Two Bits (oz16110)

About this Plan

Two Bits. Free flight sport model. Wingspan 25 in, for Cox PeeWee 020 engine.

Quote: "Two Bits, by Paul Denson.

The Two-Bits design was begun a few years ago after I read the article 'Famous Free Flights' in the 1964 American Modeler Annual. I was looking for an oldtimer to reduce to 1/4A (02 engine) size. Lou Garami's Half Pint (oz197) caught my eye and inspired a twin-tailed version of Two-Bits which I called Quarter Pint (oz2183). Junior American Modeler asked me to design something easier to build. I kept the same wing and designed a new fuselage and tail section. Two-Bits is constructed as simply as possible and retains all of its famous predecessor's flying characteristics.

I would emphasize the importance of studying the plans and reading carefully all of the building instructions before you start. Occasionally it is necessary to describe near the end of the instructions something that affects the building of the entire plane.

Always cover the plans with plastic wrap or waxed paper (for protection from glue) before you build over them. Some day you or a friend might want to build another plane. Use any model airplane glue or cement.

The fuselage is all sheet balsa, mostly 1/16 sheet. Follow Step No.1 on the plans and cut two sides from a piece of 1/16 sheet. Cut the stabilizer from 1/8 sheet balsa. From the remainder of this sheet, cut the fuselage formers. In Step No.2 glue 1/8 sq strips on the top and bottom edges of each fuselage side piece as shown. (Be certain that you make a left and right side, not two the same.) Pin the right side to the plans and glue formers 2, 3, and 4, along with the 1/8 by 1/4 balsa tail separator at the proper stations on the fuselage.

While the glue on the formers is drying in place, cut out three pylon pieces from 1/16 balsa, two with the grain running horizontal and one with the grain running vertical. Cement these together like plywood (center piece vertical), and place under a stack of books or magazines to dry. When the pylon is dry (the next day), give it a light sanding with fine sandpaper and glue it in place between Formers 2 and 3 in accordance with Step No.3 on the plans.

Bend the landing gear from 1/16 wire. Place the top of the landing gear on former 1, outline it with pencil, then drill two parallel lines of 1/16 holes along these lines and sew the landing gear onto former 1 with strong button thread.

Remove the fuselage from the plans and cement former 1 (with the landing gear attached) in place, making certain that the wire does not stick out beyond the ends of the fuselage sides. Cut the firewall (engine mount) from 1/8 plywood. (If there is an R/C modeler in your area, ask him for a small piece of 1/8 plywood, since this is the only place you will need this material.) 1/8 Masonite will work just as well, although plywood is stronger.

From your hobby shop, purchase a set of four blind mounting nuts to fit your engine mounting bolts. Install the blind mounting nuts on the backside of the firewall which then is glued to the ends of the fuselage sides. (Also coat your sewing job with glue.) If you have a two-part fast-drying epoxy glue, it would be best for mounting the fire-wall... "

Direct submission to Outerzone.

Supplementary file notes

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