MILWAUKEE Scale Rally first annual RC Hobbies Scale Rally met partial success due high wind both days June 30th July 1st Twenty-seven planes hand made flights spite conditions As usual meets type number scale models displayed innovative ideas construc tion methods informational exchange basis modelers presence scene Phe nomenal growth rally theme indicative modelers desire congregate examine others handiwork seek ideas observe scale models action Milwaukee Rally several distinctive models Norb Grobarchik displayed flew -scale Focke WuIf FW 190 enlarged Brian Taylors plans Some 50% its parts fabricated corrugated cardboard con struction material added little nothing planes weight 20 pounds cardboard basic fuselage structure combined spruce stringers support thin a skin Wing skins 3/32 balsa covered cardboard ribs Too often FW 190 seen shortened landing gear avoid weakness results true scale length disturbing flaw scale effect Norb solved problem using eter drill rod foot-long legs Inside fiberglass cowl Quadra engine its flywheel balanced Brisighella modi fication Tail surface servos mounted fuselage rear chokes long leads Norb understandably enthused about flight plane stable realistic less aero batic smaller models will perform basic roll loop maneuvers very likely agility comparable prototype rolls aided use Friese-type ailerons real proof cardboard durability came last flight engine quit unexpectedly flying downwind near ground After extremely hard landing some balsa damage cardboard components survived Another outstanding -scale example scratch-built Bucker Jungmeister BU-133 Jim Scott Aeromodeller scale drawings assisted Dave Platt model drawings 1125-pound plane used OS 90 16-4 prop Jim achieved remarkable simulation Siemens engine using balsa discs cylinder fins turned balsa exhaust collector ring neatly disguise OS crankcase front cone fabricated aluminum litho-plate holes added cooling tumed balsa engine cowl coated both intemal external surfaces fiberglass cloth resin Cowl bumps cylinder heads made mixture micro-balloons resin balsa form Finish Super Coverite three coats clear butyrate Hobbypoxy color Fuselage forward areas covered lithoplate simulate metal panels Fiberglass cloth mudguards made over form fastened axles metal brackets Finding super-excellent model quality benefits attendance scale rallies part explanation growing popularity no real scarcity good RC scale models builders dislike competition attendant need docu mentation research disciplined flying have found low pressure rally ideal meeting place display creations Really prominent rallies have no static flight judging no prizes trophies Data Source 4eromodeller MAP three-viewtype drawings used construction Bucker Jungmeister mentioned earlier now available midwest International Scale Plan Service 4 Cleveland Tern Hobart IN 46342 postpaid catalog 60e includes listing 80 RC Scale plans writing information include addressed stamped reply envelope Sport Scale Rules Gary Brown writes regarding authentication colors schemes older airplanes have often thought much easier Sport Scale would did have go Continued page 120 32 Model Aviation Model orruII-sIze Jim CUIL b ockerJungmeistercould either The6Sin beauty 0S60 powered Right bigengineis disguisedwithinthe dummy 7-cylinder Siemens exhaust collector ring turned balsa crankcase perforated air cooling Cockpit OT varus-uIetrIui Front pilot examines tiny map rear man reaches iosport communication tube conversation piece Norb Grobarchiks scale Focke- WuIf 190 50% constructed corrugated cardboard thick wire struts able use long scale gear being flimsy Still Using bid Fashioned Hinges will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 4502 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 15 ORPRiCE 3 ft S195 LARGE 14 1~s~GOG EASYTO INSTALL 5ISTALL HR/GE USE IGHT P/Al 102 MAKE SMALL HOLE EVERY INCH OR $02OR/P CTAA1OACRYLATE GLIE I/il HOLESCAPillARY AC7LW SILL CANNY GLUE - ALONG ENOIE JO/NT FOR AOO/T/ONAL SELUR/Tt INSERT SMALL P/Al EVERY FEW /NCHES CUT OFF FLUSH F/LL AND SAND AS SEEDED FOR F/N/SH/NG Send Free info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 OUR AIM THE FUN IN SPORT FLYING SPECIALIZING IN OT FF KITS AND ENGINES FOR THE COMPETITOR WE HAVE THE HOT EQUIPMENT 0 5 Enterprises 4 RC Scale Wischers continued page 32 great lengths prove actual color scheme shape form via three-view drawing employing paint scheme typical aircraft also seems like would open up new subjects Sport Scale aircraft have overdone past point boredom least opinion would tend agree Gary especially after experiencing nit-picking takes place contests regarding color schemes also insistence upon agreement model color hues inaccurate color photos has experience color printing processes render accurate hues generally unacceptable proof photo has value proof color line locations Gary referring building 1930-era plane color documentation cant found