GOOD news RC Helicopter fliers John Tucker back writing Choppers column RIC Model Builder like grab latest issues model mag looking helicopter articles look again A/C Model Builder Welcome back John Over past few months some proficient helicopter pilots have no doubt thinking about helicopter autorotations Some now routinely shutting down engines autorotating down soft landings Quite change early days stop-and-go ap proaches landingsremember engine stopped helicopter went pieces Well autorotations might have new American RC Helicopters introduced Commander Helicopter autorotation modification excitement sure youre excited about trying autorotations Mike Mas has some suggestions have condensed writing column first rule successfully autorotating RC helicopter know land cant land helicopter engine running will able successfully land autorotation approach Practice normal landings some distance away since begin practicing autorotations chances landing will within usual landing area may also practice autorotation approach shutting engine off highly recom mended since descent rates about same Mikes second rule follow manufac turers instructions regarding set-up helicopter Mike does recommend good main tenance helicopter particularly regard reducing eliminating serious vibrations addition recommends close attention rotor blade finish has experienced some difference performance between blades simply covered resined smoothly finished Sticking Mikes second rule following typical training flight using American R/C Commander autorotation device Position helicopter begin practice decent forward flight helicopter approximately 75 feet high 100 feet horizontally wind intent descend area close normal landing point front pilot altitude reduce throttle trim point above idle cut-off position quickiy reduce throttle stick idle helicopter will imme diately descend approximately 15 feet pbwer lost negative collective pitch introduced Continued page 106 INITIAL ALTITUDE LOSS AS AUTO DRA WING NOT TO SCALEROTATION BEGINS DUE TO RAPID APPLICATION OF NEGATIVE COLLECTIVE PITCH 75 CYCLIC FLARE BEGINS AT APPROXIMATELY SIX FEET ADD COLLECTIVE FOR NORMAL LANDING AT MINIMUM GROUND SPEED SOME DISTANCE TO FRONTII 4100 OF PILOT October1979 33 Bailey Harris explains helicopter flight group fixed-wIng fliersa different world Prototype autorotation clutch developed Heliboy Miniature Aircraft Supply troductory Price $8995 S 0 .I6606 S 6SS00 0 Expanded Scale Voltmeter checks bat-U Fuel PumpControl Switch spring-load tery condition both Tx Rx ill side avoid spills urn no Gb-Driver adjustable plug vol- uded tages Automatically compensates forU Starter 12 volt supply elec starter fouled plug Checks plug condition 1000 times per second Operates 12 volt battery source included Field Charger Both Tx Rx either quick-charge trickle modesU Completely Inclosed Can mounted Automatic cut-off protects Ni-Cads ht box used separately Completely Solid State Throughout d SASE Free Catalogl 0 FLASH STARTING ANEW ERA PUBLICATION UNEXCELLED POWERAROBATIC AIRPLANG 0 LOWEST DRAIN49 PAGES 8 XII HOTOS LONGER LIFEBY ROST C MORRISON IS DETAILED DRAWINGS GLOW PLUGS ff ofly $395 PLUS qyCATALOGS SIO0REPLA-TECH 2INTERNATIOPIAL INC SWANSON ASSOCIATES WiL43500 MC KENZIE HWY PT 0X 191WONON VIDA OREGON 97489 69 0UTE 29PEOUANNOCX N W ILlS linders must turn around put pushrods back would equal size h-scale Warner cylinders existed What lift tip sugges tions make 7 diameter wheels 1 dia tires So what cooks have bare-bones fuselage weighs 5 poundswe threw away weight nose form ply because ballast will needed anyway achieve CG located 25% chord SHANGRI LA 45-mile haul casualty gas shortage have flying sites com ing out ears lightly loaded crates fly So lovely greensward much nearer high schoola nice big open field neighbors have annoyed noisewe repaired veritable Lafay ette Escadrilie schoolyard-scale types lo behold appeared group Executive Council types including pres Earl Witt exec John Worth bloody orbiting Buzzard Bombshell Srull de lighted impressive flights rubber pro file Japanese Shindena canard fighter put up Aristocrat Albon Dart Diesel Talk about silent flight Ned Kragness about hundred other things didnt tell about MA story some months ago sistership mechanical trim stabilizer numerous full-scale goodies