Contml Line Speed Gene Hem pel BAN MODELS Now have tention please read first time modelers have taken reasonable effort write con cerning editorial written AMA President John C Grigg Editors note August 1984 AMA News Presidents Corner item titled Noise Standards letters phone calls have received editorial covers noise pollu tion model engines have opportunity either read editorial converse John concerning sub ject appears everyone concerned about equipment becoming obsolete suggestion would write John Griggdo phoneconcerning noise problem am sure some justification writing editorial would like apologize John Hunton Annandale VA giving him credit takeoff dolly design appeared August 1984 issue Speed col umn design works very well asymmetrical model simple construct recent increased interest Speed generating some activity few local Texas Speed modelers held first Speed meet June 9 10 en joyable visit Speed modelers dropped out Joe McKinzie Ft Worth teamed George Aldrich early Sixties Also Tom Blankmann Coppell TX active Speed modeler St Louis area early Seventies Dimmitt Perkins Houston Jet model couldnt get engine run continuously tried get B Speed model release dolly fastest race car wings speeds nothing fantastic did have plenty eat BS session enjoyed reading through correspon dence modelers came across letter some very interesting thoughts Dan Burdick Seat tle WA reads follows have model airplanes off around 20 years Over years Ive also studied modelers attitudes have changed toward wonderful sport Sorry say loaf bread about 40 50 cents back early Sixties 049 Control Line kit $495 Also world tension uptight 10- 12-year-old boy very excited hear buzzing model engine local school ground would almost anytling hang handle background pretty shaking experience local flying field some time ago must relate fly Formula 40 speed am very much love Control Line models kind Anyway day testing some rework just landed young boys appeared 11-13 age group came walking over see what going kid said Gee sure noisy very angry look face sudden says bad would hurt Continued page 168 Gene Hempel trying get Winged race car going recent Speea meet inc crowa U Consists U R Dimmift Perkins holding starter Jo McKinzie supervising Gene Hempel starting K&B 29-powered model Tom Blankmann helping Joe supervise right Gene has launched McKlnzie looks hes about grab battery Gene didnt say piloting 80 Model Aviation iantastIcl Inc nnique inventea DY Jim gntingaie sever Tears ago best worlds black long pipe hot days power polished shorter cool days rpm long pipe good takeoff shorter speed runand get two chances good needle setting its perfect boats too powerpipe turns rpm-pipe straighaway its also very helpful filers just dont know what length pipe runi Now maybe need third for. mymEET PIXr BREAK THE 2-METER PERFORMANCE BARRIER LIGHTWEIGHTSOLID CORE CONSTRUCTIONEPPLER 214 AIRFOIL AILERONS80 OTGREE FLAPS elevator compensatorWINOSONG STYLE FUSELAGECLEAN QUIET SNOOTHTRAC KING AND EFFICIENT Pixy peer multi-task thermal competition pure myna mite fly v slope thermal aerobatic displays will make heart stop 1 hr VHS VIDEO TAPE showing OUR PLANES IN ACTION CONTROL TEMS LINKAGES APPLICATION FIBERGLASS FIN/TURTLE-DECK ano H WING BUILDING SEQUENCE Send $25 $20 deposit/$5 ship/hanaling 2 stamps complete catalog f mar multichannel ghders giving specifications - armance control configurations construction kit/parts price list induong $19995NEW Camano 100 $15995 BR ND NEW Pisy $14995 OBSON DESIGNS SW Cainano Drive Camano Island WA 98292 plane system no RF signal used transmitted series en coded electrical pulses sent up lines model article will detailing step-by-step construction system units rather will give overview put together operates will have assume anyone tempting project either familiar electronic component wiring use printed circuit boards knows someone does can help accompanying schematics show wiring encoder decoder units four types input circuitry used Clancy P-38 shown accompa nying photo first input th en coder Pin-l represented R-l 5K pot used fully-proportional control desired could models throttle control operating cooler doors etc S-2 SPDT switch arrange ment Input 2 used desire set fixed position item after its operation such flaps 5-2 position shown schematic flaps would up adjustment R-2 5K pot used define posi tion 5-2 