A Type 99 mine at the Imperial War Museum in London. Note the four magnets and the protruding fuze, and the missing safety pin.
Type
Antitank, vehicle mine
Place of origin
Empire of Japan
Service history
In service
1939 - 1945
Wars
Second Sino-Japanese War, World War II
Specifications
Mass
1.21 kg
Height
4 cm
Diameter
12 cm
Filling
TNT/RDX
Filling weight
1.5 lb (680 g)
Detonation mechanism
Timed fuse, magnetic starter
The Type 99 (Hako-Baku-Rai) mine was a Japanese anti-tank weapon used during the Second World War. It entered service in 1939. Four magnets were attached to the casing made of hemp cloth, along with an external fuze. The fuze had a time delay, which enabled it to be used as an anti-tank hand grenade, or a demolition charge. Once the safety pin was removed, it was armed, striking the fuze ignited a powder delay train. The mine detonated after a five to ten seconds delay, giving enough time for it to be thrown.
The mines could be stacked, held together by the magnets for greater effect. When used individually the mine could penetrate approximately 0.75 inches (19 mm) of steel, with two mines stacked it can penetrate 1.25 inches (32 mm) of steel.[1]
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Global Information
Empire of Japan