IICMedelr SPECIAL MEl 104gb PHE drIve bole Save Over H AMERICAN AIRCRAFT MUSEUM GUIDE WhatWhere 1987 Edition MORE $975 US Postage Paid Checks MOs BrucelBeeson Publishers 2428 East 86th Place Tulsa OK 74105 masking tape model parts laid place rear boom segment longer tail boom stand might have required support front end careful adjustment height position raw ends boom mated repaired whole process repair including setup stands took about 20 minutes Incidentally because built-up boom could repaired precisely model trim still right after repair Another photo shows installing tail bracing using tail boom stand stabilize boom reduce handling stress Next time bracing schemes promise Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/St Jean Continued page 77 fliers could safely make two-minute flights best field available within 100-mile radius homes Should formulate new rules toy once again solve shrinking-FE-field problem need Category IV one-minute limit maybe Category V 30-second limit order contain models smallest fields Are categories type approach better way solve problem wish get new people EF Gas making attractive could done currently three field categories FE Gas times five size-classes times three age groups times two launching mediums HL ROW equais 90 records AMA keep track Isnt overly complicated especially view decreased interest FE Gas recent decades What would appropriate engine run 30-second limit Perhaps two seconds Use second flyoffs really want add another 60 slots record book Consider will totaily different alter native current method coping small-field problem Suppose instead went concept best measure FE Gas models performance ratio flight time divided engine-run time would numerically equivalent climb/glide ratio plus would easier calculate no subtraction would needed just division accomplished few seconds aid least-expensive pocket calculator Inexpensive watches also now available job can shut down end engine run accurate reading affecting measurement total time timer would record both engine run total time flight total-time/engine-run ratio would calculated official handling flight cards Finally average three still clinging three-official-flights concept flight-ratios would taken contestants final score event surface would appear just different way compute FE Gas flight scores however takes time analyze implications doing way. Please con sider following 1 would no longer need three four number separate flight-limit categories would job quite nicely would no penalty short flights fit small fields long engine runs correspondingly short ship will 180 seconds 10-second engine run should about 90 seconds five-second run scores would same 1800 case Conversely field wind should allow could score same 30-second run nine-minute flight 540 seconds 2 Contest Director must now declare contest Category II III before start competition Once started no changes category may made Ear West mornings calm afternoons windy Conceivably could use Small field Category until wind came up switch II 111but permitted suggested scoring method such ad justments changing wind conditions would automatic would made contest antsnot CD 3 Current rules favor marathonsfive 10 15 flights sometimes being required win suggested scoring method result division carried two decimal places ties would occur infrequently could broken using best poorest score three flights recognize suggested scoring method vastly different used during past half-century would require some getting used several questions come up Some questions will addressed below Qi should wish have 50 years tradition dumped different method scoring Al First doing would give greater relief flying smallest fields No longer would CD have guess what worst wind conditions would during day picking fixed competition category Instead would done contestants would lower engine runs thereby lowering flight times wind picked up would want such way keep models sight within available field Second fields under some conditions too small two-minute flight conditions came up fliers themselves could adjust shortening engine runs thereby reduce flight times degree needed keep losing models Third some modelers enjoy longer engine runs flights conditions permitted could have restructuring competition did preferred short engine runs flights could exercise preference tooboth under same rules As fourth consideration making change would reduce AMA Gas Head quarters record-homologation efforts onethird what present fifth point sophisticated costly often troublesome engine timers now re quired competitive nine-second engine run allowed get eight seconds Im handicapping myself 11% ratio scoring outlined would no such handicap fact may need timer fuel control alone being accurate enough Finally flyoff marathons would cease would no longer several ties due fliers achieving three mazes Thus contests could end sooner fliers could compete events instead being stuck marathon sake wioming single event would increase both competition entry fees QZ about delayed flights Would 40 seconds less still constitute attempt A2 No 40-second cutoff would no longer applicable would too long short flights too short long flights would suggest score 200 lower constitute delayed flight would retain same relationship traditional 40 seconds didto 20-second engine run Q3 seems despite ratio idea would chance losing models just win contest Lets say example field conditions such must get qulte high get lift strategy would use 20-second engine run get lift would require eight-minute flight get good score 2400 estimate ship could stay sight long would well off field Im willing take risks involved sol go A3 point well-taken want rules help prevent loss damage