Radio Control Giant Scale John de Vries Colonel USAF Ret WHEN get right down Giant Scale radio-controlled model builders unique breed constantly accepting challenges Now may appear big deal us stop minute think about First of us build models plans although increasing number Giant Scale kits coming onto market Well check advertisements magazines send off hard-earned money several sheets paper model-airplane-shaped mark ings over Well spend hours local hobby shop choosing materials accessories well go home begin laborious proJerry Van Heeswyks -scale Jodel F-12 homebuilt L spans 9 ft scratch-built own drawings Thirty-two-pounder uses 37-cuin Sachs engine Pou de Ciei Flying Flea quarter-scale R its builder Bob Higgins Broomfield CO Seven-pound craft uses 05 48 Surpass four-stroker power Golden Age homebuilt France built aeronuts nations Paul Samaras Lakewood CO Giant-size sport model RoadRunner L its Supertigre 3000 engine turns barn-burner Col de Vries raves about model column tells order Alysas R Joan L Dale Phony Phokkera Giant Fly Baby Bipe Sacha-Doimer 31 moves Don Harris smoke system traces its path Alycas now touring country 50 Model Aviation Vail Kinsey IMAA Chapter 90 56-in-span replica 1936 Dreamer homebuilt Fourteen-pound bird powered ST 3000 Covering both MonoKote SolarTex Ed Carrolls latest design Punkin Waco look-alike isnt scale flies like fuily-aerobatic homesick angell cess making patterns cutting out parts sembling model thats quarter size real larger Second less forced becom ing aeronautical engineers No matter com plete drawings working theres always degree horseback engineering re quired us build Giants example Installing radio Giant isnt two-hour job have consider such things control actua tor runs multiple servo locations extending servo leads feet adding redundant battery supplies shielding receivers engine ignition noise None engineering tasks face compatriots build small Third challenged sheer size models build Just getting model fly ing field part Sticking Giant mod ern automobile challenge major proportions meet us opt mod els disassemble components thatll fit Volks Toyota adds construc tion challenge delays first flight day halt screw otherwise fit big pieces bigger RC model Good Friend Dick Smith developed solu tion problem science took Stearman model out fly fitted Ford just way Wings fuselage tail feathers field box its place Because wife Betty always accompanies Dick field arrangement leave seat front car Like others us Dick decided discretion better part valor bought himself Chrysler Corp minivanthus assuring Betty place car having converse Dick over Sachs-Dolmer other gas burner Fourth challenge flying Giants time effort cold hard cash represented first flight miniature radio-controlled aircraft may biggest chal lenge Getting up down piece major triumph first flight Out way engine running like should radio wiggling right things right times trims set challenges disap pear aerodynamics Giant model aircraft take over pure pleasure replaces chal lenges Alls can say Try Youll like it' Turning prosaic less philosophic considerations Giant scene want give peek futurejust case youre looking new model subject Atlantas Bill Effinger WE Technical Servi ces 526 Lovell Terrace Atlanta GA 30328 has some delectable drawings drafting board Hes recently completed dandy set Buster plans working /3-scale J-3 Cub B I-G Quadra 35 40 cant wait get set drawings Curtiss P 1 first Hawks Although Bills list potential subjects Continued page 149 Cl-I tiectronics Breokerless CD Ignition System can installed engine 15 large chainsaw type new 90 15 two four stroke engines perfect converting CH Ignition system ore new kits plans airplanes just becoming available perfect size engine Four stroke engines beautiful ign Detonation death four stroke enginewhen control engine timing can stop detonation makes engine run much cooler 8 develops power plus no kickback & very low idle CH system used engine experts Maynard Hill George Aidridge Doran Hiatt Cliff Bennett Otto Bernhart Maynard Hill used CH system last two world records Available two four stroke engines single twin cylinder Throttle Coupled Spark Advance kits available popular engines Custom engine set-up available Call write price quote Now IETCl electronic timing control information brochure price list send *1 00 CH Electronics Inc Box 1732 Riverton WY 82501 Phone 307-857-6897 December 1987 51 DISTRIBUTED BY 475AVAILABLE AT AMERICAS FINEST HOBBY SHOPS END W8Y5ZND 75s5 tan Gaboel Road cadeo cA 93422 5-1717 Capacitive Discharge Ignition column March 1987 MA Finally increasing trend toward highly detailed kit instruction booklets aid first-time model builders yes some readers have never glued two pieces balsa togetherthey tell Amptique kit could made better some written instructions sketches photos fret notfor outstanding kit tally worthy consideration beginning builder can always check some local experienced modelers questions may have building lieve designed-for-Electric plane will come extremely popular Which gives idea Maybe can talk KRC adding Amptique event next year s Electric Fly Well see Wire connectors above-referenced Keith Shawa Research Physicist Univer sity Michiganran some comparative tests several popular connectors various kinds wire particular wanted compare connec tor contact resistance wire resistance Keith measured voltage drops losses connectors under heavy current conditions associated operation models used test current level 20 amps measured voltages appearing across connector elements determined contact resistance version Ohms law thus Resistance age divided Current R connectors tested contact resistan ces CONTACT RESISTANCE milliohms Sermos Adams Jomar Deans 4-pin Tamiya Molex Astro gold 027005 035005 045005 09001 1401 4005 Using similar technique Keith compared resistance variety wire brands thus BRAND Jomar Belden Astro Jomar Lamp Cord GAUGE RESISTANCE milliohms/ft 1218 14277 13284 16444 16594 What does mean Its easy Connector contact resistance wire resistance causes volt age loss motor current flows means some battery voltage never gets motorwhich after its supposed go some losses Electric system cant anything aboutlike losses Ni-Cd cells fuses necessary make work does pay reduce can control much possible Read relevant real-life experience Just show can really add up something significant just helped friend fellow club member troubleshoot very unimpressive co balt geared 05-powered Viking seven 12 Ah cells SC4 speed control particularly heavy should ordinarily fly great hardly flew made some quick measurements field total volt age loss nearly two volts between battery terminals motor terminals checking further clear instal lation unusually large amount wire cause rather long separations motor battery switch speed