SSME

The SSME is a fine reusable engine, which many upgrade paths available, and the RS-68 is a disposable engine with serious issues, and is already flying and ready to go on the rockets for which it was designed.

Ares V Update - NASA Watch 2009

In order to access to the SSME from the code you have to add to your .cs file this namespace:

Site Home Giuseppe Guerrasio 2010

The SSME is the only fully reusable high-performance rocket engine rated for human space flight.

The Earth Times Online Newspaper 2010

The SSME is the only fully reusable high-performance rocket engine rated for human space flight.

The Earth Times Online Newspaper 2010

If we choose, we can make modest upgrades to the HLLV to convert it to an in-line HLLV (existing RSRMs, modified ET, relocated SSME, and some kind of upperstage: some choice of RL-10s, RL-60s, or J2-X) that will be capable of putting 120mT in low earth orbit.

New Uses for Constellation Systems? - NASA Watch 2009

Or, would regenerative RS-68 need to be developed with their greater thrust but slightly less Isp than the SSME?

The 1990 Augustine Commission Revisited - NASA Watch 2009

Look the Shuttle & SSME (Space Shuttle Main Engine) are one hell of an technological accomplishment, and the most advanced machine ever made, but it remains experimental and has proven to be unsafe twice at the loss of 14 astronauts.

Obama Joins in on New NASA Administrator Gossip - NASA Watch 2009

This is derived from a set of extant components: The Shuttle ET, the four-segment RSRM, the SSME core engine and the RL-10B-2 upper stage engine (currently used on the D-IVH).

Ares Troubles Mount - NASA Watch 2009

The decision for Constellation to go with the Delta's RS-68 in lieu of the SSME {Space Shuttle Main Engine} is smart, it's cheaper, way simpler, & Safer.

Obama Joins in on New NASA Administrator Gossip - NASA Watch 2009

But it does suddenly make the shuttle and EELVs operationally attractive again should the money become available to operate these systems simultaneously, and in a complementary manner in the future, and it now sets the bar for any future true second generation SSME based launch vehicle development operations. common sense

Vote To Keep Mike - NASA Watch 2009