Radio Technique George M Myers RC INSECTS ETC Dr Franklin H Meyer DDS 8014 Gowanda State Rd Eden NY 14057 wrote letter just has shared Dear George 1 am especially interested ultraminiature RC problem find source ultra-miniature equipment Remember Albin Superregen receiver May 1968 AAM built 010 aircraft using MS76 Silver Oxide batteries Bentert Actuator never did get consistent enough control happy receiver weighed six actuator 65 grams Surely have advances state art havent found Can help goal CO-2-powered Peanut Scale RC Ill keep posted put together Thanks Now letter strikes responsive chord heart son Christopher 12 years old built Albin receiver put service Chris Testors Simpulse transmit ter Chris designed first successful RC model around rig Cox 010-powered Curtis Robin built /16 sheet balsa profiles copied Guillow rubber-scale plan Chris copied standard RC construction techniques using balsa box fuselage plywood firewall etc flight pack mounted stick could easily moved plane plane modified stick trans mitter Chris Rudder Ele vator control way Galloping Ghost setup wings plugged fuse lage lift struts functional held balsa pins lot fun model 010 too powerful plane made exhaust restrictor engine flew 425 x 2 prop meant 020 engine Later Chris designed built Sailplane 18-in wingspan also flew radio control Great Guru micro-RC days Dave Robelin Peanut Scale RC Sperry Messinger always supposed next proj ect rig still own keep misplacing book plans Frank youre bringing back lot pleas ant old memories Today Bill Cannon best bet micro-RC Contact him Cannon R/C Systems 13400-26 Saticoy Street North Hollywood CA 91605 213 764-1488 Oh well thats enough reminiscing sup pose Its time get back work next letter Norm Orcutt Olean NY represents several including old friend Art Cervenka Florida Ill let Norm state problem Dear George 1 work STARS Frequency Board during Scale Rally held year Olean airport problem. group new old Cana dian frequencies manner avoids clashing What safest way set up board past have grouped several frequencies pin eg Purple/White RC5O 72800 [Canada] 150 fliers present last year 20 fliers pin system worked quite wait use pin guess what really want know have bunch frequencies would safe operate pin per frequency .What got wondering about fact nobody weekly club flying sessions gives frequency groupings second thought Come up see us July 6 7 Thanks Norm youre trying put spot first place Canadians are*ft following AMA Phase-In Plan 32 Model Aviation Tom Hunts terrific Grumman F14 Sport Scale ship Above display WRAM show Would believe just fIve days before show Tom sand paint job back primer because paint dried wrong color Since also worked normal 8hour days before show have wonder much sleeping did week Power two Kress RK740 ducted fan units 05 46s scene below Toms basement Ross McMullen keeps hands safely pockets Tom demon strates power F14s wingsweeping mechanism Model %scaie new fan units model has thrusttoweight ratio better 11 means can accelerate going straight up have essentially thrown 50 new frequencies open use excepting side Hz old frequen cies Thus RC5O illegal frequency Canada want get along anyway Im assuming STARS Rally will sanctioned AMA although dont see listed contest calendar May 1985 issue purpose AMA sanction guarantee protected drawing area securing AMA mem bers contestants make additional insurance available organizers contest want protection AMA must follow its rules Therefore frequencies specified AMA Phase-In Plan should used contest Since AMA rules work honor system Contest Director has lot latitude available interpreting enforcing rules Contest Director can work out whatever local options finds necessary real serious argument gets started AMA has several options open AMA can remove its sanction lift clubs charter and/or expel AMA members just cause No membership nsurance have voices raised time time wanted AMA insurance tied use RC channels specified AMA Phase-In Plan have argued against idea basis FCC sets rules use frequencies AMA can set rules AMA contests time insurance coverage tied following Phase-In Plan However should aware precondi tion obtaining valid AMA sanction Contest Director agrees follow AMA Rulesincluding Phase Plan found back rule book Since AMA insurance tied Phase-In Plan members can insured event accident caused offfrequency operation whether off-fre quency operation occurs through igno rance carelessness deliberate actions Conversely some time future let someone tie insurance directly use frequencies specified AMA Phase-In Plan insurance compa ny would able back away pay ment could prove transmitter drifted off its assigned frequency whether aware mind insurance accidents accidents happen dont have facts So say lets keep insurance covers accidents avoiding mention Phase-In Plan frequencies youll covered shot down Canadian About grouping frequenices Frequency-grouping done increase margins safety avoiding poten tial interferences no such thing totally-safe flying RC channels listed AMA Phase-In Plan can used together combination provid ing equipment use adequate technical basis See column MA May 1985 pp 38-39 Interference can happen time reasons beyond con trol other hand experience proves some combinations likely produce interferences others fore can argued safer group Brown/White RCI2 Yellow/ White because well-known poten tial image interference What grouping actually does make flying poor-quality equipment possible Continued page 34 July1985 33 looked smaller theni Christopher Myers Simpuise transmitter Lmodif led Galloping Ghost configurationrests beside complete flight pack consisting Bentert actuator Aibin receiver two aspirin-sized MS-76 batteries George dusted f gear photo surprised find Aibin receiver least six times iargr servo amplifier Cannon CE-S proportional servol Fifteen years aa date manufacture R look difference capabilities Aibin rece ver foreground very wide-band regenerative AM tone receiver no crystal capabie operating servothe Bentert rotary actuatorwhich via Galloping Ghost operation gives approximation two channels proportional control background Kraft KPR-8FDS synthesized-frequency FM receiver capable controiling eight independent proportional servos can switchselected receive 49 narrow-band RF channels Its synthesizer capable producingwith precision 100 Hz George addresses concept parallel