The Gatling Gun-style weapon, which is based on the 20mm M61 Vulcan autocannon, can fire 20mm x 102mm rounds at an extremely high rate. It has a dual fire rate of either 3,000 or 4,500 rounds per ...

The so-called “Gatling” design relies on electric ... as an aircraft mounted weapon. In 1956 the gun was standardized as the M61 20mm cannon and entered service with both the United States ...

The American weapon uses the chassis of the M113 armored personnel carrier, on which the M61 Vulcan cannon (General Dynamics ...