John C. Stennis Space Center - Test Stands

Test Stands

The Engineering & Science Directorate (ESD) at SSC operates and maintains SSC's rocket test stands.

A-1
The A-1 test stand was originally designed to test the Apollo Saturn V Second Stage (S-II). It supports a maximum dynamic load of 1.7 M lbf.
A-2
The A-2 test stand is used for J-2X Engine testing. It supports a maximum dynamic load of 1.1 M lbf.
A-3
NASA has begun construction of the new A-3 test stand at SSC. The A-3 stand will be used for testing J-2X engines under vacuum conditions simulating high altitude operation. A-3 will also be operable as a sea-level test facility.
B-1/B-2
The B-1/B-2 test stand is a dual-position stand supporting a maximum dynamic load of 11M lbf. It was originally built to simultaneously test the five F-1 engines of a complete Saturn-V S1-C first stage. During the shuttle era it was modified to test the Space Shuttle Main Engine(SSME). It is currently used for Delta IV rocket engine testing.
E-Complex
The E-Complex supports testing of small engine and single/multiple components.

  • Shuttle main engine test in the A-1 Test Stand.

  • Construction of the A-2 Test Stand.

  • A-3 test stand under construction in March 2011.

  • Test firing of a Space Shuttle main engine in the A-1 Test Stand.

  • Installation of a 35,000-gallon liquid oxygen tank atop the A-3 Test Stand.

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