View Full Version : Prepping for SLS: NASA Tests J-2 Engine

2011-Sep-29, 04:40 PM
On September 28, 2011, NASA conducted a 40-second test of the J-2X rocket engine. This is the most recent in a series of tests of the next-generation engine selected as part of the Space Launch System (SLS) architecture that ultimately carry humans into deep space. The engine was tested at the 99 percent power level [...]

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