Tucked away in a corner outside the main entrance to Building 4205 were three
signs with no accompanying engines. This one reads
The Space Shuttle Main Engine
Marshall's Legacy of Flight
Three space shuttle main engines power the space shuttle orbiter, NASA's
flagship launch vehicle since 1981.
NASA's Marshall Space Flight Center manages all shuttle propulsion elements,
including the space shuttle main engines. NASA engineers have continually
upgraded and refined the engines during the lifetime of the shuttle fleet.
Most recently, Marshall unveiled the stronger, more durable, more efficient
Block II space shuttle main engine, which first flew on the STS-104 mission in
SSME Quick Facts
||Liquid Oxygen/Liquid Hydrogen (5.5 mix)
|Thrust (at sea Level):
|No. of Flights: