QF 4.7-inch Mk XI naval gun
Dual-purpose gun / From Wikipedia, the free encyclopedia
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The 4.7 inch QF Mark XI[Note 1] was a 50-calibre, 4.7-inch (120 mm) naval gun mounted on Royal Navy (RN) and Allied destroyers during World War II.[1]
Quick Facts Type, Place of origin ...
QF 4.7 inch Mark XI | |
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![]() Forward turrets on HMS Matchless | |
Type | Dual-purpose gun |
Place of origin | United Kingdom |
Service history | |
In service | 1941–1970 |
Used by | Royal Navy Turkish Navy |
Wars | World War II Korean War |
Production history | |
Designed | 1937–39? |
No. built | 87 |
Specifications | |
Mass | 3.351 long tons (3,405 kg) |
Length | 247.7 in (6.29 m) |
Barrel length | Bore: 236.2 in (6.00 m) L/50 (cal) |
Shell | Separate-loading |
Shell weight | 62 pounds (28.1 kg) SAP or HE |
Calibre | 4.724 inches (120.0 mm) |
Breech | Semi-automatic horizontal sliding-block |
Recoil | Hydro-pneumatic |
Elevation | -10° to +50° |
Rate of fire | 10 rounds per minute |
Muzzle velocity | 2,538 ft/s (774 m/s) |
Maximum firing range | 21,240 yards (19,420 m) at 45° |
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