Radio Control Helicopters Dave Chesney IT TAKES perseverance Some guys have less successful RC helicopter yet apparent more modelers successful Because persevered Weve read helicopters want fly Believe believe also will fly build machine exactly instructed persist task learning control beast yet successfully hovering machine youve tried have given up prematurely following sug gestions may help Assembly 1 Carefully assemble helicopter kit exactly accordance manu facturers instructions Most modifications have written various publica tions may omitted Although modifica tions may improve performance basic kit can confuse beginner during construction pre-flight set-up Note If experienced RC helicopter flier available assist construc tion set-up modifications should reviewed him before beginning construction 2 Use Loctite bolts using lock-washers lock-nuts 3 Pay particular attention building and/or installation main tail rotors Blade balancing option main tail rotors must carefully balanced ideally set blades should equal weight Plan build spare set main rotors now youll probably need 4 Stick manufacturers sugges tions initial set-up main-rotor pitch tail rotor throttle/collective etc beginning settings may need altered after run-up dynam ic checks 5 If possible use Schnuerle engine displacement recommended Pre-flight 1 Re-read check assembly notes check machine loose missing nuts bolts screws etc Continued page 93 26 Model Aviation First meeting NCHA Greensboro NC August 1977 Photograph Grady Howard r77t~ AA 5K 1/2W -TO ENCODER A ATR POT TRCH470flI/4W XMTR MIX CIRCUIT-by Mike Miles NCHA Jet Ranger Now Bill Watsons Bell 0H58 cosmetic modification made installing 1/32-in plywood window areas change outline Details text Pic Charles McMillan Instrumentation scale-like crew Watsons Bell sort thing shows have mastered copter does invest time details unless sure ship will last McMillan photo writer refers Cox 15 15 cc powerplant begins feel everyone realizes really simple conversion can need remem ber number six 60 cu motor also 10 cc 15 cc also 09 cu other words divide cu six multiply cc six Isnt ridiculously simple metric system would applaud K&B numbering new engines correct manner realize scientific devices metric have years physician measures size lesions cuts metric dentist uses root canal instruments metric pre scriptions metric etc conversion wood sizes isnt quite simple rough comparison studying plans drawings published anywhere remnants old British Empire use rule thumb 1/8th close 3 mm 1/16 close 15 mm exact close enough enable anyone grasp basic comparison Life would sure simpler us design models particularly scale metric system used universally Dee B Mathews 506 S Walnut Greensburg KS 67054 RC Helicopters/Chesney continued page 26 2 Check radio installation miss ing servo output arm screws servo control connecters ball links well usual check proper control movement 3 Call local RC helicopter expert available call friend Youll need spare hand 4 Gather equipment necessary start adjust machine Also make provisions attach helicopter firmly ground first check 5 Select flying area secluded surface should smooth black top concrete area clear obstacles Close buildings trees should avoided obstacles also affect wind conditions 6 Be aware potential danger helicopter around friend can help crowd con trol too present pack up must free devote attention helicopter 7 Always remember turn radio set low throttle radio should remain throughout starting proced ure main rotor should grasped firmly during starting prevent rotation 8 If radio proven reliable helicopter installation provision should made firmly attach machine ground Due vibration mechanical noise intermittent unwanted servo operation may experi enced during initial run-up machine securely retained ground first run-up may accom plished safely Once radio reliability confirmed helicopter should re moved restraint placed safely clear spectators field boxes etc Stand-Off Mustang Expanding new line 29- 40-powered Stand-Off kits House Balsa has introduced noteworthy P-51 attractive features flight perform ance pattern-like capabilities pow ered 35 Full-size plans comple mented 32-page instruction manual over 200 photos finishing procedures radio installation information proof-ofscale 3-views color reproductions real P-51 Kit includes hardware such premade aileron torque rods landing gear ele vator wire premade tailwheel assembly molded exhaust manifolds mylar decals