WHAT WE NEED basic Helicopter ra dio Based sample three observations Nats Long Island Hover Lovers 8th Annual East Coast Helicopter Championships got impression preferred Helicopter radio going 1983 Contest Season Circus Apollo D6C-4SHM system Radio Technique October 1982 MA system literally defined term Basic Helicopter Radio since offered linear electronic Tail Rotor mixing trimmable mixed fifth servo Collective control price right entered market same time Kraft gyro sold beginners enjoyed early success used well-developed modern Heli copter kits credit better Helicopter kits Apollo radio system Kraft gyro much recent growth RC Helicopter activity Unfortunately Apollo system went out production end 1982 As result complex Futaba 0-series Circus VII VIII Unlimited cap tured customers during 1983 because available because offered additional features among FM new RC chan nels inverted flight switch additional features extremely valuable can use inescapable add burden beginner because what can adjusted sets must adjusted correctly think market still needs Basic Helicopter radio too Airtronics Championship Series Heli copter radio CS5H came scene fairly late 1983 Its design sticks fairly close Basic theme order compete contemporary market clude FM invert switch FM no problem doubt beginner will need invert switch CS5H pro vides fifth servo Collective doesnt give proportional trim lever Airtonics provides linear electronic tail rotor compensation ACC function has much longer dwell time Apollo several seconds ACC useful fixed-pitch Helicopters have es sentially disappeared kit market not-so-humble opinion beginner should flying fixed-pitch Heli copter ACC should necessary beginner radio other hand beginners disagree want sell now have Airtronics Championship Series Helicopter radio No 4 series Airtronics/Cox/Sanwa radios Tim have used during past eight years Pre vious Sanwa-built radios have trust worthy workhorses expect same transmitter case feels good hands especially checkered grip plates back case seems have control beginner needs includ ing XPO certain models Helicooters eniov way servo reversing XPO/LIN End-point Adjust ments tucked away under removable front nameplate long-standing pet peeves has way some RC system designers will insist putting nonflight controls adjustments outside box can knocked out place accidentally Airtronics designers al resisted temptation L/R tail rotor compensation switch Throttle Hold Dual Rate pots top deck 38 Model Aviation hands flying reporter George M Myers cradle new Helicopter radioan Airtronlcs CS5H GeQrge comments systemand Helicopter radios generalthis month prefer have under cover will admit Airtronics/Sanwa has well protected Trims center-marked have ratchets nice can see photograph flight controls placed Im accustomed finding think Heli copter Radio has reached point control locations should standardized Airtronics has arranged spaced con trols manner similar Apollo suits fine Id prefer have Throttle Hold Dual Rate pots relocated under front cover well guarded really dont mind special Helicopter controls reasonably protected transmitters carrying handle fact switches themselves have short handles find everything easily accessible though have smaller hands some folks fly thumbs like fact stick height adjustableand stiffer springs available centering sticks tested prototype Airtronics transmitter FM module receiver about year ago using RC5O performance beyond Helicopter need point tossed Sailplane ground-range check glide took nearly /8 mile away altitude about eight feet way lucky ground effect glides perfect control right down touchdown So What ask So transmitter antenna completely collapsed time thats what also put Sailplane nearly out sight overhead flew under perfect control transmitter antenna collapsed three inches exposed No interference encountered Empire Paging 10 kHz away no problems other fliers field using available RC channels/frequencies dont need kind sensitivity its nice know youve got Ill tell little secret manufac turers keep themselves new FM systems its possible fly Helicopter transmitter antenna collapsed sectionand FM receiver antenna shortened considera bly Precisely minimum lengths antennas can used matter decide based tests because results will strongly influenced amount metallic clatter chopper makes performance instance want hide receiver tenna inside scale Helicopter Airtronics system features plug-in FM module transmitter plug-in crystal receiver facilitate RC channel changes like trans mitter has front panel meter measures RF Output current supplied Output stages also monitors Flight Pack battery voltage using ground-test cable fly gyro use battery pack battery-monitoring function es sential Two sockets provided groundtest cable labeled DSC socket gives direct servo control function After youve used youll won der ever got along DSC function permits tinker Helicopter whenever wherever like turning transmitter Begin ners lot tinkering controls DSC can adjust controls time long like spoiling TV4 TV5 family home interfering someones flight depending ESV socket measures flight pack bat tery voltage under load about 280 mA fine aircraft Helicopters using two-pack system gyro stallation have gyro running off single large flight battery should running make test make connection way airplane charging jack Both transmitter re ceiver must OFF make measure ment Like others Airtronics sells fivechannel system four servos Re member order fifth servo Heli copter features collective pitch control Airtronics system assumes will use gyro will gladly sell provides in-flight sensitivity adjustments Continued page 143 June 1984 39 goodies Airtronics flight pack including tail rotor gyro gyro mixing box gyro battery pack laid out think theyll fit nose Georges new Baron 20 Total system weight hefty 24 oz gyro Heres what Airtronics gyro package alone looks like flying weIght system shown 10 oz George adamant about fact beginners should start oft gyro Watson Stabilizer collective-pitch machine Hes got say column ber little end front sug gested control surface travel aileron throw should set about 1/4 way ele vator throw about /s way rud der about 3/4 measured trailing edge surfaces As model amount surface movement should ad justed suit style flying