IJN Type 2 (Ka-Mi) Amphibious Tank w/Floating Pontoons, Late ProductionB The “Ka-Mi” was the first amphibious tank used by the Imperial Japanese Navy (IJN). It was designed for Japanese landing forces performing amphibious invasions of Pacific islands that didn’t have regular port facilities. Production commenced in 1942 and a total of 184 Type 2 tanks were built. When used in water, two large pontoons were attached to the glacis plate and rear deck to give it a top waterborne speed of 10km/h. These pontoons could be shed as soon as it reached land.