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The M61 Vulcan is a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm × 102 mm (0.787 in × 4.016 in) rounds at an extremely high rate (typically 6,000 rounds per minute).
The M163 Vulcan Air Defense System (VADS), officially Gun, Air Defense Artillery, Self-Propelled 20-mm, M163, is a self-propelled anti-aircraft gun (SPAAG) that was primarily used by the United States Army. The M163 provides mobile, short-range air defense protection for ground units against low-flying fixed-wing aircraft and helicopters.
The two versions of the Vulcan Air-Defense System, the towed M167 and self-propelled M163 VADS, were developed by the United States Army Weapons Command at Rock Island Arsenal in 1964. They were accepted as a replacement for the M45 Quadmount in 1965, and first production M167s were delivered to the U.S. Army in 1967.
The basis of the system is the 20 mm M61 Vulcan rotary cannon, used by the United States military on various tactical aircraft since 1959, linked to a K u band fire control radar system for acquiring and tracking targets. This proven system was combined with a purpose-made mounting, capable of fast elevation and traverse speeds, to track ...
Fast draw, also known as quick draw, is the ability to quickly draw a handgun and accurately fire it upon a target in the process. This skill was made popular by romanticized depictions of gunslingers in the Western genre , which in turn were inspired by famous historical gunfights in the American Old West .
The OTO 127/64 LW (light-weight) Gun assembly is a rapid-fire gun mount suitable for installation on large and medium size ships. It also has a version for coastal defense, intended for surface fire and naval gunfire support as main role and anti-aircraft fire as secondary role.
The complete system was known as the M48 Chaparral Intercept-Aerial Guided Missile System, [2] composed of the M54 Launching Station atop the M730 carrier, a M113 variant. M730A1 had M113A2 improvements, while M730A2 was upgraded to M113A3 standard complete with diesel engine
The T249 Vigilante was a prototype 37 mm self-propelled anti-aircraft gun (SPAAG) designed as a replacement for the Bofors 40 mm gun in both towed and self-propelled forms in US Army service. [1] The system consisted of a 37 mm T250 six-barrel rotary cannon mounted on a modified M113 armored personnel carrier chassis.