Engineering:Yakushev-Borzov YakB-12.7mm machine gun
| Yak-B machine gun | |
|---|---|
.jpg) Yakushev-Borzov YakB-12.7 machine gun in the Prague Aviation Museum) | |
| Type | Aircraft rotary cannon |
| Place of origin | Soviet Union |
| Service history | |
| In service | 1973–present |
| Production history | |
| Designer | KBP |
| Manufacturer | KBP Instrument Design Bureau |
| Specifications | |
| Mass | 45 kg (99 lbs), cartridge weight 0.130 kg, bullet weight 0.048 kg |
| Length | 4.57 m (10 ft) |
| Width | 2.88 m (9 ft 5 in) |
| Shell | 12.7×108mm |
| Calibre | 12.7 mm |
| Barrels | 4 |
| Action | Gas-operated |
| Rate of fire | 4,000–5,000 rounds/min[citation needed] |
| Muzzle velocity | 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 cannon 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. It has a high rate of fire (4–5,000 rounds per minute) 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, side-mounted GSh-30K or the 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[2] but it is still used on Mil Mi-24,[3] Mil Mi-36, and Mil Mi-40 helicopters.
Users
Russia
- Former users
Soviet Union
See also
- GAU-19, a Western 12.7 mm powered Gatling gun
- List of Russian weaponry
- List of multiple barrel firearms
References
- ↑ "Yakushev-Borzov Yak-B". Weaponsystems.net. http://weaponsystems.net/weaponsystem/II04%20-%20Yak-B.html. Retrieved 2018-04-22.
- ↑ "[1.0] Hind Variants / Soviet Service". Faqs.org. http://www.faqs.org/docs/air/avhind1.html#m3. Retrieved 2018-04-22.
- ↑ Mladenov, Alexander (2012-07-20). Mil Mi-24 Hind Gunship. ISBN 9781846039546. https://books.google.com/?id=tlW1CwAAQBAJ&pg=PA48&lpg=PA48&dq=Mil+mi+40+Yak-B+12.7mm#v=onepage&q=Mil%20mi%2040%20Yak-B%2012.7mm&f=false.
- Koll, Christian (2009). Soviet Cannon: A Comprehensive Study of Soviet Arms and Ammunition in Calibres 12.7mm to 57mm. Austria: Koll. p. 64. ISBN 978-3-200-01445-9. http://www.russianammo.org.
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