Free Flight Old-Timers Clarence Haught THERE time model airplane enthus iasts progressed through series steps leading 25-cent rubber-power kits started 10-centers RMcM Gas models Gas models essentially just larger versions rubber models construct ed much same way Thats situation today Todays modeler may start radiocontrolled model constructed sheet balsa foam and/or plastic Thus basic skills building stripwood tissue silk cover ing leamed along way remember models began appearing sheet-balsa fuselage sides What giant leap forward seemed times newcomers enthusiasm Old-Timer models dampened lack famili arity basic building skills Hence thought appropriate review some basics hopes attracting some new modelers OldTimer activity todays models utilize built-up wing structures skills relatively wellknown built-up fuselage stymies modelers Before get actual techniques few preliminaries order Glue itself basically quite weak Good glue joints depend first upon good fit pieces joined Wood-to-wood contact essential glue merely bonds fibers together mut touching strong joint requires joints cut accurately possible means cut squarely axis wood proper angle clear through joint ensure all-important wood-to-wood contact larger wood sizes best cut razor saw aid squareor better yet using miter box such sold X-Acto Angle cuts often require alignment eye practice essential joints fit top get looser depth joint increases Cyano glues better well-fitting joints so-called gap filling glues better well-fitting joints like use white yellow carpenters glues good bonding qualities wood typical fuselage joint has end graln diagonal bonded long grain longeron End grains tend absorb glue rapidly leaving insuffi cient glue form bond joints best done pre-gluing end-grain pieces simply applying layer glue end piece glue largely absorbed sucked up end-grain Set piece aside dry until reaches tacky stage whereupon should apply second coat glue join two pieces procedure may seem time-consum ing its worth extra effort because greater strength imparts joint built-up fuselage consists two sides joined together cross pieces form basic structure Both sides must identical resulting structure geometrically true best accomplished building second side directly atop first Begin covering plan transparent kitchen wrap Lay out longerons pin place Dont pin through wood rather place pins next wood Install pins vertically make sure thatthey long enough hold second side place after first completed Add vertical diagonal members being care ful obtain goodjoints Pull another piece kitchen wrap down over pin heads smooth down overthe just-completedfirst side Build second side directly over first glue completely dry remove sides building board touch up rough areas sandpaper Select area fuselage fairly straight constant width initial joining two sides Usually cabin area forward section near nose good place begin As aid keeping fuselage structure square begin add cross pieces going make jig out comigated cardboard temporarily fasten fuselage sides rubberbands pins jig going like capital H long mid-bar vertical legs H must rectangular good fit inside dimensions fuselage end stralght section beginning work would like straight section eight 10 inches long Hold three parts jig together way like make sure reasonably rigid wont fall apart readily Pin and/or rubberband two fuselage sides jig Check alignment sides both vertically lengthwise Align pieces over fuselage top view plan satisfied alignment glue cross pieces cut lengths shown plan between fuselage sides Let work dry thoroughly Pull fuselage sides together tall post Continued page 160 60 Model Aviation new product Mik Mikkeison Box 1373 Hollywood CA 90078 stirrup attaching rubber motors prop shaft keeps rubber crawling up prop hook Unit holds up 14 strands 1/4-in rubber Note disassembles easily High quality Author Ciarence Haught L prepares Korda bulit 4K kit seif-destructed moment later right winding stooge wound motor let go no apparent reason small Buzzard Bombsheii Above belongs Clarence Bull Eugene OR its Fox 25 converted ignition Mark Fechner Salt Lake City V Box 1063 Lorain Ohio 44055 282-8354 PEANUT SCALE Piper Vagabond Outdoor kits each. 3650 LightIndoorkitseach.3695 OUTDOOR PEANUT SuperScale. 3695 SPORT SCALE PC-6 Porter q Taylor Crall Stinson Voyager Rubber CO2 Power PC-S PorterKits each. 3750 fIPORT MODELS n Embryo Model lb l8 Span gned win beginners experts. 