corge Myers HELICOPTER TIME After few years procrastination finally used chunk modeling budget purchase helicopter Series 80 Heliboy Schiuter necessary accessories has converted directly beginner again As purely personal prediction see helicopters will soon become dominant RC field least Metropolitan areas Free-flight gave way U-control fields became smaller U-control gave way RC tech nology improved point small fields could safely used RC fields have continued shrink disappear Balsa wood prices have zoomed over $100 per cubic foot Inevitably helicopter kit prices will compete directly kit prices aircraft happens switch helicopters assured Model airplanes propellers appeal World War generation children would prefer models ofjets noise flame realistic simulation doesnt belong small field residential community What else new Helicopters thats what 240 Robert TV flown lady no less real cops-and-robbers activity remember Hanna Reitch died just last year lady flew Focke-Wulftwin-rotor helicopter Berlin Deutschland-Halle stadium 1938 thanks Kurt Reupke remind ing doubt helicopters have taken interest Juniors look opening scenes movie Apocalypse Now try assess impact young minds Enough sales pitch have approached time time say few things about radio installations helicopters Without personal experience nothing say As rank beginner still havent much contribute However personal experience allows second some things others have said instance say use Loctite bolt mean bolt first time Iran engine throttle-stop screw fell out jamnut still attached put back screws holding throttle body crankcase fell out put Loctite screw airframe instructions dictated instruc tions didnt say anything about engine Surprise radio installation made according kit instructions Fig 2 except put drop Hot Stuff tip screw held servo place None have moved radio antenna wasnt mentioned ran out side cabin back tip horizontal fin retained small rubber band aircraft practice As precau tion against fretting wrapped cylinder wing sealing tape around antenna point exits cabin hasnt failed yet after observing beating rotor imposes antenna next move will put inside load-bearing tube such inner Nyrod Ive told antennas have known fail cabin end Two subjects inadequately covered building instructions final adjustments trim bought kit local dealer Lany Davidson Larrys Hobbies located Jericho Tpke East Northport NY Larry accomplished RC helicopter pilot agreements part purchase price Larry would assist getting machine adjusted trimmed Fig 1 Before job completed Larry put over 4 hours effort Another flying buddy Joe Redan VP-sales Plessey Electronics spent couple hours practical aspects helicopter flying put touch couple ofhis friends have lots such experience mention friends show dont have go Out smash machine against ground until get right quit Help available just ask politely value indicated fact have struggling month planned hour per day practice weather permitting am still using same main rotor blades tail rotor blades havent fared well found lot clues adjustments re reading Dave Chesneys column Walt Schoonards before Dave back issues ModelAviation RCM articles seminars published mid-1970s also proved helpful now cared enough read might enjoy too ready start helicopters Just start things Larrys starting procedure good little unexpected stiff-wing pilot Ill share 1 Turn receiver look servos theyre moving someone else using frequency have some kind problem 2 Turn transmitter move controls Make sure everything moves should set Low throttle throttle trim 3 Stand helicopter skid get firm grip Main Rotor Hub 4 Connect glow-plug driver turn use giow-plug driver because helicopter motors run little wetter airplane practice driver takes care flooding problems 5 Engage starter start motor Keep tight grip main rotor because might want spin 6 Disconnect driver step off skids pick up helicopter still holding main rotor transmitter Walk out helipad set down May 1980 21 NY O&i ui uenrniis urnaneo wnen guying arry mis service instruction gets started right 7 Run up rotor check tip tracking control operations prepare lift off Always lift off helicopter facing wind possible minimize weather vaning tendencies Training gear various types has described Hula-Hoops Golf-Balls-on-a-Dowel flying buddies Vince Pacifico founder president Whitman Flyers everything imaginable including re-stringing tennis rackets offered bag used tennis balls son Tim came up something simpler Peanut-Butter Captain Crunch breakfast cereal comes prize inside called Spring Shot plastic ball part game pushes neatly over end 5/16 dowel about size golf ball lighter price right Ive holding dowels skids helicopter plastic ~tie-wraps available electronic store made purpose bundling wires cables probability tie-wraps come garbage bags would also job frequency streamer end antenna accident looking place happen rotor bound suck sometime club rules insist streamer put base antenna near box change rule Since flying close transmitter may tempted operate partiallycollapsed antenna isn tparticularly clever output stage transmitter can easily blow transistor underloaded way tail rotor control did lot drifting would take helicopter out nice warm house start flying Tail rotor trim normal As rig cooled down control would drift right 1 blamed servo reverser using