A boat in which at least a portion of at least one of the port side and the starboard side of the hull is moveable between a first position and a second position. In the first position the moveable portion forms a generally upright portion of the port or starboard side of the hull, and, in the second position, the moveable portion forms a generally horizontal deck surface. A walkway connects a seating area within the boat to an area aft of the seating area, and at least a portion of the walkway is adjacent to the moveable portion of the port or starboard side. A first seat is positioned adjacent to at least a portion of the walkway and a removable seat is configured to be positioned over the walkway and adjacent to the first seat.

An apparatus, vessel and method for forming a tween deck within the cargo hold of the vessel. The apparatus comprises at least one fixed tween deck permanently secured to an interior of the interior of the vessel, an opening extending through the at least one fixed tween deck and at least one portable tween deck sized to be received within the opening so as to form a completed tween deck with the at least one fixed tween deck.

A combination recreation vehicle and houseboat having an upper enclosure assembly and a lower floating chassis assembly with a floor system portion, wherein the upper and lower assemblies are movable between a retracted condition and an extended condition independently of each other.

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.

A boat includes: a hull; a float that supports the hull; a suspension that is disposed between the hull and the float and absorbs vibration transmitted from the float to the hull; a sensor that detects an interval between the hull and the float in a vertical direction; a control unit that generates a control signal in accordance with the interval; a battery that is charged or discharged in accordance with the control signal; and a motor that generates electric power by utilizing relative movement between the hull and the float in the vertical direction, charges the battery with the generated electric power in accordance with the control signal, and drives the suspension using the electric power discharged from the battery in accordance with the control signal.

An expansion deck system for vessels includes a frame assembly for positioning between a stationary floor of a vessel and a plurality of pontoons of the vessel. The frame assembly including a first side with a first elongated opening, and a second side with a second elongated opening. One or more sliding deck members are telescopically connected to the frame assembly by one or more sliding rails and transition between a retracted position and an extended position. In the retracted position the one or more sliding deck members are positioned between the floor and pontoons of the vessel, and in the extended position the one or more sliding deck members are positioned alongside the frame assembly.

The invention relates to an operations vessel for the maintenance, installation and/or disassembly of offshore structures, comprising: a hull equipped with ballast means connected to a control system; at least one working platform supported on the hull by means of one or more support elements; and at least one system for coupling to an offshore structure, wherein said coupling system can adopt, at least, a state in which it is coupled to said offshore structure and a state in which it is not coupled to said offshore structure. Advantageously, the control system and the coupling system are configured in a cooperating manner, in order to adopt at least two working positions of the vessel, wherein the hull adopts an above-water state with the coupling system decoupled, and at least a second working position wherein the hull adopts a submerged state in which the coupling system is coupled to the offshore structure.

A slide system includes a component assembly, a track system, a floor panel, and a below-deck cavity. The track system is coupled at least indirectly to the component assembly for guiding movement of the component assembly along a path. The floor panel includes an upper surface. The below-deck cavity is disposed below the floor panel. The component assembly is located substantially above the floor panel. The track system is located within the below deck cavity and below the upper surface.

A slide system includes a component assembly, a track system, a floor panel, and a below-deck cavity. The track system is coupled at least indirectly to the component assembly for guiding movement of the component assembly along a path. The floor panel includes an upper surface. The below-deck cavity is disposed below the floor panel. The component assembly is located substantially above the floor panel. The track system is located within the below deck cavity and below the upper surface.

An apparatus, vessel and method for forming a tween deck within the cargo hold of the vessel that comprises at least one fixed tween deck permanently secured to the interior of the vessel, an opening extending through the at least one fixed tween deck and at least one portable tween deck sized to be received within the opening so as to form a completed tween deck with the at least one fixed tween deck.