[Fyron]

Originally posted by Dan Kochheiser:
Basically, yes. In Starfire, tractors are used to 'grappel' two ships together. This chain of ships adds their hull spaces together and look at the class size one less than this. Then all units total thier engines and divide by the engine power for the figured hull and this gets your speed. Tugs would normally cary extra engines above those of useful for attaining max speed in one large room called the tug engine room. Tugs extra engines give them the ability to attain higher speeds during towing than thier small sizes would normally indicate.

There is really no way to implement this in SE4. You can not move another ship with a tug ship or anything.