T249 'Vigilante' Self Propelled Anti-Aircraft Vehicle | ROTARY CANNON FIREPOWER
April 17, 2020
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11:05Now PlayingT249 'Vigilante' Self Propelled Anti-Aircraft Vehicle | ROTARY CANNON FIREPOWER
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as posted by the channelThe T249 Vigilante was a prototype 37 mm self-propelled anti-aircraft gun (SPAAG) designed as a replacement for the Bofors 40 mm gun and M42 Duster in US Army service. The system consisted of a 37 mm T250 six-barrel Gatling gun mounted on a lengthened M113 armored personnel carrier platform.
In the early 1960s, the Army decided that gun-based systems were outdated, and canceled further development in favor of the MIM-46 Mauler missile system that also failed to enter service. The designer, the Sperry Utah Engineering Laboratory, later revived the Vigilante, rechambering it for NATO-standard 35x228mm rounds and mounting it on a M48 tank chassis for the DIVADs contest. However, it ultimately lost to Ford's M247 Sergeant York that also failed to enter service.
Very little information exists of the T249 Vigilante and its T250 cannon. The conceptual design for the T250 cannon was initiated in 1956. While the design of cannon of this caliber would ordinarily be handled by Watervliet Arsenal, it was decided that Springfield Armory would take responsibility due to their previous development experience with smaller caliber rotary cannon such the 20mm T171. The T250 was the largest Gatling gun ever assembled. Its 37x219mmSR round was based upon a shortened and necked-down 40x311mmR Bofors cartridge case. Hydraulically powered, the gun was able to vary between 120 rpm for (especially stationary) ground targets and 3,000 rpm for air targets.
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T249 'Vigilante' Self Propelled Anti-Aircraft Vehicle | ROTARY CANNON FIREPOWER
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