U-5TS

U-5TS
U-5TS tank gun on display at the Motovilikha Plant Museum in Perm. Russia.
Type	Smoothbore tank gun
Place of origin	Russia
Service history
In service	1961–present
Wars	Sino-Soviet border conflict Yom Kippur War Ogaden War Soviet–Afghan War Lebanese Civil War 1982 Lebanon War Chadian–Libyan War Polisario War Angolan Civil War Ethiopian Civil War Iran–Iraq War Eritrean–Ethiopian War Gulf War First Chechen War Second Chechen War Operation Iraqi Freedom Russo-Georgian War 2011 Libyan civil war Syrian civil war Afghan conflict Russo-Ukrainian War
Production history
Designed	Late 1950s
Specifications
Barrel length	6.05 m L/52.6
Crew	3
Shell	115×728mmR
Caliber	115 millimetres (4.53 in)
Rate of fire	6–10/minute
Muzzle velocity	1,600 m/s (APFSDS)
Effective firing range	2,000 m-high target – 1,870 m; 3 m-high target – 2,260 m;[1] 4,000 m AT-12 missile.

The U-5TS (production designation 2A20) tank gun is a 115 mm-calibre weapon that was fitted almost^[a] exclusively to the Soviet Union's T-62 main battle tank. It was the first smoothbore weapon designed for tanks,^[2] and heralded the change in main armament from rifled cannons.

Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).