Radio Control Scale Bob8eDollyWischer DESIGN TECHNIQUE frequent correspondence modelers search information regarding model mechanical design evident enough has said subject scratch-building scale models drawings prototype aircraft such Peter Westburg Model Builder Paul Matt Historical Aviation Album other specialists purveying graphic information Usually apparent modelers search plane different available kit form preference planes frequently modeled availability excel lent drawings serves stimulate desire airplane distinctively dif ferent desire necessary ingredi ent recipe scratch-building other words want plane badly enough patience skill knowledge will acquired starting point design always enlargement outline drawings size model due respect need lift contain fixed bulk weight radio engine per sonal preference process mathematical approach handy electronic calculator make myriad scale factor multiplications dimensions Before age calculators used slide rule dimensions should transferred model drawing decimal-inch scale graduated increments 1/50 inch 02 metric scale graduated mil limeters order accurately use calculator output conversion fractions think transfer dimensions scale another long arduous process need commonly complete pencil drawing sign poster paper 42-in wide roll less evening includ ing interior detail such wing fuse lage structure Obviously calculator helps speed mathematical work slide rule can almost well Until recently drawings made dining table extension leaves inserted paper length could accommo date six-foot wing span now use larger work spaces made inexpensive plywood hollow-core flush birch doors three- five-foot T-square handy can made two pieces thin scrap plywood needs make parallel lines angle Tee need precise 90 degrees 26 Model Aviation Seen Rally England Old Warden airfield Messerschmitt 110 Udo Menke Germany Twin Webra Speed 91 engines tuned pipes gave spectacular performance Weight 55 pounds span 13-1/2 feet Gained 3rd place German Model Association Championships Toledo military scale entry old masters Ed Wisser Albatros DV silk dope Unusual subject Olen Trenary North American YAT-28E sport scale Its excellent finish attained using acrylic lacquer Pilot four-bladed fan dice up nicely Straightness important tight glue joint between pieces Another method enlarging use proportional dividers although likely introduce errors due its limitations divider set ratio chosen its opposite tips proportionally spaced dimensions can transferred directly use mathematics Its limitations lie translating long dimensions seem abound aircraft divider must step off numerous increments errors accumulating step Kitchener-Waterloo Scale Rally sheer size spectacular nature modeling subjects Kitchener-Water loo Rally among great fly-ins worldyet scale modelers hear com paratively little about Bob Dolly thereand ran few pix January column So asked present Rally pictures Rally means no comp pleased give mini feature third method photographic process enlargement made original drawing can quite costly time saved can make worth expense requires services commercial photographer has necessary large format cameras Continued page 98 March1979 27 small portion 158 scale models appeared Kitchener-Waterloo Scale Rally Canada As non-competitive events rallys gaining tremendous popularity would like have 1/4-scale Peashooter Bob Dunns Boeing P-26 Quadra powered duplicates markings 01 34th Pursuit Group prototype display Air Force Museum Mammoth scale Sperry Messenger scratch-built Jim Dillebough Construction scale using plywood cloth covering Quadra-powered bird spans 7 ft Bin weighs 25 pounds vvuring factory drawings before prototype planes available Jim Messer finished 1/4-scale Piper Tomahawk Powered Quad ra Bob observed superb performance looks match Quarrer-scaic Ieupori inc wors coo Dunn member STARS club NY 0112 planes brought Rally club Quadra case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9 r HOBBYPOXY FORMULA 3 THIXOTROPIC EPOXY GLUE NOS4GS. NO RUNS. NO DRIPS. Formula 3 specially formulated gel-like viscosity allowing applied vertical surfaces thin edges other problem areas other glues just run off makes Formula 3 perfect planking building up reinforcing fillets joints sealing cracks filling holes joining poorly fitted badly die-crushed parts . hundred other things youve always wished kind glue now its made Hobbypoxy leader epoxy glues model building Formula 3 packaged two four-ounce cans has working time hour cures hard overnight IOWaN PINNCfl Division Pettit Paint co Inc 36 Pine Street Rockaway NJ 07866 down-thrust engine mounting very likely another center line panel line such top longeron will reference line use case elliptical tapered wing leading edge would useable reference another straight line will usually found absence good line have drawn basic Having developed model outline drawings methods next step sketching interior struc ture detail showing rib spar locations fuselage panel lines bulkheads time engine muffler well radio control components must hand provision can made sizes installation scale models except smallest sizes usu ally much interior space needed Precision Scale model internal volume may plentiful seems because space occupied seats instrument panels upholstery pos sibly working controls Thought must given installing radio equipment will hidden view beneath seats floors unduly disturbing desired center gravity location As planes grow larger problem diminishes structural sizes materials joining methods very fortunate having volumes magazines profusely illustrated drawings modelers showing ideas sub ject few back issues will have abundant material give fair idea course follow designing model Since modelers attempting scratchbuilt plane first time will have built kits would have accumulated few concepts very likely begun process elimination separates preferred ways means respect should said almost 50 years modeling have yet build two planes completely alike structurally borrow ideas add few own unique practice Areas deserve closest attention major joints located including engine mount wing landing gear tail surface attachments should strengthened plywood hardwood following usual model building practices Scale models tend toward heaviness addition much detail need shock absorbing landing March1979 99 L Ken Kindschi displays Sig Ryan Madison Wisconsin shopping mall club public relations efforts have paid dividends now have two publicly owned maintained flying Sites WHY Just fun stick FIRE BALL great engine runs *advanced ...... .. H STARTING 0 UNEXCELLED POWEP LOWEST DRAIN LONGER LIFE GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JEBSEY 07470 JINTERNATIONAL INC REPLA-TEC H MC KENZIE 1-IWY PLAN SI VIOA OREGON 974B8 GEE BEE Z DECALS ALL NUMBERS 21 SCALE & LETTERING 4 * EXCEPTi4h-t1tl THOSE OF THE WINGS GRANGE R WILLIAMS$495 PAWNER STREET SAN MARCOS CALIFORNIA 92069 gear greater extent light trainer possible gear prototype should copied making certain loads spread surrounding structure Avoid load concentrations single points 1978 Contests No single competition event has caught like Sport Scale Last year ten times sanc tioned AMA contests Sport Scale Precision Scale other scale events combined eastern US scale events midwest least breakdown follows no rallys included Radio Control total 184 Sport 165 Precision 16 Mammoth 3 Control Line total 31 Sport 20 Preci sion 11 Free Flight Outdoor total 51/ Gas 9 Rubber 15 Peanut 27Indoor total 18 Indoor 10 Peanut 8 high level participation RC Sport Scale generates much comment complaints Bob Temple Boca Raton Florida writes suggestions what would like see Stand-Off Scale 1 50-ft circle 10 feet way too