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115mm U-5TS


2A20


Overview


T-62

A T-62 showing its long smoothbore 115mm cannon and gaps between the two last roadwheels.
Source: www.fas.org - © copyright lies with original owner

Origin
Soviet Union
Type
Cannon
Entered service
1962
Status
In service
Development
1958
Developer
Soviet Union - F.F. Petrov design bureau
Production
1959 - 1983
Producer
Soviet Union - No.9 plant
Soviet Union - No.173 Motovilikha plant
Soviet Union - Barrikady plant
Number produced
Well over 20.000
Designations
2A20 (GRAU index)
Molot (nickname)
Russian for "hammer"

Details


Facts U-5TS
General
Origin
Soviet Union
Type
Smoothbore cannon
Barrel
Caliber
115mm L/49.5
Ammunition
115mm Soviet
Barrel length
5.7 m
Barrel type
Smoothbore
Fume extractor
Yes
Maximum pressure
366 MPa
Dimensions
Weight
2.35 t gun and breech
Length
6.05 m including breech
Loading
Breechblock
Horizontal sliding breechblock
Loading mechanism
Manual loading
Recoil travel
350 - 415 mm
Performance
Rate of fire
4 - 5 rpm in practice
Up to 8 rpm theoretical
Range
Over 2 km with APFSDS
1.2 km with HEAT
6 km with HE
Muzzle velocity
1.650 m/s with BM-3 APFSDS
1.680 m/s with BM-5 APFSDS
900 m/s with BK-4 HEAT
905 m/s with OF-11 HE

Related articles


T-62

The 115mm U-5TS was introduced on the T-62 main battle tank in 1961. Therefore the U-5TS is the world's first smoothbore tank gun in service.

T-62M

The U-5TS also equips the T-62M series of upgraded T-62 tanks. Most upgrades include the ability to launch 9M117 anti-tank guided missiles from the gun barrel using the 9K116-2 Sheksna system.