Watercraft e.g. motorboat, sail boat, ship, has lift flap that has air outlets and can be adjusted from rest position to driving position in which current direction of water along underwater surface is pushed forward to generate buoyancy
摘要
<p>A lift flap (4) is arranged at the underwater surface (3) of the watercraft. The lift flap can be adjusted from rest position to driving position in which the current direction (w) of water (2) along the underwater surface is pushed forward to generate buoyancy. Air outlets are formed on sections of the lift flap.</p>
