Radio Control Sport Aerobatics Ron Van Putte WHATS ALL THIS FUSS about normalizing case hadnt heard current argument Pattern whether normalize scores to determine winner contests USA Before get too far subject let review what normalizing its used Basically scores flier earns front set judges divided score best flight front judges multiplied 1000 Obviously theres flier involved best flier round front particular set judges gets 1000 points everyone else gets somewhat less After contest over two ways determine winner way use scores rounds highest total wins common way use throwaway flights count best three four flights best three five four six etc contests would best four six give equal exposure required normalize scores Some large contests two flight lines might have four rounds too would give equal exposure fuss Wont results same anyway Well fuss going because can make big difference Thanks Nats Pattern Chief Tabulator Mike Lauman figured final standings both ways Expert class Nats provides great example what normalizing can As can see results Table 1 Hank Cooper Expert winner Norm Staub fifth look what happens scores normalized using best three rounds Table 2 shows Norm Staub would have Expert class winner Hank Cooper itestant ~an Staub Vail Cooper Chale es Lewis would have third addition Charles Lewis would have gone second fifth way five rounds flown Nats because five judging sets gave fliers exposure front judging set Most contests have two flight lines number rounds necessary equal ex posure Lets take good look some advantages disadvantages normalizing can make some reasonable judgements about its use object Pattern judging determine best flier judges equal wouldnt make difference judged flier since thats case judges arent equal good comparison flying ability well fliers perform front same set judges normalizing used thats comparison made So whats problem setup Since normalizing cant done until fliers have flown front same set judges flying conditions can much different fliers small contest short rounds time span short flying conditions probably will much same fliers However large contest time span can enormous case 1986 Nats four days before fliers judged Table B 4 8500 0 8765 8375 8315 8365 ets 5 9791 judging sets flying conditions varied widely Natsfrom cool July Louisiana hot calm very windy Judges arent supposed feel heat wind theyre judging supposed compare maneuvers against standard flier has better chance perform maneuvers well against standard during calm conditions feels comfortable Normalizing takes away some advan tage real bamburner flier Thats what would have happened Hank Cooper normalizing used Hank 940 total score fifth round 36 points higher next best score round Normalizing has tendency out scores scores compared front same set judges rewards consistency normalizing would have given Expert class trophy Norm Staub instead Hank Cooper Judges dont award same scores last day contest first day Fliers tend get better contest goes judges also get lot easier means scores good Saturday would wiped out Sundays high scores using conventional way determining winner 52 Model Aviation ant oper Lewis Vail ThaIe n Staub Normalizing would alleviate inequity making days flying worth much anothers Typically contest will have two flight lines four rounds will flown Saturday two Sunday Contest Director smart will have equal exposure two rounds way scores can normalized twice Saturday once Sunday Since round worth 1000 points winner Saturdays scores cant overpowered Sundays flated judging Normalizing sounds pretty good far what about effect contestants cheating contestant cant affect relative position anyone himself can Yes canwith normalizing Dave Brown showed sample situation illustrated Table 3 scores shown four-round contest three con testants class Normalizing being used Just before flier C fly last round approached flier B offers him reward flies badly Lets take look possibilities flier C scores less 730 fourth round order finish B C scores 745 order B C ifhe gets 780 order C B gets 820 its C B Very interesting isnt way using conventional system scoring always beats B no matter what C does Obviously normalizing cant eliminate problems involved attempting determine really flew better encourage letters anyone has comments about use normalizing time Im side issue other either pro con arguments welcome other hand downwind turn isoh never mind LetRCMs Ken Willardmonitor downwind turn arguments now Have heard about 1987 Nats formed sources tell Lincoln NE front-running choice Chicopee MA 1430 miles Ft Walton Beach FL wonder far Lincoln NE Ron goes 1987 Nats hell learn answer question because thats Nats will held RAIcM Ed Izzo passing out flyers during Nats Third Annual RC World