J-2X powerpack

The June 8, 2012, test of the J-2X powerpack on the A-1 Test Stand at NASA's Stennis Space Center set a new record of test duration, lasting 1,150 seconds, almost 20 full minutes. It was the longest-duration test firing ever conducted in the A Test Complex. The results of this test will be useful for determining performance and hardware life for the J-2X engine turbopumps.