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 sail body (3) includes first and second skin layers (40, 42), each skin layer having an outer film (22) at an outer side (34) and reinforcement elements (28, 30) at an inner side (36). The skin layers are laminated with the inner sides abutting to form the sail body. The skin layers are each made up of skin components (38) joined to other skin components of the same skin layer another along their aligned edges (43). The joined edges (44) of the first skin layer are offset from the joined edges of the second skin layer to strengthen the sail body. The sail body is preferably a three-dimensional molded sail body. The fibers or other reinforcement elements are preferable generally aligned with the expected load lines (32) of the sail body.