3750 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft 3595 True Olde Japanese Tissue 10 3 colors 95 Japanese Tissue 12 6 colors 3395 Microlite ham3325 Silver$395 Microfilm 3375 Glue Solvent Condenser Paper 3 sheets 3315 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thirs 085each 3175 3132 thirs 5/32each 3105 Winder 61 395 Mark 1161 105 Complete Line Brown CO2 Motors Balsa Wood Outdoor & Indoor Sheets & Strips Add 10% Postage mum Postage 3150 COMPLETE CATALOG 3150 close switch also use two-pin connector interface radio beacon can easily change radios have problem part battery nine-volt alkaline transistor radio battery can fly weekend months single battery radio bea cons avallable have advertised NFFS Digest Model Builder over last year Some addresses write further infor mation Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817 Gil Morris 2810 Brackley Rd Columbus OH 43220 Jim Wal ston Retrieval Systems 725 Cooper Lake Rd SE Smyrna GA 30080 Lost models have accepted us being price must pay enjoying Free Flight modeling Well about change think retrieval systems will common Free Flights future DTs today Bill Hartill 7513 Sausalito Ave Canoga Park CA 91307 FF Old-Timers/Haught Continued page 60 may beneficial sand inside mating portions left right tail post pieces good contact joined Glue together well making sure two sides evenly bent whole structure symmetrical viewed above Add remaining cross pieces between jig-area tail post glue dry remove cardboardjigby cutting parts needed get out Pull nose fuselage together required install remaining cross pieces Any tension needed keep nose pieces pulled together can supplied rublerbands clamps Finish up structure adding formers stringers other parts required Some Old-Timer fuselages built using crutch method essentially consists building sturdy frame top view fuselagethe so-called crutch crutch instill pinned building board top bottom case may members added usually consist formers stringers although may simply built-up truss stick structure Alignment important agaln use cardboard jigs fixtures can valuable aid struc ture completely dry removed plan completed midalr Alterations modifications original design features Old-Timers intended used SAM O-T competition discouraged simply allowed example sheet balsa cannot substituted built-up structures although struc tural changes can added improve strength Beef up built-ups approved prac tice An example necessary strengthening use larger wing spars absorb landing shockloads incurred dethermalizing process Another example adding extra fill-sheeting between structural members nose area aid handling model particularly engine running use laminated tips wings tall sections popular old method joining sections cut sheet balsa led weak struc tures warpage covering Laminated tips can quickly built up form cut corrugated cardboard Wax edges form crayon prevent glue adhering form Cut laminations sheet stock place water approxi mately 15 minutes Pull bend first strip around form Secure rubberbands Add glue pull second strip around form adjusting rubberbands keep strips place Continue process until laminations installed Allow assembly dry thoroughly may speed up &ying time baking whole works oven low heat Some modelers prefer use CyA glues laminating wood must dry set sharp bends required prefer wet method Built-up models work pride accomplishment greater nothing quite like sight sunlight shining through open structure model soars quietly overhead Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Rx Rash/Kruse Continued page 61 around trying find everything needed course weekend stum bles fell stack beaded Styrofoam panels intended insulation purposes available 4 x 8-ft sheets various thicknesses ally neat thing about Styrofoam sheet under $5 answer problemif could fmd some way stick stuff together Because wanted put boxes together minimum mess labor opti use Elmers Contact Cement can brushed allowed dry stuck together Its compatible withpractically surfaces including foam can counted form permanent bond immediately upon contact make short story shorter after measuring planes determine suitable dimensions cut needed side panels tops bottoms table saw stuff cuts like butter leaves no ragged edges brushed glue let dry pressed panels together form box Total elapsed time start finish two hours total three boxes added friction-fit lids cutting top panel inside dimension box oneto outside dimension laminating two contact cement form tidy little unit total cost les $12 three boxes still have enough foam board contact cement another box needed negative note whole project upon arriving Nats unpacking planes several people rushed overto look boxes ask made Nobody asked about planes Maybe Im wrong end hobby best way go project cut ends two bottom pieces width length second bottom piece will become bottom lid will fit down inside box table saw works best operation crosscut hand saw would probably work well may leave ragged edge Next cut sides size Remember 160 Model Aviation
Edition: Model Aviation - 1986/09