small especially 8- 9-ft wing spans 2 Novice Expert same Pattern Gives newcomers better chance Once has won first place moves Expert 3 Time limit static judging less conversing between judges allowed flight should allowed static Actually nine-foot span compared six feet has wing tip 18 inches closer judges eyes change present 20-foot circle 25 feet would compensate maintain original intent rule desire greater viewing distance reaction trend Sport Scale toward general up-grading planes has happened throughout history competition modeling process improvement repeats events imposition rule changes has failed bring halt up-grading Finding good judges remains problem getting tough wont ease situation Judges regarded adversaries have no event Bob Dolly Wischer Rt 1 S-221 Lapham Peak Rd Delafield WI 53018 RC Helicopters/Chesney continued page 29 duce tail sensitivity using rate control transmitter moving tail rotor control rod toward center servo arm methods shown sketches Tail rotor sensitivity should adjusted response input positive fast cause tendency over-control Since proper control tail important successfully flying ma chine wise devote special attention T/R response set-up may elect purchase Kavan gyro make life little easier keep mind T/R control should never neglected learning fly RC helicopter T/R gyro assisted opinion difficulty main taining yaw heading helicopter due largely bad habits developed flying fixed-wing aircraft feel majority fixed-wing sport fliers de velop habit neglecting left stick Mode II throttle rudder controls fact dare say touch throttle rudder average flight therefore feel less com fortable absolute necessity controls flying helicopter sport fliers 3-channel aircraft set up rudder control ail eron stick again neglects need left stick activity point helicopters difficult fly poor habits such noted above will complicate learning process recommend fixed-wing ac tivities minimized learn helicopter controls must fly airplanes least concentrate using flight controls during fixedwing flying activitiesget comfortable left stick Next month some tips hope theyre helping let hear Dont forget meeting Toledo Show April 6 7 8 helicopter enthu siasts will meet Saturday night time place announced show Dave Chesney Rt 9 Box 62 IA Greensboro NC 27409 RC Soaring/Pruss continued page 3 1 aluminum molds allowed cure finish flawless trailing edges al sharp enough used shaving barn door type ailerons span about one-half wing have see fit believe hinge line con cave/convex joint could slip sheet notebook paper between wing aileron hinge joint hinges themselves Robarts three pe aileron ailerons driven through torque tube 5-mm wire main wing support much smaller diameter wire keeps wings aligned During same meeting between ses sions watched 1200 feet F3B compe tition held Europe guys build well fly better Although have ships seemingly traded off duration speed won contest Europe speeds phenomenal 11 seconds seems barrier US fliers Austrians turning nines Speed 25% F3B contest strategy particular task emphasis varies different fliers Frankly feel birds too speed-oriented argue success As availability models dont rush local hobby shop As Fritz put efforts secret feel club should develop own designs offering data building techniques book will available sometime late spring However club flush Fritz will travel youre willing host him pay expenses hell tell show Are still raised eyebrows out Dan Pruss Rt 2 Box 490 Plainfield IL 60544 writing advertisers mention read about Model Aviation 100 Model Aviation #H30 HOT 3 volts foster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition
Edition: Model Aviation - 1979/03
Page Numbers: 26, 27, 98, 99, 100
Radio Control Scale Bob8eDollyWischer DESIGN TECHNIQUE frequent correspondence modelers search information regarding model mechanical design evident enough has said subject scratch-building scale models drawings prototype aircraft such Peter Westburg Model Builder Paul Matt Historical Aviation Album other specialists purveying graphic information Usually apparent modelers search plane different available kit form preference planes frequently modeled availability excel lent drawings serves stimulate desire airplane distinctively dif ferent desire necessary ingredi ent recipe scratch-building other words want plane badly enough patience skill knowledge will acquired starting point design always enlargement outline drawings size model due respect need lift contain fixed bulk weight radio engine per sonal preference process mathematical approach handy electronic calculator make myriad scale factor multiplications dimensions Before age calculators used slide rule dimensions should transferred model drawing decimal-inch scale graduated increments 1/50 inch 02 metric scale graduated mil limeters order accurately use calculator output conversion fractions think transfer dimensions scale another long arduous process need commonly complete pencil drawing sign poster paper 42-in wide roll less evening includ ing interior detail such wing fuse lage structure Obviously calculator helps speed mathematical work slide rule can almost well Until recently drawings made dining table extension leaves inserted paper length could accommo date six-foot wing span now use larger work spaces made inexpensive plywood hollow-core flush birch doors three- five-foot T-square handy can made two pieces thin scrap plywood needs make parallel lines angle Tee need precise 90 degrees 26 Model Aviation Seen Rally England Old Warden airfield Messerschmitt 110 Udo Menke Germany Twin Webra Speed 91 engines tuned pipes gave spectacular performance Weight 55 pounds span 13-1/2 feet Gained 3rd place German Model Association Championships Toledo military scale entry old masters Ed Wisser Albatros DV silk dope Unusual subject Olen Trenary North American YAT-28E sport scale Its excellent finish attained using acrylic lacquer Pilot four-bladed fan dice up nicely Straightness important tight glue joint between pieces Another method enlarging use proportional dividers although likely introduce errors due its limitations divider set ratio chosen its opposite tips proportionally spaced dimensions can transferred directly use mathematics Its limitations lie translating long dimensions seem abound aircraft divider must step off numerous increments errors accumulating step Kitchener-Waterloo Scale Rally sheer size spectacular nature modeling subjects Kitchener-Water loo Rally among great fly-ins worldyet scale modelers hear com paratively little about Bob Dolly thereand ran few pix January column So asked present Rally pictures Rally means no comp pleased give mini feature third method photographic process enlargement made original drawing can quite costly time saved can make worth expense requires services commercial photographer has necessary large format cameras Continued page 98 March1979 27 small portion 158 scale models appeared Kitchener-Waterloo Scale Rally Canada As non-competitive events rallys gaining tremendous popularity would like have 1/4-scale Peashooter Bob Dunns Boeing P-26 Quadra powered duplicates markings 01 34th Pursuit Group prototype display Air Force Museum Mammoth scale Sperry Messenger scratch-built Jim Dillebough Construction scale using plywood cloth covering Quadra-powered bird spans 7 ft Bin weighs 25 pounds vvuring factory drawings before prototype planes available Jim Messer finished 1/4-scale Piper Tomahawk Powered Quad ra Bob observed superb performance looks match Quarrer-scaic Ieupori inc wors coo Dunn member STARS club NY 0112 planes brought Rally club Quadra case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9 r HOBBYPOXY FORMULA 3 THIXOTROPIC