Interdictor cruisers had the same general shape as a Star Destroyer, but were much smaller. They featured four gravity-well projectors which were employed both to pull vessels out of hyperspace and keep them from making the jump to hyperspace.
Behind the scenesEdit
The concept of the Galactic Empire disabling vessels' hyperspace capabilities using Interdictor vessels first appeared in Heir to the Empire, a 1991 novel by Timothy Zahn that was the first in a trilogy featuring events set several years after the conclusion of the final film of the original trilogy. While this trilogy is now considered part of the franchise known as Star Wars Legends and no longer canon, Interdictor cruisers were featured in novels such as Tarkin and Heir to the Jedi, which are considered part of new a continuity of canon.