KSC-04pd-2514
KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, the Hyster lift backs away from the orbiter Discovery after placing a Space Shuttle Main Engine (SSME) into position for installation. Discovery is the vehicle designated for the Return to Flight mission STS-114. Overall, an SSME weighs approximately 7,000 pounds. An SSME operates at greater temperature extremes than any mechanical system in common use today. The liquid hydrogen fuel is -423 degrees Fahrenheit, the second coldest liquid on Earth. When the hydrogen is burned with liquid oxygen, the temperature in the engine's combustion chamber reaches +6000 degrees Fahrenheit -- that's higher than the boiling point of Iron. The maximum equivalent horsepower developed by the three SSMEs is just over 37 million horsepower. The energy released by the three SSMEs is equivalent to the output of 23 Hoover Dams.
Usage Rights
Most NASA images are in the public domain and free to use. Credit NASA as the source. Check NASA's media usage guidelines for details. Images featuring identifiable individuals may require additional permissions.
Details
NASA ID
04pd2514
Date Created
December 8, 2004
Center
KSC
Media Type
image
Photographer
NASA or National Aeronautics and Space Administration
Downloads
Download this image in multiple resolutions. All NASA media are free for public use.