Comparing: BT-SV vs. Type 2597 Chi-Ha 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 by Mitsubishi from 1935 through 1937. The vehicle was mass-produced from 1938 through 1942, alongside an upgraded Shinhoto Chi-Ha for the last two years, with a total of 1,220 vehicles of both types manufactured. The Chi-Ha and Shinhoto Chi-Ha tanks were widely used by Japanese forces in China, and after Japan capitulation, these vehicles were used by both the PLA and Kuomintang forces in the Civil War of 1946.

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.