control etc Furthermore wire used varied gauges consisted pieces varied connectors join ing together Guaranteed trouble offered take plane home tidy up installation done measured less 500 millivolts drop battery motor including speed control wiring fuse switch motor loaded draw 20 amps result plane flies just greatlike should see power loss approximately pro portional SQUARE voltage lossso little loss can go long way toward making Electric unimpressive Moral Pay attention wiring installation detailsit can make difference between No Go Go Sermos Snap Connectors Its littleknown fact Sermos Snap Connectors available colors other familiar red black color options available di rect hobby shops fact have some blue green orange yellow-and-white ones variety useful installation connector pair want sure connect wrong things together easy everything either red black Price same$3 per connector pair Now assembly tip finished solder ing wire metal contacts Snap Connectors wipe silver-plated contacts off well solvent such acetone done remove solder flux may likely have coated mating area result little lots contact resistance no contact small brush cotton swab tissue soaked sol vent will good job Dry part another tissue prior installation plastic housing Th-Th-Th-Thats folks end another column have yet include promised final report motor/ prop/battery testing Caliph Sorryit will have wait will say writing have accumulated 231 flights labors ful fill promise Also Ive made another wingwith aileronsbut like Caliph original wing better Anyway just too other items cover herethis being annual issue after Nats issue Ive two months accumulate column material fertile time year happen summer Now close column go back very beginning read what says Write medirectly Please send comment question SASE please Bob Kopski 25 West End Dr Iansdale PA 19446 RC Giant Scale/de Vries Continued page 51 mouthwatering extreme going hold list close chestor Bill would spend time answering letters rather drafting great construction drawings Although subject column Giant Continued page 152 OPS Mmxi 30 designed strictly model use incorporates extra long stroke turn large props heavy scale planes five intake ports Gilnisil plating give better breathing higher RPM along longer cylinder life both statically dynamically balanced comes roller bearings both ends steel rod DellOrto pump carb operates mixture methanol 50b oil proud engine would like learn its qualities Send free engine test December 1987 149 BRAND gsPjPIe 9m*t4 PO Box 26247NEW ORLEANS LA 70186 1-800-535-2568 RC Giant Scale/de Vries Continued page 149 Scale touches large radiocontrolled models big uns repre sent real prototypethere bunch kits drawings such large models available market Most large non-Scale models classified trainers Some just monoplanes designed easy build easy fly Others however called sport models Ive seen best just recently honest about model Im talking about really knocked sox offi Paul Samaras Ken Otto both Chapter 90 IMAA Den ver CO flew RoadRunners Clubs recent All-Plane Rally Pauls photo accompanies columnto give idea what RoadRun ner looks like theres no way anything less in-person view model being flown master pilot can show well bird flies both Paul Ken just such mas ters best part whole exercise complete fumble-fingers like Yours Truly could fly RoadRunner significantly raising adrenalin level bird kitted Fun Fly PO Box 1686 Lander WY 82520 draw ings available plans-builder bird spans 90 takes anything 60 twocycle up ST 3000 Impressive still roamin through Wyoming lets stop off Riverton check peo pIe CH Electronics Inc PO Box 1732 Riverton WY 82501 manufacture CD capacitive discharge ignition systems model engines ranging up biggest Big Bird engines Particularly effective new four-strokers big gas-burners CH s ignition systems turn recalcitrant hummers super-reliable power plants Ed Carroll super stars Giant model firma ment' use em Drop line call 307/332-7630 price quoteto reliablize engine gentle word warning choosing Scale subject duplication Giant size us let hearts rule minds other words embark Scale building project air plane really turns us instanc es however choose subject prototype produced case severely limited single paint job dec oration scheme no big deal dedicated researcher can work considerable hardship casual yet conscientious Giant Scale builder examples what talking about may found among racing airplanes Thirties unique airframe cor responding flamboyant paint job True Golden Age racers appeared decoration scheme year year docu menting changes degree facility may prove back-breaking task same situation applies across board one-off homebuilts well mil itary prototypes appeal us model sub jects License numbers- serial numbers will one-and-only choose what have termed some orphan aircraft Birds like Piper Skycycle civilian side Lockheed Little Dipper military airframe one-and-onlies require very close tention comes detailing painting true Scale appearance duplicated way reduce impact one-off documentation problems follow cardinal rule building Scale model Document before begin construction painting time comes round itll pleasure rather chore Big better flies better too John de Vries 4610 Moffat Ln Colorado Springs CO 80915 RC Old-Timers Continued page 53 some quotes National Aero nautics Newsletter March 1938 June 1935 Hangar 13 received its charter NAA Junior chapter addition chartered groups Junior Birdmen IGMAA During 1936 club active helping organize model club Rockford IL known Pla Wings club now Boys Club Rockford Also April 1937 club formed under coaching Janesville YMCA club now has member ship over 25 Thus three cities Rock ford Janesville Beloit have organized find particular interest illustration manner modeling club activi ties advanced Thirties Notice volvement YMCA adults communities Also have pointed out past columns majority contests organized Gb Model Products 8773 Russet nrive Cincinnati OH 45239 513-385-7398 GMP EPOXIES High Quality Model Construction Giant Kwik Set 6 mm Epoxy 16 oz 1395 Kwlk Set 6 mm Epoxy10 oz 995 Jr Kwik Set 6 mm Epoxy5 oz 595 Half Fast 10mm EpoxylOoz 895 EASY OFF PULLER er tool removing drive washers Flywheels f products sour dealer r direct Add 51 50 postage READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40$13099 Piper Cherokee-259599 Fokker E111-4010799 Fancy Stick-256599 Cessna 172-208999 engine included 3m SUNSHINE HOBBY 17721 South Western Avenue Gardens California 90247 152 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISKN INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 aa GMP AIRCRAFTINSTRUMENTS 80ln3/16 l/43/8&l/2$149 40in3/4&l$149 Dealer Distributor Inquiries Invited
Edition: Model Aviation - 1987/12
Page Numbers: 50, 51, 149, 152