redundant control systems column example pr battery system Kraft Hell-radio transmitter black box rear transmitter SR Batteries stick-on 8-cell battery pack reserve power can switch selected needed Piggy Back pack also makes convenient transmitter stand See SRs ad address telephone number CORBEN SUPEP ACE 1/48 SCALE MODEL KIT First planned series 1/48 scale aircraft models 1935 Corben Super-Ace single-seat sportplane powered Ford Model engine KIT FEATURES INJECTION-MOLDED PARTS COMPREHENSIVE INSTRUCTIONS MONOFILAMENT RIGGING DECALS FOR MARKINGS DEPT MA 92069 Geesg9 d gned Turnaround Pattern 4o00ea1 etai add $a$ ENA CJt pa o DEL AIRCRAFT SC0 aP0 Box 1902Greenville TX 75401214 454-6441 Similarly might tie together Brown/ White RC38 Blue/White RC42 Red/White RC46 Purple/White RC5O Orange/White RC54 avoid potential interferences can generated frequency differences half common IF ie 2275 kHz half 455 kHz have strong local TV4 might want tie together Orange/White ROW discontinue use RC44 entirely addition may want avoid situation three adjacent RC channels operating same time like RC38 RC4O RC42 might consider tieing pairs pins together RC38 RC4O RC42 RC44 RC46 RC48 RC5O RC52 RC54 RC56 would insure three sequence would never operate same time thus avoiding possible Third Order IM problems takeoff landing above may avoid lot possible trouble will need five 5 pins cover whole 72 MHz spectrum 1 BN/WH Y/WH RCl2 RC38 2 BL/WH RC42 RCA4 3 R/WH RC46 RC48 4 PUR/WH RC5O RC52 5 OR/WH RC4O RC54 RC56 Since five large powered airplanes air same time might con sidered lot five pins might enough would have larger margin safety would case uncoupled pins difference between Safe Safer hard quantify Most interferences encounter seem generated other modelers unat tended transmitters have left turned ON car boat people use Aircraft Only fre quencies What can done about gave some ideas last month Another good solution car boat problem would multiple parallel RF transmissions possible use several RC transmitter frequencies simul taneously control model Grum man X-29 carries three parallel computers pilot work its flight controls little work transmitter could made radiate RC channels tied together above eg BN/WH onboard computer could compare sig nals coming out four receivers detect discard signals receiv ers suffering interference would cost would safer chances finding another transmitter working four operat ing frequencies very much less chance finding just thats youve got point ways get away present RC system design string single-point failure sites use wealth RC channels begin parallel-redundant oper Continued page 129 34 Model Aviation N NEW SEND $1 FOR COMPLETE CATALOG 181 PAWNEE STREET SAN MARCOS CALIFORNIA GOLDEN AGE SERIES 13311 Beach Ave na Del Rey CA 2 821-6242 i LIONS BONN Ultimate Fun Fly Competition Model Ideal Sunday Flyer Excellent OS 65 PS ptIonally slow land ing speed le enough 1st AIleron model easily framed less U hrs. balsa raft plywood construction ed full sise plans EngIne45 61 Wingspan62 Length OA54 WIng Area850 sq Weight Sf 6 Lbs Wing LoadIng15 17 ox Designed Uob Lame kit market sold satisfaction guarantee money back LIST PRICE 94 S 5995 Introductory prIce offor limIted time Prepald Continental USA Texas Residents Add 5% Sales Tax Sand Money Orders Cashiers Check Next Day Shipping Allow 2 Weeks personal checks clear Sorry no COD Curtis Model Aircraft 3002 M Canterbury Circle Sherman Texas 75090 AC 214-U936155 High-speed maneuvering can cause unsupported tubes distort interfere control Finish MonoKote recommended wood surfaces K&B paint fuselage Alternately other finishes could considered weight buildup should avoided F3B models tend relatively heavy adding unneces sary finish weight Installation flap aileron cables installed per plans servo arrangement will have close photographs Kraft KPS-24 servos used prototype because have high torque tight centering aileron flap servos in-line rudder stabilator servos across in-line servos mounted plywood tray make installation removal easier other servos rails Ball links used attach flap aileron linkage links snapped forefinger link easily unsnapped placing small flat-blade screwdriver underneath twisting Aileron differential adjusted take-off point servo wheel Flying Hand toss model few times check out control sensitivity Hook winch build up fairly large line tension before launching recom mended become familiar Europa before using flaps large degree very easy use too much flap actually decrease performance rather increase Europa can also successfully launched high-start word cau tion use heavy-duty high-start stretch minimum 12 pounds pull Europa light airplane Speed runs should first flown out ballast get feel ship Slowly add ballast find highest speed point Remember keep nose down turns avoid losing momen tum Split-S turns effective turns two practice altitude first Radio Technique/Myers Continued page 34 ations RC flying will become safer best results everything should parallel redundant transmitter batteries servos plane Well frIends readers weve covered lot ground column started ultra-simple receiver no larger thumbnail have progressed through discussion possible advan tages obtained grouping RC channels concepts safer RC system on-board sampling com puter multiple parallel redundancy doesnt exist yet Weve looked what what might tip hat John Preston have talked little philosophy hope youve enjoyed Keep writing George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Toledo/Pruss Continued page 38 already have set good track record Davey also manufactures Sport Winch Powrzoom Winch Hobby Lobby rare Sailplanes Germany Hobby Lobbys line will hard top Schulgleiter SG-38 kit masterpiece full choice woods de tailed fittings thatsells for$128 -scale has span 102 area 1627 sq m also carry Gnmau Baby Reiher all-fiberglass state-of-theart Speed Astir spans over 12 ft latter priced $680 Bob Martin showed another Two-Meter bird called Pussycat has simple straightforward construction very tractive linesdesigned both Thermal Slope Soaring MEN Model Engineering Nor walk Dwight Holley F3B World Champion 1981 Dwights basically all-wood model caused fiberglass school construction sit up take notice Dwights Gobbler avail able MEN did everything glass ships did except better has 114 July 1985 129
Edition: Model Aviation - 1985/07
