| 摘要 |
A semirigid wing sail structure (2) comprises a mast (3) for supporting it which is mounted rotatably on a boat, and a sail (10) which can be lowered and includes a plurality of ribs (9) enclosing the mast and being guided for sliding movement along the mast (3), and a skin (11) wrapped around the ribs (9). This sail (10) can be readily reefed and hauled down by some simple sail-setting moves. |
