Ed Kyle wrote:
Has anyone else noticed that the proposed
SRB/SSME "Stick" vehicle has a second stage
diameter that is roughly the same as the
diameter of the Delta IV Common Booster
Core (5.1 meters)? And, by the way, that
the SRB/SSME second stage length seems to
be not much less than the length of a CBC?

- Ed Kyle

also roughly the same diameter as the Falcon IX from SpaceX!
(yes, okay, fairing diameter, not core, and yes, spacex would probably
not want to work with a NASA integrated upper stage)


http://www.spacex.com/index.html?sec...%23reliability

But hey--maybe NASA's just looking for commonality across several
providers?

Tom