Page Numbers: 32, 33, 34, 129
Radio Technique George M Myers RC INSECTS ETC Dr Franklin H Meyer DDS 8014 Gowanda State Rd Eden NY 14057 wrote letter just has shared Dear George 1 am especially interested ultraminiature RC problem find source ultra-miniature equipment Remember Albin Superregen receiver May 1968 AAM built 010 aircraft using MS76 Silver Oxide batteries Bentert Actuator never did get consistent enough control happy receiver weighed six actuator 65 grams Surely have advances state art havent found Can help goal CO-2-powered Peanut Scale RC Ill keep posted put together Thanks Now letter strikes responsive chord heart son Christopher 12 years old built Albin receiver put service Chris Testors Simpulse transmit ter Chris designed first successful RC model around rig Cox 010-powered Curtis Robin built /16 sheet balsa profiles copied Guillow rubber-scale plan Chris copied standard RC construction techniques using balsa box fuselage plywood firewall etc flight pack mounted stick could easily moved plane plane modified stick trans mitter Chris Rudder Ele vator control way Galloping Ghost setup wings plugged fuse lage lift struts functional held balsa pins lot fun model 010 too powerful plane made exhaust restrictor engine flew 425 x 2 prop meant 020 engine Later Chris designed built Sailplane 18-in wingspan also flew radio control Great Guru micro-RC days Dave Robelin Peanut Scale RC Sperry Messinger always supposed next proj ect rig still own keep misplacing book plans Frank youre bringing back lot pleas ant old memories Today Bill Cannon best bet micro-RC Contact him Cannon R/C Systems 13400-26 Saticoy Street North Hollywood CA 91605 213 764-1488 Oh well thats enough reminiscing sup pose Its time get back work next letter Norm Orcutt Olean NY represents several including old friend Art Cervenka Florida Ill let Norm state problem Dear George 1 work STARS Frequency Board during Scale Rally held year Olean airport problem. group new old Cana dian frequencies manner avoids clashing What safest way set up board past have grouped several frequencies pin eg Purple/White RC5O 72800 [Canada] 150 fliers present last year 20 fliers pin system worked quite wait use pin guess what really want know have bunch frequencies would safe operate pin per frequency .What got wondering about fact nobody weekly club flying sessions gives frequency groupings second thought Come up see us July 6 7 Thanks Norm youre trying put spot first place Canadians are*ft following AMA Phase-In Plan 32 Model Aviation Tom Hunts terrific Grumman F14 Sport Scale ship Above display WRAM show Would believe just fIve days before show Tom sand paint job back primer because paint dried wrong color Since also worked normal 8hour days before show have wonder much sleeping did week Power two Kress RK740 ducted fan units 05 46s scene below Toms basement Ross McMullen keeps hands safely pockets Tom demon strates power F14s wingsweeping mechanism Model %scaie new fan units model has thrusttoweight ratio better 11 means can accelerate going straight up have essentially thrown 50 new frequencies open use excepting side Hz old frequen cies Thus RC5O illegal frequency Canada want get along anyway Im assuming STARS Rally will sanctioned AMA although dont see listed contest calendar May 1985 issue purpose AMA sanction guarantee protected drawing area securing AMA mem bers contestants make additional insurance available organizers contest want protection AMA must follow its rules Therefore frequencies specified AMA Phase-In Plan should used contest Since AMA rules work honor system Contest Director has lot latitude available interpreting enforcing rules Contest Director can work out whatever local options finds necessary real serious argument gets started AMA has several options open AMA can remove its sanction lift clubs charter and/or expel AMA members just cause No membership nsurance have voices raised time time wanted AMA insurance tied use RC channels specified AMA Phase-In Plan have argued against idea basis FCC sets rules use frequencies AMA can set rules AMA contests time insurance coverage tied following Phase-In Plan However should aware precondi tion obtaining valid AMA sanction Contest Director agrees follow AMA Rulesincluding Phase Plan found back rule book Since AMA insurance tied Phase-In Plan members can insured event accident caused offfrequency operation whether off-fre quency operation occurs through igno rance carelessness deliberate actions Conversely some time future let someone tie insurance directly use frequencies specified AMA Phase-In Plan insurance compa ny would able back away pay ment could prove transmitter drifted off its assigned frequency whether aware mind insurance accidents accidents happen dont have facts So say lets keep insurance covers accidents avoiding mention Phase-In Plan frequencies youll covered shot down Canadian About grouping frequenices Frequency-grouping done increase margins safety avoiding poten tial interferences no such thing totally-safe flying RC channels listed AMA Phase-In Plan can used together combination provid ing equipment use adequate technical basis See column MA May 1985 pp 38-39 Interference can happen time reasons beyond con trol other hand experience proves some combinations likely produce interferences others fore can argued safer group Brown/White RCI2 Yellow/ White because well-known poten tial image interference What grouping actually does make flying poor-quality equipment possible Continued page 34 July1985 33 looked smaller theni Christopher Myers Simpuise transmitter Lmodif led Galloping Ghost configurationrests beside complete flight pack consisting Bentert actuator Aibin receiver two aspirin-sized MS-76 batteries George dusted f gear photo surprised find Aibin receiver least six times iargr servo amplifier Cannon CE-S proportional servol Fifteen years aa date manufacture R look difference capabilities Aibin rece ver foreground very wide-band regenerative AM tone receiver no crystal capabie operating servothe Bentert rotary actuatorwhich via Galloping Ghost operation gives approximation two channels proportional control background Kraft KPR-8FDS synthesized-frequency FM receiver capable controiling eight independent proportional servos can switchselected receive 49 narrow-band RF channels Its synthesizer capable producingwith precision 100 Hz George addresses