4j.4 fusial thrust engine/Legends

4j.4 fusial thrust engines were advanced sublight drive engines manufactured by Incom Corporation for use aboard X-wing space-superiority starfighters. Providing even more power than their predecessor—the 4L4 fusial thrust engine—the 4j.4 engine was often used in Incom's XJ-series X-wings.

Sources

• The Farlander Papers
• Star Wars Screen Entertainment
• Star Wars Technical Journal of the Rebel Forces
• The Stele Chronicles
• The Essential Guide to Vehicles and Vessels
• Star Wars Omnibus: X-Wing Rogue Squadron Volume 1
•  X-wing starfighter in the Databank (content now obsolete; backup link)