alas balky Cox seen better days Hurst Bowers put up still another Cox running rich bubbledon Dreamy Luton Minor another bubbly Cox Ace pulse rudder thing will take off smooth ground like Peanut gym hand-launched Talk about slow flight scale-like speeds As circled twi light above line fairly distant trees evoked spirit Old Warden way fly whispered Tongue hanging out replied intelligently Yeah yeah Buzzard got sky high big low-wing cruised high Council types watched knowingly said nothing Wonder what thought strange slow motion fly-in strange schoolyard Northern Virginia peaceful VPs watched building little Aristocrat Said forgotten what flying could like everyone relaxed enjoying himself flying whenever wished Hes dedicated competitorwho also wants get back things way doesnt have give up thing can add considerable pleasure hobby fun things just taking RC Scale/Wischers continued page 31 club field attached local flight strip members brought full size Varga Kachina Shinn 21 50A strip examined plane possible scale project mentioned its tiny tail surfaces being liability because nose wheel could lifted take-off rotation until considerable speed built up What appeared first thought detrimental actually desirable feature since plane must have flying speed before lift off chances snap roll takeoff landing less have similar experiences some scale models have small tail surfaces deHavilland racer mentioned earlier exam ple Old time modelers seeing its tiny tail feathers cast doubt its stability has proven case however models handling near stall has exemplary pitch stability problems have occured other models result overly sensitive elevators greater travel necessary Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafiel4 WI 53018 RC Helicopters/Chesney continued page 33 After initial drop-out helicopter will enter autorotation air moving up through blades will keep somewhat constant speed must keep nose down slight amount forward cyclic Keep helicopter moving forward over-control cyclic comands because cyclic input will affect rotor speed goal maintain constant rotor speed rate angle descent landing flare begins about 6 feet flare simply back stick command no collec tive used reduce rate descent forward speed helicopter Ground speed should reduced near zero As flare begins rotor will momentarily overspeed due exposing greater disc area relative wind Take advantage overspeeding increase collective pitch final soft landing altitude three feet either cyclic flares collective pitch given too early stored energy rotor could used up making landing less soft timing very important Simple Right complete rundown autorotating American K/C Commander available Mike Mas American R/C Helicopter 23811 Via Fabricante Suite 102 Mission Viejo CA 92691 youre flying Heliboy contact Gorham Associates SC Modeler Miniature Aircraft Supply information Heliboy autorotating modifications flying tips product review product review product review Super Blue Set-up Aerotrends way introducing new Super Large size Blue Line siliconehigh qualiryfuel tubing Dimensions Super Large 5/32 10 x 3/32 wall .super large tough Tough enough heavy duty fuel pumping electric fuel pumps water cooling applica tions boats spot need superior strength yet flexibility Super Blue Set-up comes prepackaged 5 lengths attached nozzle tour 41 reusable ties convenience Super Large size Blue Line also available 30 reels Re tail Super Blue Set-up $369 per pkg Super Large reel 69c per foot product review product review product review 106 Model Aviation Flight box included 4 Super Blue Set-Ups Aerotrend Products 44 West Prospect St New Haven CT 06515 Speaking Heliboys received list helpful hints additional instructions will prob ably interest owners prospective owners Schluter machine Copies available SC Modeler 1999 West Larkin Avenue Elgin IL 60120 cost fifty cents cover postage printing rm still surprised find clubs area have never seen RC helicopter fly have found members clubs own helicopters have tried fly because help seemingly available Some members North Carolina Helicopter Association have made point visiting clubs demon strating helicopter flight helping prospective helicopter fliers get off ground visit few clubs coming months let know youre available helping newcomers Dave Chesney Rt 9 Box 621A