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Electric Convers

Author: R. Smithheisler


Edition: Model Aviation - 1997/05
Page Numbers: 16, 17, 19, 20, 23, 26

NO OCR TEXT NO OCR TEXT PA-12s tail surfaces show light simple construction PA-12 wing struts shown modified diagonal ribs downsized weight savings stock J-3 kit match struts full-scale aircraft wing area 1000-1400 square inches gross weight 12-16 pounds Sig catalog notes J-3 105-inch wingspan has 1600 square inches wing area estimated finished weight 1416 pounds looked Sport 90 good match better idea 1-3s actual flight performance estimated watts per pound might have used formula has worked very well 25- 40-size Electric models took number cells used 90 motor 32 36 multiplied nominal cell voltage 11 multiplied number estimated amps would drawn 30 35 32 cells 32 x 11 x 30 would have 1056 total watts input power 36 cells 36 x 11 x 35 would have 1386 total input watts Sigs highest weight estimate 16 pounds Cub would give either 66 86 watts per pound depending number cells used Electric modelers use guideline 50 watts input power per pound ensure lightly-loaded airplane will take off fly Increasing 60 70 watts allows easy Sport aerobatics such loops rolls stall turns Anything 70-100 watts might allow highperformance-type maneuvers such outside loops knife-edges vertical rolls maneuvers dependent type aircraft flown Using input power does allow various efficiency factors hut does give relative prediction performance has proven work well Few structural changes needed convert Sig quarter-scale 1-3 Electric no vibration associated motors able use thin medium cyanoacrylate CyA glue construction Since epoxy very heavy limited critical areas three forward-fuselage nose mounting joints wing strut assemblies 5/i2 steel cabin wire installations tail surfaces already fairly light downsized diagonal ribs / x 3/ /16 x 3/ also changed rear outline PA- 12 rudder curve unlike Cubs would match full-scale rudder used duplicate parts horizontal elevatorthey matched perfectly easy make 1-3s wing built changes center section PA-12s wing increased 2 inches match full-size airplanes wing 11 inches wider Cubs also used /32 sheet balsa recreate distinctive humpback center section Except widening PA- 12 fuselage both fuselages built modified same way basic stick framework 5A6 square balsa weighed piece replaced heavy side also replaced 1/ Lite Ply forward-fuselage sheeting /s sheet balsa Both firewalls built per Sig instructions except addition large cooling holes Without batteries speed controller other electrical components could overheat become severely damaged also did install clear-plastic window right side fuselage Without window cooling air passes through fuselage radio system can easily accessed having remove wing 1-3 kit cowling consisted six plastic pieces assembled medium CyA per instructions Sig recommends applying fiberglass cloth epoxy entire inside surface finished assembly decided against since no vibration think saved three four ounces model weight Cub its third year flying cowl shows no signs cracking PA-12 cowling purchased May1997 19 new wing center section constructed order match PA-12 fuselage Vince Miller Designs high-quality fiberglass needed very little preparation model also scale openings front great getting cooling air through fuselage J-3 wing struts built per Sig manual struts PA-12 modified match ones full-scale aircraft two vertical jury struts attached center horizontal brace replaced round brass vertical piece Sig kit /s sheet aluminum bent plate made longer vertical brass pieces connect center plate Although Hayes AL6O nylon engine mounts normally used 60 four-stroke glow engines used both models installed two aircraft-quality hose clamps half width weight normal hardware store clamps fasten motor supportit simple quick remove never needs adjustment Since hoping enter J-3 AMA Scale contests installed scalelooking wheelsspecifically model slightly heavy 12 ounces look though real thing used new Du-Bro Feather Lite wheels PA-12 weigh seven ounces per pair fit inside plastic wheel pants Super Cruiser no problems chose 21st Century Fabric Coverite both models iron-on covering prepainted polyester does require additional sealants top-coating its real timesaver compared traditional method painting brushed coat 21st Century Balsarite models wooden framework though required help keep Fabric tacked down its pulled really tight chose 21st Centurys Cub Yellow J-3 Dark Red PA- 12 both models black trim used 21st Century Filma low-heat iron-on covering can easily applied atop fabric Radio gear installation both models similar large glow-powered models began purchasing Futaba 6VA Skysport FM system good quality six-channel system valuable mixing capabilities J-3 PA-12 have included Rl27DF receiver mounted Velcro inside left fuselage did wrap receiver other radio components protective foamits necessary vibration fuel problems associated glow engines mounted standard S148 servos wing panel aileron controls included Futaba 500 mAh receiver battery pack replaced 900 mAh 20 Model Aviation 2 firewall conversion showing motor mounting cooling air inletsthey cool battery speed controller etc J-3 firewall conversion showing motor mounting cooling air inlet holesprevents overheating electrical parts PA-12 fuselage structure shown modified Sig J-3 kitbasic stick framework 5A6 square balsa pack SR Batteriesit has virtually same weight 500 mAh pack almost twice capacity rudder elevator controls put aside standard S148 servos replaced Futaba S9202 coreless servos S9202s almost identical weight 5148s can deliver 69 ounces torque instead 42 throttle control both airplanes installed AstroFlight high-rate electronic speed controllers J-3 has model 207 PA-12 has new 204 controllers will handle up 36 cells 50 amps As receiver both have mounted Velcro fuselage sides Two other electrical items installed unique Electric model first main wiring harness system 13-gauge wiring basically used connect motor battery speed controller charging jack motor As other Electric models installed two additional safety items harnessa master on/off switch 40 amp automotive fuse second item rechargeable nickel cadmium Ni-Cd motor battery pack both models started out Sanyo SCRC 1700 mAb cells arranged six- seven-cell packs wired together series using Sermos connectors achieve 32 cells J-3 35 cells PA-12 packs easily secured Velcro bottom fuselages benefit using separate packs instead 32 35 cells hardwired together ease could rearrangeda big plus Electrics balancing model model electronically weighed before first test flights Cub totaled 17 pounds PA-12 tipped scale 19 pounds 2 ounces estimated Cub would have wing loading 245 ounces per square foot 62 watts power per pound airplane Super Cruiser would have comfortable 27-ounce wing loading robust 68 watts per pound numbers New twist-on head precision pin aligns piston sleeve eliminates siripped head bolts provides head torque reduces head leaks increases power increases performance reduces engine wear increases engine life IOU 1ordDe68no 4012- 40 Minew/mufller 4075- 40 ABC Sport Manne 