Radio Control Giant Scale John de Vries Colonel USAF Ret WHEN get right down Giant Scale radio-controlled model builders unique breed constantly accepting challenges Now may appear big deal us stop minute think about First of us build models plans although increasing number Giant Scale kits coming onto market Well check advertisements magazines send off hard-earned money several sheets paper model-airplane-shaped mark ings over Well spend hours local hobby shop choosing materials accessories well go home begin laborious proJerry Van Heeswyks -scale Jodel F-12 homebuilt L spans 9 ft scratch-built own drawings Thirty-two-pounder uses 37-cuin Sachs engine Pou de Ciei Flying Flea quarter-scale R its builder Bob Higgins Broomfield CO Seven-pound craft uses 05 48 Surpass four-stroker power Golden Age homebuilt France built aeronuts nations Paul Samaras Lakewood CO Giant-size sport model RoadRunner L its Supertigre 3000 engine turns barn-burner Col de Vries raves about model column tells order Alysas R Joan L Dale Phony Phokkera Giant Fly Baby Bipe Sacha-Doimer 31 moves Don Harris smoke system traces its path Alycas now touring country 50 Model Aviation Vail Kinsey IMAA Chapter 90 56-in-span replica 1936 Dreamer homebuilt Fourteen-pound bird powered ST 3000 Covering both MonoKote SolarTex Ed Carrolls latest design Punkin Waco look-alike isnt scale flies like fuily-aerobatic homesick angell cess making patterns cutting out parts sembling model thats quarter size real larger Second less forced becom ing aeronautical engineers No matter com plete drawings working theres always degree horseback engineering re quired us build Giants example Installing radio Giant isnt two-hour job have consider such things control actua tor runs multiple servo locations extending servo leads feet adding redundant battery supplies shielding receivers engine ignition noise None engineering tasks face compatriots build small Third challenged sheer size models build Just getting model fly ing field part Sticking Giant mod ern automobile challenge major proportions meet us opt mod els disassemble components thatll fit Volks Toyota adds construc tion challenge delays first flight day halt screw otherwise fit big pieces bigger RC model Good Friend Dick Smith developed solu tion problem science took Stearman model out fly fitted Ford just way Wings fuselage tail feathers field box its place Because wife Betty always accompanies Dick field arrangement leave seat front car Like others us Dick decided discretion better part valor bought himself Chrysler Corp minivanthus assuring Betty place car having converse Dick over Sachs-Dolmer other gas burner Fourth challenge flying Giants time effort cold hard cash represented first flight miniature radio-controlled aircraft may biggest chal lenge Getting up down piece major triumph first flight Out way engine running like should radio wiggling right things right times trims set challenges disap pear aerodynamics Giant model aircraft take over pure pleasure replaces chal lenges Alls can say Try Youll like it' Turning prosaic less philosophic considerations Giant scene want give peek futurejust case youre looking new model subject Atlantas Bill Effinger WE Technical Servi ces 526 Lovell Terrace Atlanta GA 30328 has some delectable drawings drafting board Hes recently completed dandy set Buster plans working /3-scale J-3 Cub B I-G Quadra 35 40 cant wait get set drawings Curtiss P 1 first Hawks Although Bills list potential subjects Continued page 149 Cl-I tiectronics Breokerless CD Ignition System can installed engine 15 large chainsaw type new 90 15 two four stroke engines perfect converting CH Ignition system ore new kits plans airplanes just becoming available perfect size engine Four stroke engines beautiful ign Detonation death four stroke enginewhen control engine timing can stop detonation makes engine run much cooler 8 develops power plus no kickback & very low idle CH system used engine experts Maynard Hill George Aidridge Doran Hiatt Cliff Bennett Otto Bernhart Maynard Hill used CH system last two world records Available two four stroke engines single twin cylinder Throttle Coupled Spark Advance kits available popular engines Custom engine set-up available Call write price quote Now IETCl electronic timing control information brochure price list send *1 00 CH Electronics Inc Box 1732 Riverton WY 82501 Phone 307-857-6897 December 1987 51 DISTRIBUTED BY 475AVAILABLE AT AMERICAS FINEST HOBBY SHOPS END W8Y5ZND 75s5 tan Gaboel Road cadeo cA 93422 5-1717 Capacitive Discharge Ignition column March 1987 MA Finally increasing trend toward highly detailed kit instruction booklets aid first-time model builders yes some readers have never glued two pieces balsa togetherthey tell Amptique kit could made better some written instructions sketches photos fret notfor outstanding kit tally worthy consideration beginning builder can always check some local experienced modelers questions may have building lieve designed-for-Electric plane will come extremely popular Which gives idea Maybe can talk KRC adding Amptique event next year s Electric Fly Well see Wire connectors above-referenced Keith Shawa Research Physicist Univer sity Michiganran some comparative tests several popular connectors various kinds wire particular wanted compare connec tor contact resistance wire resistance Keith measured voltage drops losses connectors under heavy current conditions associated operation models used test current level 20 amps measured voltages appearing across connector elements determined contact resistance version Ohms law thus Resistance age divided Current R connectors tested contact resistan ces CONTACT RESISTANCE milliohms Sermos Adams Jomar Deans 4-pin Tamiya Molex Astro gold 027005 035005 045005 09001 1401 4005 Using similar technique Keith compared resistance variety wire brands thus BRAND Jomar Belden Astro Jomar Lamp Cord GAUGE RESISTANCE milliohms/ft 1218 14277 13284 16444 16594 What does mean Its easy Connector contact resistance wire resistance causes volt age loss motor current flows means some battery voltage never gets motorwhich after its supposed go some losses Electric system cant anything aboutlike losses Ni-Cd cells fuses necessary make work does pay reduce can control much possible Read relevant real-life experience Just show can really add up something significant just helped friend fellow club member troubleshoot very unimpressive co balt geared 05-powered Viking seven 12 Ah cells SC4 speed control particularly heavy should ordinarily fly great hardly flew made some quick measurements field total volt age loss nearly two volts between battery terminals motor terminals checking further clear instal lation unusually large amount wire cause rather long separations motor battery switch speed control etc Furthermore wire used varied