J-2X powerpack completes 2012 testing ahead of SLS role

December 14, 2012 by Chris Bergin

The powerpack assembly for the Pratt & Whitney Rocketdyne (PWR) J-2X engine has completed its year of testing at NASA’s Stennis Space Center in Mississippi. The engine is set to provide the Earth Departure Stage (EDS) role for astronauts and hardware heading to destinations in deep space, should NASA opt to evolve SLS to the Block II configuration.

J-2X and SLS:

The new Heavy Lift Launch Vehicle (HLV) is currently set to evolve through three major configurations, opening with a 70mt Block 1 design, providing the vehicle for what is presently two test missions to send Orion on an uncrewed – then crewed – flight around the Moon.

These two missions using the Block 1 – Exploration Flight Test -1 (EM-1) and Exploration Flight Test -2 (EM-2) – are currently scheduled for 2017 and 2021 respectively.

Read more: J-2X powerpack completes 2012 testing ahead of SLS role | NASA Space Flight.

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