RC EQUIPMENT Scale not-todistant past scale modelers wanted interior detailing faced problem servo location space large servos ordinarily mounted near center gravity interfered cabin cockpit detail because also location passengers Four five cumbersome heavy servos hidden view often meant removing center-of-gravity locations convenient KITCHENER-WATERLOO RALLY motor slower smaller servos use diminutive low inertia motors help decrease transit times say fast servos disrupt scale realism because mirror twitchy thumbs something positive said old servos slow unlikely unscale-like twitch occur flight nervous thumb stick really need high-speed servos modern RC outfits scale models 28 Model Aviation Innovati roach twin engines single-engine airplane pair X45 Supertigres driving prop shaft through beltsengineered Rudi Mayer pix taken Kitchener-Waterloo point usually rearward contributed tail-heavy condition respect minia tore servos solve alotofproblems can hidden under seats beneath floor Tiny integrated circuit servos use full 48 volts across motors minus small voltage drop through output transistors makes very quick response old discreet component servos 24 volts I-irs OT trw otars ulun i-OKKar UV Iii pianes TO TiY W85 Dy DOD ijUflfl Iwo appeared K-W meet eight follow eiianca Air urueser displayed hener lterioo built Merwin Fortney has 9-foot wing span Lnarles Inamua CflDS6 rruii Super pound 1A-scala model finisheu Dulyrale Dupe ova Fiberglass cowl made up internal mold p UJOUL S S,UVV,U,U LU L,flUC IJL*tICIO UlLflLfl Hughes Spruce Goose will weigh 40 pounds Span feet Should prove flight succcessful original own experience smoothest flying plane collection slowest servos helped along control surfaces have minimum travel past have modified servo travel inserting 180- 220-ohm resistors end feedback pot stretching travel thereby reducing sensitivity around neutral increases travel time slowing servo Care must taken adding resistors avoid hitting stops some older servos having linear outputs would cause high current drain Servos rotary outputs have problem described modification part electronic trickery employ obtain smooth scale-like flight help conceal nervousness performing before judges similar effect can procured using new breed transistors such Royal Omega has non-linear stick pots Plastic carbon instrument potentiometer resistance tapered center make servos less sensitive near neutral yet servo travel same standard ideal situation scale mod eling often necessary employ greater control surface movement ground handling especially tail-dragger aircraft yet would like small servo travel around neutral transmitter scale flier can have cake eat too ratio between servo travel trim travel can altered suit planes flight characteristics ratio can visually checked means expanded-scale voltmeter front panel feature avoids prob lem found some scale planes less control surface travel would desirable impractical change because linkages buried scale structure Omega also includes mixer option modelers building prototypes using flaperons competition minded flier pro grammable timer option tiny loudspeaker counts minutes either up down warn approach time limits speaker also beeps warning battery voltage low Royal Omega includes usual features such servo reversing dual programming found other sophisticated transmitters offered kit form can calibrated scope means front panel meter have yet build first quarter-scale plane therefore really qualified answer inquiries get regarding servo size power requirements Among flying large planes diversity opinion subject Walt Moucha flying supermonstrous i-size Sopwith Pup standard servos such Kraft 15 mounted near center gravity using long balsa pushrods tail surfaces probably extreme ex ample what can done standard 29 oz torque servos Walt wins contests acrobatic model prove control marginal would like hear anyone using smaller lighter 20 oz-in torque servos large planes success Kitchener-Waterloo 1979 Scale Rally Kitchener-Waterloo Ontario Canada year blessed two days fair weather As has expected meet enormous turnout scale models 160 year just two record 1978 gathering Extraordinary exceptional planes abounded Dave Landvaters eight-year-old 40%-scale Pitts now Quadra engine performing great show plane should spectacular low altitude maneuvers including lomcevak twin OS 20 engine Canadair CL 215 Water Bomber used fighting forest fires flown Steve Gray Some its 200 flights have made water Another 40%-scale plane 10-foot-span Corben Baby Ace Jim Crawford uses pine bass entirely its structure Jim also carves props Quadra displayed handful professional quality maple mahogany examples quarter-scale Piper Super Cub Charles Chomas finished factory colors several models meet ing Precision Scale standards 11-pound all-balsa Cub used Profi 76 engine Charles found ready-made material pinked rib tapes cosmetic counter 3M product called Scotch Hair Set Tape self adhesive 350 rolls nearly serrated edges very close quarter scale Merwin Fortneys 9-foot-span Bellanca Air Cruiser covered woven fabric Micro Ion finished K&B Super Poxy another ex ample scale modelers innovation use material scale rally ideal place Continued page 112 4 January1980 29 Quarter-scale Hawker Fury work L Prentice Its 27 pounds easily handled Hustler engine Don made sacrifice scale accuracy favor flying changing airfoil symmetrical Funnel spinner Rudi Mayers 72-in span 12-pound Tiger Moth powered HP 40 home-made belt drive no loss performance Hundreds hops minimum wear toothed belt 5.. .an, La uarc UALUlIlVU USU U pit. Tur 1U3U lage wing sparswith bass ribs Span 10 feet 40-percentscale plane covered polyester material finished acrylic paint Steve Gray prp. flight F@RICAT@R n $39 Includes Asst Pack ABS SHIPPED PREPAID VVIA UPS US ONLY dealer order direct mEEk Vacuum former plastics Easy make own cowls wheel pants canopies etc works home oven hose type vacuum cieaner Instructions assembly & use included MOLD YOUR OWN PARTS FOR PLANES BOATS CARS ETC PLABTIC Packs ASS Ptastc Sheets Fonsats Ailahees5l/aa17 Packs Only PCSPACK THICKNESSPER PACKPRICE 0201/SO 0O 0301/32 00 0453/64 00 0601/16 00 0903/32 00 AssortmentPack see below1300 AeeEe.t Pack swtasa 6 020/ 4530/3-04S 2060/ 1090 655. Aa 12O0 nO, odarad 5a Fonwk. ALL ABS wht Over 3 lbs per pack Idea Development Inc Box 7399 rk Delaware 19711 Qualified Dealer Inquiries Invited SHOW 80 chester County Center White Plains New York Dont miss 12th annual ShOW Itll biggest best ever Keep last weekend February open. 1980 WRAMs Show going largest yet Well over 150 manufacturers other ex hibiters have already signed up bring everything thats new hobby s engines radi ox accessories everything between famous Swap Shop will full operation thousands items including builtup planes almost new radios engines on something just about everyone Westchester County Center centr6ity located city White Piains NY. intersection Nt tt0 Central Park Aye Bronx River Parkway White Plains just 22 mites north 01 NYC StatIc Competition Make sure latest creation finished up polished youll have chance take home dozens trophies fered events wwi PO5TV/W lMiIitayI POSTWW lNon-Mititarol PATtERN SPORT 51 PLANE OLD TIMERS SPORT PYLON GLIDERS HELICOPTERS SCALE n/C ROATS RACING n/C OGATS STANO-OPF SCALE JUNIOR EVENTS h/C CARS OESTIN-SHOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become 01 malor show attractions thousands 01 individual items changing hands help eliminate registration crush 1980 Swap Shop will hsne special pre-registra lion line tot have com pleted pre-registration form receine lorms send selfaddressed stamped envelope John lsbiatef 