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The Yakushev-Borzov YakB-12.7 mm is a remotely controlled 12.7×108mm caliber four-barrel Gatling gun developed by the Soviet Union for the Mil Mi-24 attack gunship and low-capacity troop transporter, with 1470 rounds, which can also be mounted in GUV-8700 machine-gun pods with 750 rounds. It has a high rate of fire and is also one of the few self-powered guns of the Gatling type (i.e. it is gas-operated, rather than requiring an external motor to operate). On the Mi-24 it is mounted in the VSPU-24 undernose turret, with an azimuth of 60° to either side, an elevation of 20°, and a depression of 60°. The gun is slaved to the KPS-53AV undernose sighting system with a reflector sight in the front cockpit. It was replaced by the fixed, chin-mounted GSh-30K or the smaller caliber but swivel-mounted GSh-23L in the late mark of the Mi-24 helicopters, as it did not provide enough firepower against dug-in or lightly armored targets that did not necessitate a rocket attack.〔http://www.faqs.org/docs/air/avhind1.html#m3〕 ==See also== * GAU-19, a Western 12.7 mm powered Gatling gun * List of Russian weaponry * List of multiple barrel firearms 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yak-B 12.7mm machine gun」の詳細全文を読む スポンサード リンク
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