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Radio Control: Helicopters

Author: P. Tradelius


Edition: Model Aviation - 1995/03
Page Numbers: 108, 109

RADIO CONTROL HELICOPTERS FOR YEARS CURTIS YOUNGBLOOD has renowned best overall model helicopter pilot world excelling both freestyle aerobatics precision FAI maneuvers However wasnt until opportunity see Curtis compete Nats knew secret success FAI may obvious say Curtis flies differently others since continues win almost contest enters truth matter really does fly differently other competitors As began hovering maneuvers could see what really doing flying formation ground explain spent years flying fighters Air Force some time spent teaching formation flying idea behind flying formation wingman maintain specific position relative lead maintaining position rather hard first learning effect wingman flying large bubble trying refine control movements reduce size bubble has understand master several formationflying techniques first know out position may seem rather obvious pilot should know out position objective concentrate lead know immediate/v out position rather realizing ten feet out position next step make immediate aggressive control input 1 keep getting further out position 2 start moving back correct position further complicate matters flying formation must perfected three axes maintain specific position us have seen great displays formation flying Air Force Thunderbirds what people dont realize wingmen never perfect position always striving get put numbers new formation pilot may striving maintain 30-foot bubble good formation pilot can maintain 5-foot bubble Thunderbird pilot can maintain 2-foot bubble may well good want fly formation does relate Curtis flying turns out uses exact same techniques flying formation ground Remember first step know immediately out position takes great deal concentration really looking atnot just seeingyour helicopter hovering constantly looking slightest change altitude change attitude will produce change hover position Notice say change attitude will produce change hover posihon Lets look closely Assume helicopter good hover position whatever reason nose dips down 10 situation shown Figure 1 resultant force moving helicopter forward equal sine 10 times lift rotor system have 10pound helicopter lift rotor system must also 10 pounds maintain altitude calculates 175 lb force small force will move helicopter left act over finite period time pilot can immediately see 10 change pitch attitude make immediate correction helicopter will remain desired hover position what mean change helicopter attitude producing corresponding change helicopter hover position what Curtis does well really look helicopter know slightly out desired hover position makes immediate aggressive control correction return helicopter its desired attitude before smallest resulting forces has chance take effect helicopter know does watching helicopter control inputs very quick aggressive almost disregarding smoothness Pilots competing against Curtis seem let helicopters get farther out desired hover position before making control input concerned smoothness control rather aggressive correction helicopter farther out position longer period time say Curtis almost disregards smoothnesshe interested making immediate aggressive control correction resulting helicopter correcting two degrees very quickly first things will notice try apply principles hover helicopter fly formation fighter will mentally drained very short period time takes lot concentration really look helicopter see 10 movement make immediate aggressive control input start process over again always striving see helicopter better can see helicopter better can make control inputs quickly Most us dont care put tremendous amount effort improve hovering effect accept larger bubble same bubble applies maneuver fly really position want just close enough Ask yourself large bubble really want put forth effort make smaller can desire strong enough New Products have found Boca Bearing 7040 W Palmetto Park Rd Suite 2304 Boca Raton FL 33433 excellent source virtually engine helicopter bearing needs cases helicopter manufacturers will keep cost products down replacing bearings bushings fine 108 Model Aviation X-Cell