Sinclair pilots the Star Fury to match the movement of the disabled ship, and he then attaches a grapple to it. Both ships continue moving along the same course, as they should. But when he fires the thrusters to keep from colliding with the station, both ships immediately move off at a right angle to their previous course. Inertia would cause the movement to be an arc of some sort.
When the Soul Hunter is on his way to find the commander, he passes a sign on the wall that says (sic) "Securty Area"