The M197 electric cannon was developed primarily for use by United States Army helicopter gunships. Development began in 1967 after experience in the Vietnam War revealed the inadequacy of the 7.62 mm Minigun for gunship use.

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.

May 1, 2008 · The M197 electric cannon is a three-barreled electric Gatling gun developed primarily for use by United States Army helicopter gunships. Development of the M197 began in 1967 after experience in the Vietnam War revealed the inadequacy of …

The M197 electric cannon is a three-barreled electric Gatling-type rotary cannon used by the United States military. The M197 electric cannon' developed primarily for use by United States Army helicopter gunships.

Nov 19, 2021 · The XM915 cannon is being tested on a UH-60 Black Hawk, but is under development for the Army's Future Armed Reconnaissance Aircraft.

The M197 Electric Cannon was a weapons system developed by The US Army to improve upon the then new in-service M67 ''Vulcan'' 20mm Machine Gun. As previously discussed, The M67 was a relative of the 19th Century Gatlin Gun, which involves 5 to 6 rotating Gun barrels.

The M197 utilized by the AH-1 aircraft is a lightweight short-barreled three-barrel Gatling type gun. The M197 20mm Automatic Gun utilizes a rotary action mechanism, contained within a fixed rotor housing, and a rotating barrel cluster.

MIL-DTL-45500/5A, MILITARY SPECIFICATION: GUN, AUTOMATIC, 20MM: THREE-BARREL, HIGH RATE, M197 AND M197E1 (18-DEC-1996) [SUPERSEDING MIL-G-45500/5]., This specification is approved for use by all Departments and Agencies of the Department of Defense.

20mm M197 three barrel autocannon seen on a Japanese AH-1S attack helicopter. Note that the cowling is removed for maintainance. Source: HUnini - © CC BY-SA 4.0

The M197 electric cannon was developed primarily for use by United States Army helicopter gunships. Development began in 1967 after experience in the Vietnam War revealed the inadequacy of the 7.62 mm Minigun for gunship use.