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because increased volume 01 items being brought Swap Shop combined space limita tions builtup model will accepted Swap Shop regis tranl further information write Larry OiRubbo 167 Lindsey Ave Buchanan NY 10511 914 739-2827 WESTCHESTER RADIO AEROMODELERS INC February 2 3/24 1OAMto6 PM hope last yes opportunity engaging friendly competition number priority people fantastic friendly relationships spite language barriers social differences opportunity see new lands experience new things yes driving left side road spend hilarious evening JeffHead Squirrel Tracy see unique wildlife reserves experience beauty mountainous Drunkensberg spend pleasant hours Braais cookouts make new friends wonderful South Africans So bittersweet farewell say goodbye special ones come mean much climb aboard 747 trip back reality Thank South Africa memorable experiences life RC Scale/Wischer continued page 29 gather ideas future construction projects es peciafly someone search new materials quarter-scale Hawker Fury Don Prentice foam-float kit manufacturer used funnel its spinner Don used Hustler engine 27-pound Fury foam wings cap strips beneath covering simulate rib locations Stars Club Olean gain present force first two projected 10 Fokker D-VIII Quadra-powered monsters designed Bob Dunn servos located near CG wires pulleys operating control surfaces including ailerons Bob uses all-wood turned wheels tires scale shock absorption cross axle also carves 20-8 maple props Finish latex acrylic flat paint Another Stars Jim Messer kits quarter-scale Ercoupe has found way keep plane free gas spits Quadra carburetor has added copper plumbing elI faces forward ram effect held place cyanoacrylate Ercoupe consistent performers present innovative scale modelers member host Flying Dutchmen Club Rudi Mayer flies 72 span 12-pound Tiger Moth HP 40 engine home made belt drive Rudi gets phenomenal life belts hundreds flights years service means proper application flywheel now process developing twin engine Supertigre X45 installation quarter-scale DeHavilland Chipmunk engines mounted side-by-side slightly behind Two toothed belts reduction ratio 1 1 drive single prop shaft turns three ball bearings Rudi demonstrated powerplant has twin tuned 112 Model Aviation WEST5A,NIITRAFW/TOdfNCANO _- - ~nrT no,,AWo ISA N5555 SSESSfl5SKISG w AAT ASR STATION ,0 pipes will lead exit fuselage bottom vibration level very low order get sufficient flywheel mass smootlmess long belt life reduce overall length unit flywheel has its outer periphery grooved second wheel meshes Participants urged bring unfinished pro jects Scale Rally several appeared enterprise three Flying Dutchmen Club members 8-engine Hughes Spruce Goose flying boat 16-foot span Power will eight 0S 25 engines projected weight 40 pounds Foam wings covered 1/16 hardwood veneer Fuselage balsa Skip Mast displayed unfinished Lockheed cules Cl 30 will use four K&B 35 engines Construction balsa foam fuselage wings Information Source Leo J Kohn old time modeler aviation writer historian photog rapher has wealth information 45000 plane photos available reasonable prices scale modelers search documenta tion photos 2 X 4W size arranged packs varying quantity few several dozen per pack average price per photo 24 less would cost take own can find plane can get As example Douglas DC-3 photos can 23 different packs arranged ac cording airline additional four packs C-47 military version Some DC-3 packs have few four photos United Air line pack contains abundant 48 actual black white photos made negatives maximum detail list includes military rac ing antique airline business rotorcraft home built aerobatic sailplane classic foreign pre-1920 WW maintains large com prehensive data bank can supply informa tion details almost aircraft Being constant contact modelers search ing documentation color markings Leo gets numerous requests actual color photos WW 1920 era aircraft says modelers must depend black white photos taken state-of-the-art coexisted airplane point possible very least intensely interesting track down correct color schemes other information Color photos available various antique other aircraft types taken EAA other fly-ins usually involves two basic type everybody ends up mod eling same plane Leo also offers scale documentation service will research airplane provide copies whatever information drawings tech nical details color schemes etc can found has backlog such requests generated word among modelers fullsize aircraft restorers well has about 500 color photos feels modelers satisfied easily available color documentation denying themselves great educational opportunity such inherent part Scale hobby Leos service called Collect-Air Photos PO Box 14234 Milwaukee WI 53214 asking data CORRECTION article Cabin Fever December issue editors note stated Walt used 23%- pitch prop 130 winder turns 16-1 turns 085 FAI rubber should have read Walt used 12-in diameter prop 22-inch pitch flew 23% loop 085 FAI rubber 130 winder turns r RADIO SERVICE Futaba IRADIO SOUTH Pro Line provide fast economical in-house service Futaba Kraft Pro Line radios list satisfied Customers reads like Whos R/C competition Call Steve Helms discuss problems having present equipment AT RADIO SOUTH customer satisfaction isnt just motto Its way life Sales gines & parts Power fuel Pro-Prop 1925 East Creighton Rd acola FL 32504 478-6745 IIIISWI NUT INDI9K little piece electronic wizardry quickly easily reverses direction servo travel plugged between receiver servo will work iith positive pulse servos three four wire Connectors NOT furnished _______Available unassembled kit form assembled tested 14K104Ace Servo Reverser kit $795 14K104CAce Servo Reverser assy $1150 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 catalog include stamp reply postage Color photography became practical late 1 930s no reasonable perma nence color image until after WW II planes built before 1945 color documenta tion will need something other photo such written description Profile Publication becoming rare authentic color chips Un less color photos carefully made seldom agree actual paint samples fore useful documentation would appear AMA rules state proof may photographs drawings written references However must agreed color photo will likely have psychological advantage doubt could cast upon authenticity other kinds proof contemporary subjects irrefutable proof photo model posed prototype color patches verified aircraft owner Finding documentation finish color markings difficult tasks facing modeler chooses obscure subjects Proof accounts 16% static score Precision Scale much greater 30% Sport Scale International Stand-off Scale meet Woodvale surprising number documentations found de ficient area Judges becoming AF E/, In7] BOX SuE HIGGINSVILLE MO 64037 insistent proof furnished will likely influence choice prototype Bob Dolly Wischer RL 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 30 defied slick wing purists Dave used set modular air brakes labeled just manufactured same British company produces popular captured towhook Worrals installation neatly done Dassel-like wing though modules designed built-up wing modules designed placed between two-inch rib spacing absolute minimum amount wing alterating What makes neat installa tion module has pivoting blade similar semaphore signal blade designed overlap next module giving system very clean assembly closed Nearly fliers built-up wings used conventional hinge-type spoilers Exception Steve Works Bird Time no spoilers Towhooks Towhooks ranged January1980 113 I
Edition: Model Aviation - 1980/01
Page Numbers: 28, 29, 112, 113
