Radio Control Giant Scale John de Vries Colonel USAF Ret YOURS TRULY has just returned annual orgy Toledo number 33 Weak Signals club seventh visit northwestern Ohio city Toledo87 livedupto its well-deserved reputation trade show Wall-to-wall people marveled wonders model aviation almost everybody anybody model hobby world And60% 70% of Scale models competition Giant variety able obtain exhibitors pass show got spend some time Toledo Sports Arena setup day Although things tad confused excellent opportunity examine goodies up close Would believe all-aluminum-tubing Cub all-aluminum wings tail feathers Bolt bird together also use special cement Thats what popped cork Toledo year Although German-made Polks-merchandised aluminum Cub kit bit pricey its another situations can swap bucks labor come up beautiful biggie almost-scale construc tion couple other items Toledo tickled fancy amongst bunch almost-irresistible goodies new has around bit former high-tech field case displayed prototype form Matrix Enterprises Inc showed prototype all-ABS molded plastic field box has reversible plane supports alumi num legsall empty weight mere 10 lb structural bits pieces polycarbonate very strong plasticits used 35mm camera bodies versatile box should last next century appears rugged enough hold Giant models side quarterscale Spruce Goose Although its around day two Realistic Models Potomac MD bolts together neat shock-absorbing landing gear unit can adapted Giant Scale birds weigh up 40 lb use gear Giant Scale Stinson would easy fair sturdy aluminum landing gear legs prac tically Scale tail-dragger Whats Realistic people offer custom-made units really neat part gear leg individually sprung true prototype fashion Jim Messer wasnt guy did left Toledo crick neck looking up seems unvoiced conspir acy Northwest Ohio Lets hang Giant Scale models raftersand everybody did Jims contribution sore neck prototype new -scale Kitten ultralight kit two-tone blue white model Super Cub-like wheel pants Quadra hummer should fly like well-satisfied eagle does control like well-mannered trainer 52 Model Aviation Jim Messer witn giant irnen tne STARS flying field Olean NY makes kit Fred Fazzlo shows almost-ready-to-crank Big Morrisey Bravo IMAA Chapter 90s recent Winter Project Review Engines Quadra 50 planked entire model Joe Dolan big Aeronca C-3 atChapter9os Review Model spans9 ft weighs 11 lb built Balsa USA kit Note other models background Jim sez does photos model can tell isnt much way curvy stuff Kitten what cowl wheel pants Jim provides ready-to-use form Jim bends landing gears kits hand hot news category lot behind-the-scenes activity Toledo impacts directly us addicted Giant Scale other large models IMAAs board directors voted acquire liability insurance membership Initially itll increase LMAA dues $20 year will provide primary coverage Details insurance pro gram will course contained High Flight IMAAs quarterly newsletter/magazine IMAA board also generated some specific recommendations concerning model weights flying large models consideration AMA Executive Council next meeting can look some rather sweep ing changes big-model field sugges tions Special Interest Group IMAA adopted included AMA rule book Although Im certain itll appear greater detail Bob Dollys Wischer column well elsewhere magazine want add two-cents-worth whoopees recent FAI rules thrash Paris resulted some mighty good news Giant Scalers Bob Wischers report ofFAl Scale activity recent Paris FAIICIAM meeting reported last month Competition Newsletter section magazine RMcM Despite essentially noncompetitive nature Continued page 152 gf CESSNA 150 AEROBAT COSMIC WIND Cox Hobbies new E-Z Flyers perfect control line planes first time flyer Equipped famous Cox 049 engine newly designed snap starter get airborne flying fast After winning wings step up racy Cosmic Wind same easy starting Cox 049 engine insures lots exciting flight time See complete line Cox powered models accessories Hobby retailer today Enclose $100 SASE mini-catalog COX HOBBIES 1525 E Warner Ave Santa Ana CA 92705 August 1987 53 Ken Gerlits cowl fore Little Toot conducting Chapter go Review semi nar use liquid masking film producing sporty paint jobs MASTER AIRSCRIW performance value Master Airscrew propellers unbeatable Leader small Airfoil y E Series Electrics 12x8 15x12 SIZES Series 5V2x4 thru 6x4 GIF Series 7x4 thru lix 7 K Series 4-Strokes 12x6 thai 16x8 New Antique Series 12x6 13x6 14x7 16x7 WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 Carry Largest Only Stock Kraft Parts World .. Kraft alive working KRAFT FLYMIWEST WHAT FIX Authorized Warranty Service hREOUENCY CONVERSION $1000 Diecoont Regaler RopeIIAFT Mont Makes Models Concerted Toning Done Spectram Analyzer Also Service 7j AU E/C Futaba Full Time Servicenter Ihe Midwest 117 East Main St Northville Michigan 48167 Upper Lecel]Phone 1-313-348-0085 Meeterrtl Welcome AnotherChaptergo member Tommy Meyer retracting mechanism 1/4 scale Loening OLg amphibian 6-in spoked wheels custom-made An onboard electric starter system will drive retracting system EiDer LiWNKUBE WUUZ WeSiyfOWOijat agiaiNew Prop Adapter far Byron 4 or3 bledqdiirop ANEgI. Complete Fits Sache engine wltn7lS bolt pattern 5 Neffibg Extra uuy 31 -*325 37- W200fformulypoatg S49 34-flU42-*420 Glees body Opifee aeA5fagleea wheal pants TlwotJecoupled cowl apark advancefoam wing aN balaa Included A-Uba2oa-SNP27-tlbe4ozPIHP42IIbaSoi7HP Tfar Sinai Carburetor Unkage CDI Ignition ICH ElectronloeL 45 Volt Ignition Pad Safety Switch S Bolt Hub Realator Spark Plugs 1 Watrantyon Faulty Parts end WorknianablpLaw Kit ENew 2glece wing coaseralon Laaar bulk bqnea Laeer Hardwup 0 extra TG MFGU 857 High Mountain Rd North Halodon NJ 07508 427-3845 like 100-mAh cell OK lets Using same 1 5-minute timer allows us think 100-mAb capacity 400 milliamp-quarter-hour size Thus sets charge current 04 amps 15 minutes tank full Another aid doing think 100 milliamps hour milliamps milliamps hour As final example lets check out popular 800-mAh 08 Ah size becomes 800 mA hour mps mps 15 minutes Presto practice Ive written times personally rarely try fill tank because Im basically sport flier want minimize accidental overfill possible cell dam age So generalization normally charge about 90% full give take little always beginning empty cell/pack example use about 42 44 amps recharging 12s since 12 amps hour 24 amps 48 amps 90% 432 amps Also normally use three-amp charge current 15 minutes 800s hope helps some Geared cobalts Astro very popular because speed reduction corresponding torque increase allow larger props used model types fly much better way gears require some care feeding too heres tale woe illustrate anxious try geared cobalt new Caliph failed pay attention what doing haste forgot apply some grease per instructions gears after installed new set new cobalt purchased gears motor separately different times Well gears both metal lasted about three four flights started sounding like concrete mixer lack lube ruined gears meso caution learn keep em both clean carefully greased use small amount white lithium auto grease new Caliph see last months column continues please very much Ive some opportunity try different motors So far have flown Caliph Keller 25/12 pictured last month Astro geared 05 15 cobalts Kyosho geared 360PT Tower Hobbies has received very limited flight timemuch bad weatherand its premature report com parative results now will however tell two motors used rather unconven tionally Theres enough column space month go detail really want accumulate flight time first now let just tease First may recall May column indicated motors can very often used varied ways shown instructions magazine material matter Well thats just exactly sort thing Ive doing Caliph point Ill just say right prop selections Ive flying Caliph geared cobalt 05 12 cells economy geared Kyosho 360PT nine cells want accumulate experience combinations initial results rather exciting coming up meantime Ill just get some Caliph/installation photos may prove help ful planning new installation its some other model