EPOXY GLUE NOS4GS. NO RUNS. NO DRIPS. Formula 3 specially formulated gel-like viscosity allowing applied vertical surfaces thin edges other problem areas other glues just run off makes Formula 3 perfect planking building up reinforcing fillets joints sealing cracks filling holes joining poorly fitted badly die-crushed parts . hundred other things youve always wished kind glue now its made Hobbypoxy leader epoxy glues model building Formula 3 packaged two four-ounce cans has working time hour cures hard overnight IOWaN PINNCfl Division Pettit Paint co Inc 36 Pine Street Rockaway NJ 07866 down-thrust engine mounting very likely another center line panel line such top longeron will reference line use case elliptical tapered wing leading edge would useable reference another straight line will usually found absence good line have drawn basic Having developed model outline drawings methods next step sketching interior struc ture detail showing rib spar locations fuselage panel lines bulkheads time engine muffler well radio control components must hand provision can made sizes installation scale models except smallest sizes usu ally much interior space needed Precision Scale model internal volume may plentiful seems because space occupied seats instrument panels upholstery pos sibly working controls Thought must given installing radio equipment will hidden view beneath seats floors unduly disturbing desired center gravity location As planes grow larger problem diminishes structural sizes materials joining methods very fortunate having volumes magazines profusely illustrated drawings modelers showing ideas sub ject few back issues will have abundant material give fair idea course follow designing model Since modelers attempting scratchbuilt plane first time will have built kits would have accumulated few concepts very likely begun process elimination separates preferred ways means respect should said almost 50 years modeling have yet build two planes completely alike structurally borrow ideas add few own unique practice Areas deserve closest attention major joints located including engine mount wing landing gear tail surface attachments should strengthened plywood hardwood following usual model building practices Scale models tend toward heaviness addition much detail need shock absorbing landing March1979 99 L Ken Kindschi displays Sig Ryan Madison Wisconsin shopping mall club public relations efforts have paid dividends now have two publicly owned maintained flying Sites WHY Just fun stick FIRE BALL great engine runs *advanced ...... .. H STARTING 0 UNEXCELLED POWEP LOWEST DRAIN LONGER LIFE GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JEBSEY 07470 JINTERNATIONAL INC REPLA-TEC H MC KENZIE 1-IWY PLAN SI VIOA OREGON 974B8 GEE BEE Z DECALS ALL NUMBERS 21 SCALE & LETTERING 4 * EXCEPTi4h-t1tl THOSE OF THE WINGS GRANGE R WILLIAMS$495 PAWNER STREET SAN MARCOS CALIFORNIA 92069 gear greater extent light trainer possible gear prototype should copied making certain loads spread surrounding structure Avoid load concentrations single points 1978 Contests No single competition event has caught like Sport Scale Last year ten times sanc tioned AMA contests Sport Scale Precision Scale other scale events combined eastern US scale events midwest least breakdown follows no rallys included Radio Control total 184 Sport 165 Precision 16 Mammoth 3 Control Line total 31 Sport 20 Preci sion 11 Free Flight Outdoor total 51/ Gas 9 Rubber 15 Peanut 27Indoor total 18 Indoor 10 Peanut 8 high level participation RC Sport Scale generates much comment complaints Bob Temple Boca Raton Florida writes suggestions what would like see Stand-Off Scale 1 50-ft circle 10 feet way too small especially 8- 9-ft wing spans 2 Novice Expert same Pattern Gives newcomers better chance Once has won first place moves Expert 3 Time limit static judging less conversing between judges allowed flight should allowed static Actually nine-foot span compared six feet has wing tip 18 inches closer judges eyes change present 20-foot circle 25 feet would compensate maintain original intent rule desire greater viewing distance reaction trend Sport Scale toward general up-grading planes has happened throughout history competition modeling process improvement repeats events imposition rule changes has failed bring halt up-grading Finding good judges remains problem getting tough wont ease situation Judges regarded adversaries have no event Bob Dolly Wischer Rt 1 S-221 Lapham Peak Rd Delafield WI 53018 RC Helicopters/Chesney continued page 29 duce tail sensitivity using rate control transmitter moving tail rotor control rod toward center servo arm methods shown sketches Tail rotor sensitivity should adjusted response input positive fast cause tendency over-control Since proper control tail important successfully flying ma chine wise devote special attention T/R response set-up may elect purchase Kavan gyro make life little easier keep mind T/R control should never neglected learning fly RC helicopter T/R gyro assisted opinion difficulty main taining yaw heading helicopter due largely bad habits developed flying fixed-wing aircraft feel majority fixed-wing sport fliers de velop habit neglecting left stick Mode II throttle rudder controls fact dare say touch throttle rudder average flight therefore feel less com fortable absolute necessity controls flying helicopter sport fliers 3-channel aircraft set up rudder control ail eron stick again neglects need left stick activity point helicopters difficult fly poor habits such noted above will complicate learning process recommend fixed-wing ac tivities minimized learn helicopter controls must fly airplanes least concentrate using flight controls during fixedwing flying activitiesget comfortable left stick Next month some tips hope theyre helping let hear Dont forget meeting Toledo Show April 6 7 8 helicopter enthu siasts will meet Saturday night time place announced show Dave Chesney Rt 9 Box 62 IA Greensboro NC 27409 RC Soaring/Pruss continued page 3 1 aluminum molds allowed cure finish flawless trailing edges al sharp enough used shaving barn door type ailerons span about one-half wing have see fit believe hinge line con cave/convex joint could slip sheet notebook paper between wing aileron hinge joint hinges themselves Robarts three pe aileron ailerons driven through torque tube 5-mm wire main wing support much smaller diameter wire keeps wings aligned During same meeting between ses sions watched 1200 feet F3B compe tition held Europe guys build well fly better Although have ships seemingly traded off duration speed won contest Europe speeds phenomenal 11 seconds seems barrier US fliers Austrians turning nines Speed 25% F3B contest strategy particular task emphasis varies different fliers Frankly feel birds too speed-oriented argue success As availability models dont rush local hobby shop As Fritz put efforts secret feel club should develop own designs offering data building techniques book will available sometime late spring However club flush Fritz will travel youre willing host him pay expenses hell tell show Are still raised eyebrows out Dan Pruss Rt 2 Box 490 Plainfield IL 60544 writing advertisers mention read about Model Aviation 100 Model Aviation #H30 HOT 3 volts foster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition
Edition: Model Aviation - 1979/03
Page Numbers: 26, 27, 98, 99, 100
