ALTHOUGH readers unaware Giant Scale columnists really know other course Model Aviation readers know Dick Phillips writes Giant Steps Model Airplane News publishing business together Both us however know rest compadres like Frank Costello writes Big Bird column Flying Models Bill Skipper does same monthly R/C Report Ken Runestrand Big Beautiful columnist RCM big Al Alman word-processes monthly column Mod el Builder Weve met exchanged pleasantries Scale writers other magazines well Peo ple like Wischers Model Aviation Cliff Tacie Steve Gray pen Model Builder Col Art Johnson RCM great Bill Hannan Mr Peanut himself Model Builder Phil Kent writes great Brit ish magazine RC&ME Radio Control & Model Engineering Johan Ehlers pub lishes South African model magazine find have lot common us modelers first writers second writing tasks however really cut design ing building flying timemore some others also spend considerable amount time answering reader letters its readily apparent drawing board workshop club-field time has scheduled keep up hobby Yet find time read others columns practically month because thats way keep touch another Most us receive press releases same manufacturers try include information interest readers monthly columns reason name-dropping harangue suggest YOU want really up everything thats happening Giant Scale Schoolyard Scale everything between greater variety columns read knowledgeable youll become truth known yours truly indulges himself reading output columnists concerned Free Flight Control Line Scale Theres LOT good useful information gleaned monthly musings friends Theyre great guys Theres something thats bugging yours truly quite Although its tention gore anybodys ox prices Giant Scale kits seem spiralling stratosphere cursory check ads will reveal fall $250 $300 category goodly number being much expensive couple/three years ago clerked local hobby shop cost getting RC air planes ran between $225 $275 tariffs cluded kit engine four-channel radio auxil iary bits pieces get customer airborne scratch Admittedly talking Gi ant Scale Giant kits few far between numbers represent rational point comparison however old bugaboo inflation has added $25 $50 figures noted diminishing pur chasing power dollar has boosted prices great Japanese engines radios current total necessary put 40powered RC model blue still within same ball park compare outfit cost price Giant Scale kit num bers take completely different complexion isnt inconceivable itll cost $1000 just shove throttle forward kitbuilt Giant Admittedly kit hand saves bunch la bor part modeller Prefabrication will get airborne sooner scratch/plans building what cost Scares anyone hobby mentions Giant Scale immediately think big birds pow ered snarling gas burners ARE large RC models engine requirements can satisfied hummers 45 60 cu displacement class Case point Bill Effingers latest Plan N Pattern sets Bills drawn 4-scale Cessna AW 81in wingspan its inch larger IMAA defined minimum Giant yet basic recom mended engine 45 although Bill figures itll fly anything 25 80 twoor four-cycle 904 squares high monoplane wing Bill recommends ideal first Scale model Built light optional four-channel radio setup should winner particularly youre upgrading Giant Scale have appropriate engine hand youre interested contact Bill WE Technical Services 526 Lorell Terrace Atlanta GA 30328 plans patterns $1495 great magazine writers talked about above person Ive never met faceto-face Bill Hannan Weve maintained ex tensive correspondence over years however latest mailing new book Peanuts & Pistachios Vol 3 photo 38 Model Aviation Radio Control Giant Scale John de Vries Colonel USAF Ret 4610 Moffac Ln Colorado Springs CO 80915 PhillIp Kents W Yorkshire England magnificent Henachel 126 spans 77 uses Laser 75 four-stroke power Hes going repaint beautyin winter camouflagel Colonels good friend Jerry Smith has relocated Ackworth GA sends pair photos planes built Scale whiz Slick Larsen Marietta GA left 26-lb quarter-scale Gloater Gladiator roars aloft under 040 power Crafts fuel tank has Cub-type float gauge Slick can check gas opening hatchi Waco UPF-7 R built Dick Barrons plans Pilotless craft uses Q40 power Phil Kent wears Golden Era garb required participants recent rally Olden War den Aerodrome servicing Giant One-third-scale Druine Turbulent built Englands Stephen Greenwood sports Tiger Club markings Sad say craft lost its second outing Its miniature pilot came adrift lodged empennage Farman Moustique drawing Wedell Williams No 92 front cover Wedeli-Williams three-views its another winner well worth five