Radio Control Soar ng Dan Pruss PHOTOS two month through courtesy Geoff Dallimer England During recent FAI/CIAM meeting past December Geoff swapped few photos partic ularly interested show what fluence Austriansmore specifically Sitar boyshave sailplane design other side Atlantic Ever since Werner Sitar smoked speed course June 1977 estab lished current speed record 2429 mphthat 2429 mph some modelers have sitting raised eyebrows others have accepted challenge knowledge gained quest speed mark Sitars Werner Herbert along designer Frido un Fritz invaded F3B R/C Sail plane FAI circuits Since have team Europe beat under standably design influence could expected past ClAM highlight get togetheroutside meeting itselfwas time spent Fridolin Fritz expense being labled Gilbert Gullible Ill first admit eyebrow has lowered read efforts perhaps track record will sound convincing told speed record F3B contest efforts by-products different earlier goal surely youre going think article should have begun Once upon time. 1967 small group fliers lnnsbruck got RC sailplane bug have together ever since site 2000 meters up ski slope its place unload van enjoy day flying has walk up site good part way have give dedication slope effect models can brutal Austrian boys soon found get ting models down great heights often disastrous did land themsometimes packed snowthey often skidded areas dif ficult impossible retrieve So about 1970 started design model light easy transport 2 could dived out wave effect severe up slope winds folding wings 3 could stopped packed snow Small modelsby stand ardswere designed fibreglass-type fuselage tail wings foam glass skinned sur faces took care first two re quirements pointed nose allowed models speared packed snow satisfy requirement three end result model virtually indestructible air high speeds realized Fritz Sitars went about designing speed ship 1976 seta record 188 mph screaming yelling went said 188 impossible Idols Innsbruck yawned flew RC sailplane faster model airplane ever flown some details see Fastest Model Ever Flown August 1978 issue Model Aviation re cording still-to-beat 2429 mph Some sidelights record told Fritz included selection colors whole model white red-tipped wings stab Now know white model disappears faster would-be timer does air turns green White terrible color high visibility necessary especially youre flying hazy summer after noon other factor has visibil ity reduced However conditions Austria record set included snow mountain air pollution free Air void dust smoke etc far cry different reported weather bureau clear skies its reason telescopes mounted observatories mountain tops rather next towns smoked sausage plant Snow acts excellent reflector us noticed effect during last years SNOFLI Detroit saw couple white models actually glis tened against blue sky Details models discernible yet red orange darker models mere 30 Model Aviation Cohn Sond England 84-in FaCCtor Sitar influence evident Wing loading 11 os/sq ft. balsa skin over foam cores Howard Burns England 100-in Foss Centerphase Question Will Sitar influence now jump Atlantic Photo Geoff Dallimer C Sitar Brothers F3B Class Soarer Scale 115 Wing section full size ThNX silhouettes Fritz didnt have data him ClAM concerning speed record said about 40 passes made nine course could timed However model launched three times nearly 40 flights Most record dossiers six 12 pages long Austrians contains 78 pages Sitars Fritz decided fly FAI F3B competition mod ified record holder Pfeil Arrow designed Dassel wing latter has Eppler 193 airfoil wing chord constant Span 2125 mm about 85 inches horizontal stab has Gottingen 444 airfoil stab little over 11% wing area Weighton heavy side standards48 ounces Remember ship just over two meters span Controls mechanically coupled aile rons rudder servo another drives flying stab Recently models sported third servo clearly use canopy section speed brake tow hook fixed releaseable aforementioned meeting Fritz samples wing construction foam wings cut layered glass epoxy clamped Continued page 100 March 1979 31 Three-view shows Dassel/ Sitar/Fritz design cleaning up F3B competition Europe Drawing upon experience Austrian world-record holder 2429 mph looks like speed job sailplane Left Open canopy acts speed brake Tight fitting ailerons noticeable Right design traded off duration speedtime barrier nines compared ils us Austrians won contest Europe last year Just over two meters span ship weighs 48 ounces Photos ModellFlugsport 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: 30, 31, 100
