№ 02

Armoured Fighting Vehicles

AFV · 02 · 031
AFV · 02 · 031 Self-propelled Gun / Howitzer · Tracked, mechanised (on BMP-3) Russia · RUS

2S31“Vena”

120 mm self-propelled artillery gun on BMP-3 chassis
2S31 Vena · TsNII “Burevestnik”
Fig. 02·031 — side view · photo silhouette
0 — 5 м
2S31 “Vena”: 120 mm 2A80 on the BMP-3 chassis with the “Kapustnik-B” FCS.
Status
In service · since 2024
Выпущено
≈ 50 units
Производитель
TsNII “Burevestnik” (N.Novgorod) · Motovilikha Plants

Role

A tracked self-propelled artillery system for direct fire support of motorised rifle units, built on the BMP-3 chassis. It is the final link in the Soviet/Russian “Nona” family (2S9 “Nona-S” on the BTR-D → 2S23 “Nona-SVK” on the wheeled BTR-80 → 2S31 “Vena” on the tracked BMP-3), preserving the common philosophy of a universal 120 mm rifled gun-mortar. Vena differs from its predecessors with a longer 2A80 barrel of 30 calibres (versus 24 in the 2A60), pushing HE range to 13 km, and the integrated “Kapustnik-B” fire-control suite: digital ballistic computer, commander’s thermal sight, satellite navigation, support for the “Kitolov-2” guided round. The vehicle is amphibious — it crosses water obstacles with two waterjets inherited from the BMP-3. Adopted in 2010; built in a small series of about 40 units.

Specifications

  • Combat mass 19,5 t
  • Length (gun forward) 7,20 m
  • Hull length 7,14 m
  • Width 3,15 m
  • Height 2,94 m
  • Ground clearance 0,45 m
  • Crew 4 pers.
  • Chassis BMP-3
  • Engine UTD-29 · 500 hp diesel
  • Power-to-weight 25,6 hp/t
  • Max speed (road) 70 km/h
  • Max speed (afloat) 10 km/h
  • Waterborne propulsion waterjets
  • Operational range 600 km
  • Main gun 120 mm 2A80 (rifled gun-mortar, L/30)
  • Loading type breech
  • Elevation −4 … +80 °
  • Traverse 360 °
  • Range, HE shell до 13 km
  • Range, rocket-assisted до 14,5 km
  • Mortar range 0,5 — 7,2 km
  • Ammunition load 70 rds
  • Rate of fire 8—10 rds/min
  • Fire-control system “Kapustnik-B”
  • Armour small-arms protection (BMP-3 level)

Модификации

2С31 «Вена» (serial, since 2010) 2С9 «Нона-С» (base airborne variant, on BTR-D, 1981) 2С23 «Нона-СВК» (wheeled, on BTR-80, 1990)
Family 2S9-1M lineage: 4
  1. AFV · 02 · 009 2S9-1M “Nona-SM” САУ · RUS
  2. AFV · 02 · 023 2S23 “Nona-SVK” САУ · RUS
  3. AFV · 02 · 031 2S31 “Vena” ← you are here САУ · RUS
  4. AFV · 02 · 034 2S34 “Khosta” САУ · RUS

Operators

RUS (Russian Ground Forces) AZE (≈18 units, export)