Dont pull plane off ground too quickly several reasons Too much rota tion might cause prop hit ground although weve never problem controls will effective until flying speed reached Remember theres no air blast propeller going over control surfaces forward speed needed control also means slow way down flying go high throttle elevator may effective until get some airspeed again landing approach go-around apply throttle gradually Landings easy plane will settle slowly nose high very stable approach Wingovers can done look good hit rudder control before airspeed gone Again no air blast rudders help want try snap maneuvers spins youre own let know what happens may before try experiment change design calculate balance point location care fully dont fly tail-heavy airplane Keep plenty vertical fin area ducted fan version Firebolt would interest ing fan unit mounted fuselage above wing correct balance point would easy achieve Have fun flying tail first Radio Technique/Myers Continued aae 39 way Gear switch assuming bought Airtronics gyro fea tures airborne control panel turn gyro ON/OFF select between pots set two levels in-flight selectable sensitivity dont need sixth servo though receiver labeled airplane control terms has six servo receptacles Gyro Mixer box plugs Continued page 146 FREE 1984 Catalog tools Hobbyist S Miniature lathes 0 Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 61 4/445-962 ~ hobby products co PO Box 07846 Columbus OH 43207 Hf 0 Pop said yourself oughta get hobby 1935 KINNER SPORTWING 1A size span Plans consist 4 sheets include construction booklet fin decals Plans 0 Postage WOODY FRANTZ 9126 E 67th Ct Tulsa OK 74133 918 250-0033 IIOBBYKIDEAwAYHOBBYHIDEAWAYHOBBYIIIOEAWAYHOBBYFIIOEAWAY FAMOUS BRITISH DIESELS CATALOG-DIESEL HANuBOuI 50 pp HOBBY HIDEWAYDELAVANIL 244-7389 61734 S HO8RYHTOFAWAYHOBBYHIOEAWMHOBBYjBEAWAYHOB6YHTDEAW June 1984 143 AEROMODELLER PLANS SPARES M/E PAvv D/C 3rd PRINTING LEOS LASER * World Aerobatic Champion lop Quality Epoxy Glass Fuse loge Cowl & Wheel Pent /4 Aluminum Landing Gear Foam Wing90 Spun Wing Area 1440 sq inches Complete Step Step Solon Finish Kit structions Pictures Weight 16-20 lbs Engine 2-4 HP 9995 PLU S $1 * SHIPPING Direct-Sales Only ROUSH MFG JR3 STICK Ideal Trainer Ax Ontstnnding Relsa & Fosm Kit 72 Wing Spun wing Ares-liSt sq 12 5, Assembly Time weight t -12 lbs Engine Sixe 75 1 3 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Turbo BD Trainer 40&25 sizes Manufacturers Quality Kits Large Scale Engines GLOW lireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal o Six Types 3 Heat Ranges o Longer Life Only $129 Swanson Associates PO Box 151Since 7948 NJA Wayne 07470 TO ORDERSend $1200 plux $150 Shipping Packaging Charges ICalit Rasidents Add 6/s%SnlnsTax Hal Payne Enterprises 1843 W Torrance Blvd Torrance CA 90501 213 320-3068 Address Radio Technique/Myers Continued page 143 two receptacles RUDDER AUX Collective servo plugs GEAR receptacle sounds confusing have once Read instruction manual its English Airtronics gyro resembles Circus gyro its setup its actions see photo system arrived 94554 servos zero-slop ball-bearing isolated potentiometer coreless-motor high-torque waterproof servos Because Helicopters seem eat servos Ive encountered failures little hour service seven 10 hours first failure nor mal some folks will argue plainbearing isolated-potentiometer standardmotor servo sensible choice Such plain servos usually have some degree gear slop Experienced chopper pilots will tell tighter stronger quicker precise control system better will fly No argument about Most Helicopter troubles come sloppy controls bad adjustments So pays money takes choice might choose fly cheaper servos until youve got everything under control put expensive servos advanced training will need advantages real precision wish quantitative way assess good/bad Helicopter servo installations So far just use rubber appliances come servo screw down metal eyelets place avoid crushing rubber youve proven theres better way Id really like hear about believe cant prove pushrods should short stiff possible links should fit bellcranks servo wheels etc snug fit pos sible vibration standpoint ar rowshaft pushrod should better bicycle spoke use lot spokes just because Im lazy next guy main reason seeking another radio desire try inverted flying Wankel-powered Baron 20 Sure could easily put invert switch Apollo Im obeying wise old sage once said Dont mess around working system Last years OS 28H/Apollo/Kraft gyro/5R900 packlAce Silver SevenIKPS-24-equipped Baron 20 camera its back doing just fine Im leaving alone Ive long idea Wankel could natural Baron 20 way installation works out carburetor crankcase pressure fittings fall right Barons fuel tank centerline should ideal kinds flying Wankel offers better power/weight ratio reciprocating 28 less vibration runs faster led sunnise tht might spin main rotor faster never have tained 1300 1500 rpm manual says correct machine Spinning main rotor faster might permit flight smaller main-rotor pitch angle reversing pitch inverted flying should require less rework right So what happened Tune next month find out George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Computer/Sarpolus-Raad Continued page 42 would include canard area also program gives both answers engine loading pounds per cubic inch engine displacement added program interest shows sort calculations computer can easily vertical fin area analyzed according formula program advises area needed design contains excess area Firebolt design has excessive fin area flies well Explanation description pro gram program developed using Hewlett-Packard Model 9830 mini-computer consequently written HP BASIC version BASIC very similar variations language now used innumerable home computers program consists Display Input Computation Print commands 146 Model Aviation Canton OH 44707 Phone 216 484-6810 484-4374 TUNED PIPE CONNEC TOR $1200 Pat Appi aluminum sealed silicon 0 rings Easy install Simply insert header pipe tighten end caps - More Blowouta e No Unsightly Ties No Lost PIpes oniy inlng ever wear out lea 50 0 ring extra 0 rIng Included e SatIsfactIon Money Back Guaranteed Thin return uhlppleg label t LegIbly
Edition: Model Aviation - 1984/06
Page Numbers: 38, 39, 143, 146