bucks Bill asks PO Box Escondido CA 92025 As weve noted pages before draw ings Bill makes wonderful subjects en largement Giant Scale sizes now Bill car ries Peanut Scale drawings Ulises Alvarez Montevideo Uruguay st demand Giant Scale treatment fascinating phone call other day some nice people Terre Haute IN As know dean Scale documenta tion Paul Matt passed away recently some confusion what would happen Pauls Historical Aviation Al bum publications store precise Scale drawings worry theyre good hands friendly people Sunshine House Inc PO Box 2065 Terre Haute IN 47802 Pauls worthy successors plan carrying tradition told theyre planning Continued page 133 Cessna AW subject Bill Effingers latest plan set Although true Giant its small enough flown electric power Classic Glass Grumman Wildcat 7 KIT FEATURES Polyester fiberglass fusalage cowling retractable landing 92 wingspan gear Foam cores wing stab Available major production variations F4F-3 -3A -4 FM-i FM-2 Semi-Kit Fusalage cowling foam cores wing stab canopy retractable landing gear plans 27500 Complete Kit Everything listed semi-kit plus wood parts hardware necessary complete kit including 1/64 plywood sheeting wings $45000 Deluxe Kit Complete kit fusalage preassembled wings stab presheeted control surfaces prebuilt $85000 add $1 500 shipping Information Package $100 /MasterCard accepted Idaho ras add 5% saleatax Mike Zamber Classic Glass PO Box 503 Biackfoat Idaho 83221-0503 785-2309 I1 J reds cowls kits plans Strong lightweight one-piece construction Exact duplicates manufacturers original Also radial cowls wheelpants SendSlOOtor8-pg brochure Orcall 703-890-6017 9am-9 pm EDT phone orders information ASTER Dept MA Rt 1 Box 530 Goodview VA 24095 SMITh ZlfUU85ZZD 7950 Sar Gob e Road codeo CA 53422 455-1717 July1988 39 69716578 6925 AVAILABLE AT AMERICAS FiNEST HOBBY SHOPS 69786528 DISTRIBUTED BY RC Giant Scale/de Vries Continued page 39 new volumean anthology Matts Waco draw ings articles Well leave month Wonderful World Oz Dorothy Toto ever people Century Systems America PO Box 4085 Costa Mesa CA 92626 Oz reference course refers source productsthe great Australian subcontinent Century Systems has some neatest electronic equipment weve seen like NiCd recyclers timers attached gyro sys tems lost-model alarms four-channel fail-safe devices airborne battery-switching black boxes latter item provides dual battery power strongly recommended Giant Scale experts An SASE will probably produce mail box filler house cant wait Century Systems has a toll-free order number 1-800-999-1214 Remember Giant Scale fun RC Electrics/Kopski Continued page 41 makes feel bad because Im loss re spond What mean far know NO good Electric ARFs suitable ba sic flight training purposes RC flight background always suggest poten tially spirited Etude again have seen what would consider basic Electric ARF flight trainer persons NO prior flight experi ence Manufacturers take note good industry folks chooses pursue please good jobone will promote both Elec tric image Its easy tempting throw together some overweight underpowered plastic dog just limps around proves Electrics no good command DONT DO IT subject steadfast Electric rec ommendation first-time other time Electric flight Leisure Amptiquebut its ARF An equally excellent low-cost choice interested Glider configuration Gold berg Electra first truly successful com plete Electric kitthe showed indus try importantly its worth doing own view has modeling indus try large has historically viewed Electric merely remote stepchild worth bothering WRONG Goldberg folks proved Electra What proof Proof others follow lead Just simple idea packaging adequate motor wiring prop such kit design flies well took Success came because its direct overthe-counter answer popular Electric question time What motor what plane Nice work Carl Goldberg Models Inc Its raining write reminds something experienced last spring Id like pass along Saturday March 22 1987 keep logsee August 1984 issue MA then-brand-new Caliph ready fly drizzlingbut didnt matter new plane just couldnt wait get air Besides whats little wetness Neither MonoKote nor would mind Now before go July August 1987 issues MA may just want dig em out look photo details Ca liph featured large air intakes just behind mounted Jomar SC-4 speed control First flights went very well during third flight something funny happening motor control rpm became erratic Fi nally motor came full stayed way till battery depleted make story simple speed control fine layer wa ter itthe result drizzle being ingested air intakes moist circuit board prevented SC-4 