DERILICT SHIPS?

[HEMAN]

Thanks players for responses, VAL idea ,Be much neater if it could be like "ancient ruins" in space, or if an actually ship would appear in the sector that you have to repair and cart back to be analyzed. This is a great idea?.
My idea, a derlict from the future, come back to the past, has (unique hull size) (has unique componets)but has no engines or has no crew department. Perhaps a way two tow it?, or to build shipyard ship for engine repair,or crew repair?.