The 4K7 Dual Line ion engine was a type of ion engine that was manufactured by Cygnus Spaceworks for use in that company's Assault Gunboat, which saw service with the Imperial Navy during the Galactic Civil War.
Appearances
- "The Farlander Papers" — Star Wars: X-Wing (First appearance, simultaneous with Star Wars: X-Wing)
- Star Wars: X-Wing
- Star Wars: TIE Fighter
- "The Stele Chronicles" — Star Wars: TIE Fighter