IT SEEMS February 79 column basics 3-line throttle control systems has unearthed slightly tongue-incheek debate about proper direction high low throttle movement Should throttle lever handle moved ward back yield high throttle Two expert CL Carrier fliers wrote pointing out 3-line fliers event prefer directions opposite diagramed correct scale flying prefer steadfastly recommend Scale high throttle forward control handle Carrier fliers claim back high throttle better event right Undoubtedly both correct respective events exacting demands both competitive challenges produces slightly different equip ment requirements Although column concerns itself Scale event Id like share some recent corre spondence because intriguingfood thought reasoning behind preferred set-ups both letter George Lieb said part read article February Model Aviation about throttle controls would like comment First carrier people hook up throttle pulling trigger gives high throttle seems natural movement way show Just like chain saw drill saber saw soldering gun etc can mount Roberts G-S bellcranks either upright inverted reason having two different types can accommodate engine throttles move either direction planes have inverted style bellcranks mounted upright engine will high throttle trigger pulled throttle engine moved other way could use upright bellcrank mounted upright have high speed trigger pulled could also use bellcrank throttle reverser lever change throttle movement within plane reply told George thought throttle direction handle simply Continued page 116 54 Model Aviation Stinson Reliant SR-B Guliwing brings back memories 1930s Golden Age flight Ed Pitman powers HP-40 Itfeatures operating navigation lights flaps doors Note leadout guide under Inboard wing tip Photo author representing ioIaen A90 0 air racing Matnew auers proriie sporriscaic uee ee U Sportster Scratch-bulltat2 totheft with48-in span itcarriesanST-35forpower operated course 3-line throttle control system Photo author Ever wonder some people refer aircraft Me-i 09 some BF-1 09 gan life product Messerschmitts design team working Bavarian Flying Works Augsburg thus original BF 1938 team joined new Masserschmitt company both prefixes acceptable Dick Perry took shot Ray Smiths 1977 Nats winner 0 LOWEST DRAIN WHY PAY big buy high performance *FIREBALL #H30 HOT 3 volts faster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition Just fun stick FIRE BALL great engine runs *advanced98 ............ FLASH STARTING 0 UNEXCELLED POWER LONGER LIFE cr11 1 GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JE35EY 07470 Brashers Rotation Station Are exotic planes worth effort next season two will determine way Combat design will go CL Scale/Gretz continued page 54 small point personal preference fact believe person could become just proficient either mode operation learn either just easily got some own specific reasons prefer ring fly Scale high throttle forward handle said part set up first 3-line system years ago became obvious mounted inverted bellcrank inverted seemingly intended almost engine high throttle position would forward control handles throttle lever same holds true mounting upright bellcrank upright throttle-equipped engines know require throttle pushrod move forward open car buretor except Fox engines often have lever both directions other words modeler uses stock equip ment mounts manufacturer intended mounted would almost cases get high throttle moving handles lever forward way noticed Scale fliers doing Nationals order make system work other way must reverse directions somewhere along line As said can incorporate straight reversing bellcrank arm between engine 3-line bellcrank can mount inverted style bellcrank upright upright style bellcrank inverted although know some control rod hookup problems can also simply loosen throttle arm engines rotate 180 degrees top side carb couldnt see possible advantage Scale flying doing things mentioned seemed natural pull back handles trigger get fast throttle seems natural fast throttle forward fullsize airplane automobile use left hand operate lever top handle thus always fly both hands Perhaps real heart personal preferences matter Im wondering other Carrier fliers normally fly hand using index finger operate trigger feel way can operate throttle precisely through stages scale flight competition Scale flying good share point-getting maneuvers done very near low throttlelike initial takeoff run landing touch-and-go taxi During maneuvers precise coordinated elevator throttle use important prefer trigger back what seem agree comfort able position day after mailed reply letter arrived MA sown Carrier expert respected friend Dick Perry very knowledgeably shed some light Carrier fliers prefer control set-up opposite what normal Scale Dick said looks like disagree little way appropriate direction open throttle 3-line system Its certainly no big thing Carrier requirements just little different Scale way forward openis way real air plane builders it works great two-handed flyingthe way Scale fliers Ive seen Carrier fliers little different generally one-handed few excep tions can fly bigger circle low speed