working properly returned full nor mal operation blow-dried carefully TOO hot MonoKote gun Sorta reminds some old wives tale about electric ity water mixing something like Larger power systems topic opened up April May t988 issues discus sion promised later Well its later some thoughts breaking 05 barrier Multi-YUK 05 such appropriate way describe electric motor As mentioned before 15 view excellent choice going past sevencell limit because its previously de scribed versatility also because low est cost bigger systems Also mentioned fact have six Cobalt 15s have motorsI also have some performance data gives chance demonstrate performance samplean unusual opportun ity just fun Im going clude comparable data some other iSs well RPM 12 3 4 5 6 7 8 9 data Table 1 presents what call prop power Now fact entitlement some what misnomer What really mean motor power input required turn prop specific listing motor electrical input power motor-volts times motor-amps re quired turn specific prop over chosen range rpm values data taken adjusting applied motor voltage power supply its special high-power unit until rpm reached desired values noting voltage current drain data collected bench over about six-year period same prop used throughout Since time period included wide range shop air conditions temperature humidity some lack control con tained herein Nevertheless should give good representation prop power haves Table 2 different kind table listing gives average voltage current six cobalt iSs power levels table Also included minimum maximum power extremes ie best worst motors As can readily seen performPRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM SPINNERS RetailApprax Pan NaSizePriceWeight TT1500 .. 11/2 S1395058ez 1T175B .. 13/4 1495 . 095ox rT200-B z TI-225-B .. 21/41695150oz TT226-B .. 21/4FAIl1895150oz TT2508 .. 21/2189519002 T1251-B 21/2FAI 2095 170oz TT275B . 2295220ox T1276B /4FAt2495. 20002 rT300B 3269526002 TT-301B 3 FAt2895250oz TT325-B 369534002 TT350B . 3112 4995. 470oz fl3750 5995520oz TT400B 995. 57002 3 Pieces Cone Back Plate Retainer Screw Nole 3 4 Blade Spinners Available Sizes Add 53 00 Per Spinner PROP NUT ADAPTORS U Ot Part NoSize TT140A1/428 IT147A1/428/7mm TT610A 6 x 1 0mm TT710A7 x 1 0mm 1T516A5/1624 tT-518A5/1624/8mm TT-810A8 x 1 0mm TT825AOx 1 25mm TT-375A3/824 TT-125AlOx 1 25mm RetailAppros PriceWeighi 5495061 02 4950 61 02 495063sz 495082 02 495076oz 495 176oz 495I 76 02 4950 75 02 595ll7oz 5951 l5oz 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change milhovt notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 July 1988 133 Table 1 MOTOR INPUT POWER 15-SIZED MOTORS AT VARIED RPM Top Flite 8 x 4 wood prop power shown watts Motor 900064666268616360 iQOGO 599i55Si8589555390 11000liti22itS127ii3itS1211i2i22 i2000156i60iso168152151ISi149i42 i3tO0202220i97i95195 MotorsI through 6 Astro cobalt15srepresentingthe very earliest ones very newest Motors 7 5 Asleo super ferrite ISs Finally motorS isa nine-year-old early version Astro black-back 15 thats J-3 since 1979
Edition: Model Aviation - 1988/07
Page Numbers: 38, 39, 133
ALTHOUGH readers unaware Giant Scale columnists really know other course Model Aviation readers know Dick Phillips writes Giant Steps Model Airplane News publishing business together Both us however know rest compadres like Frank Costello writes Big Bird column Flying Models Bill Skipper does same monthly R/C Report Ken Runestrand Big Beautiful columnist RCM big Al Alman word-processes monthly column Mod el Builder Weve met exchanged pleasantries Scale writers other magazines well Peo ple like Wischers Model Aviation Cliff Tacie Steve Gray pen Model Builder Col Art Johnson RCM great Bill Hannan Mr Peanut himself Model Builder Phil Kent writes great Brit ish magazine RC&ME Radio Control & Model Engineering Johan Ehlers pub lishes South African model magazine find have lot common us modelers first writers second writing tasks however really cut design ing building flying timemore some others also spend considerable amount time answering reader letters its readily apparent drawing board workshop club-field time has scheduled keep up hobby Yet find time read others columns practically month because thats way keep touch another Most us receive press releases same manufacturers try include information interest readers monthly columns reason name-dropping harangue suggest YOU want really up everything thats happening Giant Scale Schoolyard Scale everything between greater variety columns read knowledgeable youll become truth known yours truly indulges himself reading output columnists concerned Free Flight