Keywords: space shuttle main engine spaceshuttlemainengine ssme test stand teststand The conclusion of a test firing on the A-1 Test Stand illuminates the night sky at the John C. Stennis Space Center in Hancock County, Mississippi. The A-1 is one of three Test Stands at Stennis used for testing Space Shuttle Main Engines (SSME's). The conclusion of a test firing on the A-1 Test Stand illuminates the night sky at the John C. Stennis Space Center in Hancock County, Mississippi. The A-1 is one of three Test Stands at Stennis used for testing Space Shuttle Main Engines (SSME's). |