As Sport Scale rules written presently color photo required some proof color scheme used model needed prove resembles particular prototype 30% maximum static score awarded finish color markings contestants winning potential considerably diminished Ifno proof can found modeler discouraged building plane lose another interesting subject Flight Comparison flight qualities model compare another compare prototype rare opportunity compare Piel Beryl its full scale counterpart recentiy privileged make several flights Ellsworth Bentleys homebuilt Beryl model copied prototype built Norm Taylor Oregon constructed drawings bor rowed Ellsworth four years ago Beryl completed last year kept near home offered numerous invitations fly opportunity compare its flight model became possible Ellsworths plane jewel among custom homebuilts mark quality has misled some thinking humble origin including FAA inspector Beryl has look its high gloss fiberglass finish finely crafted factory airplane Canopy flaps electrically driven custom interior lined deep pile material deaden sound Navigational radio equipment have already used cross-country flights points distant Alaska two heavyweights aboard takeoff accomplished several hundred feet Using CUT //4 OEEP SL/T ALONG TIE FULL LENGTH 02 THE MAThS/LI SJRFACES 150-hp engine full throttle rate climb indicated 1400 feet early point flight similarity model con spicuous Its climb angle feeling solidity familiar Something prepared closeness wing tips small plane 13 feet center Aileron sensitivity roll rate similar model Steep turns could entered terminated sharp abruptness leaving impression flying own little personal fighter plane steep turn found basic difference model Less elevator needed keep nose dropping resulted climbing turns possibly because 45 -banked turns steep performed model sometimes tend rack models around sky unrealistic manner nothing like flight real thing open ones eyes flaws technique such turns steep cause pilot black out characteristics found very similar between prototype model lack sharp break stall point well rounded leading edge gives soft stall no drop-off wing tip though no washout narrow semi-elliptical tip model will reverse spin quite easily Unfortunately wore no parachutes could check feature Ellsworth found motor lowering flaps initially too little torque go beyond 100 motor size increased Similar ly flap servo worked harder other modeL Flaps very effective applica tion can felt noticeable sliding forward seat belt also abrupt speed change model flaps lowered Both have tendency float about touch down pronounced full flaps used oversize rudder really moves tail around before after landing Aero piccola electric brakes model used unison differential full size limits tbe models turning radius Except limitation taxiing both similar steering car precise ground handling effortless After years flying model flight prototype ranks rewarding informative experiences Check Batteries Scale modelers very trusting group people spend years thousands hours create masterpiece hope batteries will function keep piece Because common fly contest type scale model during competition possibly few flights earlier assume batteries havent much use should last forever especially true have aged have improperly charged Kraft charger intended use batteries will accept high charge rate typically 175 ma battery pack used Beryl consisting four GE 550 cells C thought high charge rate type purchased such Again cell labels specified charge rate 50 ma Krafts charger rate 165 ma airborne pack cooking batteries cell shorted internally placed remain ing three cells charge rate 240 ma almost five times too great discovered after three flights recent Nats flown three cell battery pack fourth cell shorted wondered about Beryls sudden inability snap roll command Low voltage means slow servos reason fortunate enough survive three Nats flights several afterward 120 Model Aviation GAPLESS HINGE SLOTTER Gapless Hinges Simplifies installation 4 Sizes 01 Balsa PRiCE 95 PLANES 1356 Ervtn Road BOATS PO Box 227 CARS Pansies Center TRAINS Van Wart OH 45896 Joe Gaybs- 419 2382625 WE BUY OR TRADE OLD ENGINES AND KITS Del N QUIKRAY-500 has enneered meet need model could built fast very strong meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong e Bull lightandfast baby will turn Pylon tighter anything have seen will snap stsll out. QUIICRAY-500 can built complete air Twelve Fifteen hours covered materials such SUPER MONOKOTE other covering same family 500 FAST IS WHAT SHE IS DOCILE Wingspan 50 inArea 503 sq Engine 1945Weight 3 lbs Material AU Balsa Ply needed servo slowness discernable went unnoticed Kraft receiver has good range substandard 36 volts Battery voltage can checked charging plug Checking voltage immediately before first contest flight could avert disaster Most importantly determine positively whether batteries compatible charger being used have