Comparing: Object 416 vs. STA-1

The development of the Object 416 started at the Construction Bureau of Factory No. 75 in the fall of 1949. The blueprint was developed by March 1950. Due to technical problems with the turret, a working prototype was not ready until April 1952. Improvements were made, and another prototype was built in the summer of 1953, but the vehicle never entered mass production.

The first Japanese post-war tank was developed on the basis of U.S. vehicles. The STA-1 was developed, taking into consideration Japanese terrain, rail network specifications, and anthropometric data of Japanese tankers. Only one prototype was built, in December 1956.