WHAT WE NEED basic Helicopter ra dio Based sample three observations Nats Long Island Hover Lovers 8th Annual East Coast Helicopter Championships got impression preferred Helicopter radio going 1983 Contest Season Circus Apollo D6C-4SHM system Radio Technique October 1982 MA system literally defined term Basic Helicopter Radio since offered linear electronic Tail Rotor mixing trimmable mixed fifth servo Collective control price right entered market same time Kraft gyro sold beginners enjoyed early success used well-developed modern Heli copter kits credit better Helicopter kits Apollo radio system Kraft gyro much recent growth RC Helicopter activity Unfortunately Apollo system went out production end 1982 As result complex Futaba 0-series Circus VII VIII Unlimited cap tured customers during 1983 because available because offered additional features among FM new RC chan nels inverted flight switch additional features extremely valuable can use inescapable add burden beginner because what can adjusted sets must adjusted correctly think market still needs Basic Helicopter radio too Airtronics Championship Series Heli copter radio CS5H came scene fairly late 1983 Its design sticks fairly close Basic theme order compete contemporary market clude FM invert switch FM no problem doubt beginner will need invert switch CS5H pro vides fifth servo Collective doesnt give proportional trim lever Airtonics provides linear electronic tail rotor compensation ACC function has much longer dwell time Apollo several seconds ACC useful fixed-pitch Helicopters have es sentially disappeared kit market not-so-humble opinion beginner should flying fixed-pitch Heli copter ACC should necessary beginner radio other hand beginners disagree want sell now have Airtronics Championship Series Helicopter radio No 4 series Airtronics/Cox/Sanwa radios Tim have used during past eight years Pre vious Sanwa-built radios have trust worthy workhorses expect same transmitter case feels good hands especially checkered grip plates back case seems have control beginner needs includ ing XPO certain models Helicooters eniov way servo reversing XPO/LIN End-point Adjust ments tucked away under removable front nameplate long-standing pet peeves has way some RC system designers will insist putting nonflight controls adjustments outside box can knocked out place accidentally Airtronics designers al resisted temptation L/R tail rotor compensation switch Throttle Hold Dual Rate pots top deck 38 Model Aviation hands flying reporter George M Myers cradle new Helicopter radioan Airtronlcs CS5H GeQrge comments systemand Helicopter radios generalthis month prefer have under cover will admit Airtronics/Sanwa has well protected Trims center-marked have ratchets nice can see photograph flight controls placed Im accustomed finding think Heli copter Radio has reached point control locations should standardized Airtronics has arranged spaced con trols manner similar Apollo suits fine Id prefer have Throttle Hold Dual Rate pots relocated under front cover well guarded really dont mind special Helicopter controls reasonably protected transmitters carrying handle fact switches themselves have short handles find everything easily accessible though have smaller hands some folks fly thumbs like fact stick height adjustableand stiffer springs available centering sticks tested prototype Airtronics transmitter FM module receiver about year ago using RC5O performance beyond Helicopter need point tossed Sailplane ground-range check glide took nearly /8 mile away altitude about eight feet way lucky ground effect glides perfect control right down touchdown So What ask So transmitter antenna completely collapsed time thats what also put Sailplane nearly out sight overhead flew under perfect control transmitter antenna collapsed three inches exposed No interference encountered Empire Paging 10 kHz away no problems other fliers field using available RC channels/frequencies dont need kind sensitivity its nice know youve got Ill tell little secret manufac turers keep themselves new FM systems its possible fly Helicopter transmitter antenna collapsed sectionand FM receiver antenna shortened considera bly Precisely minimum lengths antennas can used matter decide based tests because results will strongly influenced amount metallic clatter chopper makes performance instance want hide receiver tenna inside scale Helicopter Airtronics system features plug-in FM module transmitter plug-in crystal receiver facilitate RC channel changes like trans mitter has front panel meter measures RF Output current supplied Output stages also monitors Flight Pack battery voltage using ground-test cable fly gyro use battery pack battery-monitoring function es sential Two sockets provided groundtest cable labeled DSC socket gives direct servo control function After youve used youll won der ever got along DSC function permits tinker Helicopter whenever wherever like turning transmitter Begin ners lot tinkering controls DSC can adjust controls time long like spoiling TV4 TV5 family home interfering someones flight depending ESV socket measures flight pack bat tery voltage under load about 280 mA fine aircraft Helicopters using two-pack system gyro stallation have gyro running off single large flight battery should running make test make connection way airplane charging jack Both transmitter re ceiver must OFF make measure ment Like others Airtronics sells fivechannel system four servos Re member order fifth servo Heli copter features collective pitch control Airtronics system assumes will use gyro will gladly sell provides in-flight sensitivity adjustments Continued page 143 June 1984 39 goodies Airtronics flight pack including tail rotor gyro gyro mixing box gyro battery pack laid out think theyll fit nose Georges new Baron 20 Total system weight hefty 24 oz gyro Heres what Airtronics gyro package alone looks like flying weIght system shown 10 oz George adamant about fact beginners should start oft gyro Watson Stabilizer collective-pitch machine Hes got say column ber little end front sug gested control surface travel aileron throw should set about 1/4 way ele vator throw about /s way rud der about 3/4 measured trailing edge surfaces As model amount surface movement should ad justed suit