heard said nickel-cad batteries can fast charged view recent experience doubt no comparison between cost scale model batteries fly Bob Dolly Wisclser Rt 1 5-221 Lapham Peak Roaa Delafield WI 53018 CL Aerobatics/Paul continued page 51 have actually used years fliers usually result better performing engine Teds Imitation makes use K/H RC engine mount good way go novice may want use conventional maple engine bearers i plywood bulkheads mounted modified fuselage novice now ready move Step Four full fuselage built-up airplane 35 engine has using along can still used some available kits market However may want consider Max 40 FSR Supertigre 46 HP 40 Max 45 FSR engines would needed some bigger therefore usually heavier airplanes further refinement aid novice may want order foam wing replacement kit wing will just about insure end result straight warp downfall novice flier writing producer foam wings John Poynter 10261 Janice Lynn Cypress CA 90630 telephone 213 596-9053 Assuming novice knows basics ofthe pattern stage too risky invest approximately $4000 foam wing since days multiple crashing should over time novice graduates full fuselage stunter What follows brief rundown available built-up kits Gieseke NoblerTop Flite 50 wing 510 sq modemized version George Aldrichs 1951-52 original can still use 35-size engine plane comes out much 48 oz lot kit definitely takes some time build will certainly fly An outstanding kit Sig Chipmunk 535 wing 570 sq can build right off plans use writers suggestions last column Model viation Again can use good 35-size engine plane four-oz tank As long build wing straight align parts wing stabilizer fuselage etc plane will fly right National finals StilettoofLesMcDonaldiskittedbyM& P still available hobby shops plane will fly much better 40 45-46 engine 35 size unless can build about43 oz less difficult will probably want replace some wood heavy Sig Akrobat aS wing span 550 sq in. has popularity Chipmunk has really good plane will fly best Akrobat slightly smaller Chipmunk advised try keep weight down 42-44 oz less 35-size engine Genesis M & P foam-core wing model Bob Hunts World Championship plane although slightly smaller version Bob cut foam cores kit means will have great start wing required cover wing balsa very complete instructions included kit take time advanced novice should able come out good wing Remember key weight reduction foam wing wood much glue spread over wing Dont put iton like peanut butter thickness plane will fly best 40-size engine ST46 Sig Mustang also comes foam wing 50 wing span 480 sq small plane keep weight to4O oz less possible plane can fly competitively must keep light may want try Jetco Dolphin Plan good 40 ST46 engine take pains get wing straight true plane will fly you have keep weight under 50 oz get wing straight Comparing selection available now August 1975 writer similar column see five new kits available Thats pretty good control line information Stunt orP M P write Wsnn Paul 1640 Maywick Dr Lexington KY 46504 February 1980 121 THE TRIPLE THREAT / LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AHDUMMCRAFT tOUL co INC AAmco Inc humbly say no more
Edition: Model Aviation - 1980/02
Page Numbers: 32, 120, 121
MILWAUKEE Scale Rally first annual RC Hobbies Scale Rally met partial success due high wind both days June 30th July 1st Twenty-seven planes hand made flights spite conditions As usual meets type number scale models displayed innovative ideas construc tion methods informational exchange basis modelers presence scene Phe nomenal growth rally theme indicative modelers desire congregate examine others handiwork seek ideas observe scale models action Milwaukee Rally several distinctive models Norb Grobarchik displayed flew -scale Focke WuIf FW 190 enlarged Brian Taylors plans Some 50% its parts fabricated corrugated cardboard con struction material added little nothing planes weight 20 pounds cardboard basic fuselage structure combined spruce stringers support thin a skin Wing skins 3/32 balsa covered cardboard ribs Too often FW 190 seen shortened landing gear avoid weakness results true scale length disturbing flaw scale effect Norb solved problem using eter drill rod foot-long legs Inside fiberglass cowl Quadra engine its flywheel balanced Brisighella modi fication Tail surface servos mounted fuselage rear chokes long leads Norb understandably enthused about flight plane stable realistic less aero batic smaller models will perform basic roll loop maneuvers very likely agility comparable prototype rolls aided use Friese-type ailerons real proof cardboard durability came last flight engine quit unexpectedly flying downwind near ground After extremely hard landing some balsa damage cardboard components survived Another outstanding -scale example scratch-built Bucker Jungmeister BU-133 Jim Scott Aeromodeller scale drawings assisted Dave Platt model drawings 1125-pound plane used OS 90 16-4 prop