One embodiment of a mast-head standing rigging connection device, allowing for sail module rotation about a mast axis, is disclosed. The embodiment allows for connection of shrouds and conventional single mast forestay and backstay rigging systems. Additional embodiments, utilizing modifications of the first embodiment, for multi-mast and triangular fore-aft sail mast roller reef-furl systems, are described.

One embodiment of a mast-head standing rigging connection device, allowing for sail module rotation about a mast axis, is disclosed. The embodiment allows for connection of shrouds and conventional single mast forestay and backstay rigging systems. Additional embodiments, utilizing modifications of the first embodiment, for multi-mast and triangular fore-aft sail mast roller reef-furl systems, are described.

The present disclosure relates to a vessel that comprises at least one super structure configured to at least in part translate relative to said hull between a first position and at least one other position. The at least one superstructure in said first condition at least in part defines a first zone suitable for accommodating at least one person and/or vehicle, and the at least one superstructure in said second condition at least in part defines a second zone suitable for accommodating at least one person and/or vehicle. Preferably the at least one superstructure at least in part separates the first and second zones. Preferably the vessel's centre of mass is aft of mid-ship in the first condition and forward of mid-ship in the second position.

A keel canting mechanism for a sailing vessel having a hull, a keel and a mast is disclosed. The mechanism comprises a worm gear co-axial with the longitudinal axis of the vessel about which the keel rotates during a canting movement. There is a double enveloping worm in mesh with the worm gear and means for driving the worm. The worm gear is fast with the keel and, when rotated by the worm, displaces the keel through a canting movement. The gear has a plurality of holes in it into which pins can be inserted to lock the gear, and hence the keel, in the position to which it has been moved by the worm.

A bunkering marine vessel has an elongated, multi-deck accommodation structure extending along a portion of the length of one hull side and spaced apart from a centerline extending from bow to stern. Positioned within the vessel hull is at least one LNG pressure vessel filling at least 50% of the hull volume and extending from adjacent a lowermost deck to adjacent the main deck. At least one marine gasoil tank is positioned along an opposing hull side to counter the weight of the accommodation structure. The bow and stern ends of the vessel are substantially the same in shape, and each end includes a marine propulsion system.

Technologies are described herein for sailing wing for a vehicle such as a sailboat. As described herein, a sailing wing includes a main sail and a control surface. The control surface is rotatable around a hinge. When deflected, the control surface using force imparted on the control surface by the wind causes the main sail to rotate about a pivot axis, creating thrust.

Technologies are described herein for sailing wing for a vehicle such as a sailboat. As described herein, a sailing wing includes a main sail and a control surface. The control surface is rotatable around a hinge. When deflected, the control surface using force imparted on the control surface by the wind causes the main sail to rotate about a pivot axis, creating thrust.

Disclosed, as a device for correcting the horizontality of the small ship according to the present invention, is a device for controlling the horizontality of a small ship by using a variable mast, the device comprising: a tilt sensing unit for sensing the tilt of the small ship; a position adjustment unit formed such that at least a portion thereof can move in the horizontal direction on the deck of the small ship, and having a separate mast loaded on an upper part thereof to support the mast such that the mast is located at a predetermined height or higher; and a horizontality control unit for correcting the center of gravity of the small ship by adjusting a position of the mast through the position adjustment unit in correspondence to the tilt sensed by the tilt sensing unit.

Disclosed, as a device for correcting the horizontality of the small ship according to the present invention, is a device for controlling the horizontality of a small ship by using a variable mast, the device comprising: a tilt sensing unit for sensing the tilt of the small ship; a position adjustment unit formed such that at least a portion thereof can move in the horizontal direction on the deck of the small ship, and having a separate mast loaded on an upper part thereof to support the mast such that the mast is located at a predetermined height or higher; and a horizontality control unit for correcting the center of gravity of the small ship by adjusting a position of the mast through the position adjustment unit in correspondence to the tilt sensed by the tilt sensing unit.

Embodiments of the present invention are directed to a passive, automatic wing-control mechanism for sailing vessels. A cam is attached to one end of a rotatable mast as part of a rotatable wing, and a tensioner is configured to exert a constant force perpendicularly against the cam. When a wing is in a no-go sailing angle with respect to an apparent wind, the cam does not exert a torque on the mast. When the wing is outside the no-go sailing angle, the cam exerts a counter-torque to a torque caused by the apparent wind acting on the rotatable wing, causing the wing to remain at a predetermined angle with respect to the apparent wind.