gauges consisted pieces varied connectors join ing together Guaranteed trouble offered take plane home tidy up installation done measured less 500 millivolts drop battery motor including speed control wiring fuse switch motor loaded draw 20 amps result plane flies just greatlike should see power loss approximately pro portional SQUARE voltage lossso little loss can go long way toward making Electric unimpressive Moral Pay attention wiring installation detailsit can make difference between No Go Go Sermos Snap Connectors Its littleknown fact Sermos Snap Connectors available colors other familiar red black color options available di rect hobby shops fact have some blue green orange yellow-and-white ones variety useful installation connector pair want sure connect wrong things together easy everything either red black Price same$3 per connector pair Now assembly tip finished solder ing wire metal contacts Snap Connectors wipe silver-plated contacts off well solvent such acetone done remove solder flux may likely have coated mating area result little lots contact resistance no contact small brush cotton swab tissue soaked sol vent will good job Dry part another tissue prior installation plastic housing Th-Th-Th-Thats folks end another column have yet include promised final report motor/ prop/battery testing Caliph Sorryit will have wait will say writing have accumulated 231 flights labors ful fill promise Also Ive made another wingwith aileronsbut like Caliph original wing better Anyway just too other items cover herethis being annual issue after Nats issue Ive two months accumulate column material fertile time year happen summer Now close column go back very beginning read what says Write medirectly Please send comment question SASE please Bob Kopski 25 West End Dr Iansdale PA 19446 RC Giant Scale/de Vries Continued page 51 mouthwatering extreme going hold list close chestor Bill would spend time answering letters rather drafting great construction drawings Although subject column Giant Continued page 152 OPS Mmxi 30 designed strictly model use incorporates extra long stroke turn large props heavy scale planes five intake ports Gilnisil plating give better breathing higher RPM along longer cylinder life both statically dynamically balanced comes roller bearings both ends steel rod DellOrto pump carb operates mixture methanol 50b oil proud engine would like learn its qualities Send free engine test December 1987 149 BRAND gsPjPIe 9m*t4 PO Box 26247NEW ORLEANS LA 70186 1-800-535-2568 RC Giant Scale/de Vries Continued page 149 Scale touches large radiocontrolled models big uns repre sent real prototypethere bunch kits drawings such large models available market Most large non-Scale models classified trainers Some just monoplanes designed easy build easy fly Others however called sport models Ive seen best just recently honest about model Im talking about really knocked sox offi Paul Samaras Ken Otto both Chapter 90 IMAA Den ver CO flew RoadRunners Clubs recent All-Plane Rally Pauls photo accompanies columnto give idea what RoadRun ner looks like theres no way anything less in-person view model being flown master pilot can show well bird flies both Paul Ken just such mas ters best part whole exercise complete fumble-fingers like Yours Truly could fly RoadRunner significantly raising adrenalin level bird kitted Fun Fly PO Box 1686 Lander WY 82520 draw ings available plans-builder bird spans 90 takes anything 60 twocycle up ST 3000 Impressive still roamin through Wyoming lets stop off Riverton check peo pIe CH Electronics Inc PO Box 1732 Riverton WY 82501 manufacture CD capacitive discharge ignition systems model engines ranging up biggest Big Bird engines Particularly effective new four-strokers big gas-burners CH s ignition systems turn recalcitrant hummers super-reliable power plants Ed Carroll super stars Giant model firma ment' use em Drop line call 307/332-7630 price quoteto reliablize engine gentle word warning choosing Scale subject duplication Giant size us let hearts rule minds other words embark Scale building project air plane really turns us instanc es however choose subject prototype produced case severely limited single paint job dec oration scheme no big deal dedicated researcher can work considerable hardship casual yet conscientious Giant Scale builder examples what talking about may found among racing airplanes Thirties unique airframe cor responding flamboyant paint job True Golden Age racers appeared decoration scheme year year docu menting changes degree facility may prove back-breaking task same situation applies across board one-off homebuilts well mil itary prototypes appeal us model sub jects License numbers- serial numbers will one-and-only choose what have termed some orphan aircraft Birds like Piper Skycycle civilian side Lockheed Little Dipper military airframe one-and-onlies require very close tention comes detailing painting true Scale appearance duplicated way reduce impact one-off documentation problems follow cardinal rule building Scale model Document before begin construction painting time comes round itll pleasure rather chore Big better flies better too John de Vries 4610 Moffat Ln Colorado Springs CO 80915 RC Old-Timers Continued page 53 some quotes National Aero nautics Newsletter March 1938 June 1935 Hangar 13 received its charter NAA Junior chapter addition chartered groups Junior Birdmen IGMAA During 1936 club active helping organize model club Rockford IL known Pla Wings club now Boys Club Rockford Also April 1937 club formed under coaching Janesville YMCA club now has member ship over 25 Thus three cities Rock ford Janesville Beloit have organized find particular interest illustration manner modeling club activi ties advanced Thirties Notice volvement YMCA adults communities Also have pointed out past columns majority contests organized Gb Model Products 8773 Russet nrive Cincinnati OH 45239 513-385-7398 GMP EPOXIES High Quality Model Construction Giant Kwik Set 6 mm Epoxy 16 oz 1395 Kwlk Set 6 mm Epoxy10 oz 995 Jr Kwik Set 6 mm Epoxy5 oz 595 Half Fast 10mm EpoxylOoz 895 EASY OFF PULLER er tool removing drive washers Flywheels f products sour dealer r direct Add 51 50 postage READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40$13099 Piper Cherokee-259599 Fokker E111-4010799 Fancy Stick-256599 Cessna 172-208999 engine included 3m SUNSHINE HOBBY 17721 South Western Avenue Gardens California 90247 152 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISKN INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 aa GMP AIRCRAFTINSTRUMENTS 80ln3/16 l/43/8&l/2$149 40in3/4&l$149 Dealer Distributor Inquiries Invited
Edition: Model Aviation - 1987/12
Page Numbers: 50, 51, 149, 152
