First RS-68A production unit ready

Pratt & Whitney Rocketdyne completed a series of Hardware Acceptance Reviews on the first RS-68A production rocket engine, validating the hydrogen-fueled engine is ready to power a heavy-lift vehicle into space. Engine 30003, the first of three RS-68A production engines to undergo a review, has been shipped to Decatur, Ala., for integration onto a United Launch Alliance Delta IV Heavy launch vehicle. RS-68A production engines 30004 and 30005 will undergo hardware reviews in March and April 2011 after completion of hot-fire testing at Stennis Space Center, Miss. The three engines are scheduled to boost the Delta IV Heavy next year carrying a government payload into orbit. (Source: PRNewswire, 03/08/11)