Comparing: Bat.-Châtillon 25 t AP vs. E 50

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.

In 1945 the E 50 was conceived as a standard medium tank of the Panzerwaffe to replace the Panther and Panther II. It existed only in blueprints.