operated its other position flaps down position determined adjusting R-3 5K pot third input Pin 3 controlled set fixed resistors S-3 singlepole push-button switch used Clancy operating brakes case operation 5-3 used applying brakes open position allows servo return fixed position leases brakes final fourth input shown 5-4 single-pole three-position rotary-type switch used combination fixed resistors R-7 R-9 1K pot R-8 operating landing gear landing lights schematic shows S-4 posi tion would have landing gear fully retracted center position allows landing gear operate fulldown position point retract servo has traveled something less its full travel point servo travel controlled R-l pot adjustment 5-4 operated its third position left schematic retract servo allowed move its maximum travel point used trip switch turns planes landing lights inputs shown examples types can used en coder can design own inputs long voltage-divider circuit least 5000 ohms between Pin 15 regu lated lts Pin 8 return side battery provides volts input pins number through seven encoder parts required construc tion system generally available electronic parts supply shops fixed resistors /4-watt size pots R-l 2 3 8 miniature size have adjusting shafts R-l 14 can PC printed circuit type capacitors ceramic type need have voltage ratings much higher 12 volts decide build system will need printed circuit board about four-inch square two 16-pin chip sockets some light hookup wire switches activate encoder inputs functions wish perform model case Clancys system en coder parts mounted piece PC board measuring 1 x 15 inches mounted inside control handle along pot controls switches nine-volt transistor battery used powering encoder will note accompanying photo Clancys homemade control handle has two lines because chose control throt tles model electronically rather use normal three-line bellcrank system Using two lines permitted him use heavy nylon bellcrank elevator control same time provide insulation control lines model end control lines handle end insulated another being attached insulating material such piece heavy nylon fiberglass fastened rear handle Control lines used Clancy made Berkley Co 120-lb-test nylon-covered salt water leader called Steelon 027-in thick constructing decoder size PC board critical will mounted somewhere model will have provide appropriate space servos 48 volt 55OmAh Ni-Cd power supply S6me last thoughts After units built powered up couple minor adjustments made Start measuring voltage encoder pin 13 Adjust pot R-14 until voltage pin 12 /2 voltage mesured pin 13 Next adjust pot R-l Ito center servos R-14 may changed slightly R-l readjusted center servos less servo travel desired Please note positive-pulse servos should used system Clancy has indicated will pro vide help can anyone builds system encounters prob lems requests send SASE self addressed stamped envelope questions Send letters Clancy Arnold 5434 Purpura Dr Lawrence IN 46236 Good Luck system Please send items CL Scale Bill Boss 77-06 269th St New Hyde Park NY 11040 CL SpeedlHem psi Continued page 80 stepped damn plane said Id turn ya over knee tell parents Well gave model cou ple dirty looks said Yeah would almost worth End story Gene dont know what percent kids like shock quite some time Anyway kind happening indication youngsters attitudes today no wonder sport serious danger also feel Control Line should publicized pro motioncarried out Another problem needs dealt RC can young people get information CL magazines print 3/4 RC / CL may much Lets face Control Line becoming spe cialized sport what 20-25 168 Model Aviation ENEAE~ hinge allows control D I1IIVLV& rface removal tools lost puns problems fr PATENT painting repair PENDINGcovering transportation storage etc Scale Appearance InsertSimple Assembly 3 SIZES No Slots No Pins Rotate 38-6 $445 12-6 $495 years ago Bread now $100 loaf 049 kit out world So comments Print wish Some recent correspondence has quite interesting thoughtprovokingbut cant print Dont let deter sending observations opinions Speed need inputs modelers possible can best figure out what readers may interested Keep cards letters photos coming Gene Hempel 301 N Yale Dr Gar land TX 75042 CL AerobatlcslFancher Continued page 78 applied force such manner cause yaw right air craft pitched up left pitched down thereby increasing line