Attitude control system for spacecraft utilizing the thruster pl

Details Attitude control system for spacecraft utilizing the thruster pl Attitude control system for spacecraft utilizing the thruster pl

1981-03-31

1983-10-04

Barefoot, Galen L.

Aeronautics and astronautics

Spacecraft

Attitude control

244 52, B64G 126

Patent

active

044074697

ABSTRACT:
An attitude control system for spacecraft having thrusters utilizes the exhaust plume of the thrusters for attitude control. At least one of the thrusters is canted so that its reaction line of thrust, when misaligned with one of the spacecraft's primary axes; causes a control torque to develop about said axis which aids the plume torque about said axis resulting from the plume of the one thruster impinging on a surface such as that of a solar panel on the spacecraft.

REFERENCES:
patent: 2395809 (1946-03-01), Goddard
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patent: 2919544 (1960-01-01), Smith, Jr. et al.
patent: 2926869 (1960-03-01), Sullivan
patent: 3206141 (1965-09-01), Dryden
patent: 3231223 (1966-01-01), Upper
patent: 3866025 (1975-02-01), Cavanagh
patent: 3907226 (1975-09-01), Neufeld et al.
patent: 3984071 (1976-10-01), Fleming
Sansevero et al., "On-Orbit Performance of the Hydrazine Reaction Control Subsystem for the Communications Tech. Sat.", AIAA/SAE 14th Joint Prop. Conf. 7-1978.
Baerwald, "Rocket Exhaust Plume Impingement on the Voyager Spacecraft", AIAA/SAE 14th Prop. Conf., 7-1978.
Ramirez et al., "Analysis of Exhaust Plume Impingement on a Navigational Sys. Sat.", 1979 JANNAF Prop. Meet. 3-1979.
Fundamentals of Gas Dynamics, Edited by Emmons, 1958, pp. 698, 702.

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