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14 cm/50 3rd Year Type naval gun
Type 3 140mm Gun from Battleship Mutsu - 1-wp
14 cm/50 3rd Year Type naval gun from the battleship Mutsu
Type Naval gun
coast defense gun
Place of origin Empire of Japan
Service history
In service 1914–1945
Used by Naval Ensign of Japan Imperial Japanese Navy
Wars World War I, World War II
Specifications
Weight 5,600–5,700 kilograms (12,346–12,566 lb)
Barrel length 7.0 meters (23 ft 0 in) (bore length)

Shell separate-loading, bagged charge
Shell weight 38 kilograms (84 lb)
Caliber 14-centimeter (5.5 in)
Breech Welin breech block
Rate of fire about 6 rounds per minute
Muzzle velocity 850–855 meters per second (2,790–2,810 ft/s)
Maximum range 19,750 meters (21,600 yd)

The 14 cm/50 3rd Year Type naval gun was a Japanese low-angle weapon introduced during World War I. It served as the secondary armament in a number of Japanese dreadnoughts and as the main armament in light cruisers and some auxiliary ships. It was also the most common Japanese coast defense gun during World War II. Third year type refers to the Welin breech block on this gun. Breech block design began in 1914, the third year of the Taishō period. This breech block design was also used on Japanese 40 cm (16 inch), 20 cm (8 inch), 15.5 cm (6 inch), 12.7 cm (5 inch), and 12 cm (4.7 inch) naval guns.[1]

This gun was not mounted aboard submarines. Submarine cruisers used the shorter-barreled 14 cm/40 11th Year Type naval gun.[2]

See alsoEdit

NotesEdit

  1. Campbell, pp. 173, 190
  2. Campbell, pp. 190–91

ReferencesEdit

  • Campbell, John (1985). Naval Weapons of World War II. Annapolis, MD: Naval Institute Press. ISBN 0-87021-459-4. 

External linksEdit

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