| 摘要 |
A biwinged high performance collapsible hang glider having a simplified integrated frame, having a reinforcing cable system, having a variable camber upper swept wing including a sail, with non-rigid leading and trailing edges, and a flexible batten, having a bridge spacing the sail from the frame, having a lower undercambered sail wing including a sail with a tubular leading edge and nonrigid trailing edge, having an optional collapsible Y-tail modification including sail with non-rigid leading edge and hinged tubular-trailing edges, having a low wing-loading effect, a high lift-drag ratio, a high glide-ratio, a low sink-rate and minimal spiral instability, yielding the capability of effective body-english pilot control for short duration training flights or for long duration cross-country flights, and being collapsible so as to be readily transported by a common passenger vehicle.
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