A small, lightweight sailboat comprising two floats, a horizontal frame to hold the floats, a vertical mast, a mainsail boom, a jib boom, a mainsail, a jibsail and rigging. The sailboat is used to pull a person through the water. The sailboat is so constructed as to allow both sails to be furled easily and quickly. A certain amount of skill is required to keep the sailboat stable which makes it attractive for sport.
A hand-carryable flying sailboat for kite and water sports in which a lightweight rigid frame supports an airfoil-defining fabric stretched over the frame for flying and a sail assembly is carried dorsally by the frame and enables sail propulsion of the craft, whereby the craft can perform in the water or in the air, alternately and continually.
A sail apparatus to be utilized by an individual wearing skis comprising sail means with means for affixing said sail means to said skis and control means for the control of said sail means.
A collapsible catamaran can be easily disassembled into its component aluminum parts for storage and transportation. The collapsible catamaran consists of a pair of two sectional portions, wherein each section of each portion has an upward extending tubular member attached thereon. A rectangular shaped frame has parallel sides and parallel ends, wherein the sides and ends are detachably joined together by union elbow coupling members, wherein the coupling members detachably fit onto the coupling member.
This device for furling a sail of a ship on a boom (1) connected to a mast (2) by means of articulation means (3) and mounted so that it can rotate about itself, comprising means for driving the boom (1) in rotation (7) in order to furl the sail on the latter, is characterized in that the said means for driving in rotation (7) are arranged on the end of the boom (1) away from the articulation means (3). These driving means comprise a drum (8) integrally fastened to the boom (1), around which is arranged a line for driving (10) the said drum, this line being connected, for example, to the steering station of the ship by return means (11, 12).
A sail on a cylindrical mast provides an aerodynamically shaped leading edge automatically oriented into relative wind, and a smooth shape behind the mast automatically adjusting for changes in trim of the sail. Flexible rib pairs opposite the mast are clamped tantentially to full length battens, the battens defining the shape of the ribs and the orientation of the leading edge.