sitting atop Crusader Toys new folding table Great fueling field repairs engine starting etc T&T Engineerings outstanding new all-metal X-Cell head Base flybar setup stand paddle adjuster background average flier under circumstances should decide upgrade ball bearings just about anything could want readily available Boca Bearing cases have researched bearing needs specific helicopters offer complete bearing upgrade package ease ordering also offer Midas Touch T/R grease maximum lubrication tail rotors Midas Touch Air Power treatment fuel Crusader Toys Box 297 Grenada CA 96038 hand-making unique useful folding table used flying field support helicopter field box other equipment table made wood looks like piece fine furniture comes ready sealed painted desire folds flat storage transport unfolded provides usable stand helicopter support equipment keep well off ground refueling/starting field maintenance cradles shown use airplanes can easily removed upper tray added useful feature basic table table may seem such innovation first glance once use youll surprised much nicer get helicopter yourself off ground T&T Engineering 1715 W 130th St Suite B Gardena CA 90249 offering excellently machined aftermarket items helicopter photo shows all-metal head X-Cell unfortunately photo doesnt justice beauty fine workmanship head comes complete package ready use bearings original head others can ordered Boca Bearing mentioned above head extremely rugged very tight very precise hovering 3D flying head shown T&T setup stand paddle adjusters completely adjust flybar paddles prior installation helicopter setup much precise what can obtained helicopter since stand holds head flybar perfect position shown T&T s machined metal tail rotor grips provide increased strength help reduce slop tail rotor particularly useful 3D backward maneuvers also offer excellently machined anodized starter extension uses one-way bearing universal joint allows off-center starting one-way bearing firmly grips adaptor start shaft easily released engine started reducing possibility starter extension hurting canopy other mechanics head rior Aircraft Materials Qilality Balsa Since 1974 12020-G Centralia Hawaiian Gardens CA 90716 Orders Only 800-4889525 Information 310865-3220 FAX 310 860-0327 Cheeks Visa/Master Charge COD SASE complete price list Prices Subject Change BALSA WOOD STICKSBALSA SHEETSBIRCH PLYWOODLflE PLYWOOD SPRUCE AND BASSWOOD AVAILABLE-1/64x 12x 122351/616112120119112112110 1116-INCH 38 483116-INCH 36 481-INCH39 483-INCH36 481/641121244251/81121122401/81 121 24190 l/161 1/18 093/1613/16 12 19'19 129 391/321339 531/64x 121498501/Sx 12x244651/8112148350 1/9x12x49935 1/1613/32 093/1611/419 26332k 132431/161339531/64x461493361TRAILING EDGE l/16,1/6 10 143/1913/916 26l/9x 135473/32x33/161611212036 48 111613/16 10 153/1611/2 22 313/161137 1/913~113216112753/161 12x 12215 3116x36990 1/1611/410153/1613/426421/4145671/413651151/321121121453/lOx 121244451/611/22532 3/91155755/1613961351/321 12242653/161121486253/1613/43043 1/161 1/2 15 211/4-INCH 36 481/4x13558 1/16x3/6 11 161/2195 993/913102 1501/32x 121465501/4x6x 12loS6/1611-1/44565 1/16x3/422301/4x1/415261/2x31351851/41121122153/911-1/24977 1/413/623292-INCH3648 3132-INCH36481/4x1/225351/3212334-INCH36481/1616113601/412243401/21279 ..... 1/16112112 155 1/4112140 635 3/413 155 3/3213/32 09 12 1/4,3/4 36 50 1/1612 33 44 1/3214 55 79 1/16x 12x24 295 3/321 1/910145/16-INCH 36 483/321240 531/16x 459 791/161 12x495353/61 12x 1224038 TRIANGLES 3/3213/161116---3/321473 98-________3/9112124465 3/3211/412185/1615/1623 301/9,493 1153/61121488901/4x1/425 3/3213/913 205/1613/825321612506516x497135 32161121153/913/930 5/1611/230391/4260791/4141351553/321121122201/21121122901/2xl/235 3/321/2 17 225/1613/4 42 563/91278 1053/914185 2473/321121244251/2x12x244953/413/449 3/3213/425331/2x2951251/2142492903212x467501/2x12x4097011160 3/S-INCH3648 1/9-INCH 36 48 3/913/9303936 BALSA PLANKS 1/611/909 123/9x1/235 49I1190 1/9x1/4121900LL12160 1/613/1612163/913/44658 Dowel ruuusssF1AEnE240 1/8x3/913191/2-INCH3648I14315 18241/2x 1/242 soBagging212245 1/613/425351/213/45272evacuum0 530 * DOUBLE Balsa Wood Prices For313575 314799 Spruce Basswood Sticks EVERY SIZE & SHAPE AVAILABLE BARGAIN & CONTEST GRADES CA EPOXY March 1995 109 Figure 1