Flying Festival November 27-30 1986 Its billed manufacturers exhibition auction fly-in fun-fly rather contest will held beautiful RC World flying field south east Orlando youre interested write RC World Fliers Inc 2219 Mo-Ho Dr Orlando FL 32807 flyer way Ed thanked mentioning person invented foam wing dont really know cut first foam wing cut first 1966 must have done 20 years ago first time ever contestants Nats year engine noise level measured just before flight feared would take too long added about 10 seconds flight dont know what results rest fliers engine test results confusing told engine noise level varied during five rounds 94dB 101 dB What did different Almost nothingno kidding dont remember touching needle valve once may say 94 dB isnt really much different 101 dB difference 6 dB twice half noise depending Continued page 148 IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines lers bolt directly engine ust tube points bottom side cowl cone exhaust extension tubing included Easily made produce smoke avaIIe yosv hobby shop ORDER RRCT hnmedate shmsist ChecI MO Vbci MC COD accepted Add 52h0 tar IP& OO far C00 arId 6% sm tax far C mdsr MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage $695 ling per order CA residents add sales tax jIi m u m m 164 School St Daly CIty CA 94014 415 756-3400 Id REPLACEMENT PARTS FOR Kra ft Engine. Testor/ McCoy TaIpn 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catniog Available December 1986 53 B tor Bottom Tube JT-ENBENVA 60-aO-90-120 40 UP/INV ENG2700 JT-ENSENYA 60-80-90-120 4C UP/INVSIDE ENG2700 JT-ERBENYA R 120 Pc UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FC UP/IN VERTED/SIDE ENG3000 JT61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-61SMX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 60-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M2BMAX FS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX PS 120 UP/INVERTED/SIDE ENGINE2700 JT-S68SAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-56SSAnD PA 65 UP/INVERTED/SIDE ENGINE2000 JT-S2BSAflO PA 120 UPRIGHT/INVERTED ENGINE2700 JT-S2SSAITO PA 120 UP/INVERTED/SIDE ENGINE2700 RIL Industries ox 5654 dena CA 91107 Phone 8181 359-0016 Radio Technique/Myers Continued page 51 ailerons made plane lean little tried elevators power available enough loop tapped rudderand got 2 snap rolls before could get thumb back started adrenalin flowing Time land set ttle tried trim descent fell like rock After few attempts landed full back-stick about 80% throttle ending landing roll right feet spectators thought flies good Little did know Joe went modify airplane until flew like other always wished hadnt wanted keep plane aroundjust visiting hot shot pilots try seriously intend help someone learn fly RC should spend some time flying own airplane badly Out trim Push trims way end practice making Figure Eights crossing time point convenient cloud sky make some takeoffs landings still out trim good training preparation next student will show up plane cant trimmed flight Next same thing CG moved back until airplane almost unflyable CG moved far forward can barely take off good training teaches recognizeand deal withthe kind problems will face Just record have flown airplanes CG out front wing werent canards have flown CG behind 50% point much fun faced new model dont know should balance try 20% behind wing leading edge its biplane 20% behind leading edge top wing have dual-rate controls practice dual rate set minimum simulate in-flight failure servo Guess got idea prefer have too much control available first flights set up pushrods much possible within reason Beginners usually set up too little control dont know just Get throttle right before first flight best friend can throttle will kill engine command cant remember students have presented brand new engine brand new airplane would loop low throttle plus low trim keep doing New engines wont idle nervous student shuts off receiverjust before launching plane always produces crash has happened three times 30 years hate gadgets put switch inside airplane leave guess whether wire should pulled out pushed fly really must train ourselves wiggle control stick watch control surfaces respond before flight have train students same way Insist really believe should flying redundant radios Ive talking about last couple months wont happen until some manufacturers start offering packaged redundant systems Ask Ask dealer dont stock redundant radios Write manufacturers ask same question Theyll sell anything will buy well safer hope have found piece entertaining has started thinking about respon sibility accept offer become Instructor Pilot writing has worthwhile George M Myers 70 Froehlich Farm Rd Hicks yule NY 11801 RC Aerobatics/Van