| 100 mm gun 2A70 | |
| Type: | Gun-launcher |
| Is Ranged: | yes |
| Is Artillery: | yes |
| Service: | 1990 - present |
| Used By: | See Operators |
| Designer: | KBP Instrument Design Bureau |
| Design Date: | 1980s |
| Manufacturer: | Motovilikha Plants |
| Production Date: | mid 1980s - present |
| Number: | 2000+ |
| Weight: | 311.6kg (687lb) |
| Length: | 3943mm |
| Part Length: | > 3 m |
| Width: | 281mm |
| Height: | 404mm |
| Caliber: | 100mm |
| Barrels: | 1, rifled, no bore evacuator or muzzle device |
| Rate: | 8 - 10 rounds per minute |
| Velocity: | See table
|
| Range: | 3OF32: 300m (1,000feet) - 4000m (13,000feet) |
| Max Range: | 3OF70: 6500m (21,300feet) |
| Feed: | autoloader (shell); manual (shell and missile)[1] |
The 100 mm gun-launcher 2A70 (GRAU designation:) is a model of low-pressure rifled cannons designed in the Soviet Union by the KBP Instrument Design Bureau. Integrated into Bakhcha-U and Sinitsa turret modules, the gun equips the BMD-4, BMP-3, and BTR-90M infantry fighting vehicles. It is capable of launching the high-explosive fragmentation (HE-FRAG) 3OF32 and 3OF70 projectiles, as well as the 9M117 Bastion gun-launched anti-tank guided missiles (ATGM) and related systems.
China produces a similar gun used on the ZBD-04 IFV, using technologies licensed from Russia in 1996.[2] The VN20 has a version with a 100-mm gun.[3]
By no later than 2006, the then-standard projectile 3OF32 was found to be underpowered. Being modified from the WW2 52-OF-412 projectile of the 100 mm field gun M1944 (BS-3), it was designed to withstand a higher ballistic-performance gun and thus has too thick walls and insufficient explosive filling.[4]
| + Table of ammunition[5] [6] [7] [8] [9] [10] | |||||||
| Cartridge | Projectile | Muzzle velocity (m/s) | Mass (kg) | Range (km) | Area of destruction (m2) | Penetration (mm RHA) | |
|---|---|---|---|---|---|---|---|
| HE-FRAG | |||||||
| 3UOF17 | 3OF32 | 250 | 18.2 | 0.3 - 4.0 | 160 | ||
| 3UOF19 | 3OF70 | 355 | 15.8 | 0.3 - 6.5 | 360 | ||
| 3UOF19-1 | 3OF70 | 355 | 15.8 | 0.3 - 6.5 | 600 | ||
| ATGM | |||||||
| 3UBK10-3 | 9M117 Bastion | 22 | 0.1 - 4.0 | 550 post-ERA | |||
| 3UBK10М-3 | 9M117M Kan | 22.9 | 0.1 - 4.0 | ~600 post-ERA | |||
| 3UBK23-3 | 9M117M1 Arkan | 21.5 | 0.1—5.5 | ~750 post-ERA | |||
The 3OF32 has a point-detonating (impact) fuse.[11]
See the articles for BMP-3, BMD-4, and ZBD-04.