hand use two hands high speed left hand support onlythe right index finger still handles throttle 5075 lbs pull pull-to-open throttle much easier keep open push-to-open rig one-hand operation low-speed throttle action also natural back pressure opens throttle up applied Also properly rigged up elevator condition against stop lines really loose will automatically open throttle bad situation total airplane pull about two pounds So have full story Two different methods two unique events As can see could go on meaningless debate about merits method lets just conclude devoted pilot can get satisfactory results either way know years RC has its Mode throttle right stick Mode II throttle left stick fliers tongue-in-cheek word-war about best Perhaps should divide up two-fisted lever pilots handed trigger pilots Are crazy Mike Gretz Box 162 Montezuma IA 50171 CL Aerobatics/Paul continued page 55 engine catches After plane air fly eye level approximately five feet off ground Have spotter better look see out board wing up down level Have spotter stand downwind facing can see plane coming going have spotter move counterclockwise 90 degrees around circle can watch plane downwind side upwind side Spot plane coming going position looking high low wing time pilot can look excessive yaw observing landing gear inboard gear looks front outboard gear plane goes around circle might too much line rake engine offset Going inverted flight first time new plane always thrill know engine tank setup worked perfectly last plane yesterday always couple large inside loops first downwind try elongated round inside loop long inverted part top what heck go start inside loop inverted flight Now get spotter again check wing high low outboard tip something seems wrong try level upright flight again followed inverted flight right away get spotters feel ings Since cant stop now anyway unless plane flying badly further experiments would dangerous lets go series climbs dives purpose see plane appears nose-heavy tail-heavyfor style offlying plane climbs dives very easily jerk may tail-heavy require nose weight plane seems locked groove level flight probably have too much nose weight may also experience hunting level flight means ship wants climb dive gradually time have keep minutely adjusting handle keep plane level flight seems have mind its own during level flight have keep adjusting wrist/hand/handle maintain constant alti tude quote Olympic Mark VI man Bob Gialdini Old stunt planes dont hunt ask Its because slop slop elevator movement 116 Model Aviation
Edition: Model Aviation - 1979/07
Page Numbers: 54, 116
IT SEEMS February 79 column basics 3-line throttle control systems has unearthed slightly tongue-incheek debate about proper direction high low throttle movement Should throttle lever handle moved ward back yield high throttle Two expert CL Carrier fliers wrote pointing out 3-line fliers event prefer directions opposite diagramed correct scale flying prefer steadfastly recommend Scale high throttle forward control handle Carrier fliers claim back high throttle better event right Undoubtedly both correct respective events exacting demands both competitive challenges produces slightly different equip ment requirements Although column concerns itself Scale event Id like share some recent corre spondence because intriguingfood thought reasoning behind preferred set-ups both letter George Lieb said part read article February Model Aviation about throttle controls would like comment First carrier people hook up throttle pulling trigger gives high throttle seems natural movement way show Just like chain saw drill saber saw soldering gun etc can mount Roberts G-S bellcranks either upright inverted reason having two different types can accommodate engine throttles move either direction planes have inverted style bellcranks mounted upright engine will high throttle trigger pulled throttle engine moved other way could use upright bellcrank mounted upright have high speed trigger pulled could also use bellcrank throttle reverser lever change throttle movement within plane reply told George thought throttle direction handle simply Continued page 116 54 Model Aviation Stinson Reliant SR-B Guliwing brings back memories 1930s Golden Age flight Ed Pitman powers HP-40 Itfeatures operating navigation lights flaps doors Note leadout guide under Inboard wing tip Photo author representing ioIaen A90 0 air racing Matnew auers proriie sporriscaic uee ee U Sportster Scratch-bulltat2 totheft with48-in span itcarriesanST-35forpower operated course 3-line throttle control system Photo author Ever wonder some people refer aircraft Me-i 09 some BF-1 09 gan life product Messerschmitts design team working Bavarian Flying Works Augsburg thus original BF 1938 team joined new Masserschmitt company both prefixes acceptable Dick Perry took shot Ray Smiths 1977 Nats winner 0 LOWEST DRAIN WHY PAY big buy high performance *FIREBALL #H30 HOT 3 volts faster starts #S20 STANDARD 24 volts general use #C15 COOL 15 volts cures pre-ignition Just fun stick FIRE BALL great engine runs *advanced98 ............ FLASH STARTING 0 UNEXCELLED POWER LONGER LIFE cr11 1 GLOW PLUGS SWANSON ASSOCIATES P0 BOX 151WAYNE NEW JE35EY 07470 Brashers Rotation Station Are exotic planes worth effort next season two will determine way Combat design will go CL Scale/Gretz continued page 54 small point personal preference fact believe person could become just proficient either mode operation learn either just easily got some own specific reasons prefer ring fly Scale high throttle forward handle said part set up first 3-line system years ago became obvious mounted inverted bellcrank inverted seemingly intended almost engine high throttle position would forward control handles throttle lever same holds true mounting upright bellcrank upright throttle-equipped engines know require throttle pushrod move forward open car buretor except Fox engines often have lever both directions other words modeler uses stock equip ment mounts manufacturer intended mounted would almost cases get high throttle moving handles lever forward way noticed Scale fliers doing Nationals order make system work other way must reverse directions somewhere along line As said can incorporate straight reversing bellcrank arm between engine 3-line bellcrank can mount inverted style bellcrank upright upright style bellcrank inverted although know some control rod hookup problems can also simply loosen throttle arm engines rotate 180 degrees top side carb couldnt see possible advantage Scale flying doing things mentioned seemed natural pull back handles trigger get fast throttle seems natural fast throttle forward fullsize airplane automobile use left hand operate lever top handle thus always fly both hands Perhaps real heart personal preferences matter Im wondering other Carrier fliers normally fly hand using index finger operate trigger feel way can operate throttle precisely through stages scale flight competition Scale flying good share point-getting maneuvers done very near low throttlelike initial takeoff run landing touch-and-go taxi During maneuvers precise coordinated elevator throttle use important prefer trigger back what seem agree comfort able position day after mailed reply letter arrived MA sown Carrier expert respected friend Dick Perry very knowledgeably shed some light Carrier fliers prefer control set-up opposite what normal Scale Dick said looks like disagree little way appropriate direction open throttle 3-line system Its certainly no big thing Carrier requirements just little different Scale way forward openis way real air plane builders it works great two-handed flyingthe way Scale fliers Ive seen Carrier fliers little different generally one-handed few excep tions can fly bigger circle low speed hand use two hands high speed left hand support onlythe right index finger still handles throttle 5075 lbs pull pull-to-open throttle much easier keep open push-to-open rig one-hand operation low-speed throttle action also natural back pressure opens throttle up applied Also properly rigged up elevator condition against stop lines really loose will automatically open throttle bad situation total airplane pull about two pounds So have full story Two different methods two unique events As can see could go on meaningless debate about merits method lets just conclude devoted pilot can get satisfactory results either way know years RC has its Mode throttle right stick Mode II throttle left stick fliers tongue-in-cheek word-war about best Perhaps should divide up two-fisted lever pilots handed trigger pilots Are crazy Mike Gretz Box 162 Montezuma IA 50171 CL Aerobatics/Paul continued page 55 engine catches After plane air fly eye level approximately five feet off ground Have spotter better look see out board wing up down level Have spotter stand downwind facing can see plane coming going have spotter move counterclockwise 90 degrees around circle can watch plane downwind side upwind side Spot plane coming going position looking high low wing time pilot can look excessive yaw observing landing gear inboard gear looks front outboard gear plane goes around circle might too much line rake engine offset Going inverted flight first time new plane always thrill know engine tank setup worked perfectly last plane yesterday always couple large inside loops first downwind try elongated round inside loop long inverted part top what heck go start inside loop inverted flight Now get spotter again check wing high low outboard tip something seems wrong try level upright flight again followed inverted flight right away get spotters feel ings Since cant stop now anyway unless plane flying badly further experiments would dangerous lets go series climbs dives purpose see plane appears nose-heavy tail-heavyfor style offlying plane climbs dives very easily jerk may tail-heavy require nose weight plane seems locked groove level flight probably have too much nose weight may also experience hunting level flight means ship wants climb dive gradually time have keep minutely adjusting handle keep plane level flight seems have mind its own during level flight have keep adjusting wrist/hand/handle maintain constant alti tude quote Olympic Mark VI man Bob Gialdini Old stunt planes dont hunt ask Its because slop slop elevator movement 116 Model Aviation