Type 75 SP Howitzer

The Type 75 155 mm self-propelled howitzer is an armored artillery vehicle in the exclusive use of the Japan Ground Self-Defense Force. Self-propelled howitzers are employed to provide mobile heavy fire support to army units in the field.

The Type 75 shares a number of automotive components with the Type 74 tank which was developed during the same time. Mitsubishi Heavy Industries developed the chassis, while the howitzer and turret were designed by Japan Steel Works. Two prototypes were completed in 1971–72 and differed only in their loading systems. Trials were conducted 1973–74 and the howitzer was accepted for service in October 1975. It carries 28 rounds of ammunition on board.

As of 2001 Japan reported to the United Nations Office for Disarmament Affairs that 201 Type 75s were in service. It is being gradually replaced by the Type 99 155 mm Self-propelled howitzer. As of December 2008 it still equips the 5th, 11th, 171st and 172nd Field Artillery Battalions.

Type 75 SP Howitzer
Class Vehicle
Type Self-Propelled artillery
Manufacturer Mitsubishi Heavy Industries
Production Period 1975 - 1988
Origin Japan
Country Name Origin Year
Japan 1975
Country Name Operational Year Retirement Year
Japan 1975 1988 View
ManufacturerName Production From Production To Quantity
Mitsubishi Heavy Industries 1975 1988 201 View
DesignationsType 75 155mm Self-Propelled Howitzer
Manufacturer(s)Mitsubishi and Japan Steel
StatusProduction completed. In service with Japan.
Production Period1975-1988Production Quantity201
Length, overall7.8mLength, hull6.6m
Width, overall3.1mHeight, overall2.5+ m
Combat Weight25300kgUnloaded Weightn/a
Radio, externaln/aCommunication, crewn/a
Main Armament155mm L30 howitzerAmmunition Carried28x155mm
Gun Traverse360Elevation/Depression+65/-5
Traverse Rate12/sElevation Raten/a
Gun Stabilizationn/aRangefindern/a
Night VisionyesAuto-Loaderno
Secondary Armament12.7 mm M2 MG (AA)Ammunition Carried1000x12.7mm

EngineMitsubishi 6ZF 2-cycles 6-cylinder air-cooled dieselTransmissionmanual (4 forward, 1 reverse)
Horsepower450hp at 2000rpmSuspensiontorsion bar
Power/Weight Ratio17.8hp/tTrack Width50.0cm
Speed, on road47km/hTrack Ground Contact520cm
Fuel Capacity650 lGround Pressure0.64kg/cm2
Range, on road300kmGradient60%
Fuel Consumption2.1 litres/kmVertical Obstacle0.7m
Turning Radiusn/aTrench Crossing2.5m
Ground Clearance0.4mFording1.3m
Smoke LayingnoneNBC Protectionyes
Armor DetailsAll-welded aluminium.

End notes