Comparing: BT-7 vs. T-127 vs. T-70

The Soviet wheeled caterpillar tank used in the 1930s–1940s. The third vehicle in the series of the Soviet light BT tanks. The BT-7 differed from its predecessors in the welded hull of a modified shape and a new engine. A total of 5,556 vehicles of different variants were produced and saw action during the Khalkhyn Gol battles, Polish Campaign, Winter War and World War II.

Developed together with the T-126 at Factory No. 174 during the summer of 1940. Vehicle development was suspended during the preliminary design phase and then discontinued due to problems with the V-3 diesel engine.

Developed in October and November 1941 at the Construction Bureau of the Gorky Automobile Plant under the supervision of N. A. Astrov. The vehicle came into service in January 1942, and it was mass-produced until October 1943, with a total of 8231 vehicles manufactured. Some vehicles were used until the end of the war.