5100-67 ii icc Inboard 5101 -67i11cc Outboard 5350- 52133cc Inboard 5375-82 133ccOuIboard 8702-4575cc Outboard 8907 21 35cc Outboard 8916- 21 i3scc Inboard 9181- 45 i7scci Inboard 9575-10 i164cci Outboard New 97 engineers K&B manufacturing come Three ingenious improvements have exciusivefy developed new K&B 61 ABC engine new twist head greatiy improves engine performance reduces engine wear whiie redesigned porling increases engine power Also new tuned muffier design actualiy acts iike tuned pipe increasing horsepower whiie making engine run quieter over 50 years K&B Manufacturing has leader quality us Made hobby products continues tradition ali new K&B 61 ABC too r. ucled Fan PN DE5CRIPI1ON 4011 -40R/CFrert8olorw/Muffinr 4850-488ICA8cw/TunedMuloer 5299 82 RIG Ducled Fan Heat Sink Head 5303 82 8/C Oucled Fan 5602-20R/CSpnrtrler 5688-28 R/G Spatrter 5802-66 P/C Spertster 5902- A5 8/C Sporlster 1N*WS S 65 Sporlster40 9/C PNDHscRIP1SON 6858-61 R/CABCw/Tuned Muffler 6550-61 P1Gw/Muffler 8918- 35cc Ducted Fan 9101- 75cc Ouzted Fan 955- 102R/CREAerow/Muffier 9549- 102 8/C Ducted Heal Sink Headi 9550- l02RICDectedFcer S204523579/ 5204533593 2100 College Dr Lake Havasu City Arizona 86403 n-ndI k&b@her COrn Repairs Updates Custom Modifications Frequency Changes 6 Send Legal sized SAF 1997 Meter conversions ACE Airtronics Aristo-craft Cirrus EKCatalog containing lists RIC maintenance hints Futaba Hitec Heathkit Hobby Shack JR Kraft KGL KSE KlineDiscover MCard VISA COD KoPropo Pro-Line RCD Tower Hobbies World Engines & othersUPS USMAIL FED EX etc Calibrated Equipment Quick Turnaround Walk-in daily service 800 am-500 pmSend E-Mail PTWaters@junocom May1997 23 RIC SERVICE AT ITS BEST Sales Service Anything Radio Controlled KMI 7420 Seven Mile Rd Northville Michigan 48167 Ph 810-486-4800 Fax 810-486-1603 maitt*4er HANDY jig-built sail plane manufactured Czech Republic exacting standards HANDY covered *cote 2 colors As light thermal conditions flying small slopes San name suggests excellent hand launch glider responds Marcos Wingspan 150cm 59 profile Selig302l weight radio 75-8 oz Full up wing loading will considerably less 6oz/ft2 HANDY also available electric version ready mount SPEED-400 motor 6x3 fold ing prop 7-cell pack get 3 4 climbs charge Price HANDY HANDY-E $118 also offer powerplant HANDY-E ACT-i solid-state Piezo Gyro compatible Futaba RCD JR radios single-unit ACT-i manufactured Germany now well over 2000 gyros flying ACT-i uses microprocessor calibrate piezo element very precisely calcu lates corrections required tail rotor servo digital design seems have solved drift problems found earlier analog gyro sys tems ACT-i very accurate lightning fast Weight 11 oz Current consumption 35 mA thus does require heavyduty airborne battery new price $13995 Also available Heavy Duty HD version 07 oz super-lightweight version electric helos flying ACT-i helicopters 40 size airplane ailerons should see stable airplane became sudden pix TRIFFIK 70 cm 275 span SPEED-400 pylon racer manufactured glass fiber carbon fiber epoxy motor 7-cell pack help transform little beauty competitive racer experienced pilot Graupner manufactures carbon-rein forced 5x5 CAM prop spinner winning combination carry plane prop/motor combinations tune motor max rpm efficiency TRIFFIK $15800 must see planes excellent workmanship plane individually airbrushed exciting paint schemes Finish very very smooth minimum resistance drag mum airspeed Wing profile MH43 RIC-Direct pleased bring famous Schulze Chameleon chargers smart micro-processor charges need no setup clever enough out the number cells pack optimum fast charge rate varies during charge cycle since micro-processor polls bat tery regular time intervals always calculating best safe charge rate Switchoff automatic charger will revert trickle can program num ber charge/discharge cycles condition charge almost battery pack charge algorithms good NiCads NiMH packs will charge lead-acid flight box battery is6-430 charger automatically handles flight packs up 30 cells can simul taneously charge receiver battery has 2-line LCD display sells $340 isl8-936 can charge 3 batteries same rime Maximum pack size 36 cells 1518 real time high-resolution graphics LCD display RS-232 interface can read back battery pack performance display color graphic form computer Software Windows" includ ed Price isl8 $865 nothing else close available industry Schulze Chameleon chargers have proven worth may contests used top electric flyers world wide power package supply TRIFFIK other SPEED-400 pylon racers consists broken-in dynamically tuned SPEED-400 motor use own test bench capacitors foi brush arc suppression two 25 mm mounting screws Graupner CAM 5x5 prop precision read expensive spinner Schulze f21-l7bes motor speed controller soft start BEC brake controller will withstand high currents used 6V motor 7 cells motor/prop combination sells $3950 controller $4995 See favorite dealer or. order direct RIC Direct 2323 C Tamara Lane San Marcos CA 92069 tel 760 752-9330 look us up httpllwwwrc-directcoin looked good time fly asked Electric power pioneer Bob Benjamin make both models checkout flights Bob superb pilot first modeler install test-fly prototype AstroFlight 90 motor little surprised well J-3 performed its initial flights Bob lifting off half-throttle doing complete ten-maneuver Scale routine third flight inaugural flights PA-12 better geared motor would loop level flight perform smooth Scalelike rolls ease noticeable increase climb rate compared direct-drive J-3 Perhaps remarkable characteristic PA-12s Scalelike soundsuper-deep realistic Bob credit sound AstroFlight gearbox turning large 20 x 10 propeller deletion plastic window right side fuselage entered both models 1996 Evergreen Scale Rally Hubbard Oregon basically qualifying event US Scale Masters Final offers two additional Scale competition categories entered J-3 AMA 511 Sportsman Scale Bob entered PA-12 Team Scale After few nervous shaky flights able settle down take first place very forgiving J-3 Bob continuously put fantastic Scale routines PA-12 placed second Expert Team Scale dont doubt Electric power large Scale models will continue grow advantages never having clean messy glow fuel highly-detailed surface super-reliable starting characteristics great use Electric power next dream Scale model fly cleanly quietly y Smithhisler 1703 105th Ave Ct E Edgewood WA 98372 Safe EasyRC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing pattems ly landing plane Leaming shout Safety Cost $995 Building Flying RC Sailptanes Electric Gliders explores intricacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-800-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 RIC Sport Competition Aerobatics comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven again under actual training conditions Chapters include Choosing acrobatic airplanes Radio selection Adjusting precisely trimming airplanes ral aerobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $1395 Also available pocket guide containing reproduction of acrobatic maneuvers Cost $299 Shipping & Handing charge $250 added book purchased 26 Model Aviation