Removing reverser caused drift operate left Aha problem RC system Leave whole thing out car overnight stabilize lower temperature Now can reset tail rotor adjustments dont drift blame can firmly placed RC system Guess what didnt work drift went both ways Another flying buddy Tom Hunt figured tall rotor drive must slipping kept changing pitch tail rotor could see pitch changed rotor turning couldnt make system behave took tail rotor drive apart found set screws burned path around drive shaft Loctite holding fine setscrew needs big flat shaft lean Thats fixed now Once don t guess-test bend tail rotor blades parallel can see well pitch control returns zero observing angle change between blades Fig 3 found lot slop system blades could stop anywhere range 10 degrees Tracing back problem found flexing pushrod Z bend pur pose reversing control direction problem fixed addition plastic guide sheet Fig 4 suspect control forces helicopters may somewhat higher air craft havent done measurements prove Whatever case may using Z bend anywhere remember include pushrod guide controls side-to-side flexing point experience find myself getting fly helicopter both hands occasionally lead conclude singie-stick control would lead faster learning Also flying airplanes twin-stick transmitter will less likelihood mistakes plan design transmitter arrangement speci fically helicopter problem using elements ACE R/C Silver 7 system building blocks interested project have some suggestions derived greater experience let know about results will published column contributions will acknowledged may some wondering Old George going take over helicopter column now Nope Im going turn back few pages read what Dave Chesney has say Ive reading column very carefully some time has very helpful urge likewise Keep letters coming 22 Model Aviation Fig 2 slotcutthroughthe servotray givesacces rthO ri hold receiver Similar rubber bands hold battery place structural rail bottom helicopter Loose foam keep vibration damaging anything trouble-making Z bend can seen view along plastic sheet pushrod guide eliminated problem Fig 3 tail rotor blades Ileliboy pivoted hub can rotate 90 degrees flying positions check slop control system condition working rudder servo causes wave back forth like garden gate come rest different positions coming left right difference stopping positions measure slop system Eyeballing good enough column George Myers 70Froehlich Farm Road Hicks ville NY 11801 Fig 4 Whenever use Z bend pushrod rod tries move side-to-side under load close-fitting guide needed prevent motion Design guide can varied fit need used Heliboy sheet plastic
Edition: Model Aviation - 1980/05
Page Numbers: 21, 22
corge Myers HELICOPTER TIME After few years procrastination finally used chunk modeling budget purchase helicopter Series 80 Heliboy Schiuter necessary accessories has converted directly beginner again As purely personal prediction see helicopters will soon become dominant RC field least Metropolitan areas Free-flight gave way U-control fields became smaller U-control gave way RC tech nology improved point small fields could safely used RC fields have continued shrink disappear Balsa wood prices have zoomed over $100 per cubic foot Inevitably helicopter kit prices will compete directly kit prices aircraft happens switch helicopters assured Model airplanes propellers appeal World War generation children would prefer models ofjets noise flame realistic simulation doesnt belong small field residential community What else new Helicopters thats what 240 Robert TV flown lady no less real cops-and-robbers activity remember Hanna Reitch died just last year lady flew Focke-Wulftwin-rotor helicopter Berlin Deutschland-Halle stadium 1938 thanks Kurt Reupke remind ing doubt helicopters have taken interest Juniors look opening scenes movie Apocalypse Now try assess impact young minds Enough sales pitch have approached time time say few things about radio installations helicopters Without personal experience nothing say As rank beginner still havent much contribute However personal experience allows second some things others have said instance say use Loctite bolt mean bolt first time Iran engine throttle-stop screw fell out jamnut still attached put back screws holding throttle body crankcase fell out put Loctite screw airframe instructions dictated instruc tions didnt say anything about engine Surprise radio installation made according kit instructions Fig 2 except put drop Hot Stuff tip screw held servo place None have moved radio antenna wasnt mentioned ran out side cabin back tip horizontal fin retained small rubber band aircraft practice As precau tion against fretting wrapped cylinder wing sealing tape around antenna point exits cabin hasnt failed yet after observing beating rotor imposes antenna next move will put inside load-bearing tube such inner Nyrod Ive told antennas have known fail cabin end Two subjects inadequately covered building instructions final adjustments trim bought kit local dealer Lany Davidson Larrys Hobbies located Jericho Tpke East Northport NY Larry accomplished RC helicopter pilot agreements part purchase price Larry would assist getting machine adjusted trimmed Fig 1 Before job completed Larry put over 4 hours effort Another flying buddy Joe Redan VP-sales Plessey Electronics spent