Patent ID: 7314014

Claim:
A water craft including a chassis portion, at least four water engaging means and interconnection means, each water engaging means being connected to the chassis portion and being moveable in a substantially vertical direction relative to the chassis portion, the interconnection means including a plurality of rams and a plurality of fluid conduits, each ram being disposed between a water engaging means and the chassis portion and each ram being fluidly connected to at least one other ram associated with at least one other water engaging means using at least one fluid conduit; and the interconnection means being arranged to functionally link the at least four water engaging means such that simultaneous movement of all water engaging means is permitted when adjacent water engaging means move in opposite substantially vertical directions, and such that when two adjacent water engaging means are urged during use to move in the same substantially vertical direction relative to the chassis portion, an opposite two adjacent water engaging means are restricted from moving in a substantially opposite vertical direction relative to the chassis portion, and the chassis portion is thereby encouraged to maintain an orientation which is substantially constant relative to the average plane of the water surface; characterized in that the water craft further comprises means for controlling the orientation of the water engaging means relative to the average plane of the water surface during use.