same 47 mm gun used on the army's Type 97 Shinhoto Chi-Ha. Secondary armament was a coaxial Type 97 heavy tank machine gun and a hull mounted weapon of the same type. The gun turret was designed with an extended circular cupola to keep the hatch above water. The vehicle required a crew of seven, one of whom (as with the Type 2 Ka-Mi) served as an on-board mechanic. Service record The Type 3 Ka-Chi was produced in very limited numbers, but proved useful due to its capability to be launched from a submarine, which enabled it to accommodate the increasingly difficult task of daytime reinforcement for isolated island garrisons located in the South Pacific and in Southeast Asia. The Type 3 Ka-Chi was deployed only in the Japan homeland and did not see combat. See also DD tank - World War II British tank flotation system. T-38 - World War II, Soviet amphibious light tank. Notes References External links Taki's Imperial Japanese Army Page - Akira Takizawa 3 Ka-Chi Medium tanks of Japan Amphibious tanks Mitsubishi Military vehicles introduced from 1940 to 1944