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
TypeGun-launcher
Place of origin Soviet Union
Service history
In service1990–present
Used bySee Operators
Production history
DesignerKBP Instrument Design Bureau
Designed1980s
ManufacturerMotovilikha Plants[1]
Producedmid 1980s–present
No. built2000+
Specifications
Mass311.6 kilograms (687 lb)
Length3,943 millimetres (155.2 in)
Barrel length> 3 m
Width281 millimetres (11.1 in)
Height404 millimetres (15.9 in)

Caliber100 millimetres (3.9 in)
Barrels1, rifled, no bore evacuator or muzzle device
Rate of fire8–10 rounds per minute
Muzzle velocitySee table
  • 3OF32: 250 m/s (820 ft/s)
  • 3OF70: 355 m/s (1,160 ft/s)
Effective firing range3OF32: 300 m (980 ft)–4,000 m (13,000 ft)
Maximum firing range3OF70: 6,500 m (21,300 ft)[1]
Feed systemautoloader (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

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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]

Ammunition

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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]

Operators

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See the articles for BMP-3, BMD-4, and ZBD-04.

See also

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References

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  1. ^ a b c "100mm 2A70". weaponsystems.net. Retrieved 2023-05-01.
  2. ^ "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.
  3. ^ "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.
  4. ^ Боекомплект Бмп-З
  5. ^ 2А70.00.000ТО. 100-мм орудие-пусковая установка. Техническое описание и инструкция по эксплуатации, стр.8
  6. ^ "ОАО «Конструкторское бюро приборостроения» - 3УОФ19, 3УОФ19-1". Archived from the original on 2015-05-22. Retrieved 2015-03-05.
  7. ^ "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.
  8. ^ "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.
  9. ^ "СЕМЕЙСТВО ПТУР «АРКАН»". Archived from the original on 2013-04-04. Retrieved 2013-02-17.
  10. ^ "2А70, пусковая установка". Информационное агентство «Оружие России». Archived from the original on 2013-06-16. Retrieved 2013-05-25.
  11. ^ "CAT-UXO - 100mm OF-32 projectile". cat-uxo.com.