Type 99 155 mm self-propelled howitzer
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The is a
self-propelled howitzer Self-propelled artillery (also called locomotive artillery) is artillery equipped with its own propulsion system to move toward its firing position. Within the terminology are the self-propelled gun, self-propelled howitzer, self-propelled m ...
of the Japanese Ground Self-Defense Force, which was developed as successor of the
Type 75 155 mm Self-propelled howitzer The 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 co ...
.


History

The development of Type 99 self-propelled howitzer began in 1985 in order to replace the old Type 75 self-propelled howitzer. The new self-propelled artillery would use a L52 155 mm gun instead of the old L30 155 mm gun and would also mount the latest Fire-control system.
Mitsubishi Heavy Industries is a Japanese multinational engineering, electrical equipment and electronics corporation headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group and its automobile division is the predecessor of Mitsubishi Mo ...
was tasked to design the chassis and the gun would be manufactured by
Japan Steel Works is a steel manufacturer founded in Muroran, Hokkaidō, Japan in 1907. History Japan Steel Works was set up with investment from British firms Vickers, Armstrong Whitworth and Mitsui. During World War II, they manufactured what was then the wo ...
. The designing stage cost 5 billion yen and was completed in 1992. After various technical and practical tests, the first vehicle was delivered to the training division of
Japan Ground Self-Defense Force The Japan Ground Self-Defense Force ( ja, 陸上自衛隊, Rikujō Jieitai), , also referred to as the Japanese Army, is the land warfare branch of the Japan Self-Defense Forces. Created on July 1, 1954, it is the largest of the three service b ...
in 1999.戦車研究室
http://combat1.sakura.ne.jp/99SHIKI.htm


Overview

Research and development was started from 1985 as a successor for the older Type 75 self-propelled 155 mm howitzer.
Japan Steel Works is a steel manufacturer founded in Muroran, Hokkaidō, Japan in 1907. History Japan Steel Works was set up with investment from British firms Vickers, Armstrong Whitworth and Mitsui. During World War II, they manufactured what was then the wo ...
was the primary contractor, and developed the main gun and the turret. The Type 99 uses a modified chassis from the
Mitsubishi Type 89 IFV The (89 FV ) is a Japanese infantry fighting vehicle that entered service with the Japan Ground Self-Defense Force in 1989. There were 58 vehicles in service and a total of 120 produced by 2014 with 300 planned. The main armament of the vehicle ...
, lengthened with an additional road wheel. The Type 99 uses a 52 caliber barrel compared to the 30 caliber barrel on the Type 75 self-propelled howitzer. The secondary armament of the Type 99 consists of a roof-mounted .50 caliber (12.7 mm) machine gun, fitted with a shield. The armor of the Type 99 provides protection against small arms fire and artillery shell splinters. The vehicle is powered by a diesel engine, providing 600 horsepower. A travel lock for the gun is mounted on the front of the hull, which 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.


Operators

Japan *
Japan Ground Self-Defense Force The Japan Ground Self-Defense Force ( ja, 陸上自衛隊, Rikujō Jieitai), , also referred to as the Japanese Army, is the land warfare branch of the Japan Self-Defense Forces. Created on July 1, 1954, it is the largest of the three service b ...
** Fuji School *** Fuji School(Combined Training)Brigade **** JGSDF Artillery School Unit *** Ordnance School ** Northern Army *** 2nd Division **** 2nd Artillery Regiment(Mechanized) *** 5th Brigade **** 5th Artillery Unit *** 7th Division **** 7th Artillery Regiment(Mechanized) *** 11th Brigade **** 11th Artillery Unit (Mechanized) ** Northern Army Combined Brigade *** 1st Sergeant Training Unit


Similar vehicles

*
AS-90 The AS-90 ("Artillery System for the 1990s"), known officially as Gun Equipment 155 mm L131, is an armoured self-propelled artillery weapon used by the British Army. It can fire standard charges up to using 39 calibre long barrel (com ...
* AHS Krab * Msta-S 2S19 *
Panzerhaubitze 2000 The Panzerhaubitze 2000 ("tank howitzer 2000"), () abbreviated PzH 2000, is a German 155 mm self-propelled howitzer developed by Krauss-Maffei Wegmann (KMW) and Rheinmetall in the 1980s and 1990s for the German Army. It is capable of a very h ...
*
K-9 Thunder The K9 Thunder is a South Korean 155 mm self-propelled howitzer designed and developed by the Agency for Defense Development and civil contractors including Dongmyeong Heavy Industries, Kia Heavy Industry, Poongsan Corporation, and Samsung Aer ...
*
PLZ-05 The PLZ-05 or the Type 05 is a 155 mm self-propelled howitzer developed by the People's Liberation Army of China to replace the Type 59-1 130 mm towed gun and Type 83 152 mm self-propelled gun. The PLZ-05 was officially unveiled at ...


References

155 mm artillery Self-propelled howitzers of Japan Tracked self-propelled howitzers Military vehicles introduced in the 1990s {{artillery-stub