jeupw raust fun run Editors aa hog new ra engines out ertain adv v pro may wind Vt simple rae Wakefield win r fin id wind w ig raise easy air tt mt ut changing irfect regard ai big must ral direc eight-lifting model adral As weight dihedral hands aired go up 12 degrees istantly control -and can wind either side r-engineer decreed ship droi ae gn anb make nt nose wei d May sut si developing rr worse Add sI vith flat bot may nose n higher up Keep wn trim awn Willard tells off center rn wrc fin became tota1 Illusions may m contradicted te end point isa verified / cc model d downt added eri Its would have bef suI tail fling its size foi knt n*i SPECIAL PRO SERIES 2 FOR RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE Et3489 63489 73344119 83%456129 945664 77%139 10467149 106W 8W149 106EW159 114877% 7% 7%8159 116EW169 11%67169 126179 125W179 1358219 1456249 1556309 18446389 W WIDE BLADE EW EXTRA WIDE SERIES 400 B Poe SPEED NG ADVANCED DESIGN ND 1 IN PYLDN RACING LEADING SPEED RECORD HOLDER DF ALL TIMES RC PYLON RACING DIA PITCHPRICE 5%3%4129 755%6149 7SN 5/N 6N149 8%6%6%7 7%7%189 9647 747189 CONTROL LINE EED& RACING DIA PITCHPRICE 4%6%129 4%55%128 6788%149 77A10%11169 889189 89N 9%N189 8%77%189 912 13219 N NARROW Openers continued page 4 round beating out othersinclud ing two Open Class ships 15-minute round Ken could get down under 11-minute max no points rule 10-minute flight Incidentally Ken discovered inverted flight excellent way get Windlord out boomer So has proved flying wings can compete successfully sailplane competition Neil Liptaks plans Windlord collectors item MA just about despaired getting plans right glider-man Liptak came rescue nice Al Meyers engaged Liptak make magnificent plan pg 27 Mustang CL Sport-Scale/Stunter Alasfor us Neil about build house put away drawing pen guy would love fly Doc Mathews recently took over RC Old-Timers Jack Bolton business travels filled time does Doc grind out won derful old gassies flies high wide handsome enthusiasm would regenerate moribund Doc 45-year-old family dentist cant hurt us anymore Doc small farm ing community 2000 souls Galesburg KS wife Joann very pa tient lady Two sons Mark pre-law Senior Bruce HS Senior thinks world shaped like bas ketball Daughter Shelly sopho honor student engineering Both boys show up widespread FF contests Between men folk have garnered cabinet full trophies everything Indoor Doc has modeling since seven first flew O&R 23 Fireball got RC 1952 An avid competitor hes 11 Nats uncountable local meets within 400 miles first OT 3-channel Bombshell eight years ago describes trainer sporting old-timers call things superb trainers likes RC As sist because smaller close-in flying fields can used needing compli cated launching apparatus no long walks retrieval fence climbing well remember Most turned esthetic purity model thermaling Which says very well indeed often have heard word penetration ability ship cleave through wind prized qual ity RC hardly factor case high-powered heavy clean pattern models pylon racers important much sport fly ing rudder-only days whence word penetration has inherited single-channel models seldom could make progress wind ballooned stalled galloped blew awayoften out sightas flier did damndest engine elevator control have made life half liveable gales blow Now fascinating letter Joe Tschirgo Letters pg 6 commenting Wischer column mak ing point lightly loaded scale models can fly win wind Both gents know what talking about isnt question wrong am right view point No wrong expect Bob will talking again ques tion What tickled us Joes general sertion fallacy light models cant fly wind Big smallengined load carriers flying empty like 6- 8-ft 09/15 have bested wind Ground turbulence might require quick stick work lightly loaded model stay keel once up can bore smoothly wind Proper balance trimming plus elevator trim control allow crank too much positive stab compensate wind decalage de creased sometimes point reaching negative pitching moment other words stab less effective countering increased wing CL creasing angles attack will stall before wing isnt say light airplane desirable wind dont mumble cant have penetra tion Tschirgi may first dare say recent AMA membership renew al period witnessed 20% increase number Open members take Model Aviation So second year row MA has increased its reader ship significant amount Over 75% AMA adult membership now take magazine No member required subscribe MA member has option declining magazine subscribing opts pays full subscription price because wants magazine pleased people find contents worthwhile wed like say Thank Letters Editor continued page 7 closing dollar cover postage etc am 34 year old veteran United Con tinued page 85 60 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula 11125 RevUp 8Ya-6% new Pylon Rac ing prop OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st RC Masters Class 1st RC Advanced 1st RC Novice 1st RC Sport Scale rn 1st CL Combat O & Sr let CL Slow Comb Op & Sr 1st CL Class 0 Speed Open 1st CL Class C Speed Jr & Sr let CLClassB Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st PP Class B Open let FF Class C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBLY FINISHED COMPLETELY FUEL PROOF 1st Formula Pylon 1st Ounrter Midget Pylon 1st CL Stunt Open let CL Stunt Senior let CL 5tunt Junior 1st CL Carrier II Op Jr Sr let CL Carrier Jr & Sr
Edition: Model Aviation - 1978/03
