Comparing: Bat.-Châtillon 25 t AP vs. Type 61

In 1950–1951, engineers of the FAMH company (Compagnie des forges et aciéries de la marine et d'Homécourt) worked on the development of a medium tank with a 90-mm gun and a 25-ton rotating turret. Work was discontinued at the preliminary design stage. Later, all elements of the vehicle were incorporated in the Batignolles-Châtillon 25 t tank.

The first tank developed in Japan after WWII. It was developed from 1954 through 1961 on the basis of the American M47 tank. The dimensions of the vehicle were decreased and the armor was reduced. As a result, the weight of the tank was lighter, and the tank complied with the requirements of the Japanese armed forces.