The invention relates to a vessel for operating on a body of water comprising: a non-planing hull having a waterline and a longitudinal direction with a forward portion, an aft portion, and a central portion, the hull being configured to have the aft portion with a smaller water displacement relative to a water displacement at the central portion; and an aft foil affixed to the aft hull portion with one or more connecting members, and below the surface of the water, and spaced from the hull, the aft foil having a span, a chord, and a leading edge and a trailing edge relative to a forward direction, wherein the leading edge of the aft foil is tilted at a downward angle relative to the horizontal, wherein the aft foil has a chord and profile in longitudinal cross section, with a configuration to provide a lifting force, the tilt angle of the chord of the aft foil being measured with respect to the horizontal, and wherein the aft foil is oriented to provide a continuous, upward, forwardly directed component of the lifting force.

The present invention concerns a bulbous bow for a sea-going vessel, said bow comprising a load-carrying inner structure mounted at the stem of the vessel and an outer shell structure defining the hydrodynamic properties of the bulbous bow, wherein said outer shell structure is provided with a sub-structure for replaceably mounting on the inner structure. The invention further concerns a seagoing vessel comprising such bulbous bow as well as a method of producing a bulbous bow and a method of mounting or replacing a bulbous bow.

A water vessel is provided. The water vessel includes a hull, a deck, and a ramp. The hull has a front end, an aft end, a starboard side, a port side, a bottom, a bow at the front end, and a stem at the aft end. The bow is movable between a closed configuration and an open configuration. The deck is in the region of the bow. The ramp is located between the bottom of the hull and the deck in a retracted position. When the bow is in the open configuration, the ramp is movable to an extended position in which the ramp extends from the front end of the hull.

A water vessel is provided. The water vessel includes a hull, a deck, and a ramp. The hull has a front end, an aft end, a starboard side, a port side, a bottom, a bow at the front end, and a stem at the aft end. The bow is movable between a closed configuration and an open configuration. The deck is in the region of the bow. The ramp is located between the bottom of the hull and the deck in a retracted position. When the bow is in the open configuration, the ramp is movable to an extended position in which the ramp extends from the front end of the hull.

The present disclosure relates to a ship, and in a ship including a cargo area for storing cargo, a forecastle area provided fore of the cargo area, and an aft area provided aft of the cargo area, the forecastle area includes a fore deck dividing an interior and an exterior of a hull, and a cabin is provided on an upper part of the fore deck, wherein the cabin has a flat cross-section with a width that decreases forward toward a bow.

Provided is watercraft hull system, including a hull having a fore end, an aft end, and a longitudinal axis extending between the fore end and the aft end; a substantially V-shaped portion extending from the fore end toward the aft end along a portion of the longitudinal axis; and a substantially M-shaped portion extending from the V-shaped portion toward the aft end, wherein the V-shaped portion gradually transitions to the M-shaped portion.

Provided is watercraft hull system, including a hull having a fore end, an aft end, and a longitudinal axis extending between the fore end and the aft end; a substantially V-shaped portion extending from the fore end toward the aft end along a portion of the longitudinal axis; and a substantially M-shaped portion extending from the V-shaped portion toward the aft end, wherein the V-shaped portion gradually transitions to the M-shaped portion.

A vessel (30) comprising a hull (15) having an apparent centre of pitch (23) located at a position between about 10% and 35% of the length of the vessel (10) measured from the aftermost point (17) of the vessel on the design waterline. The hull (15) may be bare, or alternatively may be fitted with a damping system (31) located forwardly to provide damping forces to reduce the vertical motion at the bow and hence the vertical accelerations. In one arrangement, the vessel (10) may comprise a single hull vessel. In another arrangement, the vessel (10) may comprise a multi-hulled vessel.

A vessel (30) comprising a hull (15) having an apparent centre of pitch (23) located at a position between about 10% and 35% of the length of the vessel (10) measured from the aftermost point (17) of the vessel on the design waterline. The hull (15) may be bare, or alternatively may be fitted with a damping system (31) located forwardly to provide damping forces to reduce the vertical motion at the bow and hence the vertical accelerations. In one arrangement, the vessel (10) may comprise a single hull vessel. In another arrangement, the vessel (10) may comprise a multi-hulled vessel.

A ship hull comprises a bottom portion having a wave piercing bow, a top portion having first and second side surfaces extending to a top deck and a substantially horizontal surface extending away from the bottom portion at a position between the bottom portion and the top portion.