Putte Continued page 53 way went means 101 dB two times noise 94dB What does prove Maybe equipment needed calibrated often Perhaps engine different noise level weather hot cool Possibly operators read noise level wrong Ill interested hear what Howard Crispin Chairman AMA Sound Committee has say about sound measure ments 1986 Nats Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Soaring/Blakeslee Continued page 55 pressure wing plane will stable As CG moved farther forward stability increases stab must now work harder harder keep nose up PYLON FREE FLIGHT UC SPEED RACING COMBAT EPOXY-GLASS PROPS CONTINUOUS LENGTH AS LOW AS $125 EA FREE BROCHURE Div Pops Prop,IncJ// 709 Crescent Sunnyside WA 98944 509-837-5983 S aVO Old TII11qg 1niwteS RepfO6uctOIt P@~ IOV ee BENTOM N JR CAMPBELL IGENE DUBOIS GUILLOW- K&B- K&S L R st this. OMET- COVERITE COX DUBRO BUILT MODELS FAt INE FOX- GOLDBERG-GOLDEN AGE REPROspa PERFECT MAX PACTRA PECK-POLYMER R/N MODELS SEAGL STERLING- SULLIVAN R TIGRE TAFFINDER TELCO FLITE- TREXLERI WILLIAMS & OTHERS IESTES MODEL ROCKETSI II S.id $100 ie Cesh Check Stamps ition tabloid sire DISCOUNT Catalog tstationsover 700 Kits choose IEngine IMAILORDER PHONEORDER IN STOREI PENN VALLEY HOBBY CENTER IOver 600 items U7 W Main t LansdalslaAUI4I $200 current catalog 148 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunhird 10 Sunbird Jr youll find Sunhird perfect sport plane 3fl P RECISKN PROIUCTS INC 714 592-5144 511 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1986/12
Page Numbers: 52, 53, 148
Radio Control Sport Aerobatics Ron Van Putte WHATS ALL THIS FUSS about normalizing case hadnt heard current argument Pattern whether normalize scores to determine winner contests USA Before get too far subject let review what normalizing its used Basically scores flier earns front set judges divided score best flight front judges multiplied 1000 Obviously theres flier involved best flier round front particular set judges gets 1000 points everyone else gets somewhat less After contest over two ways determine winner way use scores rounds highest total wins common way use throwaway flights count best three four flights best three five four six etc contests would best four six give equal exposure required normalize scores Some large contests two flight lines might have four rounds too would give equal exposure fuss Wont results same anyway Well fuss going because can make big difference Thanks Nats Pattern Chief Tabulator Mike Lauman figured final standings both ways Expert class Nats provides great example what normalizing can As can see results Table 1 Hank Cooper Expert winner Norm Staub fifth look what happens scores normalized using best three rounds Table 2 shows Norm Staub would have Expert class winner Hank Cooper itestant ~an Staub Vail Cooper Chale es Lewis would have third addition Charles Lewis would have gone second fifth way five rounds flown Nats because five judging sets gave fliers exposure front judging set Most contests have two flight lines number rounds necessary equal ex posure Lets take good look some advantages disadvantages normalizing can make some reasonable judgements about its use object Pattern judging determine best flier judges equal wouldnt make difference judged flier since thats case judges arent equal good comparison flying ability well fliers perform front same set judges normalizing used thats comparison made So whats problem setup Since normalizing cant done until fliers have flown front same set judges flying conditions can much different fliers small contest short rounds time span short flying conditions probably will much same fliers However large contest time span can enormous case 1986 Nats four days before fliers judged Table B 4 8500 0 8765 8375 8315 8365 ets 5 9791 judging sets flying conditions varied widely Natsfrom cool July Louisiana hot calm very windy Judges arent supposed feel heat wind theyre judging supposed compare maneuvers against standard flier has better chance perform maneuvers well against standard during calm conditions feels comfortable Normalizing takes away some advan tage real bamburner flier Thats what would have happened Hank Cooper normalizing used Hank 940 total score fifth round 36 points higher next best score round Normalizing has tendency out scores scores compared front same set judges rewards consistency normalizing would have given Expert class trophy Norm Staub instead Hank Cooper Judges dont award same scores last day contest first day Fliers tend get better contest goes judges also get lot easier means scores good Saturday would wiped out Sundays high scores using conventional way determining winner 52 Model Aviation ant oper Lewis Vail ThaIe n Staub Normalizing would alleviate inequity making