14 cm/50 3rd Year Type naval gun

The 14 cm/50 3rd Year Type naval gun was a Japanese low-angle weapon introduced during World War I.

14 cm/50 3rd Year Type naval gun
14 cm/50 3rd Year Type naval gun from the battleship Mutsu
TypeNaval gun
Coast-defense gun
Place of originJapan
Service history
In service1914–1945
Used by Imperial Japanese Navy
Wars
Specifications
Mass5,600–5,700 kilograms (12,346–12,566 lb)
Barrel length7.0 meters (23 ft 0 in) (bore length)
Shellseparate-loading, bagged charge
Shell weight38 kilograms (84 lb)
Caliber14 centimeters (5.5 in)
BreechWelin breech block
Elevation-7° to +35° depending on mount[1]
Rate of fireAbout 6 rounds per minute
Muzzle velocity850–855 meters per second (2,790–2,810 ft/s)
Maximum firing range19,750 meters (21,600 yd) at +35°[1]

History

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.[2]

This gun was not mounted aboard submarines. Submarine cruisers used the shorter-barreled 14 cm/40 11th Year Type naval gun.[3]

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See also

Weapons of comparable role, performance and era
  • BL 5.5 inch Mark I naval gun : British equivalent
  • Canon de 138 mm Modèle 1910 Naval gun : French equivalent
  • A 3rd Year Type gun used for coastal defense.
  • A captured gun after the Battle of Enogai.
  • A turret mounted gun captured on Tarawa.
  • One of the three surviving Piti Guns on Guam.

Notes
  1. Campbell, p. 190
  2. Campbell, pp. 173, 190
  3. Campbell, pp. 190–91

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