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A self-deploying rudder assembly for use with a water craft including an exhaust port having a exhaust stream includes a mounting assembly and a pivoting rudder blade assembly. The pivoting rudder blade assembly typically includes a thrust plate attached to one end of a rudder shaft and a rudder bla

A self-deploying rudder assembly for use with a water craft including an exhaust port having a exhaust stream includes a mounting assembly and a pivoting rudder blade assembly. The pivoting rudder blade assembly typically includes a thrust plate attached to one end of a rudder shaft and a rudder blade attached to the other end of the rudder shaft. When the selected thrust level is above the preselected thrust level, the thrust plate is moved out of the exhaust stream and the rudder blade is thereby moved from a deployed, operational position to a stored position.

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1. A self-deploying rudder assembly for use with an exhaust port including an exhaust stream exiting the exhaust port at a selected thrust level, said self-deploying rudder assembly comprising:a mounting assembly for attaching the self-deploying rudder assembly to the exhaust port; a rudder blade as

1. A self-deploying rudder assembly for use with an exhaust port including an exhaust stream exiting the exhaust port at a selected thrust level, said self-deploying rudder assembly comprising:a mounting assembly for attaching the self-deploying rudder assembly to the exhaust port; a rudder blade assembly pivotally attached to said mounting assembly; a thrust plate constructed and arranged to intercept the exhaust stream, said thrust plate including at least one orifice having a variable surface area; a rudder shaft having a first end connected to said rudder blade assembly and a second end connected to said thrust plate assembly; whereby said rudder blade assembly is caused to pivotally move under the exhaust port to a stored position when the thrust level on said thrust plate is above a pre-selected level.