| 摘要 |
The sail comprises a mast (1) surrounded by several parallel frames (4) transversely spaced along the mast. A sail (5) covers the frames and fits their external profile. Each frame can be deformed by a triangulation part (2) connected by a pivot to the mast and to two points (3) located on the frame's opposite branches (9a,9b) in the zone opposite the sail leading edge (15). |
