Comparing: BT-7 artillery vs. BT-SV

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.

Experimental tank. Developed by the Tsyganov group from 1936 through 1938. The vehicle underwent field trials, but never saw service.