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810 m/s (2,657 ft/s) The Yakushev-Borzov YakB-12.7 mm[1] is a remotely controlled 12.7×108mm caliber four-barrel rotary heavy machine gun developed by the Soviet Union in 1973 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.
12.7 mm machine guns. Machine guns of 12.7 mm or .50 caliber, usually employed as heavy machine guns and as vehicle and aircraft armament.
The 12.7×81mm cartridge allowed the Type 1 to fire at a rate of 900 RPM, but the poor suitability of the Browning's action to synchronization reduced the rate of fire to 400 RPM in synchronized installations. [1] However, the Japanese source and Allied Intelligence reports [7] did not mention that this machine gun had a propeller ...
2000 m. Feed system. 50-round linked belt. Sights. Iron sights. The Kord-12.7 mm heavy machine gun is a Russian design that entered service in 1998 [ 3] replacing the older NSV machine gun. Externally the weapon resembles the NSV; however, the internal mechanism has been extensively reworked, changing from a horizontally pivoting breech block ...
The NSV Utyos ( Cyrillic: НСВ, initialism for Никитин-Соколов-Волков, Nikitin-Sokolov-Volkov; Russian: Утёс, lit. 'Cliff'), is a Soviet heavy machine gun chambered in 12.7×108mm. It is named after the designers, G. I. Nikitin, Y. М. Sokolov and V. I. Volkov. It was designed to replace the DShK machine gun and was ...
The 12.7 × 108 mm has 22.72 ml (350 grains) H 2 O cartridge case capacity. 12.7 × 108 mm maximum cartridge dimensions.[citation needed] All sizes in millimeters (mm). Americans define the shoulder angle at alpha/2 ≈ 18.16 degrees. According to guidelines the 12.7 × 108 mm case can handle up to 360 MPa (52,213 psi) piezo pressure.
UBK UBS UBT. In 1937, Mikhail Berezin [] began designing a new large-caliber aircraft machine gun chambered to the 12.7 mm round used by infantry machine guns. The new design passed factory trials in 1938 and was accepted into service in 1939 under the designation BS (Березин Синхронный, Berezin Sinkhronniy, Berezin Synchronized).
During the mid-1970s, China decided to develop a lighter 12.7 mm machine gun to replace the Type 54 (indigenous DShK) that was more suited for mobile anti-aircraft applications. The weapon was adopted in 1977 and mass production commenced in 1980. To save weight the Type 77 used a hybrid short-recoil and direct gas impingement operated action ...