DO YOU LIKE trim out new airplane dont Rather have kind airplane about designer reports flew right off drawing board mostly seem have other kind As sat trying puzzle out what to sort out idiosyncrasies newest airplane decided make hassles partly pay themselves writing about column will complete trim new airplane article rather explanation some things try order get Out miseries bit easier first thing noticed about airplane was nose-heavy use enormous el evator deflections loop ready landed Sure enough ran Out Up elevator just before touchdown typical noseheavy airplane Fortunately small amount vertical sink didnt hurt anything find yourself airborne noseheavy airplane try keep speed up bit normal dont drop throttle way idle until airplane foot above ground will reduce amount eleva tor required flare until its close enough ground able drop damage After lots tail weight added what strange feeling add tail weight ready next flight add tail weight careful much add because tail-heavy airplane much exciting fly nose-heavy next thing noted about new airplane severe yaw hard aileron in0 Figure 1 can get differential aileron action Up Down several ways simplest bend aileron horn forward tips trimming column o _______________________ t 0. Figure 2 Another way get differential aileron action use different set holes ail eron servo wheel connect pushrods shown puts applied Oh-oh old adverse yaw problem happens because designs down-going aileron creates drag up-going roll right com manded left aileron goes down right goes up equal aileron deflections left aileron causes drag tends make airplane yaw left An airplane yaws its left rolling right isnt very pretty sight especially noticeable Split S vertical rolls Yuck Fortunately condition easy fix arc several mechanical ways apply aileron dif ferential easiest solution strip ailerons low-wing airplane bend aileron Z link forward shown Figure 1 Almost sim ple strip other types ailerons attach pushrod aileron servo shown Fig ure 2 Obviously first technique causes same amount servo output result differ ent control response direction versus other second technique results less servo Out put direction versus other two techniques can combined airplanes requir ing significant aileron differential Keep increas ing aileron differential until airplane stops yawing left attempt roll 48 Model Aviation Raio Control Sport Aerobatics Ron Van Putte I Sleepy Oaks Rd Ft Walton Beach FL 32548 Theres no doubt owns airplane Ivan Kristensens Summit II hit com petitors Everyone wants see layout gear inside fuselage Ed Keck Webster NY has Pattern flier over 20 years received special award 1987 Masters Tournament having competed date Hes shown FAI plane meet Jacksonville FL right vertical climb course owners phisticated radio systems can dial aileron dif ferential transmitter use two aileron servos thats what did air plane Just read instruction book comes radio Now ready try some point rollsI love Four Point Roll perform rolls right airplane approached first point eased left rudder Whoa What airplane pitched down away canopy rolled right Experienced Pattern pilots will tell bad scene Its cause two nasty things happening two different reasons way Id airplane level flight applied left rudder would have pitched down rolled right too Whats wrong first symptom pitching application rudder very complicated doesnt always result same set inputs involves engine thrust line incidence angles wing horizontal stabilizer vertical arrangement wing stabi lizer Fortunately fix will generally alleviate problem airplane pitches down ap plication rudder lower both ailerons like flaps Conversely pitches up rudder input raise both ailerons Okay now what about rolling motion rudder applied put left rudder airplane rolls right wing doesnt have enough dihedral Ouch tough sort out havent nerve what re quired just yet lived closer Don Lowe Id finished What have to saw through top wing flow some epoxy sit weight center section wing tips blocked up epoxy cures Ill put fiberglass patch across top cen ter section restore structural integrity wing What does Don Lowe have has probably done wings other modeler often does modelers too squeamish apply saw wing center section airplanes lived closer hed have done job Wait minute what happens dihedral still isnt right must either get saw out again move closer Don Lowe Obviously airplane rolls right right rudder applied wing has too much dihe deal could saw through bottom wing take out dihedral would probably neater saw through top assuming low-wing airplane block wing tips down Epoxy can used fill up crack fiberglass patch wont noticeable put wing