A superstructure-integrated backspray mitigation system for yachts including an aft spoiler secured to the vessels hardtop for directing airflow about the hardtop downwardly into the aft cockpit area to interfere with, mitigate and eliminate the natural reverse backspray created by the low-pressure region behind the yacht. The spoiler protrudes from the hardtop and includes at least one air ducting channel directing airflow at select angles into the cockpit area presenting a protective shield preventing the backspray from entering the cockpit. An optional pivotal panel member selectively enables operation of the spoiler.

The invention provides an apparatus that attaches to a hull of a boat to disrupt water flow around the hull such that a wake created behind the boat is larger, differently positioned, and/or differently shaped. In some embodiments, the apparatus is removably attached to the hull by one or more suction cups. The wake shaping apparatus can include a blade and be configured such that an angular orientation of the blade is adjustable. In certain embodiments, the wake shaping apparatus is inflatable.

A personal watercraft includes a watercraft body including: a center elongated protrusion located at a center of the watercraft body in a left-right direction, extending in a front-rear direction, and having an upwardly convex cross-sectional shape; a drainage channel outward of and adjacent to the center elongated protrusion in the left-right direction, lying along the center elongated protrusion in the front-rear direction, extending rearward and outward in the left-right direction, and having a downwardly convex cross-sectional shape; and an outside elongated protrusion outward of and adjacent to the drainage channel in the left-right direction, lying along the drainage channel in the front-rear direction, having an upwardly convex cross-sectional shape, and facing the drainage channel from outside in the left-right direction.

A drag-reducing separator plate for a moonpool, wherein the upper part thereof is a straight wall perpendicular to the sea level, the lower part thereof is connected to a baffle, and a connecting portion is connected between the straight wall and the baffle. The connecting portion may be in the shape of an arc. The shape of the drag-reducing separator plate matches that of the rear wall of the moonpool. During navigation, the drag-reducing separator plate is located in the middle or front of the moonpool, and can cooperate with a drag-reducing notch on the rear wall of the moonpool to greatly reduce the drag induced by intense sloshing of water in the moonpool during navigation of an offshore vessel. When offshore operations are performed under a station keeping condition, the drag-reducing separator plate is moved to the rear wall of the moonpool to avoid hindering the offshore operations.

A method of assembling a watercraft of a family of watercraft includes, when assembling a first watercraft, attaching a front hull panel to a rear hull panel such that the front hull panel extends forwardly of the rear hull panel. The front hull panel and the rear hull panel form a hull of the first watercraft. The method also includes, when assembling the second watercraft: attaching a hull extension panel to the rear hull panel such that the hull extension panel extends forwardly of the rear hull panel; and attaching the front hull panel to the hull extension panel such that the front hull panel extends forwardly of the hull extension panel. The front hull panel, the hull extension panel and the rear hull panel form a hull of the second watercraft. The second watercraft has a second hull length greater than a first hull length of the first watercraft.

The invention provides an apparatus that attaches to a hull of a boat to disrupt water flow around the hull such that a wake created behind the boat is larger, differently positioned, and/or differently shaped. The apparatus includes a base and a blade. The blade is equipped with a mount structure that attaches the base to the blade. The blade can be reversibly mountable to the base such that either face of the blade faces a desired direction. The apparatus provides tool-free adjustment between a first configuration in which the base is mounted to the blade and a second configuration in which the base and the blade are separated. In some embodiments, the apparatus is removably attached to the hull by one or more suction cups. Additionally, the apparatus can be inflatable. The invention further provides a deployable lanyard assembly and a splash deflector for use with the apparatus.

A water diverter for outboard marine motors is presented. In one embodiment, the water diverter is adapted to be secured to a transom bracket which includes a portion adapted to be mounted on a boat transom. The water diverter includes a body and a bracket. The body has a horizontal deflection plate with a triangular shape. Two vertical deflection plates extend upward along the edges of the horizontal deflection plate. The bracket includes a horizontal mounting surface having a triangular shape. Two vertical attachment walls extend downward along the sides of the horizontal mounting surface. The bracket is sized to fit within the body with alignment of attachment openings of the vertical deflection plates and attachment holes of the vertical attachment walls determining a fastener-based selectively adjustable vertical displacement between the horizontal deflection plate and the horizontal mounting surface.

A pontoon boat includes first and second pontoons on the port and starboard sides of the boat and a main deck attached to the top of the pontoons. A front wave deflector extends forwards and upwards from the front of the main deck at an angle. The front wave deflector is held above the water and does not contact the water while the pontoon boat is floating in or moving through calm water. The front wave deflector contacts the tops of waves when the pontoon boat is navigating rough water and pushes the water beneath the pontoon boat deck. This allows the pontoon boat to navigate rough water without loss of momentum and without excessive up and down pitching.

The present disclosure is directed towards a marine vessel comprising a bow section, a stern section, a centreline and a planing hull. The planing hull comprises a vee bottom section extending along the centreline from the stern section to the bow section and a pair of retainer walls extending from the stern section towards the bow section along either side of the vee bottom section. Each retainer wall extends downwardly parallel to, or at an acute angle to, the centreline. The vee bottom section is configured to, in use, direct water outwardly from the centreline towards the retainer walls. The retainer walls are configured to downwardly direct said outwardly directed water for providing lift to the marine vessel.

A boat hull, comprising a plurality of chines extending downwardly from a bow of the hull towards a stern of the hull, each chine in transverse cross section being substantially straight and substantially horizontal and arranged so that a centerline of each chine lies in a plane which is parallel to a central plane of an adjacent chine, wherein collectively the chines in a lower forward portion of the hull are arranged generally V shaped in cross section and wherein an aft portion of a base of the hull is generally flat and each chine terminates at the flat aft portion.