style flying Dont pull plane off ground too quickly several reasons Too much rota tion might cause prop hit ground although weve never problem controls will effective until flying speed reached Remember theres no air blast propeller going over control surfaces forward speed needed control also means slow way down flying go high throttle elevator may effective until get some airspeed again landing approach go-around apply throttle gradually Landings easy plane will settle slowly nose high very stable approach Wingovers can done look good hit rudder control before airspeed gone Again no air blast rudders help want try snap maneuvers spins youre own let know what happens may before try experiment change design calculate balance point location care fully dont fly tail-heavy airplane Keep plenty vertical fin area ducted fan version Firebolt would interest ing fan unit mounted fuselage above wing correct balance point would easy achieve Have fun flying tail first Radio Technique/Myers Continued aae 39 way Gear switch assuming bought Airtronics gyro fea tures airborne control panel turn gyro ON/OFF select between pots set two levels in-flight selectable sensitivity dont need sixth servo though receiver labeled airplane control terms has six servo receptacles Gyro Mixer box plugs Continued page 146 FREE 1984 Catalog tools Hobbyist S Miniature lathes 0 Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 61 4/445-962 ~ hobby products co PO Box 07846 Columbus OH 43207 Hf 0 Pop said yourself oughta get hobby 1935 KINNER SPORTWING 1A size span Plans consist 4 sheets include construction booklet fin decals Plans 0 Postage WOODY FRANTZ 9126 E 67th Ct Tulsa OK 74133 918 250-0033 IIOBBYKIDEAwAYHOBBYHIDEAWAYHOBBYIIIOEAWAYHOBBYFIIOEAWAY FAMOUS BRITISH DIESELS CATALOG-DIESEL HANuBOuI 50 pp HOBBY HIDEWAYDELAVANIL 244-7389 61734 S HO8RYHTOFAWAYHOBBYHIOEAWMHOBBYjBEAWAYHOB6YHTDEAW June 1984 143 AEROMODELLER PLANS SPARES M/E PAvv D/C 3rd PRINTING LEOS LASER * World Aerobatic Champion lop Quality Epoxy Glass Fuse loge Cowl & Wheel Pent /4 Aluminum Landing Gear Foam Wing90 Spun Wing Area 1440 sq inches Complete Step Step Solon Finish Kit structions Pictures Weight 16-20 lbs Engine 2-4 HP 9995 PLU S $1 * SHIPPING Direct-Sales Only ROUSH MFG JR3 STICK Ideal Trainer Ax Ontstnnding Relsa & Fosm Kit 72 Wing Spun wing Ares-liSt sq 12 5, Assembly Time weight t -12 lbs Engine Sixe 75 1 3 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Turbo BD Trainer 40&25 sizes Manufacturers Quality Kits Large Scale Engines GLOW lireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal o Six Types 3 Heat Ranges o Longer Life Only $129 Swanson Associates PO Box 151Since 7948 NJA Wayne 07470 TO ORDERSend $1200 plux $150 Shipping Packaging Charges ICalit Rasidents Add 6/s%SnlnsTax Hal Payne Enterprises 1843 W Torrance Blvd Torrance CA 90501 213 320-3068 Address Radio Technique/Myers Continued page 143 two receptacles RUDDER AUX Collective servo plugs GEAR receptacle sounds confusing have once Read instruction manual its English Airtronics gyro resembles Circus gyro its setup its actions see photo system arrived 94554 servos zero-slop ball-bearing isolated potentiometer coreless-motor high-torque waterproof servos Because Helicopters seem eat servos Ive encountered failures little hour service seven 10 hours first failure nor mal some folks will argue plainbearing isolated-potentiometer standardmotor servo sensible choice Such plain servos usually have some degree gear slop Experienced chopper pilots will tell tighter stronger quicker precise control system better will fly No argument about Most Helicopter troubles come sloppy controls bad adjustments So pays money takes choice might choose fly cheaper servos until youve got everything under control put expensive servos advanced training will need advantages real precision wish quantitative way assess good/bad Helicopter servo installations So far just use rubber appliances come servo screw down metal eyelets place avoid crushing rubber youve proven theres better way Id really like hear about believe cant prove pushrods should short stiff possible links should fit bellcranks servo wheels etc snug fit pos sible vibration standpoint ar rowshaft pushrod should better bicycle spoke use lot spokes just because Im lazy next guy main reason seeking another radio desire try inverted flying Wankel-powered Baron 20 Sure could easily put invert switch Apollo Im obeying wise old sage once said Dont mess around working system Last years OS 28H/Apollo/Kraft gyro/5R900 packlAce Silver SevenIKPS-24-equipped Baron 20 camera its back doing just fine Im leaving alone Ive long idea Wankel could natural Baron 20 way installation works out carburetor crankcase pressure fittings fall right Barons fuel tank centerline should ideal kinds flying Wankel offers better power/weight ratio reciprocating 28 less vibration runs faster led sunnise tht might spin main rotor faster never have tained 1300 1500 rpm manual says correct machine Spinning main rotor faster might permit flight smaller main-rotor pitch angle reversing pitch inverted flying should require less rework right So what happened Tune next month find out George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Computer/Sarpolus-Raad Continued page 42 would include canard area also program gives both answers engine loading pounds per cubic inch engine displacement added program interest shows sort calculations computer can easily vertical fin area analyzed according formula program advises area needed design contains excess area Firebolt design has excessive fin area flies well Explanation description pro gram program developed using Hewlett-Packard Model 9830 mini-computer consequently written HP BASIC version BASIC very similar variations language now used innumerable home computers program consists Display Input Computation Print commands 146 Model Aviation Canton OH 44707 Phone 216 484-6810 484-4374 TUNED PIPE CONNEC TOR $1200 Pat Appi aluminum sealed silicon 0 rings Easy install Simply insert header pipe tighten end caps - More Blowouta e No Unsightly Ties No Lost PIpes oniy inlng ever wear out lea 50 0 ring extra 0 rIng Included e SatIsfactIon Money Back Guaranteed Thin return uhlppleg label t LegIbly
Edition: Model Aviation - 1984/06
