The KV sort tank that research to produce victories in the competition of this hefty type tank from factory of Kirov in 1939, ising called after KV-1.KV-1 the beginning batch volume produces in 1942 February, in the beginning of the manufacturing model volume calls the KV-1 model 1941 " small Turret", first item in KV-1 sorts L-11s 76.2 mm of artillery; July of 1940, the hefty enter the band of KV tank manufacturing be transfered by the factory of Kirov the 100 factory production, henceforth the KV-1 that produce all changed to pack better types F-32s in function 76.2 mm of artillery.