models some extra precautions order Id suggest rule book give CD authority spell out field rules needed solve type problem before happens such possibility OOS flights scored zero least made delayed flights should prob ably written rule book better example such field rule would something like flights terminating lake forest over fence residential district mountain swamp tree Kitty Litter factory etc shall scored zero Would provisions like succeed encouraging keep model within boundaries field Except OOS flights such field rules should option CD order best adjust rules local conditions temperaments 174 Model Aviation PUAUW DIESELS Englands Finest 049 35 R/C STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 UILD YOUR HELl TEST YOUR HELl AIR YOUR H ehighton Pa 18235 WRITE OR CALL FOR INFORMATION PRACTICAL SIZED GIANT Fibercl~ flnailings Canopies Available Plans sent Post-Paid within USA Send 5O Full Catalog Balsa Order Nick ZIroli 29 Edgar Dr Smithtown NYI 1787 USA ELS byNICKZIROLI Jets too 516-234-5038 Q4 subtitle suggests may better flight limit now used can find no such limit writings A4 Right no stated flight limit proposal limit variable depend ing upon conditions specific field specific time official flight made limit maximum flight time estimated possible under conditions given field rules combined desire preserve model intact limit such self-imposed flier will detennine dethermalizer timesetting turn will determine length engine run used flight would want use 30-second run two-minute flight nor could normally expect threesecond run produce eight minutes max imum score could come about using minimum engine run flight time estimated possible under conditions concluded September 1987 issue Ron St Jean 3394 Dale Dr Carson City NV 89701 Club PR/Kanyusik Continued page 84 Radio Control remembered rubber-powered models day Wakefield Copland model displayed struck familiar chord being closer models group known flying club plays key role Mankato areas annual Bend River Days Thats whenwe kick off summer flying season putting free fun-flya chance public see some well-built planes look great fly great summer flying season area short exacts price Battling gnats horseflies mosquitoes part package fact persistent mosquitos efforts draw blood models weve come call official state bird Fortunately iron-on coverings can patch up holes airborne again jiflr mall show spring itss well-stocked models members have built during frozen tundra sea son exhibit shows us advantage presenting image serious pro fessional group modelers Gary Endersbe represents club service club circuit flying field well always takes along examples planes has built show newcomers range Tipsy-Nipper L-4 Scale model quarter-scale Zlin Key City Bald Eagles ready assist young flier shows interest learn ing build fly Radio Control models helps us gamer new mem bers perpetuate interest sport Its happening everywhere Clubs over country getting involved communities finding rewards well worth efforts strong public relations program like Bald Eagles draws new members keeps club dynamic vigorous earns attention respect community Santos-Du mont/Kruse Continued page 88 Wrap Super Jet recommended basic construction rear fuselage side however begins taper sharply point might want use flexible cement like Ambroid since joint will have cracked order fuselage pulled together per top view As fuselage box being formed up dummy engine should glued place small drops Wilhold RC 56 before top crosspieces immediately above dummy engine glued po sition Also leave off cabane/landing gear struts until after fuselage cov ered fact should construct landing gear until after wings mounted cabane struts wings constructed identically /32 strip ribs 34a-sq stock should present no problems use 3/asq wood may seem bit unconventional readily available MicroX Prod ucts Inc PO Box 1063 Lorain OH 44055 somewhat larger 140-sq may substituted obtaining 34a-sq im practicable Using s-sq stock would im pose too great weight penalty however advised Notice center section bottom wing left uncovered flying surfaces including box kite front stabilizer covered side used MicroX Early Bird tissue has nice antique look although lightweight tissue would work Probably best way go canard through following sequence 1 Build top bottom surfaces 2 Cover bottom surface 3 Construct box shape air speak adding side supports diagonals vertical II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Raston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 I NameI II Address City/State ______________________________________ ZIP ______________ UModelAvietion 1810 Samuel Morse Dr Reston VA 22090I July1987 175 DC-31W Span$4200 F4U CORSAIR2% Span$3000 AeM5zERO2W 191 Span$3000 cuRTIsP402' — 194 Span$3000 AT-6TEXAN2A Span$3000 FBFBEARCAT2A Span$3000 FOKKERDR-127 Tripe$2700 Plans RK-200r RK-740 Ducted Fans Phantom35 span$1000 Viggan32 span$1000 F-iS36 span$1000 Plan canopy$1500
Edition: Model Aviation - 1987/07
Page Numbers: 76, 77, 174, 175