Greensboro NC 27409 Training/Burdin continued page 37 shown high rate turn possible low airspeed shallow banks Steep turns no-no slow flight Remember stalls Also notice sloppiness controls lower airspeeds characteristics relate directly landing pattern good slowflight skills will significant value final piece FLI Level landing pattern opinion learning optimized practicing standard maneuver Therefore landing pattern used FLI rectangular pattern allows student see same picture time may look like pattern works time consuming worth Fig 5 shows pattern Entering initial approach power reduced turn down-wind slow-flight down wind power-off glide started during descending base continues turn finaL Power added final maintain flying speed go-around executed after arriving wings level end runway ready touchdown Ground track should proceed back initial approach another go No touchdown attempted instructor should emphasize smooth con trol ground track consistency friendly reminder stall-recovery procedure will also instill caution during slow flight turns usually local landmarks checkpoints instructor can point out significant benefit establishing consistent pattern FLILEVEL V Task Descriptions Measurement Criteria 1 The student will learn demonstrate ability land aircraft full stop runway also execute touch-and-go landing 2 The student will learn demonstrate ability land aircraft runway unexpected forced landing altitudes low normai traffic patterns 3 The student will practice cross-wind landings possible Discussion Well marbles lineor rather runway quality previous four levels training should really pay off now effort sincerely devoted g1 ~AOtO GeeXOeOt GO \ FLAIR MEG CO BOX 11702 KANSAS CITY MO 64138 PLEASE SEND KITS @ $ ENCLOSE CHECK OR MONEY ORDER MISSOURI RESIDENTS ADD 4125% KANSAS RESIDENTS ADD 3% NAME ADDRESS ___________________________ CITYSTATEZIP ADD $200 FOR SHIPPING Finally -A Definitive Work Electric Propulsion Systems complete resource anyone interested elec tric propulsion Over 100 photos detailed draw ings show models type description can build operate Covers aircraft autos boats solar-powered models Loaded dos donts helpful hints com plete index articles electric propulsion leading US magazines $595 dealer order direct October1979 107 Looking Better Silicone Tubing ti~A BLUE LINE Its Thicker Stronger Highly Heat Resis tant Flexible other fuel lines Whats moreBLUE LINE eith er equal lower price others So dont fooled Remember ask original BLUE LINE tubing Send SASE today free catalog fine productal /Ei7 0/REND 44W Prospect St New Haven Conn 06515 PRODUCTS Avamlable mm b sizes fit appli cation about 59 per ft Shown above SUPER BLUE set upwith extra-large tubing 4 reusable ties & end-of-line nozzles $369 per pkg nM ASTRO FLIGHT IAC PIONEERS IN SILENT FLIGHT 13377 Beach Aye Venice CA 90291
Edition: Model Aviation - 1979/10
Page Numbers: 33, 106, 107
GOOD news RC Helicopter fliers John Tucker back writing Choppers column RIC Model Builder like grab latest issues model mag looking helicopter articles look again A/C Model Builder Welcome back John Over past few months some proficient helicopter pilots have no doubt thinking about helicopter autorotations Some now routinely shutting down engines autorotating down soft landings Quite change early days stop-and-go ap proaches landingsremember engine stopped helicopter went pieces Well autorotations might have new American RC Helicopters introduced Commander Helicopter autorotation modification excitement sure youre excited about trying autorotations Mike Mas has some suggestions have condensed writing column first rule successfully autorotating RC helicopter know land cant land helicopter engine running will able successfully land autorotation approach Practice normal landings some distance away since begin practicing autorotations chances landing will within usual landing area may also practice autorotation approach shutting engine off highly recom mended since descent rates about same Mikes second rule follow manufac turers instructions regarding set-up helicopter Mike does recommend good main tenance helicopter particularly regard reducing eliminating serious vibrations addition recommends close attention rotor blade finish has experienced some difference performance between blades simply covered resined smoothly finished Sticking Mikes second rule following typical training flight using American R/C Commander autorotation device Position helicopter begin practice decent forward flight helicopter approximately 75 feet high 100 feet horizontally wind intent descend area close normal landing point front pilot altitude reduce throttle trim point above idle cut-off position quickiy reduce throttle stick idle helicopter will imme diately descend approximately 15 feet pbwer lost negative collective pitch introduced Continued page 106 INITIAL ALTITUDE LOSS AS AUTO DRA WING NOT TO SCALEROTATION BEGINS DUE TO RAPID APPLICATION OF NEGATIVE COLLECTIVE PITCH 75 CYCLIC FLARE BEGINS AT APPROXIMATELY SIX FEET ADD COLLECTIVE FOR NORMAL LANDING AT MINIMUM GROUND SPEED SOME DISTANCE TO FRONTII 4100 OF PILOT October1979 33 Bailey Harris explains helicopter flight group fixed-wIng fliersa different world Prototype autorotation clutch developed Heliboy Miniature Aircraft Supply troductory Price $8995 S 0 .I6606 S 6SS00 0 Expanded Scale Voltmeter checks bat-U Fuel PumpControl Switch spring-load tery condition both Tx Rx ill side avoid spills urn no Gb-Driver adjustable plug vol- uded tages Automatically compensates forU Starter 12 volt supply elec starter fouled plug Checks plug condition 1000 times per second Operates 12 volt battery source included Field Charger Both Tx Rx either quick-charge trickle modesU Completely Inclosed Can mounted Automatic cut-off protects Ni-Cads ht box used separately Completely Solid State Throughout d SASE Free Catalogl 0 FLASH STARTING ANEW ERA PUBLICATION UNEXCELLED POWERAROBATIC AIRPLANG 0 LOWEST DRAIN49 PAGES 8 XII HOTOS LONGER LIFEBY ROST C MORRISON IS DETAILED DRAWINGS GLOW PLUGS ff ofly $395 PLUS qyCATALOGS SIO0REPLA-TECH 2INTERNATIOPIAL INC SWANSON ASSOCIATES WiL43500 MC KENZIE HWY PT 0X 191WONON VIDA OREGON 97489 69 0UTE 29PEOUANNOCX N W ILlS linders must turn around put pushrods back would equal size h-scale Warner cylinders existed What lift tip sugges tions make 7 diameter wheels 1 dia tires So what cooks have bare-bones fuselage weighs 5 poundswe threw away weight nose form ply because ballast will needed anyway achieve CG located 25% chord SHANGRI LA 45-mile haul casualty gas shortage have flying sites com ing out ears lightly loaded crates fly So lovely greensward much nearer high schoola nice big open field neighbors have annoyed noisewe repaired veritable Lafay ette Escadrilie schoolyard-scale types lo behold appeared group Executive Council types including pres Earl Witt exec John Worth bloody orbiting Buzzard Bombshell Srull de lighted impressive flights rubber pro file Japanese Shindena canard fighter put up Aristocrat Albon Dart Diesel Talk about silent flight Ned Kragness about hundred other things didnt tell about MA story some months ago sistership mechanical trim stabilizer numerous full-scale goodies alas balky Cox seen better days Hurst Bowers put up still another Cox running rich bubbledon Dreamy Luton Minor another bubbly Cox Ace pulse rudder thing will take off smooth ground like Peanut gym hand-launched Talk about slow flight scale-like speeds As circled twi light above line fairly distant trees evoked spirit Old Warden way fly whispered Tongue hanging out replied intelligently Yeah yeah Buzzard got sky high big low-wing cruised high Council types watched knowingly said nothing Wonder what thought strange slow motion fly-in strange schoolyard Northern Virginia peaceful VPs watched building little Aristocrat Said forgotten what flying could like everyone relaxed enjoying himself flying whenever wished Hes dedicated competitorwho also wants get back things way doesnt have give up thing can add considerable pleasure hobby fun things just taking RC Scale/Wischers continued page 31 club field attached local flight strip members brought full size Varga Kachina Shinn 21 50A strip examined plane possible scale project mentioned its tiny tail surfaces being liability because nose wheel could lifted take-off rotation until considerable speed built up What appeared first thought detrimental actually desirable feature since plane must have flying speed before lift off chances snap roll takeoff landing less have similar experiences some scale models have small tail surfaces deHavilland racer mentioned earlier exam ple Old time modelers seeing its tiny tail feathers cast doubt its stability has proven case however models handling near stall has exemplary pitch stability problems have occured other models result overly sensitive elevators greater travel necessary Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafiel4 WI 53018 RC Helicopters/Chesney continued page 33 After initial drop-out helicopter will enter autorotation air moving up through blades will keep somewhat constant speed must keep nose down slight amount forward cyclic Keep helicopter moving forward over-control cyclic comands because cyclic input will affect rotor speed goal maintain constant rotor speed rate angle descent landing flare begins about 6 feet flare simply back stick command no collec tive used reduce rate descent forward speed helicopter Ground speed should reduced near zero As flare begins rotor will momentarily overspeed due exposing greater disc area relative wind Take advantage overspeeding increase collective pitch final soft landing altitude three feet either cyclic flares collective pitch given too early stored energy rotor could used up making landing less soft timing very important Simple Right complete rundown autorotating American K/C Commander available Mike Mas American R/C Helicopter 23811 Via Fabricante Suite 102 Mission Viejo CA 92691 youre flying Heliboy contact Gorham Associates SC Modeler Miniature Aircraft Supply information Heliboy autorotating modifications flying tips product review product review product review Super Blue Set-up Aerotrends way introducing new Super Large size Blue Line siliconehigh qualiryfuel tubing Dimensions Super Large 5/32 10 x 3/32 wall .super large tough Tough enough heavy duty fuel pumping electric fuel pumps water cooling applica tions boats spot need superior strength yet flexibility Super Blue Set-up comes prepackaged 5 lengths attached nozzle tour 41 reusable ties convenience Super Large size Blue Line also available 30 reels Re tail Super Blue Set-up $369 per pkg Super Large reel 69c per foot product review product review product review 106 Model Aviation Flight box included 4 Super Blue Set-Ups Aerotrend Products 44 West Prospect St New Haven CT 06515 Speaking Heliboys received list helpful hints additional instructions will prob ably interest owners prospective owners Schluter machine Copies available SC Modeler 1999 West Larkin Avenue Elgin IL 60120 cost fifty cents cover postage printing rm still surprised find clubs area have never seen RC helicopter fly have found members clubs own helicopters have tried fly because help seemingly available Some members North Carolina Helicopter Association have made point visiting clubs demon strating helicopter flight helping prospective helicopter fliers get off ground visit few clubs coming months let know youre available helping newcomers Dave Chesney Rt 9 Box 621A Greensboro NC 27409 Training/Burdin continued page 37 shown high rate turn possible low airspeed shallow banks Steep turns no-no slow flight Remember stalls Also notice sloppiness controls lower airspeeds characteristics relate directly landing pattern good slowflight skills will significant value final piece FLI Level landing pattern opinion learning optimized practicing standard maneuver Therefore landing pattern used FLI rectangular pattern allows student see same picture time may look like pattern works time consuming worth Fig 5 shows pattern Entering initial approach power reduced turn down-wind slow-flight down wind power-off glide started during descending base continues turn finaL Power added final maintain flying speed go-around executed after arriving wings level end runway ready touchdown Ground track should proceed back initial approach another go No touchdown attempted instructor should emphasize smooth con trol ground track consistency friendly reminder stall-recovery procedure will also instill caution during slow flight turns usually local landmarks checkpoints instructor can point out significant benefit establishing consistent pattern FLILEVEL V Task Descriptions Measurement Criteria 1 The student will learn demonstrate ability land aircraft full stop runway also execute touch-and-go landing 2 The student will learn demonstrate ability land aircraft runway unexpected forced landing