The GBk-585 hyperdrive motivator was a hyperdrive used on the UT-60D U-wing starfighter/support craft and the T-65B X-wing starfighter. One was mounted in each of the four 4J.7 fusial thrust engines of the UT-60D.
- Star Wars: X-Wing Deluxe Book and Model Set (First identified as GBk-585 hyperdrive motivator)
- Star Wars: Rogue One: The Ultimate Visual Guide
- Rebel Starfighters Owners' Workshop Manual