concept parallel redundant control systems column example pr battery system Kraft Hell-radio transmitter black box rear transmitter SR Batteries stick-on 8-cell battery pack reserve power can switch selected needed Piggy Back pack also makes convenient transmitter stand See SRs ad address telephone number CORBEN SUPEP ACE 1/48 SCALE MODEL KIT First planned series 1/48 scale aircraft models 1935 Corben Super-Ace single-seat sportplane powered Ford Model engine KIT FEATURES INJECTION-MOLDED PARTS COMPREHENSIVE INSTRUCTIONS MONOFILAMENT RIGGING DECALS FOR MARKINGS DEPT MA 92069 Geesg9 d gned Turnaround Pattern 4o00ea1 etai add $a$ ENA CJt pa o DEL AIRCRAFT SC0 aP0 Box 1902Greenville TX 75401214 454-6441 Similarly might tie together Brown/ White RC38 Blue/White RC42 Red/White RC46 Purple/White RC5O Orange/White RC54 avoid potential interferences can generated frequency differences half common IF ie 2275 kHz half 455 kHz have strong local TV4 might want tie together Orange/White ROW discontinue use RC44 entirely addition may want avoid situation three adjacent RC channels operating same time like RC38 RC4O RC42 might consider tieing pairs pins together RC38 RC4O RC42 RC44 RC46 RC48 RC5O RC52 RC54 RC56 would insure three sequence would never operate same time thus avoiding possible Third Order IM problems takeoff landing above may avoid lot possible trouble will need five 5 pins cover whole 72 MHz spectrum 1 BN/WH Y/WH RCl2 RC38 2 BL/WH RC42 RCA4 3 R/WH RC46 RC48 4 PUR/WH RC5O RC52 5 OR/WH RC4O RC54 RC56 Since five large powered airplanes air same time might con sidered lot five pins might enough would have larger margin safety would case uncoupled pins difference between Safe Safer hard quantify Most interferences encounter seem generated other modelers unat tended transmitters have left turned ON car boat people use Aircraft Only fre quencies What can done about gave some ideas last month Another good solution car boat problem would multiple parallel RF transmissions possible use several RC transmitter frequencies simul taneously control model Grum man X-29 carries three parallel computers pilot work its flight controls little work transmitter could made radiate RC channels tied together above eg BN/WH onboard computer could compare sig nals coming out four receivers detect discard signals receiv ers suffering interference would cost would safer chances finding another transmitter working four operat ing frequencies very much less chance finding just thats youve got point ways get away present RC system design string single-point failure sites use wealth RC channels begin parallel-redundant oper Continued page 129 34 Model Aviation N NEW SEND $1 FOR COMPLETE CATALOG 181 PAWNEE STREET SAN MARCOS CALIFORNIA GOLDEN AGE SERIES 13311 Beach Ave na Del Rey CA 2 821-6242 i LIONS BONN Ultimate Fun Fly Competition Model Ideal Sunday Flyer Excellent OS 65 PS ptIonally slow land ing speed le enough 1st AIleron model easily framed less U hrs. balsa raft plywood construction ed full sise plans EngIne45 61 Wingspan62 Length OA54 WIng Area850 sq Weight Sf 6 Lbs Wing LoadIng15 17 ox Designed Uob Lame kit market sold satisfaction guarantee money back LIST PRICE 94 S 5995 Introductory prIce offor limIted time Prepald Continental USA Texas Residents Add 5% Sales Tax Sand Money Orders Cashiers Check Next Day Shipping Allow 2 Weeks personal checks clear Sorry no COD Curtis Model Aircraft 3002 M Canterbury Circle Sherman Texas 75090 AC 214-U936155 High-speed maneuvering can cause unsupported tubes distort interfere control Finish MonoKote recommended wood surfaces K&B paint fuselage Alternately other finishes could considered weight buildup should avoided F3B models tend relatively heavy adding unneces sary finish weight Installation flap aileron cables installed per plans servo arrangement will have close photographs Kraft KPS-24 servos used prototype because have high torque tight centering aileron flap servos in-line rudder stabilator servos across in-line servos mounted plywood tray make installation removal easier other servos rails Ball links used attach flap aileron linkage links snapped forefinger link easily unsnapped placing small flat-blade screwdriver underneath twisting Aileron differential adjusted take-off point servo wheel Flying Hand toss model few times check out control sensitivity Hook winch build up fairly large line tension before launching recom mended become familiar Europa before using flaps large degree very easy use too much flap actually decrease performance rather increase Europa can also successfully launched high-start word cau tion use heavy-duty high-start stretch minimum 12 pounds pull Europa light airplane Speed runs should first flown out ballast get feel ship Slowly add ballast find highest speed point Remember keep nose down turns avoid losing momen tum Split-S turns effective turns two practice altitude first Radio Technique/Myers Continued page 34 ations RC flying will become safer best results everything should parallel redundant transmitter batteries servos plane Well frIends readers weve covered lot ground column started ultra-simple receiver no larger thumbnail have progressed through discussion possible advan tages obtained grouping RC channels concepts safer RC system on-board sampling com puter multiple parallel redundancy doesnt exist yet Weve looked what what might tip hat John Preston have talked little philosophy hope youve enjoyed Keep writing George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Toledo/Pruss Continued page 38 already have set good track record Davey also manufactures Sport Winch Powrzoom Winch Hobby Lobby rare Sailplanes Germany Hobby Lobbys line will hard top Schulgleiter SG-38 kit masterpiece full choice woods de tailed fittings thatsells for$128 -scale has span 102 area 1627 sq m also carry Gnmau Baby Reiher all-fiberglass state-of-theart Speed Astir spans over 12 ft latter priced $680 Bob Martin showed another Two-Meter bird called Pussycat has simple straightforward construction very tractive linesdesigned both Thermal Slope Soaring MEN Model Engineering Nor walk Dwight Holley F3B World Champion 1981 Dwights basically all-wood model caused fiberglass school construction sit up take notice Dwights Gobbler avail able MEN did everything glass ships did except better has 114 July 1985 129
Edition: Model Aviation - 1985/07
