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.

Sail construction comprising foldable sail supports (2), a crossbeam (3), a holder (1.1), a sail (1), a bottom holder (4), ropes (4.3) and a bolt and tackle system. The sail can be a self-inflatable sail (1 SN) designed similarly to paragliders, partially or fully inflatable.

A rigging for a wind-propelled vessel includes: a rotating airfoil-shaped mast; a sail movably coupled to a trailing edge of the airfoil-shaped mast and configured to be hoisted or lowered along the airfoil-shaped mast; a swiveling masthead coupled to a top section of the airfoil-shaped mast; and a plurality of stays supporting the airfoil-shaped mast, each stay having a first end connected to the swiveling masthead and a second end connected to a hull of the vessel.

In an aspect, an elevated lookout apparatus is disclosed. The apparatus may comprise at least a housing mounted in an elevated location. The apparatus may additionally include a plurality of cameras positioned radially within the at least a housing in a manner to create a combined field of view, wherein each camera of the plurality of cameras is configured a generate image data. The apparatus may also include at least a processor communicatively connected to the plurality of cameras. The processor may be configured receive the image data from each camera of the plurality of cameras. The processor may also be configured to combine the image data from each camera of the plurality of cameras into a combined video using an image machine learning model.

In an aspect, an elevated lookout apparatus is disclosed. The apparatus may comprise at least a housing mounted in an elevated location. The apparatus may additionally include a plurality of cameras positioned radially within the at least a housing in a manner to create a combined field of view, wherein each camera of the plurality of cameras is configured a generate image data. The apparatus may also include at least a processor communicatively connected to the plurality of cameras. The processor may be configured receive the image data from each camera of the plurality of cameras. The processor may also be configured to combine the image data from each camera of the plurality of cameras into a combined video using an image machine learning model.

Stabilized rotating sailing rig for boats formed by a mast, a boom perpendicular to the mast, and one or more sails bent to the common boom and to the mast; rig capable of freely rotating with all its elements, around a vertical axis, with the important and novel characteristic that the top of the mast is stabilized by shrouds and/or stays which tie it to the periphery of the deck or decks of the boat without jeopardizing the rotation of the rig around its vertical axis. This top of the mast stabilization also permits the use of prow fixed sails.

Stabilized rotating sailing rig for boats formed by a mast, a boom perpendicular to the mast, and one or more sails bent to the common boom and to the mast; rig capable of freely rotating with all its elements, around a vertical axis, with the important and novel characteristic that the top of the mast is stabilized by shrouds and/or stays which tie it to the periphery of the deck or decks of the boat without jeopardizing the rotation of the rig around its vertical axis. This top of the mast stabilization also permits the use of prow fixed sails.

A sailing vessel is disclosed which comprises a hull, a keel depending from the hull and a mast. A ballast bulb is provided at the lower end of the keel. A first control mechanisms is provided for rotating the ballast bulb about a transverse axis to change the angle of attack of the bulb. A second control mechanism is provided for rotating the bulb about a longitudinal axis of the vessel.

A sailing vessel is disclosed which comprises a hull, a keel depending from the hull and a mast. A ballast bulb is provided at the lower end of the keel. A first control mechanisms is provided for rotating the ballast bulb about a transverse axis to change the angle of attack of the bulb. A second control mechanism is provided for rotating the bulb about a longitudinal axis of the vessel.

A variable trimaran that uses natural power has an outer hull, which is capable of ensuring stability with respect to a center hull in the middle thereof. The variable trimaran can be selectively expanded and contracted in the horizontal and vertical directions thereof. The variable trimaran includes a sail unit, which uses wind power, and a solar power generation unit so as to enable efficient long-term sailing without the use of fossil fuel. To this end, a horizontal and vertical adjustment units are provided for adjusting the position of the outer hull, and the solar power generation unit and the wind power sailing unit are used such that the position of the outer hull can be freely adjusted with respect to the center hull and efficient long-term sailing is enabled without the supply of an oil energy source due to the use of sunlight and wind power as power sources.