Author: R. Smithheisler


Edition: Model Aviation - 1997/05
Page Numbers: 16, 17, 19, 20, 23, 26

NO OCR TEXT NO OCR TEXT PA-12s tail surfaces show light simple construction PA-12 wing struts shown modified diagonal ribs downsized weight savings stock J-3 kit match struts full-scale aircraft wing area 1000-1400 square inches gross weight 12-16 pounds Sig catalog notes J-3 105-inch wingspan has 1600 square inches wing area estimated finished weight 1416 pounds looked Sport 90 good match better idea 1-3s actual flight performance estimated watts per pound might have used formula has worked very well 25- 40-size Electric models took number cells used 90 motor 32 36 multiplied nominal cell voltage 11 multiplied number estimated amps would drawn 30 35 32 cells 32 x 11 x 30 would have 1056 total watts input power 36 cells 36 x 11 x 35 would have 1386 total input watts Sigs highest weight estimate 16 pounds Cub would give either 66 86 watts per pound depending number cells used Electric modelers use guideline 50 watts input power per pound ensure lightly-loaded airplane will take off fly Increasing 60 70 watts allows easy Sport aerobatics such loops rolls stall turns Anything 70-100 watts might allow highperformance-type maneuvers such outside loops knife-edges vertical rolls maneuvers dependent type aircraft flown Using input power does allow various efficiency factors hut does give relative prediction performance has proven work well Few structural changes needed convert Sig quarter-scale 1-3 Electric no vibration associated motors able use thin medium cyanoacrylate CyA glue construction Since epoxy very heavy limited critical areas three forward-fuselage nose mounting joints wing strut assemblies 5/i2 steel cabin wire installations tail surfaces already fairly light downsized diagonal ribs / x 3/ /16 x 3/ also changed rear outline PA- 12 rudder curve unlike Cubs would match full-scale rudder used duplicate parts horizontal elevatorthey matched perfectly easy make 1-3s wing built changes center section PA-12s wing increased 2 inches match full-size airplanes wing 11 inches wider Cubs also used /32 sheet balsa recreate distinctive humpback center section Except widening PA- 12 fuselage both fuselages built modified same way basic stick framework 5A6 square balsa weighed piece replaced heavy side also replaced 1/ Lite Ply forward-fuselage sheeting /s sheet balsa Both firewalls built per Sig instructions except addition large cooling holes Without batteries speed controller other electrical components could overheat become severely damaged also did install clear-plastic window right side fuselage Without window cooling air passes through fuselage radio system can easily accessed having remove wing 1-3 kit cowling consisted six plastic pieces assembled medium CyA per instructions Sig recommends applying fiberglass cloth epoxy entire inside surface finished assembly decided against since no vibration think saved three four ounces model weight Cub its third year flying cowl shows no signs cracking PA-12 cowling purchased May1997 19 new wing center section constructed order match PA-12 fuselage Vince Miller Designs high-quality fiberglass needed very little preparation model also scale openings front great getting cooling air through fuselage J-3 wing struts built per Sig manual struts PA-12 modified match ones full-scale aircraft two vertical jury struts attached center horizontal brace replaced round brass vertical piece Sig kit /s sheet aluminum bent plate made longer vertical brass pieces connect center plate Although Hayes AL6O nylon engine mounts normally used 60 four-stroke glow engines used both models installed two aircraft-quality hose clamps half width weight normal hardware store clamps fasten motor supportit simple quick remove never needs adjustment Since hoping enter J-3 AMA Scale contests installed scalelooking wheelsspecifically model slightly heavy 12 ounces look though real thing used new Du-Bro Feather Lite wheels PA-12 weigh seven ounces per pair fit inside plastic wheel pants Super Cruiser no problems chose 21st Century Fabric Coverite both models iron-on covering prepainted polyester does require additional sealants top-coating its real timesaver compared traditional method painting brushed coat 21st Century Balsarite models wooden framework though required help keep Fabric tacked down its pulled really tight chose 21st Centurys Cub Yellow J-3 Dark Red PA- 12 both models black trim used 21st Century Filma low-heat iron-on covering can easily applied atop fabric Radio gear installation both models similar large glow-powered models began purchasing Futaba 6VA Skysport FM system good quality six-channel system valuable mixing capabilities J-3 PA-12 have included Rl27DF receiver mounted Velcro inside left fuselage did wrap receiver other radio components protective foamits necessary vibration fuel problems associated glow engines mounted standard S148 servos wing panel aileron controls included Futaba 500 mAh receiver battery pack replaced 900 mAh 20 Model Aviation 2 firewall conversion showing motor mounting cooling air inletsthey cool battery speed controller etc J-3 firewall conversion showing motor mounting cooling air inlet holesprevents overheating electrical parts PA-12 fuselage structure shown modified Sig J-3 kitbasic stick framework 5A6 square balsa pack SR Batteriesit has virtually same weight 500 mAh pack almost twice capacity rudder elevator controls put aside standard S148 servos replaced Futaba S9202 coreless servos S9202s almost identical weight 5148s can deliver 69 ounces torque instead 42 throttle control both airplanes installed AstroFlight high-rate electronic speed controllers J-3 has model 207 PA-12 has new 204 controllers will handle up 36 cells 50 amps As receiver both have mounted Velcro fuselage sides Two other electrical items installed unique Electric model first main wiring harness system 13-gauge wiring basically used connect motor battery speed controller charging jack motor As other Electric models installed two additional safety items harnessa master on/off switch 40 amp automotive fuse second item rechargeable nickel cadmium Ni-Cd motor battery pack both models started out Sanyo SCRC 1700 mAb cells arranged six- seven-cell packs wired together series using Sermos connectors achieve 32 cells J-3 35 cells PA-12 packs easily secured Velcro bottom fuselages benefit using separate packs instead 32 35 cells hardwired together ease could rearrangeda big plus Electrics balancing model model electronically weighed before first test flights Cub totaled 17 pounds PA-12 tipped scale 19 pounds 2 ounces estimated Cub would have wing loading 245 ounces per square foot 62 watts power per pound airplane Super Cruiser would have comfortable 27-ounce wing loading robust 68 watts per pound numbers New twist-on head precision pin aligns piston sleeve eliminates siripped head bolts provides head torque reduces head leaks increases power increases performance reduces engine wear increases engine life IOU 1ordDe68no 4012- 40 Minew/mufller 4075- 40 ABC Sport Manne 5100-67 ii icc Inboard 5101 -67i11cc Outboard 5350- 52133cc Inboard 5375-82 133ccOuIboard 8702-4575cc Outboard 8907 21 35cc Outboard 8916- 21 i3scc Inboard 9181- 45 i7scci Inboard 9575-10 i164cci Outboard New 97 engineers K&B manufacturing come Three ingenious improvements have exciusivefy developed new K&B 61 ABC engine new twist head greatiy improves engine performance reduces engine wear whiie redesigned porling increases engine power Also new tuned muffier design actualiy acts iike tuned pipe increasing horsepower whiie making engine run quieter over 50 years K&B Manufacturing has leader quality us Made hobby products continues tradition ali new K&B 61 ABC too r. ucled Fan PN DE5CRIPI1ON 4011 -40R/CFrert8olorw/Muffinr 4850-488ICA8cw/TunedMuloer 5299 82 RIG Ducled Fan Heat Sink Head 5303 82 8/C Oucled Fan 5602-20R/CSpnrtrler 5688-28 R/G Spatrter 5802-66 P/C Spertster 5902- A5 8/C Sporlster 1N*WS S 65 Sporlster40 9/C PNDHscRIP1SON 6858-61 R/CABCw/Tuned Muffler 6550-61 P1Gw/Muffler 8918- 35cc Ducted Fan 9101- 75cc Ouzted Fan 955- 102R/CREAerow/Muffier 9549- 102 8/C Ducted Heal Sink Headi 9550- l02RICDectedFcer S204523579/ 5204533593 2100 College Dr Lake Havasu City Arizona 86403 n-ndI k&b@her COrn Repairs Updates Custom Modifications Frequency Changes 6 Send Legal sized SAF 1997 Meter conversions ACE Airtronics Aristo-craft Cirrus EKCatalog containing lists RIC maintenance hints Futaba Hitec Heathkit Hobby Shack JR Kraft KGL KSE KlineDiscover MCard VISA COD KoPropo Pro-Line RCD Tower Hobbies World Engines & othersUPS USMAIL FED EX etc Calibrated Equipment Quick Turnaround Walk-in daily service 800 am-500 pmSend E-Mail PTWaters@junocom May1997 23 RIC SERVICE AT ITS BEST Sales Service Anything Radio Controlled KMI 7420 Seven Mile Rd Northville Michigan 48167 Ph 810-486-4800 Fax 810-486-1603 maitt*4er HANDY jig-built sail plane manufactured Czech Republic exacting standards HANDY covered *cote 2 colors As light thermal conditions flying small slopes San name suggests excellent hand launch glider responds Marcos Wingspan 150cm 59 profile Selig302l weight radio 75-8 oz Full up wing loading will considerably less 6oz/ft2 HANDY also available electric version ready mount SPEED-400 motor 6x3 fold ing prop 7-cell pack get 3 4 climbs charge Price HANDY HANDY-E $118 also offer powerplant HANDY-E ACT-i solid-state Piezo Gyro compatible Futaba RCD JR radios single-unit ACT-i manufactured Germany now well over 2000 gyros flying ACT-i uses microprocessor calibrate piezo element very precisely calcu lates corrections required tail rotor servo digital design seems have solved drift problems found earlier analog gyro sys tems ACT-i very accurate lightning fast Weight 11 oz Current consumption 35 mA thus does require heavyduty airborne battery new price $13995 Also available Heavy Duty HD version 07 oz super-lightweight version electric helos flying ACT-i helicopters 40 size airplane ailerons should see stable airplane became sudden pix TRIFFIK 70 cm 275 span SPEED-400 pylon racer manufactured glass fiber carbon fiber epoxy motor 7-cell pack help transform little beauty competitive racer experienced pilot Graupner manufactures carbon-rein forced 5x5 CAM prop spinner winning combination carry plane prop/motor combinations tune motor max rpm efficiency TRIFFIK $15800 must see planes excellent workmanship plane individually airbrushed exciting paint schemes Finish very very smooth minimum resistance drag mum airspeed Wing profile MH43 RIC-Direct pleased bring famous Schulze Chameleon chargers smart micro-processor charges need no setup clever enough out the number cells pack optimum fast charge rate varies during charge cycle since micro-processor polls bat tery regular time intervals always calculating best safe charge rate Switchoff automatic charger will revert trickle can program num ber charge/discharge cycles condition charge almost battery pack charge algorithms good NiCads NiMH packs will charge lead-acid flight box battery is6-430 charger automatically handles flight packs up 30 cells can simul taneously charge receiver battery has 2-line LCD display sells $340 isl8-936 can charge 3 batteries same rime Maximum pack size 36 cells 1518 real time high-resolution graphics LCD display RS-232 interface can read back battery pack performance display color graphic form computer Software Windows" includ ed Price isl8 $865 nothing else close available industry Schulze Chameleon chargers have proven worth may contests used top electric flyers world wide power package supply TRIFFIK other SPEED-400 pylon racers consists broken-in dynamically tuned SPEED-400 motor use own test bench capacitors foi brush arc suppression two 25 mm mounting screws Graupner CAM 5x5 prop precision read expensive spinner Schulze f21-l7bes motor speed controller soft start BEC brake controller will withstand high currents used 6V motor 7 cells motor/prop combination sells $3950 controller $4995 See favorite dealer or. order direct RIC Direct 2323 C Tamara Lane San Marcos CA 92069 tel 760 752-9330 look us up httpllwwwrc-directcoin looked good time fly asked Electric power pioneer Bob Benjamin make both models checkout flights Bob superb pilot first modeler install test-fly prototype AstroFlight 90 motor little surprised well J-3 performed its initial flights Bob lifting off half-throttle doing complete ten-maneuver Scale routine third flight inaugural flights PA-12 better geared motor would loop level flight perform smooth Scalelike rolls ease noticeable increase climb rate compared direct-drive J-3 Perhaps remarkable characteristic PA-12s Scalelike soundsuper-deep realistic Bob credit sound AstroFlight gearbox turning large 20 x 10 propeller deletion plastic window right side fuselage entered both models 1996 Evergreen Scale Rally Hubbard Oregon basically qualifying event US Scale Masters Final offers two additional Scale competition categories entered J-3 AMA 511 Sportsman Scale Bob entered PA-12 Team Scale After few nervous shaky flights able settle down take first place very forgiving J-3 Bob continuously put fantastic Scale routines PA-12 placed second Expert Team Scale dont doubt Electric power large Scale models will continue grow advantages never having clean messy glow fuel highly-detailed surface super-reliable starting characteristics great use Electric power next dream Scale model fly cleanly quietly y Smithhisler 1703 105th Ave Ct E Edgewood WA 98372 Safe EasyRC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing pattems ly landing plane Leaming shout Safety Cost $995 Building Flying RC Sailptanes Electric Gliders explores intricacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-800-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 RIC Sport Competition Aerobatics comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven again under actual training conditions Chapters include Choosing acrobatic airplanes Radio selection Adjusting precisely trimming airplanes ral aerobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $1395 Also available pocket guide containing reproduction of acrobatic maneuvers Cost $299 Shipping & Handing charge $250 added book purchased 26 Model Aviation

