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Building the Navy Type SBU-1

by

PAUL W. LINDBERG

Model Editor and Designer for POPULAR AVIATION

Here is the model of the SBU-1 a realistic model that is a fine flyer. check it up with the front cover for accuracy and appearance.

This is the Navy SBU-1 model with the frame-work completed before covering. This will assist in understanding the accompanying drawings.

WE KNOW you will agree with us in building this Navy shipboard fighter, developed by our laboratory, that it is a very good lesson in the construction of Navy ships. The Vought SBU-1 is outstanding in appearance and an excellent flyer as well. A great amount of detail has been worked into the model, such as movable controls, shock absorbing landing gear and many other interesting features.

COLOR SCHEME

Fuselage - Gray and Silver.
Tail assembly - Lemon yellow.
Top wing, topside - International yellow.
Top wing, bottom side - Silver.
Bottom wing - Silver.
For other coloring, refer to plan.

CONSTRUCTION OF FUSELAGE

It is necessary to place a sheet of ordinary wax paper over the plan to prevent cement from sticking to the plan. In building the fuselage, construct one side at a time. The longerons, vertical and diagonal braces, etc., are held in place until securely cemented, by inserting straight pins on either side of strips.

After the two fuselage sides are completed, they are pinned to top view of the plan, in such a manner, that the top longerons face down and the sides are at right angles with the table. The cross-members are now cemented in place, forming a rectangular fuselage.

Cut formers from 1/32-inch sheet balsa and cement in their respective positions. See plan.

Balsa nose plate is built up from 1/8 inch sheet balsa.

CONSTRUCTION OF MOTOR

Cylinders are carved and sanded from balsa blocks. Fourteen blocks required. To represent fins, wind heavy thread around finished block. Make crankcase as shown on plan.

Rocker arm housings, push rolls and other small details of motor are made of balsa.

CONSTRUCTION OF WINGS

Cut all ribs front 1/16-inch balsa. Pin the spar in position on the plan. Now cement ribs in their proper locations. The leading and trailing edges are cut and sanded to shape and cemented to the ribs. The panels carry movable ailerons which are a great help controlling the flights. Make wing tips from 1/16-inch thick balsa. We highly approve of this type of wing tip, because it is much easier to construct and neater in appearance.

CONSTRUCTION OF ELEVATOR AND RUDDER

These are built from 1/16-inch square and flat balsa and all constructed on the plan. The construction is very simple, therefore, no difficulty should be encountered.

CONSTRICTION OF LANDING GEAR

After the struts have been carved and sanded, cement them to the balsa disk which cover the inner sides of wheels. The tops of struts carry bushings (cement securely) which receive wire shafts that are fastened to front nose plate and wing fillet. The shock absorbing wire between struts is fitted into curved piece of balsa under front part of fuselage. See plan.

COVERING THE MODEL

Apply tissue to the various frame-work members, using a light grade model airplane dope to fasten it to the outer edges. Stretch tissue as tightly as possible to remove all wrinkles. When edges have dried, apply coat of water to tissue. When all water has dried completely, tissue will become taut. May we suggest that you pin wings, elevator and such to flat surface. This prevents warping.

ASSEMBLY

After all parts have been covered, wing panels can be cemented into position. Take great care in fitting all wing struts. Small pins can be inserted into either end to simplify installation.

The cockpit covering is made from wire and celluloid. Shape wire to correct form and cover carefully with celluloid. All other details and markings can be drawn with pen and ink.

END

Scanned From March, 1936
Popular Aviation


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