| 2S31 Vena | |
|---|---|
 | |
| Type | Self-propelled mortar |
| Place of origin | Russia |
| Service history | |
| In service | 2014–present |
| Production history | |
| Designer | Motovilikha Plants |
| Designed | 1980–2007 |
| Manufacturer | Motovilikha Plants |
| Produced | 1996 |
| Specifications | |
| Mass | 19.1 t (18.8 long tons; 21.1 short tons) |
| Length | 7 m (23 ft) |
| Width | 3 m (9.8 ft) |
| Height | 3 m (9.8 ft) |
| Crew | 4 |
| Elevation | -4° to +80° |
| Traverse | 360° |
| Rate of fire | 8-10 rounds per minute |
| Maximum firing range | 7.2–13 km (4.5–8.1 mi) |
Main | 2A80 120 mm mortar |
Secondary | 7.62 mm PKTM machine gun |
| Engine | Diesel UTD-29 340 kW (460 hp) |
| Power/weight | 19.4 kW (26.0 hp) per ton |
| Suspension | Individual torsion bar |
Operational | 600 km (370 mi) |
| Maximum speed | 70 km/h (43 mph) |
The 2S31 Vena (Russian: "2С31 Вена") is a Russian amphibious self-propelled 120 mm mortar system. "2S31" is its GRAU designation.
The 2S31 consists of a 120mm 2A80 rifled gun-mortar mounted on the chassis of the BMP-3 infantry combat vehicle.[1] It was developed by Joint Stock Venture "Plants of Motovilikha" (Russian: ОАО "Мотовилихинские заводы"). The 2S31's turret is equipped with digital automated fire control system, navigation system, and optical/electronic reconnaissance and target acquisition system. Its 2A80 gun-mortar is capable of launching a high-explosive mortar projectile with a maximum range of 18,000 m (20,000 yd).[1] The vehicle is protected by a welded aluminium hull to protect against small arms fire and shrapnel.[2] It can also fire armour-piercing projectiles that can penetrate up to 650 mm (26 in) of steel plate at ranges of up to 1 km (0.62 mi). A separate sighting system is used when engaging in direct fire mode.[3]
Reportedly first combat use of Vena was during Second Nagorno-Karabakh War.[4]
In September 2023 Vena appeared in Vesti program during the report about Russian troops fighting near Bakhmut, confirming its use during Russian invasion of Ukraine.[5]