Control Line Scale Theres LOT good useful information gleaned monthly musings friends Theyre great guys Theres something thats bugging yours truly quite Although its tention gore anybodys ox prices Giant Scale kits seem spiralling stratosphere cursory check ads will reveal fall $250 $300 category goodly number being much expensive couple/three years ago clerked local hobby shop cost getting RC air planes ran between $225 $275 tariffs cluded kit engine four-channel radio auxil iary bits pieces get customer airborne scratch Admittedly talking Gi ant Scale Giant kits few far between numbers represent rational point comparison however old bugaboo inflation has added $25 $50 figures noted diminishing pur chasing power dollar has boosted prices great Japanese engines radios current total necessary put 40powered RC model blue still within same ball park compare outfit cost price Giant Scale kit num bers take completely different complexion isnt inconceivable itll cost $1000 just shove throttle forward kitbuilt Giant Admittedly kit hand saves bunch la bor part modeller Prefabrication will get airborne sooner scratch/plans building what cost Scares anyone hobby mentions Giant Scale immediately think big birds pow ered snarling gas burners ARE large RC models engine requirements can satisfied hummers 45 60 cu displacement class Case point Bill Effingers latest Plan N Pattern sets Bills drawn 4-scale Cessna AW 81in wingspan its inch larger IMAA defined minimum Giant yet basic recom mended engine 45 although Bill figures itll fly anything 25 80 twoor four-cycle 904 squares high monoplane wing Bill recommends ideal first Scale model Built light optional four-channel radio setup should winner particularly youre upgrading Giant Scale have appropriate engine hand youre interested contact Bill WE Technical Services 526 Lorell Terrace Atlanta GA 30328 plans patterns $1495 great magazine writers talked about above person Ive never met faceto-face Bill Hannan Weve maintained ex tensive correspondence over years however latest mailing new book Peanuts & Pistachios Vol 3 photo 38 Model Aviation Radio Control Giant Scale John de Vries Colonel USAF Ret 4610 Moffac Ln Colorado Springs CO 80915 PhillIp Kents W Yorkshire England magnificent Henachel 126 spans 77 uses Laser 75 four-stroke power Hes going repaint beautyin winter camouflagel Colonels good friend Jerry Smith has relocated Ackworth GA sends pair photos planes built Scale whiz Slick Larsen Marietta GA left 26-lb quarter-scale Gloater Gladiator roars aloft under 040 power Crafts fuel tank has Cub-type float gauge Slick can check gas opening hatchi Waco UPF-7 R built Dick Barrons plans Pilotless craft uses Q40 power Phil Kent wears Golden Era garb required participants recent rally Olden War den Aerodrome servicing Giant One-third-scale Druine Turbulent built Englands Stephen Greenwood sports Tiger Club markings Sad say craft lost its second outing Its miniature pilot came adrift lodged empennage Farman Moustique drawing Wedell Williams No 92 front cover Wedeli-Williams three-views its another winner well worth five bucks Bill asks PO Box Escondido CA 92025 As weve noted pages before draw ings Bill makes wonderful subjects en largement Giant Scale sizes now Bill car ries Peanut Scale drawings Ulises Alvarez Montevideo Uruguay st demand Giant Scale treatment fascinating phone call other day some nice people Terre Haute IN As know dean Scale documenta tion Paul Matt passed away recently some confusion what would happen Pauls Historical Aviation Al bum publications store precise Scale drawings worry theyre good hands friendly people Sunshine House Inc PO Box 2065 Terre Haute IN 47802 Pauls worthy successors plan carrying tradition told theyre planning Continued page 133 Cessna AW subject Bill Effingers latest plan set Although true Giant its small enough flown electric power Classic Glass Grumman Wildcat 7 KIT FEATURES Polyester fiberglass fusalage cowling retractable landing 92 wingspan gear Foam cores wing stab Available major production variations F4F-3 -3A -4 FM-i FM-2 Semi-Kit Fusalage cowling foam cores wing stab canopy retractable landing gear plans 27500 Complete Kit Everything listed semi-kit plus wood parts hardware necessary complete kit including 1/64 plywood sheeting wings $45000 Deluxe Kit Complete kit fusalage preassembled wings stab presheeted control surfaces prebuilt $85000 add $1 500 shipping Information Package $100 /MasterCard accepted Idaho ras add 5% saleatax Mike Zamber Classic Glass PO Box 503 Biackfoat Idaho 83221-0503 785-2309 I1 J reds cowls kits plans Strong lightweight one-piece