fuselage problems have new air plane Well no engine doesnt want come up idle unless its hot low tank position requires get plenty pressure pipe out tank effects between upright inverted maneuvers high pipepressure makes needle valve setting touchy means mixture control necessity Theres also couple other things wont bore contest Mobile AL last weekend middle trying sort things Out airplane flying badly Paul Verger Lafayette LA told Burning too good airplane Nevertheless like good challenge Dutchmen noted determination read pigheadedness way news hasnt bad found couple new uses old friend Continued page 141 cAntique Series new Antique Series features undercambered turbo-style blades distinctive scimitar shape series specially designed 60 120 two four stroke applica tions Made high visibility gold glass-filled nylon modeler looking quality high performance Sizes 12x6 13x6 14x7 16x7 tc22l WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 February 1988 49 AVAILABLE AT AMERICAS DISTRIBUTED BY FINEST HOBBY SHOPS SkAJflH END WDZDD 7ssO too Gab e Road cadeo CA 93422 455-1717 MASTER AIRSCREW A High Performance Propeller Distinctive Shape ELECTRIC Buzz skies search RED BARON DSCs neat lift le stand-way-off scale model famous W\NI fighter take-offs aerobatics touch beauly 6 7 cells Simple quick build precut fuselage sides tail feathers combo includes DScZ HYPERTHRUST 075 motor fused switch harness tamiya connector pro peller adaptor propeller kitl 30 amperes meter determine current draw motor/propeller combination goes 40 span 275 sq area RC AerobaticsNan Putte Continued page 49 making airplane Years ago discovered best ways glue canopy use Wilhold R/C 56 glue Back everyone put canopies airplanes everyone ex tensive techniques keep canopy stuck down R/C 56 came along problem went away R/C 56 glue has several very nice features sticks materials dries clear flex ible cleans up water Ive always glued hinges airplanes Wilbold TiteBond carpenters glue usually use paper punch make holes leaf hinge some like Sig now sold holes through fill hinge slot glue butter half hinge Im inserting glue ease slot wiping off excess time used R/C 56 glue instead carpen ters glue because appears polymerize dries dont know what causes chemical ac tion after dries doesnt seem dissolve water longer Id used carpen ters glue earlier worried about hinges pulling out airplane got wet although ever did R/C 56 glued hinges just fine now dont worry about wet hinges pul ling out second new use R/C 56 solved old problem could never get glue work well fiberglass fuselages used polyester resins polyester fuselages epoxy resins epoxy fuselages nothing provided se cure joint seemed fuselage flexing would cause polyester/epoxy resins pop loose fuselage Cyanoacrylates Jet Hot Stuff Zap etc didnt job well either However R/C 56 hangs like no other ad hesive Ive tried glued servo rails R/C 56 tried pull out short damaging fuselage wouldnt budge Nice stuff RC Scale/Wischers Continued page 51 Rudder hinges have replaced other hinges may need renewed soon mod els dont live long enough require such mainte nance mechanical parts Kraft KPS 15 servos remarkable long lives HP 60 engine will outlive model NASA National Association Scale Aero modelers has revitalized active organization Much credit must given new staff newsletter editors Stan Alex ander associates Claude Baskin William Force newsletter irregular publi cation led diminished interest ganization now find issue mailbox two months about 11 pages dozen photos newsletter really needs contributions editorial text interested modelers attain kind success would lead real growth membership Other NASA members would like know what fellow modelers build ing have solved problems con struction information-gathering documenta tion Without kind mutual exchange ideas newsletter organization has no bind ing influence keep members interested know past experience col Continued page 144 PILOT GLASSES Safety Pmducts Modelers Modelers Sunglasses ANSI Z871 approved safety glasses Fits over prescription glasses Extremely light weight additional comfort Wrap around side protection Anti-fog Anti-ultraviolet radiation Available clear amber gray mirror case included Clear$1095 Gray$1195 Amber$1195 Mirror$1495 ICYAI Mask$1195 1BC Halon Fire Extinguisher- $1495 Dealer Inquiries Invited Shipping handling add $275 VISA MasterCard accepted NO CODs Send cashiers check money order IPlease allow 3 weeks checkatocee Safety Plus PO Box 1173 Clinton MS 39056 601 924-9640 February 1988 141 b IPAVEY675 TOWER IVE YSTEMSWEST CHESTER PA 193W oRPoRATIoN 2154J-&35
Edition: Model Aviation - 1988/02