Radio Control Giant Scale John de Vries Colonel USAF Ret WHEN get right down Giant Scale radio-controlled model builders unique breed constantly accepting challenges Now may appear big deal us stop minute think about First of us build models plans although increasing number Giant Scale kits coming onto market Well check advertisements magazines send off hard-earned money several sheets paper model-airplane-shaped mark ings over Well spend hours local hobby shop choosing materials accessories well go home begin laborious proJerry Van Heeswyks -scale Jodel F-12 homebuilt L spans 9 ft scratch-built own drawings Thirty-two-pounder uses 37-cuin Sachs engine Pou de Ciei Flying Flea quarter-scale R its builder Bob Higgins Broomfield CO Seven-pound craft uses 05 48 Surpass four-stroker power Golden Age homebuilt France built aeronuts nations Paul Samaras Lakewood CO Giant-size sport model RoadRunner L its Supertigre 3000 engine turns barn-burner Col de Vries raves about model column tells order Alysas R Joan L Dale Phony Phokkera Giant Fly Baby Bipe Sacha-Doimer 31 moves Don Harris smoke system traces its path Alycas now touring country 50 Model Aviation Vail Kinsey IMAA Chapter 90 56-in-span replica 1936 Dreamer homebuilt Fourteen-pound bird powered ST 3000 Covering both MonoKote SolarTex Ed Carrolls latest design Punkin Waco look-alike isnt scale flies like fuily-aerobatic homesick angell cess making patterns cutting out parts sembling model thats quarter size real larger Second less forced becom ing aeronautical engineers No matter com plete drawings working theres always degree horseback engineering re quired us build Giants example Installing radio Giant isnt two-hour job have consider such things control actua tor runs multiple servo locations extending servo leads feet adding redundant battery supplies shielding receivers engine ignition noise None engineering tasks face compatriots build small Third challenged sheer size models build Just getting model fly ing field part Sticking Giant mod ern automobile challenge major proportions meet us opt mod els disassemble components thatll fit Volks Toyota adds construc tion challenge delays first flight day halt screw otherwise fit big pieces bigger RC model Good Friend Dick Smith developed solu tion problem science took Stearman model out fly fitted Ford just way Wings fuselage tail feathers field box its place Because wife Betty always accompanies Dick field arrangement leave seat front car Like others us Dick decided discretion better part valor bought himself Chrysler Corp minivanthus assuring Betty place car having converse Dick over Sachs-Dolmer other gas burner Fourth challenge flying Giants time effort cold hard cash represented first flight miniature radio-controlled aircraft may biggest chal lenge Getting up down piece major triumph first flight Out way engine running like should radio wiggling right things right times trims set challenges disap pear aerodynamics Giant model aircraft take over pure pleasure replaces chal lenges Alls can say Try Youll like it' Turning prosaic less philosophic considerations Giant scene want give peek futurejust case youre looking new model subject Atlantas Bill Effinger WE Technical Servi ces 526 Lovell Terrace Atlanta GA 30328 has some delectable drawings drafting board Hes recently completed dandy set Buster plans working /3-scale J-3 Cub B I-G Quadra 35 40 cant wait get set drawings Curtiss P 1 first Hawks Although Bills list potential subjects Continued page 149 Cl-I tiectronics Breokerless CD Ignition System can installed engine 15 large chainsaw type new 90 15 two four stroke engines perfect converting CH Ignition system ore new kits plans airplanes just becoming available perfect size engine Four stroke engines beautiful ign Detonation death four stroke enginewhen control engine timing can stop detonation makes engine run much cooler 8 develops power plus no kickback & very low idle CH system used engine experts Maynard Hill George Aidridge Doran Hiatt Cliff Bennett Otto Bernhart Maynard Hill used CH system last two world records Available two four stroke engines single twin cylinder Throttle Coupled Spark Advance kits available popular engines Custom engine set-up available Call write price quote Now IETCl electronic timing control information brochure price list send *1 00 CH Electronics Inc Box 1732 Riverton WY 82501 Phone 307-857-6897 December 1987 51 DISTRIBUTED BY 475AVAILABLE AT AMERICAS FINEST HOBBY SHOPS END W8Y5ZND 75s5 tan Gaboel Road cadeo cA 93422 5-1717 Capacitive Discharge Ignition column March 1987 MA Finally increasing trend toward highly detailed kit instruction booklets aid first-time model builders yes some readers have never glued two pieces balsa togetherthey tell Amptique kit could made better some written instructions sketches photos fret notfor outstanding kit tally worthy consideration beginning builder can always check some local experienced modelers questions may have building lieve designed-for-Electric plane will come extremely popular Which gives idea Maybe can talk KRC adding Amptique event next year s Electric Fly Well see Wire connectors above-referenced Keith Shawa Research Physicist Univer sity Michiganran some comparative tests several popular connectors various kinds wire particular wanted compare connec tor contact resistance wire resistance Keith measured voltage drops losses connectors under heavy current conditions associated operation models used test current level 20 amps measured voltages appearing across connector elements determined contact resistance version Ohms law thus Resistance age divided Current R connectors tested contact resistan ces CONTACT RESISTANCE milliohms Sermos Adams Jomar Deans 4-pin Tamiya Molex Astro gold 027005 035005 045005 09001 1401 4005 Using similar technique Keith compared resistance variety wire brands thus BRAND Jomar Belden Astro Jomar Lamp Cord GAUGE RESISTANCE milliohms/ft 1218 14277 13284 16444 16594 What does mean Its easy Connector contact resistance wire resistance causes volt age loss motor current flows means some battery voltage never gets motorwhich after its supposed go some losses Electric system cant anything aboutlike losses Ni-Cd cells fuses necessary make work does pay reduce can control much possible Read relevant real-life experience Just show can really add up something significant just helped friend fellow club member troubleshoot very unimpressive co balt geared 05-powered Viking seven 12 Ah cells SC4 speed control particularly heavy should ordinarily fly great hardly flew made some quick measurements field total volt age loss nearly two volts between battery terminals motor terminals checking further clear instal lation unusually large amount wire cause rather long separations motor battery switch speed control etc Furthermore wire used varied gauges consisted pieces varied connectors