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Type 1 47 mm Anti-Tank Gun
The was an anti-tank gun developed by the Imperial Japanese Army, and used in combat during World War II.〔Bishop. ''The Encyclopedia of Weapons of World War II''〕 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.〔War Department TM-E-30-480 ''Handbook on Japanese Military Forces'' September 1944 p 400〕
==History and development==
The Type 1 47 mm Anti-Tank gun was accepted into service in 1942. The design originated as an improvement to the prototype “Experimental Type 97 (1937) 47 mm Anti-Tank Gun” (試製九七式四十七粍速射砲), which was tested between 1938 and 1939. The prototype weighed 567 kilograms with a barrel length of 2,515 mm, a traverse range of ±50 degrees and an elevation range of between minus 10 and plus 20 degrees, and a muzzle velocity of 730 m/s. The prototype was not accepted into service because it was considered to not have sufficient performance.
After the Nomonhan Incident, the Imperial Japanese Army started the development of a new anti-tank gun, considering that the Type 94 37 mm Anti-Tank Gun would likely be ineffective against the new Soviet tanks. The design was the first completely indigenous anti-tank gun design completed in Japan, and production was assigned to the Army's Osaka Arsenal. In terms of performance, the design was still somewhat inferior to advanced contemporary designs in western nations, but was considered suitable by the Imperial Japanese Army General Staff due to the anticipated lack of armor by the National Revolutionary Army of the Republic of China, and by the belief that Japan would face only light tanks fielded by the Allied nations in case of a more general war.〔Chant, Artillery of World War II. Pp. 61〕 The Type 1 47 mm AT Gun was introduced in 1942, and approximately 2,300 were produced.〔() Taki's Imperial Japanese Army〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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