Timber - Single channel radio control trainer model. This is a low resolution plan.
Quote from article text: "Tim-ber. A really robust trainer for single channel by Peter Holland. Timber! A call to be heard, sometimes in derision, but in this case what could be termed gay abandon, just prior to a model biting the dust... yes, gay abandon; for the model presented here is tough, but if the worst does happen it is more a case of cement, wait half an hour and go again. The woeful call for a brush and shovel or a box of matches seems a long, long way off in this case. Not, may we hasten to add for the lack of opportunity, for Timber has been slammed into the deck full bore some half dozen times to date, including one wing band failure from about 100 feet. In this case the motor bolts sheared and the nose section was displaced 'more than somewhat'. However, as intended in the stressing of the design, the break was clean and the was soon ready for the air. Needless to say the radio gear was undamaged and working perfectly, thanks to the installation box system.
Construction. Tim-Ber owes its name as much to the construction as to the ability to bounce: for a start the idea of employing a silk covered wing of traditional rib and spar construction seemed an unnecessarily long and tedious task for a small model. After all, this is a beginner's model and whilst we do not suppose all beginners in radio are either lazy builders or are incapable of producing a really warp free structure, one has the assurance that a fully sheeted wing is more likely to remain true, even if it is necessary to repair it. Having calculated the relative weights of a traditional wing of even less than similar strength, compared with the stressed skin version, the latter was chosen for its ability to sustain local damage without failure, improved section, rigidity and speed of construction, Weight for weight there is so little difference that it seemed pointless to employ 'ye olde' method..."
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Article, complete. 3 pages, text and pics.
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