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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

 
 
Country of origin Japan
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
Armament
Main gun 155 mm
Barrel length 52 calibers
Machine guns 1 x 12.7 mm
Projectile weight ~ 43.5 kg
Maximum firing range 30 ~ 38 km
Maximum rate of fire ~ 6 rpm
Elevation range ?
Traverse range 360 degrees
Ammunition load
Main gun ?
Machine guns ?
Mobility
Engine Mitsubishi diesel
Engine power 600 hp
Maximum road speed 50 km/h
Range ~ 500 km
Maneuverability
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 at the time of its introduction Japan's laws did not allowed exporting military equipment.

   This artillery system has a heavily-modified Type 89 IFV hull, topped with an original turret, and is armed with a longer 155 mm/L52 version of the FH-70 towed howitzer, which is also used in Japan.

   Maximum range of fire is 30 km with standard HE-FRAG projectile and approximately 38 km with rocket assisted projectile. 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 Mitsubishi diesel engine, developing 600 horsepower. It is likely that it is the same Mitsubishi 6SY31WA engine, used on the Type 89 IFV. 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

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Type 99 SPH

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Type 99 SPH

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