2S31 Vena Russian Amphibious 120mm Self-Propelled Mortar

tiers

true

false

categories

"WEG"

"Infantry Weapons"

"Mortars"

"Self-Propelled Mortar Systems"

"Russia (RUS)"

"PRO_Azerbaijan"

"PRO_CFE Treaty"

"PRO_Russian Federation"

"PRO_Venezuela (Bolivarian Republic of)"

"Land"

"Tier1"

notes

"The 2S31 Vena (Russian: 2С31 Вена) is a Russian amphibious self-propelled 120 mm mortar system. "2S31" is its GRAU designation. The 2S31 Vena is a self-propelled gun/mortar of Russian origin. It was developed as a more capable and more high end alternative to the wheeled 2S23 Nona. The 2S31 was to be more capable in the direct fire role, and more useful as an artillery piece. The 2S31 is based on the chassis of the BMP-3 mechanized infantry combat vehicle. The driver is located at the front, the turret in the center and the engine and drivetrain art located at the rear. The 2S31 features a high level of automation, advanced fire control system and an active protection system. The 120mm 2A80 rifled gun/mortar is the main armament. It is longer than the 120mm gun/mortars found on the tracked 2S9 and wheeled 2S23. Although rifled, it can fire 120mm shells designed for smoothbore and rifled barrels. Laser guided shells can also be fired. A total of 70 shells of 120mm ammunition are carried, about twice as many as carried by 2S9 or 2S23. The effective range is highly dependent on type of ammunition. Regular shells can be fired out to 5 or 9 km. Assisted projectiles can be fired up to 13 or 17 km, depending on type. Maximum rate of fire is quoted as 8 to 10 rpm. The tracked chassis provides the 2S31 with good off road mobility and the ability to keep up with mechanized infantry. The UTD-29 diesel engine provides up to 450 hp. The maximum speed is 70 km/h on roads. The 2S31 is amphibious and propelled in the water via water jet."

dateOfIntroduction

2010

countryOfOrigin

"Russia (RUS)"

proliferation

"Azerbaijan, CFE Treaty, Russian Federation, Venezuela (Bolivarian Republic of)"

selectedregions

"All Regions"

checkedregions

Empty array

checkedcountries

"Azerbaijan"

"CFE Treaty"

"Russian Federation"

"Venezuela (Bolivarian Republic of)"

dis

name	"COMBO 2S31 TRKD 120MM"
string	"01.01.222.004.052.000.000"

images

"2S31_Vena(A).jpg"

"2S31_Vena(B).jpg"

"2S31_Vena(C).jpg"

"2S31_Vena(D).jpg"

sections

name

"System"

properties

name	"Alternative Designation"
value	"2S31 Vena"

name	"Type"
value	"Self-Propelled Mortar System"

name	"Caliber"
value	"120"
units	"mm"

name	"Chassis"
value	"BMP-3"

name	"Crew"
value	"4 (commander, gunner, loader, driver)"

name	"Emplacement Time"
value	"INA"

name	"Displacement Time"
value	"INA"

name

"Dimensions"

properties

name	"Hull Length"
value	"7.511 m"

name	"Hull Width"
value	"3.366 m"

name	"Hull Height"
value	"3.439 m"

name	"Maximum Ground Clearance"
value	"510 mm"

name	"Minimum Ground Clearance"
value	"190 mm"

name	"Track, Ground Length"
value	"4.06 m"

name	"Track, Width"
value	"380 mm"

name	"Combat Weight"
value	"19,500 kg"

name

"Automotive"

properties

name	"Engine Name"
value	"1 x UTD-29M"

name	"Engine Type"
value	"10-cyl, 4 stroke V-shaped diesel"

name	"Engine Power"
value	"500"
units	"hp"

name	"Power-to-Weight Ratio"
value	"25.64 hp/t"

name	"Fuel Capacity"
value	"INA"

name	"Suspension"
value	"Hydropneumatic shock absorbers"

name	"Electrical System"
value	"27 V"

name	"Steering"
value	"differential with hydrostatic drive"

name	"Range"
value	"600 km"

name	"Speed, Maximum Road"
value	"70"
units	"km/h"

name	"Speed, Average Cross"
value	"INA"

name	"Speed Maximum Swim"
value	"9"
units	"km/h"

name	"Gradient"
value	"60"
units	"%"

name	"Side Slope"
value	"30"
units	"%"

name	"Vertical Step"
value	"0.80 m"

name	"Trench"
value	"2.50"
units	"m"

name	"Fording"
value	"Amphibious, 2 Waterjets"

name

"Main Weapon System"

sections

name

"System"

properties

name	"Name"
value	"1 x 2A80 Rifled Gun-Mortar"

name	"Type"
value	"Gun-Mortar System"

name	"Length, Barrel"
value	"INA"

name	"Weight"
value	"INA"

name	"Elevation"
value	"-4 deg to 80 deg (-71 mils to 1,422 mils)"

name	"Traverse"
value	"360 deg (6,400 mils)"

name	"Rate of Fire"
value	"8 to 10 round/min"

name	"Maximum Firing Range"
value	"13,000 m"

name	"Note"
value	"The 2A80 is capable of firing all natures of 120 mm mortar ammunition in service with Russian Ground Troops, and this can include HEAT projectiles that are effective at a range of 500 m and provide a valuable direct-fire capability against armoured vehicles. The standard war shot is HE, but other options include cargo ammunition, and guided projectiles."