construction Exact duplicates manufacturers original Also radial cowls wheelpants SendSlOOtor8-pg brochure Orcall 703-890-6017 9am-9 pm EDT phone orders information ASTER Dept MA Rt 1 Box 530 Goodview VA 24095 SMITh ZlfUU85ZZD 7950 Sar Gob e Road codeo CA 53422 455-1717 July1988 39 69716578 6925 AVAILABLE AT AMERICAS FiNEST HOBBY SHOPS 69786528 DISTRIBUTED BY RC Giant Scale/de Vries Continued page 39 new volumean anthology Matts Waco draw ings articles Well leave month Wonderful World Oz Dorothy Toto ever people Century Systems America PO Box 4085 Costa Mesa CA 92626 Oz reference course refers source productsthe great Australian subcontinent Century Systems has some neatest electronic equipment weve seen like NiCd recyclers timers attached gyro sys tems lost-model alarms four-channel fail-safe devices airborne battery-switching black boxes latter item provides dual battery power strongly recommended Giant Scale experts An SASE will probably produce mail box filler house cant wait Century Systems has a toll-free order number 1-800-999-1214 Remember Giant Scale fun RC Electrics/Kopski Continued page 41 makes feel bad because Im loss re spond What mean far know NO good Electric ARFs suitable ba sic flight training purposes RC flight background always suggest poten tially spirited Etude again have seen what would consider basic Electric ARF flight trainer persons NO prior flight experi ence Manufacturers take note good industry folks chooses pursue please good jobone will promote both Elec tric image Its easy tempting throw together some overweight underpowered plastic dog just limps around proves Electrics no good command DONT DO IT subject steadfast Electric rec ommendation first-time other time Electric flight Leisure Amptiquebut its ARF An equally excellent low-cost choice interested Glider configuration Gold berg Electra first truly successful com plete Electric kitthe showed indus try importantly its worth doing own view has modeling indus try large has historically viewed Electric merely remote stepchild worth bothering WRONG Goldberg folks proved Electra What proof Proof others follow lead Just simple idea packaging adequate motor wiring prop such kit design flies well took Success came because its direct overthe-counter answer popular Electric question time What motor what plane Nice work Carl Goldberg Models Inc Its raining write reminds something experienced last spring Id like pass along Saturday March 22 1987 keep logsee August 1984 issue MA then-brand-new Caliph ready fly drizzlingbut didnt matter new plane just couldnt wait get air Besides whats little wetness Neither MonoKote nor would mind Now before go July August 1987 issues MA may just want dig em out look photo details Ca liph featured large air intakes just behind mounted Jomar SC-4 speed control First flights went very well during third flight something funny happening motor control rpm became erratic Fi nally motor came full stayed way till battery depleted make story simple speed control fine layer wa ter itthe result drizzle being ingested air intakes moist circuit board prevented SC-4 working properly returned full nor mal operation blow-dried carefully TOO hot MonoKote gun Sorta reminds some old wives tale about electric ity water mixing something like Larger power systems topic opened up April May t988 issues discus sion promised later Well its later some thoughts breaking 05 barrier Multi-YUK 05 such appropriate way describe electric motor As mentioned before 15 view excellent choice going past sevencell limit because its previously de scribed versatility also because low est cost bigger systems Also mentioned fact have six Cobalt 15s have motorsI also have some performance data gives chance demonstrate performance samplean unusual opportun ity just fun Im going clude comparable data some other iSs well RPM 12 3 4 5 6 7 8 9 data Table 1 presents what call prop power Now fact entitlement some what misnomer What really mean motor power input required turn prop specific listing motor electrical input power motor-volts times motor-amps re quired turn specific prop over chosen range rpm values data taken adjusting applied motor voltage power supply its special high-power unit until rpm reached desired values noting voltage current drain data collected bench over about six-year period same prop used throughout Since time period included wide range shop air conditions temperature humidity some lack control con tained herein Nevertheless should give good representation prop power haves Table 2 different kind table listing gives average voltage current six cobalt iSs power levels table Also included minimum maximum power extremes ie best worst motors As can readily seen performPRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM SPINNERS RetailApprax Pan NaSizePriceWeight TT1500 .. 