Jim achieved remarkable simulation Siemens engine using balsa discs cylinder fins turned balsa exhaust collector ring neatly disguise OS crankcase front cone fabricated aluminum litho-plate holes added cooling tumed balsa engine cowl coated both intemal external surfaces fiberglass cloth resin Cowl bumps cylinder heads made mixture micro-balloons resin balsa form Finish Super Coverite three coats clear butyrate Hobbypoxy color Fuselage forward areas covered lithoplate simulate metal panels Fiberglass cloth mudguards made over form fastened axles metal brackets Finding super-excellent model quality benefits attendance scale rallies part explanation growing popularity no real scarcity good RC scale models builders dislike competition attendant need docu mentation research disciplined flying have found low pressure rally ideal meeting place display creations Really prominent rallies have no static flight judging no prizes trophies Data Source 4eromodeller MAP three-viewtype drawings used construction Bucker Jungmeister mentioned earlier now available midwest International Scale Plan Service 4 Cleveland Tern Hobart IN 46342 postpaid catalog 60e includes listing 80 RC Scale plans writing information include addressed stamped reply envelope Sport Scale Rules Gary Brown writes regarding authentication colors schemes older airplanes have often thought much easier Sport Scale would did have go Continued page 120 32 Model Aviation Model orruII-sIze Jim CUIL b ockerJungmeistercould either The6Sin beauty 0S60 powered Right bigengineis disguisedwithinthe dummy 7-cylinder Siemens exhaust collector ring turned balsa crankcase perforated air cooling Cockpit OT varus-uIetrIui Front pilot examines tiny map rear man reaches iosport communication tube conversation piece Norb Grobarchiks scale Focke- WuIf 190 50% constructed corrugated cardboard thick wire struts able use long scale gear being flimsy Still Using bid Fashioned Hinges will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 4502 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 15 ORPRiCE 3 ft S195 LARGE 14 1~s~GOG EASYTO INSTALL 5ISTALL HR/GE USE IGHT P/Al 102 MAKE SMALL HOLE EVERY INCH OR $02OR/P CTAA1OACRYLATE GLIE I/il HOLESCAPillARY AC7LW SILL CANNY GLUE - ALONG ENOIE JO/NT FOR AOO/T/ONAL SELUR/Tt INSERT SMALL P/Al EVERY FEW /NCHES CUT OFF FLUSH F/LL AND SAND AS SEEDED FOR F/N/SH/NG Send Free info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 OUR AIM THE FUN IN SPORT FLYING SPECIALIZING IN OT FF KITS AND ENGINES FOR THE COMPETITOR WE HAVE THE HOT EQUIPMENT 0 5 Enterprises 4 RC Scale Wischers continued page 32 great lengths prove actual color scheme shape form via three-view drawing employing paint scheme typical aircraft also seems like would open up new subjects Sport Scale aircraft have overdone past point boredom least opinion would tend agree Gary especially after experiencing nit-picking takes place contests regarding color schemes also insistence upon agreement model color hues inaccurate color photos has experience color printing processes render accurate hues generally unacceptable proof photo has value proof color line locations Gary referring building 1930-era plane color documentation cant found As Sport Scale rules written presently color photo required some proof color scheme used model needed prove resembles particular prototype 30% maximum static score awarded finish color markings contestants winning potential considerably diminished Ifno proof can found modeler discouraged building plane lose another interesting subject Flight Comparison flight qualities model compare another compare prototype rare opportunity compare Piel Beryl its full scale counterpart recentiy privileged make several flights Ellsworth Bentleys homebuilt Beryl model copied prototype built Norm Taylor Oregon constructed drawings bor rowed Ellsworth four years ago Beryl completed last year kept near home offered numerous invitations fly opportunity compare its flight model became possible Ellsworths plane jewel among custom homebuilts mark quality has misled some thinking humble origin including FAA inspector Beryl has look its high gloss fiberglass finish finely crafted factory airplane Canopy flaps electrically driven custom interior lined deep pile material deaden sound Navigational radio equipment have already used cross-country flights points distant Alaska two heavyweights aboard takeoff accomplished several hundred feet Using CUT //4 OEEP SL/T ALONG TIE FULL LENGTH 02 THE MAThS/LI SJRFACES 150-hp engine full throttle rate climb indicated 1400 feet early point flight similarity model con spicuous Its climb angle feeling solidity familiar Something prepared closeness wing tips small plane 13 feet center Aileron sensitivity roll rate similar model Steep turns could entered terminated sharp abruptness leaving impression flying own little personal fighter plane steep turn found basic difference model Less