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M61 Vulcan 20mm Gatling Cannon

The M61 Vulcan is a 6 barreled, rotary action, air cooled, electrically fired weapon. The gun system is mated to a linkless ammunition storage and handling system. Each of the gun's six barrels fires only once during each revolution of the barrel cluster. The six rotating barrels contribute to long weapon life by minimizing barrel erosion and heat generation.

M61A1 Vulcan 20mm Gatling Cannon

Characteristics

Dimensions
Bore diameter: 20 millimeters 0.79 inches
Weight
Weight: 112.49 kilograms 248 pounds
Features
Caliber: 20×102 millimeter
Rate of fire: 4 000 or 6 000 shots per minute
Average recoil force (4000 shots per minute): 9 400 Newtons 2 133 pounds
Average recoil force (6000 shots per minute): 14 200 Newtons 3 200 pounds
Muzzle velocity: meters per second 3 380 feet per second
Feed system: Linked or linkless
Drive system: Hydraulic, electric, pneumatic
Number of barrels: 6

M61A2 Vulcan 20mm Gatling Cannon

The M61A2 is a lightweight version of the M61A1. Most of the weight savings was achieved by machining down the barrel thickness. It shares the same features as the M61A1, but is 20 percent lighter. The M61A2 meets or exceeds the M61A1 gun's reliability, maintainability and supportability features.

Characteristics

Dimensions
Bore diameter: 20 millimeters 0.79 inches
Weight
Weight: 91.63 kilograms 202 pounds
Features
Caliber: 20×102 millimeter
Rate of fire: 4 000 or 6 000 shots per minute
Average recoil force (4000 shots per minute): 9 400 Newtons 2 133 pounds
Average recoil force (6000 shots per minute): 14 200 Newtons 3 200 pounds
Muzzle velocity: meters per second 3 380 feet per second
Feed system: Linked or linkless
Drive system: Hydraulic, electric, pneumatic
Number of barrels: 6