Engines capable of going faster then the speed of light I imagine are capable of acheiveing escape velocityProbably via a tug of some type. To my knowledge, there is no canonical explanation, but considering the existence of tractor beams, it's likely it was lifted into Earth orbit. Either that, or the Enterprise was able to leave under it's own power.Original timeline:
The USS Enterprise NCC-1701 was built at the San Francisco Fleet Yards in orbit around Earth, not on the ground.
The Enterprise was in a spacedock in the new series. They have to get on a shuttle to go up there, which is where they are in the second "throw up on you" bit.
Orbital tether. ProfessorTrek 01:29, July 21, 2011 (UTC)