Radio Control Scale Bob8eDollyWischer DESIGN TECHNIQUE frequent correspondence modelers search information regarding model mechanical design evident enough has said subject scratch-building scale models drawings prototype aircraft such Peter Westburg Model Builder Paul Matt Historical Aviation Album other specialists purveying graphic information Usually apparent modelers search plane different available kit form preference planes frequently modeled availability excel lent drawings serves stimulate desire airplane distinctively dif ferent desire necessary ingredi ent recipe scratch-building other words want plane badly enough patience skill knowledge will acquired starting point design always enlargement outline drawings size model due respect need lift contain fixed bulk weight radio engine per sonal preference process mathematical approach handy electronic calculator make myriad scale factor multiplications dimensions Before age calculators used slide rule dimensions should transferred model drawing decimal-inch scale graduated increments 1/50 inch 02 metric scale graduated mil limeters order accurately use calculator output conversion fractions think transfer dimensions scale another long arduous process need commonly complete pencil drawing sign poster paper 42-in wide roll less evening includ ing interior detail such wing fuse lage structure Obviously calculator helps speed mathematical work slide rule can almost well Until recently drawings made dining table extension leaves inserted paper length could accommo date six-foot wing span now use larger work spaces made inexpensive plywood hollow-core flush birch doors three- five-foot T-square handy can made two pieces thin scrap plywood needs make parallel lines angle Tee need precise 90 degrees 26 Model Aviation Seen Rally England Old Warden airfield Messerschmitt 110 Udo Menke Germany Twin Webra Speed 91 engines tuned pipes gave spectacular performance Weight 55 pounds span 13-1/2 feet Gained 3rd place German Model Association Championships Toledo military scale entry old masters Ed Wisser Albatros DV silk dope Unusual subject Olen Trenary North American YAT-28E sport scale Its excellent finish attained using acrylic lacquer Pilot four-bladed fan dice up nicely Straightness important tight glue joint between pieces Another method enlarging use proportional dividers although likely introduce errors due its limitations divider set ratio chosen its opposite tips proportionally spaced dimensions can transferred directly use mathematics Its limitations lie translating long dimensions seem abound aircraft divider must step off numerous increments errors accumulating step Kitchener-Waterloo Scale Rally sheer size spectacular nature modeling subjects Kitchener-Water loo Rally among great fly-ins worldyet scale modelers hear com paratively little about Bob Dolly thereand ran few pix January column So asked present Rally pictures Rally means no comp pleased give mini feature third method photographic process enlargement made original drawing can quite costly time saved can make worth expense requires services commercial photographer has necessary large format cameras Continued page 98 March1979 27 small portion 158 scale models appeared Kitchener-Waterloo Scale Rally Canada As non-competitive events rallys gaining tremendous popularity would like have 1/4-scale Peashooter Bob Dunns Boeing P-26 Quadra powered duplicates markings 01 34th Pursuit Group prototype display Air Force Museum Mammoth scale Sperry Messenger scratch-built Jim Dillebough Construction scale using plywood cloth covering Quadra-powered bird spans 7 ft Bin weighs 25 pounds vvuring factory drawings before prototype planes available Jim Messer finished 1/4-scale Piper Tomahawk Powered Quad ra Bob observed superb performance looks match Quarrer-scaic Ieupori inc wors coo Dunn member STARS club NY 0112 planes brought Rally club Quadra case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9 r HOBBYPOXY FORMULA 3 THIXOTROPIC EPOXY GLUE NOS4GS. NO RUNS. NO DRIPS. Formula 3 specially formulated gel-like viscosity allowing applied vertical surfaces thin edges other problem areas other glues just run off makes Formula 3 perfect planking building up reinforcing fillets joints sealing cracks filling holes joining poorly fitted badly die-crushed parts . hundred other things youve always wished kind glue now its made Hobbypoxy leader epoxy glues model building Formula 3 packaged two four-ounce cans has working time hour cures hard overnight IOWaN PINNCfl Division Pettit Paint co Inc 36 Pine Street Rockaway NJ 07866 down-thrust engine mounting very likely another center line panel line such top longeron will reference line use case elliptical tapered wing leading edge would useable reference another straight line will usually found absence good line have drawn basic Having developed model outline drawings methods next step sketching interior struc ture detail showing rib spar locations fuselage panel lines bulkheads time engine muffler well radio control components must hand provision can made sizes installation scale models except smallest sizes usu ally much interior space needed Precision Scale model internal volume may plentiful seems because space occupied seats instrument panels upholstery pos sibly working controls Thought must given installing radio equipment will hidden view beneath seats floors unduly disturbing desired center gravity location As planes grow larger problem diminishes structural sizes materials joining methods very fortunate having volumes magazines profusely illustrated drawings modelers showing ideas sub ject few back issues will have abundant material give fair idea course follow designing model Since modelers attempting scratchbuilt plane first time will have built kits would have accumulated few concepts very likely begun process elimination separates preferred ways means respect should said almost 50 years modeling have yet build two planes completely alike structurally borrow ideas add few own unique practice Areas deserve closest attention major joints located including engine mount wing landing gear tail surface attachments should strengthened plywood hardwood following usual model building practices Scale models tend toward heaviness addition much detail need shock absorbing landing March1979 99 L Ken Kindschi displays Sig Ryan Madison Wisconsin shopping mall club public relations efforts have paid dividends now have two publicly owned maintained flying Sites WHY Just fun stick FIRE BALL great engine runs *advanced ...... .. H STARTING 0 UNEXCELLED POWEP LOWEST DRAIN LONGER LIFE GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JEBSEY 07470 JINTERNATIONAL INC REPLA-TEC H MC KENZIE 1-IWY PLAN SI VIOA OREGON 974B8 GEE BEE Z DECALS ALL NUMBERS 21 SCALE & LETTERING 4 * EXCEPTi4h-t1tl THOSE OF THE WINGS GRANGE R WILLIAMS$495 PAWNER STREET SAN MARCOS CALIFORNIA 92069 gear greater extent light trainer possible gear prototype should copied making certain loads spread surrounding structure Avoid load concentrations single points 1978 Contests No single competition event has caught like Sport Scale Last year ten times sanc tioned AMA contests Sport Scale Precision Scale other scale events combined eastern US scale events midwest least breakdown follows no rallys included Radio Control total 184 Sport 165 Precision 16 Mammoth 3 Control Line total 31 Sport 20 Preci sion 11 Free Flight Outdoor total 51/ Gas 9 Rubber 15 Peanut 27Indoor total 18 Indoor 10 Peanut 8 high level participation RC Sport Scale generates much comment complaints Bob Temple Boca Raton Florida writes suggestions what would like see Stand-Off Scale 1 50-ft circle 10 feet way too small especially 8- 9-ft wing spans 2 Novice Expert same Pattern Gives newcomers better chance Once has won first place moves Expert 3 Time limit static judging less conversing between judges allowed flight should allowed static Actually nine-foot span compared six feet has wing tip 18 inches