full set both military racing versions Price $5495 House Balsa 20134 State Rd Cerritos CA 90701 NEWf MUFF-L-IT SERIES Available B C engines Six eight Ob reduction noise engines Proportional volumne aspen sion chamber Large exhaust nozzle low back pressure Little no toss power No 3010919$749 No 3022940tO39 No 30345SO1949 o x , C gh.. No 304R4 04tN StONS No 30tRX 2940 ttl55 No 30645 xxxo 4t3x5 1/2A MUFFLER Fits alt COX 049 engInes No 3005049$5 49 No 3005057$5 SN 9 Set blade tracking recommended instructions Tracking must ac complished before attempting learn control movement response does affect stability machine 10 Remember static pitch adjust ment main tail rotors beginning setting main rotor pitch may need adjustment up down setting Remember blade tracking recheck after change rotor pitch generally high blade adjusted down low blade higher blade rpm lift-off generally -throttle stick stable helicopter hover tail rotor set min imize yaw lift-off after main rotor has adjusted proper lift off pitch Flight 1 Be prepared devote full tention machine its responses control input Flying RC helicopter will full-time job will have time remind spectators remain clear dur ing first attempts Use friend crowd control 2 The helicopter controls respond similarly fixed-wing aircraft helicopter forward flight however must learn hover first hover machine will respond pitch control moving forward backward rather up down leave up elevator habit home fixed-wing machine concentrate throttle/collective altitude control youve tried quit try again youre still trying hang Pay close attention detail concentrate above persevere photos show Bill Watsons Kavan Jet Ranger modified cosmetically Bell 206A1/Army 0H58 configuration modification accomplished simply installing 1/32 plywood pieces side window areas change outline Patterns made poster board transferred plywood cut glued place plywood pieces reinforced inside fiberglass cloth resin exterior fill Hobbypoxy Stuff sanded flush product review product review product review fuselage sides very simple August1978 93 MANY OTHER ACCESSORIES REGULAR SEE YOUR DEALER SEND FOR CATALOG CAR BUFFS IRHAUST SEND FOR OUR THUNDER ROAD CATALOG product review product review product review GET ORGANIZED s set 4 slardy ties haNs over 4 years yosr tavoste 5 Ii magazrees 4 MAG FILES $495 Seed 5456 ptss SI 00 postage haedtig N DOM INOUSTRES PO BOX 388-K DOVER NH 03820 KITSOPLANSOACCESSORIES BABY ACEP-NUT KITS N BEARINGS BROWN CO-2 ENGINES COMPLETE CATALOG REAL JAPANESE TIISuCPROPj KIT $425 MANY CARD TO FIND ITEMS he*-Pb4tw W BOX 2498LA MESA CALIF 92041 modification give Jet Ranger fliers something just little different Bill Watson vice-president NCHA North Carolina Helicopter Assoc original members NCHA shown group photo first meet Greensboro NC Also NCHA schematic transmitter modification allow mixing throttle collective modification developed Mike Miles Durham NC Mikes modifica tion will work Kraft series 76-78 5channel transmitters will possibly work some other makes although tested modification will eliminate need Y connector between throttle collective servos offers advantage collective trim modify transmitter remove wire center lug retract switch 5th channel wire may attached directly center tap throttle pot collective trim desired Collective trim added addition miniature -watt 5K wirewound pot standard Kraft trim lever part #901 148 mounted convenient location pot electrically connected series fifth channel wire retract switch center tap existing throttle pot 470-ohm resistor placed series throttle channel lead center tap Two connections have made center tap throttle pot 1 5K pot series fifth channel 2 470-ohm resistor series throttle channel set up servos should re-centered using throttle stick pot collective trim pot ie sticks trims readjusted center tightened pot shafts operation circuit will increase servo travel five six degrees either side center Throttle throttle trim will affect both throttle collective col lective trim will affect collective channel final note Somewhere out someone flying hot Red Heli-boy Wolitz-modified EK radio say hot because helicopter radio other modeling articles stolen Walt Schoonards car Perry Georgia few weeks ago find information leading recovery stolen articles Im sure Walt would appreciate David R Chesney Rt 9 Box 621A Greensboro NC 27407 Tiny Sailplane/Jones continued page 30 sharp trailing edge control surfaces can deflected several degrees before im pinge high