The Soviet medium tank t 34 is the most massive tank in history. The first version of the T 34 tank was created in 1939-1940. This model is exactly this version. Also, this modification was one of the most unsuccessful. Half a year before the start of the war between the USSR and Germany, the ball was created in 1941. Two variations were produced in 1942. With an old tower and a nut tower. The 1942 and 1943 versions with the nut turret had a new cannon, the F-35. And in 1944 a version with 85 mm gun D-5T was created. Several experimental tanks were also created. With 57, 100 and 122mm cannons.