join ing together Guaranteed trouble offered take plane home tidy up installation done measured less 500 millivolts drop battery motor including speed control wiring fuse switch motor loaded draw 20 amps result plane flies just greatlike should see power loss approximately pro portional SQUARE voltage lossso little loss can go long way toward making Electric unimpressive Moral Pay attention wiring installation detailsit can make difference between No Go Go Sermos Snap Connectors Its littleknown fact Sermos Snap Connectors available colors other familiar red black color options available di rect hobby shops fact have some blue green orange yellow-and-white ones variety useful installation connector pair want sure connect wrong things together easy everything either red black Price same$3 per connector pair Now assembly tip finished solder ing wire metal contacts Snap Connectors wipe silver-plated contacts off well solvent such acetone done remove solder flux may likely have coated mating area result little lots contact resistance no contact small brush cotton swab tissue soaked sol vent will good job Dry part another tissue prior installation plastic housing Th-Th-Th-Thats folks end another column have yet include promised final report motor/ prop/battery testing Caliph Sorryit will have wait will say writing have accumulated 231 flights labors ful fill promise Also Ive made another wingwith aileronsbut like Caliph original wing better Anyway just too other items cover herethis being annual issue after Nats issue Ive two months accumulate column material fertile time year happen summer Now close column go back very beginning read what says Write medirectly Please send comment question SASE please Bob Kopski 25 West End Dr Iansdale PA 19446 RC Giant Scale/de Vries Continued page 51 mouthwatering extreme going hold list close chestor Bill would spend time answering letters rather drafting great construction drawings Although subject column Giant Continued page 152 OPS Mmxi 30 designed strictly model use incorporates extra long stroke turn large props heavy scale planes five intake ports Gilnisil plating give better breathing higher RPM along longer cylinder life both statically dynamically balanced comes roller bearings both ends steel rod DellOrto pump carb operates mixture methanol 50b oil proud engine would like learn its qualities Send free engine test December 1987 149 BRAND gsPjPIe 9m*t4 PO Box 26247NEW ORLEANS LA 70186 1-800-535-2568 RC Giant Scale/de Vries Continued page 149 Scale touches large radiocontrolled models big uns repre sent real prototypethere bunch kits drawings such large models available market Most large non-Scale models classified trainers Some just monoplanes designed easy build easy fly Others however called sport models Ive seen best just recently honest about model Im talking about really knocked sox offi Paul Samaras Ken Otto both Chapter 90 IMAA Den ver CO flew RoadRunners Clubs recent All-Plane Rally Pauls photo accompanies columnto give idea what RoadRun ner looks like theres no way anything less in-person view model being flown master pilot can show well bird flies both Paul Ken just such mas ters best part whole exercise complete fumble-fingers like Yours Truly could fly RoadRunner significantly raising adrenalin level bird kitted Fun Fly PO Box 1686 Lander WY 82520 draw ings available plans-builder bird spans 90 takes anything 60 twocycle up ST 3000 Impressive still roamin through Wyoming lets stop off Riverton check peo pIe CH Electronics Inc PO Box 1732 Riverton WY 82501 manufacture CD capacitive discharge ignition systems model engines ranging up biggest Big Bird engines Particularly effective new four-strokers big gas-burners CH s ignition systems turn recalcitrant hummers super-reliable power plants Ed Carroll super stars Giant model firma ment' use em Drop line call 307/332-7630 price quoteto reliablize engine gentle word warning choosing Scale subject duplication Giant size us let hearts rule minds other words embark Scale building project air plane really turns us instanc es however choose subject prototype produced case severely limited single paint job dec oration scheme no big deal dedicated researcher can work considerable hardship casual yet conscientious Giant Scale builder examples what talking about may found among racing airplanes Thirties unique airframe cor responding flamboyant paint job True Golden Age racers appeared decoration scheme year year docu menting changes degree facility may prove back-breaking task same situation applies across board one-off homebuilts well mil itary prototypes appeal us model sub jects License numbers- serial numbers will one-and-only choose what have termed some orphan aircraft Birds like Piper Skycycle civilian side Lockheed Little Dipper military airframe one-and-onlies require very close tention comes detailing painting true Scale appearance duplicated way reduce impact one-off documentation problems follow cardinal rule building Scale model Document before begin construction painting time comes round itll pleasure rather chore Big better flies better too John de Vries 4610 Moffat Ln Colorado Springs CO 80915 RC Old-Timers Continued page 53 some quotes National Aero nautics Newsletter March 1938 June 1935 Hangar 13 received its charter NAA Junior chapter addition chartered groups Junior Birdmen IGMAA During 1936 club active helping organize model club Rockford IL known Pla Wings club now Boys Club Rockford Also April 1937 club formed under coaching Janesville YMCA club now has member ship over 25 Thus three cities Rock ford Janesville Beloit have organized find particular interest illustration manner modeling club activi ties advanced Thirties Notice volvement YMCA adults communities Also have pointed out past columns majority contests organized Gb Model Products 8773 Russet nrive Cincinnati OH 45239 513-385-7398 GMP EPOXIES High Quality Model Construction Giant Kwik Set 6 mm Epoxy 16 oz 1395 Kwlk Set 6 mm Epoxy10 oz 995 Jr Kwik Set 6 mm Epoxy5 oz 595 Half Fast 10mm EpoxylOoz 895 EASY OFF PULLER er tool removing drive washers Flywheels f products sour dealer r direct Add 51 50 postage READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40$13099 Piper Cherokee-259599 Fokker E111-4010799 Fancy Stick-256599 Cessna 172-208999 engine included 3m SUNSHINE HOBBY 17721 South Western Avenue Gardens California 90247 152 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISKN INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 aa GMP AIRCRAFTINSTRUMENTS 80ln3/16 l/43/8&l/2$149 40in3/4&l$149 Dealer Distributor Inquiries Invited
Edition: Model Aviation - 1987/12
Page Numbers: 50, 51, 149, 152
