Type 90 75 mm Field Gun

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Type 90 75 mm Field Gun
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Type 90 75 mm Field Gun at the U.S. Army Field Artillery Museum, Ft. Sill, OK
Type Field gun
Place of origin  Empire of Japan
Service history
In service 1932-1945
Used by War flag of the Imperial Japanese Army.svgImperial Japanese Army
Wars Second Sino-Japanese War
Soviet-Japanese Border Wars
World War II
Production history
Produced 1932-1945
Number built 786
Specifications
Weight 1,400 kg (3,086 lb) (firing)
2,000 kg (4,409 lb) (travel)
Length 5.23 m (17 ft 2 in) (firing)
3.8712 m (12 ft 8.41 in) (traveling)
Barrel length Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). L/38.4
Width 1.50 m (4 ft 11 in) Track
1.75 m (5 ft 9 in) Maximum
Height 1.65 m (5 ft 5 in)
Shell 6.56 kilograms (14.5 lb)
Caliber 75 mm (2.95 in)
Action Manual
Breech horizontal sliding block
Recoil hydro-pneumatic
Carriage split trail
Elevation -8° to +43°
Traverse 25° left, 25° right
Rate of fire 2 minutes 15 rpm,
15 minutes 4 rpm
Continuous 100-120 rph
Muzzle velocity 683 m/s (2,241 ft/s)
Maximum firing range 14,960 metres (16,360 yd)
Sights panoramic

The Type 90 75 mm Field Gun (九〇式野砲 Kyūmaru-shiki yahō?) was a field gun used by the Imperial Japanese Army during the Second Sino-Japanese War, Soviet-Japanese Border Wars and World War II. The Type 90 designation was given to this gun as it was accepted in the year 2590 of the Japanese calendar (1930).[1] It was intended to replace the Type 38 75 mm Field Gun in front line combat units, but due to operational and budgetary constraints, the Type 38 continued to be used.[2]

History and development

Prior to World War I, the Imperial Japanese Army was largely equipped with Krupp cannons from Germany. After the Versailles Treaty, the Japanese switched to the French Schneider company, and purchased numerous examples for test and evaluation. With an Army rearmament program starting in 1931, a new 75 mm field gun loosely based on the French Schneider et Cie Canon de 85 mle 1927 built for Greece[3][4][5] was introduced, and labeled the "Type 90".[6]

However, few units were built, and the design never achieved its intended purpose of replacing the Type 38 75 mm Field Gun. The Schneider design was very complex and expensive to build, requiring very tight dimensional tolerances which were beyond the limits of Japanese industry to sustain at the time. In particular, the recoil system required a high amount of complex maintenance, which was difficult to sustain in front line combat service.[7]

Design

The Type 90 75 mm Field Gun was unique among Japanese artillery pieces in that it had a muzzle brake. The carriage was of the split trail type. The Type 90 was built in two version: one with wooden wheels suitable for animal (horse) draft, and another with solid rubber tires and a beefed-up suspension for towing by motor vehicle. The latter weighed 200 kilograms (440 lb) more.[8]

The Type 90 75 mm Field Gun was capable of firing High-explosive, armor-piercing, shrapnel, incendiary, smoke and illumination shells. Its range of 15,000 metres (16,000 yd) for a weight of 1,400 kilograms (3,100 lb) compared well with its contemporaries.

Combat record

The Type 90 75 mm Field Gun was issued primarily to units based in Manchukuo, and was rarely deployed to the Pacific theatre of operations. Its initial use in combat was against the Soviet Red Army at the Battle of Nomonhan. When deployed later against Allied forces, it was often used as an anti-tank gun, as its high speed shell was effective against armored vehicles.[9] It was also used at the Battle of the Philippines, Battle of Iwo Jima and Battle of Okinawa, often deployed together with armored units. The Type 90 continued to be used as field artillery until the surrender of Japan.[10]

Variants

The Type 90 formed the basis for the Type 3 75 mm Tank Gun used in the Type 3 Chi-Nu medium tank.[11]

References

Notes

  1. ↑ War Department TM-E-30-480 Handbook on Japanese Military Forces September 1944 p 400
  2. ↑ Bishop, Chris. The Encyclopedia of Weapons of World War II
  3. ↑ War Department Special Series No 25 Japanese Field Artillery October 1944
  4. ↑ Tomczyk, Andrzej, Japanese Armor Vol. 4, p. 3.
  5. ↑ History of War
  6. ↑ Mayer, S. L. The Rise and Fall of Imperial Japan, pp. 57-59
  7. ↑ Mayer, S. L. The Rise and Fall of Imperial Japan, p. 59
  8. ↑ US Department of War. TM 30-480, Handbook on Japanese Military Forces
  9. ↑ MacLean, Donald B. Japanese Artillery: Weapons and Tactics
  10. ↑ [1] Taki's Imperial Japanese Army
  11. ↑ Tomczyk, Andrzej. Japanese Armor Vol. 4, p. 3

Bibliography

  • Bishop, Chris (eds). The Encyclopedia of Weapons of World War II, Barnes & Nobel, 1998, ISBN 0-7607-1022-8
  • Chamberlain, Peter and Gander, Terry. Light and Medium Field Artillery. Macdonald and Jane's, 1975, ISBN 0-356-08215-6
  • Chant, Chris. Artillery of World War II, Zenith Press, 2001, ISBN 0-7603-1172-2
  • McLean, Donald B. Japanese Artillery: Weapons and Tactics, Wickenburg, Ariz. Normount Technical Publications, 1973, ISBN 0-87947-157-3
  • Mayer, S. L. The Rise and Fall of Imperial Japan, The Military Press, 1984, ISBN 0-517-42313-8
  • Tomczyk, Andrzej. Japanese Armor Vol. 4, AJ Press, 2005, ISBN 83-7237-167-9
  • US Department of War Special Series No 25 Japanese Field Artillery October 1944
  • US Department of War. TM 30-480, Handbook on Japanese Military Forces, Louisiana State University Press, 1994, ISBN 0-8071-2013-8

External links

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