elevator needed keep nose dropping resulted climbing turns possibly because 45 -banked turns steep performed model sometimes tend rack models around sky unrealistic manner nothing like flight real thing open ones eyes flaws technique such turns steep cause pilot black out characteristics found very similar between prototype model lack sharp break stall point well rounded leading edge gives soft stall no drop-off wing tip though no washout narrow semi-elliptical tip model will reverse spin quite easily Unfortunately wore no parachutes could check feature Ellsworth found motor lowering flaps initially too little torque go beyond 100 motor size increased Similar ly flap servo worked harder other modeL Flaps very effective applica tion can felt noticeable sliding forward seat belt also abrupt speed change model flaps lowered Both have tendency float about touch down pronounced full flaps used oversize rudder really moves tail around before after landing Aero piccola electric brakes model used unison differential full size limits tbe models turning radius Except limitation taxiing both similar steering car precise ground handling effortless After years flying model flight prototype ranks rewarding informative experiences Check Batteries Scale modelers very trusting group people spend years thousands hours create masterpiece hope batteries will function keep piece Because common fly contest type scale model during competition possibly few flights earlier assume batteries havent much use should last forever especially true have aged have improperly charged Kraft charger intended use batteries will accept high charge rate typically 175 ma battery pack used Beryl consisting four GE 550 cells C thought high charge rate type purchased such Again cell labels specified charge rate 50 ma Krafts charger rate 165 ma airborne pack cooking batteries cell shorted internally placed remain ing three cells charge rate 240 ma almost five times too great discovered after three flights recent Nats flown three cell battery pack fourth cell shorted wondered about Beryls sudden inability snap roll command Low voltage means slow servos reason fortunate enough survive three Nats flights several afterward 120 Model Aviation GAPLESS HINGE SLOTTER Gapless Hinges Simplifies installation 4 Sizes 01 Balsa PRiCE 95 PLANES 1356 Ervtn Road BOATS PO Box 227 CARS Pansies Center TRAINS Van Wart OH 45896 Joe Gaybs- 419 2382625 WE BUY OR TRADE OLD ENGINES AND KITS Del N QUIKRAY-500 has enneered meet need model could built fast very strong meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong e Bull lightandfast baby will turn Pylon tighter anything have seen will snap stsll out. QUIICRAY-500 can built complete air Twelve Fifteen hours covered materials such SUPER MONOKOTE other covering same family 500 FAST IS WHAT SHE IS DOCILE Wingspan 50 inArea 503 sq Engine 1945Weight 3 lbs Material AU Balsa Ply needed servo slowness discernable went unnoticed Kraft receiver has good range substandard 36 volts Battery voltage can checked charging plug Checking voltage immediately before first contest flight could avert disaster Most importantly determine positively whether batteries compatible charger being used have heard said nickel-cad batteries can fast charged view recent experience doubt no comparison between cost scale model batteries fly Bob Dolly Wisclser Rt 1 5-221 Lapham Peak Roaa Delafield WI 53018 CL Aerobatics/Paul continued page 51 have actually used years fliers usually result better performing engine Teds Imitation makes use K/H RC engine mount good way go novice may want use conventional maple engine bearers i plywood bulkheads mounted modified fuselage novice now ready move Step Four full fuselage built-up airplane 35 engine has using along can still used some available kits market However may want consider Max 40 FSR Supertigre 46 HP 40 Max 45 FSR engines would needed some bigger therefore usually heavier airplanes further refinement aid novice may want order foam wing replacement kit wing will just about insure end result straight warp downfall novice flier writing producer foam wings John Poynter 10261 Janice Lynn Cypress CA 90630 telephone 213 596-9053 Assuming novice knows basics ofthe pattern stage too risky invest approximately $4000 foam wing since days multiple crashing should over time novice graduates full fuselage stunter What follows brief rundown available built-up kits Gieseke NoblerTop Flite 50 wing 510 sq modemized version George Aldrichs 1951-52 original can still use 35-size engine plane comes out much 48 oz lot kit definitely takes some time build will certainly fly An outstanding kit Sig Chipmunk 535 wing 570 sq can build right off plans use writers suggestions last column Model viation Again can use good 35-size engine plane four-oz tank As long build wing straight align parts wing stabilizer fuselage etc plane will fly right National finals StilettoofLesMcDonaldiskittedbyM& P