ten sion insides decreasing outsides examples column will consider model flying normal anti-clock wise flight battle insidious force Al devised two gimmicks First famous Rabe Rudder connected elevator apply right rudder outside maneuvers second front-Up leadout point rear Down leadout intent both cause ship yaw away pilot outside maneuvers thus neutral ize evil precession First let make clear defer no admiration accomplishments Al Rabe words Frank Sinatra did way way best ways ever once mentioned Bill Werwage handful Stunt Masters feel Al sits very comfortably same small list However. due respect Al gyroscopic precession effects real phenomenon way prop weighing under half ounce spinning modest rpms simply isnt significant trim problem three-to-four-pound mass moving 50 60 mph estimation classic example right solution wrong problem Als ships did have unique trim prob lem both devices clever solution However wasnt gyro scopic precession wit Als semiscale ships built substantial amounts dihedral Stunt Glossary Dihedral design concept wherein wing tips higher root wing Dihedral makes aircraft stable roll axis ie wing drops its ver tical lift component greater raised wing will therefore natu rally raise low wing thereby maintain ing wings-level attitude wing dihedral inherently stable posi tive-G maneuvers ie insides inherent ly unstable negative-G maneuvers ie outsides instability unpre dictable may manifest itself roll either left right What both Rabe Rudder front-Up line accomplished make inevitable roll predictable advan tageous Control Line pilot caus ing yaw accompanying roll away circle As further evidence devices best reserved bentwing birds reread Als own Mustunt arti cle American Aircraft Modeler February 1973 wherein has endless trouble making blamed rudder work basic simple straight-winged Stunter essence ends up almost no movement rudder Nuff said Well no really cause what really wanted discuss P Factor What may well asking yourself P-Factor direct answer discussion P-Factor reason should normally use rear Up line consider wig gly rudder should hook up work opposite Als ie right rudder insides Any real plane pilots addition Stunt jockeys probably nodding knowingly yourselves light dawns Please refer drawings RIDDE042 UL9LL R 1mm thick Boxed 16 oz rubber per boxSzes Price $1250 per box ppd USA32 _______1 1' TILKA ________8 WAKEFIEL $3895p.UPEnslsh3 FnshedFontEndanIdg ondFIyng 16 nst uctons Vey Connpl Send50te fo 1984/1985 catelog4 FAI Model Supply 57Torm9O51O U7i4cttijM ilk Incorporated 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm Ii Re p lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo$3500 October1984 169 REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE AL RADIO SYSTEMSI FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI
Edition: Model Aviation - 1984/10
Page Numbers: 80, 168, 169
Contml Line Speed Gene Hem pel BAN MODELS Now have tention please read first time modelers have taken reasonable effort write con cerning editorial written AMA President John C Grigg Editors note August 1984 AMA News Presidents Corner item titled Noise Standards letters phone calls have received editorial covers noise pollu tion model engines have opportunity either read editorial converse John concerning sub ject appears everyone concerned about equipment becoming obsolete suggestion would write John Griggdo phoneconcerning noise problem am sure some justification writing editorial would like apologize John Hunton Annandale VA giving him credit takeoff dolly design appeared August 1984 issue Speed col umn design works very well asymmetrical model simple construct recent increased interest Speed generating some activity few local Texas Speed modelers held first Speed meet June 9 10 en joyable visit Speed modelers dropped out Joe McKinzie Ft Worth teamed George Aldrich early Sixties Also Tom Blankmann Coppell TX active Speed modeler St Louis area early Seventies Dimmitt Perkins Houston Jet model couldnt get engine run continuously tried get B Speed model release dolly fastest race car wings speeds nothing fantastic did have plenty eat BS session enjoyed reading through correspon dence modelers came across letter some very interesting thoughts Dan Burdick Seat tle WA reads follows have model airplanes off around 20 years Over years Ive also studied modelers attitudes have changed