T64

T-64 is primarily known as a Soviet and Russian main battle tank family. It was developed by Uralvagonzavod and entered service in the late 1960s as part of efforts to modernize armored forces in the Warsaw Pact. The T-64 was one of the first production tanks to deploy an autoloading mechanism for its main gun, a 125 mm smoothbore, which allowed a smaller crew and higher ammunition density.

Several variants followed, including the T-64A, which featured improved armor and fire-control equipment, and the T-64B and T-64BV, which added further protection upgrades and reactive armor additions. The design emphasized elevated armor protection and mobility for its weight class, with a compact hull and a powerful engine.

Operational history: It served in the Soviet Army and later in several post-Soviet states. The T-64 family has remained in service with various operators into the late 20th and 21st centuries, often in second-hand or modernized forms, and several export orders were fulfilled.

Other uses of the designation T64 include a General Electric turboshaft aircraft engine used in helicopters, developed in the mid-20th century.