Importance

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Abstract

A system for controlling movements of a marine surface vessel includes a hull, a bow and a stern. A control unit being controls movements of one or more fins, which control movements of the vessel, in dependence on signals from a position input device, and on signals from a position detecting device. The fin(s) is connected to a respective actuator via a rotation shaft adapted to protrude from the vessel hull, wherein the rotation shaft defines a rotational axis of the fin. Each fin comprises a fin base adapted to be at a first distance from the hull, and a fin tip adapted to be at a second distance from the hull, which second distance is larger than the first distance, wherein a leading edge of the fin, and a trailing edge of the fin extend on opposite sides of the fin, from the fin base to the fin tip.

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First Claim