RC EQUIPMENT Scale not-todistant past scale modelers wanted interior detailing faced problem servo location space large servos ordinarily mounted near center gravity interfered cabin cockpit detail because also location passengers Four five cumbersome heavy servos hidden view often meant removing center-of-gravity locations convenient KITCHENER-WATERLOO RALLY motor slower smaller servos use diminutive low inertia motors help decrease transit times say fast servos disrupt scale realism because mirror twitchy thumbs something positive said old servos slow unlikely unscale-like twitch occur flight nervous thumb stick really need high-speed servos modern RC outfits scale models 28 Model Aviation Innovati roach twin engines single-engine airplane pair X45 Supertigres driving prop shaft through beltsengineered Rudi Mayer pix taken Kitchener-Waterloo point usually rearward contributed tail-heavy condition respect minia tore servos solve alotofproblems can hidden under seats beneath floor Tiny integrated circuit servos use full 48 volts across motors minus small voltage drop through output transistors makes very quick response old discreet component servos 24 volts I-irs OT trw otars ulun i-OKKar UV Iii pianes TO TiY W85 Dy DOD ijUflfl Iwo appeared K-W meet eight follow eiianca Air urueser displayed hener lterioo built Merwin Fortney has 9-foot wing span Lnarles Inamua CflDS6 rruii Super pound 1A-scala model finisheu Dulyrale Dupe ova Fiberglass cowl made up internal mold p UJOUL S S,UVV,U,U LU L,flUC IJL*tICIO UlLflLfl Hughes Spruce Goose will weigh 40 pounds Span feet Should prove flight succcessful original own experience smoothest flying plane collection slowest servos helped along control surfaces have minimum travel past have modified servo travel inserting 180- 220-ohm resistors end feedback pot stretching travel thereby reducing sensitivity around neutral increases travel time slowing servo Care must taken adding resistors avoid hitting stops some older servos having linear outputs would cause high current drain Servos rotary outputs have problem described modification part electronic trickery employ obtain smooth scale-like flight help conceal nervousness performing before judges similar effect can procured using new breed transistors such Royal Omega has non-linear stick pots Plastic carbon instrument potentiometer resistance tapered center make servos less sensitive near neutral yet servo travel same standard ideal situation scale mod eling often necessary employ greater control surface movement ground handling especially tail-dragger aircraft yet would like small servo travel around neutral transmitter scale flier can have cake eat too ratio between servo travel trim travel can altered suit planes flight characteristics ratio can visually checked means expanded-scale voltmeter front panel feature avoids prob lem found some scale planes less control surface travel would desirable impractical change because linkages buried scale structure Omega also includes mixer option modelers building prototypes using flaperons competition minded flier pro grammable timer option tiny loudspeaker counts minutes either up down warn approach time limits speaker also beeps warning battery voltage low Royal Omega includes usual features such servo reversing dual programming found other sophisticated transmitters offered kit form can calibrated scope means front panel meter have yet build first quarter-scale plane therefore really qualified answer inquiries get regarding servo size power requirements Among flying large planes diversity opinion subject Walt Moucha flying supermonstrous i-size Sopwith Pup standard servos such Kraft 15 mounted near center gravity using long balsa pushrods tail surfaces probably extreme ex ample what can done standard 29 oz torque servos Walt wins contests acrobatic model prove control marginal would like hear anyone using smaller lighter 20 oz-in torque servos large planes success Kitchener-Waterloo 1979 Scale Rally Kitchener-Waterloo Ontario Canada year blessed two days fair weather As has expected meet enormous turnout scale models 160 year just two record 1978 gathering Extraordinary exceptional planes abounded Dave Landvaters eight-year-old 40%-scale Pitts now Quadra engine performing great show plane should spectacular low altitude maneuvers including lomcevak twin OS 20 engine Canadair CL 215 Water Bomber used fighting forest fires flown Steve Gray Some its 200 flights have made water Another 40%-scale plane 10-foot-span Corben Baby Ace Jim Crawford uses pine bass entirely its structure Jim also carves props Quadra displayed handful professional quality maple mahogany examples quarter-scale Piper Super Cub Charles Chomas finished factory colors several models meet ing Precision Scale standards 11-pound all-balsa Cub used Profi 76 engine Charles found ready-made material pinked rib tapes cosmetic counter 3M product called Scotch Hair Set Tape self adhesive 350 rolls nearly serrated edges very close quarter scale Merwin Fortneys 9-foot-span Bellanca Air Cruiser covered woven fabric Micro Ion finished K&B Super Poxy another ex ample scale modelers innovation use material scale rally ideal place Continued page 112 4 January1980 29 Quarter-scale Hawker Fury work L Prentice Its 27 pounds easily handled Hustler engine Don made sacrifice scale accuracy favor flying changing airfoil symmetrical Funnel spinner Rudi Mayers 72-in span 12-pound Tiger Moth powered HP 40 home-made belt drive no loss performance Hundreds hops minimum wear toothed belt 5.. .an, La uarc UALUlIlVU USU U pit. Tur 1U3U lage wing sparswith bass ribs Span 10 feet 40-percentscale plane covered polyester material finished acrylic paint Steve Gray prp. flight F@RICAT@R n $39 Includes Asst Pack ABS SHIPPED PREPAID VVIA UPS US ONLY dealer order direct mEEk Vacuum former plastics Easy make own cowls wheel pants canopies etc works home oven hose type vacuum cieaner Instructions assembly & use included MOLD YOUR OWN PARTS FOR PLANES BOATS CARS ETC PLABTIC Packs ASS Ptastc Sheets Fonsats Ailahees5l/aa17 Packs Only PCSPACK THICKNESSPER PACKPRICE 0201/SO 0O 0301/32 00 0453/64 00 0601/16 00 0903/32 00 AssortmentPack see below1300 AeeEe.t Pack swtasa 6 020/ 4530/3-04S 2060/ 1090 655. Aa 12O0 nO, odarad 5a Fonwk. ALL ABS wht Over 3 lbs per pack Idea Development Inc Box 7399 rk Delaware 19711 Qualified Dealer Inquiries Invited SHOW 80 chester County Center White Plains New York Dont miss 12th annual ShOW Itll biggest best ever Keep last weekend February open. 1980 WRAMs Show going largest yet Well over 150 manufacturers other ex hibiters have already signed up bring everything thats new hobby s engines radi ox accessories everything between famous Swap Shop will full operation thousands items including builtup planes almost new radios engines on something just about everyone Westchester County Center centr6ity located city White Piains NY. intersection Nt tt0 Central Park Aye Bronx River Parkway White Plains just 22 mites north 01 NYC StatIc Competition Make sure latest creation finished up polished youll have chance take home dozens trophies fered events wwi PO5TV/W lMiIitayI POSTWW lNon-Mititarol PATtERN SPORT 51 PLANE OLD TIMERS SPORT PYLON GLIDERS HELICOPTERS SCALE n/C ROATS RACING n/C OGATS STANO-OPF SCALE JUNIOR EVENTS h/C CARS OESTIN-SHOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become 01 malor show attractions thousands 01 individual items changing hands help eliminate registration crush 1980 Swap Shop will hsne special pre-registra lion line tot have com pleted pre-registration form receine lorms send selfaddressed stamped envelope John lsbiatef 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because