Reverse propulsion and control means for water jet powered boats

In a water jet propelled marine vessel having a water turbine driven by a engine or other power source and having a water jet outlet, a reversing and control water jet propulsion system comprising:

• a water jet exhaust chamber connected to said water jet outlet for receiving a flow of water under pressure;
• a forward thrust nozzle in fluid communication with said water jet exhaust chamber for providing forward thrust to said marine vessel when water under pressure is delivered therefrom;
• a water conduit having a first end and a second end, said first end in fluid communication with said water jet exhaust chamber;
• a reverse gate for movement between a full open position and a closed position such that water under pressure is delivered through said forward thrust nozzle when said gate is in said full open position, and such that water under pressure is delivered to said first end of said water conduit when said reverse gate is in a position other than full open;
• a manifold fluidly connected to said second end of said conduit for receiving a flow of water under pressure, said manifold having at least four outlet ports;
• a plurality of fluid conduits, each of said plurality of fluid conduits having a first end connected one each to said at least four outlet manifold ports, and an exhaust end selectively positioned around the hull of said marine vessel;
• a single cylinder valve cooperating with said at least four manifold ports such that controlled movement of said cylinder valve opens and closes selected ones of said plurality of ports and such that water under pressure is exhausted from said exhaust end of selected ones of said plurality of fluid conduits;
• and
• actuating mechanism to controllably move said sliding cylinder water valve to provide selected movement of said marine vessel.