toward wonderful sport Sorry say loaf bread about 40 50 cents back early Sixties 049 Control Line kit $495 Also world tension uptight 10- 12-year-old boy very excited hear buzzing model engine local school ground would almost anytling hang handle background pretty shaking experience local flying field some time ago must relate fly Formula 40 speed am very much love Control Line models kind Anyway day testing some rework just landed young boys appeared 11-13 age group came walking over see what going kid said Gee sure noisy very angry look face sudden says bad would hurt Continued page 168 Gene Hempel trying get Winged race car going recent Speea meet inc crowa U Consists U R Dimmift Perkins holding starter Jo McKinzie supervising Gene Hempel starting K&B 29-powered model Tom Blankmann helping Joe supervise right Gene has launched McKlnzie looks hes about grab battery Gene didnt say piloting 80 Model Aviation iantastIcl Inc nnique inventea DY Jim gntingaie sever Tears ago best worlds black long pipe hot days power polished shorter cool days rpm long pipe good takeoff shorter speed runand get two chances good needle setting its perfect boats too powerpipe turns rpm-pipe straighaway its also very helpful filers just dont know what length pipe runi Now maybe need third for. mymEET PIXr BREAK THE 2-METER PERFORMANCE BARRIER LIGHTWEIGHTSOLID CORE CONSTRUCTIONEPPLER 214 AIRFOIL AILERONS80 OTGREE FLAPS elevator compensatorWINOSONG STYLE FUSELAGECLEAN QUIET SNOOTHTRAC KING AND EFFICIENT Pixy peer multi-task thermal competition pure myna mite fly v slope thermal aerobatic displays will make heart stop 1 hr VHS VIDEO TAPE showing OUR PLANES IN ACTION CONTROL TEMS LINKAGES APPLICATION FIBERGLASS FIN/TURTLE-DECK ano H WING BUILDING SEQUENCE Send $25 $20 deposit/$5 ship/hanaling 2 stamps complete catalog f mar multichannel ghders giving specifications - armance control configurations construction kit/parts price list induong $19995NEW Camano 100 $15995 BR ND NEW Pisy $14995 OBSON DESIGNS SW Cainano Drive Camano Island WA 98292 plane system no RF signal used transmitted series en coded electrical pulses sent up lines model article will detailing step-by-step construction system units rather will give overview put together operates will have assume anyone tempting project either familiar electronic component wiring use printed circuit boards knows someone does can help accompanying schematics show wiring encoder decoder units four types input circuitry used Clancy P-38 shown accompa nying photo first input th en coder Pin-l represented R-l 5K pot used fully-proportional control desired could models throttle control operating cooler doors etc S-2 SPDT switch arrange ment Input 2 used desire set fixed position item after its operation such flaps 5-2 position shown schematic flaps would up adjustment R-2 5K pot used define posi tion 5-2 operated its other position flaps down position determined adjusting R-3 5K pot third input Pin 3 controlled set fixed resistors S-3 singlepole push-button switch used Clancy operating brakes case operation 5-3 used applying brakes open position allows servo return fixed position leases brakes final fourth input shown 5-4 single-pole three-position rotary-type switch used combination fixed resistors R-7 R-9 1K pot R-8 operating landing gear landing lights schematic shows S-4 posi tion would have landing gear fully retracted center position allows landing gear operate fulldown position point retract servo has traveled something less its full travel point servo travel controlled R-l pot adjustment 5-4 operated its third position left schematic retract servo allowed move its maximum travel point used trip switch turns planes landing lights inputs shown examples types can used en coder can design own inputs long voltage-divider circuit least 5000 ohms between Pin 15 regu lated lts Pin 8 return side battery provides volts input pins number through seven encoder parts required construc tion system generally available electronic parts supply shops fixed resistors /4-watt size pots R-l 2 3 8 miniature size have adjusting shafts R-l 14 can PC printed circuit type capacitors ceramic type need have voltage ratings much higher 12 volts decide build system will need printed circuit board about four-inch square two 16-pin chip sockets some light hookup wire switches activate encoder inputs functions