closer judges eyes change present 20-foot circle 25 feet would compensate maintain original intent rule desire greater viewing distance reaction trend Sport Scale toward general up-grading planes has happened throughout history competition modeling process improvement repeats events imposition rule changes has failed bring halt up-grading Finding good judges remains problem getting tough wont ease situation Judges regarded adversaries have no event Bob Dolly Wischer Rt 1 S-221 Lapham Peak Rd Delafield WI 53018 RC Helicopters/Chesney continued page 29 duce tail sensitivity using rate control transmitter moving tail rotor control rod toward center servo arm methods shown sketches Tail rotor sensitivity should adjusted response input positive fast cause tendency over-control Since proper control tail important successfully flying ma chine wise devote special attention T/R response set-up may elect purchase Kavan gyro make life little easier keep mind T/R control should never neglected learning fly RC helicopter T/R gyro assisted opinion difficulty main taining yaw heading helicopter due largely bad habits developed flying fixed-wing aircraft feel majority fixed-wing sport fliers de velop habit neglecting left stick Mode II throttle rudder controls fact dare say touch throttle rudder average flight therefore feel less com fortable absolute necessity controls flying helicopter sport fliers 3-channel aircraft set up rudder control ail eron stick again neglects need left stick activity point helicopters difficult fly poor habits such noted above will complicate learning process recommend fixed-wing ac tivities minimized learn helicopter controls must fly airplanes least concentrate using flight controls during fixedwing flying activitiesget comfortable left stick Next month some tips hope theyre helping let hear Dont forget meeting Toledo Show April 6 7 8 helicopter enthu siasts will meet Saturday night time place announced show Dave Chesney Rt 9 Box 62 IA Greensboro NC 27409 RC Soaring/Pruss continued page 3 1 aluminum molds allowed cure finish flawless trailing edges al sharp enough used shaving barn door type ailerons span about one-half wing have see fit believe hinge line con cave/convex joint could slip sheet notebook paper between wing aileron hinge joint hinges themselves Robarts three pe aileron ailerons driven through torque tube 5-mm wire main wing support much smaller diameter wire keeps wings aligned During same meeting between ses sions watched 1200 feet F3B compe tition held Europe guys build well fly better Although have ships seemingly traded off duration speed won contest Europe speeds phenomenal 11 seconds seems barrier US fliers Austrians turning nines Speed 25% F3B contest strategy particular task emphasis varies different fliers Frankly feel birds too speed-oriented argue success As availability models dont rush local hobby shop As Fritz put efforts secret feel club should develop own designs offering data building techniques book will available sometime late spring However club flush Fritz will travel youre willing host him pay expenses hell tell show Are still raised eyebrows out Dan Pruss Rt 2 Box 490 Plainfield IL 60544 writing advertisers mention read about Model Aviation 100 Model Aviation #H30 HOT 3 volts foster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition
Edition: Model Aviation - 1979/03
Page Numbers: 26, 27, 98, 99, 100
Radio Control Scale Bob8eDollyWischer DESIGN TECHNIQUE frequent correspondence modelers search information regarding model mechanical design evident enough has said subject scratch-building scale models drawings prototype aircraft such Peter Westburg Model Builder Paul Matt Historical Aviation Album other specialists purveying graphic information Usually apparent modelers search plane different available kit form preference planes frequently modeled availability excel lent drawings serves stimulate desire airplane distinctively dif ferent desire necessary ingredi ent recipe scratch-building other words want plane badly enough patience skill knowledge will acquired starting point design always enlargement outline drawings size model due respect need lift contain fixed bulk weight radio engine per sonal preference process mathematical approach handy electronic calculator make myriad scale factor multiplications dimensions Before age calculators used slide rule dimensions should transferred model drawing decimal-inch scale graduated increments 1/50 inch 02 metric scale graduated mil limeters order accurately use calculator output conversion fractions think transfer dimensions scale another long arduous process need commonly complete pencil drawing sign poster paper 42-in wide roll less evening includ ing interior detail such wing fuse lage structure Obviously calculator helps speed mathematical work slide rule can almost well Until recently drawings made dining table extension leaves inserted paper length could accommo date six-foot wing span now use larger work spaces made inexpensive plywood hollow-core flush birch doors three- five-foot T-square handy can made two pieces thin scrap plywood needs make parallel lines angle Tee need precise 90 degrees 26 Model Aviation Seen Rally England Old Warden airfield Messerschmitt 110 Udo Menke Germany Twin Webra Speed 91 engines tuned pipes gave spectacular performance Weight 55 pounds span 13-1/2 feet Gained 3rd place German Model Association Championships Toledo military scale entry old masters Ed Wisser Albatros DV silk dope Unusual subject Olen Trenary North American YAT-28E sport scale Its excellent finish attained using acrylic lacquer Pilot four-bladed fan dice up nicely Straightness important tight glue joint between pieces Another method enlarging use proportional dividers although likely introduce errors due its limitations divider set ratio chosen its opposite tips proportionally spaced dimensions can transferred directly use mathematics Its limitations lie translating long dimensions seem abound aircraft divider must step off numerous increments errors accumulating step Kitchener-Waterloo Scale Rally sheer size spectacular nature modeling subjects Kitchener-Water loo Rally among great fly-ins worldyet scale modelers hear com paratively little about Bob Dolly thereand ran few pix January column So asked present Rally pictures Rally means no comp pleased give mini feature third method photographic process enlargement made original drawing can quite costly time saved can make worth expense requires services commercial photographer has necessary large format cameras Continued page 98 March1979 27 small portion 158 scale models appeared Kitchener-Waterloo Scale Rally Canada As non-competitive events rallys gaining tremendous popularity would like have 1/4-scale Peashooter Bob Dunns Boeing P-26 Quadra powered duplicates markings 01 34th Pursuit Group prototype display Air Force Museum Mammoth scale Sperry Messenger scratch-built Jim Dillebough Construction scale using plywood cloth covering Quadra-powered bird spans 7 ft Bin weighs 25 pounds vvuring factory drawings before prototype planes available Jim Messer finished 1/4-scale Piper Tomahawk Powered Quad ra Bob observed superb performance looks match Quarrer-scaic Ieupori inc wors coo Dunn member STARS club NY 0112 planes brought Rally club Quadra case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9 r HOBBYPOXY FORMULA 3 THIXOTROPIC EPOXY GLUE NOS4GS. NO RUNS. NO DRIPS. Formula 3 specially formulated gel-like viscosity allowing applied vertical surfaces thin edges other problem areas other glues just run off makes Formula 3 perfect planking building up reinforcing fillets joints sealing cracks filling holes joining poorly