Author: P. Tradelius


Edition: Model Aviation - 1995/03
Page Numbers: 108, 109

RADIO CONTROL HELICOPTERS FOR YEARS CURTIS YOUNGBLOOD has renowned best overall model helicopter pilot world excelling both freestyle aerobatics precision FAI maneuvers However wasnt until opportunity see Curtis compete Nats knew secret success FAI may obvious say Curtis flies differently others since continues win almost contest enters truth matter really does fly differently other competitors As began hovering maneuvers could see what really doing flying formation ground explain spent years flying fighters Air Force some time spent teaching formation flying idea behind flying formation wingman maintain specific position relative lead maintaining position rather hard first learning effect wingman flying large bubble trying refine control movements reduce size bubble has understand master several formationflying techniques first know out position may seem rather obvious pilot should know out position objective concentrate lead know immediate/v out position rather realizing ten feet out position next step make immediate aggressive control input 1 keep getting further out position 2 start moving back correct position further complicate matters flying formation must perfected three axes maintain specific position us have seen great displays formation flying Air Force Thunderbirds what people dont realize wingmen never perfect position always striving get put numbers new formation pilot may striving maintain 30-foot bubble good formation pilot can maintain 5-foot bubble Thunderbird pilot can maintain 2-foot bubble may well good want fly formation does relate Curtis flying turns out uses exact same techniques flying formation ground Remember first step know immediately out position takes great deal concentration really looking atnot just seeingyour helicopter hovering constantly looking slightest change altitude change attitude will produce change hover position Notice say change attitude will produce change hover posihon Lets look closely Assume helicopter good hover position whatever reason nose dips down 10 situation shown Figure 1 resultant force moving helicopter forward equal sine 10 times lift rotor system have 10pound helicopter lift rotor system must also 10 pounds maintain altitude calculates 175 lb force small force will move helicopter left act over finite period time pilot can immediately see 10 change pitch attitude make immediate correction helicopter will remain desired hover position what mean change helicopter attitude producing corresponding change helicopter hover position what Curtis does well really look helicopter know slightly out desired hover position makes immediate aggressive control correction return helicopter its desired attitude before smallest resulting forces has chance take effect helicopter know does watching helicopter control inputs very quick aggressive almost disregarding smoothness Pilots competing against Curtis seem let helicopters get farther out desired hover position before making control input concerned smoothness control rather aggressive correction helicopter farther out position longer period time say Curtis almost disregards smoothnesshe interested making immediate aggressive control correction resulting helicopter correcting two degrees very quickly first things will notice try apply principles hover helicopter fly formation fighter will mentally drained very short period time takes lot concentration really look helicopter see 10 movement make immediate aggressive control input start process over again always striving see helicopter better can see helicopter better can make control inputs quickly Most us dont care put tremendous amount effort improve hovering effect accept larger bubble same bubble applies maneuver fly really position want just close enough Ask yourself large bubble really want put forth effort make smaller can desire strong enough New Products have found Boca Bearing 7040 W Palmetto Park Rd Suite 2304 Boca Raton FL 33433 excellent source virtually engine helicopter bearing needs cases helicopter manufacturers will keep cost products down replacing bearings bushings fine 108 Model Aviation X-Cell sitting atop Crusader Toys new folding table Great fueling field