Flex controlled subassembly and watercraft

Abstract

A subassembly for watercraft comprised of a set of nod points connected between the set or subsets by elements with flexural and or torsional properties that can be chosen to customize the flex response of the watercraft and resultant watercraft comprising a subassembly or subassemblies structurally engineered and manufactured to be fitted optionally in, on, and or through, or combinations thereof to a aquatic watercraft. A subassembly may be mounted in various manners to the watercraft and optionally connect to the fins or fin attachment systems of the watercraft or surfboard. A subassembly may be of composites in the form of hollow structures, partial hollow cavity, cored with other materials or tube or tubes and plates structures mounted on in and through a surfboard. The invention relates to methods for making and producing completed watercraft and cores incorporating the subassembly or subassemblies or prepared for incorporating a composite subassembly.

1 . A watercraft comprising:
 a hull of composite construction having an outer shell and an inner core;   a plurality of linkages; and   means for interconnecting the linkages to allow selective and flex movements there between the linkages and interconnecting means mounted in. on and through and combinations thereof the core to allow the weight distribution of the rider to selectively alter the flexural properties of the watercraft.