Radio Control Giant Scale John de Vries Colonel USAF Ret WHEN get right down Giant Scale radio-controlled model builders unique breed constantly accepting challenges Now may appear big deal us stop minute think about First of us build models plans although increasing number Giant Scale kits coming onto market Well check advertisements magazines send off hard-earned money several sheets paper model-airplane-shaped mark ings over Well spend hours local hobby shop choosing materials accessories well go home begin laborious proJerry Van Heeswyks -scale Jodel F-12 homebuilt L spans 9 ft scratch-built own drawings Thirty-two-pounder uses 37-cuin Sachs engine Pou de Ciei Flying Flea quarter-scale R its builder Bob Higgins Broomfield CO Seven-pound craft uses 05 48 Surpass four-stroker power Golden Age homebuilt France built aeronuts nations Paul Samaras Lakewood CO Giant-size sport model RoadRunner L its Supertigre 3000 engine turns barn-burner Col de Vries raves about model column tells order Alysas R Joan L Dale Phony Phokkera Giant Fly Baby Bipe Sacha-Doimer 31 moves Don Harris smoke system traces its path Alycas now touring country 50 Model Aviation Vail Kinsey IMAA Chapter 90 56-in-span replica 1936 Dreamer homebuilt Fourteen-pound bird powered ST 3000 Covering both MonoKote SolarTex Ed Carrolls latest design Punkin Waco look-alike isnt scale flies like fuily-aerobatic homesick angell cess making patterns cutting out parts sembling model thats quarter size real larger Second less forced becom ing aeronautical engineers No matter com plete drawings working theres always degree horseback engineering re quired us build Giants example Installing radio Giant isnt two-hour job have consider such things control actua tor runs multiple servo locations extending servo leads feet adding redundant battery supplies shielding receivers engine ignition noise None engineering tasks face compatriots build small Third challenged sheer size models build Just getting model fly ing field part Sticking Giant mod ern automobile challenge major proportions meet us opt mod els disassemble components thatll fit Volks Toyota adds construc tion challenge delays first flight day halt screw otherwise fit big pieces bigger RC model Good Friend Dick Smith developed solu tion problem science took Stearman model out fly fitted Ford just way Wings fuselage tail feathers field box its place Because wife Betty always accompanies Dick field arrangement leave seat front car Like others us Dick decided discretion better part valor bought himself Chrysler Corp minivanthus assuring Betty place car having converse Dick over Sachs-Dolmer other gas burner Fourth challenge flying Giants time effort cold hard cash represented first flight miniature radio-controlled aircraft may biggest chal lenge Getting up down piece major triumph first flight Out way engine running like should radio wiggling right things right times trims set challenges disap pear aerodynamics Giant model aircraft take over pure pleasure replaces chal lenges Alls can say Try Youll like it' Turning prosaic less philosophic considerations Giant scene want give peek futurejust case youre looking new model subject Atlantas Bill Effinger WE Technical Servi ces 526 Lovell Terrace Atlanta GA 30328 has some delectable drawings drafting board Hes recently completed dandy set Buster plans working /3-scale J-3 Cub B I-G Quadra 35 40 cant wait get set drawings Curtiss P 1 first Hawks Although Bills list potential subjects Continued page 149 Cl-I tiectronics Breokerless CD Ignition System can installed engine 15 large chainsaw type new 90 15 two four stroke engines perfect converting CH Ignition system ore new kits plans airplanes just becoming available perfect size engine Four stroke engines beautiful ign Detonation death four stroke enginewhen control engine timing can stop detonation makes engine run much cooler 8 develops power plus no kickback & very low idle CH system used engine experts Maynard Hill George Aidridge Doran Hiatt Cliff Bennett Otto Bernhart Maynard Hill used CH system last two world records Available two four stroke engines single twin cylinder Throttle Coupled Spark Advance kits available popular engines Custom engine set-up available Call write price quote Now IETCl electronic timing control information brochure price list send *1 00 CH Electronics Inc Box 1732 Riverton WY 82501 Phone 307-857-6897 December 1987 51 DISTRIBUTED BY 475AVAILABLE AT AMERICAS FINEST HOBBY SHOPS END W8Y5ZND 75s5 tan Gaboel Road cadeo cA 93422 5-1717 Capacitive Discharge Ignition column March 1987 MA Finally increasing trend toward highly detailed kit instruction booklets aid first-time model builders yes some readers have never glued two pieces balsa togetherthey tell Amptique kit could made better some written instructions sketches photos fret notfor outstanding kit tally worthy consideration beginning builder can always check some local experienced modelers questions may have building lieve designed-for-Electric plane will come extremely popular Which gives idea Maybe can talk KRC adding Amptique event next year s Electric Fly Well see Wire connectors above-referenced Keith Shawa Research Physicist Univer sity Michiganran some comparative tests several popular connectors various kinds wire particular wanted compare connec tor contact resistance wire resistance Keith measured voltage drops losses connectors under heavy current conditions associated operation models used test current level 20 amps measured voltages appearing across connector elements determined contact resistance version Ohms law thus Resistance age divided Current R connectors tested contact resistan ces CONTACT RESISTANCE milliohms Sermos Adams Jomar Deans 4-pin Tamiya Molex Astro gold 027005 035005 045005 09001 1401 4005 Using similar technique Keith compared resistance variety wire brands thus BRAND Jomar Belden Astro Jomar Lamp Cord GAUGE RESISTANCE milliohms/ft 1218 14277 13284 16444 16594 What does mean Its easy Connector contact resistance wire resistance causes volt age loss motor current flows means some battery voltage never gets motorwhich after its supposed go some losses Electric system cant anything aboutlike losses Ni-Cd cells fuses necessary make work does pay reduce can control much possible Read relevant real-life experience Just show can really add up something significant just helped friend fellow club member troubleshoot very unimpressive co balt geared 05-powered Viking seven 12 Ah cells SC4 speed control particularly heavy should ordinarily fly great hardly flew made some quick measurements field total volt age loss nearly two volts between battery terminals motor terminals checking further clear instal lation unusually large amount wire cause rather long separations motor battery switch speed control etc Furthermore wire used varied gauges consisted pieces varied connectors join ing together Guaranteed trouble