Type 5 To-Ku

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Type 5 To-Ku
Place of origin Empire of Japan
Production history
Designed 1945
Weight 29.1 tons[1]
Length 10.8 m (with floats)[1]
Width 3.0 m[1]
Height 3.38 m[1]
Crew 7[1]

Armor 10–50 mm[1]
Type 1 47 mm gun[1]
1× 25 mm gun[1]
2× 7.7 mm Type 97 MG's[1]
Engine water-cooled 12-cylinder Mitsubishi diesel
240 hp[1]
Power/weight 8 hp/ton
Suspension bell crank
320 km (unknown if referring to sea or land)[1]
Speed 32 km/h (land)
10 km/h (water)[1]

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.[2]

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.[3] The front hull mounted a Type 1 47 mm tank gun and a Type 97 7.7 mm machine gun.[4] 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.[3] Only one prototype was built of this amphibious tank.[2]


  1. ^ a b c d e f g h i j k l Tomczyk 2003, p. 33.
  2. ^ a b Tomczyk 2003, p. 32.
  3. ^ a b Tomczyk 2003, pp. 32, 43.
  4. ^ Tomczyk 2003, pp. 32, 33.