Radio Control Soar ng Dan Pruss PHOTOS two month through courtesy Geoff Dallimer England During recent FAI/CIAM meeting past December Geoff swapped few photos partic ularly interested show what fluence Austriansmore specifically Sitar boyshave sailplane design other side Atlantic Ever since Werner Sitar smoked speed course June 1977 estab lished current speed record 2429 mphthat 2429 mph some modelers have sitting raised eyebrows others have accepted challenge knowledge gained quest speed mark Sitars Werner Herbert along designer Frido un Fritz invaded F3B R/C Sail plane FAI circuits Since have team Europe beat under standably design influence could expected past ClAM highlight get togetheroutside meeting itselfwas time spent Fridolin Fritz expense being labled Gilbert Gullible Ill first admit eyebrow has lowered read efforts perhaps track record will sound convincing told speed record F3B contest efforts by-products different earlier goal surely youre going think article should have begun Once upon time. 1967 small group fliers lnnsbruck got RC sailplane bug have together ever since site 2000 meters up ski slope its place unload van enjoy day flying has walk up site good part way have give dedication slope effect models can brutal Austrian boys soon found get ting models down great heights often disastrous did land themsometimes packed snowthey often skidded areas dif ficult impossible retrieve So about 1970 started design model light easy transport 2 could dived out wave effect severe up slope winds folding wings 3 could stopped packed snow Small modelsby stand ardswere designed fibreglass-type fuselage tail wings foam glass skinned sur faces took care first two re quirements pointed nose allowed models speared packed snow satisfy requirement three end result model virtually indestructible air high speeds realized Fritz Sitars went about designing speed ship 1976 seta record 188 mph screaming yelling went said 188 impossible Idols Innsbruck yawned flew RC sailplane faster model airplane ever flown some details see Fastest Model Ever Flown August 1978 issue Model Aviation re cording still-to-beat 2429 mph Some sidelights record told Fritz included selection colors whole model white red-tipped wings stab Now know white model disappears faster would-be timer does air turns green White terrible color high visibility necessary especially youre flying hazy summer after noon other factor has visibil ity reduced However conditions Austria record set included snow mountain air pollution free Air void dust smoke etc far cry different reported weather bureau clear skies its reason telescopes mounted observatories mountain tops rather next towns smoked sausage plant Snow acts excellent reflector us noticed effect during last years SNOFLI Detroit saw couple white models actually glis tened against blue sky Details models discernible yet red orange darker models mere 30 Model Aviation Cohn Sond England 84-in FaCCtor Sitar influence evident Wing loading 11 os/sq ft. balsa skin over foam cores Howard Burns England 100-in Foss Centerphase Question Will Sitar influence now jump Atlantic Photo Geoff Dallimer C Sitar Brothers F3B Class Soarer Scale 115 Wing section full size ThNX silhouettes Fritz didnt have data him ClAM concerning speed record said about 40 passes made nine course could timed However model launched three times nearly 40 flights Most record dossiers six 12 pages long Austrians contains 78 pages Sitars Fritz decided fly FAI F3B competition mod ified record holder Pfeil Arrow designed Dassel wing latter has Eppler 193 airfoil wing chord constant Span 2125 mm about 85 inches horizontal stab has Gottingen 444 airfoil stab little over 11% wing area Weighton heavy side standards48 ounces Remember ship just over two meters span Controls mechanically coupled aile rons rudder servo another drives flying stab Recently models sported third servo clearly use canopy section speed brake tow hook fixed releaseable aforementioned meeting Fritz samples wing construction foam wings cut layered glass epoxy clamped Continued page 100 March 1979 31 Three-view shows Dassel/ Sitar/Fritz design cleaning up F3B competition Europe Drawing upon experience Austrian world-record holder 2429 mph looks like speed job sailplane Left Open canopy acts speed brake Tight fitting ailerons noticeable Right design traded off duration speedtime barrier nines compared ils us Austrians won contest Europe last year Just over two meters span ship weighs 48 ounces Photos ModellFlugsport 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: 30, 31, 100