wish perform model case Clancys system en coder parts mounted piece PC board measuring 1 x 15 inches mounted inside control handle along pot controls switches nine-volt transistor battery used powering encoder will note accompanying photo Clancys homemade control handle has two lines because chose control throt tles model electronically rather use normal three-line bellcrank system Using two lines permitted him use heavy nylon bellcrank elevator control same time provide insulation control lines model end control lines handle end insulated another being attached insulating material such piece heavy nylon fiberglass fastened rear handle Control lines used Clancy made Berkley Co 120-lb-test nylon-covered salt water leader called Steelon 027-in thick constructing decoder size PC board critical will mounted somewhere model will have provide appropriate space servos 48 volt 55OmAh Ni-Cd power supply S6me last thoughts After units built powered up couple minor adjustments made Start measuring voltage encoder pin 13 Adjust pot R-14 until voltage pin 12 /2 voltage mesured pin 13 Next adjust pot R-l Ito center servos R-14 may changed slightly R-l readjusted center servos less servo travel desired Please note positive-pulse servos should used system Clancy has indicated will pro vide help can anyone builds system encounters prob lems requests send SASE self addressed stamped envelope questions Send letters Clancy Arnold 5434 Purpura Dr Lawrence IN 46236 Good Luck system Please send items CL Scale Bill Boss 77-06 269th St New Hyde Park NY 11040 CL SpeedlHem psi Continued page 80 stepped damn plane said Id turn ya over knee tell parents Well gave model cou ple dirty looks said Yeah would almost worth End story Gene dont know what percent kids like shock quite some time Anyway kind happening indication youngsters attitudes today no wonder sport serious danger also feel Control Line should publicized pro motioncarried out Another problem needs dealt RC can young people get information CL magazines print 3/4 RC / CL may much Lets face Control Line becoming spe cialized sport what 20-25 168 Model Aviation ENEAE~ hinge allows control D I1IIVLV& rface removal tools lost puns problems fr PATENT painting repair PENDINGcovering transportation storage etc Scale Appearance InsertSimple Assembly 3 SIZES No Slots No Pins Rotate 38-6 $445 12-6 $495 years ago Bread now $100 loaf 049 kit out world So comments Print wish Some recent correspondence has quite interesting thoughtprovokingbut cant print Dont let deter sending observations opinions Speed need inputs modelers possible can best figure out what readers may interested Keep cards letters photos coming Gene Hempel 301 N Yale Dr Gar land TX 75042 CL AerobatlcslFancher Continued page 78 applied force such manner cause yaw right air craft pitched up left pitched down thereby increasing line ten sion insides decreasing outsides examples column will consider model flying normal anti-clock wise flight battle insidious force Al devised two gimmicks First famous Rabe Rudder connected elevator apply right rudder outside maneuvers second front-Up leadout point rear Down leadout intent both cause ship yaw away pilot outside maneuvers thus neutral ize evil precession First let make clear defer no admiration accomplishments Al Rabe words Frank Sinatra did way way best ways ever once mentioned Bill Werwage handful Stunt Masters feel Al sits very comfortably same small list However. due respect Al gyroscopic precession effects real phenomenon way prop weighing under half ounce spinning modest rpms simply isnt significant trim problem three-to-four-pound mass moving 50 60 mph estimation classic example right solution wrong problem Als ships did have unique trim prob lem both devices clever solution However wasnt gyro scopic precession wit Als semiscale ships built substantial amounts dihedral Stunt Glossary Dihedral design concept wherein wing tips higher root wing Dihedral makes aircraft stable roll axis ie wing drops its ver tical lift component greater raised wing will therefore natu rally raise low wing thereby maintain ing wings-level attitude wing dihedral inherently stable posi tive-G maneuvers ie insides inherent ly unstable negative-G maneuvers ie outsides instability unpre dictable may manifest itself roll either left right What both Rabe Rudder front-Up line accomplished