photo details small addition motor mounting technique described last month So far motor clamps made using Golden Rod inners yellow part Sullivan blue outer sheath/yellow inner control-rod set have worked very well technique has allowed easy interchange motors mentioned above has trouble-free except time prop hit ground landing happened 2 56 screw head washer clamp pulled through -in lite-ply motor mount floor What needed larger washer solution shown photos cut two strips thin -in-wide hobby store brass stock drilled 3A2-in holes line up versatile variety existing Caliph motor floor used strips giant washers So far have no problems Another photo shows modified steerable tail wheel installation dont like idea having tail wheel mounted rudder because thing use tape hinges Electrics see About Electrics part nine May 1984 issue MA case rudders shouldnt have take abuse installation tail wheel has its own internal fuselage-high brass-tubing bearing separate linkage rudder pushrod benefit addition strength attained individual adjustability throw both rudder steeringand favorite tape hinges re main unburdened Odds ends As reminder readers since continue askId like again encourage buy copy Mitch Polings book t Build Fly Electric-Powered Modeis book experienced Electric writer know published Kaim back very worth $995 selling price As Ive Indicated previous columns readers have reacted very intensely posi tively April offering motor specifica tions/standards idea Some readers apparently have thought about detail have come up penetrating questions like does motor voltage current rpm specifications tell us prop use Well certainly knew remained question wrote column intent follow up information covering matter So stay tuned Still upcoming sometime inexpen sively modify nifty Astro DC DC Super Charger make constant-current charger really works makes charging vastly controlled opportune Finally may wonder just important factor excess weight model airplane can let suggest simple experiment Take favorite familiar sport aerobatic Electricone used flying know well add weight Put about 10% 15 % weight CG fly things would ordinarily expect plane doand see what happens Betcha just aint same ol plane closing thought Try think geared motors Rather try think geared props effect gears belts adjust usable size prop motor motor motorit doesnt change later too Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Happy Silent Summer Flying Fun Everyone RC Giant Scale/de Vries Continued page 53 Big Bird get-togethers rallies fun-flies several among number take great pleasure exercising Giant Scale portion rule book seems theres now provisional International FAI class big uns can competition highest level Dolly didnt have enough time tell FM choseto adopt Australian rules Big Bird competition guess start Continued page 154 152 Model Aviation somewhere Twill some time however before therell full-blown Scale Big-Bird Internats really shake out new FAI rules Italy 88 therell probably Giant event Canada 1990 biggest best news Paris removal engine displacement restrictions increase allowable model weight 15-lbplus should go long way toward making international Scale class models FAI Scale/AMA Precision Scale bunch attractive potential competitors wouldnt take too much effort create true scale Big Bird under revised rules just received report swell new idea Leo Ford editor Hangar Flyer newsletter Colorado Dawn Patrol IMAA Chapter 90 sent 31 photographs Chuck Nelson Tommy Meyer processed Tom Ryan pictures taken Chapter 90s Winter Project Reviewsomething entirely new different exciting Sunday March 15 everybody Chapter brought his/her winters project display Waynes Automotive beautiful downtown Denver talking about thing set drawings models ready crank take off Twas ultimate show-and-tell super-neat way reinspire troops midst winter building season also opportunity present building seminars inspired idea other clubs/chapters would well copy next year weather agin us Ryan wIll soon have wheels sincere thanks Bob Lonseth Sylvania OH Harry Apoian Rolling Hills CA Bob pointed out Caterpillar tractors have large 0-rings part Duo-Cone seals might suitable tires homemade wheels Harry noted 6-in wheels scale configuration commercially available Germany Thanks Bob Harry rest wrote potential solutions Ryan wheel problem Keep fingers out prop fire extinguisher close hand batteries charged Giant Scale bird safe flying condi tionand well back next month new idea three John de Vries 4610 MoffatLn Colorado Springs CO 80915 RC Pylon Racing/Hager Continued page 54 3 Submerge fronthousing swish crank shaft listening/feeling rough spots may indicate presence metal particles Re peat process until crankshaft spins freely 4 Apply Marvel Oil liberally bed rings crankshaft 5 same thing other parts 6 Reassemble enginehead-bolt torque should 7 point onward engine must kept clean wrap cotton 8 Break-in procedure Mount engine Q500 aircraft preferably using metal engine mount Affix 9 x 6 Master Airscrew prop en carburetor idle screw two turns present position Open main needle valve five turns ground no muffler possible Run engine very rich minute let cool repeat process three times engine running cool can hold cylinder head its running Break-in procedure air Install muffler sure engine set very rich still flyable Low throttle should kill en gine due overly rich idie setting Fly enginethree four flights shallow climbs dives mostly flat gentle turns After four five flights begin doing large reverse Cuban Eights climb 200 roll inverted large de loop 200 climb opposite direction etc Continue process gradually leaning out engine adding stress flight maneuvers After 12 15 flights four five minutes per flight engine should race-ready Keys success 1 Cleanliness 2 Patience 3 little luck Hey gang really works alistofQ500 kits sources Thunder Q-11 Pauls Flying Stuff PO Box 121 Escondido CA 92025 phone 619 743-5458 China Clipper Model Tech available hobby stores T Tailed California Speed Pros 32221 Alipaz No 15 San Juan Capistrano CA 92675 phone 714 661-7430 Spickler Spickler Models available hobby stores Texas Outlaw Dickie Ritch 4101 Lar Houston TX 77025 phone 713 661-5458 Scat Cat Flite Line Models available hobby stores Yellow Jacket Mills Airplane Models 2868 Hambleton Rica MD 21140 phone 301 956-3308 See races Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 55 practice autorotation both nice ma neuver perform also handy proficient should engine quit during flight some radios Throttle Hold switch activated collective controlled second set pitch curves described earlier resulting allowing greater range collective required descent landing disturbing feature newer Helicopter transmitters particular operating pulse-code modulation PCM seem operate significantly shorter period time singie charge past experience has prepared us accept Airborne battery requirements have also increased power directional-control gyro well fifth servo used control collective pitch main rotor can put quite strain batteries excellent cure provided SR Batteries manufactures high-capacity lightweight batteries replacements transmitter airborne battery packs packs will provide added flying time charge will make custom packs feel something extra-special needed no matter what batteries use its always good idea cycle periodically check capacities During typical day flying after having made several flights Ill also use expanded-scale voltmeter ESV test batteries under load make sure its still safe fly Helicopter radios may seem little complicated first little practice functions well others particular radio will become very easy logical use now features have become standard us chopper pilots wonder what manufacturers dreaming up next generation radios Products following manufacturers described article Airtronics Inc 11 Continued page 156 154 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 5060 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 responding advertisers mention read about ModelAviation
Edition: Model Aviation - 1987/08
Page Numbers: 52, 53, 152, 154
