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Sigma KEE - GAU12U
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GAU-12U Equalizer cannon
The five-barrel 'Equalizer' cannon was developed in the late 1970s, based on the mechanism of the GAU-8/A Avenger cannon, but firing a new NATO series of 25 mm ammunition. The GAU-12U cannon is operated by a 15 hp (11 kW) electric motor, in external mounts supplied by a bleed air-drive pneumatic system. Its rate of fire is normally 3,600 rounds per minute, with a maximum of 4,200 rounds per minute. The Equalizer normally uses PGU-20/U armor-piercing incendiary (API) or PGU-22 or PGU-25 high-explosive incendiary (HEI) ammunition. With a harder-hitting projectile and comparable muzzle velocity, it is more lethal than the older M61 Vulcan, and more effective than the older 30 mm ADEN cannon it replaces. (from Wikipedia)
Relationships      
Parents anti-armor weapon A weapon designed to damage the armor of military vehicles or bunkers
  Gatling gun The Gatling gun was the first highly successful rapid-repeating firearm. It was the first firearm to combine reliability, high firing rate and ease of loading into a single device. It was designed by the American inventor Richard J. Gatling, in 1861 and patented on May 9, 1862. In modern usage it typically refers to guns with a similar rotating barrel design. Depending on how one defines the term, the Gatling gun is not the first machine gun, despite frequent references to it as such, machine guns operate entirely on a fraction of the power of the fired cartridge, while the Gatling relies on external power (hand crank, or electric/hydraulic motor). (from Wikipedia)


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