altitudes low normai traffic patterns 3 The student will practice cross-wind landings possible Discussion Well marbles lineor rather runway quality previous four levels training should really pay off now effort sincerely devoted g1 ~AOtO GeeXOeOt GO \ FLAIR MEG CO BOX 11702 KANSAS CITY MO 64138 PLEASE SEND KITS @ $ ENCLOSE CHECK OR MONEY ORDER MISSOURI RESIDENTS ADD 4125% KANSAS RESIDENTS ADD 3% NAME ADDRESS ___________________________ CITYSTATEZIP ADD $200 FOR SHIPPING Finally -A Definitive Work Electric Propulsion Systems complete resource anyone interested elec tric propulsion Over 100 photos detailed draw ings show models type description can build operate Covers aircraft autos boats solar-powered models Loaded dos donts helpful hints com plete index articles electric propulsion leading US magazines $595 dealer order direct October1979 107 Looking Better Silicone Tubing ti~A BLUE LINE Its Thicker Stronger Highly Heat Resis tant Flexible other fuel lines Whats moreBLUE LINE eith er equal lower price others So dont fooled Remember ask original BLUE LINE tubing Send SASE today free catalog fine productal /Ei7 0/REND 44W Prospect St New Haven Conn 06515 PRODUCTS Avamlable mm b sizes fit appli cation about 59 per ft Shown above SUPER BLUE set upwith extra-large tubing 4 reusable ties & end-of-line nozzles $369 per pkg nM ASTRO FLIGHT IAC PIONEERS IN SILENT FLIGHT 13377 Beach Aye Venice CA 90291
Edition: Model Aviation - 1979/10
Page Numbers: 33, 106, 107
GOOD news RC Helicopter fliers John Tucker back writing Choppers column RIC Model Builder like grab latest issues model mag looking helicopter articles look again A/C Model Builder Welcome back John Over past few months some proficient helicopter pilots have no doubt thinking about helicopter autorotations Some now routinely shutting down engines autorotating down soft landings Quite change early days stop-and-go ap proaches landingsremember engine stopped helicopter went pieces Well autorotations might have new American RC Helicopters introduced Commander Helicopter autorotation modification excitement sure youre excited about trying autorotations Mike Mas has some suggestions have condensed writing column first rule successfully autorotating RC helicopter know land cant land helicopter engine running will able successfully land autorotation approach Practice normal landings some distance away since begin practicing autorotations chances landing will within usual landing area may also practice autorotation approach shutting engine off highly recom mended since descent rates about same Mikes second rule follow manufac turers instructions regarding set-up helicopter Mike does recommend good main tenance helicopter particularly regard reducing eliminating serious vibrations addition recommends close attention rotor blade finish has experienced some difference performance between blades simply covered resined smoothly finished Sticking Mikes second rule following typical training flight using American R/C Commander autorotation device Position helicopter begin practice decent forward flight helicopter approximately 75 feet high 100 feet horizontally wind intent descend area close normal landing point front pilot altitude reduce throttle trim point above idle cut-off position quickiy reduce throttle stick idle helicopter will imme diately descend approximately 15 feet pbwer lost negative collective pitch introduced Continued page 106 INITIAL ALTITUDE LOSS AS AUTO DRA WING NOT TO SCALEROTATION BEGINS DUE TO RAPID APPLICATION OF NEGATIVE COLLECTIVE PITCH 75 CYCLIC FLARE BEGINS AT APPROXIMATELY SIX FEET ADD COLLECTIVE FOR NORMAL LANDING AT MINIMUM GROUND SPEED SOME DISTANCE TO FRONTII 4100 OF PILOT October1979 33 Bailey Harris explains helicopter flight group fixed-wIng fliersa different world Prototype autorotation clutch developed Heliboy Miniature Aircraft Supply troductory Price $8995 S 0 .I6606 S 6SS00 0 Expanded Scale Voltmeter checks bat-U Fuel PumpControl Switch spring-load tery condition both Tx Rx ill side avoid spills urn no Gb-Driver adjustable plug vol- uded tages Automatically compensates forU Starter 12 volt supply elec starter fouled plug Checks plug condition 1000 times per second Operates 12 volt battery source included Field Charger Both Tx Rx either quick-charge trickle modesU