Page Numbers: 32, 33, 34, 129
Radio Technique George M Myers RC INSECTS ETC Dr Franklin H Meyer DDS 8014 Gowanda State Rd Eden NY 14057 wrote letter just has shared Dear George 1 am especially interested ultraminiature RC problem find source ultra-miniature equipment Remember Albin Superregen receiver May 1968 AAM built 010 aircraft using MS76 Silver Oxide batteries Bentert Actuator never did get consistent enough control happy receiver weighed six actuator 65 grams Surely have advances state art havent found Can help goal CO-2-powered Peanut Scale RC Ill keep posted put together Thanks Now letter strikes responsive chord heart son Christopher 12 years old built Albin receiver put service Chris Testors Simpulse transmit ter Chris designed first successful RC model around rig Cox 010-powered Curtis Robin built /16 sheet balsa profiles copied Guillow rubber-scale plan Chris copied standard RC construction techniques using balsa box fuselage plywood firewall etc flight pack mounted stick could easily moved plane plane modified stick trans mitter Chris Rudder Ele vator control way Galloping Ghost setup wings plugged fuse lage lift struts functional held balsa pins lot fun model 010 too powerful plane made exhaust restrictor engine flew 425 x 2 prop meant 020 engine Later Chris designed built Sailplane 18-in wingspan also flew radio control Great Guru micro-RC days Dave Robelin Peanut Scale RC Sperry Messinger always supposed next proj ect rig still own keep misplacing book plans Frank youre bringing back lot pleas ant old memories Today Bill Cannon best bet micro-RC Contact him Cannon R/C Systems 13400-26 Saticoy Street North Hollywood CA 91605 213 764-1488 Oh well thats enough reminiscing sup pose Its time get back work next letter Norm Orcutt Olean NY represents several including old friend Art Cervenka Florida Ill let Norm state problem Dear George 1 work STARS Frequency Board during Scale Rally held year Olean airport problem. group new old Cana dian frequencies manner avoids clashing What safest way set up board past have grouped several frequencies pin eg Purple/White RC5O 72800 [Canada] 150 fliers present last year 20 fliers pin system worked quite wait use pin guess what really want know have bunch frequencies would safe operate pin per frequency .What got wondering about fact nobody weekly club flying sessions gives frequency groupings second thought Come up see us July 6 7 Thanks Norm youre trying put spot first place Canadians are*ft following AMA Phase-In Plan 32 Model Aviation Tom Hunts terrific Grumman F14 Sport Scale ship Above display WRAM show Would believe just fIve days before show Tom sand paint job back primer because paint dried wrong color Since also worked normal 8hour days before show have wonder much sleeping did week Power two Kress RK740 ducted fan units 05 46s scene below Toms basement Ross McMullen keeps hands safely pockets Tom demon strates power F14s wingsweeping mechanism Model %scaie new fan units model has thrusttoweight ratio better 11 means can accelerate going straight up have essentially thrown 50 new frequencies open use excepting side Hz old frequen cies Thus RC5O illegal frequency Canada want get along anyway Im assuming STARS Rally will sanctioned AMA although dont see listed contest calendar May 1985 issue purpose AMA sanction guarantee protected drawing area securing AMA mem bers contestants make additional insurance available organizers contest want protection AMA must follow its rules Therefore frequencies specified AMA Phase-In Plan should used contest Since AMA rules work honor system Contest Director has lot latitude available interpreting enforcing rules Contest Director can work out whatever local options finds necessary real serious argument gets started AMA has several options open AMA can remove its sanction lift clubs charter and/or expel AMA members just cause No membership nsurance have voices raised time time wanted AMA insurance tied use RC channels specified AMA Phase-In Plan have argued against idea basis FCC sets rules use frequencies AMA can set rules AMA contests time insurance coverage tied following Phase-In Plan However should aware precondi tion obtaining valid AMA sanction Contest Director agrees follow AMA Rulesincluding Phase Plan found back rule book Since AMA insurance tied Phase-In Plan members can insured event accident caused offfrequency operation whether off-fre quency operation occurs through igno rance carelessness deliberate actions Conversely some time future let someone tie insurance directly use frequencies specified AMA Phase-In Plan insurance compa ny would able back away pay ment could prove transmitter drifted off its assigned frequency whether aware mind insurance accidents accidents happen dont have facts So say lets keep insurance covers accidents avoiding mention Phase-In Plan frequencies youll covered shot down Canadian About grouping frequenices Frequency-grouping done increase margins safety avoiding poten tial interferences no such thing totally-safe flying RC channels listed AMA Phase-In Plan can used together combination provid ing equipment use adequate technical basis See column MA May 1985 pp 38-39 Interference can happen time reasons beyond con trol other hand experience proves some combinations likely produce interferences others fore can argued safer group Brown/White RCI2 Yellow/ White because well-known poten tial image interference What grouping actually does make flying poor-quality equipment possible Continued page 34 July1985 33 looked smaller theni Christopher Myers Simpuise transmitter Lmodif led Galloping Ghost configurationrests beside complete flight pack consisting Bentert actuator Aibin receiver two aspirin-sized MS-76 batteries George dusted f gear photo surprised find Aibin receiver least six times iargr servo amplifier Cannon CE-S proportional servol Fifteen years aa date manufacture R look difference capabilities Aibin rece ver foreground very wide-band regenerative AM tone receiver no crystal capabie operating servothe Bentert rotary actuatorwhich via Galloping Ghost operation gives approximation two channels proportional control background Kraft KPR-8FDS synthesized-frequency FM receiver capable controiling eight independent proportional servos can switchselected receive 49 narrow-band RF channels Its synthesizer capable producingwith precision 100 