Disclosed are devices for connection between a canvas and a rail defining a path of direction. The device includes a part mounted to move with respect to the rail on the path; a part; a unit for securing this part with a point defining a direction; and a unit for rotatably mounting the part with respect to the part about an axis such that the part is able to take all positions between a first position and a second position, the first position being defined so that the direction makes, with the axis, a second non-zero angle and the position being defined so that the direction is parallel to the longitudinal axis.

Disclosed are devices for connection between a canvas and a rail defining a path of direction. The device includes a part mounted to move with respect to the rail on the path; a part; a unit for securing this part with a point defining a direction; and a unit for rotatably mounting the part with respect to the part about an axis such that the part is able to take all positions between a first position and a second position, the first position being defined so that the direction makes, with the axis, a second non-zero angle and the position being defined so that the direction is parallel to the longitudinal axis.

A wind-propelled vessel is described herein. The vessel includes at least one hull and at least one set of paired masts. Each paired mast of the at least one set of paired masts has a first mast located to one side of the vessel and a second mast located on the opposite side of the vessel. Also, each mast of the at least one set of paired masts has a spar located at or near the top of the mast. Moreover, each one of the spar located at or near the top of the mast extends inwards towards a center plane of the vessel, and an inward end of the spar is connected by a connector to another inward end of another one of the each one of the spar located at or near the top of the mast. In accordance with the illustrative examples provided herein, the connector imparts a dynamic force upon connected spars that responsively pulls the connected ones of the inward ends of the spars to their nearest position when tops of the masts to which the spars are fixably attached move away from a relative nearest position to a paired one of one set of paired masts.

A physically-impaired-assisting multi-function sail comprises: a stanchion, a hoisting navigator for allowing an arthritic to deploy and retract the sail without the need to bend the fingers, a hoisting teeter totter secured to the navigator, a teeter-totter hook-lock secured to the teeter totter for automatically locking and unlocking the teeter totter to deploy and retract the sail, a cable secured to a camber, a cable canal formed into the teeter totter for hiding and protecting the cable within, a pivoting pulley housing secured to the teeter totter, a pivoting pulley hub swingingly attached to the pivoting pulley housing, sail-buttresses hingedly attached to the pivoting pulley hub, a sail canopy secured to the sail-buttresses, multiple cable pulleys rotatably secured at multiple locations within the pivoting pulley housing and pivoting pulley hub, a central tube attached to the pivoting pulley hub, sail-buttress-supporting arms hingedly attached to the sail-buttresses, and a shuttling hub attached to the sail-buttress-supporting arms.

A physically-impaired-assisting multi-function sail comprises: a stanchion, a hoisting navigator for allowing an arthritic to deploy and retract the sail without the need to bend the fingers, a hoisting teeter totter secured to the navigator, a teeter-totter hook-lock secured to the teeter totter for automatically locking and unlocking the teeter totter to deploy and retract the sail, a cable secured to a camber, a cable canal formed into the teeter totter for hiding and protecting the cable within, a pivoting pulley housing secured to the teeter totter, a pivoting pulley hub swingingly attached to the pivoting pulley housing, sail-buttresses hingedly attached to the pivoting pulley hub, a sail canopy secured to the sail-buttresses, multiple cable pulleys rotatably secured at multiple locations within the pivoting pulley housing and pivoting pulley hub, a central tube attached to the pivoting pulley hub, sail-buttress-supporting arms hingedly attached to the sail-buttresses, and a shuttling hub attached to the sail-buttress-supporting arms.

Reversible camber wings are disclosed herein. A reversible camber wing includes a first body portion that defines a trailing edge of the reversible camber wing and a second body portion that defines a leading edge of the reversible camber wing. The second body portion is configured to be selectively pivoted about a pivot axis relative to the first body portion between a first position and a second position. The reversible camber wing additionally comprises a flexible skin that extends around the first and second body portions and conforms to the body portions when the second body portion is in the first position and the second position. When the second body portion is in the first position, the reversible camber wing has a first camber, and when the second body portion is in the second position, the reversible camber wing has a second camber that is opposite the first camber.

Reversible camber wings are disclosed herein. A reversible camber wing includes a first body portion that defines a trailing edge of the reversible camber wing and a second body portion that defines a leading edge of the reversible camber wing. The second body portion is configured to be selectively pivoted about a pivot axis relative to the first body portion between a first position and a second position. The reversible camber wing additionally comprises a flexible skin that extends around the first and second body portions and conforms to the body portions when the second body portion is in the first position and the second position. When the second body portion is in the first position, the reversible camber wing has a first camber, and when the second body portion is in the second position, the reversible camber wing has a second camber that is opposite the first camber.

A mast fairing for a sailboat includes an upper fairing and an optional lower fairing configured to reduce turbulent airflow over the upwind and downwind sides of a sail. The upper fairing includes a fairing wrap includes a central segment configured to wrap around a mast, a left-side panel, a right-side panel, and a sail track attached to trailing edges of the left- and right-side panels. One or more fairing supports are optionally attached to the sail track between the left- and right-side panels of the fairing wrap. The optional lower fairing includes a central segment, a left-side panel, and a right-side panel configured for installation on a mast and boom below the upper fairing. The upper and lower fairings reduce turbulent airflow over the surfaces of a sail and increase regions of laminar airflow to improve the performance of the sail.

A rigging system (1) for a sailboat comprising: a mast (3) that extends substantially vertical from a hull; a boom (5) that extends substantially horizontal from the mast (3); a yang tube (7) extending between the mast and the boom to resist relative force and/or moment of the boom (5) towards the mast (3), wherein the yang tube (7) is substantially arcuate and a convex side of the actuate yang tube (7) faces an intersection (9) of the boom (5) and the mast (3) and wherein the yang tube (7) is located above the boom (5). A connection (301) for transferring a first force from a spar (307) to a mast (3) of a sailboat, the connection comprising: a connection base (303) having a key portion (305) to be received in a keyway (306), wherein the keyway (306) is part of a sail track (107) of the mast (3); a mount (309) to receive the spar (307), wherein the first force (35) from the spar (307) is transmitted through the mount (309) to the connection base (303); and a restraint (311) to resist a first component force (37) acting on the connection base (303), wherein the first component force (37) is a component of the first force (35) transmitted from the spar (307) that is in a direction parallel to the keyway (306).

A system for autonomous ocean data collection includes at least one sensor capable of collecting sensor data, at least one transmission device, and at least one computing device comprising one or more hardware processors and memory coupled to the one or more hardware processors, the memory storing one or more instructions which, when executed by the one or more hardware processors, cause the at least one computing device to generate data for transmission based on the sensor data collected by the at least one sensor, and cause the at least one transmission device to transmit the data.