>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

>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.