Hz George addresses concept parallel redundant control systems column example pr battery system Kraft Hell-radio transmitter black box rear transmitter SR Batteries stick-on 8-cell battery pack reserve power can switch selected needed Piggy Back pack also makes convenient transmitter stand See SRs ad address telephone number CORBEN SUPEP ACE 1/48 SCALE MODEL KIT First planned series 1/48 scale aircraft models 1935 Corben Super-Ace single-seat sportplane powered Ford Model engine KIT FEATURES INJECTION-MOLDED PARTS COMPREHENSIVE INSTRUCTIONS MONOFILAMENT RIGGING DECALS FOR MARKINGS DEPT MA 92069 Geesg9 d gned Turnaround Pattern 4o00ea1 etai add $a$ ENA CJt pa o DEL AIRCRAFT SC0 aP0 Box 1902Greenville TX 75401214 454-6441 Similarly might tie together Brown/ White RC38 Blue/White RC42 Red/White RC46 Purple/White RC5O Orange/White RC54 avoid potential interferences can generated frequency differences half common IF ie 2275 kHz half 455 kHz have strong local TV4 might want tie together Orange/White ROW discontinue use RC44 entirely addition may want avoid situation three adjacent RC channels operating same time like RC38 RC4O RC42 might consider tieing pairs pins together RC38 RC4O RC42 RC44 RC46 RC48 RC5O RC52 RC54 RC56 would insure three sequence would never operate same time thus avoiding possible Third Order IM problems takeoff landing above may avoid lot possible trouble will need five 5 pins cover whole 72 MHz spectrum 1 BN/WH Y/WH RCl2 RC38 2 BL/WH RC42 RCA4 3 R/WH RC46 RC48 4 PUR/WH RC5O RC52 5 OR/WH RC4O RC54 RC56 Since five large powered airplanes air same time might con sidered lot five pins might enough would have larger margin safety would case uncoupled pins difference between Safe Safer hard quantify Most interferences encounter seem generated other modelers unat tended transmitters have left turned ON car boat people use Aircraft Only fre quencies What can done about gave some ideas last month Another good solution car boat problem would multiple parallel RF transmissions possible use several RC transmitter frequencies simul taneously control model Grum man X-29 carries three parallel computers pilot work its flight controls little work transmitter could made radiate RC channels tied together above eg BN/WH onboard computer could compare sig nals coming out four receivers detect discard signals receiv ers suffering interference would cost would safer chances finding another transmitter working four operat ing frequencies very much less chance finding just thats youve got point ways get away present RC system design string single-point failure sites use wealth RC channels begin parallel-redundant oper Continued page 129 34 Model Aviation N NEW SEND $1 FOR COMPLETE CATALOG 181 PAWNEE STREET SAN MARCOS CALIFORNIA GOLDEN AGE SERIES 13311 Beach Ave na Del Rey CA 2 821-6242 i LIONS BONN Ultimate Fun Fly Competition Model Ideal Sunday Flyer Excellent OS 65 PS ptIonally slow land ing speed le enough 1st AIleron model easily framed less U hrs. balsa raft plywood construction ed full sise plans EngIne45 61 Wingspan62 Length OA54 WIng Area850 sq Weight Sf 6 Lbs Wing LoadIng15 17 ox Designed Uob Lame kit market sold satisfaction guarantee money back LIST PRICE 94 S 5995 Introductory prIce offor limIted time Prepald Continental USA Texas Residents Add 5% Sales Tax Sand Money Orders Cashiers Check Next Day Shipping Allow 2 Weeks personal checks clear Sorry no COD Curtis Model Aircraft 3002 M Canterbury Circle Sherman Texas 75090 AC 214-U936155 High-speed maneuvering can cause unsupported tubes distort interfere control Finish MonoKote recommended wood surfaces K&B paint fuselage Alternately other finishes could considered weight buildup should avoided F3B models tend relatively heavy adding unneces sary finish weight Installation flap aileron cables installed per plans servo arrangement will have close photographs Kraft KPS-24 servos used prototype because have high torque tight centering aileron flap servos in-line rudder stabilator servos across in-line servos mounted plywood tray make installation removal easier other servos rails Ball links used attach flap aileron linkage links snapped forefinger link easily unsnapped placing small flat-blade screwdriver underneath twisting Aileron differential adjusted take-off point servo wheel Flying Hand toss model few times check out control sensitivity Hook winch build up fairly large line tension before launching recom mended become familiar Europa before using flaps large degree very easy use too much flap actually decrease performance rather increase Europa can also successfully launched high-start word cau tion use heavy-duty high-start stretch minimum 12 pounds pull Europa light airplane Speed runs should first flown out ballast get feel ship Slowly add ballast find highest speed point Remember keep nose down turns avoid losing momen tum Split-S turns effective turns two practice altitude first Radio Technique/Myers Continued page 34 ations RC flying will become safer best results everything should parallel redundant transmitter batteries servos plane Well frIends readers weve covered lot ground column started ultra-simple receiver no larger thumbnail have progressed through discussion possible advan tages obtained grouping RC channels concepts safer RC system on-board sampling com puter multiple parallel redundancy doesnt exist yet Weve looked what what might tip hat John Preston have talked little philosophy hope youve enjoyed Keep writing George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Toledo/Pruss Continued page 38 already have set good track record Davey also manufactures Sport Winch Powrzoom Winch Hobby Lobby rare Sailplanes Germany Hobby Lobbys line will hard top Schulgleiter SG-38 kit masterpiece full choice woods de tailed fittings thatsells for$128 -scale has span 102 area 1627 sq m also carry Gnmau Baby Reiher all-fiberglass state-of-theart Speed Astir spans over 12 ft latter priced $680 Bob Martin showed another Two-Meter bird called Pussycat has simple straightforward construction very tractive linesdesigned both Thermal Slope Soaring MEN Model Engineering Nor walk Dwight Holley F3B World Champion 1981 Dwights basically all-wood model caused fiberglass school construction sit up take notice Dwights Gobbler avail able MEN did everything glass ships did except better has 114 July 1985 129