days flying worth much anothers Typically contest will have two flight lines four rounds will flown Saturday two Sunday Contest Director smart will have equal exposure two rounds way scores can normalized twice Saturday once Sunday Since round worth 1000 points winner Saturdays scores cant overpowered Sundays flated judging Normalizing sounds pretty good far what about effect contestants cheating contestant cant affect relative position anyone himself can Yes canwith normalizing Dave Brown showed sample situation illustrated Table 3 scores shown four-round contest three con testants class Normalizing being used Just before flier C fly last round approached flier B offers him reward flies badly Lets take look possibilities flier C scores less 730 fourth round order finish B C scores 745 order B C ifhe gets 780 order C B gets 820 its C B Very interesting isnt way using conventional system scoring always beats B no matter what C does Obviously normalizing cant eliminate problems involved attempting determine really flew better encourage letters anyone has comments about use normalizing time Im side issue other either pro con arguments welcome other hand downwind turn isoh never mind LetRCMs Ken Willardmonitor downwind turn arguments now Have heard about 1987 Nats formed sources tell Lincoln NE front-running choice Chicopee MA 1430 miles Ft Walton Beach FL wonder far Lincoln NE Ron goes 1987 Nats hell learn answer question because thats Nats will held RAIcM Ed Izzo passing out flyers during Nats Third Annual RC World Flying Festival November 27-30 1986 Its billed manufacturers exhibition auction fly-in fun-fly rather contest will held beautiful RC World flying field south east Orlando youre interested write RC World Fliers Inc 2219 Mo-Ho Dr Orlando FL 32807 flyer way Ed thanked mentioning person invented foam wing dont really know cut first foam wing cut first 1966 must have done 20 years ago first time ever contestants Nats year engine noise level measured just before flight feared would take too long added about 10 seconds flight dont know what results rest fliers engine test results confusing told engine noise level varied during five rounds 94dB 101 dB What did different Almost nothingno kidding dont remember touching needle valve once may say 94 dB isnt really much different 101 dB difference 6 dB twice half noise depending Continued page 148 IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines lers bolt directly engine ust tube points bottom side cowl cone exhaust extension tubing included Easily made produce smoke avaIIe yosv hobby shop ORDER RRCT hnmedate shmsist ChecI MO Vbci MC COD accepted Add 52h0 tar IP& OO far C00 arId 6% sm tax far C mdsr MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage $695 ling per order CA residents add sales tax jIi m u m m 164 School St Daly CIty CA 94014 415 756-3400 Id REPLACEMENT PARTS FOR Kra ft Engine. Testor/ McCoy TaIpn 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catniog Available December 1986 53 B tor Bottom Tube JT-ENBENVA 60-aO-90-120 40 UP/INV ENG2700 JT-ENSENYA 60-80-90-120 4C UP/INVSIDE ENG2700 JT-ERBENYA R 120 Pc UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FC UP/IN VERTED/SIDE ENG3000 JT61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-61SMX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 60-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M2BMAX FS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX PS 120 UP/INVERTED/SIDE ENGINE2700 JT-S68SAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-56SSAnD PA 65 UP/INVERTED/SIDE ENGINE2000 JT-S2BSAflO PA 120 UPRIGHT/INVERTED ENGINE2700 JT-S2SSAITO PA 120 UP/INVERTED/SIDE ENGINE2700 RIL Industries ox 5654 dena CA 91107 Phone 8181 359-0016 Radio Technique/Myers Continued page 51 ailerons made plane lean little tried elevators power available enough loop tapped rudderand got 2 snap rolls before could get thumb back started adrenalin flowing Time land set ttle tried trim descent fell like rock After few attempts landed full back-stick about 80% throttle ending landing roll right feet spectators thought flies good Little did know Joe went modify airplane until flew like other always wished hadnt wanted keep plane aroundjust visiting hot shot pilots try seriously intend help someone learn fly RC should spend some time flying own airplane badly Out trim Push trims way end practice making Figure Eights crossing time point convenient cloud sky make some takeoffs landings still out trim good training preparation next student will show up plane cant trimmed flight Next same thing CG moved back until airplane almost unflyable CG moved far forward can barely take off good training teaches recognizeand deal withthe kind problems will face Just record