Free Flight Duration Ron St Jean first two guest columns longtime Free Flighter Ron St Jean months column departs usual type coverage provided MAs FF Duration columnists presents point view subject Free Flight rather having news items Wefound quite thought-provoking timely Ron submitted possible feature article decided share readers spot instead conclusion two-part column will September 1987 issue COMPETITION a philosophy Perhaps Im just getting too old am no longer interested attending model contests 1984 Reno Nats last attended sole purpose demonstrating SFC-built ships competitive SFC stands structureless foam composites method constructing Free Flight models developed pioneered Ron An article method appeared April 1982 issue small sport FF model using type construction Alpha August 1983 issue RMcM might still compete enjoy able not. Just too much hassle philosophy competition states doesnt matter what rules because affected equally surface seems quite reasonable since cases least affected equally What considered however competition under some rules may enjoyable fly model airplanes competi tion enjoyable way practice sport hobby compete increase self-esteem via increasing inventory trophies analysis suggests us compete both reasons grow older us display diminished ego-satisfaction needs enjoyment endeavor becomes increasingly important Eventually may reach point no enjoyment remains just quit because cost has gone too high cost mean dollar-cost cost terms energy time mental anguish course replace anguish enjoyment becomes plus negative cost extreme know fliera fierce competitorwho has openly stated likes exceedingly difficult contest conditions best reason others become discouraged drop out thereby crease chances winning. wish have rules reflect philosophy Though avid trophy-hound youth law diminishing returns set about 20 years ago new trophy did less ny ego before Soon afterthis sport flying largely replaced competition simply because fun Deep heart Texas wide-open spaces best FF field Houston area half-hour drive southeast Exxon site Although nearly mile square Its punctuated oil-well rigs tanks trees cattle power lines 4-ft brush wild bean stalks photo taken mid-field Over freeway gone Too small Category Ill ratio-scoring would work I1 ou UJ1 oo11 76 Model Aviation Ron St Jean wanted build couple airplanes test out new FF competition concept called 6Xand forgot quit St Jeans SPC construction Hell talk about 6X September issue Heres what beginners FF Gas model might look likebut experts would have restrained competing against ginners order allow type new event effective 1 new type flight card would needed ratioscoring Heres example what completed would look like after flights made scoring completed now 60 years age Im still active flier its just Im no longer active competitor fly Free Flight now adjust engine runs dethermalizers fit field Im flying inand existing wind well current competition rules such fine-tuning adjust factors conditions change during day possible Conse quently risk loss damage models increasesand risk increases enjoy ment decreases purpose engage nitpicking existing rules rather seek best philosophy guide us rules-changes additions Should same guides fierce competitor mentioned earlier should something else deliberately set out make contest conditions difficult possible what will eventually happen numbers modelers competing Will left few fierce competitors rest have switched sport flying another hobby what want flying model airplanes goad thing people should instead carefully consider adopt rules will encourage competition rather discouraging Cannot principle maximizing competitive enjoy ment used rules deliberations Should new philosophy wish share hobby/sport others possible should give place thought special beginners events Beginners events AMA has upon several occasions established special events begin ners Junior/Senior/Open age classifi cations mindbut failed recognize some 1 3-year-olds experts 30-year-olds beginners RC concept having several skill categories went far towards popularizing Pattern events As became winner less-skilled category ad vanced next higher category skill FF Indoor events however focus attention has upon simplifying models flown require less skill build As result same experts win advanced events also win beginners events same result has come about Outdoor FF Rubber events focus has also upon model simplification Current efforts simplify special FF Gas events going same direction Clearly Free Flighters need learn lessons RCers can teach Based upon AMA history plus little logic would recommend following considered structuring special beginners events 1 Reducing building flying skill-require ments will certainly permit individuals construct special models never has anything wrong concept except itself incomplete 2 Because beginners youngsters small amount cash consideration should given cost-minimization might join fun 3 Experts must kept flying begin ners events since beginner still hasnt ghost chance winning against experts way doing have parallel begin ners experts events allow contestant enter thembut both reason AMA Delta Dart program successful three ideas incorporated just shame no intermediate event kids could advance less competition regular AMA competition events better flight limit FF Gas During first two decades what now call Free Flight Gas no such thing flight limit made 43-minute in-sight flight given 43 minutes credit Eventually ever became obvious something done about situation key made first flight limit feasible invention practical dether malizers introduction 10-minute limit late Forties fewer lost models because fewer drifted off field still too 10-minute limit reduced first six five minutes proved inadequate now have separate categories three- two-minute limits shrinkingand outright disappear anceof suitable Free Flight fields popu lation United States grew small-field problem never went away just became intense time bad now Continued page 174 July1987 77 lsthlswhat happened toyouroid Free Flightfleld tooThls wide-open spaces West know Ahi greatopen spaces FarWest Just rightfor endless FF right Well Ron says field light-colored area about 35 60 milesadequate forfive-minute flights mornings calm marginal two minutes windy afternoons ratioscoring competition scheme would permit used contests flight beyond cleared area will amid modal-eating sagebrush Heyl likethe early days