fitted badly die-crushed parts . hundred other things youve always wished kind glue now its made Hobbypoxy leader epoxy glues model building Formula 3 packaged two four-ounce cans has working time hour cures hard overnight IOWaN PINNCfl Division Pettit Paint co Inc 36 Pine Street Rockaway NJ 07866 down-thrust engine mounting very likely another center line panel line such top longeron will reference line use case elliptical tapered wing leading edge would useable reference another straight line will usually found absence good line have drawn basic Having developed model outline drawings methods next step sketching interior struc ture detail showing rib spar locations fuselage panel lines bulkheads time engine muffler well radio control components must hand provision can made sizes installation scale models except smallest sizes usu ally much interior space needed Precision Scale model internal volume may plentiful seems because space occupied seats instrument panels upholstery pos sibly working controls Thought must given installing radio equipment will hidden view beneath seats floors unduly disturbing desired center gravity location As planes grow larger problem diminishes structural sizes materials joining methods very fortunate having volumes magazines profusely illustrated drawings modelers showing ideas sub ject few back issues will have abundant material give fair idea course follow designing model Since modelers attempting scratchbuilt plane first time will have built kits would have accumulated few concepts very likely begun process elimination separates preferred ways means respect should said almost 50 years modeling have yet build two planes completely alike structurally borrow ideas add few own unique practice Areas deserve closest attention major joints located including engine mount wing landing gear tail surface attachments should strengthened plywood hardwood following usual model building practices Scale models tend toward heaviness addition much detail need shock absorbing landing March1979 99 L Ken Kindschi displays Sig Ryan Madison Wisconsin shopping mall club public relations efforts have paid dividends now have two publicly owned maintained flying Sites WHY Just fun stick FIRE BALL great engine runs *advanced ...... .. H STARTING 0 UNEXCELLED POWEP LOWEST DRAIN LONGER LIFE GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JEBSEY 07470 JINTERNATIONAL INC REPLA-TEC H MC KENZIE 1-IWY PLAN SI VIOA OREGON 974B8 GEE BEE Z DECALS ALL NUMBERS 21 SCALE & LETTERING 4 * EXCEPTi4h-t1tl THOSE OF THE WINGS GRANGE R WILLIAMS$495 PAWNER STREET SAN MARCOS CALIFORNIA 92069 gear greater extent light trainer possible gear prototype should copied making certain loads spread surrounding structure Avoid load concentrations single points 1978 Contests No single competition event has caught like Sport Scale Last year ten times sanc tioned AMA contests Sport Scale Precision Scale other scale events combined eastern US scale events midwest least breakdown follows no rallys included Radio Control total 184 Sport 165 Precision 16 Mammoth 3 Control Line total 31 Sport 20 Preci sion 11 Free Flight Outdoor total 51/ Gas 9 Rubber 15 Peanut 27Indoor total 18 Indoor 10 Peanut 8 high level participation RC Sport Scale generates much comment complaints Bob Temple Boca Raton Florida writes suggestions what would like see Stand-Off Scale 1 50-ft circle 10 feet way too small especially 8- 9-ft wing spans 2 Novice Expert same Pattern Gives newcomers better chance Once has won first place moves Expert 3 Time limit static judging less conversing between judges allowed flight should allowed static Actually nine-foot span compared six feet has wing tip 18 inches closer judges eyes change present 20-foot circle 25 feet would compensate maintain original intent rule desire greater viewing distance reaction trend Sport Scale toward general up-grading planes has happened throughout history competition modeling process improvement repeats events imposition rule changes has failed bring halt up-grading Finding good judges remains problem getting tough wont ease situation Judges regarded adversaries have no event Bob Dolly Wischer Rt 1 S-221 Lapham Peak Rd Delafield WI 53018 RC Helicopters/Chesney continued page 29 duce tail sensitivity using rate control transmitter moving tail rotor control rod toward center servo arm methods shown sketches Tail rotor sensitivity should adjusted response input positive fast cause tendency over-control Since proper control tail important successfully flying ma chine wise devote special attention T/R response set-up may elect purchase Kavan gyro make life little easier keep mind T/R control should never neglected learning fly RC helicopter T/R gyro assisted opinion difficulty main taining yaw heading helicopter due largely bad habits developed flying fixed-wing aircraft feel majority fixed-wing sport fliers de velop habit neglecting left stick Mode II throttle rudder controls fact dare say touch throttle rudder average flight therefore feel less com fortable absolute necessity controls flying helicopter sport fliers 3-channel aircraft set up rudder control ail eron stick again neglects need left stick activity point helicopters difficult fly poor habits such noted above will complicate learning process recommend fixed-wing ac tivities minimized learn helicopter controls must fly airplanes least concentrate using flight controls during fixedwing flying activitiesget comfortable left stick Next month some tips hope theyre helping let hear Dont forget meeting Toledo Show April 6 7 8 helicopter enthu siasts will meet Saturday night time place announced show Dave Chesney Rt 9 Box 62 IA Greensboro NC 27409 RC Soaring/Pruss continued page 3 1 aluminum molds allowed cure finish flawless trailing edges al sharp enough used shaving barn door type ailerons span about one-half wing have see fit believe hinge line con cave/convex joint could slip sheet notebook paper between wing aileron hinge joint hinges themselves Robarts three pe aileron ailerons driven through torque tube 5-mm wire main wing support much smaller diameter wire keeps wings aligned During same meeting between ses sions watched 1200 feet F3B compe tition held Europe guys build well fly better Although have ships seemingly traded off duration speed won contest Europe speeds phenomenal 11 seconds seems barrier US fliers Austrians turning nines Speed 25% F3B contest strategy particular task emphasis varies different fliers Frankly feel birds too speed-oriented argue success As availability models dont rush local hobby shop As Fritz put efforts secret feel club should develop own designs offering data building techniques book will available sometime late spring However club flush Fritz will travel youre willing host him pay expenses hell tell show Are still raised eyebrows out Dan Pruss Rt 2 Box 490 Plainfield IL 60544 writing advertisers mention read about Model Aviation 100 Model Aviation #H30 HOT 3 volts foster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition
Edition: Model Aviation - 1979/03
Page Numbers: 26, 27, 98, 99, 100
