Attached Link: http://en.wikipedia.org/wiki/Shuttle-A

If you want to have a go at a simulation of a similar shuttle like this one (not in looks but in function) than you should try Orbiter and throw Shuttle-A around for a bit.

This shuttle has two rotating engine pods but when flying from the moon or in low earth orbit you don't need those, the two main engine and two lift engines are more than sufficient.

http://orbit.medphys.ucl.ac.uk/orbit.html
The simulator is a closed source project, but free to download.

Robert van der Veeke Basugasubasubasu Basugasubakuhaku Gasubakuhakuhaku!! "Better is the enemy of good enough." Dr. Mikoyan of the Mikoyan Gurevich Design Bureau.