Radio Control Giant Scale John de Vries Colonel USAF Ret YOURS TRULY has just returned annual orgy Toledo number 33 Weak Signals club seventh visit northwestern Ohio city Toledo87 livedupto its well-deserved reputation trade show Wall-to-wall people marveled wonders model aviation almost everybody anybody model hobby world And60% 70% of Scale models competition Giant variety able obtain exhibitors pass show got spend some time Toledo Sports Arena setup day Although things tad confused excellent opportunity examine goodies up close Would believe all-aluminum-tubing Cub all-aluminum wings tail feathers Bolt bird together also use special cement Thats what popped cork Toledo year Although German-made Polks-merchandised aluminum Cub kit bit pricey its another situations can swap bucks labor come up beautiful biggie almost-scale construc tion couple other items Toledo tickled fancy amongst bunch almost-irresistible goodies new has around bit former high-tech field case displayed prototype form Matrix Enterprises Inc showed prototype all-ABS molded plastic field box has reversible plane supports alumi num legsall empty weight mere 10 lb structural bits pieces polycarbonate very strong plasticits used 35mm camera bodies versatile box should last next century appears rugged enough hold Giant models side quarterscale Spruce Goose Although its around day two Realistic Models Potomac MD bolts together neat shock-absorbing landing gear unit can adapted Giant Scale birds weigh up 40 lb use gear Giant Scale Stinson would easy fair sturdy aluminum landing gear legs prac tically Scale tail-dragger Whats Realistic people offer custom-made units really neat part gear leg individually sprung true prototype fashion Jim Messer wasnt guy did left Toledo crick neck looking up seems unvoiced conspir acy Northwest Ohio Lets hang Giant Scale models raftersand everybody did Jims contribution sore neck prototype new -scale Kitten ultralight kit two-tone blue white model Super Cub-like wheel pants Quadra hummer should fly like well-satisfied eagle does control like well-mannered trainer 52 Model Aviation Jim Messer witn giant irnen tne STARS flying field Olean NY makes kit Fred Fazzlo shows almost-ready-to-crank Big Morrisey Bravo IMAA Chapter 90s recent Winter Project Review Engines Quadra 50 planked entire model Joe Dolan big Aeronca C-3 atChapter9os Review Model spans9 ft weighs 11 lb built Balsa USA kit Note other models background Jim sez does photos model can tell isnt much way curvy stuff Kitten what cowl wheel pants Jim provides ready-to-use form Jim bends landing gears kits hand hot news category lot behind-the-scenes activity Toledo impacts directly us addicted Giant Scale other large models IMAAs board directors voted acquire liability insurance membership Initially itll increase LMAA dues $20 year will provide primary coverage Details insurance pro gram will course contained High Flight IMAAs quarterly newsletter/magazine IMAA board also generated some specific recommendations concerning model weights flying large models consideration AMA Executive Council next meeting can look some rather sweep ing changes big-model field sugges tions Special Interest Group IMAA adopted included AMA rule book Although Im certain itll appear greater detail Bob Dollys Wischer column well elsewhere magazine want add two-cents-worth whoopees recent FAI rules thrash Paris resulted some mighty good news Giant Scalers Bob Wischers report ofFAl Scale activity recent Paris FAIICIAM meeting reported last month Competition Newsletter section magazine RMcM Despite essentially noncompetitive nature Continued page 152 gf CESSNA 150 AEROBAT COSMIC WIND Cox Hobbies new E-Z Flyers perfect control line planes first time flyer Equipped famous Cox 049 engine newly designed snap starter get airborne flying fast After winning wings step up racy Cosmic Wind same easy starting Cox 049 engine insures lots exciting flight time See complete line Cox powered models accessories Hobby retailer today Enclose $100 SASE mini-catalog COX HOBBIES 1525 E Warner Ave Santa Ana CA 92705 August 1987 53 Ken Gerlits cowl fore Little Toot conducting Chapter go Review semi nar use liquid masking film producing sporty paint jobs MASTER AIRSCRIW performance value Master Airscrew propellers unbeatable Leader small Airfoil y E Series Electrics 12x8 15x12 SIZES Series 5V2x4 thru 6x4 GIF Series 7x4 thru lix 7 K Series 4-Strokes 12x6 thai 16x8 New Antique Series 12x6 13x6 14x7 16x7 WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 Carry Largest Only Stock Kraft Parts World .. Kraft alive working KRAFT FLYMIWEST WHAT FIX Authorized Warranty Service hREOUENCY CONVERSION $1000 Diecoont Regaler RopeIIAFT Mont Makes Models Concerted Toning Done Spectram Analyzer Also Service 7j AU E/C Futaba Full Time Servicenter Ihe Midwest 117 East Main St Northville Michigan 48167 Upper Lecel]Phone 1-313-348-0085 Meeterrtl Welcome AnotherChaptergo member Tommy Meyer retracting mechanism 1/4 scale Loening OLg amphibian 6-in spoked wheels custom-made An onboard electric starter system will drive retracting system EiDer LiWNKUBE WUUZ WeSiyfOWOijat agiaiNew Prop Adapter far Byron 4 or3 bledqdiirop ANEgI. Complete Fits Sache engine wltn7lS bolt pattern 5 Neffibg Extra uuy 31 -*325 37- W200fformulypoatg S49 34-flU42-*420 Glees body Opifee aeA5fagleea wheal pants TlwotJecoupled cowl apark advancefoam wing aN balaa Included A-Uba2oa-SNP27-tlbe4ozPIHP42IIbaSoi7HP Tfar Sinai Carburetor Unkage CDI Ignition ICH ElectronloeL 45 Volt Ignition Pad Safety Switch S Bolt Hub Realator Spark Plugs 1 Watrantyon Faulty Parts end WorknianablpLaw Kit ENew 2glece wing coaseralon Laaar bulk bqnea Laeer Hardwup 0 extra TG MFGU 857 High Mountain Rd North Halodon NJ 07508 427-3845 like 100-mAh cell OK lets Using same 1 5-minute timer allows us think 100-mAb capacity 400 milliamp-quarter-hour size Thus sets charge current 04 amps 15 minutes tank full Another aid doing think 100 milliamps hour milliamps milliamps hour As final example lets check out popular 800-mAh 08 Ah size becomes 800 mA hour mps mps 15 minutes Presto practice Ive written times personally rarely try fill tank because Im basically sport flier want minimize accidental overfill possible cell dam age So generalization normally charge about 90% full give take little always beginning empty cell/pack example use about 42 44 amps recharging 12s since 12 amps hour 24 amps 48 amps 90% 432 amps Also normally use three-amp charge current 15 minutes 800s hope helps some Geared cobalts Astro very popular because speed reduction corresponding torque increase allow larger props used model types fly much better way gears require some care feeding too heres tale woe illustrate anxious try geared cobalt new Caliph failed pay attention what doing haste forgot apply some grease per instructions gears after installed new set new cobalt purchased gears motor separately different times Well gears both metal lasted about three four flights started sounding like concrete mixer lack lube ruined gears meso caution learn keep em both clean carefully greased use small amount white lithium auto grease new Caliph see last months column continues please very much Ive some opportunity try different motors So far have flown Caliph Keller 25/12 pictured last month Astro geared 05 15 cobalts Kyosho geared 360PT Tower Hobbies has received very limited flight timemuch bad weatherand its premature report com parative results now will however tell two motors used rather unconven tionally Theres enough column space month go detail really want accumulate flight time first now let just tease First may recall May column indicated motors can very often used varied ways shown instructions magazine material matter Well thats just exactly sort thing Ive doing Caliph point Ill just say right prop selections Ive flying Caliph geared cobalt 05 12 cells economy geared Kyosho 360PT nine cells want accumulate experience combinations initial results rather exciting coming up meantime Ill just get some Caliph/installation photos may prove help ful planning new installation its some other model photo details