![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/9/98/I400gun.jpg/640px-I400gun.jpg&w=640&q=50)
14 cm/40 11th Year Type naval gun
Naval gun / From Wikipedia, the free encyclopedia
The 14 cm/40 11th Year Type naval gun was the standard surface battery for Japanese submarine cruisers of World War II. Most carried single guns, but Junsen type submarines carried two. Japanese submarines I-7 and I-8 carried an unusual twin mounting capable of elevating to 40°. The appended designation 11th year type refers to the horizontal sliding breech block on these guns. Breech block design began in 1922, or the eleventh year of the Taishō period in the Japanese calendar.[2] The gun fired a projectile 14 centimeters (5.5 in) in diameter, and the barrel was 40 calibers long (barrel length is 14 cm x 40 = 560 centimeters or 220 inches).[3]
Quick Facts Type, Place of origin ...
14 cm/40 11th Year Type naval gun | |
---|---|
![]() 14 cm/40 11th Year Type naval gun aboard Japanese submarine I-400 being inspected by United States Navy personnel. | |
Type | Naval gun |
Place of origin | Empire of Japan |
Service history | |
In service | 1922–1945 |
Used by | Imperial Japanese Navy |
Wars | World War II |
Specifications | |
Mass | Single Mount: 8,600 kilograms (18,960 lb) Twin Mount: 18,300 kilograms (40,345 lb)[1] |
Length | 5.9 meters (19 ft 4 in) |
Barrel length | 5.6 meters (18 ft 4 in) (bore length) |
Shell | separate-loading, cased charge |
Shell weight | 38 kilograms (84 lb) |
Caliber | 14-centimeter (5.5 in) |
Breech | Horizontal sliding breech block |
Elevation | Single Mount: +30° to −5° Twin Mount: +40° to −7° [1] |
Rate of fire | 5 rounds per minute |
Muzzle velocity | 700 meters per second (2,300 ft/s) |
Maximum firing range | 16,000 meters (17,000 yd) at +30°[1] |
Close