This mfa file includes two frames. On the first frame are two ships, one that duplicates MMF's 8 direction motion and another that is almost identical but cuts down on the diagonal motion to make it more like real life.
The second frame has a ship with what I will call space motion. It acts like a ship would act in space with a single engine that points in just one direction. You can increase and decrease the acceleration and the motion of the ship is programed with fairly realistic physics equations.
Perhaps someone will find these useful.