make inevitable roll predictable advan tageous Control Line pilot caus ing yaw accompanying roll away circle As further evidence devices best reserved bentwing birds reread Als own Mustunt arti cle American Aircraft Modeler February 1973 wherein has endless trouble making blamed rudder work basic simple straight-winged Stunter essence ends up almost no movement rudder Nuff said Well no really cause what really wanted discuss P Factor What may well asking yourself P-Factor direct answer discussion P-Factor reason should normally use rear Up line consider wig gly rudder should hook up work opposite Als ie right rudder insides Any real plane pilots addition Stunt jockeys probably nodding knowingly yourselves light dawns Please refer drawings RIDDE042 UL9LL R 1mm thick Boxed 16 oz rubber per boxSzes Price $1250 per box ppd USA32 _______1 1' TILKA ________8 WAKEFIEL $3895p.UPEnslsh3 FnshedFontEndanIdg ondFIyng 16 nst uctons Vey Connpl Send50te fo 1984/1985 catelog4 FAI Model Supply 57Torm9O51O U7i4cttijM ilk Incorporated 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm Ii Re p lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo$3500 October1984 169 REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE AL RADIO SYSTEMSI FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI
Edition: Model Aviation - 1984/10
Page Numbers: 80, 168, 169
Contml Line Speed Gene Hem pel BAN MODELS Now have tention please read first time modelers have taken reasonable effort write con cerning editorial written AMA President John C Grigg Editors note August 1984 AMA News Presidents Corner item titled Noise Standards letters phone calls have received editorial covers noise pollu tion model engines have opportunity either read editorial converse John concerning sub ject appears everyone concerned about equipment becoming obsolete suggestion would write John Griggdo phoneconcerning noise problem am sure some justification writing editorial would like apologize John Hunton Annandale VA giving him credit takeoff dolly design appeared August 1984 issue Speed col umn design works very well asymmetrical model simple construct recent increased interest Speed generating some activity few local Texas Speed modelers held first Speed meet June 9 10 en joyable visit Speed modelers dropped out Joe McKinzie Ft Worth teamed George Aldrich early Sixties Also Tom Blankmann Coppell TX active Speed modeler St Louis area early Seventies Dimmitt Perkins Houston Jet model couldnt get engine run continuously tried get B Speed model release dolly fastest race car wings speeds nothing fantastic did have plenty eat BS session enjoyed reading through correspon dence modelers came across letter some very interesting thoughts Dan Burdick Seat tle WA reads follows have model airplanes off around 20 years Over years Ive also studied modelers attitudes have changed toward wonderful sport Sorry say loaf bread about 40 50 cents back early Sixties 049 Control Line kit $495 Also world tension uptight 10- 12-year-old boy very excited hear buzzing model engine local school ground would almost anytling hang handle background pretty shaking experience local flying field some time ago must relate fly Formula 40 speed am very much love Control Line models kind Anyway day testing some rework just landed young boys appeared 11-13 age group came walking over see what going kid said Gee sure noisy very angry look face sudden says bad would hurt Continued page 168 Gene Hempel trying get Winged race car going recent Speea meet inc crowa U Consists U R Dimmift Perkins holding starter Jo McKinzie supervising Gene Hempel starting K&B 29-powered model Tom Blankmann helping Joe supervise right Gene has launched McKlnzie looks hes about grab battery Gene didnt say piloting 80 Model Aviation iantastIcl Inc nnique inventea DY Jim gntingaie sever Tears ago best worlds black long pipe hot days power polished shorter cool days rpm long pipe good takeoff shorter speed runand get two chances good needle setting its perfect boats too powerpipe turns rpm-pipe straighaway its also very helpful filers just dont know what length pipe runi Now maybe need third for. mymEET PIXr BREAK THE 2-METER PERFORMANCE BARRIER LIGHTWEIGHTSOLID CORE CONSTRUCTIONEPPLER 214 AIRFOIL AILERONS80 OTGREE FLAPS elevator compensatorWINOSONG STYLE FUSELAGECLEAN QUIET SNOOTHTRAC KING AND EFFICIENT Pixy