Methods and arrangements tailoring aerodynamic forces afforded b

Details Methods and arrangements tailoring aerodynamic forces afforded b Methods and arrangements tailoring aerodynamic forces afforded b

1992-03-26

1994-06-21

Huppert, Michael S.

Aeronautics and astronautics

Spacecraft

Attitude control

244158R, 244 315, 244 55, 244 63, B64G 114, F42B 1000, F42B 1501

Patent

active

053222482

ABSTRACT:
An arrangement for controlling the flight of a launch vehicle and a coupled payload, such a spaceplane, from launch to the separation of the payload from the vehicle. The launch vehicle is provided with controllable gimballed rocket engines and optionally with aerodynamic control surfaces, that are controlled by flight control systems. The payload having controlled flight surfaces has control systems that cooperate with those flight control systems carried by the launch vehicle to jointly control the coupled launch vehicle and coupled payload during coupled flight. The cooperating flight control systems provide open and closed loop control systems that react to winds measured prior to launch and atmospheric disturbances as indicated by on-board sensors during flight. The payload is mounted on the launch vehicle at a cant angle relative to the longitudinal axis of the launch vehicle to optimize its lift to the coupled launch vehicle and payload. Roll steering is also used to minimize the exposure of the vehicle's most critical plane to atmosphere disturbances and/or to maximize available control authority, in addition to pitch and yaw steering.

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Aviation Week and Space Technology "Europeans looking Beyond Ariane 4 to Goal of Independence in Space" pp. 77-89 Jun. 9, 1986.

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