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Type 1 37 mm anti-tank gun
Anti-tank gun From Wikipedia, the free encyclopedia
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The Type 1 37 mm anti-tank gun (一式機動三十七粍速射砲, Isshiki Kidō sanjyūnana-miri sokushahō) was an anti-tank gun developed by the Imperial Japanese Army, and used in combat during World War II.[1] The Type 1 number was designated for the year the gun was accepted, 2601 in the Japanese imperial year calendar, or 1941 in the Gregorian calendar.[2]
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History and development
After the Nomonhan Incident, the shortcomings of the Type 94 37 mm anti-tank gun had become obvious, and the Imperial Japanese Army started the development of a new anti-tank gun to be more effective against the new Soviet tanks. However, as a new design would take time, as an interim measure, the existing Type 94 37 mm AT gun was modified with a longer barrel to provide for greater armor penetration. Despite the designation of Type 1 37 mm AT gun, it was not introduced to combat units until 1943.[3]
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Design
The Type 1 37 mm AT gun was basically a Type 94 37 mm AT gun with a longer gun barrel.[4] As with the Type 94, it had a very low profile and was intended to be operated from a squat or prone position. The gun had a gun shield to protect the gunner. It used a semi-automatic breech block with a horizontal sliding wedge. When the gun was fired the spent shell casing was automatically ejected and upon loading a fresh shell the breech block closed automatically. A hydro-spring recoil mechanism was housed under barrel. The weapon had a split trail which opened to an angle of 60 degrees for firing to improve stability.[3] Transport was by towing behind a truck or horse, via two steel disc wheels fitted with sponge rubber filled tires.
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Combat record
The Type 1 37 mm AT gun was available only in limited quantities, and the additional barrel length provided for only an incremental improvement in performance over the more numerous Type 94 37 mm AT gun.[5] It was marginally effective against the Allied M3 Stuart light tank in the Pacific War, but not against the M4 Sherman which was soon fielded in large numbers by the Allies. It was fielded in a wide variety of areas, but most notably Southeast Asia, and continued to be used with diminishing effectiveness until the end of World War II.
Type 1 37 mm tank gun
A variant known as the Type 1 37 mm tank gun was used as the main armament of the Type 2 Ke-To, and Type 2 Ka-Mi tanks. The tank gun had the following specifications:[6]
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References
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