Using small syringe eyedropper fuel tank largeronetoflil itallowafor reasonable control ofenglnerunswithouttheneedfora timerespecially tanks call brated markings visible Using competition would feasible ratio-scoring used Send SSAE ton catalo0 sheet nor complete line MACHINE SHOP SUPPLIES ING MACNINES LATHES BLUtA1kE S []o/ MACHINORY AND tOOLS INCPer n WV2002e304002 3030CnIng 0100 Avianlon IICMedelr SPECIAL MEl 104gb PHE drIve bole Save Over H AMERICAN AIRCRAFT MUSEUM GUIDE WhatWhere 1987 Edition MORE $975 US Postage Paid Checks MOs BrucelBeeson Publishers 2428 East 86th Place Tulsa OK 74105 masking tape model parts laid place rear boom segment longer tail boom stand might have required support front end careful adjustment height position raw ends boom mated repaired whole process repair including setup stands took about 20 minutes Incidentally because built-up boom could repaired precisely model trim still right after repair Another photo shows installing tail bracing using tail boom stand stabilize boom reduce handling stress Next time bracing schemes promise Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/St Jean Continued page 77 fliers could safely make two-minute flights best field available within 100-mile radius homes Should formulate new rules toy once again solve shrinking-FE-field problem need Category IV one-minute limit maybe Category V 30-second limit order contain models smallest fields Are categories type approach better way solve problem wish get new people EF Gas making attractive could done currently three field categories FE Gas times five size-classes times three age groups times two launching mediums HL ROW equais 90 records AMA keep track Isnt overly complicated especially view decreased interest FE Gas recent decades What would appropriate engine run 30-second limit Perhaps two seconds Use second flyoffs really want add another 60 slots record book Consider will totaily different alter native current method coping small-field problem Suppose instead went concept best measure FE Gas models performance ratio flight time divided engine-run time would numerically equivalent climb/glide ratio plus would easier calculate no subtraction would needed just division accomplished few seconds aid least-expensive pocket calculator Inexpensive watches also now available job can shut down end engine run accurate reading affecting measurement total time timer would record both engine run total time flight total-time/engine-run ratio would calculated official handling flight cards Finally average three still clinging three-official-flights concept flight-ratios would taken contestants final score event surface would appear just different way compute FE Gas flight scores however takes time analyze implications doing way. Please con sider following 1 would no longer need three four number separate flight-limit categories would job quite nicely would no penalty short flights fit small fields long engine runs correspondingly short ship will 180 seconds 10-second engine run should about 90 seconds five-second run scores would same 1800 case Conversely field wind should allow could score same 30-second run nine-minute flight 540 seconds 2 Contest Director must now declare contest Category II III before start competition Once started no changes category may made Ear West mornings calm afternoons windy Conceivably could use Small field Category until wind came up switch II 111but permitted suggested scoring method such ad justments changing wind conditions would automatic would made contest antsnot CD 3 Current rules favor marathonsfive 10 15 flights sometimes being required win suggested scoring method result division carried two decimal places ties would occur infrequently could broken using best poorest score three flights recognize suggested scoring method vastly different used during past half-century would require some getting used several questions come up Some questions will addressed below Qi should wish have 50 years tradition dumped different method scoring Al First doing would give greater relief flying smallest fields No longer would CD have guess what worst wind conditions would during day picking fixed competition category Instead would done contestants would lower engine runs thereby lowering flight times wind picked up would want such way keep models sight within available field Second fields under some conditions too small two-minute flight conditions came up fliers themselves could adjust shortening engine runs thereby reduce flight times degree needed keep losing models Third some modelers enjoy longer engine runs flights conditions permitted could have restructuring competition did preferred short engine runs flights could exercise preference tooboth under same rules As fourth consideration making change would reduce AMA Gas Head quarters record-homologation efforts onethird what present fifth point sophisticated costly often troublesome engine timers now re quired competitive nine-second engine run allowed get eight seconds Im handicapping myself 11% ratio scoring outlined would no such handicap fact may need timer fuel control alone being accurate enough Finally flyoff marathons would cease would no longer several ties due fliers achieving three mazes Thus contests could end sooner fliers could compete events instead being stuck marathon sake wioming single event would increase both competition entry fees QZ about delayed flights Would 40 seconds less still constitute attempt A2 No 40-second cutoff would no longer applicable would too long short flights too short long flights would suggest score 200 lower constitute delayed flight would retain same relationship traditional 40 seconds didto 20-second engine run