Hydrogen is the powerful fuel used by the space shuttle main engines.

Apart from the space shuttle main engine, the United States developed no new power plants for liquid rockets after the 1960's.

The main engines will all be liquid-fueled, using hydrogen and oxygen (like the Space Shuttle main engine).

Each F-1 engine had more thrust than three Space Shuttle Main Engines combined.

All space shuttle main engines had to pass a series of test firings at Stennis prior to being installed in the back of an orbiter.

Although the HG-3 was never built, its design formed the basis for the Space Shuttle Main Engine.

The Space Shuttle Main Engine has the highest specific impulse of ground-launched rocket engines to fly.

This sort of growth appeared to be destined to continue in the 1970s when Rocketdyne won the contract for the Space Shuttle Main Engine.

The specific impulse of a rocket engine is independent of velocity, and common values are between 200 and 600 seconds (450s for the space shuttle main engines).

The Space Shuttle Main Engine has been replaced with a ball of exotic matter originating in the theoretical island of stability.

The proposal involved using, at various times, existing spaceframes, Space Shuttle Main Engines that had reached maintenance lifetime limits, and spare navigation computers.

Lander software structure reflected common short-cycle real-time control concepts such as those used in the Space Shuttle Main Engine Controllers.

Stennis Space Center: Space Shuttle Main Engine testing, geographic information systems, small spacecraft technology, commercial remote sensing.

The broadly equivalent measure of rocket engine efficiency is chamber pressure/exit pressure, and this ratio can be over 2000 for the Space Shuttle Main Engine.

After graduation he began working for Boeing in the Space Shuttle Main Engine group focusing on liquid hydrogen and liquid oxygen turbo machinery.

During the shuttle era it was modified to test the Space Shuttle Main Engine(SSME).

The engine was designed to use many new technologies including ones developed for the Space Shuttle Main Engine (SSME).

The Space Shuttle Main Engine is another example of a staged combustion engine, and the first to use liquid oxygen and liquid hydrogen.

Until liftoff actually occurs, the Space Shuttle main engines (SSMEs) can be safely shut down and the launch aborted if necessary.

He has served as the Astronaut Office representative for the space shuttle main engines, the solid rocket boosters, the Space shuttle external tank, and shuttle safety.

The Space Shuttle Main Engines each have a damper in the LOX line, but not in the hydrogen fuel line.

These valves are used to synchronize the flow of gaseous hydrogen between the external fuel tank and the Space Shuttle Main Engines, creating an even flow.

The launch attempt on 22 March was aborted automatically at T-3 seconds when computers detected an incomplete ignition of the number three Space Shuttle Main Engine.

Robert Winglee, who originally proposed the M2P2 technique, calculates a specific impulse of 200 kN s/kg (roughly 50 times better than the space shuttle main engine).

Mr. Dumbacher is assistant manager of the space shuttle main engine project at the Marshall Space Flight Center in Huntsville, Ala.