energy air Cut stabilator soft Vs sheet inset 1/16inside-diameter aluminum tube balsa correct locations Match stabilator horn rudder made three pieces blade driver horn Assemble attach fin used hinge points Finish prototype wing stabilator covered transparent orange top black bottom pod covered black fin good paint finish would easier pod boom canopy white coverings Super Monokote Equipment Installation Care must ex ercised fitting radio model large canopy helps make easy two-channel Cannon Tini-Block fit stock wire plugs switch Yes switch mounted under canopy product review product review product review ~1 40-Size Engine Mount Fourmost con tinuation successful wrap-around de sign 049 Airfla Mount Glas-filled nylon compound provides vibration-free design molded front end reduces aerodynamic drag around engine 2% firewall face 40 mount ideal Quicky-type aircraft Price $525 Fourmost Racing Products 4040 24th Ave Forest Grove OR 97116 product review product review product review next battery right side antenna routed out pod right side between frames 5 6 through small plastic tube supported top fin plug between switch receiver should above deck ease re-charging placed right side adjacent receiver lead runs switch aft under servo receiver up right side top deck plug placed just front canted frame beside re ceiver lead receiver comes out through deck center forward receiver runs center around right corner re ceiver aft switch lead servo receiver leads pass left re ceiver plugs behind receiver Flying center gravity shown sat isfactory slope flying may want farther aft thermal flying Hand launches 30 feet possible putting fingers behind wing center sec tion High-starts light rubber hand tows easily accomplished familiar characteristics model add winglets im provement flight should evident winglets place prototype glide turn characteristics both im proved Although winglets may look vulnerable arent prone flying/ landing damage However vul nerable during transportation storage Conclusion hope enjoy version much enjoy feel con figuration could scaled twice size gradual increase performance due scale factor Let hear about model Write Dave Jones 5621 Michelle Drive Tor rence CA 90503 CL Scale/Gretz continued page 31 Rd Fallbrook CA 92028 claims pro duce sell aviation aerospace books other publisher world know produce noteworthy books including well known Aero Series profile-type book lets covering famous WW2 military aircraft free catalog shows over 200 books phases aviation space books also available mail-order book dealers Ive already mentioned Sentry Books 10718 White Oak Ave Granada Hills CA 91344 another book publisher can buy directly line aviation books isnt very large yet Ive found book have got ten exceptional quality photos drawings historical accuracy manu facture Most authors interna tionally known experts subjects Sentry also publishes two bi-monthly mag azines called Wings Airpower 94 Model Aviation
Edition: Model Aviation - 1978/08
Page Numbers: 26, 93, 94
Radio Control Helicopters Dave Chesney IT TAKES perseverance Some guys have less successful RC helicopter yet apparent more modelers successful Because persevered Weve read helicopters want fly Believe believe also will fly build machine exactly instructed persist task learning control beast yet successfully hovering machine youve tried have given up prematurely following sug gestions may help Assembly 1 Carefully assemble helicopter kit exactly accordance manu facturers instructions Most modifications have written various publica tions may omitted Although modifica tions may improve performance basic kit can confuse beginner during construction pre-flight set-up Note If experienced RC helicopter flier available assist construc tion set-up modifications should reviewed him before beginning construction 2 Use Loctite bolts using lock-washers lock-nuts 3 Pay particular attention building and/or installation main tail rotors Blade balancing option main tail rotors must carefully balanced ideally set blades should equal weight Plan build spare set main rotors now youll probably need 4 Stick manufacturers sugges tions initial set-up main-rotor pitch tail rotor throttle/collective etc beginning settings may need altered after run-up dynam ic checks 5 If possible use Schnuerle engine displacement recommended Pre-flight 1 Re-read check assembly notes check machine loose missing nuts bolts screws etc Continued page 93 26 Model Aviation First meeting NCHA Greensboro NC August 1977 Photograph Grady Howard r77t~ AA 5K 1/2W -TO ENCODER A ATR POT TRCH470flI/4W XMTR MIX CIRCUIT-by Mike Miles NCHA Jet Ranger Now Bill Watsons Bell 0H58 cosmetic modification made installing 1/32-in plywood window areas change outline Details text Pic Charles McMillan Instrumentation scale-like crew Watsons Bell sort thing shows have mastered copter does invest time details unless sure ship will last McMillan photo writer refers Cox 15 15 cc powerplant begins feel everyone realizes really simple conversion can need remem ber number six 60 cu motor also 10 cc 15 cc also 09 cu other words divide cu six multiply cc six Isnt ridiculously simple metric system would applaud K&B numbering new engines correct manner realize scientific devices metric have years physician measures size lesions cuts metric dentist uses root canal instruments metric pre scriptions metric etc conversion wood sizes isnt quite simple rough comparison studying plans drawings published anywhere remnants old British Empire use rule thumb 1/8th close 3 mm 1/16 close 15 mm exact close enough enable anyone grasp basic comparison Life would sure simpler us design models particularly scale metric system used universally Dee B Mathews 506 S Walnut Greensburg KS 67054 RC Helicopters/Chesney continued page 26 2 Check radio installation miss ing servo output arm screws servo control connecters ball links well usual check proper control movement 3 Call local RC helicopter expert available call friend Youll need spare hand 4 Gather equipment necessary start adjust machine Also make provisions attach helicopter firmly ground first check 5 Select flying area secluded surface should smooth black top concrete area clear obstacles Close buildings trees should avoided obstacles also affect wind conditions 6 Be aware potential danger helicopter around friend can help crowd con trol too present pack up must free devote attention helicopter 7 Always remember turn radio set low throttle radio should remain throughout starting proced ure main rotor should grasped firmly during starting prevent rotation 8 If radio proven reliable helicopter installation provision should made firmly attach machine ground Due vibration mechanical noise intermittent unwanted servo operation may experi enced during initial run-up machine securely retained ground first run-up may accom plished safely Once radio reliability confirmed helicopter should re moved restraint placed safely clear spectators field boxes etc Stand-Off Mustang Expanding new line 29- 40-powered Stand-Off kits House Balsa has introduced noteworthy P-51 attractive features flight perform ance pattern-like capabilities pow ered 35 Full-size plans comple mented 32-page instruction manual over 200 photos finishing procedures radio installation information proof-ofscale 3-views color reproductions real P-51 Kit includes hardware such premade aileron torque rods landing gear ele vator wire premade tailwheel assembly molded exhaust manifolds mylar decals full set both military racing versions Price $5495 House Balsa 20134 State Rd Cerritos CA 90701 NEWf MUFF-L-IT SERIES Available B C engines Six eight Ob reduction noise engines Proportional volumne aspen sion chamber Large exhaust nozzle low back pressure Little no toss power No 3010919$749 No 3022940tO39 No 30345SO1949 o x , C gh.. No 304R4 04tN StONS No 30tRX 2940 ttl55 No 30645 xxxo 4t3x5 1/2A MUFFLER Fits alt COX 049 engInes No 3005049$5 49 No 3005057$5 SN 9 Set blade tracking recommended instructions Tracking must ac complished before attempting learn control movement response does affect stability machine 10 Remember static pitch adjust ment main tail rotors beginning setting main rotor pitch may need adjustment up down setting Remember blade tracking recheck after change rotor pitch generally high blade adjusted down low blade higher blade rpm lift-off generally -throttle stick stable helicopter hover tail rotor set min imize yaw lift-off after main rotor has adjusted proper lift off pitch Flight 1 Be prepared devote full tention machine its responses control input Flying RC helicopter will full-time job will have time remind spectators remain clear dur ing first attempts Use friend crowd control 2 The helicopter controls respond similarly fixed-wing aircraft helicopter forward flight however must learn hover first hover machine will respond pitch control moving forward backward rather up down leave up elevator habit home fixed-wing machine concentrate throttle/collective altitude control youve tried quit try again youre still trying hang Pay close attention detail concentrate above persevere photos show Bill Watsons Kavan Jet Ranger modified cosmetically Bell 206A1/Army 0H58 configuration modification accomplished simply installing 1/32 plywood pieces side window areas change outline Patterns made poster board transferred plywood cut glued place plywood pieces reinforced inside fiberglass cloth resin exterior fill Hobbypoxy Stuff sanded flush product review product review product review fuselage sides very simple August1978 93 MANY OTHER ACCESSORIES REGULAR SEE YOUR DEALER SEND FOR CATALOG CAR BUFFS IRHAUST SEND FOR OUR THUNDER ROAD CATALOG product review product review product review GET ORGANIZED s set 4 slardy ties haNs over 4 years yosr tavoste 5 Ii magazrees 4 MAG FILES $495 Seed 5456 ptss SI 00 postage haedtig N DOM INOUSTRES PO BOX 388-K DOVER NH 03820 KITSOPLANSOACCESSORIES BABY ACEP-NUT KITS N BEARINGS BROWN CO-2 ENGINES COMPLETE CATALOG REAL JAPANESE TIISuCPROPj KIT $425 MANY CARD TO FIND ITEMS he*-Pb4tw W BOX 2498LA MESA CALIF 92041 modification give Jet Ranger fliers something just little different Bill Watson vice-president NCHA North Carolina Helicopter Assoc original members NCHA shown group photo first meet Greensboro NC Also NCHA schematic transmitter modification allow mixing throttle collective modification developed Mike Miles Durham NC Mikes modifica tion will work Kraft series 76-78 5channel transmitters will possibly work some other makes although tested modification will eliminate need Y connector between throttle collective servos offers advantage collective trim modify transmitter remove wire center lug retract switch 5th channel wire may attached directly center tap throttle pot collective trim desired Collective trim added addition miniature -watt 5K wirewound pot standard Kraft trim lever part #901 148 mounted convenient location pot electrically connected series fifth channel wire retract switch center tap existing throttle pot 470-ohm resistor placed series throttle channel lead center tap Two connections have made center tap throttle pot 1 5K pot series fifth channel 2 470-ohm resistor series throttle channel set up servos should re-centered using throttle stick pot collective trim pot ie sticks trims readjusted center tightened pot shafts operation circuit will increase servo travel five six degrees either side center Throttle throttle trim will affect both throttle collective col lective trim will affect collective channel final note Somewhere out someone flying hot Red Heli-boy Wolitz-modified EK radio say hot because helicopter radio other modeling articles stolen Walt Schoonards car Perry Georgia few weeks ago find information leading recovery stolen articles Im sure Walt would appreciate David R Chesney Rt 9 Box 621A Greensboro NC 27407 Tiny Sailplane/Jones continued page 30 sharp trailing edge control surfaces can deflected several degrees before im pinge high energy air Cut stabilator soft Vs sheet inset 1/16inside-diameter aluminum tube balsa correct locations Match stabilator horn rudder made three pieces blade driver horn Assemble attach fin used hinge points Finish prototype wing stabilator covered transparent orange top black bottom pod covered black fin good paint finish would easier pod boom canopy white coverings Super Monokote Equipment Installation Care must ex ercised fitting radio model large canopy helps make easy two-channel Cannon Tini-Block fit stock wire plugs switch Yes switch mounted under canopy product review product review product review ~1 40-Size Engine Mount Fourmost con tinuation successful wrap-around de sign 049 Airfla Mount Glas-filled nylon compound provides vibration-free design molded front end reduces aerodynamic drag around engine 2% firewall face 40 mount ideal Quicky-type aircraft Price $525 Fourmost Racing Products 4040 24th Ave Forest Grove OR 97116 product review product review product review next battery right side antenna routed out pod right side between frames 5 6 through small plastic tube supported top fin plug between switch receiver should above deck ease re-charging placed right side adjacent receiver lead runs switch aft under servo receiver up right side top deck plug placed just front canted frame beside re ceiver lead receiver comes out through deck center forward receiver runs center around right corner re ceiver aft switch lead servo receiver leads pass