offered take plane home tidy up installation done measured less 500 millivolts drop battery motor including speed control wiring fuse switch motor loaded draw 20 amps result plane flies just greatlike should see power loss approximately pro portional SQUARE voltage lossso little loss can go long way toward making Electric unimpressive Moral Pay attention wiring installation detailsit can make difference between No Go Go Sermos Snap Connectors Its littleknown fact Sermos Snap Connectors available colors other familiar red black color options available di rect hobby shops fact have some blue green orange yellow-and-white ones variety useful installation connector pair want sure connect wrong things together easy everything either red black Price same$3 per connector pair Now assembly tip finished solder ing wire metal contacts Snap Connectors wipe silver-plated contacts off well solvent such acetone done remove solder flux may likely have coated mating area result little lots contact resistance no contact small brush cotton swab tissue soaked sol vent will good job Dry part another tissue prior installation plastic housing Th-Th-Th-Thats folks end another column have yet include promised final report motor/ prop/battery testing Caliph Sorryit will have wait will say writing have accumulated 231 flights labors ful fill promise Also Ive made another wingwith aileronsbut like Caliph original wing better Anyway just too other items cover herethis being annual issue after Nats issue Ive two months accumulate column material fertile time year happen summer Now close column go back very beginning read what says Write medirectly Please send comment question SASE please Bob Kopski 25 West End Dr Iansdale PA 19446 RC Giant Scale/de Vries Continued page 51 mouthwatering extreme going hold list close chestor Bill would spend time answering letters rather drafting great construction drawings Although subject column Giant Continued page 152 OPS Mmxi 30 designed strictly model use incorporates extra long stroke turn large props heavy scale planes five intake ports Gilnisil plating give better breathing higher RPM along longer cylinder life both statically dynamically balanced comes roller bearings both ends steel rod DellOrto pump carb operates mixture methanol 50b oil proud engine would like learn its qualities Send free engine test December 1987 149 BRAND gsPjPIe 9m*t4 PO Box 26247NEW ORLEANS LA 70186 1-800-535-2568 RC Giant Scale/de Vries Continued page 149 Scale touches large radiocontrolled models big uns repre sent real prototypethere bunch kits drawings such large models available market Most large non-Scale models classified trainers Some just monoplanes designed easy build easy fly Others however called sport models Ive seen best just recently honest about model Im talking about really knocked sox offi Paul Samaras Ken Otto both Chapter 90 IMAA Den ver CO flew RoadRunners Clubs recent All-Plane Rally Pauls photo accompanies columnto give idea what RoadRun ner looks like theres no way anything less in-person view model being flown master pilot can show well bird flies both Paul Ken just such mas ters best part whole exercise complete fumble-fingers like Yours Truly could fly RoadRunner significantly raising adrenalin level bird kitted Fun Fly PO Box 1686 Lander WY 82520 draw ings available plans-builder bird spans 90 takes anything 60 twocycle up ST 3000 Impressive still roamin through Wyoming lets stop off Riverton check peo pIe CH Electronics Inc PO Box 1732 Riverton WY 82501 manufacture CD capacitive discharge ignition systems model engines ranging up biggest Big Bird engines Particularly effective new four-strokers big gas-burners CH s ignition systems turn recalcitrant hummers super-reliable power plants Ed Carroll super stars Giant model firma ment' use em Drop line call 307/332-7630 price quoteto reliablize engine gentle word warning choosing Scale subject duplication Giant size us let hearts rule minds other words embark Scale building project air plane really turns us instanc es however choose subject prototype produced case severely limited single paint job dec oration scheme no big deal dedicated researcher can work considerable hardship casual yet conscientious Giant Scale builder examples what talking about may found among racing airplanes Thirties unique airframe cor responding flamboyant paint job True Golden Age racers appeared decoration scheme year year docu menting changes degree facility may prove back-breaking task same situation applies across board one-off homebuilts well mil itary prototypes appeal us model sub jects License numbers- serial numbers will one-and-only choose what have termed some orphan aircraft Birds like Piper Skycycle civilian side Lockheed Little Dipper military airframe one-and-onlies require very close tention comes detailing painting true Scale appearance duplicated way reduce impact one-off documentation problems follow cardinal rule building Scale model Document before begin construction painting time comes round itll pleasure rather chore Big better flies better too John de Vries 4610 Moffat Ln Colorado Springs CO 80915 RC Old-Timers Continued page 53 some quotes National Aero nautics Newsletter March 1938 June 1935 Hangar 13 received its charter NAA Junior chapter addition chartered groups Junior Birdmen IGMAA During 1936 club active helping organize model club Rockford IL known Pla Wings club now Boys Club Rockford Also April 1937 club formed under coaching Janesville YMCA club now has member ship over 25 Thus three cities Rock ford Janesville Beloit have organized find particular interest illustration manner modeling club activi ties advanced Thirties Notice volvement YMCA adults communities Also have pointed out past columns majority contests organized Gb Model Products 8773 Russet nrive Cincinnati OH 45239 513-385-7398 GMP EPOXIES High Quality Model Construction Giant Kwik Set 6 mm Epoxy 16 oz 1395 Kwlk Set 6 mm Epoxy10 oz 995 Jr Kwik Set 6 mm Epoxy5 oz 595 Half Fast 10mm EpoxylOoz 895 EASY OFF PULLER er tool removing drive washers Flywheels f products sour dealer r direct Add 51 50 postage READY TO FLY Call 1-800-45-TO FLY *LOW PRICES *EASY TO ASSEMBLE *NO BUILDING *NO PAINTING Piper Cherokee-40$13099 Piper Cherokee-259599 Fokker E111-4010799 Fancy Stick-256599 Cessna 172-208999 engine included 3m SUNSHINE HOBBY 17721 South Western Avenue Gardens California 90247 152 Model Aviation SUNBIRD SENSATION WITH STYLE Sunbird combines eye opening performance truly distinctive styling terrific flying design Whether choose 40 size Sunbird 10 Sunbird Jr youll find Sunbird perfect sport plane fl PRECISKN INC 714 592-5144 510 E Arrow Highway San Dimas CA 91773 aa GMP AIRCRAFTINSTRUMENTS 80ln3/16 l/43/8&l/2$149 40in3/4&l$149 Dealer Distributor Inquiries Invited