Streaker - HLG model.
Quote: - "The most important factors, I thought, were to keep the design simple and light, yet still retain a reasonable amount of strength to make the model durable -many models I had seen seemed to break up on the slightest 'arrival'!. Another must was to keep the design as aerodynamically clean as possible (within the other restraints).
The wing section seemed a point worth pondering over for a while... what is needed is a section that has good high-speed characteristics, whilst retaining good 'scratching' qualities. Yet again, an old model of mine gave me the answer - E176 'flat bottomed'. This is a relatively thin section (8.7%) but has a reasonable amount of camber (good for lifting ie minimum sink, so they say). Another more obvious benefit is that, having no undercamber, it's so easy to build!
The wing was decided to be of the 'bolt-on' variety, and since the span was only to be 50in, a one-piece wing seemed a good idea as this dispensed with the need for joiners and so saved weight. The conventional tailplane/elevator arrangement was chosen for its simplicity, dispensing with the need for a joiner pivot and saving weight at the back end..."
Direct submission to Outerzone.
Article pages, thanks to RFJ.
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