Comparing: T-28E with F-30 vs. Type 1 Chi-He

The T-28 tank with the 85-mm F-30 gun was developed in 1941. One prototype was built and underwent trials. Unlike mass-produced T-28 tanks, the vehicle featured different armament. No sources were found proving that the tank was mass-produced or used in action.

The Type 1 Chi-He medium tank was a further development of the Type 97 Chi-Ha. It was developed in 1941, but due to the lack of steel, production did not start until 1943. A total of 170 tanks were manufactured. Most of them were held for the defense of Japan and never saw combat.