increased volume 01 items being brought Swap Shop combined space limita tions builtup model will accepted Swap Shop regis tranl further information write Larry OiRubbo 167 Lindsey Ave Buchanan NY 10511 914 739-2827 WESTCHESTER RADIO AEROMODELERS INC February 2 3/24 1OAMto6 PM hope last yes opportunity engaging friendly competition number priority people fantastic friendly relationships spite language barriers social differences opportunity see new lands experience new things yes driving left side road spend hilarious evening JeffHead Squirrel Tracy see unique wildlife reserves experience beauty mountainous Drunkensberg spend pleasant hours Braais cookouts make new friends wonderful South Africans So bittersweet farewell say goodbye special ones come mean much climb aboard 747 trip back reality Thank South Africa memorable experiences life RC Scale/Wischer continued page 29 gather ideas future construction projects es peciafly someone search new materials quarter-scale Hawker Fury Don Prentice foam-float kit manufacturer used funnel its spinner Don used Hustler engine 27-pound Fury foam wings cap strips beneath covering simulate rib locations Stars Club Olean gain present force first two projected 10 Fokker D-VIII Quadra-powered monsters designed Bob Dunn servos located near CG wires pulleys operating control surfaces including ailerons Bob uses all-wood turned wheels tires scale shock absorption cross axle also carves 20-8 maple props Finish latex acrylic flat paint Another Stars Jim Messer kits quarter-scale Ercoupe has found way keep plane free gas spits Quadra carburetor has added copper plumbing elI faces forward ram effect held place cyanoacrylate Ercoupe consistent performers present innovative scale modelers member host Flying Dutchmen Club Rudi Mayer flies 72 span 12-pound Tiger Moth HP 40 engine home made belt drive Rudi gets phenomenal life belts hundreds flights years service means proper application flywheel now process developing twin engine Supertigre X45 installation quarter-scale DeHavilland Chipmunk engines mounted side-by-side slightly behind Two toothed belts reduction ratio 1 1 drive single prop shaft turns three ball bearings Rudi demonstrated powerplant has twin tuned 112 Model Aviation WEST5A,NIITRAFW/TOdfNCANO _- - ~nrT no,,AWo ISA N5555 SSESSfl5SKISG w AAT ASR STATION ,0 pipes will lead exit fuselage bottom vibration level very low order get sufficient flywheel mass smootlmess long belt life reduce overall length unit flywheel has its outer periphery grooved second wheel meshes Participants urged bring unfinished pro jects Scale Rally several appeared enterprise three Flying Dutchmen Club members 8-engine Hughes Spruce Goose flying boat 16-foot span Power will eight 0S 25 engines projected weight 40 pounds Foam wings covered 1/16 hardwood veneer Fuselage balsa Skip Mast displayed unfinished Lockheed cules Cl 30 will use four K&B 35 engines Construction balsa foam fuselage wings Information Source Leo J Kohn old time modeler aviation writer historian photog rapher has wealth information 45000 plane photos available reasonable prices scale modelers search documenta tion photos 2 X 4W size arranged packs varying quantity few several dozen per pack average price per photo 24 less would cost take own can find plane can get As example Douglas DC-3 photos can 23 different packs arranged ac cording airline additional four packs C-47 military version Some DC-3 packs have few four photos United Air line pack contains abundant 48 actual black white photos made negatives maximum detail list includes military rac ing antique airline business rotorcraft home built aerobatic sailplane classic foreign pre-1920 WW maintains large com prehensive data bank can supply informa tion details almost aircraft Being constant contact modelers search ing documentation color markings Leo gets numerous requests actual color photos WW 1920 era aircraft says modelers must depend black white photos taken state-of-the-art coexisted airplane point possible very least intensely interesting track down correct color schemes other information Color photos available various antique other aircraft types taken EAA other fly-ins usually involves two basic type everybody ends up mod eling same plane Leo also offers scale documentation service will research airplane provide copies whatever information drawings tech nical details color schemes etc can found has backlog such requests generated word among modelers fullsize aircraft restorers well has about 500 color photos feels modelers satisfied easily available color documentation denying themselves great educational opportunity such inherent part Scale hobby Leos service called Collect-Air Photos PO Box 14234 Milwaukee WI 53214 asking data CORRECTION article Cabin Fever December issue editors note stated Walt used 23%- pitch prop 130 winder turns 16-1 turns 085 FAI rubber should have read Walt used 12-in diameter prop 22-inch pitch flew 23% loop 085 FAI rubber 130 winder turns r RADIO SERVICE Futaba IRADIO SOUTH Pro Line provide fast economical in-house service Futaba Kraft Pro Line radios list satisfied Customers reads like Whos R/C competition Call Steve Helms discuss problems having present equipment AT RADIO SOUTH customer satisfaction isnt just motto Its way life Sales gines & parts Power fuel Pro-Prop 1925 East Creighton Rd acola FL 32504 478-6745 IIIISWI NUT INDI9K little piece electronic wizardry quickly easily reverses direction servo travel plugged between receiver servo will work iith positive pulse servos three four wire Connectors NOT furnished _______Available unassembled kit form assembled tested 14K104Ace Servo Reverser kit $795 14K104CAce Servo Reverser assy $1150 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 catalog include stamp reply postage Color photography became practical late 1 930s no reasonable perma nence color image until after WW II planes built before 1945 color documenta tion will need something other photo such written description Profile Publication becoming rare authentic color chips Un less color photos carefully made seldom agree actual paint samples fore useful documentation would appear AMA rules state proof may photographs drawings written references However must agreed color photo will likely have psychological advantage doubt could cast upon authenticity other kinds proof contemporary subjects irrefutable proof photo model posed prototype color patches verified aircraft owner Finding documentation finish color markings difficult tasks facing modeler chooses obscure subjects Proof accounts 16% static score Precision Scale much greater 30% Sport Scale International Stand-off Scale meet Woodvale surprising number documentations found de ficient area Judges becoming AF E/, In7] BOX SuE HIGGINSVILLE MO 64037 insistent proof furnished will likely influence choice prototype Bob Dolly Wischer RL 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 30 defied slick wing purists Dave used set modular air brakes labeled just manufactured same British company produces popular captured towhook Worrals installation neatly done Dassel-like wing though modules designed built-up wing modules designed placed between two-inch rib spacing absolute minimum amount wing alterating What makes neat installa tion module has pivoting blade similar semaphore signal blade designed overlap next module giving system very clean assembly closed Nearly fliers built-up wings used conventional hinge-type spoilers Exception Steve Works Bird Time no spoilers Towhooks Towhooks ranged January1980 113 I
Edition: Model Aviation - 1980/01
Page Numbers: 28, 29, 112, 113