small addition motor mounting technique described last month So far motor clamps made using Golden Rod inners yellow part Sullivan blue outer sheath/yellow inner control-rod set have worked very well technique has allowed easy interchange motors mentioned above has trouble-free except time prop hit ground landing happened 2 56 screw head washer clamp pulled through -in lite-ply motor mount floor What needed larger washer solution shown photos cut two strips thin -in-wide hobby store brass stock drilled 3A2-in holes line up versatile variety existing Caliph motor floor used strips giant washers So far have no problems Another photo shows modified steerable tail wheel installation dont like idea having tail wheel mounted rudder because thing use tape hinges Electrics see About Electrics part nine May 1984 issue MA case rudders shouldnt have take abuse installation tail wheel has its own internal fuselage-high brass-tubing bearing separate linkage rudder pushrod benefit addition strength attained individual adjustability throw both rudder steeringand favorite tape hinges re main unburdened Odds ends As reminder readers since continue askId like again encourage buy copy Mitch Polings book t Build Fly Electric-Powered Modeis book experienced Electric writer know published Kaim back very worth $995 selling price As Ive Indicated previous columns readers have reacted very intensely posi tively April offering motor specifica tions/standards idea Some readers apparently have thought about detail have come up penetrating questions like does motor voltage current rpm specifications tell us prop use Well certainly knew remained question wrote column intent follow up information covering matter So stay tuned Still upcoming sometime inexpen sively modify nifty Astro DC DC Super Charger make constant-current charger really works makes charging vastly controlled opportune Finally may wonder just important factor excess weight model airplane can let suggest simple experiment Take favorite familiar sport aerobatic Electricone used flying know well add weight Put about 10% 15 % weight CG fly things would ordinarily expect plane doand see what happens Betcha just aint same ol plane closing thought Try think geared motors Rather try think geared props effect gears belts adjust usable size prop motor motor motorit doesnt change later too Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Happy Silent Summer Flying Fun Everyone RC Giant Scale/de Vries Continued page 53 Big Bird get-togethers rallies fun-flies several among number take great pleasure exercising Giant Scale portion rule book seems theres now provisional International FAI class big uns can competition highest level Dolly didnt have enough time tell FM choseto adopt Australian rules Big Bird competition guess start Continued page 154 152 Model Aviation somewhere Twill some time however before therell full-blown Scale Big-Bird Internats really shake out new FAI rules Italy 88 therell probably Giant event Canada 1990 biggest best news Paris removal engine displacement restrictions increase allowable model weight 15-lbplus should go long way toward making international Scale class models FAI Scale/AMA Precision Scale bunch attractive potential competitors wouldnt take too much effort create true scale Big Bird under revised rules just received report swell new idea Leo Ford editor Hangar Flyer newsletter Colorado Dawn Patrol IMAA Chapter 90 sent 31 photographs Chuck Nelson Tommy Meyer processed Tom Ryan pictures taken Chapter 90s Winter Project Reviewsomething entirely new different exciting Sunday March 15 everybody Chapter brought his/her winters project display Waynes Automotive beautiful downtown Denver talking about thing set drawings models ready crank take off Twas ultimate show-and-tell super-neat way reinspire troops midst winter building season also opportunity present building seminars inspired idea other clubs/chapters would well copy next year weather agin us Ryan wIll soon have wheels sincere thanks Bob Lonseth Sylvania OH Harry Apoian Rolling Hills CA Bob pointed out Caterpillar tractors have large 0-rings part Duo-Cone seals might suitable tires homemade wheels Harry noted 6-in wheels scale configuration commercially available Germany Thanks Bob Harry rest wrote potential solutions Ryan wheel problem Keep fingers out prop fire extinguisher close hand batteries charged Giant Scale bird safe flying condi tionand well back next month new idea three John de Vries 4610 MoffatLn Colorado Springs CO 80915 RC Pylon Racing/Hager Continued page 54 3 Submerge fronthousing swish crank shaft listening/feeling rough spots may indicate presence metal particles Re peat process until crankshaft spins freely 4 Apply Marvel Oil liberally bed rings crankshaft 5 same thing other parts 6 Reassemble enginehead-bolt torque should 7 point onward engine must kept clean wrap cotton 8 Break-in procedure Mount engine Q500 aircraft preferably using metal engine mount Affix 9 x 6 Master Airscrew prop en carburetor idle screw two turns present position Open main needle valve five turns ground no muffler possible Run engine very rich minute let cool repeat process three times engine running cool can hold cylinder head its running Break-in procedure air Install muffler sure engine set very rich still flyable Low throttle should kill en gine due overly rich idie setting Fly enginethree four flights shallow climbs dives mostly flat gentle turns After four five flights begin doing large reverse Cuban Eights climb 200 roll inverted large de loop 200 climb opposite direction etc Continue process gradually leaning out engine adding stress flight maneuvers After 12 15 flights four five minutes per flight engine should race-ready Keys success 1 Cleanliness 2 Patience 3 little luck Hey gang really works alistofQ500 kits sources Thunder Q-11 Pauls Flying Stuff PO Box 121 Escondido CA 92025 phone 619 743-5458 China Clipper Model Tech available hobby stores T Tailed California Speed Pros 32221 Alipaz No 15 San Juan Capistrano CA 92675 phone 714 661-7430 Spickler Spickler Models available hobby stores Texas Outlaw Dickie Ritch 4101 Lar Houston TX 77025 phone 713 661-5458 Scat Cat Flite Line Models available hobby stores Yellow Jacket Mills Airplane Models 2868 Hambleton Rica MD 21140 phone 301 956-3308 See races Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 55 practice autorotation both nice ma neuver perform also handy proficient should engine quit during flight some radios Throttle Hold switch activated collective controlled second set pitch curves described earlier resulting allowing greater range collective required descent landing disturbing feature newer Helicopter transmitters particular operating pulse-code modulation PCM seem operate significantly shorter period time singie charge past experience has prepared us accept Airborne battery requirements have also increased power directional-control gyro well fifth servo used control collective pitch main rotor can put quite strain batteries excellent cure provided SR Batteries manufactures high-capacity lightweight batteries replacements transmitter airborne battery packs packs will provide added flying time charge will make custom packs feel something extra-special needed no matter what batteries use its always good idea cycle periodically check capacities During typical day flying after having made several flights Ill also use expanded-scale voltmeter ESV test batteries under load make sure its still safe fly Helicopter radios may seem little complicated first little practice functions well others particular radio will become very easy logical use now features have become standard us chopper pilots wonder what manufacturers dreaming up next generation radios Products following manufacturers described article Airtronics Inc 11 Continued page 156 154 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 5060 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 responding advertisers mention read about ModelAviation
Edition: Model Aviation - 1987/08
Page Numbers: 52, 53, 152, 154
