THE FORMAT construction plan fairly straightforward glance dozens Stunt plans have perused over years will show wing will take left two-thirds upper half sheet fuselage side elevation will occupy bottom third top view fuse will use area between tail usually right half shown its actual position fuse top view Bulkheads normally dis played proper relative lengthwise location above fuse top view Mis cellaneous items such landing gear gear blocks forth will located wherever space allows Now pick up pencil lets draw important first line agree flap hinge line should straight have just simplified drawing immeasurably can draw line use refer ence keep other lines proper angular relationship other Draw root tip chords leading edge flap root tip chords wing tip suits fancy Easy far huh next important step draw construction details three impor tant root tip airfoils spar location like draw airfoils right wing drawing aft spar location Simply draw centerline draft airfoils using parameters data sheet ie length thickness loca tion high point leading edge radius draw flap connect plotted locations curves will fit plots actual curve shape relatively minor impor tance comparison airfoil characteris tics have plotted Bill Netzeband oracle Control Line aerodynamics once said engineers curve about two percent better curve sole pair size 12 loafers insofar making efficient airfoil concerned ree him spar location crit ical decisions making drawing will result serviceable easilytrimmed airplane very important have pretty fair idea center gravity CG will control leadouts will exit inboard wing tip feel strongly bellcrank pivot should located closely possible fore-andaft CU spar root should same point support bellcrank mount wing tip spar should located interfere leadouts ship finally trimmed 70 Model Aviation have ever try sand away piece wing spar clear leadout can move leadouts just another quarter inch after plane finished youll know what Im talking about rule thumb have derived measurements off number own airplanes have great confidence airplane properly trimmed CU will fall very narrow range centered point 15% 17% aft leading edge mean chord actually mean geometric chord reasonable wing shape two close other can considered colocated Plot CU loca tion drawing mean chord project parallel hinge line di rectly wing centerline point thus located root rib will location both bellcrank pivot wing spars Although true line rake affected number variables such airplane Continued page 166 months column concluding portion discussion designing own Stunt model began May issue Hems part appearance-point lineup recent Nate Denny Harkaia Uranua occupies center photo other models Include Bob McDonalds Cygnus Arlie Preaziers Excitation II Keith Trostles P40 Uranus red black white trim Building lightweight Stunter Thia very revealing silhouette Teds 1982 Nate Walker Cup-winning intimidation should prove interesting presume finish yet applied Bob McDonald shows us HP 40-powered Aquila ciasaic example top Senior has earned stripes Open competition Historically has easy task THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS SLUBRICAllON WITH HIGH FLASH POINTS WETTING AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW eANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL CHILDPROOF LIDS Available FAI 5 10 15 25 & 40% Nitro-Methane Contents Formulated synthetic lubricants Also cNailade castor DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT This competition fuel fast becoming THE CHOICE vMh top protesionals first cash product Contact us price structures ordering information Manufacturers Major Brand Distributors Model Engines Kits Rodos Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATIONAL 3960 West 16 Ave HIalech Florida 33012 305 557-2024 can made example need firewall positioned 30 downthrust relative centerline fuselage will need set pointer 30 draw lines along pointer wire top gauge along top gauge pointer wire outward template can cut along two lines used guide mounting firewall Several other variations theme possible course depending upon imagination specific needs Hope fully small implements wiH help become accurate consequently bet ter builder model aircraft really what aboutmost time anyway CL Aerobatics/Fancher Continued page 70 speed weight line length diameter air density etc nonetheless true total affect will negligible remotely normal Stunt ship plane properly trimmed leadouts will exit wingtip point three degrees aft center gravity have just located bellcrank pivot plus minus less degree point spar should located tip rib Allow small amount fore aft adjustability pointbut Im willing bet youll end up both leadouts within / inch plotted location Now just draw wing tip choice construction details feel appropriate lets get fun stuffthe fuselage fuselage fun because best place let creativity run rampant Aside locating important pieces right places body like Spinners rudders cowls canopies grist creative mill Lest get carried away however start plotting following convenient horizontal refer ence line usually use top main fuse side spinner backplate 2 Wing leading edge 3 CG 4 Flap hinge line 5 Wing flap trailing edge 6 Stab leading edge 7 Elevator hinge line 8 Elevator trailing edge vertical reference line plot fol lowing