An apparatus for towing a water sports performer including a first leg, a second leg, a header, and a tow-line-attachment structure. Each of the first leg and second leg is adapted for attachment to one of the port side of a centerline of a boat or the starboard side of a centerline of a boat. The header is capable of assuming a plurality of different header lengths, and includes a first header portion, a second header portion, a housing, and a locking mechanism. The housing connects the first header portion and the second header portion. The housing includes a first receiver configured to receive a second end of the first header portion at a plurality of different positions. The locking mechanism is configured to secure the second end of the first header portion to the housing in one of the plurality of different positions to set the header length.

A hybrid ship which supplementally uses a wind-powered propulsive force in addition to a main engine and a propulsion device driven by the main engine, includes: a tower which includes an accommodation area provided at a stern section and a bridge served as a navigating and maneuvering workstation and provided above the accommodation area, wherein a sail, which is retractable to be stored in each side wall of the accommodation area and which is laterally deployable, is disposed in an airspace, which is located lateral to the accommodation area in the tower, below a height position of a floor surface of the bridge and above a deck.

Aspects hereof relate to apparatuses for moving materials and objects, such as furniture, spas, hot tubs, and the like. The apparatuses described herein may include configurable stabilizing elements that are adaptable to a surface or shape of the item being moved in order stabilize and secure the object during transport.

A bar element as a construction element includes strips preferably produced from bamboo and is hollow at least in certain regions. The hollow interior is formed at least in certain sections as a hollow fillet achieved by a plastic and/or resin introduced into the bar elements, using a shaped body movable through the interior. Producing bar elements from interconnected strips ensures that although produced from a natural raw material, the bar elements have a reproducible outer cross section. Using a shaped body movable through the interior to produce the inner cross section also ensures a defined inner cross section of the bar elements, with the result that in turn connections between a plurality of bar elements that are defined by suitable connection elements can be formed. In this way, the bar elements make it possible to produce lattice works, grid constructions, frameworks or other desired structures and/or three-dimensional bodies.

A fiberglass pontoon boat, having raised and integrated fiberglass side rails, a flat floor, and a side entry level with the flat floor. Integrated seats are molded in fiberglass. The hull and deck join together by flexing the hull to compensate for opposing draft angles of the hull and deck at the side entry. The deck has a floor and at least one other interior component, and terminates in a deck trim flange. The hull has at least two hollow pontoons and at least two side rails that extend from an outer edge of the pontoons, and the hull terminates in a hull trim flange. When assembled, the hull trim flange operatively engages beneath the deck trim flange to form a unified pontoon boat having a space between the deck and hull and wherein the side rails are integrated as structural parts of the interior component.

The present invention relates to a vessel having a superstructure that is movable to increase and/or reduce space in one of at least two zones on the deck of the vessel. The invention further relates to an amphibious vehicle having motive pods that move in an athwartship direction and then downwardly when the motive pods are deployed. The invention further provides for a ramp arrangement for a vessel that allows for an increased amount of deck space, and facilitates ingress and/or egress from the vessel by cargo or passengers.

The present invention relates to a vessel having a superstructure that is movable to increase and/or reduce space in one of at least two zones on the deck of the vessel. The invention further relates to an amphibious vehicle having motive pods that move in an athwartship direction and then downwardly when the motive pods are deployed. The invention further provides for a ramp arrangement for a vessel that allows for an increased amount of deck space, and facilitates ingress and/or egress from the vessel by cargo or passengers.

A rotatable mast system for a sailing craft wherein a lower section of the mast is mounted for rotation in upper and lower bearings fixed to the body of the sailing craft spaced along the length of the lower mast section. The upper section of the mast is removable from the lower section for purposes of servicing, repairing or replacing the upper section of the mast. The lower section of the mast remains in the sailing craft for future use and does not have to be removed while the upper mast section is removed for servicing, repair or replacement, etc. However if desired, the lower mast section may be removed by itself or with the upper section. The lower section of the mast may be made from aluminum and it also includes attachments for connecting a boom and the rigging to the lower section of the mast.

Disclosed herein is a marine vessel, which in one example comprises a substantially continuous deck. Also disclosed is an example with a plurality of parallel longitudinally aligned channels extending from the forward deck to the aft deck. The vessel having a vessel cabin resting on and longitudinally movable upon the deck. The vessel cabin in one example having a plurality of rolling wheels attached thereto; wherein the rolling wheels roll upon the deck and allow longitudinal movement of the vessel cabin between the aft region and the forward region. A drive unit (motor) may be provided. The drive unit optionally mounted to the cabin and in one example having a drive wheel mounted to the drive unit and configured to rotate the drive wheel. The drive wheel(s) contacting the deck such that rotation of the drive wheel repositions the cabin between the aft region and the forward region.

A submersible vessel having wing and keel assemblies that are extendable for wind-powered surface operation and retractable to reduce drag for submerged operation or to place the vessel in a more compact configuration. A deployment mechanism including an actuator and linkage pivots the wing and keel assemblies simultaneously between the deployed and retracted configuration. The vessel may have first and second pressure hulls flanking the wing and keel assemblies. A drive mechanism including a motor and a gear train employing pulley-and-cable assemblies rotates either the wing and flap together such that the flap angle relative to the wing is constant, or to change the flap angle relative to the wing with the wing angle of incidence held constant. The invention also provides a retractable wind-powered propulsion apparatus that is mountable to the hull assembly of a submersible or non-submersible vessel.