Type 5 To Ku

The Special Type 5 Launch To-Ku (特五式内火艇 トク, toku-go-shiki uchibitei To-Ku) was a Japanese amphibious tank built in 1945.

The To-Ku was large and heavy; it boasted extensive armor protection with 50 mm of armor plate in the front hull. The turret was a modified version of the one used on the Type 97 Shinhoto Chi-Ha medium tank and fitted with a Type 1 25 mm gun and a rear facing Type 97 7.7 mm machine gun. The front hull mounted a Type 1 47 mm tank gun and a Type 97 7.7 mm machine gun. The chassis was based on the Type 5 Chi-Ri medium tank and the suspension, pontoons and propulsion system were substantially the same as the Type 3 Ka-Chi. Only one prototype was built of this amphibious tank.