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Japan's Imperial Navy flag

Japan's Type 3 Ka-Chi amphibious tank

Design

Had circular escape hatch on top of the turret which was extended to keep it above the waves. There was a tower above the rear deck to keep the exhaust clear of water.

It had smooth sides with pontoons attached to the front and rear, which were detached once it reached shore.

Construction

The Ka-Chi was all welded construction.

Propulsion

There were two propellers that propelled the Ka-Chi through the water. The tank commander steered by using twin rudders that were controlled from the turret.

Variants

Usage

Encountered at Kwajalein.

Specifications

  Type 3 Amphibious Tank
Crew 7, 5-7
Physical Characteristics  
Weight 28,700 kg
28.25 tons, 28.3 tons
With pontoons: 28.8 tons
Length 33' 9", 33' 9.5"
10.3 m
Height 12' 6", 12' 6.5"
3.82 m
Width

9' 9" , 9' 9.5", 9.8', 9' 10"
3 m

Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 1: 47 mm
Secondary  
MG  
MG - coaxial 1: 7.7 mm MG
MG - bow 1: 7.7 mm MG
Side arms  
Quantity  
Main  
Secondary  
MG  
Side arms  
Armor Thickness (mm) 50
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) Mitsubishi Type 100
Type 100
Cylinders 12, V-12
Net HP 240
Cooling Air
Transmission  
Fuel type Diesel
Octane  
Capacity  
Performance  
Traverse 360°
Speed - Land

19.9 mph, 20 mph
32 kph

Speed - Water 6 mph, 6.5 mph
10 kph
Range - Road 198 miles, 198.2 miles
319 km
Turning Radius  
Elevation Limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Suspension (Type) Bell Cranks
Wheels each side 8 in sets of 2
Return rollers each side 4
Track length  
Tires  
Track width  
Track centers/tread  

Sources:

  1. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
  2. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  3. World War I and II Tanks, George Forty, 2012
20th Century American Military History Crucial Site