Author: R. Smithheisler


Edition: Model Aviation - 1997/05
Page Numbers: 16, 17, 19, 20, 23, 26

NO OCR TEXT NO OCR TEXT PA-12s tail surfaces show light simple construction PA-12 wing struts shown modified diagonal ribs downsized weight savings stock J-3 kit match struts full-scale aircraft wing area 1000-1400 square inches gross weight 12-16 pounds Sig catalog notes J-3 105-inch wingspan has 1600 square inches wing area estimated finished weight 1416 pounds looked Sport 90 good match better idea 1-3s actual flight performance estimated watts per pound might have used formula has worked very well 25- 40-size Electric models took number cells used 90 motor 32 36 multiplied nominal cell voltage 11 multiplied number estimated amps would drawn 30 35 32 cells 32 x 11 x 30 would have 1056 total watts input power 36 cells 36 x 11 x 35 would have 1386 total input watts Sigs highest weight estimate 16 pounds Cub would give either 66 86 watts per pound depending number cells used Electric modelers use guideline 50 watts input power per pound ensure lightly-loaded airplane will take off fly Increasing 60 70 watts allows easy Sport aerobatics such loops rolls stall turns Anything 70-100 watts might allow highperformance-type maneuvers such outside loops knife-edges vertical rolls maneuvers dependent type aircraft flown Using input power does allow various efficiency factors hut does give relative prediction performance has proven work well Few structural changes needed convert Sig quarter-scale 1-3 Electric no vibration associated motors able use thin medium cyanoacrylate CyA glue construction Since epoxy very heavy limited critical areas three forward-fuselage nose mounting joints wing strut assemblies 5/i2 steel cabin wire installations tail surfaces already fairly light downsized diagonal ribs / x 3/ /16 x 3/ also changed rear outline PA- 12 rudder curve unlike Cubs would match full-scale rudder used duplicate parts horizontal elevatorthey matched perfectly easy make 1-3s wing built changes center section PA-12s wing increased 2 inches match full-size airplanes wing 11 inches wider Cubs also used /32 sheet balsa recreate distinctive humpback center section Except widening PA- 12 fuselage both fuselages built modified same way basic stick framework 5A6 square balsa weighed piece replaced heavy side also replaced 1/ Lite Ply forward-fuselage sheeting /s sheet balsa Both firewalls built per Sig instructions except addition large cooling holes Without batteries speed controller other electrical components could overheat become severely damaged also did install clear-plastic window right side fuselage Without window cooling air passes through fuselage radio system can easily accessed having remove wing 1-3 kit cowling consisted six plastic pieces assembled medium CyA per instructions Sig recommends applying fiberglass cloth epoxy entire inside surface finished assembly decided against since no vibration think saved three four ounces model weight Cub its third year flying cowl shows no signs cracking PA-12 cowling purchased May1997 19 new wing center section constructed order match PA-12 fuselage Vince Miller Designs high-quality fiberglass needed very little preparation model also scale openings front great getting cooling air through fuselage J-3 wing struts built per Sig manual struts PA-12 modified match ones full-scale aircraft two vertical jury struts attached center horizontal brace replaced round brass vertical piece Sig kit /s sheet aluminum bent plate made longer vertical brass pieces connect center plate Although Hayes AL6O nylon engine mounts normally used 60 four-stroke glow engines used both models installed two aircraft-quality hose clamps half width weight normal hardware store clamps fasten motor supportit simple quick remove never needs adjustment Since hoping enter J-3 AMA Scale contests installed scalelooking wheelsspecifically model slightly heavy 12 ounces look though real thing used new Du-Bro Feather Lite wheels PA-12 weigh seven ounces per pair fit inside plastic wheel pants Super Cruiser no problems chose 21st Century Fabric Coverite both models iron-on covering prepainted polyester does require additional sealants top-coating its real timesaver compared traditional method painting brushed coat 21st Century Balsarite models wooden framework though required help keep Fabric tacked down its pulled really tight chose 21st Centurys Cub Yellow J-3 Dark Red PA- 12 both models black trim used 21st Century Filma low-heat iron-on covering can easily applied atop fabric Radio gear installation both models similar large glow-powered models began purchasing Futaba 6VA Skysport FM system good quality six-channel system valuable mixing capabilities J-3 PA-12 have included Rl27DF receiver mounted Velcro inside left fuselage did wrap receiver other radio components protective foamits necessary vibration fuel problems associated glow engines mounted standard S148 servos wing panel aileron controls included Futaba 500 mAh receiver battery pack replaced 900 mAh 20 Model Aviation 2 firewall conversion showing motor mounting cooling air inletsthey cool battery speed controller etc J-3 firewall conversion showing motor mounting cooling air inlet holesprevents overheating electrical parts PA-12 fuselage structure shown modified Sig J-3 kitbasic stick framework 5A6 square balsa pack SR Batteriesit has virtually same weight 500 mAh pack almost twice capacity rudder elevator controls put aside standard S148 servos replaced Futaba S9202 coreless servos S9202s almost identical weight 5148s can deliver 69 ounces torque instead 42 throttle control both airplanes installed AstroFlight high-rate electronic speed controllers J-3 has model 207 PA-12 has new 204 controllers will handle up 36 cells 50 amps As receiver both have mounted Velcro fuselage sides Two other electrical items installed unique Electric model first main wiring harness system 13-gauge wiring basically used connect motor battery speed controller charging jack motor As other Electric models installed two additional safety items harnessa master on/off switch 40 amp automotive fuse second item rechargeable nickel cadmium Ni-Cd motor battery pack both models started out Sanyo SCRC 1700 mAb cells arranged six- seven-cell packs wired together series using Sermos connectors achieve 32 cells J-3 35 cells PA-12 packs easily secured Velcro bottom fuselages benefit using separate packs instead 32 35 cells hardwired together ease could rearrangeda big plus Electrics balancing model model electronically weighed before first test flights Cub totaled 17 pounds PA-12 tipped scale 19 pounds 2 ounces estimated Cub would have wing loading 245 ounces per square foot 62 watts power per pound airplane Super Cruiser would have comfortable 27-ounce wing loading robust 68 watts per pound numbers New twist-on head precision pin aligns piston sleeve eliminates siripped head bolts provides head torque reduces head leaks increases power increases performance reduces engine wear increases engine life IOU 1ordDe68no 4012- 40 Minew/mufller 4075- 40 ABC Sport Manne 5100-67 ii icc Inboard 5101 -67i11cc Outboard 5350- 52133cc Inboard 5375-82 133ccOuIboard 8702-4575cc Outboard 8907 21 35cc Outboard 8916- 21 i3scc Inboard 9181- 45 i7scci Inboard 9575-10 i164cci Outboard New 97 engineers K&B manufacturing come Three ingenious improvements have exciusivefy developed new K&B 61 ABC engine new twist head greatiy improves engine performance reduces engine wear whiie redesigned porling increases engine power Also new tuned muffier design actualiy acts iike tuned pipe increasing horsepower whiie making engine run quieter over 50 years K&B Manufacturing has leader quality us Made hobby products continues tradition ali new K&B 61 ABC too r. ucled Fan PN DE5CRIPI1ON 4011 -40R/CFrert8olorw/Muffinr 4850-488ICA8cw/TunedMuloer 5299 82 RIG Ducled Fan Heat Sink Head 5303 82 8/C Oucled Fan 5602-20R/CSpnrtrler 5688-28 R/G Spatrter 5802-66 P/C Spertster 5902- A5 8/C Sporlster 1N*WS S 65 Sporlster40 9/C PNDHscRIP1SON 6858-61 R/CABCw/Tuned Muffler 6550-61 P1Gw/Muffler 8918- 35cc Ducted Fan 9101- 75cc Ouzted Fan 955- 102R/CREAerow/Muffier 9549- 102 8/C Ducted Heal Sink Headi 9550- l02RICDectedFcer S204523579/ 5204533593 2100 College Dr Lake Havasu City Arizona 86403 n-ndI k&b@her COrn Repairs Updates Custom Modifications Frequency Changes 6 Send Legal sized SAF 1997 Meter conversions ACE Airtronics Aristo-craft Cirrus EKCatalog containing lists RIC maintenance hints Futaba Hitec Heathkit Hobby Shack JR Kraft KGL KSE KlineDiscover MCard VISA COD KoPropo Pro-Line RCD Tower Hobbies World Engines & othersUPS USMAIL FED EX etc Calibrated Equipment Quick Turnaround Walk-in daily service 800 am-500 pmSend E-Mail PTWaters@junocom May1997 23 RIC SERVICE AT ITS BEST Sales Service Anything Radio Controlled KMI 7420 Seven Mile Rd Northville Michigan 48167 Ph 810-486-4800 Fax 810-486-1603 maitt*4er HANDY jig-built sail plane manufactured Czech Republic exacting standards HANDY covered *cote 2 colors As light thermal conditions flying small slopes San name suggests excellent hand launch glider responds Marcos Wingspan 150cm 59 profile Selig302l weight radio 75-8 oz Full up wing loading will considerably less 6oz/ft2 HANDY also available electric version ready mount SPEED-400 motor 6x3 fold ing prop 7-cell pack get 3 4 climbs charge Price HANDY HANDY-E $118 also offer powerplant HANDY-E ACT-i solid-state Piezo Gyro compatible Futaba RCD JR radios single-unit ACT-i manufactured Germany now well over 2000 gyros flying ACT-i uses microprocessor calibrate piezo element very precisely calcu lates corrections required tail rotor servo digital design seems have solved drift problems found earlier analog gyro sys tems ACT-i very accurate lightning fast Weight 11 oz Current consumption 35 mA thus does require heavyduty airborne battery new price $13995 Also available Heavy Duty HD version 07 oz super-lightweight version electric helos flying ACT-i helicopters 40 size airplane ailerons should see stable airplane became sudden pix TRIFFIK 70 cm 275 span SPEED-400 pylon racer manufactured glass fiber carbon fiber epoxy motor 7-cell pack help transform little beauty competitive racer experienced pilot Graupner manufactures carbon-rein forced 5x5 CAM prop spinner winning combination carry plane prop/motor combinations tune motor max rpm efficiency TRIFFIK $15800 must see planes excellent workmanship plane individually airbrushed exciting paint schemes Finish very very smooth minimum resistance drag mum airspeed Wing profile MH43 RIC-Direct pleased bring famous Schulze Chameleon chargers smart micro-processor charges need no setup clever enough out the number cells pack optimum fast charge rate varies during charge cycle since micro-processor polls bat tery regular time intervals always calculating best safe charge rate Switchoff automatic charger will revert trickle can program num ber charge/discharge cycles condition charge almost battery pack charge algorithms good NiCads NiMH packs will charge lead-acid flight box battery is6-430 charger automatically handles flight packs up 30 cells can simul taneously charge receiver battery has 2-line LCD display sells $340 isl8-936 can charge 3 batteries same rime Maximum pack size 36 cells 1518 real time high-resolution graphics LCD display RS-232 interface can read back battery pack performance display color graphic form computer Software Windows" includ ed Price isl8 $865 nothing else close available industry Schulze Chameleon chargers have proven worth may contests used top electric flyers world wide power package supply TRIFFIK other SPEED-400 pylon racers consists broken-in dynamically tuned SPEED-400 motor use own test bench capacitors foi brush arc suppression two 25 mm mounting screws Graupner CAM 5x5 prop precision read expensive spinner Schulze f21-l7bes motor speed controller soft start BEC brake controller will withstand high currents used 6V motor 7 cells motor/prop combination sells $3950 controller $4995 See favorite dealer or. order direct RIC Direct 2323 C Tamara Lane San Marcos CA 92069 tel 760 752-9330 look us up httpllwwwrc-directcoin looked good time fly asked Electric power pioneer Bob Benjamin make both models checkout flights Bob superb pilot first modeler install test-fly prototype AstroFlight 90 motor little surprised well J-3 performed its initial flights Bob lifting off half-throttle doing complete ten-maneuver Scale routine third flight inaugural flights PA-12 better geared motor would loop level flight perform smooth Scalelike rolls ease noticeable increase climb rate compared direct-drive J-3 Perhaps remarkable characteristic PA-12s Scalelike soundsuper-deep realistic Bob credit sound AstroFlight gearbox turning large 20 x 10 propeller deletion plastic window right side fuselage entered both models 1996 Evergreen Scale Rally Hubbard Oregon basically qualifying event US Scale Masters Final offers two additional Scale competition categories entered J-3 AMA 511 Sportsman Scale Bob entered PA-12 Team Scale After few nervous shaky flights able settle down take first place very forgiving J-3 Bob continuously put fantastic Scale routines PA-12 placed second Expert Team Scale dont doubt Electric power large Scale models will continue grow advantages never having clean messy glow fuel highly-detailed surface super-reliable starting characteristics great use Electric power next dream Scale model fly cleanly quietly y Smithhisler 1703 105th Ave Ct E Edgewood WA 98372 Safe EasyRC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing pattems ly landing plane Leaming shout Safety Cost $995 Building Flying RC Sailptanes Electric Gliders explores intricacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-800-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 RIC Sport Competition Aerobatics comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven again under actual training conditions Chapters include Choosing acrobatic airplanes Radio selection Adjusting precisely trimming airplanes ral aerobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $1395 Also available pocket guide containing reproduction of acrobatic maneuvers Cost $299 Shipping & Handing charge $250 added book purchased 26 Model Aviation