Edition: Model Aviation - 1985/07
Page Numbers: 32, 33, 34, 129
Radio Technique George M Myers RC INSECTS ETC Dr Franklin H Meyer DDS 8014 Gowanda State Rd Eden NY 14057 wrote letter just has shared Dear George 1 am especially interested ultraminiature RC problem find source ultra-miniature equipment Remember Albin Superregen receiver May 1968 AAM built 010 aircraft using MS76 Silver Oxide batteries Bentert Actuator never did get consistent enough control happy receiver weighed six actuator 65 grams Surely have advances state art havent found Can help goal CO-2-powered Peanut Scale RC Ill keep posted put together Thanks Now letter strikes responsive chord heart son Christopher 12 years old built Albin receiver put service Chris Testors Simpulse transmit ter Chris designed first successful RC model around rig Cox 010-powered Curtis Robin built /16 sheet balsa profiles copied Guillow rubber-scale plan Chris copied standard RC construction techniques using balsa box fuselage plywood firewall etc flight pack mounted stick could easily moved plane plane modified stick trans mitter Chris Rudder Ele vator control way Galloping Ghost setup wings plugged fuse lage lift struts functional held balsa pins lot fun model 010 too powerful plane made exhaust restrictor engine flew 425 x 2 prop meant 020 engine Later Chris designed built Sailplane 18-in wingspan also flew radio control Great Guru micro-RC days Dave Robelin Peanut Scale RC Sperry Messinger always supposed next proj ect rig still own keep misplacing book plans Frank youre bringing back lot pleas ant old memories Today Bill Cannon best bet micro-RC Contact him Cannon R/C Systems 13400-26 Saticoy Street North Hollywood CA 91605 213 764-1488 Oh well thats enough reminiscing sup pose Its time get back work next letter Norm Orcutt Olean NY represents several including old friend Art Cervenka Florida Ill let Norm state problem Dear George 1 work STARS Frequency Board during Scale Rally held year Olean airport problem. group new old Cana dian frequencies manner avoids clashing What safest way set up board past have grouped several frequencies pin eg Purple/White RC5O 72800 [Canada] 150 fliers present last year 20 fliers pin system worked quite wait use pin guess what really want know have bunch frequencies would safe operate pin per frequency .What got wondering about fact nobody weekly club flying sessions gives frequency groupings second thought Come up see us July 6 7 Thanks Norm youre trying put spot first place Canadians are*ft following AMA Phase-In Plan 32 Model Aviation Tom Hunts terrific Grumman F14 Sport Scale ship Above display WRAM show Would believe just fIve days before show Tom sand paint job back primer because paint dried wrong color Since also worked normal 8hour days before show have wonder much sleeping did week Power two Kress RK740 ducted fan units 05 46s scene below Toms basement Ross McMullen keeps hands safely pockets Tom demon strates power F14s wingsweeping mechanism Model %scaie new fan units model has thrusttoweight ratio better 11 means can accelerate going straight up have essentially thrown 50 new frequencies open use excepting side Hz old frequen cies Thus RC5O illegal frequency Canada want get along anyway Im assuming STARS Rally will sanctioned AMA although dont see listed contest calendar May 1985 issue purpose AMA sanction guarantee protected drawing area securing AMA mem bers contestants make additional insurance available organizers contest want protection AMA must follow its rules Therefore frequencies specified AMA Phase-In Plan should used contest Since AMA rules work honor system Contest Director has lot latitude available interpreting enforcing rules Contest Director can work out whatever local options finds necessary real serious argument gets started AMA has several options open AMA can remove its sanction lift clubs charter and/or expel AMA members just cause No membership nsurance have voices raised time time wanted AMA insurance tied use RC channels specified AMA Phase-In Plan have argued against idea basis FCC sets rules use frequencies AMA can set rules AMA contests time insurance coverage tied following Phase-In Plan However should aware precondi tion obtaining valid AMA sanction Contest Director agrees follow AMA Rulesincluding Phase Plan found back rule book Since AMA insurance tied Phase-In Plan members can insured event accident caused offfrequency operation whether off-fre quency operation occurs through igno rance carelessness deliberate actions Conversely some time future let someone tie insurance directly use frequencies specified AMA Phase-In Plan insurance compa ny would able back away pay ment could prove transmitter drifted off its assigned frequency whether aware mind insurance accidents accidents happen dont have facts So say lets keep insurance covers accidents avoiding mention Phase-In Plan frequencies youll covered shot down Canadian About grouping frequenices Frequency-grouping done increase margins safety avoiding poten tial interferences no such thing totally-safe flying RC channels listed AMA Phase-In Plan can used together combination provid ing equipment use adequate technical basis See column MA May 1985 pp 38-39 Interference can happen time reasons beyond con trol other hand experience proves some combinations likely produce interferences others fore can argued safer group Brown/White RCI2 Yellow/ White because well-known poten tial image interference What grouping actually does make flying poor-quality equipment possible Continued page 34 July1985 33 looked smaller theni Christopher Myers Simpuise transmitter Lmodif led Galloping Ghost configurationrests beside complete flight pack consisting Bentert actuator Aibin receiver two aspirin-sized MS-76 batteries George dusted f gear photo surprised find Aibin receiver least six times iargr servo amplifier Cannon CE-S proportional servol Fifteen years aa date manufacture R look difference capabilities Aibin rece ver foreground very wide-band regenerative AM tone receiver no crystal capabie operating servothe Bentert rotary actuatorwhich via Galloping Ghost operation gives approximation two channels proportional control background Kraft KPR-8FDS synthesized-frequency FM receiver capable controiling eight independent proportional servos can switchselected receive 49 narrow-band RF channels Its synthesizer capable producingwith