12 cm 11th Year Type naval gun
World War II Japanese naval gun and coast defense gun / From Wikipedia, the free encyclopedia
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The 12 cm 11th Year Type naval gun was a Japanese naval gun and coast defense gun used on submarines, minesweepers, and torpedo boats of the Imperial Japanese Navy during World War II.
Quick Facts Type, Place of origin ...
12 cm 11th Year Type naval gun | |
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Type | Naval gun Coastal artillery Deck gun |
Place of origin | Empire of Japan |
Service history | |
In service | 1922-1945 |
Used by | Imperial Japanese Navy |
Wars | World War II |
Specifications | |
Mass | 3,250 kg (7,170 lb) |
Length | 5.26 m (17 ft 3 in) |
Barrel length | 4.42 m (14 ft 6 in) |
Height | 2.1 m (7 ft) |
Shell | Separate loading 120 x 550R cased charges and projectiles |
Shell weight | 44 lb 12 oz (20.3 kg) |
Caliber | 120 mm (4.7 in) |
Breech | Horizontal sliding-block |
Recoil | Hydro-pneumatic |
Carriage | Pedestal mount |
Elevation | Ship: +10° to +55° Submarine: +10° to +33° |
Traverse | 360° |
Rate of fire | 5-6 rounds per minute |
Muzzle velocity | 2,700 ft/s (820 m/s) |
Effective firing range | 17,500 yd (16,000 m) at 33° |
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