Radio Control Scale Bob8eDollyWischer DESIGN TECHNIQUE frequent correspondence modelers search information regarding model mechanical design evident enough has said subject scratch-building scale models drawings prototype aircraft such Peter Westburg Model Builder Paul Matt Historical Aviation Album other specialists purveying graphic information Usually apparent modelers search plane different available kit form preference planes frequently modeled availability excel lent drawings serves stimulate desire airplane distinctively dif ferent desire necessary ingredi ent recipe scratch-building other words want plane badly enough patience skill knowledge will acquired starting point design always enlargement outline drawings size model due respect need lift contain fixed bulk weight radio engine per sonal preference process mathematical approach handy electronic calculator make myriad scale factor multiplications dimensions Before age calculators used slide rule dimensions should transferred model drawing decimal-inch scale graduated increments 1/50 inch 02 metric scale graduated mil limeters order accurately use calculator output conversion fractions think transfer dimensions scale another long arduous process need commonly complete pencil drawing sign poster paper 42-in wide roll less evening includ ing interior detail such wing fuse lage structure Obviously calculator helps speed mathematical work slide rule can almost well Until recently drawings made dining table extension leaves inserted paper length could accommo date six-foot wing span now use larger work spaces made inexpensive plywood hollow-core flush birch doors three- five-foot T-square handy can made two pieces thin scrap plywood needs make parallel lines angle Tee need precise 90 degrees 26 Model Aviation Seen Rally England Old Warden airfield Messerschmitt 110 Udo Menke Germany Twin Webra Speed 91 engines tuned pipes gave spectacular performance Weight 55 pounds span 13-1/2 feet Gained 3rd place German Model Association Championships Toledo military scale entry old masters Ed Wisser Albatros DV silk dope Unusual subject Olen Trenary North American YAT-28E sport scale Its excellent finish attained using acrylic lacquer Pilot four-bladed fan dice up nicely Straightness important tight glue joint between pieces Another method enlarging use proportional dividers although likely introduce errors due its limitations divider set ratio chosen its opposite tips proportionally spaced dimensions can transferred directly use mathematics Its limitations lie translating long dimensions seem abound aircraft divider must step off numerous increments errors accumulating step Kitchener-Waterloo Scale Rally sheer size spectacular nature modeling subjects Kitchener-Water loo Rally among great fly-ins worldyet scale modelers hear com paratively little about Bob Dolly thereand ran few pix January column So asked present Rally pictures Rally means no comp pleased give mini feature third method photographic process enlargement made original drawing can quite costly time saved can make worth expense requires services commercial photographer has necessary large format cameras Continued page 98 March1979 27 small portion 158 scale models appeared Kitchener-Waterloo Scale Rally Canada As non-competitive events rallys gaining tremendous popularity would like have 1/4-scale Peashooter Bob Dunns Boeing P-26 Quadra powered duplicates markings 01 34th Pursuit Group prototype display Air Force Museum Mammoth scale Sperry Messenger scratch-built Jim Dillebough Construction scale using plywood cloth covering Quadra-powered bird spans 7 ft Bin weighs 25 pounds vvuring factory drawings before prototype planes available Jim Messer finished 1/4-scale Piper Tomahawk Powered Quad ra Bob observed superb performance looks match Quarrer-scaic Ieupori inc wors coo Dunn member STARS club NY 0112 planes brought Rally club Quadra case arent familiar Royal kit servos well worth checking out can buy four RS-5 kits $1999 previously reported building Royal receiver Its great buy too Kent Walters edits Sun Valley Fliers newsletter Bits-N-Pieces Club treas urer Art Marshall submitted following November issue describes lot us feel about pattern flying Pattern flying special challenge drive win trophies show off friends means mastering re mote control model airplane command toy perform fingers move sticks constantly demanding toy smoother graceful going through pre-de scribed maneuvers contest circuit fun meet nice people will find strongest competitor best helper have seen people beat out trophy loaning plane compet itor competing people competing maneuver trying make perfect also striving build plane will perform flawless maneuvers Everything must straight fit perfectly together days will make does what want will look new chal lenge might try scale plane get frustrated just fly Ugly Stick thats what its about Occasionally friend Dick McGraw gives hard time blow Double Stall Turn likes complain can perform difficult maneuver like Slow Roll have trouble easy like Stall Turn Stall Turn easy maneuver different versions wouldnt present aerobatic pattern classes meets criteria being good man euver namely difficult per form easy judge Stall Turns doomed poor start because flier hasnt taken trouble get wings level before pulling up airplane So give yourself fighting chance ten Stall Turn sure turn around far enough out can get wings level well before entering maneuver pullup should start directly front pilot look like beginning large loop airplane gets vertical attitude back stick should eased off airplane continues vertical climb During pullup vertical climb note airplane tends yaw either direction does should make small trim corrections rudder aileron necessary keep trying maneuver until airplane shows no tendency yaw airplane yaws way time other way next time probably dont have wings level during pullup Have someone observe what doing coach After airplane gets vertical climb reduce power idle apply full rudder airplane has slowed almost stop will have learn direction airplane likes turn best must also learn right time apply rudder put too soon airplane will simply perform U-turn maneuver will probably downgraded failing obtain stall having downward path two wing spans upward path rudder applied too late airplane will probably flop forward backward rather yawing sometimes helps jazz throttle time two after rudder applied use prop blast driving tail around airplane has yawed about 900 return rudder neutral rudder held longer airplane will fishtail during vertical downward path ma neuver will downgraded rudder returned neutral exactly right time airplane will finish turn head ing straight ground After airplane dives vertically same distance upward path per form another smooth quarter loop finish maneuver Dont add power until maneuver completed Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Scale Wischers continued page 27 equipment An opaque projector can used some success drawing projected large sheet paper lines traced being careful dis tort image misalignment another completely different system producing model drawing far accurate process model dimensions deter mined directly working detail draw ings used prototype aircraft very time consuming procedure An electronic calculator used divide individual piece dimensions scale factor odd decimal factors dimensional accuracy greater model building requires have used process three planes would prefer future except working draw ings very difficult obtain availability manufacturing draw ings makes model home-built type plane advantageous builders usually delighted flattered have someone model planes Permission take needed photos has never problem annual visits FAA convention Oshkosh Mecca homebuilders have exposed innovative design efforts create planes unique grace beauty Obvi ously planes seen would make good models find high percentage attractive extent year two can spent modeling Oshkosh also place photograph hundreds mili tary classic antique visiting planes first step generation drawing look straight lines structure used reference lines transferring dimensions possible draw ings should made reference centerline thrust line fuselage front spar leading edge wing tail surfaces would prefer develop drawing