Page Numbers: 48, 49, 141
DO YOU LIKE trim out new airplane dont Rather have kind airplane about designer reports flew right off drawing board mostly seem have other kind As sat trying puzzle out what to sort out idiosyncrasies newest airplane decided make hassles partly pay themselves writing about column will complete trim new airplane article rather explanation some things try order get Out miseries bit easier first thing noticed about airplane was nose-heavy use enormous el evator deflections loop ready landed Sure enough ran Out Up elevator just before touchdown typical noseheavy airplane Fortunately small amount vertical sink didnt hurt anything find yourself airborne noseheavy airplane try keep speed up bit normal dont drop throttle way idle until airplane foot above ground will reduce amount eleva tor required flare until its close enough ground able drop damage After lots tail weight added what strange feeling add tail weight ready next flight add tail weight careful much add because tail-heavy airplane much exciting fly nose-heavy next thing noted about new airplane severe yaw hard aileron in0 Figure 1 can get differential aileron action Up Down several ways simplest bend aileron horn forward tips trimming column o _______________________ t 0. Figure 2 Another way get differential aileron action use different set holes ail eron servo wheel connect pushrods shown puts applied Oh-oh old adverse yaw problem happens because designs down-going aileron creates drag up-going roll right com manded left aileron goes down right goes up equal aileron deflections left aileron causes drag tends make airplane yaw left An airplane yaws its left rolling right isnt very pretty sight especially noticeable Split S vertical rolls Yuck Fortunately condition easy fix arc several mechanical ways apply aileron dif ferential easiest solution strip ailerons low-wing airplane bend aileron Z link forward shown Figure 1 Almost sim ple strip other types ailerons attach pushrod aileron servo shown Fig ure 2 Obviously first technique causes same amount servo output result differ ent control response direction versus other second technique results less servo Out put direction versus other two techniques can combined airplanes requir ing significant aileron differential Keep increas ing aileron differential until airplane stops yawing left attempt roll 48 Model Aviation Raio Control Sport Aerobatics Ron Van Putte I Sleepy Oaks Rd Ft Walton Beach FL 32548 Theres no doubt owns airplane Ivan Kristensens Summit II hit com petitors Everyone wants see layout gear inside fuselage Ed Keck Webster NY has Pattern flier over 20 years received special award 1987 Masters Tournament having competed date Hes shown FAI plane meet Jacksonville FL right vertical climb course owners phisticated radio systems can dial aileron dif ferential transmitter use two aileron servos thats what did air plane Just read instruction book comes radio Now ready try some point rollsI love Four Point Roll perform rolls right airplane approached first point eased left rudder Whoa What airplane pitched down away canopy rolled right Experienced Pattern pilots will tell bad scene Its cause two nasty things happening two different reasons way Id airplane level flight applied left rudder would have pitched down rolled right too Whats wrong first symptom pitching application rudder very complicated doesnt always result same set inputs involves engine thrust line incidence angles wing horizontal stabilizer vertical arrangement wing stabi lizer Fortunately fix will generally alleviate problem airplane pitches down ap plication rudder lower both ailerons like flaps Conversely pitches up rudder input raise both ailerons Okay now what about rolling motion rudder applied put left rudder airplane rolls right wing doesnt have enough dihedral Ouch tough sort out havent nerve what re quired just yet lived closer Don Lowe Id finished What have to saw through top wing flow some epoxy sit weight center section wing tips blocked up epoxy cures Ill put fiberglass patch across top cen ter section restore structural integrity wing What does Don Lowe have has probably done wings other modeler often does modelers too squeamish apply saw wing center section airplanes lived closer hed have done job Wait minute what happens dihedral still isnt right must either get saw out again move closer Don Lowe Obviously airplane rolls right right rudder applied wing has too much dihe deal could saw through bottom wing take out dihedral would probably neater saw through top assuming low-wing airplane block wing tips down Epoxy can used fill up crack fiberglass patch wont