locations Engine thrust line 2 Wing centerline Another hint Try keep thrust line wing centerline within 50% wing thickness other Since wing will primary source drag having large distance thrust line will create substantial pitch trim problems 3 Stab centerline 4 Wheel/ground contact point located vertically allow adequate ground clearance largest prop plan use horizontally located respect center gravity Now draw wing stab cutouts let yourself go Just remember anything draw youre going have figure way build reasonable weight last major component top fuselage stab/elevator ease drawing save room usually half top view shown Critical measure ments limited width should dictated size engine crankcase Measure let fuselage grow naturally ie crankcase plus two engine mounts plus two doublers plus two fuse sides equals fuse thickness Firewalls formers simply plotted top bottom views located tween wirtg fuse top view respective longitudinal location right half stab elevator drawn part top view now down nitty gritty detailed want completed drawing drawing planned publication will want letter using lettering guide also put some caption material such models name designers name critical dimensions etc Consider using Letraset dry transfer lettering captions gives very professional lookand besides gives something old Letraset sheets drying up drawer under jockey shorts Include explanatory notes design items may easily illustrated plan such wing asymmetry wood types grades manufacturers names commercial items recom mend Last least have nerve original ink design pub lished inked drawing worth much additional $100 pocket hope has proved helpful Perhaps another time can spend some time dis cussing what numbers data sheet should really can design way top better mousetrap especially tailored particular talents After thats what makes Stunt greatest modeling events really way skin cat Fly Stunt Ted Fancher 158 Flying Cloud Isle Fos ter City CA 94409 CL Scale/Boss Continued page 71 Harrys two previous books No Secrets Handbook Miniature En gines new book loaded how-to-do pictures written descrip tions covering topics such scaling up three-views layout building wings fuselages very well-detailed structions anyone wanting make model parts fiberglass book has something beginner well experienced modeler especially good Scale modeler does own design parts fabrication book well worth price $1095 detailed listing items available Harry B Higley & Sons write PO Box 532 Glen166 Model Aviation specially formulated chemically balanced fuel top performance minimum engine wear weather condition
Edition: Model Aviation - 1984/06
Page Numbers: 70, 166
THE FORMAT construction plan fairly straightforward glance dozens Stunt plans have perused over years will show wing will take left two-thirds upper half sheet fuselage side elevation will occupy bottom third top view fuse will use area between tail usually right half shown its actual position fuse top view Bulkheads normally dis played proper relative lengthwise location above fuse top view Mis cellaneous items such landing gear gear blocks forth will located wherever space allows Now pick up pencil lets draw important first line agree flap hinge line should straight have just simplified drawing immeasurably can draw line use refer ence keep other lines proper angular relationship other Draw root tip chords leading edge flap root tip chords wing tip suits fancy Easy far huh next important step draw construction details three impor tant root tip airfoils spar location like draw airfoils right wing drawing aft spar location Simply draw centerline draft airfoils using parameters data sheet ie length thickness loca tion high point leading edge radius draw flap connect plotted locations curves will fit plots actual curve shape relatively minor impor tance comparison airfoil characteris tics have plotted Bill Netzeband oracle Control Line aerodynamics once said engineers curve about two percent better curve sole pair size 12 loafers insofar making efficient airfoil concerned ree him spar location crit ical decisions making drawing will result serviceable easilytrimmed airplane very important have pretty fair idea center gravity CG will control leadouts will exit inboard wing tip feel strongly bellcrank pivot should located closely possible fore-andaft CU spar root should same point support bellcrank mount wing tip spar should located interfere leadouts ship finally trimmed 70 Model Aviation have ever try sand away piece wing spar clear leadout can move leadouts just another quarter inch after plane finished youll know what Im talking about rule thumb have derived measurements off number own airplanes have great confidence airplane properly trimmed CU will fall very narrow range centered point 15% 17% aft leading edge mean chord actually mean geometric chord reasonable wing shape two close other can considered colocated Plot CU loca tion drawing mean chord project parallel hinge line di rectly wing centerline point thus located root rib will location both bellcrank pivot wing spars Although true line rake affected number variables such airplane Continued page 166 months column concluding portion discussion designing own Stunt model began May issue Hems part appearance-point lineup recent Nate Denny Harkaia Uranua