Dewoitine D-33. Rubber scale model.
Quote: "Building the Dewoitine D-33. Complete Data From Which You Can Build a Flying Scale Model of a Famous French Plane, with Contest Performance. By Stepehn Faynor.
THE Dewoitine D-33 is a high performance duration plane, which was built by the French in 1930. It is powered with a Hispano Suiza 650 hp engine. Flown by Marcel Doret and Joseph Le Brix, it established seven world's records in 1931.
The model which is described below lives up to its larger prototype in the respect of unusual performance. It has a wing span of 26 inches and looks, as well as acts, like an outdoor commercial model. Flights of over one minute dura-tion can easily be obtained. Before constructing the model, be sure to look the plans over thoroughly and obtain a clear picture of the details as well as the general construction. This will help you to understand the instructions.
Fuselage: We will start our work by assembling the fuselage. A very good way to start constructing the model is to piece the various pages of drawings together on a soft drawing board. Spread waxpaper on top of the drawings and pin these down also. Now you are ready to begin your work.
Place pieces of 1/16 square medium hard balsa over the main longerons on the drawing. These pieces are held in place with pins. After this is done, put in the upper and lower longerons. These should be 1/16 square and cemented carefully in place. Make both sides of the fuselage in this manner and allow them to dry thoroughly before they are removed from the paper.
When the cement is dry, our task is to place these together properly into the form of the fuselage. This is done by first Cementing in formers B, C and D to the top longerons, and H and I to the two lower longerons. Be sure that the formers are perpendicular to the longerons. Next cement in the formers E, F and G in the same manner. They may be held in place with pins. Next the nose former, A, is cemented in place. The four longerons fit into the grooves in the former A. The last former to be put in place is J. This slants forward slightly and acts as the lower base of the windshield.
Now put in place the lower crosspieces at panels D, E, F and G; also put in the short pieces at the extreme rear end of the fuselage. These should be 1/16 square medium hard balsa.
When this is completed you may put in the ridge longerons along the top of the fuselage and fit the pieces together which form the cabin. A stringer also runs from A through H and I to panel D, along the undersurface of the fuselage. The rear end is cemented into the center of the cross-piece at panel D. Now put the cowling of 1/32 sheet balsa over the top of the fuselage at the nose, between panel A and J. A similar piece of 1/32 balsa forms the cabin covering between panel C and D, as shown in the drawing. These pieces should be well sanded. A small piece of balsa is fitted in between the lower longerons at the extreme rear to which the wire holding the tail wheel is cemented. This wire may be 1/32 in diameter. The wheel is cemented to this wire.
Wing: The wing now may be made. First trace out the ribs on some stiff tracing board. Cut them out carefully and retrace their outline on 1/32 balsa. Then with the point of a broken razor blade, cut out the ribs to conform with the pattern. The trailing edge of the wing is made of 1/16 x 1/4 balsa. After this is shaped and pinned to the drawing, the ribs are glued in place. After the cement is dry, glue the leading edge to the ribs. These are shaped from - a piece of balsa 1/8 square. These should be tapered to 1/8 x 3/32 at one end.
The wing tip may now be formed out of a piece of bamboo and cemented in place to the leading and trailing edges. This is made from a piece of bamboo 1/4 in wide, which is wet in water and then bent care-fully over the heat of a candle to the shape shown in the drawing. When this has been done, strip with the point of a knife so that the bamboo is 1/20 square. It may then be cemented in place..."
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This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
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