RC EQUIPMENT Scale not-todistant past scale modelers wanted interior detailing faced problem servo location space large servos ordinarily mounted near center gravity interfered cabin cockpit detail because also location passengers Four five cumbersome heavy servos hidden view often meant removing center-of-gravity locations convenient KITCHENER-WATERLOO RALLY motor slower smaller servos use diminutive low inertia motors help decrease transit times say fast servos disrupt scale realism because mirror twitchy thumbs something positive said old servos slow unlikely unscale-like twitch occur flight nervous thumb stick really need high-speed servos modern RC outfits scale models 28 Model Aviation Innovati roach twin engines single-engine airplane pair X45 Supertigres driving prop shaft through beltsengineered Rudi Mayer pix taken Kitchener-Waterloo point usually rearward contributed tail-heavy condition respect minia tore servos solve alotofproblems can hidden under seats beneath floor Tiny integrated circuit servos use full 48 volts across motors minus small voltage drop through output transistors makes very quick response old discreet component servos 24 volts I-irs OT trw otars ulun i-OKKar UV Iii pianes TO TiY W85 Dy DOD ijUflfl Iwo appeared K-W meet eight follow eiianca Air urueser displayed hener lterioo built Merwin Fortney has 9-foot wing span Lnarles Inamua CflDS6 rruii Super pound 1A-scala model finisheu Dulyrale Dupe ova Fiberglass cowl made up internal mold p UJOUL S S,UVV,U,U LU L,flUC IJL*tICIO UlLflLfl Hughes Spruce Goose will weigh 40 pounds Span feet Should prove flight succcessful original own experience smoothest flying plane collection slowest servos helped along control surfaces have minimum travel past have modified servo travel inserting 180- 220-ohm resistors end feedback pot stretching travel thereby reducing sensitivity around neutral increases travel time slowing servo Care must taken adding resistors avoid hitting stops some older servos having linear outputs would cause high current drain Servos rotary outputs have problem described modification part electronic trickery employ obtain smooth scale-like flight help conceal nervousness performing before judges similar effect can procured using new breed transistors such Royal Omega has non-linear stick pots Plastic carbon instrument potentiometer resistance tapered center make servos less sensitive near neutral yet servo travel same standard ideal situation scale mod eling often necessary employ greater control surface movement ground handling especially tail-dragger aircraft yet would like small servo travel around neutral transmitter scale flier can have cake eat too ratio between servo travel trim travel can altered suit planes flight characteristics ratio can visually checked means expanded-scale voltmeter front panel feature avoids prob lem found some scale planes less control surface travel would desirable impractical change because linkages buried scale structure Omega also includes mixer option modelers building prototypes using flaperons competition minded flier pro grammable timer option tiny loudspeaker counts minutes either up down warn approach time limits speaker also beeps warning battery voltage low Royal Omega includes usual features such servo reversing dual programming found other sophisticated transmitters offered kit form can calibrated scope means front panel meter have yet build first quarter-scale plane therefore really qualified answer inquiries get regarding servo size power requirements Among flying large planes diversity opinion subject Walt Moucha flying supermonstrous i-size Sopwith Pup standard servos such Kraft 15 mounted near center gravity using long balsa pushrods tail surfaces probably extreme ex ample what can done standard 29 oz torque servos Walt wins contests acrobatic model prove control marginal would like hear anyone using smaller lighter 20 oz-in torque servos large planes success Kitchener-Waterloo 1979 Scale Rally Kitchener-Waterloo Ontario Canada year blessed two days fair weather As has expected meet enormous turnout scale models 160 year just two record 1978 gathering Extraordinary exceptional planes abounded Dave Landvaters eight-year-old 40%-scale Pitts now Quadra engine performing great show plane should spectacular low altitude maneuvers including lomcevak twin OS 20 engine Canadair CL 215 Water Bomber used fighting forest fires flown Steve Gray Some its 200 flights have made water Another 40%-scale plane 10-foot-span Corben Baby Ace Jim Crawford uses pine bass entirely its structure Jim also carves props Quadra displayed handful professional quality maple mahogany examples quarter-scale Piper Super Cub Charles Chomas finished factory colors several models meet ing Precision Scale standards 11-pound all-balsa Cub used Profi 76 engine Charles found ready-made material pinked rib tapes cosmetic counter 3M product called Scotch Hair Set Tape self adhesive 350 rolls nearly serrated edges very close quarter scale Merwin Fortneys 9-foot-span Bellanca Air Cruiser covered woven fabric Micro Ion finished K&B Super Poxy another ex ample scale modelers innovation use material scale rally ideal place Continued page 112 4 January1980 29 Quarter-scale Hawker Fury work L Prentice Its 27 pounds easily handled Hustler engine Don made sacrifice scale accuracy favor flying changing airfoil symmetrical Funnel spinner Rudi Mayers 72-in span 12-pound Tiger Moth powered HP 40 home-made belt drive no loss performance Hundreds hops minimum wear toothed belt 5.. .an, La uarc UALUlIlVU USU U pit. Tur 1U3U lage wing sparswith bass ribs Span 10 feet 40-percentscale plane covered polyester material finished acrylic paint Steve Gray prp. flight F@RICAT@R n $39 Includes Asst Pack ABS SHIPPED PREPAID VVIA UPS US ONLY dealer order direct mEEk Vacuum former plastics Easy make own cowls wheel pants canopies etc works home oven hose type vacuum cieaner Instructions assembly & use included MOLD YOUR OWN PARTS FOR PLANES BOATS CARS ETC PLABTIC Packs ASS Ptastc Sheets Fonsats Ailahees5l/aa17 Packs Only PCSPACK THICKNESSPER PACKPRICE 0201/SO 0O 0301/32 00 0453/64 00 0601/16 00 0903/32 00 AssortmentPack see below1300 AeeEe.t Pack swtasa 6 020/ 4530/3-04S 2060/ 1090 655. Aa 12O0 nO, odarad 5a Fonwk. ALL ABS wht Over 3 lbs per pack Idea Development Inc Box 7399 rk Delaware 19711 Qualified Dealer Inquiries Invited SHOW 80 chester County Center White Plains New York Dont miss 12th annual ShOW Itll biggest best ever Keep last weekend February open. 1980 WRAMs Show going largest yet Well over 150 manufacturers other ex hibiters have already signed up bring everything thats new hobby s engines radi ox accessories everything between famous Swap Shop will full operation thousands items including builtup planes almost new radios engines on something just about everyone Westchester County Center centr6ity located city White Piains NY. intersection Nt tt0 Central Park Aye Bronx River Parkway White Plains just 22 mites north 01 NYC StatIc Competition Make sure latest creation finished up polished youll have chance take home dozens trophies fered events wwi PO5TV/W lMiIitayI POSTWW lNon-Mititarol PATtERN SPORT 51 PLANE OLD TIMERS SPORT PYLON GLIDERS HELICOPTERS SCALE n/C ROATS RACING n/C OGATS STANO-OPF SCALE JUNIOR EVENTS h/C CARS OESTIN-SHOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become 01 malor show attractions thousands 01 individual items changing hands help eliminate registration crush 1980 Swap Shop will hsne special pre-registra lion line tot have com pleted pre-registration form receine lorms send selfaddressed stamped envelope John lsbiatef 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because