Radio Control Soar ng Dan Pruss PHOTOS two month through courtesy Geoff Dallimer England During recent FAI/CIAM meeting past December Geoff swapped few photos partic ularly interested show what fluence Austriansmore specifically Sitar boyshave sailplane design other side Atlantic Ever since Werner Sitar smoked speed course June 1977 estab lished current speed record 2429 mphthat 2429 mph some modelers have sitting raised eyebrows others have accepted challenge knowledge gained quest speed mark Sitars Werner Herbert along designer Frido un Fritz invaded F3B R/C Sail plane FAI circuits Since have team Europe beat under standably design influence could expected past ClAM highlight get togetheroutside meeting itselfwas time spent Fridolin Fritz expense being labled Gilbert Gullible Ill first admit eyebrow has lowered read efforts perhaps track record will sound convincing told speed record F3B contest efforts by-products different earlier goal surely youre going think article should have begun Once upon time. 1967 small group fliers lnnsbruck got RC sailplane bug have together ever since site 2000 meters up ski slope its place unload van enjoy day flying has walk up site good part way have give dedication slope effect models can brutal Austrian boys soon found get ting models down great heights often disastrous did land themsometimes packed snowthey often skidded areas dif ficult impossible retrieve So about 1970 started design model light easy transport 2 could dived out wave effect severe up slope winds folding wings 3 could stopped packed snow Small modelsby stand ardswere designed fibreglass-type fuselage tail wings foam glass skinned sur faces took care first two re quirements pointed nose allowed models speared packed snow satisfy requirement three end result model virtually indestructible air high speeds realized Fritz Sitars went about designing speed ship 1976 seta record 188 mph screaming yelling went said 188 impossible Idols Innsbruck yawned flew RC sailplane faster model airplane ever flown some details see Fastest Model Ever Flown August 1978 issue Model Aviation re cording still-to-beat 2429 mph Some sidelights record told Fritz included selection colors whole model white red-tipped wings stab Now know white model disappears faster would-be timer does air turns green White terrible color high visibility necessary especially youre flying hazy summer after noon other factor has visibil ity reduced However conditions Austria record set included snow mountain air pollution free Air void dust smoke etc far cry different reported weather bureau clear skies its reason telescopes mounted observatories mountain tops rather next towns smoked sausage plant Snow acts excellent reflector us noticed effect during last years SNOFLI Detroit saw couple white models actually glis tened against blue sky Details models discernible yet red orange darker models mere 30 Model Aviation Cohn Sond England 84-in FaCCtor Sitar influence evident Wing loading 11 os/sq ft. balsa skin over foam cores Howard Burns England 100-in Foss Centerphase Question Will Sitar influence now jump Atlantic Photo Geoff Dallimer C Sitar Brothers F3B Class Soarer Scale 115 Wing section full size ThNX silhouettes Fritz didnt have data him ClAM concerning speed record said about 40 passes made nine course could timed However model launched three times nearly 40 flights Most record dossiers six 12 pages long Austrians contains 78 pages Sitars Fritz decided fly FAI F3B competition mod ified record holder Pfeil Arrow designed Dassel wing latter has Eppler 193 airfoil wing chord constant Span 2125 mm about 85 inches horizontal stab has Gottingen 444 airfoil stab little over 11% wing area Weighton heavy side standards48 ounces Remember ship just over two meters span Controls mechanically coupled aile rons rudder servo another drives flying stab Recently models sported third servo clearly use canopy section speed brake tow hook fixed releaseable aforementioned meeting Fritz samples wing construction foam wings cut layered glass epoxy clamped Continued page 100 March 1979 31 Three-view shows Dassel/ Sitar/Fritz design cleaning up F3B competition Europe Drawing upon experience Austrian world-record holder 2429 mph looks like speed job sailplane Left Open canopy acts speed brake Tight fitting ailerons noticeable Right design traded off duration speedtime barrier nines compared ils us Austrians won contest Europe last year Just over two meters span ship weighs 48 ounces Photos ModellFlugsport 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