avia.wikisort.org - Weapon
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).
| Yak-B machine gun | |
|---|---|
 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 | 1.345 m (4 ft) |
| Width | 0.13 m (5.1 in) |
| Shell | 12.7×108mm |
| Caliber | 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) |
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
Syria
- 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. Retrieved 2018-04-22.
- "[1.0] Hind Variants / Soviet Service". Faqs.org. Retrieved 2018-04-22.
- Mladenov, Alexander (2012-07-20). Mil Mi-24 Hind Gunship. ISBN 9781846039546.
- 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.
External links
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На других языках
- [en] YakB-12.7 machine gun
[ru] ЯкБ-12,7
ЯкБ-12,7 (индекс УВ ВВС — 9-А-624, заводской индекс — ТКБ-063) — четырёхствольный авиационный пулемёт с вращающимся блоком стволов. Специально для Ми-24 в конце 1970-х годов были разработаны вертолётные гондолы ГУВ-8700 (индекс УВ ВВС 9-А-669, один четырёхствольный пулемёт ЯкБ и два четырёхствольных ГШГ).Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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