J-2X Test Series Proves Part Integrity

Engineers at NASA's Marshall Space Flight Center gave a key component of the J-2X engine a brisk workout to ensure it can withstand its extreme operating environment. The engine's fuel turbopump first stage nozzle passed the test, performing even better than expected.

The J-2X is a highly efficient and versatile upper stage rocket engine that can stop and restart in space to support a variety of mission requirements. Full-scale testing begins later this summer but before then, engineers exam [...]

Full story at http://spacefellowship.com/news/art25726/j-2x-test-series-proves-part-integrity.html