About this Plan
The Champ. Free flight profile scale model. An all-sheet design.
Quote: "The Champ, by Harry Williamson.
If you haven't got around to that super-duper scale job, why not let off steam with this well performing sport model. For .039's - .049's, it's robust, good looker. Swell subject for first gassie.
How many times have you said to yourself one of these days I'm gonna build me a scale free-flight job, only to find that you never quite got around to it? If you're like the rest of us, its probably happened numerous times. There's always a good reason why it never comes to pass but the root of the difficulty seems to be insufficient time or a reluctance to put forth the effort required to produce a good-looking scale job. Then, too, there is always that nagging tear that the prodigious labors put into the true-scale model may be instantly dissipated in a crack-up.
Well, maybe we have the answer to an embryo scale free flight modeler's dream! The Aeronca Champion model described here provides all the kicks of scale flight, with a big reduction in the labor required and, in addition, it is strong enough to take the punishment normally meted out during flight tests by the less experienced builder.
A conscious effort was made to keep this model as close to scale as possible in outlines, except for the changes required to provide stability and complete simplicity. Any Half-A engine between .039 and .049 displacement will start you in business. The ship ready to fly weighs about 10 oz with a wingspan of 34 in and an area of approximately 170 sq in.
Trace the outline of the fuselage on a piece of stiff cardboard and, using this as a template, trace the outline on 3/8 sheet balsa. Carefully cut around the outline (don't forget the slot 3/32 wide for the stab) and edge-cement the sheets together as indicated on the plans.
Mark off the location of the landing gear on both sides of the fuselage and carefully gouge out the re4cesses to a depth indicated with the point of a razor blade or knife. Trace the outline of the firewall on a piece of 1/8 plywood and cut to shape..."
The Champ, MAN, November 1954.
Direct submission to Outerzone.
Supplementary file notes
Article pages, thanks to RFJ.
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