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Type 99

155-mm self-propelled howitzer

Type 99 SPH

The Type 99 self-propelled howitzer is in service with the JGSDF

Entered service 1999
Crew 4 men
Dimensions and weight
Weight 40 t
Length (gun forward) 11.3 m
Hull length ?
Width 3.2 m
Height 4.3 m
Main gun 155-mm
Barrel length 39 calibers
Machine guns 1 x 12.7-mm
Projectile weight ?
Maximum firing range 30 ~ 38 km
Maximum rate of fire ~ 6 rpm
Elevation range ?
Traverse range 360 degrees
Ammunition load
Main gun ?
Machine guns ?
Engine diesel
Engine power 600 hp
Maximum road speed 50 km/h
Range ~ 500 km
Gradient 60%
Side slope 30%
Vertical step ~ 0.9 m
Trench ~ 2 m
Fording ~ 1.2 m


   The Type 99 self-propelled howitzer was developed as a replacement to the Type 75 SPH. It was developed by the Mitsubishi Heavy Industries and the Japan Steel Works. A small number of Type 99 self-propelled howitzers is currently in service with the Japanese Ground Self-Defense Force. It has not been offered for export customers, as Japan's laws do not allow exporting military equipment.

   The Type 99 self-propelled howitzer is fitted with 155-mm howitzer, which is believed to be 39 calibers long. Maximum range of fire is 30 km with standard HE-FRAG projectile and approximately 38 km with rocket assisted. Maximum rate of fire is speculated to be 6 rounds per minute.

   Secondary armament of the Type 99 consists of a roof-mounted 12.7-mm machine gun, fitted with a shield.

   Armor of the Type 99 provides protection against small arms fire and artillery shell splinters.

   Vehicle is powered by a diesel engine, developing 600 horsepower. A traveling lock is provided at the front of the hull. It folds back onto the glacis plate when not in use.

   The Type 99 self-propelled howitzer is resupplied from the Type 99 ammunition resupply vehicle. A battery of the Type 99 howitzers also includes a mobile command post and fire control radar.


Video of the Type 99 155-mm self-propelled howitzer

Type 99 SPH

Type 99 SPH

Type 99 SPH

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