A sailing boat includes at least one mast with at least one first and one second section projecting upwards with respect to the hull and arranged facing each other in the orthogonal direction to the advancement direction for supporting a mainsail in two mutually specular and alternative operating positions, where the sections are connected and spaced out from each other by at least one overturning section of the mainsail placed at the top of them to allow the passage from one specular position to the other. The three sections of mast define for that purpose a first sliding guide for the whole mainsail that extends substantially along the whole extension length of the mast and the mast includes a second sliding guide positioned substantially at the top thereof and placed aft with respect to the overturning section.

Disclosed is a sail comprising a head, a tack, and a luff extending between the head and the tack; a luff region extending along the luff; wherein the luff region has a significantly higher degree of elasticity compared to the average elasticity of a remainder of the sail. Also disclosed is a method of making a sail comprising laying out material to form the sail; arranging material in a luff region of the sail and in the remainder of the sail such that in the direction of the luff, the luff region has a higher degree of elasticity compared to the remainder of the sail; curing or sewing the sail to form a cohesive structure.

Disclosed is a sail comprising a head, a tack, and a luff extending between the head and the tack; a luff region extending along the luff; wherein the luff region has a significantly higher degree of elasticity compared to the average elasticity of a remainder of the sail. Also disclosed is a method of making a sail comprising laying out material to form the sail; arranging material in a luff region of the sail and in the remainder of the sail such that in the direction of the luff, the luff region has a higher degree of elasticity compared to the remainder of the sail; curing or sewing the sail to form a cohesive structure.

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.

A sailing boat includes at least one mast with at least one first and one second section projecting upwards with respect to the hull and arranged facing each other in the orthogonal direction to the advancement direction for supporting a mainsail in two mutually specular and alternative operating positions, where the sections are connected and spaced out from each other by at least one overturning section of the mainsail placed at the top of them to allow the passage from one specular position to the other. The three sections of mast define for that purpose a first sliding guide for the whole mainsail that extends substantially along the whole extension length of the mast and the mast includes a second sliding guide positioned substantially at the top thereof and placed aft with respect to the overturning section.

Disclosed herein are hydrofoil vessels and systems integrated with renewable energy sources. In one aspect, the hydrofoil vessel includes one or more hulls, an omni-directional platform connecting the one or more hulls of the hydrofoil vessel. The omni-directional platform may include at least one of: a sail, a wind turbine, a solar panel, a hydroelectric motor, a hydrofoil controller platform, and a battery component. Also disclosed herein are methods and computer readable medium for controlling an omni direct modular hydrofoil vessel having one or more hulls integrated with renewable-energy sources.

Disclosed herein are hydrofoil vessels and systems integrated with renewable energy sources. In one aspect, the hydrofoil vessel includes one or more hulls, an omni-directional platform connecting the one or more hulls of the hydrofoil vessel. The omni-directional platform may include at least one of: a sail, a wind turbine, a solar panel, a hydroelectric motor, a hydrofoil controller platform, and a battery component. Also disclosed herein are methods and computer readable medium for controlling an omni direct modular hydrofoil vessel having one or more hulls integrated with renewable-energy sources.

An improved rig is provided for sailing craft, in which two sails are provided in the general shape of tapered tubes encircling each of two adjacent masts arrayed in an A-frame configuration. In the course of a tack, the sails may be swung pendulum-like either towards or away from the bow (one in each direction). The two sails therefore effectively alternate between serving the role of a jib (with sail-area mainly forward of a mast), and the role of a mainsail (with sail-area mainly aft of a mast). The same set of sails on the same masts may also advantageously be deployed for use in high winds, running downwind, heaving-to, and running before a storm.

Disclosed is a sail comprising a head, a tack, and a luff extending between the head and the tack; a luff region extending along the luff; wherein the luff region has a significantly higher degree of elasticity compared to the average elasticity of a remainder of the sail. Also disclosed is a method of making a sail comprising laying out material to form the sail; arranging material in a luff region of the sail and in the remainder of the sail such that in the direction of the luff, the luff region has a higher degree of elasticity compared to the remainder of the sail; curing or sewing the sail to form a cohesive structure.