still available hobby shops plane will fly much better 40 45-46 engine 35 size unless can build about43 oz less difficult will probably want replace some wood heavy Sig Akrobat aS wing span 550 sq in. has popularity Chipmunk has really good plane will fly best Akrobat slightly smaller Chipmunk advised try keep weight down 42-44 oz less 35-size engine Genesis M & P foam-core wing model Bob Hunts World Championship plane although slightly smaller version Bob cut foam cores kit means will have great start wing required cover wing balsa very complete instructions included kit take time advanced novice should able come out good wing Remember key weight reduction foam wing wood much glue spread over wing Dont put iton like peanut butter thickness plane will fly best 40-size engine ST46 Sig Mustang also comes foam wing 50 wing span 480 sq small plane keep weight to4O oz less possible plane can fly competitively must keep light may want try Jetco Dolphin Plan good 40 ST46 engine take pains get wing straight true plane will fly you have keep weight under 50 oz get wing straight Comparing selection available now August 1975 writer similar column see five new kits available Thats pretty good control line information Stunt orP M P write Wsnn Paul 1640 Maywick Dr Lexington KY 46504 February 1980 121 THE TRIPLE THREAT / LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AHDUMMCRAFT tOUL co INC AAmco Inc humbly say no more
Edition: Model Aviation - 1980/02
Page Numbers: 32, 120, 121
MILWAUKEE Scale Rally first annual RC Hobbies Scale Rally met partial success due high wind both days June 30th July 1st Twenty-seven planes hand made flights spite conditions As usual meets type number scale models displayed innovative ideas construc tion methods informational exchange basis modelers presence scene Phe nomenal growth rally theme indicative modelers desire congregate examine others handiwork seek ideas observe scale models action Milwaukee Rally several distinctive models Norb Grobarchik displayed flew -scale Focke WuIf FW 190 enlarged Brian Taylors plans Some 50% its parts fabricated corrugated cardboard con struction material added little nothing planes weight 20 pounds cardboard basic fuselage structure combined spruce stringers support thin a skin Wing skins 3/32 balsa covered cardboard ribs Too often FW 190 seen shortened landing gear avoid weakness results true scale length disturbing flaw scale effect Norb solved problem using eter drill rod foot-long legs Inside fiberglass cowl Quadra engine its flywheel balanced Brisighella modi fication Tail surface servos mounted fuselage rear chokes long leads Norb understandably enthused about flight plane stable realistic less aero batic smaller models will perform basic roll loop maneuvers very likely agility comparable prototype rolls aided use Friese-type ailerons real proof cardboard durability came last flight engine quit unexpectedly flying downwind near ground After extremely hard landing some balsa damage cardboard components survived Another outstanding -scale example scratch-built Bucker Jungmeister BU-133 Jim Scott Aeromodeller scale drawings assisted Dave Platt model drawings 1125-pound plane used OS 90 16-4 prop Jim achieved remarkable simulation Siemens engine using balsa discs cylinder fins turned balsa exhaust collector ring neatly disguise OS crankcase front cone fabricated aluminum litho-plate holes added cooling tumed balsa engine cowl coated both intemal external surfaces fiberglass cloth resin Cowl bumps cylinder heads made mixture micro-balloons resin balsa form Finish Super Coverite three coats clear butyrate Hobbypoxy color Fuselage forward areas covered lithoplate simulate metal panels Fiberglass cloth mudguards made over form fastened axles metal brackets Finding super-excellent model quality benefits attendance scale rallies part explanation growing popularity no real scarcity good RC scale models builders dislike competition attendant need docu mentation research disciplined flying have found low pressure rally ideal meeting place display creations Really prominent rallies have no static flight judging no prizes trophies Data Source 4eromodeller MAP three-viewtype drawings used construction Bucker Jungmeister mentioned earlier now available midwest International Scale Plan Service 4 Cleveland Tern Hobart IN 46342 postpaid catalog 60e includes listing 80 RC Scale plans writing information include addressed stamped reply envelope Sport Scale Rules Gary Brown writes regarding authentication colors schemes older airplanes have often thought much easier Sport Scale would did have go Continued page 120 32 Model Aviation Model orruII-sIze Jim CUIL b ockerJungmeistercould either The6Sin beauty 0S60 powered Right bigengineis disguisedwithinthe dummy 7-cylinder Siemens exhaust collector ring turned balsa crankcase perforated air cooling Cockpit OT varus-uIetrIui Front pilot examines tiny