occupies center photo other models Include Bob McDonalds Cygnus Arlie Preaziers Excitation II Keith Trostles P40 Uranus red black white trim Building lightweight Stunter Thia very revealing silhouette Teds 1982 Nate Walker Cup-winning intimidation should prove interesting presume finish yet applied Bob McDonald shows us HP 40-powered Aquila ciasaic example top Senior has earned stripes Open competition Historically has easy task THIS FUEL FEATURES ORUST PREVENTION AGENTS ODETERGENTS SLUBRICAllON WITH HIGH FLASH POINTS WETTING AGENTS FOR MORE EFFICIENT AND DEPENDABLE FUEL FLOW eANTI-FOAMING AGENTS TO PREVENT LEAN RUNS KEEPS YOUR ENGINE RUNNING COOL OAN ODORLESS HIGHLY REFINED FUEL CHILDPROOF LIDS Available FAI 5 10 15 25 & 40% Nitro-Methane Contents Formulated synthetic lubricants Also cNailade castor DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT This competition fuel fast becoming THE CHOICE vMh top protesionals first cash product Contact us price structures ordering information Manufacturers Major Brand Distributors Model Engines Kits Rodos Accessories SUPER K Fuels brand KINGS RADIO CONTROL HOBBIES INTERNATIONAL 3960 West 16 Ave HIalech Florida 33012 305 557-2024 can made example need firewall positioned 30 downthrust relative centerline fuselage will need set pointer 30 draw lines along pointer wire top gauge along top gauge pointer wire outward template can cut along two lines used guide mounting firewall Several other variations theme possible course depending upon imagination specific needs Hope fully small implements wiH help become accurate consequently bet ter builder model aircraft really what aboutmost time anyway CL Aerobatics/Fancher Continued page 70 speed weight line length diameter air density etc nonetheless true total affect will negligible remotely normal Stunt ship plane properly trimmed leadouts will exit wingtip point three degrees aft center gravity have just located bellcrank pivot plus minus less degree point spar should located tip rib Allow small amount fore aft adjustability pointbut Im willing bet youll end up both leadouts within / inch plotted location Now just draw wing tip choice construction details feel appropriate lets get fun stuffthe fuselage fuselage fun because best place let creativity run rampant Aside locating important pieces right places body like Spinners rudders cowls canopies grist creative mill Lest get carried away however start plotting following convenient horizontal refer ence line usually use top main fuse side spinner backplate 2 Wing leading edge 3 CG 4 Flap hinge line 5 Wing flap trailing edge 6 Stab leading edge 7 Elevator hinge line 8 Elevator trailing edge vertical reference line plot fol lowing locations Engine thrust line 2 Wing centerline Another hint Try keep thrust line wing centerline within 50% wing thickness other Since wing will primary source drag having large distance thrust line will create substantial pitch trim problems 3 Stab centerline 4 Wheel/ground contact point located vertically allow adequate ground clearance largest prop plan use horizontally located respect center gravity Now draw wing stab cutouts let yourself go Just remember anything draw youre going have figure way build reasonable weight last major component top fuselage stab/elevator ease drawing save room usually half top view shown Critical measure ments limited width should dictated size engine crankcase Measure let fuselage grow naturally ie crankcase plus two engine mounts plus two doublers plus two fuse sides equals fuse thickness Firewalls formers simply plotted top bottom views located tween wirtg fuse top view respective longitudinal location right half stab elevator drawn part top view now down nitty gritty detailed want completed drawing drawing planned publication will want letter using lettering guide also put some caption material such models name designers name critical dimensions etc Consider using Letraset dry transfer lettering captions gives very professional lookand besides gives something old Letraset sheets drying up drawer under jockey shorts Include explanatory notes design items may easily illustrated plan such wing asymmetry wood types grades manufacturers names commercial items recom mend Last least have nerve original ink design pub lished inked drawing worth much additional $100 pocket hope has proved helpful Perhaps another time can spend some time dis cussing what numbers data sheet should really can design way top better mousetrap especially tailored particular talents After thats what makes Stunt greatest modeling events really way skin cat Fly Stunt Ted Fancher 158 Flying Cloud Isle Fos ter City CA 94409 CL Scale/Boss Continued page 71 Harrys two previous books No Secrets Handbook Miniature En gines new book loaded how-to-do pictures written descrip tions covering topics such scaling up three-views layout building wings fuselages very well-detailed structions anyone wanting make model parts fiberglass book has something beginner well experienced modeler especially good Scale modeler does own design parts fabrication book well worth price $1095 detailed listing items available Harry B Higley & Sons write PO Box 532 Glen166 Model Aviation specially formulated chemically balanced fuel top performance minimum engine wear weather condition