Radio Control Giant Scale John de Vries Colonel USAF Ret YOURS TRULY has just returned annual orgy Toledo number 33 Weak Signals club seventh visit northwestern Ohio city Toledo87 livedupto its well-deserved reputation trade show Wall-to-wall people marveled wonders model aviation almost everybody anybody model hobby world And60% 70% of Scale models competition Giant variety able obtain exhibitors pass show got spend some time Toledo Sports Arena setup day Although things tad confused excellent opportunity examine goodies up close Would believe all-aluminum-tubing Cub all-aluminum wings tail feathers Bolt bird together also use special cement Thats what popped cork Toledo year Although German-made Polks-merchandised aluminum Cub kit bit pricey its another situations can swap bucks labor come up beautiful biggie almost-scale construc tion couple other items Toledo tickled fancy amongst bunch almost-irresistible goodies new has around bit former high-tech field case displayed prototype form Matrix Enterprises Inc showed prototype all-ABS molded plastic field box has reversible plane supports alumi num legsall empty weight mere 10 lb structural bits pieces polycarbonate very strong plasticits used 35mm camera bodies versatile box should last next century appears rugged enough hold Giant models side quarterscale Spruce Goose Although its around day two Realistic Models Potomac MD bolts together neat shock-absorbing landing gear unit can adapted Giant Scale birds weigh up 40 lb use gear Giant Scale Stinson would easy fair sturdy aluminum landing gear legs prac tically Scale tail-dragger Whats Realistic people offer custom-made units really neat part gear leg individually sprung true prototype fashion Jim Messer wasnt guy did left Toledo crick neck looking up seems unvoiced conspir acy Northwest Ohio Lets hang Giant Scale models raftersand everybody did Jims contribution sore neck prototype new -scale Kitten ultralight kit two-tone blue white model Super Cub-like wheel pants Quadra hummer should fly like well-satisfied eagle does control like well-mannered trainer 52 Model Aviation Jim Messer witn giant irnen tne STARS flying field Olean NY makes kit Fred Fazzlo shows almost-ready-to-crank Big Morrisey Bravo IMAA Chapter 90s recent Winter Project Review Engines Quadra 50 planked entire model Joe Dolan big Aeronca C-3 atChapter9os Review Model spans9 ft weighs 11 lb built Balsa USA kit Note other models background Jim sez does photos model can tell isnt much way curvy stuff Kitten what cowl wheel pants Jim provides ready-to-use form Jim bends landing gears kits hand hot news category lot behind-the-scenes activity Toledo impacts directly us addicted Giant Scale other large models IMAAs board directors voted acquire liability insurance membership Initially itll increase LMAA dues $20 year will provide primary coverage Details insurance pro gram will course contained High Flight IMAAs quarterly newsletter/magazine IMAA board also generated some specific recommendations concerning model weights flying large models consideration AMA Executive Council next meeting can look some rather sweep ing changes big-model field sugges tions Special Interest Group IMAA adopted included AMA rule book Although Im certain itll appear greater detail Bob Dollys Wischer column well elsewhere magazine want add two-cents-worth whoopees recent FAI rules thrash Paris resulted some mighty good news Giant Scalers Bob Wischers report ofFAl Scale activity recent Paris FAIICIAM meeting reported last month Competition Newsletter section magazine RMcM Despite essentially noncompetitive nature Continued page 152 gf CESSNA 150 AEROBAT COSMIC WIND Cox Hobbies new E-Z Flyers perfect control line planes first time flyer Equipped famous Cox 049 engine newly designed snap starter get airborne flying fast After winning wings step up racy Cosmic Wind same easy starting Cox 049 engine insures lots exciting flight time See complete line Cox powered models accessories Hobby retailer today Enclose $100 SASE mini-catalog COX HOBBIES 1525 E Warner Ave Santa Ana CA 92705 August 1987 53 Ken Gerlits cowl fore Little Toot conducting Chapter go Review semi nar use liquid masking film producing sporty paint jobs MASTER AIRSCRIW performance value Master Airscrew propellers unbeatable Leader small Airfoil y E Series Electrics 12x8 15x12 SIZES Series 5V2x4 thru 6x4 GIF Series 7x4 thru lix 7 K Series 4-Strokes 12x6 thai 16x8 New Antique Series 12x6 13x6 14x7 16x7 WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 Carry Largest Only Stock Kraft Parts World .. Kraft alive working KRAFT FLYMIWEST WHAT FIX Authorized Warranty Service hREOUENCY CONVERSION $1000 Diecoont Regaler RopeIIAFT Mont Makes Models Concerted Toning Done Spectram Analyzer Also Service 7j AU E/C Futaba Full Time Servicenter Ihe Midwest 117 East Main St Northville Michigan 48167 Upper Lecel]Phone 1-313-348-0085 Meeterrtl Welcome AnotherChaptergo member Tommy Meyer retracting mechanism 1/4 scale Loening OLg amphibian 6-in spoked wheels custom-made An onboard electric starter system will drive retracting system EiDer LiWNKUBE WUUZ WeSiyfOWOijat agiaiNew Prop Adapter far Byron 4 or3 bledqdiirop ANEgI. Complete Fits Sache engine wltn7lS bolt pattern 5 Neffibg Extra uuy 31 -*325 37- W200fformulypoatg S49 34-flU42-*420 Glees body Opifee aeA5fagleea wheal pants TlwotJecoupled cowl apark advancefoam wing aN balaa Included A-Uba2oa-SNP27-tlbe4ozPIHP42IIbaSoi7HP Tfar Sinai Carburetor Unkage CDI Ignition ICH ElectronloeL 45 Volt Ignition Pad Safety Switch S Bolt Hub Realator Spark Plugs 1 Watrantyon Faulty Parts end WorknianablpLaw Kit ENew 2glece wing coaseralon Laaar bulk bqnea Laeer Hardwup 0 extra TG MFGU 857 High Mountain Rd North Halodon NJ 07508 427-3845 like 100-mAh cell OK lets Using same 1 5-minute timer allows us think 100-mAb capacity 400 milliamp-quarter-hour size Thus sets charge current 04 amps 15 minutes tank full Another aid doing think 100 milliamps hour milliamps milliamps hour As final example lets check out popular 800-mAh 08 Ah size becomes 800 mA hour mps mps 15 minutes Presto practice Ive written times personally rarely try fill tank because Im basically sport flier want minimize accidental overfill possible cell dam age So generalization normally charge about 90% full give take little always beginning empty cell/pack example use about 42 44 amps recharging 12s since 12 amps hour 24 amps 48 amps 90% 432 amps Also normally use three-amp charge current 15 minutes 800s hope helps some Geared cobalts Astro very popular because speed reduction corresponding torque increase allow larger props used model types fly much better way gears require some care feeding too heres tale woe illustrate anxious try geared cobalt new Caliph failed pay attention what doing haste forgot apply some grease per instructions gears after installed new set new cobalt purchased gears motor separately different times Well gears both metal lasted about three four flights started sounding like concrete mixer lack lube ruined gears meso caution learn keep em both clean carefully greased use small amount white lithium auto grease new Caliph see last months column continues please very much Ive some opportunity try different motors So far have flown Caliph Keller 25/12 pictured last month Astro geared 05 15 cobalts Kyosho geared 360PT Tower Hobbies has received very limited flight timemuch bad weatherand its premature report com parative results now will however tell two motors used rather unconven tionally Theres enough column space month go detail really want accumulate flight time first now let just tease First may recall May column indicated motors can very often used varied ways shown instructions magazine material matter Well thats just exactly sort thing Ive doing Caliph point Ill just say right prop selections Ive flying Caliph geared cobalt 05 12 cells economy geared Kyosho 360PT nine cells want accumulate experience combinations initial results rather exciting coming up meantime Ill just get some Caliph/installation photos may prove help ful planning new installation its some other model photo details small addition