have flown airplanes CG out front wing werent canards have flown CG behind 50% point much fun faced new model dont know should balance try 20% behind wing leading edge its biplane 20% behind leading edge top wing have dual-rate controls practice dual rate set minimum simulate in-flight failure servo Guess got idea prefer have too much control available first flights set up pushrods much possible within reason Beginners usually set up too little control dont know just Get throttle right before first flight best friend can throttle will kill engine command cant remember students have presented brand new engine brand new airplane would loop low throttle plus low trim keep doing New engines wont idle nervous student shuts off receiverjust before launching plane always produces crash has happened three times 30 years hate gadgets put switch inside airplane leave guess whether wire should pulled out pushed fly really must train ourselves wiggle control stick watch control surfaces respond before flight have train students same way Insist really believe should flying redundant radios Ive talking about last couple months wont happen until some manufacturers start offering packaged redundant systems Ask Ask dealer dont stock redundant radios Write manufacturers ask same question Theyll sell anything will buy well safer hope have found piece entertaining has started thinking about respon sibility accept offer become Instructor Pilot writing has worthwhile George M Myers 70 Froehlich Farm Rd Hicks yule NY 11801 RC Aerobatics/Van Putte Continued page 53 way went means 101 dB two times noise 94dB What does prove Maybe equipment needed calibrated often Perhaps engine different noise level weather hot cool Possibly operators read noise level wrong Ill interested hear what Howard Crispin Chairman AMA Sound Committee has say about sound measure ments 1986 Nats Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Soaring/Blakeslee Continued page 55 pressure wing plane will stable As CG moved farther forward stability increases stab must now work harder harder keep nose up PYLON FREE FLIGHT UC SPEED RACING COMBAT EPOXY-GLASS PROPS CONTINUOUS LENGTH AS LOW AS $125 EA FREE BROCHURE Div Pops Prop,IncJ// 709 Crescent Sunnyside WA 98944 509-837-5983 S aVO Old TII11qg 1niwteS RepfO6uctOIt P@~ IOV ee BENTOM N JR CAMPBELL IGENE DUBOIS GUILLOW- K&B- K&S L R st this. OMET- COVERITE COX DUBRO BUILT MODELS FAt INE FOX- GOLDBERG-GOLDEN AGE REPROspa PERFECT MAX PACTRA PECK-POLYMER R/N MODELS SEAGL STERLING- SULLIVAN R TIGRE TAFFINDER TELCO FLITE- TREXLERI WILLIAMS & OTHERS IESTES MODEL ROCKETSI II S.id $100 ie Cesh Check Stamps ition tabloid sire DISCOUNT Catalog tstationsover 700 Kits choose IEngine IMAILORDER PHONEORDER IN STOREI PENN VALLEY HOBBY CENTER IOver 600 items U7 W Main t LansdalslaAUI4I $200 current catalog 148 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunhird 10 Sunbird Jr youll find Sunhird perfect sport plane 3fl P RECISKN PROIUCTS INC 714 592-5144 511 E Arrow Highway San Dimas CA 91773
Edition: Model Aviation - 1986/12
Page Numbers: 52, 53, 148
Radio Control Sport Aerobatics Ron Van Putte WHATS ALL THIS FUSS about normalizing case hadnt heard current argument Pattern whether normalize scores to determine winner contests USA Before get too far subject let review what normalizing its used Basically scores flier earns front set judges divided score best flight front judges multiplied 1000 Obviously theres flier involved best flier round front particular set judges gets 1000 points everyone else gets somewhat less After contest over two ways determine winner way use scores rounds highest total wins common way use throwaway flights count best three four flights best three five four six etc contests would best four six give equal exposure required normalize scores Some large contests two flight lines might have four rounds too would give equal exposure fuss Wont results same anyway Well fuss going because can make big difference Thanks Nats Pattern Chief Tabulator Mike Lauman figured final standings both ways Expert class Nats provides great example what normalizing can As can see results Table 1 Hank Cooper Expert winner Norm Staub fifth look what happens scores normalized using best three rounds Table 2 shows Norm Staub would have Expert class winner Hank Cooper itestant ~an Staub Vail Cooper Chale es Lewis would have third addition Charles Lewis would have gone second fifth way five rounds flown Nats because five judging sets gave fliers exposure front judging set Most contests have two flight lines number rounds necessary equal ex posure Lets take good look some advantages disadvantages normalizing can make some reasonable judgements about its use object Pattern judging determine best