Hc-5

A proposed Japanese light tank design, never produced, with a planned 57mm gun and improved armor. It was intended to address issues of the Hc-4 design.

Gv. 39 (Type 39)

A Japanese World War II medium tank, designed for offensive operations. It was equipped with a 57mm gun and had a thicker armor compared to earlier models.

Gv. 3 (Type 3)

A Japanese medium tank produced during World War II, known for its powerful 57mm gun and sloped armor. It was widely used in various theaters of war, including the Pacific and Southeast Asia, but faced challenges against heavier Allied tanks.

Gv. 5 (Type 5)

A Japanese light tank prototype developed during World War II, designed to be a more modern and powerful replacement for the Type 97 Chi-Ha. It featured a 57mm gun and sloped armor but was never mass-produced due to wartime production difficulties.

Gv. 40 (Type 40)

A Japanese medium tank developed during World War II, featuring a 57mm gun and sloped armor. It was intended to replace the older Type 97 Chi-Ha but was produced in limited numbers due to wartime production difficulties.