[Dalewyn]

>Space Shuttle had a total of five engines (including the Solid Rocket Boosters).

Very minor nitpick, but the Space Shuttle had seven engines: Two SRBs, three SSMEs, and two OMS engines.

The SRBs and SSMEs were used for launch, and the two OMS engines were used in orbit.

[saberience]

Yep, you're correct. I was meaning for launch only but I wasn't specific. :)