Patent ID: 7966959

Claim:
A surface watercraft comprising a hull body, wherein said hull body comprises: an upper portion; a lower portion a forward end; and an aft end; a shock damping cavity within the hull body in said lower portion between said forward end and said aft end, said damping cavity comprising: a non-planar porous plate having a first edge and a second edge; and a deck plate having a first edge and a second edge, wherein said first edge of said deck plate is attached to said first edge of said non-planar porous plate and said second edge of said deck plate is attached to said second edge of said non-planar porous plate, thereby forming a cavity enclosure, wherein the hull body further comprises an undersurface comprising: a non-porous forward portion; a non-porous aft portion; and a porous portion between said non-porous forward portion and said non-porous aft portion, wherein said porous portion comprises said non-planar porous plate, said non-porous forward portion, said non-porous aft portion, and said porous portion meeting to form the undersurface, wherein in areas where the non-porous portions and said porous portions meet, said undersurface is substantially linear so that said porous portion is commensurate with the overall shape of the undersurface.