T20 Medium Tank T20 Medium Tank The Medium Tank T20 was part of a series of medium tanks designed by the United States during the Second World War, to be the successor to the Medium Tank M4 "Sherman", and culminated in the M26 Pershing. Almost immediately after the M4 Sherman was standardized, the US Ordnance Department started work on a successor. The Ordnance Department had already been working on heavily armored infantry tank design for the British, using M4 parts. The new project was started on the 25 May 1942, it was originally designated M4X. Starting with the T20, the Ordnance Department initially
Tanks of the U.S. in the Cold War The T95 Medium tank was developed from 1955 to 1959. These tanks used many advanced or unusual features, such as siliceous-cored armor, the APFSDS-firing 90 mm T208 smoothbore gun in a rigid mounting without a recoil system, a new transmission, and the OPTAC fire-control system, which incorporated the "T53 Optical Tracking, Acquisition and Ranging (OPTAR)" system, emitted pulsed beams of intense but incoherent infrared light. The M26 Pershing saw service in the Korean War. When the war began in June 1950, the four American infantry divisions on occupation duty in Japan had no medium tanks, had only light tanks. These