Type 3 Ka-Chi
The "special amphibious tank Type 3 Ka-Chi" (特三式内火艇 カチ, Toku-san-shiki naikatei Ka-Chi) was an amphibious medium tank developed by the Imperial Japanese Navy in World War II. The Type 3 Ka-Chi was based on an extensively modified Imperial Japanese Army Type 1 Chi-He medium tank (it had 2 more road-wheels and two more return rollers on each side) and was a larger and more capable version of the earlier Type 2 Ka-Mi amphibious tank. == History and development == The success of the Type 2 Ka-Mi design pleased the planners in the Imperial Japanese Navy General Staff, and it was determined that a larger version with stronger armor and armament would be useful in future amphibious warfare operations.