Author: R. Smithheisler


Edition: Model Aviation - 1997/05
Page Numbers: 16, 17, 19, 20, 23, 26

NO OCR TEXT NO OCR TEXT PA-12s tail surfaces show light simple construction PA-12 wing struts shown modified diagonal ribs downsized weight savings stock J-3 kit match struts full-scale aircraft wing area 1000-1400 square inches gross weight 12-16 pounds Sig catalog notes J-3 105-inch wingspan has 1600 square inches wing area estimated finished weight 1416 pounds looked Sport 90 good match better idea 1-3s actual flight performance estimated watts per pound might have used formula has worked very well 25- 40-size Electric models took number cells used 90 motor 32 36 multiplied nominal cell voltage 11 multiplied number estimated amps would drawn 30 35 32 cells 32 x 11 x 30 would have 1056 total watts input power 36 cells 36 x 11 x 35 would have 1386 total input watts Sigs highest weight estimate 16 pounds Cub would give either 66 86 watts per pound depending number cells used Electric modelers use guideline 50 watts input power per pound ensure lightly-loaded airplane will take off fly Increasing 60 70 watts allows easy Sport aerobatics such loops rolls stall turns Anything 70-100 watts might allow highperformance-type maneuvers such outside loops knife-edges vertical rolls maneuvers dependent type aircraft flown Using input power does allow various efficiency factors hut does give relative prediction performance has proven work well Few structural changes needed convert Sig quarter-scale 1-3 Electric no vibration associated motors able use thin medium cyanoacrylate CyA glue construction Since epoxy very heavy limited critical areas three forward-fuselage nose mounting joints wing strut assemblies 5/i2 steel cabin wire installations tail surfaces already fairly light downsized diagonal ribs / x 3/ /16 x 3/ also changed rear outline PA- 12 rudder curve unlike Cubs would match full-scale rudder used duplicate parts horizontal elevatorthey matched perfectly easy make 1-3s wing built changes center section PA-12s wing increased 2 inches match full-size airplanes wing 11 inches wider Cubs also used /32 sheet balsa recreate distinctive humpback center section Except widening PA- 12 fuselage both fuselages built modified same way basic stick framework 5A6 square balsa weighed piece replaced heavy side also replaced 1/ Lite Ply forward-fuselage sheeting /s sheet balsa Both firewalls built per Sig instructions except addition large cooling holes Without batteries speed controller other electrical components could overheat become severely damaged also did install clear-plastic window right side fuselage Without window cooling air passes through fuselage radio system can easily accessed having remove wing 1-3 kit cowling consisted six plastic pieces assembled medium CyA per instructions Sig recommends applying fiberglass cloth epoxy entire inside surface finished assembly decided against since no vibration think saved three four ounces model weight Cub its third year flying cowl shows no signs cracking PA-12 cowling purchased May1997 19 new wing center section constructed order match PA-12 fuselage Vince Miller Designs high-quality fiberglass needed very little preparation model also scale openings front great getting cooling air through fuselage J-3 wing struts built per Sig manual struts PA-12 modified match ones full-scale aircraft two vertical jury struts attached center horizontal brace replaced round brass vertical piece Sig kit /s sheet aluminum bent plate made longer vertical brass pieces connect center plate Although Hayes AL6O nylon engine mounts normally used 60 four-stroke glow engines used both models installed two aircraft-quality hose clamps half width weight normal hardware store clamps fasten motor supportit simple quick remove never needs adjustment Since hoping enter J-3 AMA Scale contests installed scalelooking wheelsspecifically model slightly heavy 12 ounces look though real thing used new Du-Bro Feather Lite wheels PA-12 weigh seven ounces per pair fit inside plastic wheel pants Super Cruiser no problems chose 21st Century Fabric Coverite both models iron-on covering prepainted polyester does require additional sealants top-coating its real timesaver compared traditional method painting brushed coat 21st Century Balsarite models wooden framework though required help keep Fabric tacked down its pulled really tight chose 21st Centurys Cub Yellow J-3 Dark Red PA- 12 both models black trim used 21st Century Filma low-heat iron-on covering can easily applied atop fabric Radio gear installation both models similar large glow-powered models began purchasing Futaba 6VA Skysport FM system good quality six-channel system valuable mixing capabilities J-3 PA-12 have included Rl27DF receiver mounted Velcro inside left fuselage did wrap receiver other radio components protective foamits necessary vibration fuel problems associated glow engines mounted standard S148 servos wing panel aileron controls included Futaba 500 mAh receiver battery pack replaced 900 mAh 20 Model Aviation 2 firewall conversion showing motor mounting cooling air inletsthey cool battery speed controller etc J-3 firewall conversion showing motor mounting cooling air inlet holesprevents overheating electrical parts PA-12 fuselage structure shown modified Sig J-3 kitbasic stick framework 5A6 square balsa pack SR Batteriesit has virtually same weight 500 mAh pack almost twice capacity rudder elevator controls put aside standard S148 servos replaced Futaba S9202 coreless servos S9202s almost identical weight 5148s can deliver 69 ounces torque instead 42 throttle control both airplanes installed AstroFlight high-rate electronic speed controllers J-3 has model 207 PA-12 has new 204 controllers will handle up 36 cells 50 amps As receiver both have mounted Velcro fuselage sides Two other electrical items installed unique Electric model first main wiring harness system 13-gauge wiring basically used connect motor battery speed controller charging jack motor As other Electric models installed two additional safety items harnessa master on/off switch 40 amp automotive fuse second item rechargeable nickel cadmium Ni-Cd motor battery pack both models started out Sanyo SCRC 1700 mAb cells arranged six- seven-cell packs wired together series using Sermos connectors achieve 32 cells J-3 35 cells PA-12 packs easily secured Velcro bottom fuselages benefit using separate packs instead 32 35 cells hardwired together ease could rearrangeda big plus Electrics balancing model model electronically weighed before first test flights Cub totaled 17 pounds PA-12 tipped scale 19 pounds 2 ounces estimated Cub would have wing loading 245 ounces per square foot 62 watts power per pound airplane Super Cruiser would have comfortable 27-ounce wing loading robust 68 watts per pound numbers New twist-on head precision pin aligns piston sleeve eliminates siripped head bolts provides head torque reduces head leaks increases power increases performance reduces engine wear increases engine life IOU 1ordDe68no 4012- 40 Minew/mufller 4075- 40 ABC Sport Manne 5100-67 ii icc Inboard 5101 -67i11cc Outboard 5350- 52133cc Inboard 5375-82 133ccOuIboard 8702-4575cc Outboard 8907 21 35cc Outboard 8916- 21 i3scc Inboard 9181- 45 i7scci Inboard 9575-10 i164cci Outboard New 97 engineers K&B manufacturing come Three ingenious improvements have exciusivefy developed new K&B 61 ABC engine new twist head greatiy improves engine performance reduces engine wear whiie redesigned porling increases engine power Also new tuned muffier design actualiy acts iike tuned pipe increasing horsepower whiie making engine run quieter over 50 years K&B Manufacturing has leader quality us Made hobby products continues tradition ali new K&B 61 ABC too r. ucled Fan PN DE5CRIPI1ON 4011 -40R/CFrert8olorw/Muffinr 4850-488ICA8cw/TunedMuloer 5299 82 RIG Ducled Fan Heat Sink Head 5303 82 8/C Oucled Fan 5602-20R/CSpnrtrler 5688-28 R/G Spatrter 5802-66 P/C Spertster 5902- A5 8/C Sporlster 1N*WS S 65 Sporlster40 9/C PNDHscRIP1SON 6858-61 R/CABCw/Tuned Muffler 6550-61 P1Gw/Muffler 8918- 35cc Ducted Fan 9101- 75cc Ouzted Fan 955- 102R/CREAerow/Muffier 9549- 102 8/C Ducted Heal Sink Headi 9550- l02RICDectedFcer S204523579/ 5204533593 2100 College Dr Lake Havasu City Arizona 86403 n-ndI k&b@her COrn Repairs Updates Custom Modifications Frequency Changes 6 Send Legal sized SAF 1997 Meter conversions ACE Airtronics Aristo-craft Cirrus EKCatalog containing lists RIC maintenance hints Futaba Hitec Heathkit Hobby Shack JR Kraft KGL KSE KlineDiscover MCard VISA COD KoPropo Pro-Line RCD Tower Hobbies World Engines & othersUPS USMAIL FED EX etc Calibrated Equipment Quick Turnaround Walk-in daily service 800 am-500 pmSend E-Mail PTWaters@junocom May1997 23 RIC SERVICE AT ITS BEST Sales Service Anything Radio Controlled KMI 7420 Seven Mile Rd Northville Michigan 48167 Ph 810-486-4800 Fax 810-486-1603 maitt*4er HANDY jig-built sail plane manufactured Czech Republic exacting standards HANDY covered *cote 2 colors As light thermal conditions flying small slopes San name suggests excellent hand launch glider responds Marcos Wingspan 150cm 59 profile Selig302l weight radio 75-8 oz Full up wing loading will considerably less 6oz/ft2 HANDY also available electric version ready mount SPEED-400 motor 6x3 fold ing prop 7-cell pack get 3 4 climbs charge Price HANDY HANDY-E $118 also offer powerplant HANDY-E ACT-i solid-state Piezo Gyro compatible Futaba RCD JR radios single-unit ACT-i manufactured Germany now well over 2000 gyros flying ACT-i uses microprocessor calibrate piezo element very precisely calcu lates corrections required tail rotor servo digital design seems have solved drift problems found earlier analog gyro sys tems ACT-i very accurate lightning fast Weight 11 oz Current consumption 35 mA thus does require heavyduty airborne battery new price $13995 Also available Heavy Duty HD version 07 oz super-lightweight version electric helos flying ACT-i helicopters 40 size airplane ailerons should see stable airplane became sudden pix TRIFFIK 70 cm 275 span SPEED-400 pylon racer manufactured glass fiber carbon fiber epoxy motor 7-cell pack help transform little beauty competitive racer experienced pilot Graupner manufactures carbon-rein forced 5x5 CAM prop spinner winning combination carry plane prop/motor combinations tune motor max rpm efficiency TRIFFIK $15800 must see planes excellent workmanship plane individually airbrushed exciting paint schemes Finish very very smooth minimum resistance drag mum airspeed Wing profile MH43 RIC-Direct pleased bring famous Schulze Chameleon chargers smart micro-processor charges need no setup clever enough out the number cells pack optimum fast charge rate varies during charge cycle since micro-processor polls bat tery regular time intervals always calculating best safe charge rate Switchoff automatic charger will revert trickle can program num ber charge/discharge cycles condition charge almost battery pack charge algorithms good NiCads NiMH packs will charge lead-acid flight box battery is6-430 charger automatically handles flight packs up 30 cells can simul taneously charge receiver battery has 2-line LCD display sells $340 isl8-936 can charge 3 batteries same rime Maximum pack size 36 cells 1518 real time high-resolution graphics LCD display RS-232 interface can read back battery pack performance display color graphic form computer Software Windows" includ ed Price isl8 $865 nothing else close available industry Schulze Chameleon chargers have proven worth may contests used top electric flyers world wide power package supply TRIFFIK other SPEED-400 pylon racers consists broken-in dynamically tuned SPEED-400 motor use own test bench capacitors foi brush arc suppression two 25 mm mounting screws Graupner CAM 5x5 prop precision read expensive spinner Schulze f21-l7bes motor speed controller soft start BEC brake controller will withstand high currents used 6V motor 7 cells motor/prop combination sells $3950 controller $4995 See favorite dealer or. order direct RIC Direct 2323 C Tamara Lane San Marcos CA 92069 tel 760 752-9330 look us up httpllwwwrc-directcoin looked good time fly asked Electric power pioneer Bob Benjamin make both models checkout flights Bob superb pilot first modeler install test-fly prototype AstroFlight 90 motor little surprised well J-3 performed its initial flights Bob lifting off half-throttle doing complete ten-maneuver Scale routine third flight inaugural flights PA-12 better geared motor would loop level flight perform smooth Scalelike rolls ease noticeable increase climb rate compared direct-drive J-3 Perhaps remarkable characteristic PA-12s Scalelike soundsuper-deep realistic Bob credit sound AstroFlight gearbox turning large 20 x 10 propeller deletion plastic window right side fuselage entered both models 1996 Evergreen Scale Rally Hubbard Oregon basically qualifying event US Scale Masters Final offers two additional Scale competition categories entered J-3 AMA 511 Sportsman Scale Bob entered PA-12 Team Scale After few nervous shaky flights able settle down take first place very forgiving J-3 Bob continuously put fantastic Scale routines PA-12 placed second Expert Team Scale dont doubt Electric power large Scale models will continue grow advantages never having clean messy glow fuel highly-detailed surface super-reliable starting characteristics great use Electric power next dream Scale model fly cleanly quietly y Smithhisler 1703 105th Ave Ct E Edgewood WA 98372 Safe EasyRC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing pattems ly landing plane Leaming shout Safety Cost $995 Building Flying RC Sailptanes Electric Gliders explores intricacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-800-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 RIC Sport Competition Aerobatics comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven again under actual training conditions Chapters include Choosing acrobatic airplanes Radio selection Adjusting precisely trimming airplanes ral aerobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $1395 Also available pocket guide containing reproduction of acrobatic maneuvers Cost $299 Shipping & Handing charge $250 added book purchased 26 Model Aviation

