Aeronautics and astronautics – Missile stabilization or trajectory control – Automatic guidance
Patent
1994-12-30
1996-04-30
Jordan, Charles T.
Aeronautics and astronautics
Missile stabilization or trajectory control
Automatic guidance
60230, 23926519, F02K 990, F02K 984, F42B 1066
Patent
active
055117457
ABSTRACT:
A system for providing pitch, yaw, and roll control during the flight of a rocket-propelled vehicle combines a vectorable nozzle with jet vanes. The vectorable nozzle provides yaw and pitch control, while the jet vanes provide roll control. Anti-rotation pins extend from the vehicle housing into longitudinal slots within the vectorable nozzle to allow vectoring movements and prevent rotation of the nozzle. The jet vanes are rotatably mounted on shafts within the nozzle exit cone to receive and guide combustion products passing through the nozzle. The jet vanes may be jettisoned after an initial high-angle-of-attack maneuver is completed and the vehicle gains speed, after which roll control is provided by aerodynamic fins. The jet vanes may also be formed of material which erodes after the initial maneuver, thereby reducing the loss of thrust caused by the jet vanes.
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R. P. Roger et al., "CFD Analysis for the Lift and Drag on a Fin/Mount Used as a Jet Vane TVC for Booster Control", 33rd Aerospace Sciences Meeting and Exhibit, AIAA 95-0083, pp. 1-6, (Jan. 9-12, 1995).
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Faupell Lawrence C.
Kliger Joseph J.
Wassom Steven R.
Jordan Charles T.
Lyons Ronald L.
Montgomery Christopher K.
Thiokol Corporation
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