Q3 seems despite ratio idea would chance losing models just win contest Lets say example field conditions such must get qulte high get lift strategy would use 20-second engine run get lift would require eight-minute flight get good score 2400 estimate ship could stay sight long would well off field Im willing take risks involved sol go A3 point well-taken want rules help prevent loss damage models some extra precautions order Id suggest rule book give CD authority spell out field rules needed solve type problem before happens such possibility OOS flights scored zero least made delayed flights should prob ably written rule book better example such field rule would something like flights terminating lake forest over fence residential district mountain swamp tree Kitty Litter factory etc shall scored zero Would provisions like succeed encouraging keep model within boundaries field Except OOS flights such field rules should option CD order best adjust rules local conditions temperaments 174 Model Aviation PUAUW DIESELS Englands Finest 049 35 R/C STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 UILD YOUR HELl TEST YOUR HELl AIR YOUR H ehighton Pa 18235 WRITE OR CALL FOR INFORMATION PRACTICAL SIZED GIANT Fibercl~ flnailings Canopies Available Plans sent Post-Paid within USA Send 5O Full Catalog Balsa Order Nick ZIroli 29 Edgar Dr Smithtown NYI 1787 USA ELS byNICKZIROLI Jets too 516-234-5038 Q4 subtitle suggests may better flight limit now used can find no such limit writings A4 Right no stated flight limit proposal limit variable depend ing upon conditions specific field specific time official flight made limit maximum flight time estimated possible under conditions given field rules combined desire preserve model intact limit such self-imposed flier will detennine dethermalizer timesetting turn will determine length engine run used flight would want use 30-second run two-minute flight nor could normally expect threesecond run produce eight minutes max imum score could come about using minimum engine run flight time estimated possible under conditions concluded September 1987 issue Ron St Jean 3394 Dale Dr Carson City NV 89701 Club PR/Kanyusik Continued page 84 Radio Control remembered rubber-powered models day Wakefield Copland model displayed struck familiar chord being closer models group known flying club plays key role Mankato areas annual Bend River Days Thats whenwe kick off summer flying season putting free fun-flya chance public see some well-built planes look great fly great summer flying season area short exacts price Battling gnats horseflies mosquitoes part package fact persistent mosquitos efforts draw blood models weve come call official state bird Fortunately iron-on coverings can patch up holes airborne again jiflr mall show spring itss well-stocked models members have built during frozen tundra sea son exhibit shows us advantage presenting image serious pro fessional group modelers Gary Endersbe represents club service club circuit flying field well always takes along examples planes has built show newcomers range Tipsy-Nipper L-4 Scale model quarter-scale Zlin Key City Bald Eagles ready assist young flier shows interest learn ing build fly Radio Control models helps us gamer new mem bers perpetuate interest sport Its happening everywhere Clubs over country getting involved communities finding rewards well worth efforts strong public relations program like Bald Eagles draws new members keeps club dynamic vigorous earns attention respect community Santos-Du mont/Kruse Continued page 88 Wrap Super Jet recommended basic construction rear fuselage side however begins taper sharply point might want use flexible cement like Ambroid since joint will have cracked order fuselage pulled together per top view As fuselage box being formed up dummy engine should glued place small drops Wilhold RC 56 before top crosspieces immediately above dummy engine glued po sition Also leave off cabane/landing gear struts until after fuselage cov ered fact should construct landing gear until after wings mounted cabane struts wings constructed identically /32 strip ribs 34a-sq stock should present no problems use 3/asq wood may seem bit unconventional readily available MicroX Prod ucts Inc PO Box 1063 Lorain OH 44055 somewhat larger 140-sq may substituted obtaining 34a-sq im practicable Using s-sq stock would im pose too great weight penalty however advised Notice center section bottom wing left uncovered flying surfaces including box kite front stabilizer covered side used MicroX Early Bird tissue has nice antique look although lightweight tissue would work Probably best way go canard through following sequence 1 Build top bottom surfaces 2 Cover bottom surface 3 Construct box shape air speak adding side supports diagonals vertical II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Raston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 I NameI II Address City/State ______________________________________ ZIP ______________ UModelAvietion 1810 Samuel Morse Dr Reston VA 22090I July1987 175 DC-31W Span$4200 F4U CORSAIR2% Span$3000 AeM5zERO2W 191 Span$3000 cuRTIsP402' — 194 Span$3000 AT-6TEXAN2A Span$3000 FBFBEARCAT2A Span$3000 FOKKERDR-127 Tripe$2700 Plans RK-200r RK-740 Ducted Fans Phantom35 span$1000 Viggan32 span$1000 F-iS36 span$1000 Plan canopy$1500
Edition: Model Aviation - 1987/07
Page Numbers: 76, 77, 174, 175