using same basic reference lines used prototype designer original 98 Model Aviation FINISH MODEL AS riY ONE IJr IflKEE LIlItKINl AIKLKAIi #121 GILMORE RED LION MISS PATTERSON MISS NEW ORLEANS PRICE $595 FROM YOUR DEALER OR ORDER DIRECT ADDING 15/ POSTAGE AND HANDLING 5RND5OFORCATALOG DEPT MN PAWNEE STREET MARCOS CALIFORNIA 9 r HOBBYPOXY FORMULA 3 THIXOTROPIC EPOXY GLUE NOS4GS. NO RUNS. NO DRIPS. Formula 3 specially formulated gel-like viscosity allowing applied vertical surfaces thin edges other problem areas other glues just run off makes Formula 3 perfect planking building up reinforcing fillets joints sealing cracks filling holes joining poorly fitted badly die-crushed parts . hundred other things youve always wished kind glue now its made Hobbypoxy leader epoxy glues model building Formula 3 packaged two four-ounce cans has working time hour cures hard overnight IOWaN PINNCfl Division Pettit Paint co Inc 36 Pine Street Rockaway NJ 07866 down-thrust engine mounting very likely another center line panel line such top longeron will reference line use case elliptical tapered wing leading edge would useable reference another straight line will usually found absence good line have drawn basic Having developed model outline drawings methods next step sketching interior struc ture detail showing rib spar locations fuselage panel lines bulkheads time engine muffler well radio control components must hand provision can made sizes installation scale models except smallest sizes usu ally much interior space needed Precision Scale model internal volume may plentiful seems because space occupied seats instrument panels upholstery pos sibly working controls Thought must given installing radio equipment will hidden view beneath seats floors unduly disturbing desired center gravity location As planes grow larger problem diminishes structural sizes materials joining methods very fortunate having volumes magazines profusely illustrated drawings modelers showing ideas sub ject few back issues will have abundant material give fair idea course follow designing model Since modelers attempting scratchbuilt plane first time will have built kits would have accumulated few concepts very likely begun process elimination separates preferred ways means respect should said almost 50 years modeling have yet build two planes completely alike structurally borrow ideas add few own unique practice Areas deserve closest attention major joints located including engine mount wing landing gear tail surface attachments should strengthened plywood hardwood following usual model building practices Scale models tend toward heaviness addition much detail need shock absorbing landing March1979 99 L Ken Kindschi displays Sig Ryan Madison Wisconsin shopping mall club public relations efforts have paid dividends now have two publicly owned maintained flying Sites WHY Just fun stick FIRE BALL great engine runs *advanced ...... .. H STARTING 0 UNEXCELLED POWEP LOWEST DRAIN LONGER LIFE GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JEBSEY 07470 JINTERNATIONAL INC REPLA-TEC H MC KENZIE 1-IWY PLAN SI VIOA OREGON 974B8 GEE BEE Z DECALS ALL NUMBERS 21 SCALE & LETTERING 4 * EXCEPTi4h-t1tl THOSE OF THE WINGS GRANGE R WILLIAMS$495 PAWNER STREET SAN MARCOS CALIFORNIA 92069 gear greater extent light trainer possible gear prototype should copied making certain loads spread surrounding structure Avoid load concentrations single points 1978 Contests No single competition event has caught like Sport Scale Last year ten times sanc tioned AMA contests Sport Scale Precision Scale other scale events combined eastern US scale events midwest least breakdown follows no rallys included Radio Control total 184 Sport 165 Precision 16 Mammoth 3 Control Line total 31 Sport 20 Preci sion 11 Free Flight Outdoor total 51/ Gas 9 Rubber 15 Peanut 27Indoor total 18 Indoor 10 Peanut 8 high level participation RC Sport Scale generates much comment complaints Bob Temple Boca Raton Florida writes suggestions what would like see Stand-Off Scale 1 50-ft circle 10 feet way too small especially 8- 9-ft wing spans 2 Novice Expert same Pattern Gives newcomers better chance Once has won first place moves Expert 3 Time limit static judging less conversing between judges allowed flight should allowed static Actually nine-foot span compared six feet has wing tip 18 inches closer judges eyes change present 20-foot circle 25 feet would compensate maintain original intent rule desire greater viewing distance reaction trend Sport Scale toward general up-grading planes has happened throughout history competition modeling process improvement repeats events imposition rule changes has failed bring halt up-grading Finding good judges remains problem getting tough wont ease situation Judges regarded adversaries have no event Bob Dolly Wischer Rt 1 S-221 Lapham Peak Rd Delafield WI 53018 RC Helicopters/Chesney continued page 29 duce tail sensitivity using rate control transmitter moving tail rotor control rod toward center servo arm methods shown sketches Tail rotor sensitivity should adjusted response input positive fast cause tendency over-control Since proper control tail important successfully flying ma chine wise devote special attention T/R response set-up may elect purchase Kavan gyro make life little easier keep mind T/R control should never neglected learning fly RC helicopter T/R gyro assisted opinion difficulty main taining yaw heading helicopter due largely bad habits developed flying fixed-wing aircraft feel majority fixed-wing sport fliers de velop habit neglecting left stick Mode II throttle rudder controls fact dare say touch throttle rudder average flight therefore feel less com fortable absolute necessity controls flying helicopter sport fliers 3-channel aircraft set up rudder control ail eron stick again neglects need left stick activity point helicopters difficult fly poor habits such noted above will complicate learning process recommend fixed-wing ac tivities minimized learn helicopter controls must fly airplanes least concentrate using flight controls during fixedwing flying activitiesget comfortable left stick Next month some tips hope theyre helping let hear Dont forget meeting Toledo Show April 6 7 8 helicopter enthu siasts will meet Saturday night time place announced show Dave Chesney Rt 9 Box 62 IA Greensboro NC 27409 RC Soaring/Pruss continued page 3 1 aluminum molds allowed cure finish flawless trailing edges al sharp enough used shaving barn door type ailerons span about one-half wing have see fit believe hinge line con cave/convex joint could slip sheet notebook paper between wing aileron hinge joint hinges themselves Robarts three pe aileron ailerons driven through torque tube 5-mm wire main wing support much smaller diameter wire keeps wings aligned During same meeting between ses sions watched 1200 feet F3B compe tition held Europe guys build well fly better Although have ships seemingly traded off duration speed won contest Europe speeds phenomenal 11 seconds seems barrier US fliers Austrians turning nines Speed 25% F3B contest strategy particular task emphasis varies different fliers Frankly feel birds too speed-oriented argue success As availability models dont rush local hobby shop As Fritz put efforts secret feel club should develop own designs offering data building techniques book will available sometime late spring However club flush Fritz will travel youre willing host him pay expenses hell tell show Are still raised eyebrows out Dan Pruss Rt 2 Box 490 Plainfield IL 60544 writing advertisers mention read about Model Aviation 100 Model Aviation #H30 HOT 3 volts foster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition