Comparing: A-20 vs. T-50

Development of the A-20 tank started at Kharkiv Factory No. 183 in December 1937. The project was a further development of the BT-7 tank and became a predecessor of the legendary T-34. Work on the vehicle was led by Mikhail Koshkin. On May 18, 1938, technical characteristics of the tank designated BT-20 were approved. Only a few experimental prototypes, with a wheeled caterpillar suspension, were built for training purposes.

Developed in October 1940. The design presented by Plant 174 was submitted for consideration. After successful trials in February and March 1941 the vehicle entered service.