peer multi-task thermal competition pure myna mite fly v slope thermal aerobatic displays will make heart stop 1 hr VHS VIDEO TAPE showing OUR PLANES IN ACTION CONTROL TEMS LINKAGES APPLICATION FIBERGLASS FIN/TURTLE-DECK ano H WING BUILDING SEQUENCE Send $25 $20 deposit/$5 ship/hanaling 2 stamps complete catalog f mar multichannel ghders giving specifications - armance control configurations construction kit/parts price list induong $19995NEW Camano 100 $15995 BR ND NEW Pisy $14995 OBSON DESIGNS SW Cainano Drive Camano Island WA 98292 plane system no RF signal used transmitted series en coded electrical pulses sent up lines model article will detailing step-by-step construction system units rather will give overview put together operates will have assume anyone tempting project either familiar electronic component wiring use printed circuit boards knows someone does can help accompanying schematics show wiring encoder decoder units four types input circuitry used Clancy P-38 shown accompa nying photo first input th en coder Pin-l represented R-l 5K pot used fully-proportional control desired could models throttle control operating cooler doors etc S-2 SPDT switch arrange ment Input 2 used desire set fixed position item after its operation such flaps 5-2 position shown schematic flaps would up adjustment R-2 5K pot used define posi tion 5-2 operated its other position flaps down position determined adjusting R-3 5K pot third input Pin 3 controlled set fixed resistors S-3 singlepole push-button switch used Clancy operating brakes case operation 5-3 used applying brakes open position allows servo return fixed position leases brakes final fourth input shown 5-4 single-pole three-position rotary-type switch used combination fixed resistors R-7 R-9 1K pot R-8 operating landing gear landing lights schematic shows S-4 posi tion would have landing gear fully retracted center position allows landing gear operate fulldown position point retract servo has traveled something less its full travel point servo travel controlled R-l pot adjustment 5-4 operated its third position left schematic retract servo allowed move its maximum travel point used trip switch turns planes landing lights inputs shown examples types can used en coder can design own inputs long voltage-divider circuit least 5000 ohms between Pin 15 regu lated lts Pin 8 return side battery provides volts input pins number through seven encoder parts required construc tion system generally available electronic parts supply shops fixed resistors /4-watt size pots R-l 2 3 8 miniature size have adjusting shafts R-l 14 can PC printed circuit type capacitors ceramic type need have voltage ratings much higher 12 volts decide build system will need printed circuit board about four-inch square two 16-pin chip sockets some light hookup wire switches activate encoder inputs functions wish perform model case Clancys system en coder parts mounted piece PC board measuring 1 x 15 inches mounted inside control handle along pot controls switches nine-volt transistor battery used powering encoder will note accompanying photo Clancys homemade control handle has two lines because chose control throt tles model electronically rather use normal three-line bellcrank system Using two lines permitted him use heavy nylon bellcrank elevator control same time provide insulation control lines model end control lines handle end insulated another being attached insulating material such piece heavy nylon fiberglass fastened rear handle Control lines used Clancy made Berkley Co 120-lb-test nylon-covered salt water leader called Steelon 027-in thick constructing decoder size PC board critical will mounted somewhere model will have provide appropriate space servos 48 volt 55OmAh Ni-Cd power supply S6me last thoughts After units built powered up couple minor adjustments made Start measuring voltage encoder pin 13 Adjust pot R-14 until voltage pin 12 /2 voltage mesured pin 13 Next adjust pot R-l Ito center servos R-14 may changed slightly R-l readjusted center servos less servo travel desired Please note positive-pulse servos should used system Clancy has indicated will pro vide help can anyone builds system encounters prob lems requests send SASE self addressed stamped envelope questions Send letters Clancy Arnold 5434 Purpura Dr Lawrence IN 46236 Good Luck system Please send items