Abstract: An auxiliary appendage attachable to the steerable nozzle of an existing water craft. A first and second rudder blade attach to steerable nozzle. The first rudder blade includes a torsion spring providing a downward torsion force. A detent attached to steerable nozzle prevents rudder blades from hyper-extending in the direction of the downward torsion force. Rudder blades are connected by a deflection bar. Deflection bar is angled towards rudder blades. Rudder blades pivot between a downward position to an upward position based on the forces created thereon from both the torsion spring and the movement of the water over the appendage.

Abstract: An auxiliary appendage attachable to the steerable nozzle of an existing water craft. A first and second rudder blade attach to steerable nozzle. The first rudder blade includes a torsion spring providing a downward torsion force. A detent attached to steerable nozzle prevents rudder blades from hyper-extending in the direction of the downward torsion force. Rudder blades are connected by a deflection bar. Deflection bar is angled towards rudder blades. Rudder blades pivot between a downward position to an upward position based on the forces created thereon from both the torsion spring and the movement of the water over the appendage.

Abstract: The invention relates to an auxiliary appendage(s) to improve off plane steering response and maneuverability of water jet powered crafts. The invention utilizes the pump's water flow and rotates on a horizontal axis, parallel to the water. Utilizing surface tension, drag or mechanical control the device rotates up and down on the vertical plane. The device does not cause additional sheer or stresses on water jet thrust assemblies. The invention easily attaches to water jet powered craft dramatically improving the steering capability during off-plane maneuvering. Its unique design allows adjustable torsion loading, rotates on one or both sides and allows precise tuning for multiple crafts from personal watercraft to large water jet powered crafts. This device operates on either side of the discharge nozzle to increase low speed control until the speed increases to a (craft dependent) preset point and allow the device to tilt out of the water.