| Type | Gatling-style autocannon |
|---|---|
| Place of origin | United States |
| Service history | |
| In service | since 1977 |
| Used by | United States Air Force (Avenger) Various navies (Goalkeeper) |
| Production history | |
| Designer | General Electric |
| Manufacturer | General Electric General Dynamics |
| Produced | since 1977 |
| Variants | GAU-12/U Equalizer GAU-13/A |
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The GAU-8 itself weighs 620 pounds (280 kg), but the complete weapon, with feed system and drum, weighs 4,029 pounds (1,828 kg) with a maximum ammunition load. It measures 19 ft 5+1⁄2 in (5.931 m) from the muzzle to the rearmost point of the ammunition system, and the ammunition drum alone is 34.5 inches (88 cm) in diameter and 71.5 inches (1.82 m) long. Power for operating the gun is provided by twin hydraulic motors pressurized from two independent hydraulic systems. The magazine can hold 1,174 rounds, although 1,150 is the typical load-out. Muzzle velocity when firing armor-piercing incendiary rounds is 1,013 m/s, almost the same as the substantially lighter M61 Vulcan's 20 mm round, giving the gun a muzzle energy of just over 200 kilojoules.
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The GAU-8 was created as a parallel program with the A-X (or Attack Experimental) competition that produced the A-10. The specification for the cannon was laid out in 1970,[4] with General Electric and Philco-Ford offering competing designs.
General Electric GAU-8/A Avenger is a 30 mm hydraulically driven seven-barrel Gatling-style autocannon
The GAU-8/A is extremely accurate and can fire up to 3,900 rounds per minute without complications