Whee-38 (oz6304)

 

Whee-38 (oz6304) by Lou Byron from Air Trails 1951 - plan thumbnail

About this Plan

Whee-38. Twin-boom 1/2A control line sport model.

Quote: "High control-line performance from Half-A's? Impossible. That was the answer heard at a recent club meeting. Too small, too heavy for any satisfactory type of performance, came the verdict of the majority opinion of the local experts.

Summed up, the gang decided that the problem of hot performance with half-A's seemed to be the old bugaboo of wing loading. Small models are infinitely more difficult to build with a light wing loading than the larger jobs. This rub applies to both free-flight and control-line models.

Whee-38 beat the high wing loading hex by the use of a simple sheet balsa wing and the pod-and-boom weight-saving configuration of the World War II famous Lockheed P-38 fighter. The result: a zooty-looking little job with performance plus, using any of the .049 and under displacement engines - and all much to the chagrin of the 'no-can-do' boys.

Any of the radial-mounted en-gines such as the Wasp, Cubs, Infants may be used. Consult the listing on the plan. The K&B .035 displacement Torpedo was handiest, so we installed that.

All parts are shown here full size, hence the elimination of the tedious task of enlarging. Simply trace of by the use of carbon paper the outlines on to the wood. Begin with the wing construction which consists of only three individual pieces, top and bottom surfaces, with a spar sandwiched in between to form the airfoil contour. This is the simplest building method.

Lay the bottom sheet on a flat surface and cement the spar winch measures 1/8 x 6 x 12-1/2 inches in position, Now add the top sheet to the spar and line up the leadihg and trailing edges, When dry, cement along the edges and presto - the job is finished.

The booms are cut from extremely hard 1/4 in sheet. If this is unavailable, use a 3/16 sheet of less hard material, but still try to pick the hardest obtainable. Assemble the booms on the wing and align carefully! Add stabilizer, which again should be cut from extremely hard 1/16 sheet or 3/32 in sheet of softer grade wood.

The pod is carved from the light-est softest wood obtainable to save weight. A 1/8 plywood disk forms the firewall and motor mount. Note that the diameter can be varied to fit the mounting requirements of the particular engine you are using..."

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Whee-38 (oz6304) by Lou Byron from Air Trails 1951 - model pic

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