CL Scale Bill Boss 77-06 269th St New Hyde Park NY 11040 CL SpeedlHem psi Continued page 80 stepped damn plane said Id turn ya over knee tell parents Well gave model cou ple dirty looks said Yeah would almost worth End story Gene dont know what percent kids like shock quite some time Anyway kind happening indication youngsters attitudes today no wonder sport serious danger also feel Control Line should publicized pro motioncarried out Another problem needs dealt RC can young people get information CL magazines print 3/4 RC / CL may much Lets face Control Line becoming spe cialized sport what 20-25 168 Model Aviation ENEAE~ hinge allows control D I1IIVLV& rface removal tools lost puns problems fr PATENT painting repair PENDINGcovering transportation storage etc Scale Appearance InsertSimple Assembly 3 SIZES No Slots No Pins Rotate 38-6 $445 12-6 $495 years ago Bread now $100 loaf 049 kit out world So comments Print wish Some recent correspondence has quite interesting thoughtprovokingbut cant print Dont let deter sending observations opinions Speed need inputs modelers possible can best figure out what readers may interested Keep cards letters photos coming Gene Hempel 301 N Yale Dr Gar land TX 75042 CL AerobatlcslFancher Continued page 78 applied force such manner cause yaw right air craft pitched up left pitched down thereby increasing line ten sion insides decreasing outsides examples column will consider model flying normal anti-clock wise flight battle insidious force Al devised two gimmicks First famous Rabe Rudder connected elevator apply right rudder outside maneuvers second front-Up leadout point rear Down leadout intent both cause ship yaw away pilot outside maneuvers thus neutral ize evil precession First let make clear defer no admiration accomplishments Al Rabe words Frank Sinatra did way way best ways ever once mentioned Bill Werwage handful Stunt Masters feel Al sits very comfortably same small list However. due respect Al gyroscopic precession effects real phenomenon way prop weighing under half ounce spinning modest rpms simply isnt significant trim problem three-to-four-pound mass moving 50 60 mph estimation classic example right solution wrong problem Als ships did have unique trim prob lem both devices clever solution However wasnt gyro scopic precession wit Als semiscale ships built substantial amounts dihedral Stunt Glossary Dihedral design concept wherein wing tips higher root wing Dihedral makes aircraft stable roll axis ie wing drops its ver tical lift component greater raised wing will therefore natu rally raise low wing thereby maintain ing wings-level attitude wing dihedral inherently stable posi tive-G maneuvers ie insides inherent ly unstable negative-G maneuvers ie outsides instability unpre dictable may manifest itself roll either left right What both Rabe Rudder front-Up line accomplished make inevitable roll predictable advan tageous Control Line pilot caus ing yaw accompanying roll away circle As further evidence devices best reserved bentwing birds reread Als own Mustunt arti cle American Aircraft Modeler February 1973 wherein has endless trouble making blamed rudder work basic simple straight-winged Stunter essence ends up almost no movement rudder Nuff said Well no really cause what really wanted discuss P Factor What may well asking yourself P-Factor direct answer discussion P-Factor reason should normally use rear Up line consider wig gly rudder should hook up work opposite Als ie right rudder insides Any real plane pilots addition Stunt jockeys probably nodding knowingly yourselves light dawns Please refer drawings RIDDE042 UL9LL R 1mm thick Boxed 16 oz rubber per boxSzes Price $1250 per box ppd USA32 _______1 1' TILKA ________8 WAKEFIEL $3895p.UPEnslsh3 FnshedFontEndanIdg ondFIyng 16 nst uctons Vey Connpl Send50te fo 1984/1985 catelog4 FAI Model Supply 57Torm9O51O U7i4cttijM ilk Incorporated 322 So Gallatin RdMadison TN 37115 615 868-6811 Mon thru Sat am 500 pm Ii Re p lace expensive throwaway dry cell transmitter battery recharg eable nickel cadmium battery Ready use Replaces Eveready 276 nIne volt dry cell battery Transmitter Ni-Cad Battery$3000 Transmitter Ni-Cad Charger$ 895 Battery/Charger Combo$3500 October1984 169 REPAIR SERVICE FOR HOBBY LOBBY EK LOGICTROL FUTABA T HOBBY SHACK ROYAL LINE AL RADIO SYSTEMSI FUTABA ROYAL ACCESSORIES FOR MOST RADIOSI