Author: R. Smithheisler


Edition: Model Aviation - 1997/05
Page Numbers: 16, 17, 19, 20, 23, 26

NO OCR TEXT NO OCR TEXT PA-12s tail surfaces show light simple construction PA-12 wing struts shown modified diagonal ribs downsized weight savings stock J-3 kit match struts full-scale aircraft wing area 1000-1400 square inches gross weight 12-16 pounds Sig catalog notes J-3 105-inch wingspan has 1600 square inches wing area estimated finished weight 1416 pounds looked Sport 90 good match better idea 1-3s actual flight performance estimated watts per pound might have used formula has worked very well 25- 40-size Electric models took number cells used 90 motor 32 36 multiplied nominal cell voltage 11 multiplied number estimated amps would drawn 30 35 32 cells 32 x 11 x 30 would have 1056 total watts input power 36 cells 36 x 11 x 35 would have 1386 total input watts Sigs highest weight estimate 16 pounds Cub would give either 66 86 watts per pound depending number cells used Electric modelers use guideline 50 watts input power per pound ensure lightly-loaded airplane will take off fly Increasing 60 70 watts allows easy Sport aerobatics such loops rolls stall turns Anything 70-100 watts might allow highperformance-type maneuvers such outside loops knife-edges vertical rolls maneuvers dependent type aircraft flown Using input power does allow various efficiency factors hut does give relative prediction performance has proven work well Few structural changes needed convert Sig quarter-scale 1-3 Electric no vibration associated motors able use thin medium cyanoacrylate CyA glue construction Since epoxy very heavy limited critical areas three forward-fuselage nose mounting joints wing strut assemblies 5/i2 steel cabin wire installations tail surfaces already fairly light downsized diagonal ribs / x 3/ /16 x 3/ also changed rear outline PA- 12 rudder curve unlike Cubs would match full-scale rudder used duplicate parts horizontal elevatorthey matched perfectly easy make 1-3s wing built changes center section PA-12s wing increased 2 inches match full-size airplanes wing 11 inches wider Cubs also used /32 sheet balsa recreate distinctive humpback center section Except widening PA- 12 fuselage both fuselages built modified same way basic stick framework 5A6 square balsa weighed piece replaced heavy side also replaced 1/ Lite Ply forward-fuselage sheeting /s sheet balsa Both firewalls built per Sig instructions except addition large cooling holes Without batteries speed controller other electrical components could overheat become severely damaged also did install clear-plastic window right side fuselage Without window cooling air passes through fuselage radio system can easily accessed having remove wing 1-3 kit cowling consisted six plastic pieces assembled medium CyA per instructions Sig recommends applying fiberglass cloth epoxy entire inside surface finished assembly decided against since no vibration think saved three four ounces model weight Cub its third year flying cowl shows no signs cracking PA-12 cowling purchased May1997 19 new wing center section constructed order match PA-12 fuselage Vince Miller Designs high-quality fiberglass needed very little preparation model also scale openings front great getting cooling air through fuselage J-3 wing struts built per Sig manual struts PA-12 modified match ones full-scale aircraft two vertical jury struts attached center horizontal brace replaced round brass vertical piece Sig kit /s sheet aluminum bent plate made longer vertical brass pieces connect center plate Although Hayes AL6O nylon engine mounts normally used 60 four-stroke glow engines used both models installed two aircraft-quality hose clamps half width weight normal hardware store clamps fasten motor supportit simple quick remove never needs adjustment Since hoping enter J-3 AMA Scale contests installed scalelooking wheelsspecifically model slightly heavy 12 ounces look though real thing used new Du-Bro Feather Lite wheels PA-12 weigh seven ounces per pair fit inside plastic wheel pants Super Cruiser no problems chose 21st Century Fabric Coverite both models iron-on covering prepainted polyester does require additional sealants top-coating its real timesaver compared traditional method painting brushed coat 21st Century Balsarite models wooden framework though required help keep Fabric tacked down its pulled really tight chose 21st Centurys Cub Yellow J-3 Dark Red PA- 12 both models black trim used 21st Century Filma low-heat iron-on covering can easily applied atop fabric Radio gear installation both models similar large glow-powered models began purchasing Futaba 6VA Skysport FM system good quality six-channel system valuable mixing capabilities J-3 PA-12 have included Rl27DF receiver mounted Velcro inside left fuselage did wrap receiver other radio components protective foamits necessary vibration fuel problems associated glow engines mounted standard S148 servos wing panel aileron controls included Futaba 500 mAh receiver battery pack replaced 900 mAh 20 Model Aviation 2 firewall conversion showing motor mounting cooling air inletsthey cool battery speed controller etc J-3 firewall conversion showing motor mounting cooling air inlet holesprevents overheating electrical parts PA-12 fuselage structure shown modified Sig J-3 kitbasic stick framework 5A6 square balsa pack SR Batteriesit has virtually same weight 500 mAh pack almost twice capacity rudder elevator controls put aside standard S148 servos replaced Futaba S9202 coreless servos S9202s almost identical weight 5148s can deliver 69 ounces torque instead 42 throttle control both airplanes installed AstroFlight high-rate electronic speed controllers J-3 has model 207 PA-12 has new 204 controllers will handle up 36 cells 50 amps As receiver both have mounted Velcro fuselage sides Two other electrical items installed unique Electric model first main wiring harness system 13-gauge wiring basically used connect motor battery speed controller charging jack motor As other Electric models installed two additional safety items harnessa master on/off switch 40 amp automotive fuse second item rechargeable nickel cadmium Ni-Cd motor battery pack both models started out Sanyo SCRC 1700 mAb cells arranged six- seven-cell packs wired together series using Sermos connectors achieve 32 cells J-3 35 cells PA-12 packs easily secured Velcro bottom fuselages benefit using separate packs instead 32 35 cells hardwired together ease could rearrangeda big plus Electrics balancing model model electronically weighed before first test flights Cub totaled 17 pounds PA-12 tipped scale 19 pounds 2 ounces estimated Cub would have wing loading 245 ounces per square foot 62 watts power per pound airplane Super Cruiser would have comfortable 27-ounce wing loading robust 68 watts per pound numbers New twist-on head precision pin aligns piston sleeve eliminates siripped head bolts provides head torque reduces head leaks increases power increases performance reduces engine wear increases engine life IOU 1ordDe68no 4012- 40 Minew/mufller 4075- 40 ABC Sport Manne 5100-67 ii icc Inboard 5101 -67i11cc Outboard 5350- 52133cc Inboard 5375-82 133ccOuIboard 8702-4575cc Outboard 8907 21 35cc Outboard 8916- 21 i3scc Inboard 9181- 45 i7scci Inboard 9575-10 i164cci Outboard New 97 engineers K&B manufacturing come Three ingenious improvements have exciusivefy developed new K&B 61 ABC engine new twist head greatiy improves engine performance reduces engine wear whiie redesigned porling increases engine power Also new tuned muffier design actualiy acts iike tuned pipe increasing horsepower whiie making engine run quieter over 50 years K&B Manufacturing has leader quality us Made hobby products continues tradition ali new K&B 61 ABC too r. ucled Fan PN DE5CRIPI1ON 4011 -40R/CFrert8olorw/Muffinr 4850-488ICA8cw/TunedMuloer 5299 82 RIG Ducled Fan Heat Sink Head 5303 82 8/C Oucled Fan 5602-20R/CSpnrtrler 5688-28 R/G Spatrter 5802-66 P/C Spertster 5902- A5 8/C Sporlster 1N*WS S 65 Sporlster40 9/C PNDHscRIP1SON 6858-61 R/CABCw/Tuned Muffler 6550-61 P1Gw/Muffler 8918- 35cc Ducted Fan 9101- 75cc Ouzted Fan 955- 102R/CREAerow/Muffier 9549- 102 8/C Ducted Heal Sink Headi 9550- l02RICDectedFcer S204523579/ 5204533593 2100 College Dr Lake Havasu City Arizona 86403 n-ndI k&b@her COrn Repairs Updates Custom Modifications Frequency Changes 6 Send Legal sized SAF 1997 Meter conversions ACE Airtronics Aristo-craft Cirrus EKCatalog containing lists RIC maintenance hints Futaba Hitec Heathkit Hobby Shack JR Kraft KGL KSE KlineDiscover MCard VISA COD KoPropo Pro-Line RCD Tower Hobbies World Engines & othersUPS USMAIL FED EX etc Calibrated Equipment Quick Turnaround Walk-in daily service 800 am-500 pmSend E-Mail PTWaters@junocom May1997 23 RIC SERVICE AT ITS BEST Sales Service Anything Radio Controlled KMI 7420 Seven Mile Rd Northville Michigan 48167 Ph 810-486-4800 Fax 810-486-1603 maitt*4er HANDY jig-built sail plane manufactured Czech Republic exacting standards HANDY covered *cote 2 colors As light thermal conditions flying small slopes San name suggests excellent hand launch glider responds Marcos Wingspan 150cm 59 profile Selig302l weight radio 75-8 oz Full up wing loading will considerably less 6oz/ft2 HANDY also available electric version ready mount SPEED-400 motor 6x3 fold ing prop 7-cell pack get 3 4 climbs charge Price HANDY HANDY-E $118 also offer powerplant HANDY-E ACT-i solid-state Piezo Gyro compatible Futaba RCD JR radios single-unit ACT-i manufactured Germany now well over 2000 gyros flying ACT-i uses microprocessor calibrate piezo element very precisely calcu lates corrections required tail rotor servo digital design seems have solved drift problems found earlier analog gyro sys tems ACT-i very accurate lightning fast Weight 11 oz Current consumption 35 mA thus does require heavyduty airborne battery new price $13995 Also available Heavy Duty HD version 07 oz super-lightweight version electric helos flying ACT-i helicopters 40 size airplane ailerons should see stable airplane became sudden pix TRIFFIK 70 cm 275 span SPEED-400 pylon racer manufactured glass fiber carbon fiber epoxy motor 7-cell pack help transform little beauty competitive racer experienced pilot Graupner manufactures carbon-rein forced 5x5 CAM prop spinner winning combination carry plane prop/motor combinations tune motor max rpm efficiency TRIFFIK $15800 must see planes excellent workmanship plane individually airbrushed exciting paint schemes Finish very very smooth minimum resistance drag mum airspeed Wing profile MH43 RIC-Direct pleased bring famous Schulze Chameleon chargers smart micro-processor charges need no setup clever enough out the number cells pack optimum fast charge rate varies during charge cycle since micro-processor polls bat tery regular time intervals always calculating best safe charge rate Switchoff automatic charger will revert trickle can program num ber charge/discharge cycles condition charge almost battery pack charge algorithms good NiCads NiMH packs will charge lead-acid flight box battery is6-430 charger automatically handles flight packs up 30 cells can simul taneously charge receiver battery has 2-line LCD display sells $340 isl8-936 can charge 3 batteries same rime Maximum pack size 36 cells 1518 real time high-resolution graphics LCD display RS-232 interface can read back battery pack performance display color graphic form computer Software Windows" includ ed Price isl8 $865 nothing else close available industry Schulze Chameleon chargers have proven worth may contests used top electric flyers world wide power package supply TRIFFIK other SPEED-400 pylon racers consists broken-in dynamically tuned SPEED-400 motor use own test bench capacitors foi brush arc suppression two 25 mm mounting screws Graupner CAM 5x5 prop precision read expensive spinner Schulze f21-l7bes motor speed controller soft start BEC brake controller will withstand high currents used 6V motor 7 cells motor/prop combination sells $3950 controller $4995 See favorite dealer or. order direct RIC Direct 2323 C Tamara Lane San Marcos CA 92069 tel 760 752-9330 look us up httpllwwwrc-directcoin looked good time fly asked Electric power pioneer Bob Benjamin make both models checkout flights Bob superb pilot first modeler install test-fly prototype AstroFlight 90 motor little surprised well J-3 performed its initial flights Bob lifting off half-throttle doing complete ten-maneuver Scale routine third flight inaugural flights PA-12 better geared motor would loop level flight perform smooth Scalelike rolls ease noticeable increase climb rate compared direct-drive J-3 Perhaps remarkable characteristic PA-12s Scalelike soundsuper-deep realistic Bob credit sound AstroFlight gearbox turning large 20 x 10 propeller deletion plastic window right side fuselage entered both models 1996 Evergreen Scale Rally Hubbard Oregon basically qualifying event US Scale Masters Final offers two additional Scale competition categories entered J-3 AMA 511 Sportsman Scale Bob entered PA-12 Team Scale After few nervous shaky flights able settle down take first place very forgiving J-3 Bob continuously put fantastic Scale routines PA-12 placed second Expert Team Scale dont doubt Electric power large Scale models will continue grow advantages never having clean messy glow fuel highly-detailed surface super-reliable starting characteristics great use Electric power next dream Scale model fly cleanly quietly y Smithhisler 1703 105th Ave Ct E Edgewood WA 98372 Safe EasyRC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing pattems ly landing plane Leaming shout Safety Cost $995 Building Flying RC Sailptanes Electric Gliders explores intricacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-800-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 RIC Sport Competition Aerobatics comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven again under actual training conditions Chapters include Choosing acrobatic airplanes Radio selection Adjusting precisely trimming airplanes ral aerobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $1395 Also available pocket guide containing reproduction of acrobatic maneuvers Cost $299 Shipping & Handing charge $250 added book purchased 26 Model Aviation