flier judges equal wouldnt make difference judged flier since thats case judges arent equal good comparison flying ability well fliers perform front same set judges normalizing used thats comparison made So whats problem setup Since normalizing cant done until fliers have flown front same set judges flying conditions can much different fliers small contest short rounds time span short flying conditions probably will much same fliers However large contest time span can enormous case 1986 Nats four days before fliers judged Table B 4 8500 0 8765 8375 8315 8365 ets 5 9791 judging sets flying conditions varied widely Natsfrom cool July Louisiana hot calm very windy Judges arent supposed feel heat wind theyre judging supposed compare maneuvers against standard flier has better chance perform maneuvers well against standard during calm conditions feels comfortable Normalizing takes away some advan tage real bamburner flier Thats what would have happened Hank Cooper normalizing used Hank 940 total score fifth round 36 points higher next best score round Normalizing has tendency out scores scores compared front same set judges rewards consistency normalizing would have given Expert class trophy Norm Staub instead Hank Cooper Judges dont award same scores last day contest first day Fliers tend get better contest goes judges also get lot easier means scores good Saturday would wiped out Sundays high scores using conventional way determining winner 52 Model Aviation ant oper Lewis Vail ThaIe n Staub Normalizing would alleviate inequity making days flying worth much anothers Typically contest will have two flight lines four rounds will flown Saturday two Sunday Contest Director smart will have equal exposure two rounds way scores can normalized twice Saturday once Sunday Since round worth 1000 points winner Saturdays scores cant overpowered Sundays flated judging Normalizing sounds pretty good far what about effect contestants cheating contestant cant affect relative position anyone himself can Yes canwith normalizing Dave Brown showed sample situation illustrated Table 3 scores shown four-round contest three con testants class Normalizing being used Just before flier C fly last round approached flier B offers him reward flies badly Lets take look possibilities flier C scores less 730 fourth round order finish B C scores 745 order B C ifhe gets 780 order C B gets 820 its C B Very interesting isnt way using conventional system scoring always beats B no matter what C does Obviously normalizing cant eliminate problems involved attempting determine really flew better encourage letters anyone has comments about use normalizing time Im side issue other either pro con arguments welcome other hand downwind turn isoh never mind LetRCMs Ken Willardmonitor downwind turn arguments now Have heard about 1987 Nats formed sources tell Lincoln NE front-running choice Chicopee MA 1430 miles Ft Walton Beach FL wonder far Lincoln NE Ron goes 1987 Nats hell learn answer question because thats Nats will held RAIcM Ed Izzo passing out flyers during Nats Third Annual RC World Flying Festival November 27-30 1986 Its billed manufacturers exhibition auction fly-in fun-fly rather contest will held beautiful RC World flying field south east Orlando youre interested write RC World Fliers Inc 2219 Mo-Ho Dr Orlando FL 32807 flyer way Ed thanked mentioning person invented foam wing dont really know cut first foam wing cut first 1966 must have done 20 years ago first time ever contestants Nats year engine noise level measured just before flight feared would take too long added about 10 seconds flight dont know what results rest fliers engine test results confusing told engine noise level varied during five rounds 94dB 101 dB What did different Almost nothingno kidding dont remember touching needle valve once may say 94 dB isnt really much different 101 dB difference 6 dB twice half noise depending Continued page 148 IN-COWL FOUR CYCLE MUFFLERS 61 120 engines Designed fit inside cowls limited space GHT INVERTED SIDE mounted engines lers bolt directly engine ust tube points bottom side cowl cone exhaust extension tubing included Easily made produce smoke avaIIe yosv hobby shop ORDER RRCT hnmedate shmsist ChecI MO Vbci MC COD accepted Add 52h0 tar IP& OO far C00 arId 6% sm tax far C mdsr MODEL MOTOR MUGTM high quality totally glazed ceramic engine mug must modeler Standing 51/2 inches tall large 10 oz capacity its real attention getter definite collectors piece years come Only Plus $200 postage $695 ling per order CA residents add sales tax jIi m u m m 164 School St Daly CIty CA 94014 415 756-3400 Id REPLACEMENT PARTS FOR Kra ft Engine. Testor/ McCoy TaIpn 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catniog Available December 