map rear man reaches iosport communication tube conversation piece Norb Grobarchiks scale Focke- WuIf 190 50% constructed corrugated cardboard thick wire struts able use long scale gear being flimsy Still Using bid Fashioned Hinges will gain control efficiency eliminating gap between moveable stationary control surfaces will amazed performance gained using simple inexpen sive improvement FREE MOVEMENT 4502 STRONG AND LIGHTWEIGHT COMPLETELY FUELPROOF COMPATABLE WITH ALL IRON-ON MATERIALS COMES IN 3 FT LENGTHS SMALL 15 ORPRiCE 3 ft S195 LARGE 14 1~s~GOG EASYTO INSTALL 5ISTALL HR/GE USE IGHT P/Al 102 MAKE SMALL HOLE EVERY INCH OR $02OR/P CTAA1OACRYLATE GLIE I/il HOLESCAPillARY AC7LW SILL CANNY GLUE - ALONG ENOIE JO/NT FOR AOO/T/ONAL SELUR/Tt INSERT SMALL P/Al EVERY FEW /NCHES CUT OFF FLUSH F/LL AND SAND AS SEEDED FOR F/N/SH/NG Send Free info fine products FOURMOST PRODUCTS 4040 24th Avenue Forest Grove OR 97116 OUR AIM THE FUN IN SPORT FLYING SPECIALIZING IN OT FF KITS AND ENGINES FOR THE COMPETITOR WE HAVE THE HOT EQUIPMENT 0 5 Enterprises 4 RC Scale Wischers continued page 32 great lengths prove actual color scheme shape form via three-view drawing employing paint scheme typical aircraft also seems like would open up new subjects Sport Scale aircraft have overdone past point boredom least opinion would tend agree Gary especially after experiencing nit-picking takes place contests regarding color schemes also insistence upon agreement model color hues inaccurate color photos has experience color printing processes render accurate hues generally unacceptable proof photo has value proof color line locations Gary referring building 1930-era plane color documentation cant found As Sport Scale rules written presently color photo required some proof color scheme used model needed prove resembles particular prototype 30% maximum static score awarded finish color markings contestants winning potential considerably diminished Ifno proof can found modeler discouraged building plane lose another interesting subject Flight Comparison flight qualities model compare another compare prototype rare opportunity compare Piel Beryl its full scale counterpart recentiy privileged make several flights Ellsworth Bentleys homebuilt Beryl model copied prototype built Norm Taylor Oregon constructed drawings bor rowed Ellsworth four years ago Beryl completed last year kept near home offered numerous invitations fly opportunity compare its flight model became possible Ellsworths plane jewel among custom homebuilts mark quality has misled some thinking humble origin including FAA inspector Beryl has look its high gloss fiberglass finish finely crafted factory airplane Canopy flaps electrically driven custom interior lined deep pile material deaden sound Navigational radio equipment have already used cross-country flights points distant Alaska two heavyweights aboard takeoff accomplished several hundred feet Using CUT //4 OEEP SL/T ALONG TIE FULL LENGTH 02 THE MAThS/LI SJRFACES 150-hp engine full throttle rate climb indicated 1400 feet early point flight similarity model con spicuous Its climb angle feeling solidity familiar Something prepared closeness wing tips small plane 13 feet center Aileron sensitivity roll rate similar model Steep turns could entered terminated sharp abruptness leaving impression flying own little personal fighter plane steep turn found basic difference model Less elevator needed keep nose dropping resulted climbing turns possibly because 45 -banked turns steep performed model sometimes tend rack models around sky unrealistic manner nothing like flight real thing open ones eyes flaws technique such turns steep cause pilot black out characteristics found very similar between prototype model lack sharp break stall point well rounded leading edge gives soft stall no drop-off wing tip though no washout narrow semi-elliptical tip model will reverse spin quite easily Unfortunately wore no parachutes could check feature Ellsworth found motor lowering flaps initially too little torque go beyond 100 motor size increased Similar ly flap servo worked harder other modeL Flaps very effective applica tion can felt noticeable sliding forward seat belt also abrupt speed change model flaps lowered Both have tendency float about touch down pronounced full flaps used oversize rudder really moves tail around before after landing Aero piccola electric brakes model used unison differential full size limits tbe models turning radius Except limitation taxiing both similar steering car precise ground handling effortless After years flying model flight prototype ranks rewarding informative experiences Check Batteries Scale modelers very trusting group people spend years thousands hours create masterpiece hope batteries will function keep piece Because common fly contest type scale model during competition possibly few flights earlier assume batteries havent much use should last forever