Page Numbers: 60, 160
Free Flight Old-Timers Clarence Haught THERE time model airplane enthus iasts progressed through series steps leading 25-cent rubber-power kits started 10-centers RMcM Gas models Gas models essentially just larger versions rubber models construct ed much same way Thats situation today Todays modeler may start radiocontrolled model constructed sheet balsa foam and/or plastic Thus basic skills building stripwood tissue silk cover ing leamed along way remember models began appearing sheet-balsa fuselage sides What giant leap forward seemed times newcomers enthusiasm Old-Timer models dampened lack famili arity basic building skills Hence thought appropriate review some basics hopes attracting some new modelers OldTimer activity todays models utilize built-up wing structures skills relatively wellknown built-up fuselage stymies modelers Before get actual techniques few preliminaries order Glue itself basically quite weak Good glue joints depend first upon good fit pieces joined Wood-to-wood contact essential glue merely bonds fibers together mut touching strong joint requires joints cut accurately possible means cut squarely axis wood proper angle clear through joint ensure all-important wood-to-wood contact larger wood sizes best cut razor saw aid squareor better yet using miter box such sold X-Acto Angle cuts often require alignment eye practice essential joints fit top get looser depth joint increases Cyano glues better well-fitting joints so-called gap filling glues better well-fitting joints like use white yellow carpenters glues good bonding qualities wood typical fuselage joint has end graln diagonal bonded long grain longeron End grains tend absorb glue rapidly leaving insuffi cient glue form bond joints best done pre-gluing end-grain pieces simply applying layer glue end piece glue largely absorbed sucked up end-grain Set piece aside dry until reaches tacky stage whereupon should apply second coat glue join two pieces procedure may seem time-consum ing its worth extra effort because greater strength imparts joint built-up fuselage consists two sides joined together cross pieces form basic structure Both sides must identical resulting structure geometrically true best accomplished building second side directly atop first Begin covering plan transparent kitchen wrap Lay out longerons pin place Dont pin through wood rather place pins next wood Install pins vertically make sure thatthey long enough hold second side place after first completed Add vertical diagonal members being care ful obtain goodjoints Pull another piece kitchen wrap down over pin heads smooth down overthe just-completedfirst side Build second side directly over first glue completely dry remove sides building board touch up rough areas sandpaper Select area fuselage fairly straight constant width initial joining two sides Usually cabin area forward section near nose good place begin As aid keeping fuselage structure square begin add cross pieces going make jig out comigated cardboard temporarily fasten fuselage sides rubberbands pins jig going like capital H long mid-bar vertical legs H must rectangular good fit inside dimensions fuselage end stralght section beginning work would like straight section eight 10 inches long Hold three parts jig together way like make sure reasonably rigid wont fall apart readily Pin and/or rubberband two fuselage sides jig Check alignment sides both vertically lengthwise Align pieces over fuselage top view plan satisfied alignment glue cross pieces cut lengths shown plan between fuselage sides Let work dry thoroughly Pull fuselage sides together tall post Continued page 160 60 Model Aviation new product Mik Mikkeison Box 1373 Hollywood CA 90078 stirrup attaching rubber motors prop shaft keeps rubber crawling up prop hook Unit holds up 14 strands 1/4-in rubber Note disassembles easily High quality Author Ciarence Haught L prepares Korda bulit 4K kit seif-destructed moment later right winding stooge wound motor let go no apparent reason small Buzzard Bombsheii Above belongs Clarence Bull Eugene OR its Fox 25 converted ignition Mark Fechner Salt Lake City V Box 1063 Lorain Ohio 44055 282-8354 PEANUT SCALE Piper Vagabond Outdoor kits each. 3650 LightIndoorkitseach.3695 OUTDOOR PEANUT SuperScale. 3695 SPORT SCALE PC-6 Porter q Taylor Crall Stinson Voyager Rubber CO2 Power PC-S PorterKits each. 3750 fIPORT MODELS n Embryo Model lb l8 Span gned win beginners experts. 