motor mounting technique described last month So far motor clamps made using Golden Rod inners yellow part Sullivan blue outer sheath/yellow inner control-rod set have worked very well technique has allowed easy interchange motors mentioned above has trouble-free except time prop hit ground landing happened 2 56 screw head washer clamp pulled through -in lite-ply motor mount floor What needed larger washer solution shown photos cut two strips thin -in-wide hobby store brass stock drilled 3A2-in holes line up versatile variety existing Caliph motor floor used strips giant washers So far have no problems Another photo shows modified steerable tail wheel installation dont like idea having tail wheel mounted rudder because thing use tape hinges Electrics see About Electrics part nine May 1984 issue MA case rudders shouldnt have take abuse installation tail wheel has its own internal fuselage-high brass-tubing bearing separate linkage rudder pushrod benefit addition strength attained individual adjustability throw both rudder steeringand favorite tape hinges re main unburdened Odds ends As reminder readers since continue askId like again encourage buy copy Mitch Polings book t Build Fly Electric-Powered Modeis book experienced Electric writer know published Kaim back very worth $995 selling price As Ive Indicated previous columns readers have reacted very intensely posi tively April offering motor specifica tions/standards idea Some readers apparently have thought about detail have come up penetrating questions like does motor voltage current rpm specifications tell us prop use Well certainly knew remained question wrote column intent follow up information covering matter So stay tuned Still upcoming sometime inexpen sively modify nifty Astro DC DC Super Charger make constant-current charger really works makes charging vastly controlled opportune Finally may wonder just important factor excess weight model airplane can let suggest simple experiment Take favorite familiar sport aerobatic Electricone used flying know well add weight Put about 10% 15 % weight CG fly things would ordinarily expect plane doand see what happens Betcha just aint same ol plane closing thought Try think geared motors Rather try think geared props effect gears belts adjust usable size prop motor motor motorit doesnt change later too Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Happy Silent Summer Flying Fun Everyone RC Giant Scale/de Vries Continued page 53 Big Bird get-togethers rallies fun-flies several among number take great pleasure exercising Giant Scale portion rule book seems theres now provisional International FAI class big uns can competition highest level Dolly didnt have enough time tell FM choseto adopt Australian rules Big Bird competition guess start Continued page 154 152 Model Aviation somewhere Twill some time however before therell full-blown Scale Big-Bird Internats really shake out new FAI rules Italy 88 therell probably Giant event Canada 1990 biggest best news Paris removal engine displacement restrictions increase allowable model weight 15-lbplus should go long way toward making international Scale class models FAI Scale/AMA Precision Scale bunch attractive potential competitors wouldnt take too much effort create true scale Big Bird under revised rules just received report swell new idea Leo Ford editor Hangar Flyer newsletter Colorado Dawn Patrol IMAA Chapter 90 sent 31 photographs Chuck Nelson Tommy Meyer processed Tom Ryan pictures taken Chapter 90s Winter Project Reviewsomething entirely new different exciting Sunday March 15 everybody Chapter brought his/her winters project display Waynes Automotive beautiful downtown Denver talking about thing set drawings models ready crank take off Twas ultimate show-and-tell super-neat way reinspire troops midst winter building season also opportunity present building seminars inspired idea other clubs/chapters would well copy next year weather agin us Ryan wIll soon have wheels sincere thanks Bob Lonseth Sylvania OH Harry Apoian Rolling Hills CA Bob pointed out Caterpillar tractors have large 0-rings part Duo-Cone seals might suitable tires homemade wheels Harry noted 6-in wheels scale configuration commercially available Germany Thanks Bob Harry rest wrote potential solutions Ryan wheel problem Keep fingers out prop fire extinguisher close hand batteries charged Giant Scale bird safe flying condi tionand well back next month new idea three John de Vries 4610 MoffatLn Colorado Springs CO 80915 RC Pylon Racing/Hager Continued page 54 3 Submerge fronthousing swish crank shaft listening/feeling rough spots may indicate presence metal particles Re peat process until crankshaft spins freely 4 Apply Marvel Oil liberally bed rings crankshaft 5 same thing other parts 6 Reassemble enginehead-bolt torque should 7 point onward engine must kept clean wrap cotton 8 Break-in procedure Mount engine Q500 aircraft preferably using metal engine mount Affix 9 x 6 Master Airscrew prop en carburetor idle screw two turns present position Open main needle valve five turns ground no muffler possible Run engine very rich minute let cool repeat process three times engine running cool can hold cylinder head its running Break-in procedure air Install muffler sure engine set very rich still flyable Low throttle should kill en gine due overly rich idie setting Fly enginethree four flights shallow climbs dives mostly flat gentle turns After four five flights begin doing large reverse Cuban Eights climb 200 roll inverted large de loop 200 climb opposite direction etc Continue process gradually leaning out engine adding stress flight maneuvers After 12 15 flights four five minutes per flight engine should race-ready Keys success 1 Cleanliness 2 Patience 3 little luck Hey gang really works alistofQ500 kits sources Thunder Q-11 Pauls Flying Stuff PO Box 121 Escondido CA 92025 phone 619 743-5458 China Clipper Model Tech available hobby stores T Tailed California Speed Pros 32221 Alipaz No 15 San Juan Capistrano CA 92675 phone 714 661-7430 Spickler Spickler Models available hobby stores Texas Outlaw Dickie Ritch 4101 Lar Houston TX 77025 phone 713 661-5458 Scat Cat Flite Line Models available hobby stores Yellow Jacket Mills Airplane Models 2868 Hambleton Rica MD 21140 phone 301 956-3308 See races Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 55 practice autorotation both nice ma neuver perform also handy proficient should engine quit during flight some radios Throttle Hold switch activated collective controlled second set pitch curves described earlier resulting allowing greater range collective required descent landing disturbing feature newer Helicopter transmitters particular operating pulse-code modulation PCM seem operate significantly shorter period time singie charge past experience has prepared us accept Airborne battery requirements have also increased power directional-control gyro well fifth servo used control collective pitch main rotor can put quite strain batteries excellent cure provided SR Batteries manufactures high-capacity lightweight batteries replacements transmitter airborne battery packs packs will provide added flying time charge will make custom packs feel something extra-special needed no matter what batteries use its always good idea cycle periodically check capacities During typical day flying after having made several flights Ill also use expanded-scale voltmeter ESV test batteries under load make sure its still safe fly Helicopter radios may seem little complicated first little practice functions well others particular radio will become very easy logical use now features have become standard us chopper pilots wonder what manufacturers dreaming up next generation radios Products following manufacturers described article Airtronics Inc 11 Continued page 156 154 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 5060 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 responding advertisers mention read about ModelAviation
Edition: Model Aviation - 1987/08
Page Numbers: 52, 53, 152, 154