Free Flight Duration Ron St Jean first two guest columns longtime Free Flighter Ron St Jean months column departs usual type coverage provided MAs FF Duration columnists presents point view subject Free Flight rather having news items Wefound quite thought-provoking timely Ron submitted possible feature article decided share readers spot instead conclusion two-part column will September 1987 issue COMPETITION a philosophy Perhaps Im just getting too old am no longer interested attending model contests 1984 Reno Nats last attended sole purpose demonstrating SFC-built ships competitive SFC stands structureless foam composites method constructing Free Flight models developed pioneered Ron An article method appeared April 1982 issue small sport FF model using type construction Alpha August 1983 issue RMcM might still compete enjoy able not. Just too much hassle philosophy competition states doesnt matter what rules because affected equally surface seems quite reasonable since cases least affected equally What considered however competition under some rules may enjoyable fly model airplanes competi tion enjoyable way practice sport hobby compete increase self-esteem via increasing inventory trophies analysis suggests us compete both reasons grow older us display diminished ego-satisfaction needs enjoyment endeavor becomes increasingly important Eventually may reach point no enjoyment remains just quit because cost has gone too high cost mean dollar-cost cost terms energy time mental anguish course replace anguish enjoyment becomes plus negative cost extreme know fliera fierce competitorwho has openly stated likes exceedingly difficult contest conditions best reason others become discouraged drop out thereby crease chances winning. wish have rules reflect philosophy Though avid trophy-hound youth law diminishing returns set about 20 years ago new trophy did less ny ego before Soon afterthis sport flying largely replaced competition simply because fun Deep heart Texas wide-open spaces best FF field Houston area half-hour drive southeast Exxon site Although nearly mile square Its punctuated oil-well rigs tanks trees cattle power lines 4-ft brush wild bean stalks photo taken mid-field Over freeway gone Too small Category Ill ratio-scoring would work I1 ou UJ1 oo11 76 Model Aviation Ron St Jean wanted build couple airplanes test out new FF competition concept called 6Xand forgot quit St Jeans SPC construction Hell talk about 6X September issue Heres what beginners FF Gas model might look likebut experts would have restrained competing against ginners order allow type new event effective 1 new type flight card would needed ratioscoring Heres example what completed would look like after flights made scoring completed now 60 years age Im still active flier its just Im no longer active competitor fly Free Flight now adjust engine runs dethermalizers fit field Im flying inand existing wind well current competition rules such fine-tuning adjust factors conditions change during day possible Conse quently risk loss damage models increasesand risk increases enjoy ment decreases purpose engage nitpicking existing rules rather seek best philosophy guide us rules-changes additions Should same guides fierce competitor mentioned earlier should something else deliberately set out make contest conditions difficult possible what will eventually happen numbers modelers competing Will left few fierce competitors rest have switched sport flying another hobby what want flying model airplanes goad thing people should instead carefully consider adopt rules will encourage competition rather discouraging Cannot principle maximizing competitive enjoy ment used rules deliberations Should new philosophy wish share hobby/sport others possible should give place thought special beginners events Beginners events AMA has upon several occasions established special events begin ners Junior/Senior/Open age classifi cations mindbut failed recognize some 1 3-year-olds experts 30-year-olds beginners RC concept having several skill categories went far towards popularizing Pattern events As became winner less-skilled category ad vanced next higher category skill FF Indoor events however focus attention has upon simplifying models flown require less skill build As result same experts win advanced events also win beginners events same result has come about Outdoor FF Rubber events focus has also upon model simplification Current efforts simplify special FF Gas events going same direction Clearly Free Flighters need learn lessons RCers can teach Based upon AMA history plus little logic would recommend following considered structuring special beginners events 1 Reducing building flying skill-require ments will certainly permit individuals construct special models never has anything wrong concept except itself incomplete 2 Because beginners youngsters small amount cash consideration should given cost-minimization might join fun 3 Experts must kept flying begin ners events since beginner still hasnt ghost chance winning against experts way doing have parallel begin ners experts events allow contestant enter thembut both reason AMA Delta Dart program successful three ideas incorporated just shame no intermediate event kids could advance less competition regular AMA competition events better flight limit FF Gas During first two decades what now call Free Flight Gas no such thing flight limit made 43-minute in-sight flight given 43 minutes credit Eventually ever became obvious something done about situation key made first flight limit feasible invention practical dether malizers introduction 10-minute limit late Forties fewer lost models because fewer drifted off field still too 10-minute limit reduced first six five minutes proved inadequate now have separate categories three- two-minute limits shrinkingand outright disappear anceof suitable Free Flight fields popu lation United States grew small-field problem never went away just became intense time bad now Continued page 174 July1987 77 lsthlswhat happened toyouroid