SW-4 ion cannon

The SW-4 was a dual ion cannon manufactured by ArMek during the early years of the Galactic Empire. It was most commonly used aboard BTL Y-wing starfighters of the Alliance to Restore the Republic.
The SW-4 ion cannon was a notoriously delicate weapon system, and its internal crystal matrices invariably vibrated out of alignment during flight or combat. Rebel mechanics came to dislike the SW-4 due to the time they were forced to put in to maintain the cannons. At the Battle of Yavin, only two of the Alliance's Y-wing fighters had functional ion cannons.
The BTL-S3 Y-wing variant had space for a weapons systems officer, who manually operated the SW-4 turret when necessary. Single-pilot variants had their cannons locked forwards for optimum covering fire, though some pilots chose to lock it facing aft to counter pursuers.
==Behind the scenes==
In Star Wars: Battlefront II these cannons are replaced with repeating blasters, this is probably for game balancing.
==Appearances==
*Star Wars: Rogue Squadron
*Star Wars: Rogue Squadron II: Rogue Leader
*X-Wing: Rogue Leader 1
*X-Wing Rogue Squadron 21
*X-Wing Rogue Squadron 22
*X-Wing Rogue Squadron 23
*X-Wing Rogue Squadron 24
*X-Wing Rogue Squadron 25 
*X-Wing Rogue Squadron 26
*X-Wing Rogue Squadron 30
*X-Wing Rogue Squadron 31
*X-Wing Rogue Squadron 33
*X-Wing Rogue Squadron 35
==Sources==
*The Stele Chronicles
*Star Wars Screen Entertainment
*Star Wars Technical Journal of the Rebel Forces
*The Essential Guide to Vehicles and Vessels
*Star Wars Handbook 1: X-Wing Rogue Squadron 
*Star Wars: Rogue Squadron: The Official Nintendo Player's Guide
*Star Wars: Incredible Cross-Sections
*Starships of the Galaxy
*Star Wars Galaxies: Jump to Lightspeed: Prima Official Game Guide
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*Star Wars: Empire at War: Prima Official Game Guide
*Star Wars: Empire at War: Forces of Corruption Expansion: Prima Official Game Guide
*Star Wars Blueprints: Rebel Edition
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Category:ArMek products
Category:Starship-mounted ion cannons