Radio Control Giant Scale John de Vries Colonel USAF Ret YOURS TRULY has just returned annual orgy Toledo number 33 Weak Signals club seventh visit northwestern Ohio city Toledo87 livedupto its well-deserved reputation trade show Wall-to-wall people marveled wonders model aviation almost everybody anybody model hobby world And60% 70% of Scale models competition Giant variety able obtain exhibitors pass show got spend some time Toledo Sports Arena setup day Although things tad confused excellent opportunity examine goodies up close Would believe all-aluminum-tubing Cub all-aluminum wings tail feathers Bolt bird together also use special cement Thats what popped cork Toledo year Although German-made Polks-merchandised aluminum Cub kit bit pricey its another situations can swap bucks labor come up beautiful biggie almost-scale construc tion couple other items Toledo tickled fancy amongst bunch almost-irresistible goodies new has around bit former high-tech field case displayed prototype form Matrix Enterprises Inc showed prototype all-ABS molded plastic field box has reversible plane supports alumi num legsall empty weight mere 10 lb structural bits pieces polycarbonate very strong plasticits used 35mm camera bodies versatile box should last next century appears rugged enough hold Giant models side quarterscale Spruce Goose Although its around day two Realistic Models Potomac MD bolts together neat shock-absorbing landing gear unit can adapted Giant Scale birds weigh up 40 lb use gear Giant Scale Stinson would easy fair sturdy aluminum landing gear legs prac tically Scale tail-dragger Whats Realistic people offer custom-made units really neat part gear leg individually sprung true prototype fashion Jim Messer wasnt guy did left Toledo crick neck looking up seems unvoiced conspir acy Northwest Ohio Lets hang Giant Scale models raftersand everybody did Jims contribution sore neck prototype new -scale Kitten ultralight kit two-tone blue white model Super Cub-like wheel pants Quadra hummer should fly like well-satisfied eagle does control like well-mannered trainer 52 Model Aviation Jim Messer witn giant irnen tne STARS flying field Olean NY makes kit Fred Fazzlo shows almost-ready-to-crank Big Morrisey Bravo IMAA Chapter 90s recent Winter Project Review Engines Quadra 50 planked entire model Joe Dolan big Aeronca C-3 atChapter9os Review Model spans9 ft weighs 11 lb built Balsa USA kit Note other models background Jim sez does photos model can tell isnt much way curvy stuff Kitten what cowl wheel pants Jim provides ready-to-use form Jim bends landing gears kits hand hot news category lot behind-the-scenes activity Toledo impacts directly us addicted Giant Scale other large models IMAAs board directors voted acquire liability insurance membership Initially itll increase LMAA dues $20 year will provide primary coverage Details insurance pro gram will course contained High Flight IMAAs quarterly newsletter/magazine IMAA board also generated some specific recommendations concerning model weights flying large models consideration AMA Executive Council next meeting can look some rather sweep ing changes big-model field sugges tions Special Interest Group IMAA adopted included AMA rule book Although Im certain itll appear greater detail Bob Dollys Wischer column well elsewhere magazine want add two-cents-worth whoopees recent FAI rules thrash Paris resulted some mighty good news Giant Scalers Bob Wischers report ofFAl Scale activity recent Paris FAIICIAM meeting reported last month Competition Newsletter section magazine RMcM Despite essentially noncompetitive nature Continued page 152 gf CESSNA 150 AEROBAT COSMIC WIND Cox Hobbies new E-Z Flyers perfect control line planes first time flyer Equipped famous Cox 049 engine newly designed snap starter get airborne flying fast After winning wings step up racy Cosmic Wind same easy starting Cox 049 engine insures lots exciting flight time See complete line Cox powered models accessories Hobby retailer today Enclose $100 SASE mini-catalog COX HOBBIES 1525 E Warner Ave Santa Ana CA 92705 August 1987 53 Ken Gerlits cowl fore Little Toot conducting Chapter go Review semi nar use liquid masking film producing sporty paint jobs MASTER AIRSCRIW performance value Master Airscrew propellers unbeatable Leader small Airfoil y E Series Electrics 12x8 15x12 SIZES Series 5V2x4 thru 6x4 GIF Series 7x4 thru lix 7 K Series 4-Strokes 12x6 thai 16x8 New Antique Series 12x6 13x6 14x7 16x7 WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 Carry Largest Only Stock Kraft Parts World .. Kraft alive working KRAFT FLYMIWEST WHAT FIX Authorized Warranty Service hREOUENCY CONVERSION $1000 Diecoont Regaler RopeIIAFT Mont Makes Models Concerted Toning Done Spectram Analyzer Also Service 7j AU E/C Futaba Full Time Servicenter Ihe Midwest 117 East Main St Northville Michigan 48167 Upper Lecel]Phone 1-313-348-0085 Meeterrtl Welcome AnotherChaptergo member Tommy Meyer retracting mechanism 1/4 scale Loening OLg amphibian 6-in spoked wheels custom-made An onboard electric starter system will drive retracting system EiDer LiWNKUBE WUUZ WeSiyfOWOijat agiaiNew Prop Adapter far Byron 4 or3 bledqdiirop ANEgI. Complete Fits Sache engine wltn7lS bolt pattern 5 Neffibg Extra uuy 31 -*325 37- W200fformulypoatg S49 34-flU42-*420 Glees body Opifee aeA5fagleea wheal pants TlwotJecoupled cowl apark advancefoam wing aN balaa Included A-Uba2oa-SNP27-tlbe4ozPIHP42IIbaSoi7HP Tfar Sinai Carburetor Unkage CDI Ignition ICH ElectronloeL 45 Volt Ignition Pad Safety Switch S Bolt Hub Realator Spark Plugs 1 Watrantyon Faulty Parts end WorknianablpLaw Kit ENew 2glece wing coaseralon Laaar bulk bqnea Laeer Hardwup 0 extra TG MFGU 857 High Mountain Rd North Halodon NJ 07508 427-3845 like 100-mAh cell OK lets Using same 1 5-minute timer allows us think 100-mAb capacity 400 milliamp-quarter-hour size Thus sets charge current 04 amps 15 minutes tank full Another aid doing think 100 milliamps hour milliamps milliamps hour As final example lets check out popular 800-mAh 08 Ah size becomes 800 mA hour mps mps 15 minutes Presto practice Ive written times personally rarely try fill tank because Im basically sport flier want minimize accidental overfill possible cell dam age So generalization normally charge about 90% full give take little always beginning empty cell/pack example use about 42 44 amps recharging 12s since 12 amps hour 24 amps 48 amps 90% 432 amps Also normally use three-amp charge current 15 minutes 800s hope helps some Geared cobalts Astro very popular because speed reduction corresponding torque increase allow larger props used model types fly much better way gears require some care feeding too heres tale woe illustrate anxious try geared cobalt new Caliph failed pay attention what doing haste forgot apply some grease per instructions gears after installed new set new cobalt purchased gears motor separately different times Well gears both metal lasted about three four flights started sounding like concrete mixer lack lube ruined gears meso caution learn keep em both clean carefully greased use small amount white lithium auto grease new Caliph see last months column continues please very much Ive some opportunity try different motors So far have flown Caliph Keller 25/12 pictured last month Astro geared 05 15 cobalts Kyosho geared 360PT Tower Hobbies has received very limited flight timemuch bad weatherand its premature report com parative results now will however tell two motors used rather unconven tionally Theres enough column space month go detail really want accumulate flight time first now let just tease First may recall May column indicated motors can very often used varied ways shown instructions magazine material matter Well thats just exactly sort thing Ive doing Caliph point Ill just say right prop selections Ive flying Caliph geared cobalt 05 12 cells economy geared Kyosho 360PT nine cells want accumulate experience combinations initial results rather exciting coming up meantime Ill just get some Caliph/installation photos may prove help ful planning new installation its some other model photo details small addition motor mounting