Page Numbers: 38, 39, 143, 146
WHAT WE NEED basic Helicopter ra dio Based sample three observations Nats Long Island Hover Lovers 8th Annual East Coast Helicopter Championships got impression preferred Helicopter radio going 1983 Contest Season Circus Apollo D6C-4SHM system Radio Technique October 1982 MA system literally defined term Basic Helicopter Radio since offered linear electronic Tail Rotor mixing trimmable mixed fifth servo Collective control price right entered market same time Kraft gyro sold beginners enjoyed early success used well-developed modern Heli copter kits credit better Helicopter kits Apollo radio system Kraft gyro much recent growth RC Helicopter activity Unfortunately Apollo system went out production end 1982 As result complex Futaba 0-series Circus VII VIII Unlimited cap tured customers during 1983 because available because offered additional features among FM new RC chan nels inverted flight switch additional features extremely valuable can use inescapable add burden beginner because what can adjusted sets must adjusted correctly think market still needs Basic Helicopter radio too Airtronics Championship Series Heli copter radio CS5H came scene fairly late 1983 Its design sticks fairly close Basic theme order compete contemporary market clude FM invert switch FM no problem doubt beginner will need invert switch CS5H pro vides fifth servo Collective doesnt give proportional trim lever Airtonics provides linear electronic tail rotor compensation ACC function has much longer dwell time Apollo several seconds ACC useful fixed-pitch Helicopters have es sentially disappeared kit market not-so-humble opinion beginner should flying fixed-pitch Heli copter ACC should necessary beginner radio other hand beginners disagree want sell now have Airtronics Championship Series Helicopter radio No 4 series Airtronics/Cox/Sanwa radios Tim have used during past eight years Pre vious Sanwa-built radios have trust worthy workhorses expect same transmitter case feels good hands especially checkered grip plates back case seems have control beginner needs includ ing XPO certain models Helicooters eniov way servo reversing XPO/LIN End-point Adjust ments tucked away under removable front nameplate long-standing pet peeves has way some RC system designers will insist putting nonflight controls adjustments outside box can knocked out place accidentally Airtronics designers al resisted temptation L/R tail rotor compensation switch Throttle Hold Dual Rate pots top deck 38 Model Aviation hands flying reporter George M Myers cradle new Helicopter radioan Airtronlcs CS5H GeQrge comments systemand Helicopter radios generalthis month prefer have under cover will admit Airtronics/Sanwa has well protected Trims center-marked have ratchets nice can see photograph flight controls placed Im accustomed finding think Heli copter Radio has reached point control locations should standardized Airtronics has arranged spaced con trols manner similar Apollo suits fine Id prefer have Throttle Hold Dual Rate pots relocated under front cover well guarded really dont mind special Helicopter controls reasonably protected transmitters carrying handle fact switches themselves have short handles find everything easily accessible though have smaller hands some folks fly thumbs like fact stick height adjustableand stiffer springs available centering sticks tested prototype Airtronics transmitter FM module receiver about year ago using RC5O performance beyond Helicopter need point tossed Sailplane ground-range check glide took nearly /8 mile away altitude about eight feet way lucky ground effect glides perfect control right down touchdown So What ask So transmitter antenna completely collapsed time thats what also put Sailplane nearly out sight overhead flew under perfect control transmitter antenna collapsed three inches exposed No interference encountered Empire Paging 10 kHz away no problems other fliers field using available RC channels/frequencies dont need kind sensitivity its nice know youve got Ill tell little secret manufac turers keep themselves new FM systems its possible fly Helicopter transmitter antenna collapsed sectionand FM receiver antenna shortened considera bly Precisely minimum lengths antennas can used matter decide based tests because results will strongly influenced amount metallic clatter chopper makes performance instance want hide receiver tenna inside scale Helicopter Airtronics system features plug-in FM module transmitter plug-in crystal receiver facilitate RC channel changes like trans mitter has front panel meter measures RF Output current supplied Output stages also monitors Flight Pack battery voltage using ground-test cable fly gyro use battery pack battery-monitoring function es sential Two sockets provided groundtest cable labeled DSC socket gives direct servo control function After youve used youll won der ever got along DSC function permits tinker Helicopter whenever wherever like turning transmitter Begin ners lot tinkering controls DSC can adjust controls time long like spoiling TV4 TV5 family home interfering someones flight depending ESV socket measures flight pack bat tery voltage under load about 280 mA fine aircraft Helicopters using two-pack system gyro stallation have gyro running off single large flight battery should running make test make connection way airplane charging jack Both transmitter re ceiver must OFF make measure ment Like others Airtronics sells fivechannel system four servos Re member order fifth servo Heli copter features collective pitch control Airtronics system assumes will use gyro will gladly sell provides in-flight sensitivity adjustments Continued page 143 June 1984 39 goodies Airtronics flight pack including tail rotor gyro gyro mixing box gyro battery pack laid out think theyll fit nose Georges new Baron 20 Total system weight hefty 24 oz gyro Heres what Airtronics gyro package alone looks like flying weIght system shown 10 oz George adamant about fact beginners should start oft gyro Watson Stabilizer collective-pitch machine Hes got say column ber little end front sug gested control surface travel aileron throw should set about 1/4 way ele vator throw about /s way rud der about 3/4 measured trailing edge surfaces As model amount surface movement should ad