Comparing: BT-SV vs. T-127 vs. Type 98 Ke-Ni

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

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.

A further modification of the Ha-Go developed by Hino Jidosha Kogyo. Despite the improved dynamic characteristics, the tank did not replace the Ha-Go. About 100 tanks were manufactured by Mitsubishi and Hino.