especially true have aged have improperly charged Kraft charger intended use batteries will accept high charge rate typically 175 ma battery pack used Beryl consisting four GE 550 cells C thought high charge rate type purchased such Again cell labels specified charge rate 50 ma Krafts charger rate 165 ma airborne pack cooking batteries cell shorted internally placed remain ing three cells charge rate 240 ma almost five times too great discovered after three flights recent Nats flown three cell battery pack fourth cell shorted wondered about Beryls sudden inability snap roll command Low voltage means slow servos reason fortunate enough survive three Nats flights several afterward 120 Model Aviation GAPLESS HINGE SLOTTER Gapless Hinges Simplifies installation 4 Sizes 01 Balsa PRiCE 95 PLANES 1356 Ervtn Road BOATS PO Box 227 CARS Pansies Center TRAINS Van Wart OH 45896 Joe Gaybs- 419 2382625 WE BUY OR TRADE OLD ENGINES AND KITS Del N QUIKRAY-500 has enneered meet need model could built fast very strong meet requirements AMA Sport Pylon Events Quicky 500 Pylon Racing Fun Fly Events around Sport Flying Trainer general Pattern Flying baby strong e Bull lightandfast baby will turn Pylon tighter anything have seen will snap stsll out. QUIICRAY-500 can built complete air Twelve Fifteen hours covered materials such SUPER MONOKOTE other covering same family 500 FAST IS WHAT SHE IS DOCILE Wingspan 50 inArea 503 sq Engine 1945Weight 3 lbs Material AU Balsa Ply needed servo slowness discernable went unnoticed Kraft receiver has good range substandard 36 volts Battery voltage can checked charging plug Checking voltage immediately before first contest flight could avert disaster Most importantly determine positively whether batteries compatible charger being used have heard said nickel-cad batteries can fast charged view recent experience doubt no comparison between cost scale model batteries fly Bob Dolly Wisclser Rt 1 5-221 Lapham Peak Roaa Delafield WI 53018 CL Aerobatics/Paul continued page 51 have actually used years fliers usually result better performing engine Teds Imitation makes use K/H RC engine mount good way go novice may want use conventional maple engine bearers i plywood bulkheads mounted modified fuselage novice now ready move Step Four full fuselage built-up airplane 35 engine has using along can still used some available kits market However may want consider Max 40 FSR Supertigre 46 HP 40 Max 45 FSR engines would needed some bigger therefore usually heavier airplanes further refinement aid novice may want order foam wing replacement kit wing will just about insure end result straight warp downfall novice flier writing producer foam wings John Poynter 10261 Janice Lynn Cypress CA 90630 telephone 213 596-9053 Assuming novice knows basics ofthe pattern stage too risky invest approximately $4000 foam wing since days multiple crashing should over time novice graduates full fuselage stunter What follows brief rundown available built-up kits Gieseke NoblerTop Flite 50 wing 510 sq modemized version George Aldrichs 1951-52 original can still use 35-size engine plane comes out much 48 oz lot kit definitely takes some time build will certainly fly An outstanding kit Sig Chipmunk 535 wing 570 sq can build right off plans use writers suggestions last column Model viation Again can use good 35-size engine plane four-oz tank As long build wing straight align parts wing stabilizer fuselage etc plane will fly right National finals StilettoofLesMcDonaldiskittedbyM& P still available hobby shops plane will fly much better 40 45-46 engine 35 size unless can build about43 oz less difficult will probably want replace some wood heavy Sig Akrobat aS wing span 550 sq in. has popularity Chipmunk has really good plane will fly best Akrobat slightly smaller Chipmunk advised try keep weight down 42-44 oz less 35-size engine Genesis M & P foam-core wing model Bob Hunts World Championship plane although slightly smaller version Bob cut foam cores kit means will have great start wing required cover wing balsa very complete instructions included kit take time advanced novice should able come out good wing Remember key weight reduction foam wing wood much glue spread over wing Dont put iton like peanut butter thickness plane will fly best 40-size engine ST46 Sig Mustang also comes foam wing 50 wing span 480 sq small plane keep weight to4O oz less possible plane can fly competitively must keep light may want try Jetco Dolphin Plan good 40 ST46 engine take pains get wing straight true plane will fly you have keep weight under 50 oz get wing straight Comparing selection available now August 1975 writer similar column see five new kits available Thats pretty good control line information Stunt orP M P write Wsnn Paul 1640 Maywick Dr Lexington KY 46504 February 1980 121 THE TRIPLE THREAT / LIGHT AND QUIK ITS FULL OF TIGER EATING GRINS!! AHDUMMCRAFT tOUL co INC AAmco Inc humbly say no more