Completely Inclosed Can mounted Automatic cut-off protects Ni-Cads ht box used separately Completely Solid State Throughout d SASE Free Catalogl 0 FLASH STARTING ANEW ERA PUBLICATION UNEXCELLED POWERAROBATIC AIRPLANG 0 LOWEST DRAIN49 PAGES 8 XII HOTOS LONGER LIFEBY ROST C MORRISON IS DETAILED DRAWINGS GLOW PLUGS ff ofly $395 PLUS qyCATALOGS SIO0REPLA-TECH 2INTERNATIOPIAL INC SWANSON ASSOCIATES WiL43500 MC KENZIE HWY PT 0X 191WONON VIDA OREGON 97489 69 0UTE 29PEOUANNOCX N W ILlS linders must turn around put pushrods back would equal size h-scale Warner cylinders existed What lift tip sugges tions make 7 diameter wheels 1 dia tires So what cooks have bare-bones fuselage weighs 5 poundswe threw away weight nose form ply because ballast will needed anyway achieve CG located 25% chord SHANGRI LA 45-mile haul casualty gas shortage have flying sites com ing out ears lightly loaded crates fly So lovely greensward much nearer high schoola nice big open field neighbors have annoyed noisewe repaired veritable Lafay ette Escadrilie schoolyard-scale types lo behold appeared group Executive Council types including pres Earl Witt exec John Worth bloody orbiting Buzzard Bombshell Srull de lighted impressive flights rubber pro file Japanese Shindena canard fighter put up Aristocrat Albon Dart Diesel Talk about silent flight Ned Kragness about hundred other things didnt tell about MA story some months ago sistership mechanical trim stabilizer numerous full-scale goodies alas balky Cox seen better days Hurst Bowers put up still another Cox running rich bubbledon Dreamy Luton Minor another bubbly Cox Ace pulse rudder thing will take off smooth ground like Peanut gym hand-launched Talk about slow flight scale-like speeds As circled twi light above line fairly distant trees evoked spirit Old Warden way fly whispered Tongue hanging out replied intelligently Yeah yeah Buzzard got sky high big low-wing cruised high Council types watched knowingly said nothing Wonder what thought strange slow motion fly-in strange schoolyard Northern Virginia peaceful VPs watched building little Aristocrat Said forgotten what flying could like everyone relaxed enjoying himself flying whenever wished Hes dedicated competitorwho also wants get back things way doesnt have give up thing can add considerable pleasure hobby fun things just taking RC Scale/Wischers continued page 31 club field attached local flight strip members brought full size Varga Kachina Shinn 21 50A strip examined plane possible scale project mentioned its tiny tail surfaces being liability because nose wheel could lifted take-off rotation until considerable speed built up What appeared first thought detrimental actually desirable feature since plane must have flying speed before lift off chances snap roll takeoff landing less have similar experiences some scale models have small tail surfaces deHavilland racer mentioned earlier exam ple Old time modelers seeing its tiny tail feathers cast doubt its stability has proven case however models handling near stall has exemplary pitch stability problems have occured other models result overly sensitive elevators greater travel necessary Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafiel4 WI 53018 RC Helicopters/Chesney continued page 33 After initial drop-out helicopter will enter autorotation air moving up through blades will keep somewhat constant speed must keep nose down slight amount forward cyclic Keep helicopter moving forward over-control cyclic comands because cyclic input will affect rotor speed goal maintain constant rotor speed rate angle descent landing flare begins about 6 feet flare simply back stick command no collec tive used reduce rate descent forward speed helicopter Ground speed should reduced near zero As flare begins rotor will momentarily overspeed due exposing greater disc area relative wind Take advantage overspeeding increase collective pitch final soft landing altitude three feet either cyclic flares collective pitch given too early stored energy rotor could used up making landing less soft timing very important Simple Right complete rundown autorotating American K/C Commander available Mike Mas American R/C Helicopter 23811 Via Fabricante Suite 102 Mission Viejo CA 92691 youre flying Heliboy contact Gorham Associates SC Modeler