Tanks in the Japanese Army Army in World War II. Intended to be a heavier, lengthened, more powerful version of Japan's sophisticated Type 4 Chi-To medium tank, in performance it was designed to surpass the US M4 Sherman medium tanks being fielded by the Allied forces. It was to be powered by a "Kawasaki Type 98 800 HP engine Ha-9-IIb" detuned for the tank to 550 hp. Originally, the tank was to be fitted with the same Type 5 75 mm tank gun used on the Type 4 Chi-To. Eventually, an 88 mm gun (based on the Type 99 88 mm AA Gun) was planned
Tanks of the United States of the terms light, medium, and heavy tanks changed between the wars. During World War I and immediately thereafter, the light tank was considered to be up to 10 tons, the medium (produced by the British) was roughly between 10 and 25 tons, and the heavy was over 25 tons. Later in World War II, increased weights resulted in the light tank being over 20 tons, the medium over 30, and the heavy, developed toward the end of the war, over 60 tons. Patton and Eisenhower remained involved in developing the armored arm, which found a temporary home at Camp