Comparing: T1E6 vs. BT-2 vs. T-26

Experimental vehicles T1E4 through T1E6 were heavily influenced by the British Vickers E. The first prototype was manufactured by the Cunningham corporation in 1931. After trials in 1932, an upgraded variant was built. However, a different experimental tank, the T2, was preferred.

Developed on the basis of the Christie tank M1931. Produced at the Kharkiv Komintern Locomotive Factory (KhPZ), with 650 BT-2 tanks and 1,884 BT-5 tanks manufactured from 1932 through 1935.

Produced in greater numbers than any other tank of the Red Army during the pre-war period, with 11,218 vehicles in four main modifications built from 1931 through 1941.