Type 3 Ka-Chi The Type 3 ka-chi (特三式内火艇 カチ) was an amphibious Japanese medium tank that was used extensively on the Japanese home islands, however, it never actually saw tank on tank combat. This tank had the unique ability to be launched from a submarine, making it quite a useful tool to support Japanese troops on a blockaded island, had the need arisen. Only an estimated 120-300 were made Us Battleships, Imperial Japanese Navy, Landing Craft, Wwii Photos, Ww2 Tanks, Military Pictures, Army & Navy, Armada, Submarines