Tubular leading edge for controllable kite forms one third of area of kite area and remaining two thirds is made of single thickness of fabric or plastics to yield and reduce stress in high wind

摘要

The partially tubular construction replaces the normal construction with a tube forming the leading edge and separate upper and lower fabric or plastics skins reaching all the way to the trailing edge. The new system has a tubular leading edge and a double skin arrangement for the first one third of the chord of the kite wing. The remaining two thirds of the chord consists of a single thickness of fabric, supported by thin tubes running toward the trailing edge from the upper surface of the double skin portion.