3750 HARD-TO-FIND ITEMS Early Bird Tissue Antique Aircraft 3595 True Olde Japanese Tissue 10 3 colors 95 Japanese Tissue 12 6 colors 3395 Microlite ham3325 Silver$395 Microfilm 3375 Glue Solvent Condenser Paper 3 sheets 3315 Plan Service over 17 Scale Sport Scale & Peanut Scale Rubber Strip 020 thirs 085each 3175 3132 thirs 5/32each 3105 Winder 61 395 Mark 1161 105 Complete Line Brown CO2 Motors Balsa Wood Outdoor & Indoor Sheets & Strips Add 10% Postage mum Postage 3150 COMPLETE CATALOG 3150 close switch also use two-pin connector interface radio beacon can easily change radios have problem part battery nine-volt alkaline transistor radio battery can fly weekend months single battery radio bea cons avallable have advertised NFFS Digest Model Builder over last year Some addresses write further infor mation Bradley Model Products 1337 Pine Sap Ct Orlando FL 32817 Gil Morris 2810 Brackley Rd Columbus OH 43220 Jim Wal ston Retrieval Systems 725 Cooper Lake Rd SE Smyrna GA 30080 Lost models have accepted us being price must pay enjoying Free Flight modeling Well about change think retrieval systems will common Free Flights future DTs today Bill Hartill 7513 Sausalito Ave Canoga Park CA 91307 FF Old-Timers/Haught Continued page 60 may beneficial sand inside mating portions left right tail post pieces good contact joined Glue together well making sure two sides evenly bent whole structure symmetrical viewed above Add remaining cross pieces between jig-area tail post glue dry remove cardboardjigby cutting parts needed get out Pull nose fuselage together required install remaining cross pieces Any tension needed keep nose pieces pulled together can supplied rublerbands clamps Finish up structure adding formers stringers other parts required Some Old-Timer fuselages built using crutch method essentially consists building sturdy frame top view fuselagethe so-called crutch crutch instill pinned building board top bottom case may members added usually consist formers stringers although may simply built-up truss stick structure Alignment important agaln use cardboard jigs fixtures can valuable aid struc ture completely dry removed plan completed midalr Alterations modifications original design features Old-Timers intended used SAM O-T competition discouraged simply allowed example sheet balsa cannot substituted built-up structures although struc tural changes can added improve strength Beef up built-ups approved prac tice An example necessary strengthening use larger wing spars absorb landing shockloads incurred dethermalizing process Another example adding extra fill-sheeting between structural members nose area aid handling model particularly engine running use laminated tips wings tall sections popular old method joining sections cut sheet balsa led weak struc tures warpage covering Laminated tips can quickly built up form cut corrugated cardboard Wax edges form crayon prevent glue adhering form Cut laminations sheet stock place water approxi mately 15 minutes Pull bend first strip around form Secure rubberbands Add glue pull second strip around form adjusting rubberbands keep strips place Continue process until laminations installed Allow assembly dry thoroughly may speed up &ying time baking whole works oven low heat Some modelers prefer use CyA glues laminating wood must dry set sharp bends required prefer wet method Built-up models work pride accomplishment greater nothing quite like sight sunlight shining through open structure model soars quietly overhead Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Rx Rash/Kruse Continued page 61 around trying find everything needed course weekend stum bles fell stack beaded Styrofoam panels intended insulation purposes available 4 x 8-ft sheets various thicknesses ally neat thing about Styrofoam sheet under $5 answer problemif could fmd some way stick stuff together Because wanted put boxes together minimum mess labor opti use Elmers Contact Cement can brushed allowed dry stuck together Its compatible withpractically surfaces including foam can counted form permanent bond immediately upon contact make short story shorter after measuring planes determine suitable dimensions cut needed side panels tops bottoms table saw stuff cuts like butter leaves no ragged edges brushed glue let dry pressed panels together form box Total elapsed time start finish two hours total three boxes added friction-fit lids cutting top panel inside dimension box oneto outside dimension laminating two contact cement form tidy little unit total cost les $12 three boxes still have enough foam board contact cement another box needed negative note whole project upon arriving Nats unpacking planes several people rushed overto look boxes ask made Nobody asked about planes Maybe Im wrong end hobby best way go project cut ends two bottom pieces width length second bottom piece will become bottom lid will fit down inside box table saw works best operation crosscut hand saw would probably work well may leave ragged edge Next cut sides size Remember 160 Model Aviation