noticeable put wing fuselage problems have new air plane Well no engine doesnt want come up idle unless its hot low tank position requires get plenty pressure pipe out tank effects between upright inverted maneuvers high pipepressure makes needle valve setting touchy means mixture control necessity Theres also couple other things wont bore contest Mobile AL last weekend middle trying sort things Out airplane flying badly Paul Verger Lafayette LA told Burning too good airplane Nevertheless like good challenge Dutchmen noted determination read pigheadedness way news hasnt bad found couple new uses old friend Continued page 141 cAntique Series new Antique Series features undercambered turbo-style blades distinctive scimitar shape series specially designed 60 120 two four stroke applica tions Made high visibility gold glass-filled nylon modeler looking quality high performance Sizes 12x6 13x6 14x7 16x7 tc22l WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 February 1988 49 AVAILABLE AT AMERICAS DISTRIBUTED BY FINEST HOBBY SHOPS SkAJflH END WDZDD 7ssO too Gab e Road cadeo CA 93422 455-1717 MASTER AIRSCREW A High Performance Propeller Distinctive Shape ELECTRIC Buzz skies search RED BARON DSCs neat lift le stand-way-off scale model famous W\NI fighter take-offs aerobatics touch beauly 6 7 cells Simple quick build precut fuselage sides tail feathers combo includes DScZ HYPERTHRUST 075 motor fused switch harness tamiya connector pro peller adaptor propeller kitl 30 amperes meter determine current draw motor/propeller combination goes 40 span 275 sq area RC AerobaticsNan Putte Continued page 49 making airplane Years ago discovered best ways glue canopy use Wilhold R/C 56 glue Back everyone put canopies airplanes everyone ex tensive techniques keep canopy stuck down R/C 56 came along problem went away R/C 56 glue has several very nice features sticks materials dries clear flex ible cleans up water Ive always glued hinges airplanes Wilbold TiteBond carpenters glue usually use paper punch make holes leaf hinge some like Sig now sold holes through fill hinge slot glue butter half hinge Im inserting glue ease slot wiping off excess time used R/C 56 glue instead carpen ters glue because appears polymerize dries dont know what causes chemical ac tion after dries doesnt seem dissolve water longer Id used carpen ters glue earlier worried about hinges pulling out airplane got wet although ever did R/C 56 glued hinges just fine now dont worry about wet hinges pul ling out second new use R/C 56 solved old problem could never get glue work well fiberglass fuselages used polyester resins polyester fuselages epoxy resins epoxy fuselages nothing provided se cure joint seemed fuselage flexing would cause polyester/epoxy resins pop loose fuselage Cyanoacrylates Jet Hot Stuff Zap etc didnt job well either However R/C 56 hangs like no other ad hesive Ive tried glued servo rails R/C 56 tried pull out short damaging fuselage wouldnt budge Nice stuff RC Scale/Wischers Continued page 51 Rudder hinges have replaced other hinges may need renewed soon mod els dont live long enough require such mainte nance mechanical parts Kraft KPS 15 servos remarkable long lives HP 60 engine will outlive model NASA National Association Scale Aero modelers has revitalized active organization Much credit must given new staff newsletter editors Stan Alex ander associates Claude Baskin William Force newsletter irregular publi cation led diminished interest ganization now find issue mailbox two months about 11 pages dozen photos newsletter really needs contributions editorial text interested modelers attain kind success would lead real growth membership Other NASA members would like know what fellow modelers build ing have solved problems con struction information-gathering documenta tion Without kind mutual exchange ideas newsletter organization has no bind ing influence keep members interested know past experience col Continued page 144 PILOT GLASSES Safety Pmducts Modelers Modelers Sunglasses ANSI Z871 approved safety glasses Fits over prescription glasses Extremely light weight additional comfort Wrap around side protection Anti-fog Anti-ultraviolet radiation Available clear amber gray mirror case included Clear$1095 Gray$1195 Amber$1195 Mirror$1495 ICYAI Mask$1195 1BC Halon Fire Extinguisher- $1495 Dealer Inquiries Invited Shipping handling add $275 VISA MasterCard accepted NO CODs Send cashiers check money order IPlease allow 3 weeks checkatocee Safety Plus PO Box 1173 Clinton MS 39056 601 924-9640 February 1988 141 b IPAVEY675 TOWER IVE YSTEMSWEST CHESTER PA 193W oRPoRATIoN 2154J-&35
Edition: Model Aviation - 1988/02
