Nahona Aeronautics and SpaceAdministration
Lyndon B. Johnson Space Centez Houston,Texas77058 AC713 483-5111
ForRelease September 7, 1978
SHUTTLE MANEUVER ENGINE TESTED AT WHITE SANDS
A test version of the rocket engine that will be used to maneuver
the Space Shuttle Orbiter was test fired September 6, at the NASA White Sands Test Facility near Las Cruces, New Mexico. The 10-second duration burn was the first test firing of the
6000-pound thrust engine in combination with the propellant tanks, feedlines and other components in the Orbital Maneuvering Subsystem
Shuttle Orbiter has OMS pods on each side of
lage and adjacent to boost the spacecraft
the three 470,O00-pound into orbit.
the aft engines
The OMS engines burn nitrogen tetroxide and monomethyl hydrazine as oxidizer and fuel, and are designed to be reuseable for up to 100
space missions with 1000 starts for a total 15 hours firing lifetime. Among the orbital duties of the OMS engines are thrust for final orbital insertion at the end of launch phase, orbit circularization, orbit
transfer and changing, rendezvous maneuvers and deorbit burns.
Wednesday's test firing was a checkout of the OMS pod and test stand compatibility and of the test data system.
The first series of 24 engine firings up to 60-seconds duration
was completed the following day. ###