Author: R. Smithheisler


Edition: Model Aviation - 1997/05
Page Numbers: 16, 17, 19, 20, 23, 26

NO OCR TEXT NO OCR TEXT PA-12s tail surfaces show light simple construction PA-12 wing struts shown modified diagonal ribs downsized weight savings stock J-3 kit match struts full-scale aircraft wing area 1000-1400 square inches gross weight 12-16 pounds Sig catalog notes J-3 105-inch wingspan has 1600 square inches wing area estimated finished weight 1416 pounds looked Sport 90 good match better idea 1-3s actual flight performance estimated watts per pound might have used formula has worked very well 25- 40-size Electric models took number cells used 90 motor 32 36 multiplied nominal cell voltage 11 multiplied number estimated amps would drawn 30 35 32 cells 32 x 11 x 30 would have 1056 total watts input power 36 cells 36 x 11 x 35 would have 1386 total input watts Sigs highest weight estimate 16 pounds Cub would give either 66 86 watts per pound depending number cells used Electric modelers use guideline 50 watts input power per pound ensure lightly-loaded airplane will take off fly Increasing 60 70 watts allows easy Sport aerobatics such loops rolls stall turns Anything 70-100 watts might allow highperformance-type maneuvers such outside loops knife-edges vertical rolls maneuvers dependent type aircraft flown Using input power does allow various efficiency factors hut does give relative prediction performance has proven work well Few structural changes needed convert Sig quarter-scale 1-3 Electric no vibration associated motors able use thin medium cyanoacrylate CyA glue construction Since epoxy very heavy limited critical areas three forward-fuselage nose mounting joints wing strut assemblies 5/i2 steel cabin wire installations tail surfaces already fairly light downsized diagonal ribs / x 3/ /16 x 3/ also changed rear outline PA- 12 rudder curve unlike Cubs would match full-scale rudder used duplicate parts horizontal elevatorthey matched perfectly easy make 1-3s wing built changes center section PA-12s wing increased 2 inches match full-size airplanes wing 11 inches wider Cubs also used /32 sheet balsa recreate distinctive humpback center section Except widening PA- 12 fuselage both fuselages built modified same way basic stick framework 5A6 square balsa weighed piece replaced heavy side also replaced 1/ Lite Ply forward-fuselage sheeting /s sheet balsa Both firewalls built per Sig instructions except addition large cooling holes Without batteries speed controller other electrical components could overheat become severely damaged also did install clear-plastic window right side fuselage Without window cooling air passes through fuselage radio system can easily accessed having remove wing 1-3 kit cowling consisted six plastic pieces assembled medium CyA per instructions Sig recommends applying fiberglass cloth epoxy entire inside surface finished assembly decided against since no vibration think saved three four ounces model weight Cub its third year flying cowl shows no signs cracking PA-12 cowling purchased May1997 19 new wing center section constructed order match PA-12 fuselage Vince Miller Designs high-quality fiberglass needed very little preparation model also scale openings front great getting cooling air through fuselage J-3 wing struts built per Sig manual struts PA-12 modified match ones full-scale aircraft two vertical jury struts attached center horizontal brace replaced round brass vertical piece Sig kit /s sheet aluminum bent plate made longer vertical brass pieces connect center plate Although Hayes AL6O nylon engine mounts normally used 60 four-stroke glow engines used both models installed two aircraft-quality hose clamps half width weight normal hardware store clamps fasten motor supportit simple quick remove never needs adjustment Since hoping enter J-3 AMA Scale contests installed scalelooking wheelsspecifically model slightly heavy 12 ounces look though real thing used new Du-Bro Feather Lite wheels PA-12 weigh seven ounces per pair fit inside plastic wheel pants Super Cruiser no problems chose 21st Century Fabric Coverite both models iron-on covering prepainted polyester does require additional sealants top-coating its real timesaver compared traditional method painting brushed coat 21st Century Balsarite models wooden framework though required help keep Fabric tacked down its pulled really tight chose 21st Centurys Cub Yellow J-3 Dark Red PA- 12 both models black trim used 21st Century Filma low-heat iron-on covering can easily applied atop fabric Radio gear installation both models similar large glow-powered models began purchasing Futaba 6VA Skysport FM system good quality six-channel system valuable mixing capabilities J-3 PA-12 have included Rl27DF receiver mounted Velcro inside left fuselage did wrap receiver other radio components protective foamits necessary vibration fuel problems associated glow engines mounted standard S148 servos wing panel aileron controls included Futaba 500 mAh receiver battery pack replaced 900 mAh 20 Model Aviation 2 firewall conversion showing motor mounting cooling air inletsthey cool battery speed controller etc J-3 firewall conversion showing motor mounting cooling air inlet holesprevents overheating electrical parts PA-12 fuselage structure shown modified Sig J-3 kitbasic stick framework 5A6 square balsa pack SR Batteriesit has virtually same weight 500 mAh pack almost twice capacity rudder elevator controls put aside standard S148 servos replaced Futaba S9202 coreless servos S9202s almost identical weight 5148s can deliver 69 ounces torque instead 42 throttle control both airplanes installed AstroFlight high-rate electronic speed controllers J-3 has model 207 PA-12 has new 204 controllers will handle up 36 cells 50 amps As receiver both have mounted Velcro fuselage sides Two other electrical items installed unique Electric model first main wiring harness system 13-gauge wiring basically used connect motor battery speed controller charging jack motor As other Electric models installed two additional safety items harnessa master on/off switch 40 amp automotive fuse second item rechargeable nickel cadmium Ni-Cd motor battery pack both models started out Sanyo SCRC 1700 mAb cells arranged six- seven-cell packs wired together series using Sermos connectors achieve 32 cells J-3 35 cells PA-12 packs easily secured Velcro bottom fuselages benefit using separate packs instead 32 35 cells hardwired together ease could rearrangeda big plus Electrics balancing model model electronically weighed before first test flights Cub totaled 17 pounds PA-12 tipped scale 19 pounds 2 ounces estimated Cub would have wing loading 245 ounces per square foot 62 watts power per pound airplane Super Cruiser would have comfortable 27-ounce wing loading robust 68 watts per pound numbers New twist-on head precision pin aligns piston sleeve eliminates siripped head bolts provides head torque reduces head leaks increases power increases performance reduces engine wear increases engine life IOU 1ordDe68no 4012- 40 Minew/mufller 4075- 40 ABC Sport Manne 5100-67 ii icc Inboard 5101 -67i11cc Outboard 5350- 52133cc Inboard 5375-82 133ccOuIboard 8702-4575cc Outboard 8907 21 35cc Outboard 8916- 21 i3scc Inboard 9181- 45 i7scci Inboard 9575-10 i164cci Outboard New 97 engineers K&B manufacturing come Three ingenious improvements have exciusivefy