Page Numbers: 48, 49, 141
DO YOU LIKE trim out new airplane dont Rather have kind airplane about designer reports flew right off drawing board mostly seem have other kind As sat trying puzzle out what to sort out idiosyncrasies newest airplane decided make hassles partly pay themselves writing about column will complete trim new airplane article rather explanation some things try order get Out miseries bit easier first thing noticed about airplane was nose-heavy use enormous el evator deflections loop ready landed Sure enough ran Out Up elevator just before touchdown typical noseheavy airplane Fortunately small amount vertical sink didnt hurt anything find yourself airborne noseheavy airplane try keep speed up bit normal dont drop throttle way idle until airplane foot above ground will reduce amount eleva tor required flare until its close enough ground able drop damage After lots tail weight added what strange feeling add tail weight ready next flight add tail weight careful much add because tail-heavy airplane much exciting fly nose-heavy next thing noted about new airplane severe yaw hard aileron in0 Figure 1 can get differential aileron action Up Down several ways simplest bend aileron horn forward tips trimming column o _______________________ t 0. Figure 2 Another way get differential aileron action use different set holes ail eron servo wheel connect pushrods shown puts applied Oh-oh old adverse yaw problem happens because designs down-going aileron creates drag up-going roll right com manded left aileron goes down right goes up equal aileron deflections left aileron causes drag tends make airplane yaw left An airplane yaws its left rolling right isnt very pretty sight especially noticeable Split S vertical rolls Yuck Fortunately condition easy fix arc several mechanical ways apply aileron dif ferential easiest solution strip ailerons low-wing airplane bend aileron Z link forward shown Figure 1 Almost sim ple strip other types ailerons attach pushrod aileron servo shown Fig ure 2 Obviously first technique causes same amount servo output result differ ent control response direction versus other second technique results less servo Out put direction versus other two techniques can combined airplanes requir ing significant aileron differential Keep increas ing aileron differential until airplane stops yawing left attempt roll 48 Model Aviation Raio Control Sport Aerobatics Ron Van Putte I Sleepy Oaks Rd Ft Walton Beach FL 32548 Theres no doubt owns airplane Ivan Kristensens Summit II hit com petitors Everyone wants see layout gear inside fuselage Ed Keck Webster NY has Pattern flier over 20 years received special award 1987 Masters Tournament having competed date Hes shown FAI plane meet Jacksonville FL right vertical climb course owners phisticated radio systems can dial aileron dif ferential transmitter use two aileron servos thats what did air plane Just read instruction book comes radio Now ready try some point rollsI love Four Point Roll perform rolls right airplane approached first point eased left rudder Whoa What airplane pitched down away canopy rolled right Experienced Pattern pilots will tell bad scene Its cause two nasty things happening two different reasons way Id airplane level flight applied left rudder would have pitched down rolled right too Whats wrong first symptom pitching application rudder very complicated doesnt always result same set inputs involves engine thrust line incidence angles wing horizontal stabilizer vertical arrangement wing stabi lizer Fortunately fix will generally alleviate problem airplane pitches down ap plication rudder lower both ailerons like flaps Conversely pitches up rudder input raise both ailerons Okay now what about rolling motion rudder applied put left rudder airplane rolls right wing doesnt have enough dihedral Ouch tough sort out havent nerve what re quired just yet lived closer Don Lowe Id finished What have to saw through top wing flow some epoxy sit weight center section wing tips blocked up epoxy cures Ill put fiberglass patch across top cen ter section restore structural integrity wing What does Don Lowe have has probably done wings other modeler often does modelers too squeamish apply saw wing center section airplanes lived closer hed have done job Wait minute what happens dihedral still isnt right must either get saw out again move closer Don Lowe Obviously airplane rolls right right rudder applied wing has too much dihe deal could saw through bottom wing take out dihedral would probably neater saw through top assuming low-wing airplane block wing tips down Epoxy can used fill up crack