11/2 S1395058ez 1T175B .. 13/4 1495 . 095ox rT200-B z TI-225-B .. 21/41695150oz TT226-B .. 21/4FAIl1895150oz TT2508 .. 21/2189519002 T1251-B 21/2FAI 2095 170oz TT275B . 2295220ox T1276B /4FAt2495. 20002 rT300B 3269526002 TT-301B 3 FAt2895250oz TT325-B 369534002 TT350B . 3112 4995. 470oz fl3750 5995520oz TT400B 995. 57002 3 Pieces Cone Back Plate Retainer Screw Nole 3 4 Blade Spinners Available Sizes Add 53 00 Per Spinner PROP NUT ADAPTORS U Ot Part NoSize TT140A1/428 IT147A1/428/7mm TT610A 6 x 1 0mm TT710A7 x 1 0mm 1T516A5/1624 tT-518A5/1624/8mm TT-810A8 x 1 0mm TT825AOx 1 25mm TT-375A3/824 TT-125AlOx 1 25mm RetailAppros PriceWeighi 5495061 02 4950 61 02 495063sz 495082 02 495076oz 495 176oz 495I 76 02 4950 75 02 595ll7oz 5951 l5oz 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change milhovt notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 July 1988 133 Table 1 MOTOR INPUT POWER 15-SIZED MOTORS AT VARIED RPM Top Flite 8 x 4 wood prop power shown watts Motor 900064666268616360 iQOGO 599i55Si8589555390 11000liti22itS127ii3itS1211i2i22 i2000156i60iso168152151ISi149i42 i3tO0202220i97i95195 MotorsI through 6 Astro cobalt15srepresentingthe very earliest ones very newest Motors 7 5 Asleo super ferrite ISs Finally motorS isa nine-year-old early version Astro black-back 15 thats J-3 since 1979
Edition: Model Aviation - 1988/07
Page Numbers: 38, 39, 133
ALTHOUGH readers unaware Giant Scale columnists really know other course Model Aviation readers know Dick Phillips writes Giant Steps Model Airplane News publishing business together Both us however know rest compadres like Frank Costello writes Big Bird column Flying Models Bill Skipper does same monthly R/C Report Ken Runestrand Big Beautiful columnist RCM big Al Alman word-processes monthly column Mod el Builder Weve met exchanged pleasantries Scale writers other magazines well Peo ple like Wischers Model Aviation Cliff Tacie Steve Gray pen Model Builder Col Art Johnson RCM great Bill Hannan Mr Peanut himself Model Builder Phil Kent writes great Brit ish magazine RC&ME Radio Control & Model Engineering Johan Ehlers pub lishes South African model magazine find have lot common us modelers first writers second writing tasks however really cut design ing building flying timemore some others also spend considerable amount time answering reader letters its readily apparent drawing board workshop club-field time has scheduled keep up hobby Yet find time read others columns practically month because thats way keep touch another Most us receive press releases same manufacturers try include information interest readers monthly columns reason name-dropping harangue suggest YOU want really up everything thats happening Giant Scale Schoolyard Scale everything between greater variety columns read knowledgeable youll become truth known yours truly indulges himself reading output columnists concerned Free Flight Control Line Scale Theres LOT good useful information gleaned monthly musings friends Theyre great guys Theres something thats bugging yours truly quite Although its tention gore anybodys ox prices Giant Scale kits seem spiralling stratosphere cursory check ads will reveal fall $250 $300 category goodly number being much expensive couple/three years ago clerked local hobby shop cost getting RC air planes ran between $225 $275 tariffs cluded kit engine four-channel radio auxil iary bits pieces get customer airborne scratch Admittedly talking Gi ant Scale Giant kits few far between numbers represent rational point comparison however old bugaboo inflation has added $25 $50 figures noted diminishing pur chasing power dollar has boosted prices great Japanese engines radios current total necessary put 40powered RC model blue still within same ball park compare outfit cost price Giant Scale kit num bers take completely different complexion isnt inconceivable itll cost $1000 just shove throttle forward kitbuilt Giant Admittedly kit hand saves bunch la bor part modeller Prefabrication will get airborne sooner scratch/plans building what cost Scares anyone hobby mentions Giant Scale immediately think big birds pow ered snarling gas burners ARE large RC models engine requirements can satisfied hummers 45 60 cu displacement class Case point Bill Effingers latest Plan N Pattern sets Bills drawn 4-scale Cessna AW 81in wingspan its inch larger IMAA defined minimum Giant yet basic recom mended engine 45 although