developed new K&B 61 ABC engine new twist head greatiy improves engine performance reduces engine wear whiie redesigned porling increases engine power Also new tuned muffier design actualiy acts iike tuned pipe increasing horsepower whiie making engine run quieter over 50 years K&B Manufacturing has leader quality us Made hobby products continues tradition ali new K&B 61 ABC too r. ucled Fan PN DE5CRIPI1ON 4011 -40R/CFrert8olorw/Muffinr 4850-488ICA8cw/TunedMuloer 5299 82 RIG Ducled Fan Heat Sink Head 5303 82 8/C Oucled Fan 5602-20R/CSpnrtrler 5688-28 R/G Spatrter 5802-66 P/C Spertster 5902- A5 8/C Sporlster 1N*WS S 65 Sporlster40 9/C PNDHscRIP1SON 6858-61 R/CABCw/Tuned Muffler 6550-61 P1Gw/Muffler 8918- 35cc Ducted Fan 9101- 75cc Ouzted Fan 955- 102R/CREAerow/Muffier 9549- 102 8/C Ducted Heal Sink Headi 9550- l02RICDectedFcer S204523579/ 5204533593 2100 College Dr Lake Havasu City Arizona 86403 n-ndI k&b@her COrn Repairs Updates Custom Modifications Frequency Changes 6 Send Legal sized SAF 1997 Meter conversions ACE Airtronics Aristo-craft Cirrus EKCatalog containing lists RIC maintenance hints Futaba Hitec Heathkit Hobby Shack JR Kraft KGL KSE KlineDiscover MCard VISA COD KoPropo Pro-Line RCD Tower Hobbies World Engines & othersUPS USMAIL FED EX etc Calibrated Equipment Quick Turnaround Walk-in daily service 800 am-500 pmSend E-Mail PTWaters@junocom May1997 23 RIC SERVICE AT ITS BEST Sales Service Anything Radio Controlled KMI 7420 Seven Mile Rd Northville Michigan 48167 Ph 810-486-4800 Fax 810-486-1603 maitt*4er HANDY jig-built sail plane manufactured Czech Republic exacting standards HANDY covered *cote 2 colors As light thermal conditions flying small slopes San name suggests excellent hand launch glider responds Marcos Wingspan 150cm 59 profile Selig302l weight radio 75-8 oz Full up wing loading will considerably less 6oz/ft2 HANDY also available electric version ready mount SPEED-400 motor 6x3 fold ing prop 7-cell pack get 3 4 climbs charge Price HANDY HANDY-E $118 also offer powerplant HANDY-E ACT-i solid-state Piezo Gyro compatible Futaba RCD JR radios single-unit ACT-i manufactured Germany now well over 2000 gyros flying ACT-i uses microprocessor calibrate piezo element very precisely calcu lates corrections required tail rotor servo digital design seems have solved drift problems found earlier analog gyro sys tems ACT-i very accurate lightning fast Weight 11 oz Current consumption 35 mA thus does require heavyduty airborne battery new price $13995 Also available Heavy Duty HD version 07 oz super-lightweight version electric helos flying ACT-i helicopters 40 size airplane ailerons should see stable airplane became sudden pix TRIFFIK 70 cm 275 span SPEED-400 pylon racer manufactured glass fiber carbon fiber epoxy motor 7-cell pack help transform little beauty competitive racer experienced pilot Graupner manufactures carbon-rein forced 5x5 CAM prop spinner winning combination carry plane prop/motor combinations tune motor max rpm efficiency TRIFFIK $15800 must see planes excellent workmanship plane individually airbrushed exciting paint schemes Finish very very smooth minimum resistance drag mum airspeed Wing profile MH43 RIC-Direct pleased bring famous Schulze Chameleon chargers smart micro-processor charges need no setup clever enough out the number cells pack optimum fast charge rate varies during charge cycle since micro-processor polls bat tery regular time intervals always calculating best safe charge rate Switchoff automatic charger will revert trickle can program num ber charge/discharge cycles condition charge almost battery pack charge algorithms good NiCads NiMH packs will charge lead-acid flight box battery is6-430 charger automatically handles flight packs up 30 cells can simul taneously charge receiver battery has 2-line LCD display sells $340 isl8-936 can charge 3 batteries same rime Maximum pack size 36 cells 1518 real time high-resolution graphics LCD display RS-232 interface can read back battery pack performance display color graphic form computer Software Windows" includ ed Price isl8 $865 nothing else close available industry Schulze Chameleon chargers have proven worth may contests used top electric flyers world wide power package supply TRIFFIK other SPEED-400 pylon racers consists broken-in dynamically tuned SPEED-400 motor use own test bench capacitors foi brush arc suppression two 25 mm mounting screws Graupner CAM 5x5 prop precision read expensive spinner Schulze f21-l7bes motor speed controller soft start BEC brake controller will withstand high currents used 6V motor 7 cells motor/prop combination sells $3950 controller $4995 See favorite dealer or. order direct RIC Direct 2323 C Tamara Lane San Marcos CA 92069 tel 760 752-9330 look us up httpllwwwrc-directcoin looked good time fly asked Electric power pioneer Bob Benjamin make both models checkout flights Bob superb pilot first modeler install test-fly prototype AstroFlight 90 motor little surprised well J-3 performed its initial flights Bob lifting off half-throttle doing complete ten-maneuver Scale routine third flight inaugural flights PA-12 better geared motor would loop level flight perform smooth Scalelike rolls ease noticeable increase climb rate compared direct-drive J-3 Perhaps remarkable characteristic PA-12s Scalelike soundsuper-deep realistic Bob credit sound AstroFlight gearbox turning large 20 x 10 propeller deletion plastic window right side fuselage entered both models 1996 Evergreen Scale Rally Hubbard Oregon basically qualifying event US Scale Masters Final offers two additional Scale competition categories entered J-3 AMA 511 Sportsman Scale Bob entered PA-12 Team Scale After few nervous shaky flights able settle down take first place very forgiving J-3 Bob continuously put fantastic Scale routines PA-12 placed second Expert Team Scale dont doubt Electric power large Scale models will continue grow advantages never having clean messy glow fuel highly-detailed surface super-reliable starting characteristics great use Electric power next dream Scale model fly cleanly quietly y Smithhisler 1703 105th Ave Ct E Edgewood WA 98372 Safe EasyRC Flying has favorite beginning pilots instructors six step tested program completely presented easy understand guide Chapters include Aerodynamics Selecting trainer plane Basic flight orming take offs Landing pattems ly landing plane Leaming shout Safety Cost $995 Building Flying RC Sailptanes Electric Gliders explores intricacies different type R/C flying Chapters include Landing methods Thermal flying Slope soaring Operating electric motors power systems Choosing batteries charging Building tips techniques Cost $1195 Call Nighthawk Publishing 1-800-390-HAWK Send Check Money Order P 0 Box 15019 Colorado Springs CO 80935 RIC Sport Competition Aerobatics comprehensive manual takes pilot exciting world RC aerobatics intricacies aerobatic flight presented easy understand steps have proven again under actual training conditions Chapters include Choosing acrobatic airplanes Radio selection Adjusting precisely trimming airplanes ral aerobatic maneuvers detailed instructions Contest preparation actual competition tips Cost $1395 Also available pocket guide containing reproduction of acrobatic maneuvers Cost $299 Shipping & Handing charge $250 added book purchased 26 Model Aviation

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