| 摘要 |
PURPOSE:To smooth a wind surface, to smooth the flow of air along the wind surface, and to sharply improve flying performance by a method wherein a sheetform wing smoothing material is stretched astride recessed parts formed in an upper or a lower surface and extended longitudinally of a wing. CONSTITUTION:During gliding, air is taken in each wing chamber 5 through an air intake port, each wing chamber 5 is brought into an inflated state, and a wing is spread in an arcuate shape on the whole. In this case, since a force by which the wing is further spread is exerted on the wing by an air flow, a wing smoothing material 11 is pulled toward both sides by means of an upper or a lower surface 2 or 3 and stretched astride recessed part formed in the upper or lower surface 2 or 3 to smooth the surface of the wing. |