left re ceiver plugs behind receiver Flying center gravity shown sat isfactory slope flying may want farther aft thermal flying Hand launches 30 feet possible putting fingers behind wing center sec tion High-starts light rubber hand tows easily accomplished familiar characteristics model add winglets im provement flight should evident winglets place prototype glide turn characteristics both im proved Although winglets may look vulnerable arent prone flying/ landing damage However vul nerable during transportation storage Conclusion hope enjoy version much enjoy feel con figuration could scaled twice size gradual increase performance due scale factor Let hear about model Write Dave Jones 5621 Michelle Drive Tor rence CA 90503 CL Scale/Gretz continued page 31 Rd Fallbrook CA 92028 claims pro duce sell aviation aerospace books other publisher world know produce noteworthy books including well known Aero Series profile-type book lets covering famous WW2 military aircraft free catalog shows over 200 books phases aviation space books also available mail-order book dealers Ive already mentioned Sentry Books 10718 White Oak Ave Granada Hills CA 91344 another book publisher can buy directly line aviation books isnt very large yet Ive found book have got ten exceptional quality photos drawings historical accuracy manu facture Most authors interna tionally known experts subjects Sentry also publishes two bi-monthly mag azines called Wings Airpower 94 Model Aviation
Edition: Model Aviation - 1978/08
Page Numbers: 26, 93, 94
Radio Control Helicopters Dave Chesney IT TAKES perseverance Some guys have less successful RC helicopter yet apparent more modelers successful Because persevered Weve read helicopters want fly Believe believe also will fly build machine exactly instructed persist task learning control beast yet successfully hovering machine youve tried have given up prematurely following sug gestions may help Assembly 1 Carefully assemble helicopter kit exactly accordance manu facturers instructions Most modifications have written various publica tions may omitted Although modifica tions may improve performance basic kit can confuse beginner during construction pre-flight set-up Note If experienced RC helicopter flier available assist construc tion set-up modifications should reviewed him before beginning construction 2 Use Loctite bolts using lock-washers lock-nuts 3 Pay particular attention building and/or installation main tail rotors Blade balancing option main tail rotors must carefully balanced ideally set blades should equal weight Plan build spare set main rotors now youll probably need 4 Stick manufacturers sugges tions initial set-up main-rotor pitch tail rotor throttle/collective etc beginning settings may need altered after run-up dynam ic checks 5 If possible use Schnuerle engine displacement recommended Pre-flight 1 Re-read check assembly notes check machine loose missing nuts bolts screws etc Continued page 93 26 Model Aviation First meeting NCHA Greensboro NC August 1977 Photograph Grady Howard r77t~ AA 5K 1/2W -TO ENCODER A ATR POT TRCH470flI/4W XMTR MIX CIRCUIT-by Mike Miles NCHA Jet Ranger Now Bill Watsons Bell 0H58 cosmetic modification made installing 1/32-in plywood window areas change outline Details text Pic Charles McMillan Instrumentation scale-like crew Watsons Bell sort thing shows have mastered copter does invest time details unless sure ship will last McMillan photo writer refers Cox 15 15 cc powerplant begins feel everyone realizes really simple conversion can need remem ber number six 60 cu motor also 10 cc 15 cc also 09 cu other words divide cu six multiply cc six Isnt ridiculously simple metric system would applaud K&B numbering new engines correct manner realize scientific devices metric have years physician measures size lesions cuts metric dentist uses root canal instruments metric pre scriptions metric etc conversion wood sizes isnt quite simple rough comparison studying plans drawings published anywhere remnants old British Empire use rule thumb 1/8th close 3 mm 1/16 close 15 mm exact close enough enable anyone grasp basic comparison Life would sure simpler us design models particularly scale metric system used universally Dee B Mathews 506 S Walnut Greensburg KS 67054 RC Helicopters/Chesney continued page 26 2 Check radio installation miss ing servo output arm screws servo control connecters ball links well usual check proper control movement 3 Call local RC helicopter expert