Type 87 self-propelled anti-aircraft gun

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Mitsubishi Type 87
JGSDF type 87 Self-Propelled Anti-Aircraft Gun 02.jpg
Type 87 SPAAG at Camp Shimoshizu, Chiba Prefecture
Type Self-propelled anti-aircraft gun
Place of origin Japan
Service history
In service 1987 to present
Used by Japan Ground Self-Defense Force (JGSDF)
Production history
Designer Mitsubishi Heavy Industries, Japan Steel Works
Designed 1982
Manufacturer Mitsubishi Heavy Industries
Produced 1987
No. built 52
Weight 44 t
Length Hull: 6.7 m (22 ft 0 in)
Width 3.2 m (10 ft 6 in)
Height 4.10 m (13 ft 5 in)
(radar erected)
Crew 3

Armor Steel, "Classified"
2 × Oerlikon 35 mm KDA autocannon
2 × 3 smoke grenade dischargers
Engine Mitsubishi 10ZF Type 22 10-cylinder air-cooled diesel engine
750 hp (560 kW)
Power/weight 17 hp/ton
Suspension Hydro-pneumatic
300 km (190 mi)
Speed 53 km/h (33 mph)

The Type 87 Self-propelled Anti-aircraft Gun) (87式自走高射機関砲, hachi-nana-shiki-jisou-kousya-kikan-hou) is a Japanese air defense weapon built around the Oerlikon 35 mm twin cannon system as used on the Gepard self-propelled anti-aircraft gun. The system uses a modified Type 74 tank chassis. It is also nicknamed by field officers as "Guntank" after the similar-looking mobile suit in the Mobile Suit Gundam series.[1]


As the JSDF began to seek a replacement for the M42 Duster SPAAGs provided by the United States, the Japanese Defense Agency began to issue requirements for the production of a local SPAAG unit to replace the M42. Mitsubishi Heavy Industries had been eventually awarded the contract to produce a SPAAG unit to replace its old M42s.


It had been developed in 1987, given the Type 87 designation status, with Mitsubishi Heavy Industries providing the chassis and Japan Steel Works providing the cannon system. Initially, the chassis of the Type 61 tank would be used. Later, it had been rejected and had the chassis of the Type 74 tank used instead as a basis for producing the Type 87 SPAAG.

Prior to its development, tests had begun underway in 1982 with a prototype SPAAG unit manufactured in 1983.

A Type 87 prototype at the JGSDF public information center.


In 2010, it was reported that the Japan Self-Defense Forces had 52 of these vehicles in service.


  1. ^ ガンタンクとか87AWとも呼ばれる。 Also called Guntank or 87AW.

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