An inflatable kayak constructed of drop-stitch material. When inflated, the drop-stitch members form a rigid, planar structure. To form a non-planar contour in one of the surfaces of a drop-stitch member, the opposing surface is folded over onto itself and a strip of glue along the fold adheres the opposing surface along the glue strip, thereby forming a V-fold extending into the interior of the drop-stitch member. When the member is inflated, the V-fold will alter the profile of the opposing surface and cause the first surface to project away along that profile. The V-fold can be augmented by use of a V-tape or contour member within the V-fold. Using a contour member in the V-fold creates profiles that a fold alone cannot produce.

A fish skiff includes an inflatable floor made of high pressure drop stitch material; inflatable sides made of high-pressure drop stitch material formed at port and starboard sides of the inflatable floor, respectively; and a rigid transom formed at a rear portion of the fish skiff. The rigid transom is formed between the inflatable sides configured to have an outboard motor mounted thereon.

An inflatable structure that includes continuous longitudinal and axial curves, constructed to form a hydrodynamically designed performance platform for use as a performance water sports board, rescue board, or rescue sled, such as a stand-up paddle board, paddleboard, surfboard, PWC rescue sled, bodyboard, or other floating or dynamic platform. Alternatively, it may be adapted for use with additional structure to provide an inflatable hull and floor for a watercraft, such as a boat, raft, life-raft, rescue craft, or other floating or dynamic platform. Longitudinal stringers welded to opposing panels defining the interior volume of the inflatable structure are joined by welding, gluing, or lashing, and the shape of the stringers and the welding/gluing/lashing schedule can be employed to give the inflatable structure a highly customized curved shape.

An inflatable structure that includes continuous longitudinal and axial curves, constructed to form a hydrodynamically designed performance platform for use as a performance water sports board, rescue board, or rescue sled, such as a stand-up paddle board, paddleboard, surfboard, PWC rescue sled, bodyboard, or other floating or dynamic platform. Alternatively, it may be adapted for use with additional structure to provide an inflatable hull and floor for a watercraft, such as a boat, raft, life-raft, rescue craft, or other floating or dynamic platform. Longitudinal stringers welded to opposing panels defining the interior volume of the inflatable structure are joined by welding, gluing, or lashing, and the shape of the stringers and the welding/gluing/lashing schedule can be employed to give the inflatable structure a highly customized curved shape.

An inflatable dinghy includes a drop stitch inflatable floor made of high pressure drop stitch material; port and starboard drop stitch inflatable sides made of high-pressure drop stitch material attached at outside edges of the drop stitch inflatable floor, respectively; a rigid bow mold attached to the drop stitch inflatable floor and drop stitch inflatable sides; and a rigid stern transom attached to the drop stitch inflatable floor and drop stitch inflatable sides. The inflatable dinghy includes only three separate air compartments including the drop stitch inflatable floor and the drop stitch inflatable sides.

An inflatable dinghy includes a drop stitch inflatable floor made of high pressure drop stitch material; port and starboard drop stitch inflatable sides made of high-pressure drop stitch material attached at outside edges of the drop stitch inflatable floor, respectively; a rigid bow mold attached to the drop stitch inflatable floor and drop stitch inflatable sides; and a rigid stern transom attached to the drop stitch inflatable floor and drop stitch inflatable sides. The inflatable dinghy includes only three separate air compartments including the drop stitch inflatable floor and the drop stitch inflatable sides.

An inflatable kayak constructed of drop-stitch material. When inflated, the drop-stitch members form a rigid, planar structure. To form a non-planar contour in one of the surfaces of a drop-stitch member, the opposing surface is folded over onto itself and a strip of glue along the fold adheres the opposing surface along the glue strip, thereby forming a V-fold extending into the interior of the drop-stitch member. When the member is inflated, the V-fold will alter the profile of the opposing surface and cause the first surface to project away along that profile. The V-fold can be augmented by use of a V-tape or contour member within the V-fold. Using a contour member in the V-fold creates profiles that a fold alone cannot produce.