Patent ID: 7124698

Claim:
In combination with a craft having a hull through which flow channels extend to main propulsion jet nozzles connected to a main propulsion pump, maneuvering control means comprising: a maneuvering control pump; a curved channel pipe positioned within the hull; a first sub-channel pipe section and a second sub-channel pipe section extending in angular relation to each other from the curved channel pipe; and controllable gate means for selectively directing flow of pressurized fluid pressurized by said maneuvering control pump from the curved channel pipe into one of the first or second sub-channel pipe sections to undergo exit outflow of maneuvering jets from the hull in different directions; wherein said controllable gate means includes: a first gate valve means hingedly mounted on the hull at a first exit opening in the hull for selectively blocking outflow of the pressurized fluid from the first sub-channel pipe section through the first exit opening in the hull; and a second gate valve means hingedly mounted on the hull at a second exit opening in the hull for selectively blocking outflow of the pressurized fluid from the second sub-channel pipe section through the second exit opening in the hull.