Scram (oz5318)

About this Plan

Scram. Rubber model. Lightweight contest model.

Quote: "THIS model is the latest of a long line of highly successful lightweights. This type of model requires skill and patience in building to produce the best results, in fact, the lighter the model the greater the need for accuracy. The application of the covering in particular needs care. Start with an unwarped air frame, apply the tissue evenly, and do not distort the wings and tail, etc. Pin down all flying surfaces after water spraying and doping. Go easy with the dope and water, and after doping, leave everything pinned down far at least 24 hrs.

Construction. Select four lengths or medium hard white 3/32 in sq balsa, of even grain, weight, and strength, and pin 2 lengths down on the side elevation on the plan (waxing this first). Then cut 1/16 in sq spacers, from medium stock, and cement them squarely into position, allow an hour for this to dry and then build another side on top. When quite set, sand the outermost side with fine glasspaper on a block of cork, lift from plan and sand the opposite side.

Now separate with a knife and fit spacers at the wins LE. and TE positions, and also at the nose and the rubber anchorage points. When these are firmly glued, fit in the remaining spacers and sand the top and bottom. Fill in with 1/16 in sheet at nose bay, tail, etc., and add wire u/c leg..."

Update 10/02/2017: added article (found online), thanks to TonyC.

Supplementary file notes

Article.

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