Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A generally triangular-shaped, radial-cut sail intended for use with a small sailing craft such as a Laser™ Class sailboat. A mast sleeve or “luff tube” is arranged or formed adjacent the luff area of the sail, extending from the head to the foot, and sized to accommodate a flexible mast formed of two or more mast sections. A luff tube patch is placed on the leading edge of the mast sleeve adjacent a point where the mast sections meet when the sailing rig is assembled.

Abstract: A set of rigid sails that have an aerodynamic profile and that may be secured to a boat.

Abstract: A generally triangular-shaped, radial-cut sail intended for use with a small sailing craft such as a Laser™ Class sailboat. A mast sleeve or “luff tube” is arranged or formed adjacent the luff area of the sail, extending from the head to the foot, and sized to accommodate a flexible mast formed of two or more mast sections. A luff tube patch is placed on the leading edge of the mast sleeve adjacent a point where the mast sections meet when the sailing rig is assembled.

Abstract: The invention relates to a method of producing reinforced, formed fabrics, consisting in producing a continuous fabric alternated with a membrane (34) containing embedded reinforcing elements, which is prepared in overlapping portions on a conveyor belt (29) which passes over a preparation table (25). The membrane (34) and the reinforcing elements are then positioned under a press consisting of an upper air-filled chamber (1), the lower part thereof comprising a flexible element (4), and a lower water-filled chamber (14), the upper part thereof comprising a flexible element (17). According to the invention, a forming bar (10) is adjustably mounted in the upper chamber (1). When the aforementioned forming bar (10) is adjusted to adopt a particular shape, the different flexible elements can deform at the forming bar and the membrane and the reinforcing elements are hot pressed with a portion corresponding to the forming bar having a three dimensional shape, thereby defining the form of the fabric produced.

Abstract: A woven cloth is provided in which war yarns are relatively uncrimped compared to fill yarns. In some embodiments, the cloth includes flat filament warp yarns and textured fill yarns. In some embodiments, the woven cloth is sailcloth.

Abstract: A sailcloth in roll good form permits efficient and cost effective construction of cross cut and vertical cut, laminate sails based on “off-angle,” (asymmetrical) load bearing fibers. The sailcloth also may include a conventional warp and fill thread or fiber layout. Such sailcloth illustratively is significantly less susceptible to load force stretch, creep elongation, and airfoil shape deformation because, among other things, it is not dependent on the load bearing limitations of symmetrical, woven or knitted roll good sailcloth.

Abstract: A three-dimensional sail apparatus that is made up of a plurality of spacedly disposed foils and a sail cloth for attachment to the foils on opposite sides thereof. Each foil has opposed sail cloth supporting sides that together define a foil shape, A support is disposed between the sides for controlling the relative positioning between the sides of the foil, with each rail adapted to deflect under wind force against its related sail cloth so that the foil can assume opposite respective asymmetric foil shapes.

Abstract: A sailcloth in roll good form permits efficient and cost effective construction of cross cut and vertical cut, laminate sails based on “off-angle,” (assymetrical) load bearing fibers. The sailcloth also may include a conventional warp and fill thread or fiber layout. Such sailcloth illustratively is significantly less susceptible to load force stretch, creep elongation, and airfoil shape deformation because, among other things, it is not dependent on the load bearing limitations of symmetrical, woven or knitted roll good sailcloth.

Abstract: A sail having at least three tops and three corresponding edges opposite the tops and comprising a plurality of panels each of which in turn comprises two outer covering layers, between which a plurality of reinforcement elements are positioned which define, in their entirety, a multi-directional main reinforcement structure. The plurality of reinforcement elements are disposed in a pre-determined manner with respect to three generatrix lines, which have in common a determinate reference point, disposed in a substantially central position of the sail and each one passing through, or near, one of the three tops.

Abstract: A sailcloth in roll good form permits efficient and cost effective construction of cross cut and vertical cut, laminate sails based on “off-angle,” (asymmetrical) load bearing fibers. The sailcloth also may include a conventional warp and fill thread or fiber layout. Such sailcloth illustratively is significantly less susceptible to load force stretch, creep elongation, and airfoil shape deformation because, among other things, it is not dependent on the load bearing limitations of symmetrical, woven or knitted roll good sailcloth.

Abstract: A sailcloth in roll good form permits efficient and cost effective construction of cross cut and vertical cut, laminate sails based on “off-angle,” (assymetrical) load bearing fibers. The sailcloth also may include a conventional warp and fill thread or fiber layout. Such sailcloth illustratively is significantly less susceptible to load force stretch, creep elongation, and airfoil shape deformation because, among other things, it is not dependent on the load bearing limitations of symmetrical, woven or knitted roll good sailcloth.

Abstract: A seamed sail made from a full size precursor sail of yarn oriented load path specific type which is thereafter cut and seamed; a method for making the sail and an apparatus for it.

Abstract: Fiber-oriented sails, including a method of manufacture, wherein woven, laminated panels of oriented fibers are of oriented fill yarns, e.g., in a woven cross-cut panel and the fill yarns, from panel to panel define load paths such as from head to clew and head to tack of a sail.

Abstract: A triangular sail is made by laminating three triangular layers of reinforced film together on a mold to provide a one piece molded sail. Each layer is made up of a plurality of triangular pieces which radiate out of one of the three corners of the sail, such that the pieces in each layer cross in the body of the sail.

Abstract: A sail body (3), which can be finished along its edges and corners to create a finished sail (2), includes a number of sail sections(46) joined along their edges (47). Each sail section includes a reinforced material (20) laminated between first and second films (32,42). The reinforced material includes sectors of reinforced material (30,31), each sector having a set of generally parallel reinforcement elements (24), such as fibers. The sectors of reinforced material are preferably elongate sectors in which at least the majority of the sectors have lengths (34) at least five times as long their widths (36). The sectors are arranged in an overlapping pattern and so that the set of reinforcement elements are generally aligned with the expected load lines (28)for that section of the sail body. Sections can be made of different shapes but are typically triangular or quadrilateral. The reinforce material is typically a mesh or scrim containing sets of parallel, transversely oriented fibers (24,26).

Abstract: A sailcloth arrangement for a sail of a water-going vessel has a sailcloth base and flexible solar cells attached to the sailcloth base. The flexible solar cells have a flexibility matching the flexibility of the sailcloth, and the flexible solar cells are configured to be connected to at least one energy storage device.

Abstract: A sailboat symmetrical in the longitudinal direction, but asymmetrical in a cross-sectional plane perpendicular to the longitudinal axis. The sailboat includes a main hull, a mast, a yardarm pivotally attached to a head of the mast, and a sail attached to the yardarm. Also, there is a sponson, a keel section and an outrigger hull. A system for automatically joining the sail sections, as the sail is lowered from the yardarm and a system for automatically separating the sail sections, as the sail is raised onto the yardarm. A system for rotatably pivotally attaching the mast to the main hull. Rudders mounted in the keel and tillers having resilient control elements.

Abstract: A sail for a wind powered vehicle such as a surfboard, sailing boat or the like is provided wherein a sail is connected along its front edge to a mast and wherein the said sail at its clew or at its lower edge is connected to a boom. The boom is connected in a hinged manner to the mast. At the free rear edge of the sail, at least one sail part is provided which is adjustable in the sail plane so that the overall area of the sail can be decreased or increased.