1986 53 B tor Bottom Tube JT-ENBENVA 60-aO-90-120 40 UP/INV ENG2700 JT-ENSENYA 60-80-90-120 4C UP/INVSIDE ENG2700 JT-ERBENYA R 120 Pc UP/INVERTED ENGINE3000 JT-ERSENYA R 120 FC UP/IN VERTED/SIDE ENG3000 JT61BMAX PS 61 UPRIGHT/INVERTED ENGINE2000 JT-61SMX PS 61 UP/INVERTED/SIDE ENGINE2000 JT-MABMAX PS 60-90 UPRIGHT/INVERTED ENGINE2500 JT-MASMAX PS 80-90 UP/INVERTED/SIDE ENGINE2500 JT-M2BMAX FS 120 UPRIGHT/INVERTED ENGINE2700 JT-M2SMAX PS 120 UP/INVERTED/SIDE ENGINE2700 JT-S68SAITO PA 65 UPRIGHT/INVERTED ENGINE2000 JT-56SSAnD PA 65 UP/INVERTED/SIDE ENGINE2000 JT-S2BSAflO PA 120 UPRIGHT/INVERTED ENGINE2700 JT-S2SSAITO PA 120 UP/INVERTED/SIDE ENGINE2700 RIL Industries ox 5654 dena CA 91107 Phone 8181 359-0016 Radio Technique/Myers Continued page 51 ailerons made plane lean little tried elevators power available enough loop tapped rudderand got 2 snap rolls before could get thumb back started adrenalin flowing Time land set ttle tried trim descent fell like rock After few attempts landed full back-stick about 80% throttle ending landing roll right feet spectators thought flies good Little did know Joe went modify airplane until flew like other always wished hadnt wanted keep plane aroundjust visiting hot shot pilots try seriously intend help someone learn fly RC should spend some time flying own airplane badly Out trim Push trims way end practice making Figure Eights crossing time point convenient cloud sky make some takeoffs landings still out trim good training preparation next student will show up plane cant trimmed flight Next same thing CG moved back until airplane almost unflyable CG moved far forward can barely take off good training teaches recognizeand deal withthe kind problems will face Just record have flown airplanes CG out front wing werent canards have flown CG behind 50% point much fun faced new model dont know should balance try 20% behind wing leading edge its biplane 20% behind leading edge top wing have dual-rate controls practice dual rate set minimum simulate in-flight failure servo Guess got idea prefer have too much control available first flights set up pushrods much possible within reason Beginners usually set up too little control dont know just Get throttle right before first flight best friend can throttle will kill engine command cant remember students have presented brand new engine brand new airplane would loop low throttle plus low trim keep doing New engines wont idle nervous student shuts off receiverjust before launching plane always produces crash has happened three times 30 years hate gadgets put switch inside airplane leave guess whether wire should pulled out pushed fly really must train ourselves wiggle control stick watch control surfaces respond before flight have train students same way Insist really believe should flying redundant radios Ive talking about last couple months wont happen until some manufacturers start offering packaged redundant systems Ask Ask dealer dont stock redundant radios Write manufacturers ask same question Theyll sell anything will buy well safer hope have found piece entertaining has started thinking about respon sibility accept offer become Instructor Pilot writing has worthwhile George M Myers 70 Froehlich Farm Rd Hicks yule NY 11801 RC Aerobatics/Van Putte Continued page 53 way went means 101 dB two times noise 94dB What does prove Maybe equipment needed calibrated often Perhaps engine different noise level weather hot cool Possibly operators read noise level wrong Ill interested hear what Howard Crispin Chairman AMA Sound Committee has say about sound measure ments 1986 Nats Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Soaring/Blakeslee Continued page 55 pressure wing plane will stable As CG moved farther forward stability increases stab must now work harder harder keep nose up PYLON FREE FLIGHT UC SPEED RACING COMBAT EPOXY-GLASS PROPS CONTINUOUS LENGTH AS LOW AS $125 EA FREE BROCHURE Div Pops Prop,IncJ// 709 Crescent Sunnyside WA 98944 509-837-5983 S aVO Old TII11qg 1niwteS RepfO6uctOIt P@~ IOV ee BENTOM N JR CAMPBELL IGENE DUBOIS GUILLOW- K&B- K&S L R st this. OMET- COVERITE COX DUBRO BUILT MODELS FAt INE FOX- GOLDBERG-GOLDEN AGE REPROspa PERFECT MAX PACTRA PECK-POLYMER R/N MODELS SEAGL STERLING- SULLIVAN R TIGRE TAFFINDER TELCO FLITE- TREXLERI WILLIAMS & OTHERS IESTES MODEL ROCKETSI II S.id $100 ie Cesh Check Stamps ition tabloid sire DISCOUNT Catalog tstationsover 700 Kits choose IEngine IMAILORDER PHONEORDER IN STOREI PENN VALLEY HOBBY CENTER IOver 600 items U7 W Main t LansdalslaAUI4I $200 current catalog 148 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunhird 10 Sunbird Jr youll find Sunhird perfect sport plane 3fl P RECISKN PROIUCTS INC 714 592-5144 511 E Arrow Highway San Dimas CA 91773