| 摘要 |
The invention relates to a surface vehicle 1 comprising a keel-mast arrangement 10 where at least one keel 14 is arranged to at least one mast 13 to form the keel-mast arrangement 10 and that the keel-mast arrangement 10 is movabiy arranged to a multihull structure 20 where the keel-mast arrangement 10 is arranged with a rotating joint 15 to the multihull structure 20, where the multi hull structure have at least one opening 25, 25' for the keel- mast arrangement 10 to pass through, so that the multihull structure 20 and the keel-mast arrangement 10 are freely rotatable around an axis formed by a bow-stern axis A. The invention further relates to a method to provide a capsize safe surface vehicle comprising a multihull structure 20 and a keel-mast arrangement 10 where at least one keel 14 is arranged to at least one mast 13 to form the keel-mast arrangement 10 where the keel-mast arrangement 10 is rotatable arranged to the multihull structure 20 so that the multihull structure 20 could freely rotate around the bow-stern axis A to keep the mast 13 substantially above the surface and the keel 14 substantially below the surface when the surface vehicle is in use. |
