AIRCRAFT GUN AND GUN SYSTEMS
20mm M-197 Gatling Gun
M-197 Gatling Gun
20mm M-197 Gatling Gun
Three-barrel version of the M61A1 Gatling Gun
The 20mm M-197 produced by General Dynamics Ordnance and Tactical Systems is a lightweight, three-barrel version of the M61A1 Gatling gun intended for applications that require a lightweight, highly reliable weapon capable of firing up to 1,500 shots per minute.
The gun is specifically designed for helicopters, light fixed-wing aircraft and small naval attack vessels. It is adaptable for turret, pod, pintle or internal installations using either linked or linkless ammunition feed systems. Currently, the M-197 arms the Marine Corps AH-1J, AH-1T, AH-1W and AH-1Z. The M-197 is also used in the GPU-2/A 20mm gun pod.
Power requirements for the M-197 are lower than most weapons offering comparable rates of fire due to the M-197’s continuous rotary motion. The M-197 is also capable of firing longer burst lengths than its competitors.
20mm M-197 Specifications
|
Weight |
132 pounds (60 kg) |
|
Rate of fire |
Up to 1,500 shots per minute |
|
Dispersion |
8.0 milliradians diameter, |
|
Muzzle velocity |
3,380 feet (1,030m) per second |
|
Average recoil force |
1,300 pounds (5.8 kN) |
|
Drive system |
Hydraulic, electric, pneumatic |
|
Feed system |
Linked or linkless |
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