| 摘要 |
Disclosed is a water vehicle comprising a solid hull and a solid outer edge wall (5) above the waterline, and a recess (9) extending on a substantially horizontal plane wherein an elastically deformable safety element (11) is firmly arranged and is folded in a first operational state and is inflated in a second operational state by means of compressed gas from a compressed gas source (21), characterized in that at least one undercut projection (15) is formed in the recess on the outer edge wall and in that the safety element in a negative form with respect to the projection consists of at least one recess (11.1, 11.2), whereby the projection engages in a positive and non-positive fit into the recess.
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