couple hours practical aspects helicopter flying put touch couple ofhis friends have lots such experience mention friends show dont have go Out smash machine against ground until get right quit Help available just ask politely value indicated fact have struggling month planned hour per day practice weather permitting am still using same main rotor blades tail rotor blades havent fared well found lot clues adjustments re reading Dave Chesneys column Walt Schoonards before Dave back issues ModelAviation RCM articles seminars published mid-1970s also proved helpful now cared enough read might enjoy too ready start helicopters Just start things Larrys starting procedure good little unexpected stiff-wing pilot Ill share 1 Turn receiver look servos theyre moving someone else using frequency have some kind problem 2 Turn transmitter move controls Make sure everything moves should set Low throttle throttle trim 3 Stand helicopter skid get firm grip Main Rotor Hub 4 Connect glow-plug driver turn use giow-plug driver because helicopter motors run little wetter airplane practice driver takes care flooding problems 5 Engage starter start motor Keep tight grip main rotor because might want spin 6 Disconnect driver step off skids pick up helicopter still holding main rotor transmitter Walk out helipad set down May 1980 21 NY O&i ui uenrniis urnaneo wnen guying arry mis service instruction gets started right 7 Run up rotor check tip tracking control operations prepare lift off Always lift off helicopter facing wind possible minimize weather vaning tendencies Training gear various types has described Hula-Hoops Golf-Balls-on-a-Dowel flying buddies Vince Pacifico founder president Whitman Flyers everything imaginable including re-stringing tennis rackets offered bag used tennis balls son Tim came up something simpler Peanut-Butter Captain Crunch breakfast cereal comes prize inside called Spring Shot plastic ball part game pushes neatly over end 5/16 dowel about size golf ball lighter price right Ive holding dowels skids helicopter plastic ~tie-wraps available electronic store made purpose bundling wires cables probability tie-wraps come garbage bags would also job frequency streamer end antenna accident looking place happen rotor bound suck sometime club rules insist streamer put base antenna near box change rule Since flying close transmitter may tempted operate partiallycollapsed antenna isn tparticularly clever output stage transmitter can easily blow transistor underloaded way tail rotor control did lot drifting would take helicopter out nice warm house start flying Tail rotor trim normal As rig cooled down control would drift right 1 blamed servo reverser using Removing reverser caused drift operate left Aha problem RC system Leave whole thing out car overnight stabilize lower temperature Now can reset tail rotor adjustments dont drift blame can firmly placed RC system Guess what didnt work drift went both ways Another flying buddy Tom Hunt figured tall rotor drive must slipping kept changing pitch tail rotor could see pitch changed rotor turning couldnt make system behave took tail rotor drive apart found set screws burned path around drive shaft Loctite holding fine setscrew needs big flat shaft lean Thats fixed now Once don t guess-test bend tail rotor blades parallel can see well pitch control returns zero observing angle change between blades Fig 3 found lot slop system blades could stop anywhere range 10 degrees Tracing back problem found flexing pushrod Z bend pur pose reversing control direction problem fixed addition plastic guide sheet Fig 4 suspect control forces helicopters may somewhat higher air craft havent done measurements prove Whatever case may using Z bend anywhere remember include pushrod guide controls side-to-side flexing point experience find myself getting fly helicopter both hands occasionally lead conclude singie-stick control would lead faster learning Also flying airplanes twin-stick transmitter will less likelihood mistakes plan design transmitter arrangement speci fically helicopter problem using elements ACE R/C Silver 7 system building blocks interested project have some suggestions derived greater experience let know about results will published column contributions will acknowledged may some wondering Old George going take over helicopter column now Nope Im going turn back few pages read what Dave Chesney has say Ive reading column very carefully some time has very helpful urge likewise Keep letters coming 22 Model Aviation Fig 2 slotcutthroughthe servotray givesacces rthO ri hold receiver Similar rubber bands hold battery place structural rail bottom helicopter Loose foam keep vibration damaging anything trouble-making Z bend can seen view along plastic sheet pushrod guide eliminated problem Fig 3 tail rotor blades Ileliboy pivoted hub can rotate 90 degrees flying positions check slop control system condition working rudder servo causes wave back forth like garden gate come rest different positions coming left right difference stopping positions measure slop system Eyeballing good enough column George Myers 70Froehlich Farm Road Hicks ville NY 11801 Fig 4 Whenever use Z bend pushrod rod tries move side-to-side under load close-fitting guide needed prevent motion Design guide can varied fit need used Heliboy sheet plastic