available call friend Youll need spare hand 4 Gather equipment necessary start adjust machine Also make provisions attach helicopter firmly ground first check 5 Select flying area secluded surface should smooth black top concrete area clear obstacles Close buildings trees should avoided obstacles also affect wind conditions 6 Be aware potential danger helicopter around friend can help crowd con trol too present pack up must free devote attention helicopter 7 Always remember turn radio set low throttle radio should remain throughout starting proced ure main rotor should grasped firmly during starting prevent rotation 8 If radio proven reliable helicopter installation provision should made firmly attach machine ground Due vibration mechanical noise intermittent unwanted servo operation may experi enced during initial run-up machine securely retained ground first run-up may accom plished safely Once radio reliability confirmed helicopter should re moved restraint placed safely clear spectators field boxes etc Stand-Off Mustang Expanding new line 29- 40-powered Stand-Off kits House Balsa has introduced noteworthy P-51 attractive features flight perform ance pattern-like capabilities pow ered 35 Full-size plans comple mented 32-page instruction manual over 200 photos finishing procedures radio installation information proof-ofscale 3-views color reproductions real P-51 Kit includes hardware such premade aileron torque rods landing gear ele vator wire premade tailwheel assembly molded exhaust manifolds mylar decals full set both military racing versions Price $5495 House Balsa 20134 State Rd Cerritos CA 90701 NEWf MUFF-L-IT SERIES Available B C engines Six eight Ob reduction noise engines Proportional volumne aspen sion chamber Large exhaust nozzle low back pressure Little no toss power No 3010919$749 No 3022940tO39 No 30345SO1949 o x , C gh.. No 304R4 04tN StONS No 30tRX 2940 ttl55 No 30645 xxxo 4t3x5 1/2A MUFFLER Fits alt COX 049 engInes No 3005049$5 49 No 3005057$5 SN 9 Set blade tracking recommended instructions Tracking must ac complished before attempting learn control movement response does affect stability machine 10 Remember static pitch adjust ment main tail rotors beginning setting main rotor pitch may need adjustment up down setting Remember blade tracking recheck after change rotor pitch generally high blade adjusted down low blade higher blade rpm lift-off generally -throttle stick stable helicopter hover tail rotor set min imize yaw lift-off after main rotor has adjusted proper lift off pitch Flight 1 Be prepared devote full tention machine its responses control input Flying RC helicopter will full-time job will have time remind spectators remain clear dur ing first attempts Use friend crowd control 2 The helicopter controls respond similarly fixed-wing aircraft helicopter forward flight however must learn hover first hover machine will respond pitch control moving forward backward rather up down leave up elevator habit home fixed-wing machine concentrate throttle/collective altitude control youve tried quit try again youre still trying hang Pay close attention detail concentrate above persevere photos show Bill Watsons Kavan Jet Ranger modified cosmetically Bell 206A1/Army 0H58 configuration modification accomplished simply installing 1/32 plywood pieces side window areas change outline Patterns made poster board transferred plywood cut glued place plywood pieces reinforced inside fiberglass cloth resin exterior fill Hobbypoxy Stuff sanded flush product review product review product review fuselage sides very simple August1978 93 MANY OTHER ACCESSORIES REGULAR SEE YOUR DEALER SEND FOR CATALOG CAR BUFFS IRHAUST SEND FOR OUR THUNDER ROAD CATALOG product review product review product review GET ORGANIZED s set 4 slardy ties haNs over 4 years yosr tavoste 5 Ii magazrees 4 MAG FILES $495 Seed 5456 ptss SI 00 postage haedtig N DOM INOUSTRES PO BOX 388-K DOVER NH 03820 KITSOPLANSOACCESSORIES BABY ACEP-NUT KITS N BEARINGS BROWN CO-2 ENGINES COMPLETE CATALOG REAL JAPANESE TIISuCPROPj KIT $425 MANY CARD TO FIND ITEMS he*-Pb4tw W BOX 2498LA MESA CALIF 92041 modification give Jet Ranger fliers something just little different Bill Watson vice-president NCHA North Carolina Helicopter Assoc original members NCHA shown group photo first meet Greensboro NC Also NCHA schematic transmitter modification allow mixing throttle collective modification developed Mike Miles Durham NC Mikes modifica tion will work Kraft