The 100 mm gun-launcher 2A70 (GRAU designation: 2А70) 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.
| 100 mm gun 2A70 | |
|---|---|
 2A70 at the Motovilikha Plants museum | |
| Type | Gun-launcher |
| Place of origin |  Soviet Union |
| Service history | |
| In service | 1990–present |
| Used by | See Operators |
| Production history | |
| Designer | KBP Instrument Design Bureau |
| Designed | 1980s |
| Manufacturer | Motovilikha Plants[1] |
| Produced | mid 1980s–present |
| No. built | 2000+ |
| Specifications | |
| Mass | 311.6 kilograms (687 lb) |
| Length | 3,943 millimetres (155.2 in) |
| Barrel length | > 3 m |
| Width | 281 millimetres (11.1 in) |
| Height | 404 millimetres (15.9 in) |
| Caliber | 100 millimetres (3.9 in) |
| Barrels | 1, rifled, no bore evacuator or muzzle device |
| Rate of fire | 8–10 rounds per minute |
| Muzzle velocity | See table
|
| Effective firing range | 3OF32: 300 m (980 ft)–4,000 m (13,000 ft) |
| Maximum firing range | 3OF70: 6,500 m (21,300 ft)[1] |
| Feed system | autoloader (shell); manual (shell and missile)[1] |
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]
History
editBy 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]
Ammunition
edit| 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]
Operators
editSee also
editReferences
edit- ^ a b c "100mm 2A70". weaponsystems.net. Retrieved 2023-05-01.
- ^ "大国善谋，武器维护保养换过时产品，26年后中国却玩出先进步战车". Toutiao (in Chinese). 25 August 2022.
- ^ "The VN20 Is The Largest Combat Vehicle In Asia | 21st Century Asian Arms Race". 2023-02-11. Archived from the original on 2023-02-11. Retrieved 2023-02-18.
- ^ Боекомплект Бмп-З
- ^ 2А70.00.000ТО. 100-мм орудие-пусковая установка. Техническое описание и инструкция по эксплуатации, стр.8
- ^ "ОАО «Конструкторское бюро приборостроения» - 3УОФ19, 3УОФ19-1". Archived from the original on 2015-05-22. Retrieved 2015-03-05.
- ^ "Выстрелы 3УБК10, 3УБК10-1, 3УБК10-2, 3УБК10-3 с унифицированной противотанковой управляемой ракетой 9М117". ПО «Туламашзавод». Archived from the original on 2012-05-28. Retrieved 2013-02-17.
- ^ "Модернизированные выстрелы 3УБК10М, 3УБК10М-1, 3УБК10М-2, 3УБК10М-3 с унифицированной противотанковой управляемой ракетой 9М117М". ПО «Туламашзавод». Archived from the original on 2012-05-28. Retrieved 2013-02-17.
- ^ "СЕМЕЙСТВО ПТУР «АРКАН»". Archived from the original on 2013-04-04. Retrieved 2013-02-17.
- ^ "2А70, пусковая установка". Информационное агентство «Оружие России». Archived from the original on 2013-06-16. Retrieved 2013-05-25.
- ^ "CAT-UXO - 100mm OF-32 projectile". cat-uxo.com.