F-35B BF-01 completes the first ever aircraft-mounted test of the podded GAU-22/A cannon.
The GAU-22/A is the latest application of the GAU-12/U, which is a four-barrel version designed for use on the F-35 Lightning II.
The CTOL version of the aircraft will carry the gun internally, while the STOVL and CV versions use it as an external podded gun.
The GAU-22/A’s major difference is the use of four barrels, rather than the five barrels on the GAU-12/U. The GAU-22/A is lighter, has a reduced rate of fire of 3,300 rounds per minute and an improved accuracy of 1.4 milliradians as compared to the GAU-12.
This system is undergoing intensive testing and qualification. The weapon is currently produced by General Dynamics Ordnance and Tactical Systems.