increased volume 01 items being brought Swap Shop combined space limita tions builtup model will accepted Swap Shop regis tranl further information write Larry OiRubbo 167 Lindsey Ave Buchanan NY 10511 914 739-2827 WESTCHESTER RADIO AEROMODELERS INC February 2 3/24 1OAMto6 PM hope last yes opportunity engaging friendly competition number priority people fantastic friendly relationships spite language barriers social differences opportunity see new lands experience new things yes driving left side road spend hilarious evening JeffHead Squirrel Tracy see unique wildlife reserves experience beauty mountainous Drunkensberg spend pleasant hours Braais cookouts make new friends wonderful South Africans So bittersweet farewell say goodbye special ones come mean much climb aboard 747 trip back reality Thank South Africa memorable experiences life RC Scale/Wischer continued page 29 gather ideas future construction projects es peciafly someone search new materials quarter-scale Hawker Fury Don Prentice foam-float kit manufacturer used funnel its spinner Don used Hustler engine 27-pound Fury foam wings cap strips beneath covering simulate rib locations Stars Club Olean gain present force first two projected 10 Fokker D-VIII Quadra-powered monsters designed Bob Dunn servos located near CG wires pulleys operating control surfaces including ailerons Bob uses all-wood turned wheels tires scale shock absorption cross axle also carves 20-8 maple props Finish latex acrylic flat paint Another Stars Jim Messer kits quarter-scale Ercoupe has found way keep plane free gas spits Quadra carburetor has added copper plumbing elI faces forward ram effect held place cyanoacrylate Ercoupe consistent performers present innovative scale modelers member host Flying Dutchmen Club Rudi Mayer flies 72 span 12-pound Tiger Moth HP 40 engine home made belt drive Rudi gets phenomenal life belts hundreds flights years service means proper application flywheel now process developing twin engine Supertigre X45 installation quarter-scale DeHavilland Chipmunk engines mounted side-by-side slightly behind Two toothed belts reduction ratio 1 1 drive single prop shaft turns three ball bearings Rudi demonstrated powerplant has twin tuned 112 Model Aviation WEST5A,NIITRAFW/TOdfNCANO _- - ~nrT no,,AWo ISA N5555 SSESSfl5SKISG w AAT ASR STATION ,0 pipes will lead exit fuselage bottom vibration level very low order get sufficient flywheel mass smootlmess long belt life reduce overall length unit flywheel has its outer periphery grooved second wheel meshes Participants urged bring unfinished pro jects Scale Rally several appeared enterprise three Flying Dutchmen Club members 8-engine Hughes Spruce Goose flying boat 16-foot span Power will eight 0S 25 engines projected weight 40 pounds Foam wings covered 1/16 hardwood veneer Fuselage balsa Skip Mast displayed unfinished Lockheed cules Cl 30 will use four K&B 35 engines Construction balsa foam fuselage wings Information Source Leo J Kohn old time modeler aviation writer historian photog rapher has wealth information 45000 plane photos available reasonable prices scale modelers search documenta tion photos 2 X 4W size arranged packs varying quantity few several dozen per pack average price per photo 24 less would cost take own can find plane can get As example Douglas DC-3 photos can 23 different packs arranged ac cording airline additional four packs C-47 military version Some DC-3 packs have few four photos United Air line pack contains abundant 48 actual black white photos made negatives maximum detail list includes military rac ing antique airline business rotorcraft home built aerobatic sailplane classic foreign pre-1920 WW maintains large com prehensive data bank can supply informa tion details almost aircraft Being constant contact modelers search ing documentation color markings Leo gets numerous requests actual color photos WW 1920 era aircraft says modelers must depend black white photos taken state-of-the-art coexisted airplane point possible very least intensely interesting track down correct color schemes other information Color photos available various antique other aircraft types taken EAA other fly-ins usually involves two basic type everybody ends up mod eling same plane Leo also offers scale documentation service will research airplane provide copies whatever information drawings tech nical details color schemes etc can found has backlog such requests generated word among modelers fullsize aircraft restorers well has about 500 color photos feels modelers satisfied easily available color documentation denying themselves great educational opportunity such inherent part Scale hobby Leos service called Collect-Air Photos PO Box 14234 Milwaukee WI 53214 asking data CORRECTION article Cabin Fever December issue editors note stated Walt used 23%- pitch prop 130 winder turns 16-1 turns 085 FAI rubber should have read Walt used 12-in diameter prop 22-inch pitch flew 23% loop 085 FAI rubber 130 winder turns r RADIO SERVICE Futaba IRADIO SOUTH Pro Line provide fast economical in-house service Futaba Kraft Pro Line radios list satisfied Customers reads like Whos R/C competition Call Steve Helms discuss problems having present equipment AT RADIO SOUTH customer satisfaction isnt just motto Its way life Sales gines & parts Power fuel Pro-Prop 1925 East Creighton Rd acola FL 32504 478-6745 IIIISWI NUT INDI9K little piece electronic wizardry quickly easily reverses direction servo travel plugged between receiver servo will work iith positive pulse servos three four wire Connectors NOT furnished _______Available unassembled kit form assembled tested 14K104Ace Servo Reverser kit $795 14K104CAce Servo Reverser assy $1150 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 catalog include stamp reply postage Color photography became practical late 1 930s no reasonable perma nence color image until after WW II planes built before 1945 color documenta tion will need something other photo such written description Profile Publication becoming rare authentic color chips Un less color photos carefully made seldom agree actual paint samples fore useful documentation would appear AMA rules state proof may photographs drawings written references However must agreed color photo will likely have psychological advantage doubt could cast upon authenticity other kinds proof contemporary subjects irrefutable proof photo model posed prototype color patches verified aircraft owner Finding documentation finish color markings difficult tasks facing modeler chooses obscure subjects Proof accounts 16% static score Precision Scale much greater 30% Sport Scale International Stand-off Scale meet Woodvale surprising number documentations found de ficient area Judges becoming AF E/, In7] BOX SuE HIGGINSVILLE MO 64037 insistent proof furnished will likely influence choice prototype Bob Dolly Wischer RL 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 30 defied slick wing purists Dave used set modular air brakes labeled just manufactured same British company produces popular captured towhook Worrals installation neatly done Dassel-like wing though modules designed built-up wing modules designed placed between two-inch rib spacing absolute minimum amount wing alterating What makes neat installa tion module has pivoting blade similar semaphore signal blade designed overlap next module giving system very clean assembly closed Nearly fliers built-up wings used conventional hinge-type spoilers Exception Steve Works Bird Time no spoilers Towhooks Towhooks ranged January1980 113 I
Edition: Model Aviation - 1980/01
Page Numbers: 28, 29, 112, 113