fiberglass patch wont noticeable put wing fuselage problems have new air plane Well no engine doesnt want come up idle unless its hot low tank position requires get plenty pressure pipe out tank effects between upright inverted maneuvers high pipepressure makes needle valve setting touchy means mixture control necessity Theres also couple other things wont bore contest Mobile AL last weekend middle trying sort things Out airplane flying badly Paul Verger Lafayette LA told Burning too good airplane Nevertheless like good challenge Dutchmen noted determination read pigheadedness way news hasnt bad found couple new uses old friend Continued page 141 cAntique Series new Antique Series features undercambered turbo-style blades distinctive scimitar shape series specially designed 60 120 two four stroke applica tions Made high visibility gold glass-filled nylon modeler looking quality high performance Sizes 12x6 13x6 14x7 16x7 tc22l WINDSOR PROPELLER CO 384 Tesconi Court Santa Rosa CA 95401 February 1988 49 AVAILABLE AT AMERICAS DISTRIBUTED BY FINEST HOBBY SHOPS SkAJflH END WDZDD 7ssO too Gab e Road cadeo CA 93422 455-1717 MASTER AIRSCREW A High Performance Propeller Distinctive Shape ELECTRIC Buzz skies search RED BARON DSCs neat lift le stand-way-off scale model famous W\NI fighter take-offs aerobatics touch beauly 6 7 cells Simple quick build precut fuselage sides tail feathers combo includes DScZ HYPERTHRUST 075 motor fused switch harness tamiya connector pro peller adaptor propeller kitl 30 amperes meter determine current draw motor/propeller combination goes 40 span 275 sq area RC AerobaticsNan Putte Continued page 49 making airplane Years ago discovered best ways glue canopy use Wilhold R/C 56 glue Back everyone put canopies airplanes everyone ex tensive techniques keep canopy stuck down R/C 56 came along problem went away R/C 56 glue has several very nice features sticks materials dries clear flex ible cleans up water Ive always glued hinges airplanes Wilbold TiteBond carpenters glue usually use paper punch make holes leaf hinge some like Sig now sold holes through fill hinge slot glue butter half hinge Im inserting glue ease slot wiping off excess time used R/C 56 glue instead carpen ters glue because appears polymerize dries dont know what causes chemical ac tion after dries doesnt seem dissolve water longer Id used carpen ters glue earlier worried about hinges pulling out airplane got wet although ever did R/C 56 glued hinges just fine now dont worry about wet hinges pul ling out second new use R/C 56 solved old problem could never get glue work well fiberglass fuselages used polyester resins polyester fuselages epoxy resins epoxy fuselages nothing provided se cure joint seemed fuselage flexing would cause polyester/epoxy resins pop loose fuselage Cyanoacrylates Jet Hot Stuff Zap etc didnt job well either However R/C 56 hangs like no other ad hesive Ive tried glued servo rails R/C 56 tried pull out short damaging fuselage wouldnt budge Nice stuff RC Scale/Wischers Continued page 51 Rudder hinges have replaced other hinges may need renewed soon mod els dont live long enough require such mainte nance mechanical parts Kraft KPS 15 servos remarkable long lives HP 60 engine will outlive model NASA National Association Scale Aero modelers has revitalized active organization Much credit must given new staff newsletter editors Stan Alex ander associates Claude Baskin William Force newsletter irregular publi cation led diminished interest ganization now find issue mailbox two months about 11 pages dozen photos newsletter really needs contributions editorial text interested modelers attain kind success would lead real growth membership Other NASA members would like know what fellow modelers build ing have solved problems con struction information-gathering documenta tion Without kind mutual exchange ideas newsletter organization has no bind ing influence keep members interested know past experience col Continued page 144 PILOT GLASSES Safety Pmducts Modelers Modelers Sunglasses ANSI Z871 approved safety glasses Fits over prescription glasses Extremely light weight additional comfort Wrap around side protection Anti-fog Anti-ultraviolet radiation Available clear amber gray mirror case included Clear$1095 Gray$1195 Amber$1195 Mirror$1495 ICYAI Mask$1195 1BC Halon Fire Extinguisher- $1495 Dealer Inquiries Invited Shipping handling add $275 VISA MasterCard accepted NO CODs Send cashiers check money order IPlease allow 3 weeks checkatocee Safety Plus PO Box 1173 Clinton MS 39056 601 924-9640 February 1988 141 b IPAVEY675 TOWER IVE YSTEMSWEST CHESTER PA 193W oRPoRATIoN 2154J-&35