Comparing: Pz.Kpfw. III Ausf. A vs. BT-7 artillery

Produced in 1937, with a total of 10 vehicles manufactured. The project was canceled due to its weak suspension and inadequate armor.

In 1934–1935 the design bureau of the Kharkiv Locomotive Factory developed this artillery modification of the BT-7. The new elliptical turret was equipped with the 76.2-mm CT-28 gun. In addition, some vehicles received new radio stations. A total of 155 artillery BT-7s were manufactured. The vehicles saw combat on the Karelian Isthmus, in Manchuria, and during the first period of the Great Patriotic War.