Free Flight: Old-Timers

FREE FLIGHT OLD-TIMERS WITH THIS COLUMN will conclude discussion Korda Wakefield project covered Korda 1939 Wakefield winner expensive grade imported Japanese tissue about $125 per sheet Oldtimer Model Supply Domestic tissue expensive too think good stuff worth difference open structures Domestic might considered sheet surfaces like put tissue Walt Mooney method Thin white glue little water about like milk consistency has good tack making undercamber cinch yet paper can removed repositioned needed unless use domestic tissue will tear have start another piece goes big saving Apply glue wood lay paper wet fingertip burnish paper around/leading edges tips etc Keep wet paper towel handy wipe glue off fingers paper wont stick instead wood used non-tautening nitrate dope Aerodynelong favorite fuselage could have used tissue silkspan Micafilm doubled-covered tissue cross-grained decided use silk covered silk few years very strong Silk can applied wet dry did dry using Sig Lite-Coat right out cannot thinned watershrunk looked great proud myself despair followed coat thinned Lite-Coat dried silk wrinkled slack So got some Sig Supercoat clear couple coats restored tautness Lesson relearned sometimes shrinking friend did use butyrate anyway No solid reason other subjective impression fills silk faster moisture resistant retrospect would have better off have stuck beloved Aerodyne nitrate shrinks little and/or covered silk wet guess never hurts remind ourselves can put butyrate over nitratenice know fuel-proofing glow fueled job way know nitromethane good solvent cyanoacrylate CyA glues wheels shown November 1939 Air Trails plan others derive simple make since some turned streamline balsa wheels Oldtimer Model Supply used appearance very similar original have always looked crazy 300 hinge angle shown plan ignored time decided have faith lust What dumb mistake part redo 150 rake angle brass tube soldered 1/32 brass strip two pair pliers twisted 150 close possible hinge tube leaving bass strip flat gluing binding balsa hub Study drawing text columns 11/94 3/95 understand direction amount angles needed fold worth fuss have theory hinge-angle error maybe somehow miscommunication 150 plus 150 understood 300 November 1939 Air Trails version generally called Kordas Wakefield todays fliers 1938 version February 1938 Air Trails called Burd Korda because popular kit Burd company nothing flies like Burd 1938 version differs 1939 having three-panel wing rather four free-wheeling two-bladed prop bamboo landing gear struts Still great flier 1939 version kitted Megow will finish some selected quotes 1939 construction article attaching rudder cement stern post leaving front edge movable adjustment Both rudder stabilizer should cemented lightly fuselage will come free crash . although shown plans thrust line offset right degree negatively two degrees Move bearing back nose block thrust offset thin strip should cemented beneath wings center section such way leading edge will raised additional 3A2 rudder offset model flies against torque . right wing warped beginning flight prevent spinning under power left stab tip also warped additional incidence Wow couldnt show correct incidence angles thrustline center gravity CG position plans days beyond Oh way try 60 66% CU flew thing right/right right under power right glide very tricky would willing bet 99 percent Korda Wakes now flying going right/left safe consistent some real advantages right/right modern AMA FM rubber event fliers suffer auto-rudder gadgetry get right/right safely spinning under power Korda cautions us against happens Fly right/left unless really know what doing Old-Timer plans have approached assumption correct angles incidence thrustline CG position shown structural changes will needed produce durable reliable model Addresses products mentioned text Oldtimer Model Supply Box 7334 Van Nuys CA 91409 Catalog $2 Aerodyne 1924 East Edinger Santa Ana CA 92705 Catalog $2 * 122 Model Aviation ors Korda Wakefield Folding prop perfect position due correct hinge angle being used see text Clive Wienker L built authors Sorta Korda Bostonian Bill Baker retaliated Wienkers Island Flyer