Re: SSME vs. J2 / RS-68





landings.geo@xxxxxxxxx wrote:

Any thoughts on the proposed possible engine changes to the proposed
HLV?

URL: http://tinyurl.com/omhpx



I assumed due to its non-reuseable design nature the RS-68 would make a better choice.
SSME's are wonderfully efficient engines, but they ain't cheap.

Pat
.