repairs engine starting etc T&T Engineerings outstanding new all-metal X-Cell head Base flybar setup stand paddle adjuster background average flier under circumstances should decide upgrade ball bearings just about anything could want readily available Boca Bearing cases have researched bearing needs specific helicopters offer complete bearing upgrade package ease ordering also offer Midas Touch T/R grease maximum lubrication tail rotors Midas Touch Air Power treatment fuel Crusader Toys Box 297 Grenada CA 96038 hand-making unique useful folding table used flying field support helicopter field box other equipment table made wood looks like piece fine furniture comes ready sealed painted desire folds flat storage transport unfolded provides usable stand helicopter support equipment keep well off ground refueling/starting field maintenance cradles shown use airplanes can easily removed upper tray added useful feature basic table table may seem such innovation first glance once use youll surprised much nicer get helicopter yourself off ground T&T Engineering 1715 W 130th St Suite B Gardena CA 90249 offering excellently machined aftermarket items helicopter photo shows all-metal head X-Cell unfortunately photo doesnt justice beauty fine workmanship head comes complete package ready use bearings original head others can ordered Boca Bearing mentioned above head extremely rugged very tight very precise hovering 3D flying head shown T&T setup stand paddle adjusters completely adjust flybar paddles prior installation helicopter setup much precise what can obtained helicopter since stand holds head flybar perfect position shown T&T s machined metal tail rotor grips provide increased strength help reduce slop tail rotor particularly useful 3D backward maneuvers also offer excellently machined anodized starter extension uses one-way bearing universal joint allows off-center starting one-way bearing firmly grips adaptor start shaft easily released engine started reducing possibility starter extension hurting canopy other mechanics head rior Aircraft Materials Qilality Balsa Since 1974 12020-G Centralia Hawaiian Gardens CA 90716 Orders Only 800-4889525 Information 310865-3220 FAX 310 860-0327 Cheeks Visa/Master Charge COD SASE complete price list Prices Subject Change BALSA WOOD STICKSBALSA SHEETSBIRCH PLYWOODLflE PLYWOOD SPRUCE AND BASSWOOD AVAILABLE-1/64x 12x 122351/616112120119112112110 1116-INCH 38 483116-INCH 36 481-INCH39 483-INCH36 481/641121244251/81121122401/81 121 24190 l/161 1/18 093/1613/16 12 19'19 129 391/321339 531/64x 121498501/Sx 12x244651/8112148350 1/9x12x49935 1/1613/32 093/1611/419 26332k 132431/161339531/64x461493361TRAILING EDGE l/16,1/6 10 143/1913/916 26l/9x 135473/32x33/161611212036 48 111613/16 10 153/1611/2 22 313/161137 1/913~113216112753/161 12x 12215 3116x36990 1/1611/410153/1613/426421/4145671/413651151/321121121453/lOx 121244451/611/22532 3/91155755/1613961351/321 12242653/161121486253/1613/43043 1/161 1/2 15 211/4-INCH 36 481/4x13558 1/16x3/6 11 161/2195 993/913102 1501/32x 121465501/4x6x 12loS6/1611-1/44565 1/16x3/422301/4x1/415261/2x31351851/41121122153/911-1/24977 1/413/623292-INCH3648 3132-INCH36481/4x1/225351/3212334-INCH36481/1616113601/412243401/21279 ..... 1/16112112 155 1/4112140 635 3/413 155 3/3213/32 09 12 1/4,3/4 36 50 1/1612 33 44 1/3214 55 79 1/16x 12x24 295 3/321 1/910145/16-INCH 36 483/321240 531/16x 459 791/161 12x495353/61 12x 1224038 TRIANGLES 3/3213/161116---3/321473 98-________3/9112124465 3/3211/412185/1615/1623 301/9,493 1153/61121488901/4x1/425 3/3213/913 205/1613/825321612506516x497135 32161121153/913/930 5/1611/230391/4260791/4141351553/321121122201/21121122901/2xl/235 3/321/2 17 225/1613/4 42 563/91278 1053/914185 2473/321121244251/2x12x244953/413/449 3/3213/425331/2x2951251/2142492903212x467501/2x12x4097011160 3/S-INCH3648 1/9-INCH 36 48 3/913/9303936 BALSA PLANKS 1/611/909 123/9x1/235 49I1190 1/9x1/4121900LL12160 1/613/1612163/913/44658 Dowel ruuusssF1AEnE240 1/8x3/913191/2-INCH3648I14315 18241/2x 1/242 soBagging212245 1/613/425351/213/45272evacuum0 530 * DOUBLE Balsa Wood Prices For313575 314799 Spruce Basswood Sticks EVERY SIZE & SHAPE AVAILABLE BARGAIN & CONTEST GRADES CA EPOXY March 1995 109 Figure 1

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