What is the Rocketdyne RS-68?

Answer by  GilFinn (2065)

It is a new liquid fueled rocket engine developed by Pratt and Whitney's Rocketdyne division. It uses an improved and simplified design that has allow them to build a larger and and less expensive rocket propulsion system. It will allow greater payloads to be launched into space for a lot less expense.

Answer by  Haggis96 (143)

The Rocketdyne RS-68 is a liquid-fuel rocket engine that burns liquid hydrogen with liquid oxygen, and it's the largest hydrogen-fueled engine in the world. It was developed by Pratt & Whitney for the NASA in the 1990s to produce a simpler, cheaper, heavy-lift engine for the Delta IV launch system.

Answer by  Lil (7)

RS-68, is a liquid-fuel rocket engine that burns LH2 and LOX. They are used for NASA, there's a couple more improved versions of the RS-68.