Free Flightfleld tooThls wide-open spaces West know Ahi greatopen spaces FarWest Just rightfor endless FF right Well Ron says field light-colored area about 35 60 milesadequate forfive-minute flights mornings calm marginal two minutes windy afternoons ratioscoring competition scheme would permit used contests flight beyond cleared area will amid modal-eating sagebrush Heyl likethe early days Using small syringe eyedropper fuel tank largeronetoflil itallowafor reasonable control ofenglnerunswithouttheneedfora timerespecially tanks call brated markings visible Using competition would feasible ratio-scoring used Send SSAE ton catalo0 sheet nor complete line MACHINE SHOP SUPPLIES ING MACNINES LATHES BLUtA1kE S []o/ MACHINORY AND tOOLS INCPer n WV2002e304002 3030CnIng 0100 Avianlon IICMedelr SPECIAL MEl 104gb PHE drIve bole Save Over H AMERICAN AIRCRAFT MUSEUM GUIDE WhatWhere 1987 Edition MORE $975 US Postage Paid Checks MOs BrucelBeeson Publishers 2428 East 86th Place Tulsa OK 74105 masking tape model parts laid place rear boom segment longer tail boom stand might have required support front end careful adjustment height position raw ends boom mated repaired whole process repair including setup stands took about 20 minutes Incidentally because built-up boom could repaired precisely model trim still right after repair Another photo shows installing tail bracing using tail boom stand stabilize boom reduce handling stress Next time bracing schemes promise Bud Tenny PO Box 545 Richardson TX 75080 FF Duration/St Jean Continued page 77 fliers could safely make two-minute flights best field available within 100-mile radius homes Should formulate new rules toy once again solve shrinking-FE-field problem need Category IV one-minute limit maybe Category V 30-second limit order contain models smallest fields Are categories type approach better way solve problem wish get new people EF Gas making attractive could done currently three field categories FE Gas times five size-classes times three age groups times two launching mediums HL ROW equais 90 records AMA keep track Isnt overly complicated especially view decreased interest FE Gas recent decades What would appropriate engine run 30-second limit Perhaps two seconds Use second flyoffs really want add another 60 slots record book Consider will totaily different alter native current method coping small-field problem Suppose instead went concept best measure FE Gas models performance ratio flight time divided engine-run time would numerically equivalent climb/glide ratio plus would easier calculate no subtraction would needed just division accomplished few seconds aid least-expensive pocket calculator Inexpensive watches also now available job can shut down end engine run accurate reading affecting measurement total time timer would record both engine run total time flight total-time/engine-run ratio would calculated official handling flight cards Finally average three still clinging three-official-flights concept flight-ratios would taken contestants final score event surface would appear just different way compute FE Gas flight scores however takes time analyze implications doing way. Please con sider following 1 would no longer need three four number separate flight-limit categories would job quite nicely would no penalty short flights fit small fields long engine runs correspondingly short ship will 180 seconds 10-second engine run should about 90 seconds five-second run scores would same 1800 case Conversely field wind should allow could score same 30-second run nine-minute flight 540 seconds 2 Contest Director must now declare contest Category II III before start competition Once started no changes category may made Ear West mornings calm afternoons windy Conceivably could use Small field Category until wind came up switch II 111but permitted suggested scoring method such ad justments changing wind conditions would automatic would made contest antsnot CD 3 Current rules favor marathonsfive 10 15 flights sometimes being required win suggested scoring method result division carried two decimal places ties would occur infrequently could broken using best poorest score three flights recognize suggested scoring method vastly different used during past half-century would require some getting used several questions come up Some questions will addressed below Qi should wish have 50 years tradition dumped different method scoring Al First doing would give greater relief flying smallest fields No longer would CD have guess what worst wind conditions would during day picking fixed competition category Instead would done contestants would lower engine runs thereby lowering flight times wind picked up would want such way keep models sight within available field Second fields under some conditions too small two-minute flight conditions came up fliers themselves could adjust shortening engine runs thereby reduce flight times degree needed keep losing models Third some modelers enjoy longer engine runs flights conditions permitted could have restructuring competition did preferred short engine runs flights could exercise preference tooboth under same rules As fourth consideration making change would reduce AMA Gas Head quarters record-homologation efforts onethird what present fifth point sophisticated costly often troublesome engine timers now re quired competitive nine-second engine run allowed get eight seconds Im handicapping myself 11% ratio scoring outlined would no such handicap fact may need timer fuel control alone being accurate enough Finally flyoff marathons would cease would no longer several ties due fliers achieving three mazes Thus contests could end sooner fliers could compete events instead being