Bill figures itll fly anything 25 80 twoor four-cycle 904 squares high monoplane wing Bill recommends ideal first Scale model Built light optional four-channel radio setup should winner particularly youre upgrading Giant Scale have appropriate engine hand youre interested contact Bill WE Technical Services 526 Lorell Terrace Atlanta GA 30328 plans patterns $1495 great magazine writers talked about above person Ive never met faceto-face Bill Hannan Weve maintained ex tensive correspondence over years however latest mailing new book Peanuts & Pistachios Vol 3 photo 38 Model Aviation Radio Control Giant Scale John de Vries Colonel USAF Ret 4610 Moffac Ln Colorado Springs CO 80915 PhillIp Kents W Yorkshire England magnificent Henachel 126 spans 77 uses Laser 75 four-stroke power Hes going repaint beautyin winter camouflagel Colonels good friend Jerry Smith has relocated Ackworth GA sends pair photos planes built Scale whiz Slick Larsen Marietta GA left 26-lb quarter-scale Gloater Gladiator roars aloft under 040 power Crafts fuel tank has Cub-type float gauge Slick can check gas opening hatchi Waco UPF-7 R built Dick Barrons plans Pilotless craft uses Q40 power Phil Kent wears Golden Era garb required participants recent rally Olden War den Aerodrome servicing Giant One-third-scale Druine Turbulent built Englands Stephen Greenwood sports Tiger Club markings Sad say craft lost its second outing Its miniature pilot came adrift lodged empennage Farman Moustique drawing Wedell Williams No 92 front cover Wedeli-Williams three-views its another winner well worth five bucks Bill asks PO Box Escondido CA 92025 As weve noted pages before draw ings Bill makes wonderful subjects en largement Giant Scale sizes now Bill car ries Peanut Scale drawings Ulises Alvarez Montevideo Uruguay st demand Giant Scale treatment fascinating phone call other day some nice people Terre Haute IN As know dean Scale documenta tion Paul Matt passed away recently some confusion what would happen Pauls Historical Aviation Al bum publications store precise Scale drawings worry theyre good hands friendly people Sunshine House Inc PO Box 2065 Terre Haute IN 47802 Pauls worthy successors plan carrying tradition told theyre planning Continued page 133 Cessna AW subject Bill Effingers latest plan set Although true Giant its small enough flown electric power Classic Glass Grumman Wildcat 7 KIT FEATURES Polyester fiberglass fusalage cowling retractable landing 92 wingspan gear Foam cores wing stab Available major production variations F4F-3 -3A -4 FM-i FM-2 Semi-Kit Fusalage cowling foam cores wing stab canopy retractable landing gear plans 27500 Complete Kit Everything listed semi-kit plus wood parts hardware necessary complete kit including 1/64 plywood sheeting wings $45000 Deluxe Kit Complete kit fusalage preassembled wings stab presheeted control surfaces prebuilt $85000 add $1 500 shipping Information Package $100 /MasterCard accepted Idaho ras add 5% saleatax Mike Zamber Classic Glass PO Box 503 Biackfoat Idaho 83221-0503 785-2309 I1 J reds cowls kits plans Strong lightweight one-piece construction Exact duplicates manufacturers original Also radial cowls wheelpants SendSlOOtor8-pg brochure Orcall 703-890-6017 9am-9 pm EDT phone orders information ASTER Dept MA Rt 1 Box 530 Goodview VA 24095 SMITh ZlfUU85ZZD 7950 Sar Gob e Road codeo CA 53422 455-1717 July1988 39 69716578 6925 AVAILABLE AT AMERICAS FiNEST HOBBY SHOPS 69786528 DISTRIBUTED BY RC Giant Scale/de Vries Continued page 39 new volumean anthology Matts Waco draw ings articles Well leave month Wonderful World Oz Dorothy Toto ever people Century Systems America PO Box 4085 Costa Mesa CA 92626 Oz reference course refers source productsthe great Australian subcontinent Century Systems has some neatest electronic equipment weve seen like NiCd recyclers timers attached gyro sys tems lost-model alarms four-channel fail-safe devices airborne battery-switching black boxes latter item provides dual battery power strongly recommended Giant Scale experts An SASE will probably produce mail box filler house cant wait Century Systems has a toll-free order number 1-800-999-1214 Remember Giant Scale fun RC Electrics/Kopski Continued page 41 makes feel bad because Im loss re spond What mean far know NO good Electric ARFs suitable ba sic flight training purposes RC flight background always suggest poten tially spirited Etude again have seen what would consider basic Electric ARF flight trainer persons NO prior flight experi ence Manufacturers take note good industry folks chooses pursue please good jobone will promote both Elec tric image Its