justed suit style flying Dont pull plane off ground too quickly several reasons Too much rota tion might cause prop hit ground although weve never problem controls will effective until flying speed reached Remember theres no air blast propeller going over control surfaces forward speed needed control also means slow way down flying go high throttle elevator may effective until get some airspeed again landing approach go-around apply throttle gradually Landings easy plane will settle slowly nose high very stable approach Wingovers can done look good hit rudder control before airspeed gone Again no air blast rudders help want try snap maneuvers spins youre own let know what happens may before try experiment change design calculate balance point location care fully dont fly tail-heavy airplane Keep plenty vertical fin area ducted fan version Firebolt would interest ing fan unit mounted fuselage above wing correct balance point would easy achieve Have fun flying tail first Radio Technique/Myers Continued aae 39 way Gear switch assuming bought Airtronics gyro fea tures airborne control panel turn gyro ON/OFF select between pots set two levels in-flight selectable sensitivity dont need sixth servo though receiver labeled airplane control terms has six servo receptacles Gyro Mixer box plugs Continued page 146 FREE 1984 Catalog tools Hobbyist S Miniature lathes 0 Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 61 4/445-962 ~ hobby products co PO Box 07846 Columbus OH 43207 Hf 0 Pop said yourself oughta get hobby 1935 KINNER SPORTWING 1A size span Plans consist 4 sheets include construction booklet fin decals Plans 0 Postage WOODY FRANTZ 9126 E 67th Ct Tulsa OK 74133 918 250-0033 IIOBBYKIDEAwAYHOBBYHIDEAWAYHOBBYIIIOEAWAYHOBBYFIIOEAWAY FAMOUS BRITISH DIESELS CATALOG-DIESEL HANuBOuI 50 pp HOBBY HIDEWAYDELAVANIL 244-7389 61734 S HO8RYHTOFAWAYHOBBYHIOEAWMHOBBYjBEAWAYHOB6YHTDEAW June 1984 143 AEROMODELLER PLANS SPARES M/E PAvv D/C 3rd PRINTING LEOS LASER * World Aerobatic Champion lop Quality Epoxy Glass Fuse loge Cowl & Wheel Pent /4 Aluminum Landing Gear Foam Wing90 Spun Wing Area 1440 sq inches Complete Step Step Solon Finish Kit structions Pictures Weight 16-20 lbs Engine 2-4 HP 9995 PLU S $1 * SHIPPING Direct-Sales Only ROUSH MFG JR3 STICK Ideal Trainer Ax Ontstnnding Relsa & Fosm Kit 72 Wing Spun wing Ares-liSt sq 12 5, Assembly Time weight t -12 lbs Engine Sixe 75 1 3 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Turbo BD Trainer 40&25 sizes Manufacturers Quality Kits Large Scale Engines GLOW lireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal o Six Types 3 Heat Ranges o Longer Life Only $129 Swanson Associates PO Box 151Since 7948 NJA Wayne 07470 TO ORDERSend $1200 plux $150 Shipping Packaging Charges ICalit Rasidents Add 6/s%SnlnsTax Hal Payne Enterprises 1843 W Torrance Blvd Torrance CA 90501 213 320-3068 Address Radio Technique/Myers Continued page 143 two receptacles RUDDER AUX Collective servo plugs GEAR receptacle sounds confusing have once Read instruction manual its English Airtronics gyro resembles Circus gyro its setup its actions see photo system arrived 94554 servos zero-slop ball-bearing isolated potentiometer coreless-motor high-torque waterproof servos Because Helicopters seem eat servos Ive encountered failures little hour service seven 10 hours first failure nor mal some folks will argue plainbearing isolated-potentiometer standardmotor servo sensible choice Such plain servos usually have some degree gear slop Experienced chopper pilots will tell tighter stronger quicker precise control system better will fly No argument about Most Helicopter troubles come sloppy controls bad adjustments So pays money takes choice might choose fly cheaper servos until youve got everything under control put expensive servos advanced training will need advantages real precision wish quantitative way assess good/bad Helicopter servo installations So far just use rubber appliances come servo screw down metal eyelets place avoid crushing rubber youve proven theres better way Id really like hear about believe cant prove pushrods should short stiff possible links should fit bellcranks servo wheels etc snug fit pos sible vibration standpoint ar rowshaft pushrod should better bicycle spoke use lot spokes just because Im lazy next guy main reason seeking another radio desire try inverted flying Wankel-powered Baron 20 Sure could easily put invert switch Apollo Im obeying wise old sage once said Dont mess around working system Last years OS 28H/Apollo/Kraft gyro/5R900 packlAce Silver SevenIKPS-24-equipped Baron 20 camera its back doing just fine Im leaving alone Ive long idea Wankel could natural Baron 20 way installation works out carburetor crankcase pressure fittings fall right Barons fuel tank centerline should ideal kinds flying Wankel offers better power/weight ratio reciprocating 28 less vibration runs faster led sunnise tht might spin main rotor faster never have tained 1300 1500 rpm manual says correct machine Spinning main rotor faster might permit flight smaller main-rotor pitch angle reversing pitch inverted flying should require less rework right So what happened Tune next month find out George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Computer/Sarpolus-Raad Continued page 42 would include canard area also program gives both answers engine loading pounds per cubic inch engine displacement added program interest shows sort calculations computer can easily vertical fin area analyzed according formula program advises area needed design contains excess area Firebolt design has excessive fin area flies well Explanation description pro gram program developed using Hewlett-Packard Model 9830 mini-computer consequently written HP BASIC version BASIC very similar variations language now used innumerable home computers program consists Display Input Computation Print commands 146 Model Aviation Canton OH 44707 Phone 216 484-6810 484-4374 TUNED PIPE CONNEC TOR $1200 Pat Appi aluminum sealed silicon 0 rings Easy install Simply insert header pipe tighten end caps - More Blowouta e No Unsightly Ties No Lost PIpes oniy inlng ever wear out lea 50 0 ring extra 0 rIng Included e SatIsfactIon Money Back Guaranteed Thin return uhlppleg label t LegIbly
Edition: Model Aviation - 1984/06
