Type 90 Tank

Tanks Military 








The Type 90 tank is a main battle tank (MBT) of the Japan Ground Self-Defense Force (JGSDF). It was designed and built by Mitsubishi Heavy Industries as a replacement for all deployed Type 61 and Type 74 tanks, and entered service in 1990. It is to be superseded by the Type 10 tank.

Type 90 TankThe Type 90 mounts a Rheinmetall L44 120 mm smoothbore cannon licensed produced by Japan Steel Works Limited. This is the same gun that is mounted on the German Leopard 2, the American Abrams, and the South Korean K1A1 tank. Before Rheinmetall's gun was selected, Japan had successfully produced a domestic version of the 120 mm smoothbore for testing, but the lower cost of the Rheinmetall gave it an advantage over the domestic version.

The profile of the Type 90 is similar to the German Leopard 2A4 and it uses modular ceramic and steel composite armor, common in contemporary tank designs. The adoption of modular composite armor design facilitates the upgrading and exchange of the armor, and its frontal turret armor is rated at 380mm of effective thickness against kinetic energy penetrators, while the upper frontal hull armor is rated at 320mm of effective thickness against kinetic penetrators.

The Type 90 is smaller than most main battle tanks with a height of 2.33 metres (7.6 ft), a width of 3.33 metres (10.9 ft), and a weight of 50.2 metric tons (55.3 short tons). It was designed with a distinctive low-slung turret with boxy, vertical sides and a long overhanging bustle. In comparison, the Leopard 2A4's dimensions are 2.48 metres (8.1 ft) high and 3.70 metres (12.1 ft) wide with a weight of 55.2 metric tons (60.8 short tons).

Type 90 Tank
The powerpack of the Type 90 tank has the Mitsubishi 10ZG32WT 10-cylinder two-stroke cycle diesel engine providing 1500 hp, coupled with Mitsubishi MT1500 automatic transmission with four forward and two reverse gears, manufactured by Mitsubishi Heavy Industries (designated 10ZG32WT, MT1500). The development of the 10ZG32WT prototype was started in 1972 and was finished in 1982. It can attain a top output of 1,120 kW (1,500 horsepower).


The Type 90 has an approximate unit cost of 790 million Japanese yen or approximately 7.4 million US dollars at 2008 exchange rates.

341 Type 90 tanks were produced between 1990 and 2009 with an average annual production number of 19 vehicles. The original procurement plan was established in the 1980s while Japan was experiencing asset price bubble. After the asset price bubble burst in 1991 and the collapse of Soviet Union in 1992, Japan started to cut its defense budget. In order to save budget for Kongo Class missile destroyers and other new weapons, Japan made a plan to reduce the size of its tank force. The production of Type 90 therefore slowed down and part of its budget was shifted to the research and development of the new Type 10 main battle tank. More details