Device for varying boat draught and allow oscillation of keel comprises articulating keel well to hull by ball joints, actuators enabling tipping or raising of keel through well

摘要

The short keel well (1) is articulated to the passage of the hull by ball joints (2) and receives the keel (3) carrying the ballast (4). Tipping of the keel is obtained by hydraulic actuators (6). Raising of the keel by hydraulic actuators (10) is obtained by vertical sliding of the keel through the movable well.