easy tempting throw together some overweight underpowered plastic dog just limps around proves Electrics no good command DONT DO IT subject steadfast Electric rec ommendation first-time other time Electric flight Leisure Amptiquebut its ARF An equally excellent low-cost choice interested Glider configuration Gold berg Electra first truly successful com plete Electric kitthe showed indus try importantly its worth doing own view has modeling indus try large has historically viewed Electric merely remote stepchild worth bothering WRONG Goldberg folks proved Electra What proof Proof others follow lead Just simple idea packaging adequate motor wiring prop such kit design flies well took Success came because its direct overthe-counter answer popular Electric question time What motor what plane Nice work Carl Goldberg Models Inc Its raining write reminds something experienced last spring Id like pass along Saturday March 22 1987 keep logsee August 1984 issue MA then-brand-new Caliph ready fly drizzlingbut didnt matter new plane just couldnt wait get air Besides whats little wetness Neither MonoKote nor would mind Now before go July August 1987 issues MA may just want dig em out look photo details Ca liph featured large air intakes just behind mounted Jomar SC-4 speed control First flights went very well during third flight something funny happening motor control rpm became erratic Fi nally motor came full stayed way till battery depleted make story simple speed control fine layer wa ter itthe result drizzle being ingested air intakes moist circuit board prevented SC-4 working properly returned full nor mal operation blow-dried carefully TOO hot MonoKote gun Sorta reminds some old wives tale about electric ity water mixing something like Larger power systems topic opened up April May t988 issues discus sion promised later Well its later some thoughts breaking 05 barrier Multi-YUK 05 such appropriate way describe electric motor As mentioned before 15 view excellent choice going past sevencell limit because its previously de scribed versatility also because low est cost bigger systems Also mentioned fact have six Cobalt 15s have motorsI also have some performance data gives chance demonstrate performance samplean unusual opportun ity just fun Im going clude comparable data some other iSs well RPM 12 3 4 5 6 7 8 9 data Table 1 presents what call prop power Now fact entitlement some what misnomer What really mean motor power input required turn prop specific listing motor electrical input power motor-volts times motor-amps re quired turn specific prop over chosen range rpm values data taken adjusting applied motor voltage power supply its special high-power unit until rpm reached desired values noting voltage current drain data collected bench over about six-year period same prop used throughout Since time period included wide range shop air conditions temperature humidity some lack control con tained herein Nevertheless should give good representation prop power haves Table 2 different kind table listing gives average voltage current six cobalt iSs power levels table Also included minimum maximum power extremes ie best worst motors As can readily seen performPRECISION MODEL PRODUCTS Made USA BARSTOCK ALUMINUM SPINNERS RetailApprax Pan NaSizePriceWeight TT1500 .. 11/2 S1395058ez 1T175B .. 13/4 1495 . 095ox rT200-B z TI-225-B .. 21/41695150oz TT226-B .. 21/4FAIl1895150oz TT2508 .. 21/2189519002 T1251-B 21/2FAI 2095 170oz TT275B . 2295220ox T1276B /4FAt2495. 20002 rT300B 3269526002 TT-301B 3 FAt2895250oz TT325-B 369534002 TT350B . 3112 4995. 470oz fl3750 5995520oz TT400B 995. 57002 3 Pieces Cone Back Plate Retainer Screw Nole 3 4 Blade Spinners Available Sizes Add 53 00 Per Spinner PROP NUT ADAPTORS U Ot Part NoSize TT140A1/428 IT147A1/428/7mm TT610A 6 x 1 0mm TT710A7 x 1 0mm 1T516A5/1624 tT-518A5/1624/8mm TT-810A8 x 1 0mm TT825AOx 1 25mm TT-375A3/824 TT-125AlOx 1 25mm RetailAppros PriceWeighi 5495061 02 4950 61 02 495063sz 495082 02 495076oz 495 176oz 495I 76 02 4950 75 02 595ll7oz 5951 l5oz 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change milhovt notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 July 1988 133 Table 1 MOTOR INPUT POWER 15-SIZED MOTORS AT VARIED RPM Top Flite 8 x 4 wood prop power shown watts Motor 900064666268616360 iQOGO 599i55Si8589555390 11000liti22itS127ii3itS1211i2i22 i2000156i60iso168152151ISi149i42 i3tO0202220i97i95195 MotorsI through 6 Astro cobalt15srepresentingthe very earliest ones very newest Motors 7 5 Asleo super ferrite ISs Finally motorS isa nine-year-old early version Astro black-back 15 thats J-3 since 1979