Catastrophic release braces were a safety measure fitted to the underside of an Imperial-class Star Destroyer. They were used to eject the core of the main reactor in case of a meltdown.
Appearances
- Star Wars: Episode IV A New Hope (First appearance)
Sources
Episode IV Visual Guide — Chapter 3: Imperial Boarding Party on StarWars.com (original site is defunct) (First identified as Catastrophic release braces)