The D-Eta 1 Droid Starfighter was designed and manufactured by Kuat Systems Engineering for use in the Cylon Imperium, and later Crimson Empire. The D-Eta 1 is actually a modified version of the Eta-3 Starfighter, which was the successor to the more well known Eta-2 Actis-class. The Cult of Shadow has also made use of this fighter after obtaining the design when they stole the Byyor Command.