RC EQUIPMENT Scale not-todistant past scale modelers wanted interior detailing faced problem servo location space large servos ordinarily mounted near center gravity interfered cabin cockpit detail because also location passengers Four five cumbersome heavy servos hidden view often meant removing center-of-gravity locations convenient KITCHENER-WATERLOO RALLY motor slower smaller servos use diminutive low inertia motors help decrease transit times say fast servos disrupt scale realism because mirror twitchy thumbs something positive said old servos slow unlikely unscale-like twitch occur flight nervous thumb stick really need high-speed servos modern RC outfits scale models 28 Model Aviation Innovati roach twin engines single-engine airplane pair X45 Supertigres driving prop shaft through beltsengineered Rudi Mayer pix taken Kitchener-Waterloo point usually rearward contributed tail-heavy condition respect minia tore servos solve alotofproblems can hidden under seats beneath floor Tiny integrated circuit servos use full 48 volts across motors minus small voltage drop through output transistors makes very quick response old discreet component servos 24 volts I-irs OT trw otars ulun i-OKKar UV Iii pianes TO TiY W85 Dy DOD ijUflfl Iwo appeared K-W meet eight follow eiianca Air urueser displayed hener lterioo built Merwin Fortney has 9-foot wing span Lnarles Inamua CflDS6 rruii Super pound 1A-scala model finisheu Dulyrale Dupe ova Fiberglass cowl made up internal mold p UJOUL S S,UVV,U,U LU L,flUC IJL*tICIO UlLflLfl Hughes Spruce Goose will weigh 40 pounds Span feet Should prove flight succcessful original own experience smoothest flying plane collection slowest servos helped along control surfaces have minimum travel past have modified servo travel inserting 180- 220-ohm resistors end feedback pot stretching travel thereby reducing sensitivity around neutral increases travel time slowing servo Care must taken adding resistors avoid hitting stops some older servos having linear outputs would cause high current drain Servos rotary outputs have problem described modification part electronic trickery employ obtain smooth scale-like flight help conceal nervousness performing before judges similar effect can procured using new breed transistors such Royal Omega has non-linear stick pots Plastic carbon instrument potentiometer resistance tapered center make servos less sensitive near neutral yet servo travel same standard ideal situation scale mod eling often necessary employ greater control surface movement ground handling especially tail-dragger aircraft yet would like small servo travel around neutral transmitter scale flier can have cake eat too ratio between servo travel trim travel can altered suit planes flight characteristics ratio can visually checked means expanded-scale voltmeter front panel feature avoids prob lem found some scale planes less control surface travel would desirable impractical change because linkages buried scale structure Omega also includes mixer option modelers building prototypes using flaperons competition minded flier pro grammable timer option tiny loudspeaker counts minutes either up down warn approach time limits speaker also beeps warning battery voltage low Royal Omega includes usual features such servo reversing dual programming found other sophisticated transmitters offered kit form can calibrated scope means front panel meter have yet build first quarter-scale plane therefore really qualified answer inquiries get regarding servo size power requirements Among flying large planes diversity opinion subject Walt Moucha flying supermonstrous i-size Sopwith Pup standard servos such Kraft 15 mounted near center gravity using long balsa pushrods tail surfaces probably extreme ex ample what can done standard 29 oz torque servos Walt wins contests acrobatic model prove control marginal would like hear anyone using smaller lighter 20 oz-in torque servos large planes success Kitchener-Waterloo 1979 Scale Rally Kitchener-Waterloo Ontario Canada year blessed two days fair weather As has expected meet enormous turnout scale models 160 year just two record 1978 gathering Extraordinary exceptional planes abounded Dave Landvaters eight-year-old 40%-scale Pitts now Quadra engine performing great show plane should spectacular low altitude maneuvers including lomcevak twin OS 20 engine Canadair CL 215 Water Bomber used fighting forest fires flown Steve Gray Some its 200 flights have made water Another 40%-scale plane 10-foot-span Corben Baby Ace Jim Crawford uses pine bass entirely its structure Jim also carves props Quadra displayed handful professional quality maple mahogany examples quarter-scale Piper Super Cub Charles Chomas finished factory colors several models meet ing Precision Scale standards 11-pound all-balsa Cub used Profi 76 engine Charles found ready-made material pinked rib tapes cosmetic counter 3M product called Scotch Hair Set Tape self adhesive 350 rolls nearly serrated edges very close quarter scale Merwin Fortneys 9-foot-span Bellanca Air Cruiser covered woven fabric Micro Ion finished K&B Super Poxy another ex ample scale modelers innovation use material scale rally ideal place Continued page 112 4 January1980 29 Quarter-scale Hawker Fury work L Prentice Its 27 pounds easily handled Hustler engine Don made sacrifice scale accuracy favor flying changing airfoil symmetrical Funnel spinner Rudi Mayers 72-in span 12-pound Tiger Moth powered HP 40 home-made belt drive no loss performance Hundreds hops minimum wear toothed belt 5.. .an, La uarc UALUlIlVU USU U pit. Tur 1U3U lage wing sparswith bass ribs Span 10 feet 40-percentscale plane covered polyester material finished acrylic paint Steve Gray prp. flight F@RICAT@R n $39 Includes Asst Pack ABS SHIPPED PREPAID VVIA UPS US ONLY dealer order direct mEEk Vacuum former plastics Easy make own cowls wheel pants canopies etc works home oven hose type vacuum cieaner Instructions assembly & use included MOLD YOUR OWN PARTS FOR PLANES BOATS CARS ETC PLABTIC Packs ASS Ptastc Sheets Fonsats Ailahees5l/aa17 Packs Only PCSPACK THICKNESSPER PACKPRICE 0201/SO 0O 0301/32 00 0453/64 00 0601/16 00 0903/32 00 AssortmentPack see below1300 AeeEe.t Pack swtasa 6 020/ 4530/3-04S 2060/ 1090 655. Aa 12O0 nO, odarad 5a Fonwk. ALL ABS wht Over 3 lbs per pack Idea Development Inc Box 7399 rk Delaware 19711 Qualified Dealer Inquiries Invited SHOW 80 chester County Center White Plains New York Dont miss 12th annual ShOW Itll biggest best ever Keep last weekend February open. 1980 WRAMs Show going largest yet Well over 150 manufacturers other ex hibiters have already signed up bring everything thats new hobby s engines radi ox accessories everything between famous Swap Shop will full operation thousands items including builtup planes almost new radios engines on something just about everyone Westchester County Center centr6ity located city White Piains NY. intersection Nt tt0 Central Park Aye Bronx River Parkway White Plains just 22 mites north 01 NYC StatIc Competition Make sure latest creation finished up polished youll have chance take home dozens trophies fered events wwi PO5TV/W lMiIitayI POSTWW lNon-Mititarol PATtERN SPORT 51 PLANE OLD TIMERS SPORT PYLON GLIDERS HELICOPTERS SCALE n/C ROATS RACING n/C OGATS STANO-OPF SCALE JUNIOR EVENTS h/C CARS OESTIN-SHOW Judging takes place Sunday afternoon Entries accepted until 12 Noon Sunday SWAP SHOP WRAMs Swap Shop has become 01 malor show attractions thousands 01 individual items changing hands help eliminate registration crush 1980 Swap Shop will hsne special pre-registra lion line tot have com pleted pre-registration form receine lorms send selfaddressed stamped envelope John lsbiatef 4 