2A42 30mm cannon
| 2A42 | |
|---|---|
 |
|
| general information | |
| Military designation: | 2A42 ( GRAY index ) |
| Country of operation: | Soviet Union, Russia |
| Developer / Manufacturer: |
KBP Tula , Tulamaschsawod in Tula |
| Manufacturer country: | Russia |
| Production time: | since 1982 |
| Weapon Category: | Automatic cannon |
| Furnishing | |
| Overall length: | 3027 mm |
| Weight: (unloaded) | 115 kg |
| Technical specifications | |
| Caliber : | 30 × 165 mm |
| Ammunition supply : | Cartridge belts |
| Cadence : | 200-300 or 550-800 rounds / min |
| Fire types: | Continuous fire |
| Number of trains : | 16 with 715.5 mm twist length |
| Charging principle: | Gas pressure charger |
| Lists on the subject | |
The 30 mm gun 2A42 is a Soviet automatic cannon caliber mm 30 × 165 . It was developed by the designers Grjasew and Schipunow around 1980 in the design office for device construction (KBP) in Tula . 2A42 is the GRAY index of the weapon used in the Soviet and now Russian armed forces.
technology
In the 1970s, the order was given to create an on-board weapon for aircraft and armored vehicles, which was to be used in particular to combat armored ground targets. The automatic cannons used so far were designed for use in aircraft and primarily intended against air targets. They therefore had a very high rate of fire, which was not desirable for use in combat helicopters or armored personnel carriers. The rate of fire of the 2A42 can be set to a slow or a fast mode, even single fire is possible. The weapon has a double belt feed for different types of ammunition, so that armor-piercing or explosive projectiles can be used. The recoil is dampened by a flat muzzle brake , which diverts the powder gases laterally and parallel to the ship's side. The tube recoil of about 30 mm further weakens the recoil. On Kamow models, the weapon is not attached under the fuselage, but to the right of it, in order to enable the lowest possible flight altitude.
commitment
in armored vehicles:
in combat helicopters:
variants
A version of the 2A42 continued to be built in Ukraine after the dissolution of the USSR is called the STM-2.
The 2A72 was derived from the 2A42, which has a sliding back barrel, which reduces the recoil of the weapon, so that it can also be used on lighter weapon platforms that would not be able to withstand the recoil of the 2A42. The version made in Ukraine is called STM-1.
ammunition
| designation | Ammunition type (NATO classification) | Bullet mass (g) | Explosives mass (g) | Muzzle velocity (m / s) | comment |
|---|---|---|---|---|---|
| 3UOF8 | Explosive incendiary bullet (HEI-FRAG) | 389 | 48.5 g | 960 | Detonator A-670M. |
| 3UOR6 | Explosive tracer (HEI-T) | 385 | 11 g | 960 | Detonator A-670M |
| 3UBR6 | Tank tracer (APC-T) | 400 | - | 970 | 18 mm RHA / 60 ° at a distance of 1500 m |
| 3UBR8 | Armor-piercing tungsten projectile with sabot (APDS) | 304 | - | 1120 | Sub-caliber bullet with a plastic sabot. Penetration capacity: 25 mm RHA at a distance of 1500 m |
| M929 | Tungsten Sub-Caliber Tracer Arrow Bullet (APFSDS-T) | ? | none | ? | Belgian manufacturer; Penetration capacity: 55 mm RHA at a distance of 1000 m, 45 mm at 2000 m. |
| 30 JOCvSv | Practice ammunition (HETP-T) | 386 | 960 | Czech practice ammunition with self-destructing fuse A-390. | |
| UP | Practice ammunition (TP) | 386 | 960 | Inert practice ammunition |
Individual evidence
- ↑ a b c d e f g h i j k l m n o 30x165 30mm 2A42 AAA and GSh-30 aircraft cannon. In: From 25mm to 30mm - The Russian Ammunition Page. www.russianammo.org, accessed on October 9, 2018 (English).
- ↑ a b c BMP-2 Fighting Vehicle. fas.org, accessed October 9, 2018 .
- ↑ 30mm AMMUNITION 30mm APFSDS-T M929. (PDF, 79 kB) Mecar, accessed on October 9, 2018 (English).