Page Numbers: 4, 60
jeupw raust fun run Editors aa hog new ra engines out ertain adv v pro may wind Vt simple rae Wakefield win r fin id wind w ig raise easy air tt mt ut changing irfect regard ai big must ral direc eight-lifting model adral As weight dihedral hands aired go up 12 degrees istantly control -and can wind either side r-engineer decreed ship droi ae gn anb make nt nose wei d May sut si developing rr worse Add sI vith flat bot may nose n higher up Keep wn trim awn Willard tells off center rn wrc fin became tota1 Illusions may m contradicted te end point isa verified / cc model d downt added eri Its would have bef suI tail fling its size foi knt n*i SPECIAL PRO SERIES 2 FOR RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE Et3489 63489 73344119 83%456129 945664 77%139 10467149 106W 8W149 106EW159 114877% 7% 7%8159 116EW169 11%67169 126179 125W179 1358219 1456249 1556309 18446389 W WIDE BLADE EW EXTRA WIDE SERIES 400 B Poe SPEED NG ADVANCED DESIGN ND 1 IN PYLDN RACING LEADING SPEED RECORD HOLDER DF ALL TIMES RC PYLON RACING DIA PITCHPRICE 5%3%4129 755%6149 7SN 5/N 6N149 8%6%6%7 7%7%189 9647 747189 CONTROL LINE EED& RACING DIA PITCHPRICE 4%6%129 4%55%128 6788%149 77A10%11169 889189 89N 9%N189 8%77%189 912 13219 N NARROW Openers continued page 4 round beating out othersinclud ing two Open Class ships 15-minute round Ken could get down under 11-minute max no points rule 10-minute flight Incidentally Ken discovered inverted flight excellent way get Windlord out boomer So has proved flying wings can compete successfully sailplane competition Neil Liptaks plans Windlord collectors item MA just about despaired getting plans right glider-man Liptak came rescue nice Al Meyers engaged Liptak make magnificent plan pg 27 Mustang CL Sport-Scale/Stunter Alasfor us Neil about build house put away drawing pen guy would love fly Doc Mathews recently took over RC Old-Timers Jack Bolton business travels filled time does Doc grind out won derful old gassies flies high wide handsome enthusiasm would regenerate moribund Doc 45-year-old family dentist cant hurt us anymore Doc small farm ing community 2000 souls Galesburg KS wife Joann very pa tient lady Two sons Mark pre-law Senior Bruce HS Senior thinks world shaped like bas ketball Daughter Shelly sopho honor student engineering Both boys show up widespread FF contests Between men folk have garnered cabinet full trophies everything Indoor Doc has modeling since seven first flew O&R 23 Fireball got RC 1952 An avid competitor hes 11 Nats uncountable local meets within 400 miles first OT 3-channel Bombshell eight years ago describes trainer sporting old-timers call things superb trainers likes RC As sist because smaller close-in flying fields can used needing compli cated launching apparatus no long walks retrieval fence climbing well remember Most turned esthetic purity model thermaling Which says very well indeed often have heard word penetration ability ship cleave through wind prized qual ity RC hardly factor case high-powered heavy clean pattern models pylon racers important much sport fly ing rudder-only days whence word penetration has inherited single-channel models seldom could make progress wind ballooned stalled galloped blew awayoften out sightas flier did damndest engine elevator control have made life half liveable gales blow Now fascinating letter Joe Tschirgo Letters pg 6 commenting Wischer column mak ing point lightly loaded scale models can fly win wind Both gents know what talking about isnt question wrong am right view point No wrong expect Bob will talking again ques tion What tickled us Joes general sertion fallacy light models cant fly wind Big smallengined load carriers flying empty like 6- 8-ft 09/15 have bested wind Ground turbulence might require quick stick work lightly loaded model stay keel once up can bore smoothly wind Proper balance trimming plus elevator trim control allow crank too much positive stab compensate wind decalage de creased sometimes point reaching negative pitching moment other words stab less effective countering increased wing CL creasing angles attack will stall before wing isnt say light airplane desirable wind dont mumble cant have penetra tion Tschirgi may first dare say recent AMA membership renew al period witnessed 20% increase number Open members take Model Aviation So second year row MA has increased its reader ship significant amount Over 75% AMA adult membership now take magazine No member required subscribe MA member has option declining magazine subscribing opts pays full subscription price because wants magazine pleased people find contents worthwhile wed like say Thank Letters Editor continued page 7 closing dollar cover postage etc am 34 year old veteran United Con tinued page 85 60 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula 11125 RevUp 8Ya-6% new Pylon Rac ing prop OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st RC Masters Class 1st RC Advanced 1st RC Novice 1st RC Sport Scale rn 1st CL Combat O & Sr let CL Slow Comb Op & Sr 1st CL Class 0 Speed Open 1st CL Class C Speed Jr & Sr let CLClassB Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st PP Class B Open let FF Class C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBLY FINISHED COMPLETELY FUEL PROOF 1st Formula Pylon 1st Ounrter Midget Pylon 1st CL Stunt Open let CL Stunt Senior let CL 5tunt Junior 1st CL Carrier II Op Jr Sr let CL Carrier Jr & Sr