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The GAU-22/A's major difference is the use of four barrels, rather than the GAU-12/U's five barrels. The GAU-22/A is lighter and has a reduced rate of fire of 3,300 rounds per minute, but maintains the same, high accuracy of 5 milliradians , 80% circle [ 2 ] of the GAU-12 [ 3 ] and A-10's GAU-8. [ 4 ]
English: The General Dynamics GAU-12/U Equalizer: a five-barrel 25 mm Gatling gun-style rotary cannon used by the United States, Italy and Spain, mounted in their fighter jets such as the AV-8B Harrier II, airborne gunships such as the Lockheed AC-130, and land-based fighting vehicles.
Some of the GAU-8/A technology has been transferred into the smaller 25 mm GAU-12/U Equalizer, which was developed for the AV-8B Harrier II aircraft. The GAU-12 is about the same size as the 20 mm M61. GE has also developed the GAU-13/A, a four-barreled weapon using GAU-8/A components, which has been tested in podded form as the GPU-5/A.
The resulting weapon used a smaller version of the GAU-8/A, designated the GAU-13/A, with only four barrels. Podded, the system weights 1,900 lb (860 kg) loaded with 353 rounds of 30 mm ammunition in two helical layers surrounding the gun (for reduction of overall size). The pod is completely self-contained with a rate of fire of 3,000 rpm. [19]
On 9 July 2012, the Air Force type classified a new version of the Bushmaster called the GAU-23/A. The cannon will be used on the AC-130W and the AC-130J gunships. [5] Mk 46 Mod 2 GWS aboard San Antonio-class amphibious transport ship Green Bay, 2016. The U.S. Navy uses the Mk44 Bushmaster II in the Mk 46 Mod 2 Gun Weapon System (GWS).
It has a cyclic rate of fire of 730+-50 rounds per minute. Standard practice is to fire the cannon in 30- to 50-round bursts. With extended automatic firing from a hover, the recoil is sufficient that the application of forward cyclic to maintain one's position over the ground is inadequate.
A LAV-AD during live-fire exercise in 1999. LAV-AD (Air Defense) LAV fitted with an electric turret mounting a General Dynamics GAU-12 Equalizer 25 mm (0.984 in) 5-barreled Gatling cannon, and two missile pods each with 4 FIM-92 Stinger missiles for short range air defense duties. Capacity for 990 rounds of 25 mm ammunition, and 16 (including 8 ...
The ammunition used in the M242 may also be used in a variety of weapons such as the GAU-12 Equalizer, the French Giat M811, or the Swiss Oerlikon KBA weapon system. It has the capability to fire U.S. manufactured ammunition as well as the NATO equivalents thereof. Primarily though, it fires six types of rounds: the M791, M792, M793, M910 ...