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40 cm/45 Type 94 naval gun

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Title: 40 cm/45 Type 94 naval gun  
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Subject: Type 94, Naval guns of Japan, World War II naval weapons, 16"/50 caliber Mark 7 gun, Naval artillery
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40 cm/45 Type 94 naval gun

40 cm/45 Type 94
A Type 94 Naval Gun being calibrated on the Yamato during construction
Type Naval gun
Place of origin Empire of Japan
Service history
In service 1940–1945
Used by Imperial Japanese Navy
Wars World War II
Specifications
Weight 147.3 tonnes
Length OA 21.13 m (69 ft 4 in) L/46

Shell Separate charges and shell
Calibre 460 mm (18.1 in)
Elevation +45/-5 degrees. 10°/s
Traverse 300°, 2°/s
Rate of fire 1/3 rounds/min
Muzzle velocity 780 m/s (2,600 ft/s)
Effective firing range 25 km (16 mi)
Maximum firing range 42 km (26 mi) at 45° elevation

The Japanese "40 cm/45 Type 94 naval gun" (四五口径九四式四〇糎砲 Yonjūgo-kōkei kyūyon-shiki yonjussenchi-hō) was the largest bore gun ever mounted on any warship. They were actually 46 cm (18.1 in) guns, but were designated 40 cm (15.7 in) in an effort to hide their true size.

Contents

  • Description 1
  • See also 2
  • References 3
  • External links 4

Description

The built-up guns were mounted as the main armament of the Yamato-class battleships that were in service with the Imperial Japanese Navy during World War II. When the turrets and the guns were mounted, each weighed 2,510 tons, which is about the same tonnage as an average sized destroyer of the era.

The Japanese guns were of a slightly larger bore than the three British 18 inch naval guns built during World War I, although the shells were not as heavy. Britain had later designed the N3-class battleship with 18-inch guns but none were built, leaving no Allied naval guns to compare with the Type 94. Unlike the very large guns of other navies they could fire special anti-aircraft shells (Sanshiki) referred to as "beehive".

See also

References

  • Scottish History - Mons Meg reportedly mounted at sea
  • 18.1"/45 caliber, Nihon Kaigun
  • Japan 40cm/45 (15.9") Type 94 - Actual Size 46cm (18.1"), Navweaps.com
  • PIECES LOURDES : 240 et plus, le.fantasque.free.fr

External links

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