Comparing: Churchill I vs. KV vs. KV-1

The A22 prototype was built by Vauxhall Motors in the fall of 1940. The vehicle first entered mass production in the summer of 1941. Early modifications had no track fenders, a different fan, and a 3-inch howitzer in the hull. A total of 300 Churchill I tanks were manufactured.

Developed by the Special Design Bureau No. 2 at the Kirov Plant in Leningrad in 1939. Produced from February 1940 through September 1942, with a total production of 2,769 KV-1 vehicles and 334 KV-2 vehicles.

Development started at the end of 1938. A prototype was produced in August 1939. The vehicle first saw combat in December 1939 at the Mannerheim Line. The tank was mass-produced from March 1940 through August 1942, with a total of 2,769 vehicles manufactured.