Blow back rudder for a water craft

An auxiliary rudder assembly for a personal water craft powered by an engine having a pivotal nozzle for producing a water stream for obtaining thrust for propelling and steering of the water craft, said nozzle having an exhaust port, said rudder assembly having reversing capablilities and including a rudder shaft pivotally mounted to the nozzle and movable therewith, a rudder blade attached to one end of said rudder shaft and movable therewith, a plate attached to said rudder shaft and disposed adjacent to said exhaust port when in the deployed position and pivoting said rudder shaft and rudder blade away from said exhaust port and out of said water stream in the non-deployed position such that said rudder blade is out of the water, and a spring attached to said rudder assembly and said water craft for positioning said rudder blade into the water when the velocity of said water stream ceases or decays whereby said rudder blade is deployed in the steering mode, said plate having a covex face substantially contiguous with said exhaust port for reversing the flow of the jet stream to cause said water craft to reverse, a lever available to the operator and a cable attached to said lever and said rudder assembly to move said plate in a spaced relationship to said exhaust port to permit said jet stream to impinge on said concave face and discharge away from said exhaust port said rudder assembly moveable relative to said cable when said reverseing mode is deactivated.