Page Numbers: 38, 39, 143, 146
WHAT WE NEED basic Helicopter ra dio Based sample three observations Nats Long Island Hover Lovers 8th Annual East Coast Helicopter Championships got impression preferred Helicopter radio going 1983 Contest Season Circus Apollo D6C-4SHM system Radio Technique October 1982 MA system literally defined term Basic Helicopter Radio since offered linear electronic Tail Rotor mixing trimmable mixed fifth servo Collective control price right entered market same time Kraft gyro sold beginners enjoyed early success used well-developed modern Heli copter kits credit better Helicopter kits Apollo radio system Kraft gyro much recent growth RC Helicopter activity Unfortunately Apollo system went out production end 1982 As result complex Futaba 0-series Circus VII VIII Unlimited cap tured customers during 1983 because available because offered additional features among FM new RC chan nels inverted flight switch additional features extremely valuable can use inescapable add burden beginner because what can adjusted sets must adjusted correctly think market still needs Basic Helicopter radio too Airtronics Championship Series Heli copter radio CS5H came scene fairly late 1983 Its design sticks fairly close Basic theme order compete contemporary market clude FM invert switch FM no problem doubt beginner will need invert switch CS5H pro vides fifth servo Collective doesnt give proportional trim lever Airtonics provides linear electronic tail rotor compensation ACC function has much longer dwell time Apollo several seconds ACC useful fixed-pitch Helicopters have es sentially disappeared kit market not-so-humble opinion beginner should flying fixed-pitch Heli copter ACC should necessary beginner radio other hand beginners disagree want sell now have Airtronics Championship Series Helicopter radio No 4 series Airtronics/Cox/Sanwa radios Tim have used during past eight years Pre vious Sanwa-built radios have trust worthy workhorses expect same transmitter case feels good hands especially checkered grip plates back case seems have control beginner needs includ ing XPO certain models Helicooters eniov way servo reversing XPO/LIN End-point Adjust ments tucked away under removable front nameplate long-standing pet peeves has way some RC system designers will insist putting nonflight controls adjustments outside box can knocked out place accidentally Airtronics designers al resisted temptation L/R tail rotor compensation switch Throttle Hold Dual Rate pots top deck 38 Model Aviation hands flying reporter George M Myers cradle new Helicopter radioan Airtronlcs CS5H GeQrge comments systemand Helicopter radios generalthis month prefer have under cover will admit Airtronics/Sanwa has well protected Trims center-marked have ratchets nice can see photograph flight controls placed Im accustomed finding think Heli copter Radio has reached point control locations should standardized Airtronics has arranged spaced con trols manner similar Apollo suits fine Id prefer have Throttle Hold Dual Rate pots relocated under front cover well guarded really dont mind special Helicopter controls reasonably protected transmitters carrying handle fact switches themselves have short handles find everything easily accessible though have smaller hands some folks fly thumbs like fact stick height adjustableand stiffer springs available centering sticks tested prototype Airtronics transmitter FM module receiver about year ago using RC5O performance beyond Helicopter need point tossed Sailplane ground-range check glide took nearly /8 mile away altitude about eight feet way lucky ground effect glides perfect control right down touchdown So What ask So transmitter antenna completely collapsed time thats what also put Sailplane nearly out sight overhead flew under perfect control transmitter antenna collapsed three inches exposed No interference encountered Empire Paging 10 kHz away no problems other fliers field using available RC channels/frequencies dont need kind sensitivity its nice know youve got Ill tell little secret manufac turers keep themselves new FM systems its possible fly Helicopter transmitter antenna collapsed sectionand FM receiver antenna shortened considera bly Precisely minimum lengths antennas can used matter decide based tests because results will strongly influenced amount metallic clatter chopper makes performance instance want hide receiver tenna inside scale Helicopter Airtronics system features plug-in FM module transmitter plug-in crystal receiver facilitate RC channel changes like trans mitter has front panel meter measures RF Output current supplied Output stages also monitors Flight Pack battery voltage using ground-test cable fly gyro use battery pack battery-monitoring function es sential Two sockets provided groundtest cable labeled DSC socket gives direct servo control function After youve used youll won der ever got along DSC function permits tinker Helicopter whenever wherever like turning transmitter Begin ners lot tinkering controls DSC can adjust controls time long like spoiling TV4 TV5 family home interfering someones flight depending ESV socket measures flight pack bat tery voltage under load about 280 mA fine aircraft Helicopters using two-pack system gyro stallation have gyro running off single large flight battery should running make test make connection way airplane charging jack Both transmitter re ceiver must OFF make measure ment Like others Airtronics sells fivechannel system four servos Re member order fifth servo Heli copter features collective pitch control Airtronics system assumes will use gyro will gladly sell provides in-flight sensitivity adjustments Continued page 143 June 1984 39 goodies Airtronics flight pack including tail rotor gyro gyro mixing box gyro battery pack laid out think theyll fit nose Georges new Baron 20 Total system weight hefty 24 oz gyro Heres what Airtronics gyro package alone looks like flying weIght system shown 10 oz George adamant about fact beginners should start oft gyro Watson Stabilizer collective-pitch machine Hes got say column ber little end front sug gested control surface travel aileron throw should set about 1/4 way ele vator throw about /s way rud der about 3/4 measured trailing edge surfaces As model amount surface movement