jeff findley wrote:
One more data point. The Soyuz TMA has a listed delta v of 390 m/s,
which is a bit more than 1/2 that of Endeavour and less than 1/7 that
of the Apollo CSM.

That may be a product of Soyuz's role as a dedicated taxi as opposed
to the Shuttle's partial role as a general purpose orbiter. The
Shuttle's listed delta-V may be misleading if it's at the orbiters
empty weight. Unlike Soyuz and Apollo, the Shuttle's payload varies
greatly and is an appreciable fraction of the total mass.

D.
--
The STS-107 Columbia Loss FAQ can be found
at the following URLs:

Text-Only Version:
http://www.io.com/~o_m/columbia_loss_faq.html

Enhanced HTML Version:
http://www.io.com/~o_m/columbia_loss_faq_x.html

Corrections, comments, and additions should be
e-mailed to , as well as posted to
sci.space.history and sci.space.shuttle for
discussion.