technique described last month So far motor clamps made using Golden Rod inners yellow part Sullivan blue outer sheath/yellow inner control-rod set have worked very well technique has allowed easy interchange motors mentioned above has trouble-free except time prop hit ground landing happened 2 56 screw head washer clamp pulled through -in lite-ply motor mount floor What needed larger washer solution shown photos cut two strips thin -in-wide hobby store brass stock drilled 3A2-in holes line up versatile variety existing Caliph motor floor used strips giant washers So far have no problems Another photo shows modified steerable tail wheel installation dont like idea having tail wheel mounted rudder because thing use tape hinges Electrics see About Electrics part nine May 1984 issue MA case rudders shouldnt have take abuse installation tail wheel has its own internal fuselage-high brass-tubing bearing separate linkage rudder pushrod benefit addition strength attained individual adjustability throw both rudder steeringand favorite tape hinges re main unburdened Odds ends As reminder readers since continue askId like again encourage buy copy Mitch Polings book t Build Fly Electric-Powered Modeis book experienced Electric writer know published Kaim back very worth $995 selling price As Ive Indicated previous columns readers have reacted very intensely posi tively April offering motor specifica tions/standards idea Some readers apparently have thought about detail have come up penetrating questions like does motor voltage current rpm specifications tell us prop use Well certainly knew remained question wrote column intent follow up information covering matter So stay tuned Still upcoming sometime inexpen sively modify nifty Astro DC DC Super Charger make constant-current charger really works makes charging vastly controlled opportune Finally may wonder just important factor excess weight model airplane can let suggest simple experiment Take favorite familiar sport aerobatic Electricone used flying know well add weight Put about 10% 15 % weight CG fly things would ordinarily expect plane doand see what happens Betcha just aint same ol plane closing thought Try think geared motors Rather try think geared props effect gears belts adjust usable size prop motor motor motorit doesnt change later too Please send comment question SASE please Bob Kopski 25 West End Dr Lansdale PA 19446 Happy Silent Summer Flying Fun Everyone RC Giant Scale/de Vries Continued page 53 Big Bird get-togethers rallies fun-flies several among number take great pleasure exercising Giant Scale portion rule book seems theres now provisional International FAI class big uns can competition highest level Dolly didnt have enough time tell FM choseto adopt Australian rules Big Bird competition guess start Continued page 154 152 Model Aviation somewhere Twill some time however before therell full-blown Scale Big-Bird Internats really shake out new FAI rules Italy 88 therell probably Giant event Canada 1990 biggest best news Paris removal engine displacement restrictions increase allowable model weight 15-lbplus should go long way toward making international Scale class models FAI Scale/AMA Precision Scale bunch attractive potential competitors wouldnt take too much effort create true scale Big Bird under revised rules just received report swell new idea Leo Ford editor Hangar Flyer newsletter Colorado Dawn Patrol IMAA Chapter 90 sent 31 photographs Chuck Nelson Tommy Meyer processed Tom Ryan pictures taken Chapter 90s Winter Project Reviewsomething entirely new different exciting Sunday March 15 everybody Chapter brought his/her winters project display Waynes Automotive beautiful downtown Denver talking about thing set drawings models ready crank take off Twas ultimate show-and-tell super-neat way reinspire troops midst winter building season also opportunity present building seminars inspired idea other clubs/chapters would well copy next year weather agin us Ryan wIll soon have wheels sincere thanks Bob Lonseth Sylvania OH Harry Apoian Rolling Hills CA Bob pointed out Caterpillar tractors have large 0-rings part Duo-Cone seals might suitable tires homemade wheels Harry noted 6-in wheels scale configuration commercially available Germany Thanks Bob Harry rest wrote potential solutions Ryan wheel problem Keep fingers out prop fire extinguisher close hand batteries charged Giant Scale bird safe flying condi tionand well back next month new idea three John de Vries 4610 MoffatLn Colorado Springs CO 80915 RC Pylon Racing/Hager Continued page 54 3 Submerge fronthousing swish crank shaft listening/feeling rough spots may indicate presence metal particles Re peat process until crankshaft spins freely 4 Apply Marvel Oil liberally bed rings crankshaft 5 same thing other parts 6 Reassemble enginehead-bolt torque should 7 point onward engine must kept clean wrap cotton 8 Break-in procedure Mount engine Q500 aircraft preferably using metal engine mount Affix 9 x 6 Master Airscrew prop en carburetor idle screw two turns present position Open main needle valve five turns ground no muffler possible Run engine very rich minute let cool repeat process three times engine running cool can hold cylinder head its running Break-in procedure air Install muffler sure engine set very rich still flyable Low throttle should kill en gine due overly rich idie setting Fly enginethree four flights shallow climbs dives mostly flat gentle turns After four five flights begin doing large reverse Cuban Eights climb 200 roll inverted large de loop 200 climb opposite direction etc Continue process gradually leaning out engine adding stress flight maneuvers After 12 15 flights four five minutes per flight engine should race-ready Keys success 1 Cleanliness 2 Patience 3 little luck Hey gang really works alistofQ500 kits sources Thunder Q-11 Pauls Flying Stuff PO Box 121 Escondido CA 92025 phone 619 743-5458 China Clipper Model Tech available hobby stores T Tailed California Speed Pros 32221 Alipaz No 15 San Juan Capistrano CA 92675 phone 714 661-7430 Spickler Spickler Models available hobby stores Texas Outlaw Dickie Ritch 4101 Lar Houston TX 77025 phone 713 661-5458 Scat Cat Flite Line Models available hobby stores Yellow Jacket Mills Airplane Models 2868 Hambleton Rica MD 21140 phone 301 956-3308 See races Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC Helicopters/Jolly Continued page 55 practice autorotation both nice ma neuver perform also handy proficient should engine quit during flight some radios Throttle Hold switch activated collective controlled second set pitch curves described earlier resulting allowing greater range collective required descent landing disturbing feature newer Helicopter transmitters particular operating pulse-code modulation PCM seem operate significantly shorter period time singie charge past experience has prepared us accept Airborne battery requirements have also increased power directional-control gyro well fifth servo used control collective pitch main rotor can put quite strain batteries excellent cure provided SR Batteries manufactures high-capacity lightweight batteries replacements transmitter airborne battery packs packs will provide added flying time charge will make custom packs feel something extra-special needed no matter what batteries use its always good idea cycle periodically check capacities During typical day flying after having made several flights Ill also use expanded-scale voltmeter ESV test batteries under load make sure its still safe fly Helicopter radios may seem little complicated first little practice functions well others particular radio will become very easy logical use now features have become standard us chopper pilots wonder what manufacturers dreaming up next generation radios Products following manufacturers described article Airtronics Inc 11 Continued page 156 154 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 5060 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $20000 5501 WCOMO SANTA ANA CALIFORNIA 92703 714 826-6861 responding advertisers mention read about ModelAviation