should ad justed suit style flying Dont pull plane off ground too quickly several reasons Too much rota tion might cause prop hit ground although weve never problem controls will effective until flying speed reached Remember theres no air blast propeller going over control surfaces forward speed needed control also means slow way down flying go high throttle elevator may effective until get some airspeed again landing approach go-around apply throttle gradually Landings easy plane will settle slowly nose high very stable approach Wingovers can done look good hit rudder control before airspeed gone Again no air blast rudders help want try snap maneuvers spins youre own let know what happens may before try experiment change design calculate balance point location care fully dont fly tail-heavy airplane Keep plenty vertical fin area ducted fan version Firebolt would interest ing fan unit mounted fuselage above wing correct balance point would easy achieve Have fun flying tail first Radio Technique/Myers Continued aae 39 way Gear switch assuming bought Airtronics gyro fea tures airborne control panel turn gyro ON/OFF select between pots set two levels in-flight selectable sensitivity dont need sixth servo though receiver labeled airplane control terms has six servo receptacles Gyro Mixer box plugs Continued page 146 FREE 1984 Catalog tools Hobbyist S Miniature lathes 0 Milling/drilling machines Jig & circular saws Styrofoam cutter Phone 61 4/445-962 ~ hobby products co PO Box 07846 Columbus OH 43207 Hf 0 Pop said yourself oughta get hobby 1935 KINNER SPORTWING 1A size span Plans consist 4 sheets include construction booklet fin decals Plans 0 Postage WOODY FRANTZ 9126 E 67th Ct Tulsa OK 74133 918 250-0033 IIOBBYKIDEAwAYHOBBYHIDEAWAYHOBBYIIIOEAWAYHOBBYFIIOEAWAY FAMOUS BRITISH DIESELS CATALOG-DIESEL HANuBOuI 50 pp HOBBY HIDEWAYDELAVANIL 244-7389 61734 S HO8RYHTOFAWAYHOBBYHIOEAWMHOBBYjBEAWAYHOB6YHTDEAW June 1984 143 AEROMODELLER PLANS SPARES M/E PAvv D/C 3rd PRINTING LEOS LASER * World Aerobatic Champion lop Quality Epoxy Glass Fuse loge Cowl & Wheel Pent /4 Aluminum Landing Gear Foam Wing90 Spun Wing Area 1440 sq inches Complete Step Step Solon Finish Kit structions Pictures Weight 16-20 lbs Engine 2-4 HP 9995 PLU S $1 * SHIPPING Direct-Sales Only ROUSH MFG JR3 STICK Ideal Trainer Ax Ontstnnding Relsa & Fosm Kit 72 Wing Spun wing Ares-liSt sq 12 5, Assembly Time weight t -12 lbs Engine Sixe 75 1 3 95 $7 9 PLUS SHIPPING Direct Sales Only COMING SOON Turbo BD Trainer 40&25 sizes Manufacturers Quality Kits Large Scale Engines GLOW lireb PLUGS NEW IMPROVED High Performance Glow Element e Blow Proof Seal o Six Types 3 Heat Ranges o Longer Life Only $129 Swanson Associates PO Box 151Since 7948 NJA Wayne 07470 TO ORDERSend $1200 plux $150 Shipping Packaging Charges ICalit Rasidents Add 6/s%SnlnsTax Hal Payne Enterprises 1843 W Torrance Blvd Torrance CA 90501 213 320-3068 Address Radio Technique/Myers Continued page 143 two receptacles RUDDER AUX Collective servo plugs GEAR receptacle sounds confusing have once Read instruction manual its English Airtronics gyro resembles Circus gyro its setup its actions see photo system arrived 94554 servos zero-slop ball-bearing isolated potentiometer coreless-motor high-torque waterproof servos Because Helicopters seem eat servos Ive encountered failures little hour service seven 10 hours first failure nor mal some folks will argue plainbearing isolated-potentiometer standardmotor servo sensible choice Such plain servos usually have some degree gear slop Experienced chopper pilots will tell tighter stronger quicker precise control system better will fly No argument about Most Helicopter troubles come sloppy controls bad adjustments So pays money takes choice might choose fly cheaper servos until youve got everything under control put expensive servos advanced training will need advantages real precision wish quantitative way assess good/bad Helicopter servo installations So far just use rubber appliances come servo screw down metal eyelets place avoid crushing rubber youve proven theres better way Id really like hear about believe cant prove pushrods should short stiff possible links should fit bellcranks servo wheels etc snug fit pos sible vibration standpoint ar rowshaft pushrod should better bicycle spoke use lot spokes just because Im lazy next guy main reason seeking another radio desire try inverted flying Wankel-powered Baron 20 Sure could easily put invert switch Apollo Im obeying wise old sage once said Dont mess around working system Last years OS 28H/Apollo/Kraft gyro/5R900 packlAce Silver SevenIKPS-24-equipped Baron 20 camera its back doing just fine Im leaving alone Ive long idea Wankel could natural Baron 20 way installation works out carburetor crankcase pressure fittings fall right Barons fuel tank centerline should ideal kinds flying Wankel offers better power/weight ratio reciprocating 28 less vibration runs faster led sunnise tht might spin main rotor faster never have tained 1300 1500 rpm manual says correct machine Spinning main rotor faster might permit flight smaller main-rotor pitch angle reversing pitch inverted flying should require less rework right So what happened Tune next month find out George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Computer/Sarpolus-Raad Continued page 42 would include canard area also program gives both answers engine loading pounds per cubic inch engine displacement added program interest shows sort calculations computer can easily vertical fin area analyzed according formula program advises area needed design contains excess area Firebolt design has excessive fin area flies well Explanation description pro gram program developed using Hewlett-Packard Model 9830 mini-computer consequently written HP BASIC version BASIC very similar variations language now used innumerable home computers program consists Display Input Computation Print commands 146 Model Aviation Canton OH 44707 Phone 216 484-6810 484-4374 TUNED PIPE CONNEC TOR $1200 Pat Appi aluminum sealed silicon 0 rings Easy install Simply insert header pipe tighten end caps - More Blowouta e No Unsightly Ties No Lost PIpes oniy inlng ever wear out lea 50 0 ring extra 0 rIng Included e SatIsfactIon Money Back Guaranteed Thin return uhlppleg label t LegIbly