Devon Rd Larchmont NY 10528 SPECIAL NOTE Because increased volume 01 items being brought Swap Shop combined space limita tions builtup model will accepted Swap Shop regis tranl further information write Larry OiRubbo 167 Lindsey Ave Buchanan NY 10511 914 739-2827 WESTCHESTER RADIO AEROMODELERS INC February 2 3/24 1OAMto6 PM hope last yes opportunity engaging friendly competition number priority people fantastic friendly relationships spite language barriers social differences opportunity see new lands experience new things yes driving left side road spend hilarious evening JeffHead Squirrel Tracy see unique wildlife reserves experience beauty mountainous Drunkensberg spend pleasant hours Braais cookouts make new friends wonderful South Africans So bittersweet farewell say goodbye special ones come mean much climb aboard 747 trip back reality Thank South Africa memorable experiences life RC Scale/Wischer continued page 29 gather ideas future construction projects es peciafly someone search new materials quarter-scale Hawker Fury Don Prentice foam-float kit manufacturer used funnel its spinner Don used Hustler engine 27-pound Fury foam wings cap strips beneath covering simulate rib locations Stars Club Olean gain present force first two projected 10 Fokker D-VIII Quadra-powered monsters designed Bob Dunn servos located near CG wires pulleys operating control surfaces including ailerons Bob uses all-wood turned wheels tires scale shock absorption cross axle also carves 20-8 maple props Finish latex acrylic flat paint Another Stars Jim Messer kits quarter-scale Ercoupe has found way keep plane free gas spits Quadra carburetor has added copper plumbing elI faces forward ram effect held place cyanoacrylate Ercoupe consistent performers present innovative scale modelers member host Flying Dutchmen Club Rudi Mayer flies 72 span 12-pound Tiger Moth HP 40 engine home made belt drive Rudi gets phenomenal life belts hundreds flights years service means proper application flywheel now process developing twin engine Supertigre X45 installation quarter-scale DeHavilland Chipmunk engines mounted side-by-side slightly behind Two toothed belts reduction ratio 1 1 drive single prop shaft turns three ball bearings Rudi demonstrated powerplant has twin tuned 112 Model Aviation WEST5A,NIITRAFW/TOdfNCANO _- - ~nrT no,,AWo ISA N5555 SSESSfl5SKISG w AAT ASR STATION ,0 pipes will lead exit fuselage bottom vibration level very low order get sufficient flywheel mass smootlmess long belt life reduce overall length unit flywheel has its outer periphery grooved second wheel meshes Participants urged bring unfinished pro jects Scale Rally several appeared enterprise three Flying Dutchmen Club members 8-engine Hughes Spruce Goose flying boat 16-foot span Power will eight 0S 25 engines projected weight 40 pounds Foam wings covered 1/16 hardwood veneer Fuselage balsa Skip Mast displayed unfinished Lockheed cules Cl 30 will use four K&B 35 engines Construction balsa foam fuselage wings Information Source Leo J Kohn old time modeler aviation writer historian photog rapher has wealth information 45000 plane photos available reasonable prices scale modelers search documenta tion photos 2 X 4W size arranged packs varying quantity few several dozen per pack average price per photo 24 less would cost take own can find plane can get As example Douglas DC-3 photos can 23 different packs arranged ac cording airline additional four packs C-47 military version Some DC-3 packs have few four photos United Air line pack contains abundant 48 actual black white photos made negatives maximum detail list includes military rac ing antique airline business rotorcraft home built aerobatic sailplane classic foreign pre-1920 WW maintains large com prehensive data bank can supply informa tion details almost aircraft Being constant contact modelers search ing documentation color markings Leo gets numerous requests actual color photos WW 1920 era aircraft says modelers must depend black white photos taken state-of-the-art coexisted airplane point possible very least intensely interesting track down correct color schemes other information Color photos available various antique other aircraft types taken EAA other fly-ins usually involves two basic type everybody ends up mod eling same plane Leo also offers scale documentation service will research airplane provide copies whatever information drawings tech nical details color schemes etc can found has backlog such requests generated word among modelers fullsize aircraft restorers well has about 500 color photos feels modelers satisfied easily available color documentation denying themselves great educational opportunity such inherent part Scale hobby Leos service called Collect-Air Photos PO Box 14234 Milwaukee WI 53214 asking data CORRECTION article Cabin Fever December issue editors note stated Walt used 23%- pitch prop 130 winder turns 16-1 turns 085 FAI rubber should have read Walt used 12-in diameter prop 22-inch pitch flew 23% loop 085 FAI rubber 130 winder turns r RADIO SERVICE Futaba IRADIO SOUTH Pro Line provide fast economical in-house service Futaba Kraft Pro Line radios list satisfied Customers reads like Whos R/C competition Call Steve Helms discuss problems having present equipment AT RADIO SOUTH customer satisfaction isnt just motto Its way life Sales gines & parts Power fuel Pro-Prop 1925 East Creighton Rd acola FL 32504 478-6745 IIIISWI NUT INDI9K little piece electronic wizardry quickly easily reverses direction servo travel plugged between receiver servo will work iith positive pulse servos three four wire Connectors NOT furnished _______Available unassembled kit form assembled tested 14K104Ace Servo Reverser kit $795 14K104CAce Servo Reverser assy $1150 details send $1 latest catalog Add $50 1st Class return $1 hand ling direct orders 816 584-7121 catalog include stamp reply postage Color photography became practical late 1 930s no reasonable perma nence color image until after WW II planes built before 1945 color documenta tion will need something other photo such written description Profile Publication becoming rare authentic color chips Un less color photos carefully made seldom agree actual paint samples fore useful documentation would appear AMA rules state proof may photographs drawings written references However must agreed color photo will likely have psychological advantage doubt could cast upon authenticity other kinds proof contemporary subjects irrefutable proof photo model posed prototype color patches verified aircraft owner Finding documentation finish color markings difficult tasks facing modeler chooses obscure subjects Proof accounts 16% static score Precision Scale much greater 30% Sport Scale International Stand-off Scale meet Woodvale surprising number documentations found de ficient area Judges becoming AF E/, In7] BOX SuE HIGGINSVILLE MO 64037 insistent proof furnished will likely influence choice prototype Bob Dolly Wischer RL 1 S-221 Lapham Peak Road Delafield WI 53018 RC Soaring/Pruss continued page 30 defied slick wing purists Dave used set modular air brakes labeled just manufactured same British company produces popular captured towhook Worrals installation neatly done Dassel-like wing though modules designed built-up wing modules designed placed between two-inch rib spacing absolute minimum amount wing alterating What makes neat installa tion module has pivoting blade similar semaphore signal blade designed overlap next module giving system very clean assembly closed Nearly fliers built-up wings used conventional hinge-type spoilers Exception Steve Works Bird Time no spoilers Towhooks Towhooks ranged January1980 113 I