The Koensayr BTL-A4 Y-wing starfighter was crewed by a single pilot. The 16-meter-long attack starfighter had an ArMek SW-4 ion cannon turret which was preset to one of four arcs and was typically locked forward, although some pilots chose to lock it facing aft for extra cover. Easily modifiable, the variant boasted much greater endurance (as much as three times greater) over its earlier predecessor, but was penalized with less powerful deflector shields and loss of accuracy in the ion cannons. The loss of shield power provided a boost in engine power, but the combination proved insufficient and the Y-wing variant developed a poor reputation among its pilots, and the starfighter was said to move like a "sleepy Hutt." Although slow for ship-to-ship combat, it was still capable of engaging other craft, and the Y-wing was excellent when used for planetary bombing runs.