precision 100 Hz George addresses concept parallel redundant control systems column example pr battery system Kraft Hell-radio transmitter black box rear transmitter SR Batteries stick-on 8-cell battery pack reserve power can switch selected needed Piggy Back pack also makes convenient transmitter stand See SRs ad address telephone number CORBEN SUPEP ACE 1/48 SCALE MODEL KIT First planned series 1/48 scale aircraft models 1935 Corben Super-Ace single-seat sportplane powered Ford Model engine KIT FEATURES INJECTION-MOLDED PARTS COMPREHENSIVE INSTRUCTIONS MONOFILAMENT RIGGING DECALS FOR MARKINGS DEPT MA 92069 Geesg9 d gned Turnaround Pattern 4o00ea1 etai add $a$ ENA CJt pa o DEL AIRCRAFT SC0 aP0 Box 1902Greenville TX 75401214 454-6441 Similarly might tie together Brown/ White RC38 Blue/White RC42 Red/White RC46 Purple/White RC5O Orange/White RC54 avoid potential interferences can generated frequency differences half common IF ie 2275 kHz half 455 kHz have strong local TV4 might want tie together Orange/White ROW discontinue use RC44 entirely addition may want avoid situation three adjacent RC channels operating same time like RC38 RC4O RC42 might consider tieing pairs pins together RC38 RC4O RC42 RC44 RC46 RC48 RC5O RC52 RC54 RC56 would insure three sequence would never operate same time thus avoiding possible Third Order IM problems takeoff landing above may avoid lot possible trouble will need five 5 pins cover whole 72 MHz spectrum 1 BN/WH Y/WH RCl2 RC38 2 BL/WH RC42 RCA4 3 R/WH RC46 RC48 4 PUR/WH RC5O RC52 5 OR/WH RC4O RC54 RC56 Since five large powered airplanes air same time might con sidered lot five pins might enough would have larger margin safety would case uncoupled pins difference between Safe Safer hard quantify Most interferences encounter seem generated other modelers unat tended transmitters have left turned ON car boat people use Aircraft Only fre quencies What can done about gave some ideas last month Another good solution car boat problem would multiple parallel RF transmissions possible use several RC transmitter frequencies simul taneously control model Grum man X-29 carries three parallel computers pilot work its flight controls little work transmitter could made radiate RC channels tied together above eg BN/WH onboard computer could compare sig nals coming out four receivers detect discard signals receiv ers suffering interference would cost would safer chances finding another transmitter working four operat ing frequencies very much less chance finding just thats youve got point ways get away present RC system design string single-point failure sites use wealth RC channels begin parallel-redundant oper Continued page 129 34 Model Aviation N NEW SEND $1 FOR COMPLETE CATALOG 181 PAWNEE STREET SAN MARCOS CALIFORNIA GOLDEN AGE SERIES 13311 Beach Ave na Del Rey CA 2 821-6242 i LIONS BONN Ultimate Fun Fly Competition Model Ideal Sunday Flyer Excellent OS 65 PS ptIonally slow land ing speed le enough 1st AIleron model easily framed less U hrs. balsa raft plywood construction ed full sise plans EngIne45 61 Wingspan62 Length OA54 WIng Area850 sq Weight Sf 6 Lbs Wing LoadIng15 17 ox Designed Uob Lame kit market sold satisfaction guarantee money back LIST PRICE 94 S 5995 Introductory prIce offor limIted time Prepald Continental USA Texas Residents Add 5% Sales Tax Sand Money Orders Cashiers Check Next Day Shipping Allow 2 Weeks personal checks clear Sorry no COD Curtis Model Aircraft 3002 M Canterbury Circle Sherman Texas 75090 AC 214-U936155 High-speed maneuvering can cause unsupported tubes distort interfere control Finish MonoKote recommended wood surfaces K&B paint fuselage Alternately other finishes could considered weight buildup should avoided F3B models tend relatively heavy adding unneces sary finish weight Installation flap aileron cables installed per plans servo arrangement will have close photographs Kraft KPS-24 servos used prototype because have high torque tight centering aileron flap servos in-line rudder stabilator servos across in-line servos mounted plywood tray make installation removal easier other servos rails Ball links used attach flap aileron linkage links snapped forefinger link easily unsnapped placing small flat-blade screwdriver underneath twisting Aileron differential adjusted take-off point servo wheel Flying Hand toss model few times check out control sensitivity Hook winch build up fairly large line tension before launching recom mended become familiar Europa before using flaps large degree very easy use too much flap actually decrease performance rather increase Europa can also successfully launched high-start word cau tion use heavy-duty high-start stretch minimum 12 pounds pull Europa light airplane Speed runs should first flown out ballast get feel ship Slowly add ballast find highest speed point Remember keep nose down turns avoid losing momen tum Split-S turns effective turns two practice altitude first Radio Technique/Myers Continued page 34 ations RC flying will become safer best results everything should parallel redundant transmitter batteries servos plane Well frIends readers weve covered lot ground column started ultra-simple receiver no larger thumbnail have progressed through discussion possible advan tages obtained grouping RC channels concepts safer RC system on-board sampling com puter multiple parallel redundancy doesnt exist yet Weve looked what what might tip hat John Preston have talked little philosophy hope youve enjoyed Keep writing George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Toledo/Pruss Continued page 38 already have set good track record Davey also manufactures Sport Winch Powrzoom Winch Hobby Lobby rare Sailplanes Germany Hobby Lobbys line will hard top Schulgleiter SG-38 kit masterpiece full choice woods de tailed fittings thatsells for$128 -scale has span 102 area 1627 sq m also carry Gnmau Baby Reiher all-fiberglass state-of-theart Speed Astir spans over 12 ft latter priced $680 Bob Martin showed another Two-Meter bird called Pussycat has simple straightforward construction very tractive linesdesigned both Thermal Slope Soaring MEN Model Engineering Nor walk Dwight Holley F3B World Champion 1981 Dwights basically all-wood model caused fiberglass school construction sit up take notice Dwights Gobbler avail able MEN did everything glass ships did except better has 114 July 1985 129