name

"Ammunition (Option #1)"

properties

name	"Name"
value	"INA"

name	"Type"
value	"HE FRAG"

name	"Caliber"
value	"120"
units	"mm"

name	"Shell"
value	"INA"

name	"Maximum Range"
value	"13,000 m"

name	"Armor Penetration"
value	"120-mm 2A80 rifled semi-automatic gun firing mortar bombs, conventional armor-piercing and artillery rounds and Kitolov-2M laser-guided projectiles"

name	"Basic Load"
value	"70 Rounds"

name

"Ammunition (Option 2)"

properties

name	"Name"
value	"INA"

name	"Type"
value	"Mortar Bomb"

name	"Caliber"
value	"120"
units	"mm"

name	"Shell"
value	"INA"

name	"Maximum Range"
value	"7,200 m"

name	"Basic Load"
value	"70 Rounds"

name

"Auxiliary Weapon System"

sections

name

"System"

properties

name	"Name"
value	"1 x PKMT 7.62mm General-Purpose Machine Gun"

name	"Type"
value	"General-Purpose Machine Gun"

name	"Caliber"
value	"7.62"
units	"mm"

name	"Quantity"
value	"1 x PKMT General-Purpose Machine Gun"

name	"Length"
value	"1,192 mm"

name	"Barrel Length"
value	"605 mm"

name	"Weight"
value	"7.5 kg"

name	"Action"
value	"Gas-operated, open bolt"

name	"Rate of Fire"
value	"650 rounds/min"

name	"Muzzle Velocity"
value	"825 m/s"

name	"Maximum Firing Range"
value	"3,800 m"

name	"Effective Firing Range"
value	"1,000 m"

name	"Feed System"
value	"Non-disintegrating metal 50 round belts in 100 and 200/250 round ammunition boxes"

name	"Sights"
value	"Tangent iron sights (default); Optical, Night-vision, Thermal and Radar sights"

name

"Ammunition"

properties

name	"Type"
value	"Rifle"

name	"Caliber"
value	"7.62"
units	"mm"

name	"Cartridge"
value	"7.62×54mmR"

name	"Armor Penetration"
value	"INA"

name	"Basic Load"
value	"INA"

name

"Fire Control System"

properties

name	"Name"
value	"INA"

name	"Computerized FCS"
value	"Yes, "Vena" features modern fire control system."

name	"Main Gun Stabilization"
value	"No"

name	"Direct Fire"
value	"Yes"

name	"Indirect Fire"
value	"Yes"

name	"Laser Detector"
value	"Yes, A laser detector is mounted on the low part of the turret front, either side of the 120 mm 2A80 ordnance and on either side of the turret roof at the rear which is used in conjunction with the smoke grenade system."

name

"Protection"

properties

name	"Hull Armor"
value	"The hull of the 2S31 is built from aluminum (possibly the ABT-102 alloy from Nii Stali), which is then covered with bolt-on hardened steel armor. Without the steel, the aluminum protects against small arms fire and shell splinters, and the additional steel, which is concentrated on the front of the vehicle, is sufficient to stop 30 mm rounds fired at a range of 200 m."

name	"Turret Armor"
value	"The steel armor protects the crew from small arms fire and shells splinters."

name	"Applique Armor"
value	"The vehicles can be fitted with bar armour to provide statistical protection against cumulative projectiles or RPG-7 type weapons. There is an additional armour kit available that appears to add spaced modules to the sides of the hull. It is thought to extend protection to 25 mm rounds fired at the sides of the hull and include air pockets to retain the amphibious capabilities of the platform."

name	"Explosive Reactive Armor"
value	"No"

name	"Active Protection System"
value	"INA"

name	"Self-Entrenching Blade"
value	"INA"

name	"NBC Protection"
value	"Yes"

name	"Smoke Equipment"
value	"Yes"

variants

name	"1B172-2 command vehicle"
notes	"The 1B172-2 unified artillery command-observation post/command-and-staff vehicle is based on the same hull as the 2S31. It is fitted with additional communications equipment and a mast-mounted sensor package."

name	"120-mm 2S34 Khosta"
notes	"This is an upgraded 2S1 self-propelled howitzer fitted with the complete 120-mm 2A80 gun from the 2S31, which is fitted with a muzzle brake. See separate record for more information."

type

"WEG"

version

1