stuck marathon sake wioming single event would increase both competition entry fees QZ about delayed flights Would 40 seconds less still constitute attempt A2 No 40-second cutoff would no longer applicable would too long short flights too short long flights would suggest score 200 lower constitute delayed flight would retain same relationship traditional 40 seconds didto 20-second engine run Q3 seems despite ratio idea would chance losing models just win contest Lets say example field conditions such must get qulte high get lift strategy would use 20-second engine run get lift would require eight-minute flight get good score 2400 estimate ship could stay sight long would well off field Im willing take risks involved sol go A3 point well-taken want rules help prevent loss damage models some extra precautions order Id suggest rule book give CD authority spell out field rules needed solve type problem before happens such possibility OOS flights scored zero least made delayed flights should prob ably written rule book better example such field rule would something like flights terminating lake forest over fence residential district mountain swamp tree Kitty Litter factory etc shall scored zero Would provisions like succeed encouraging keep model within boundaries field Except OOS flights such field rules should option CD order best adjust rules local conditions temperaments 174 Model Aviation PUAUW DIESELS Englands Finest 049 35 R/C STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 UILD YOUR HELl TEST YOUR HELl AIR YOUR H ehighton Pa 18235 WRITE OR CALL FOR INFORMATION PRACTICAL SIZED GIANT Fibercl~ flnailings Canopies Available Plans sent Post-Paid within USA Send 5O Full Catalog Balsa Order Nick ZIroli 29 Edgar Dr Smithtown NYI 1787 USA ELS byNICKZIROLI Jets too 516-234-5038 Q4 subtitle suggests may better flight limit now used can find no such limit writings A4 Right no stated flight limit proposal limit variable depend ing upon conditions specific field specific time official flight made limit maximum flight time estimated possible under conditions given field rules combined desire preserve model intact limit such self-imposed flier will detennine dethermalizer timesetting turn will determine length engine run used flight would want use 30-second run two-minute flight nor could normally expect threesecond run produce eight minutes max imum score could come about using minimum engine run flight time estimated possible under conditions concluded September 1987 issue Ron St Jean 3394 Dale Dr Carson City NV 89701 Club PR/Kanyusik Continued page 84 Radio Control remembered rubber-powered models day Wakefield Copland model displayed struck familiar chord being closer models group known flying club plays key role Mankato areas annual Bend River Days Thats whenwe kick off summer flying season putting free fun-flya chance public see some well-built planes look great fly great summer flying season area short exacts price Battling gnats horseflies mosquitoes part package fact persistent mosquitos efforts draw blood models weve come call official state bird Fortunately iron-on coverings can patch up holes airborne again jiflr mall show spring itss well-stocked models members have built during frozen tundra sea son exhibit shows us advantage presenting image serious pro fessional group modelers Gary Endersbe represents club service club circuit flying field well always takes along examples planes has built show newcomers range Tipsy-Nipper L-4 Scale model quarter-scale Zlin Key City Bald Eagles ready assist young flier shows interest learn ing build fly Radio Control models helps us gamer new mem bers perpetuate interest sport Its happening everywhere Clubs over country getting involved communities finding rewards well worth efforts strong public relations program like Bald Eagles draws new members keeps club dynamic vigorous earns attention respect community Santos-Du mont/Kruse Continued page 88 Wrap Super Jet recommended basic construction rear fuselage side however begins taper sharply point might want use flexible cement like Ambroid since joint will have cracked order fuselage pulled together per top view As fuselage box being formed up dummy engine should glued place small drops Wilhold RC 56 before top crosspieces immediately above dummy engine glued po sition Also leave off cabane/landing gear struts until after fuselage cov ered fact should construct landing gear until after wings mounted cabane struts wings constructed identically /32 strip ribs 34a-sq stock should present no problems use 3/asq wood may seem bit unconventional readily available MicroX Prod ucts Inc PO Box 1063 Lorain OH 44055 somewhat larger 140-sq may substituted obtaining 34a-sq im practicable Using s-sq stock would im pose too great weight penalty however advised Notice center section bottom wing left uncovered flying surfaces including box kite front stabilizer covered side used MicroX Early Bird tissue has nice antique look although lightweight tissue would work Probably best way go canard through following sequence 1 Build top bottom surfaces 2 Cover bottom surface 3 Construct box shape air speak adding side supports diagonals vertical II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Raston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 I NameI II Address City/State ______________________________________ ZIP ______________ UModelAvietion 1810 Samuel Morse Dr Reston VA 22090I July1987 175 DC-31W Span$4200 F4U CORSAIR2% Span$3000 AeM5zERO2W 191 Span$3000 cuRTIsP402' — 194 Span$3000 AT-6TEXAN2A Span$3000 FBFBEARCAT2A Span$3000 FOKKERDR-127 Tripe$2700 Plans RK-200r RK-740 Ducted Fans Phantom35 span$1000 Viggan32 span$1000 F-iS36 span$1000 Plan canopy$1500