series 76-78 5channel transmitters will possibly work some other makes although tested modification will eliminate need Y connector between throttle collective servos offers advantage collective trim modify transmitter remove wire center lug retract switch 5th channel wire may attached directly center tap throttle pot collective trim desired Collective trim added addition miniature -watt 5K wirewound pot standard Kraft trim lever part #901 148 mounted convenient location pot electrically connected series fifth channel wire retract switch center tap existing throttle pot 470-ohm resistor placed series throttle channel lead center tap Two connections have made center tap throttle pot 1 5K pot series fifth channel 2 470-ohm resistor series throttle channel set up servos should re-centered using throttle stick pot collective trim pot ie sticks trims readjusted center tightened pot shafts operation circuit will increase servo travel five six degrees either side center Throttle throttle trim will affect both throttle collective col lective trim will affect collective channel final note Somewhere out someone flying hot Red Heli-boy Wolitz-modified EK radio say hot because helicopter radio other modeling articles stolen Walt Schoonards car Perry Georgia few weeks ago find information leading recovery stolen articles Im sure Walt would appreciate David R Chesney Rt 9 Box 621A Greensboro NC 27407 Tiny Sailplane/Jones continued page 30 sharp trailing edge control surfaces can deflected several degrees before im pinge high energy air Cut stabilator soft Vs sheet inset 1/16inside-diameter aluminum tube balsa correct locations Match stabilator horn rudder made three pieces blade driver horn Assemble attach fin used hinge points Finish prototype wing stabilator covered transparent orange top black bottom pod covered black fin good paint finish would easier pod boom canopy white coverings Super Monokote Equipment Installation Care must ex ercised fitting radio model large canopy helps make easy two-channel Cannon Tini-Block fit stock wire plugs switch Yes switch mounted under canopy product review product review product review ~1 40-Size Engine Mount Fourmost con tinuation successful wrap-around de sign 049 Airfla Mount Glas-filled nylon compound provides vibration-free design molded front end reduces aerodynamic drag around engine 2% firewall face 40 mount ideal Quicky-type aircraft Price $525 Fourmost Racing Products 4040 24th Ave Forest Grove OR 97116 product review product review product review next battery right side antenna routed out pod right side between frames 5 6 through small plastic tube supported top fin plug between switch receiver should above deck ease re-charging placed right side adjacent receiver lead runs switch aft under servo receiver up right side top deck plug placed just front canted frame beside re ceiver lead receiver comes out through deck center forward receiver runs center around right corner re ceiver aft switch lead servo receiver leads pass left re ceiver plugs behind receiver Flying center gravity shown sat isfactory slope flying may want farther aft thermal flying Hand launches 30 feet possible putting fingers behind wing center sec tion High-starts light rubber hand tows easily accomplished familiar characteristics model add winglets im provement flight should evident winglets place prototype glide turn characteristics both im proved Although winglets may look vulnerable arent prone flying/ landing damage However vul nerable during transportation storage Conclusion hope enjoy version much enjoy feel con figuration could scaled twice size gradual increase performance due scale factor Let hear about model Write Dave Jones 5621 Michelle Drive Tor rence CA 90503 CL Scale/Gretz continued page 31 Rd Fallbrook CA 92028 claims pro duce sell aviation aerospace books other publisher world know produce noteworthy books including well known Aero Series profile-type book lets covering famous WW2 military aircraft free catalog shows over 200 books phases aviation space books also available mail-order book dealers Ive already mentioned Sentry Books 10718 White Oak Ave Granada Hills CA 91344 another book publisher can buy directly line aviation books isnt very large yet Ive found book have got ten exceptional quality photos drawings historical accuracy manu facture Most authors interna tionally known experts subjects Sentry also publishes two bi-monthly mag azines called Wings Airpower 94 Model Aviation