Ship
AssigneeTechnische Universiteit Delft
InventorJan Alexander Keuning
Life of this patent
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Abstract
A ship for use at high speed and/or heavy seas having a single long and slender hull, a sharp bow and the aft end of the hull has a flat or slightly V-shaped bottom with at least one aft rudder, and at least one propeller or water jet for propulsion whereby the foreship has a draught that is equal or more than the draught of the aft end. The bow has a control surface that converts the water flow along the forward moving ship into an adjustable lateral force.
Claims10
A ship for use at high speed and heavy seas having a single long and slender hull, with a foreship having a bow and an aft end that has a flat or slightly V-shaped bottom with at least one aft rudder and propulsion means comprising either at least one propeller or water jets;
- wherein the foreship has a draught that is greater than the draught of the aft end;
- wherein the ship has an automatic steering system to maintain the ship on a preset course when it moves at high speed;
- wherein the bow has a control surface on which the water flow (F) along the bow of the forward moving ship generates an adjustable lateral force (B);
- and
- wherein the automatic steering system is configured such that when the ship is moving forward on the preset course and waves are approaching the aft end from a stern quarter, the steering system activates the control surface to counteract yawing and heeling of the hull caused by the stern quarter waves, thereby maintaining the ship on the preset course.
A ship for use at high speed and heavy seas having a single long and slender hull, with a foreship having a bow and an aft end that has a flat or slightly V-shaped bottom with at least one aft rudder and propulsions means comprising either at least one propeller or water jets whereby the foreship has a draught that is more than the draught at the aft end
- wherein the ship comprises:
- an automatic steering system to maintain the ship on a preset course;
- and,
- a bow control surface on which the water flow (F) along the bow of the forward moving ship generates an adjustable lateral force (B)
- wherein the automatic steering system comprises sensors that determine the ship's movements and a system that is configured for calculating the angle of incoming waves relative to the preset course;
- and,
- wherein the automatic steering system is configured such that when the ship is moving forward on the preset course and waves are approaching the aft end from a stern quarter, the steering system activates the control surface to counteract yawning and heeling of the hull caused by the stern quarter waves, thereby maintaining the ship on the preset course.
A ship for use at high speed and heavy seas having a single long and slender hull, with a foreship having a bow and an aft end that has a flat or slightly V-shaped bottom with at least one aft rudder and propulsions means comprising either at least one propeller or water jets whereby the foreship has a draught that is more than the draught at the aft end of a keel
- wherein the ship comprises
- an automatic steering system to maintain the ship on a preset course;
- and
- a bow control surface on which the water flow (F) along the bow of the forward moving ship can generate an adjustable lateral force;
- wherein the automatic steering system is configured to receive input indicating the angle of incoming waves relative to the preset course;
- and,
- wherein the automatic steering system is configured such that when the ship is moving forward on the preset course and waves are approaching the aft end from a stern quarter, the steering system activates the control surface to counteract yawning and heeling of the hull caused b the stern quarter waves thereby maintaining the ship on the preset course.
Dependencies are inferred from the claim text.