Miniature Aircraft Supply information Heliboy autorotating modifications flying tips product review product review product review Super Blue Set-up Aerotrends way introducing new Super Large size Blue Line siliconehigh qualiryfuel tubing Dimensions Super Large 5/32 10 x 3/32 wall .super large tough Tough enough heavy duty fuel pumping electric fuel pumps water cooling applica tions boats spot need superior strength yet flexibility Super Blue Set-up comes prepackaged 5 lengths attached nozzle tour 41 reusable ties convenience Super Large size Blue Line also available 30 reels Re tail Super Blue Set-up $369 per pkg Super Large reel 69c per foot product review product review product review 106 Model Aviation Flight box included 4 Super Blue Set-Ups Aerotrend Products 44 West Prospect St New Haven CT 06515 Speaking Heliboys received list helpful hints additional instructions will prob ably interest owners prospective owners Schluter machine Copies available SC Modeler 1999 West Larkin Avenue Elgin IL 60120 cost fifty cents cover postage printing rm still surprised find clubs area have never seen RC helicopter fly have found members clubs own helicopters have tried fly because help seemingly available Some members North Carolina Helicopter Association have made point visiting clubs demon strating helicopter flight helping prospective helicopter fliers get off ground visit few clubs coming months let know youre available helping newcomers Dave Chesney Rt 9 Box 621A Greensboro NC 27409 Training/Burdin continued page 37 shown high rate turn possible low airspeed shallow banks Steep turns no-no slow flight Remember stalls Also notice sloppiness controls lower airspeeds characteristics relate directly landing pattern good slowflight skills will significant value final piece FLI Level landing pattern opinion learning optimized practicing standard maneuver Therefore landing pattern used FLI rectangular pattern allows student see same picture time may look like pattern works time consuming worth Fig 5 shows pattern Entering initial approach power reduced turn down-wind slow-flight down wind power-off glide started during descending base continues turn finaL Power added final maintain flying speed go-around executed after arriving wings level end runway ready touchdown Ground track should proceed back initial approach another go No touchdown attempted instructor should emphasize smooth con trol ground track consistency friendly reminder stall-recovery procedure will also instill caution during slow flight turns usually local landmarks checkpoints instructor can point out significant benefit establishing consistent pattern FLILEVEL V Task Descriptions Measurement Criteria 1 The student will learn demonstrate ability land aircraft full stop runway also execute touch-and-go landing 2 The student will learn demonstrate ability land aircraft runway unexpected forced landing altitudes low normai traffic patterns 3 The student will practice cross-wind landings possible Discussion Well marbles lineor rather runway quality previous four levels training should really pay off now effort sincerely devoted g1 ~AOtO GeeXOeOt GO \ FLAIR MEG CO BOX 11702 KANSAS CITY MO 64138 PLEASE SEND KITS @ $ ENCLOSE CHECK OR MONEY ORDER MISSOURI RESIDENTS ADD 4125% KANSAS RESIDENTS ADD 3% NAME ADDRESS ___________________________ CITYSTATEZIP ADD $200 FOR SHIPPING Finally -A Definitive Work Electric Propulsion Systems complete resource anyone interested elec tric propulsion Over 100 photos detailed draw ings show models type description can build operate Covers aircraft autos boats solar-powered models Loaded dos donts helpful hints com plete index articles electric propulsion leading US magazines $595 dealer order direct October1979 107 Looking Better Silicone Tubing ti~A BLUE LINE Its Thicker Stronger Highly Heat Resis tant Flexible other fuel lines Whats moreBLUE LINE eith er equal lower price others So dont fooled Remember ask original BLUE LINE tubing Send SASE today free catalog fine productal /Ei7 0/REND 44W Prospect St New Haven Conn 06515 PRODUCTS Avamlable mm b sizes fit appli cation about 59 per ft Shown above SUPER BLUE set upwith extra-large tubing 4 reusable ties & end-of-line nozzles $369 per pkg nM ASTRO FLIGHT IAC PIONEERS IN SILENT FLIGHT 13377 Beach Aye Venice CA 90291