427 was the designation of a group of three CR90 corvettes that served in the Imperial Navy during the Galactic Civil War. They were part of the task force, led by the Imperial-class Star Destroyer Invincible, during Operation Strike Fear where they served as support for the EF76 Nebulon-B escort frigate Warspite. While mustering in the Dellalt system they were identified as carrying military equipment by a Rebel reconnaissance mission flown by Keyan Farlander in a lone R-22 Spearhead.
- X-Wing: The Official Strategy Guide
- X-Wing Collector's CD-ROM: The Official Strategy Guide