These were fully tracked tanks. Designed as a reconnaissance and support vehicle for calvary units. The first prototype appeared in 1932 from the Ishikawajima Motor Works. Box like hull with sponsons overhanging track. 3 twin wheeled bogies. Hull was welded with some components riveted. The driver was on the left of the front of the hull and the 12.7 mm MG gunner on the right. Used in small numbers.

Later production vehicles had 4 larger spoked wheels in place of the 6 small boggie wheels.

		Prototype	Production
Crew	3	31	31
Physical Characteristics
Weight	3.5 tons 7,700 lb 3,500 kg	3.2 tons1	3.5 tons1
Length w/gun	12' 11.25"		12.85'1
Length w/o gun
Height	6' 1"		6.04'1
Width	5' 4"		5.33'1
Ground clearance
Ground contact length
Ground pressure
Turret ring diameter
Armament
Main	12.7 mm Model 92 MG, hull	2: 6.5 mm MG1 OR 13 mm1 and 6.5 mm MG1	13 mm1
Secondary
MG	6.5 mm MG, turret		6.5 mm MG1
Side arms
Quantity
Main
Secondary
MG
Side arms
Armor Thickness (mm)	6	61	61
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	Ishikawajima1, air-cooled1	Ishikawajima1, air-cooled1
Cylinders		61	61
Net HP		451	451
Transmission
Fuel type		Gasoline1	Gasoline1
Octane
Capacity
Performance
Traverse	360°
Max Speed	21.6 mph	25 mph1	21.6 mph1
Cross Country
Road radius	124.3 miles
Turning Radius
Elevation Limits
Fording depth
Trench crossing
Vertical Obstacle
Suspension (Type)
Wheels each side	6 Late production: 4
Return rollers each side	3
Track length
Tires
Track width
Track centers/tread
Production	1933-1940

Sources:

1. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972

 

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