QF 4-inch naval gun Mk XXIII
Submarine deck gun / From Wikipedia, the free encyclopedia
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The QF 4-inch gun Mark XXIII was introduced in late 1945 as a deck gun for Royal Navy submarines. It was the last type of gun to be fitted to British submarines, finally being retired in 1974.
Quick Facts Ordnance QF 4 inch gun Mk XXIII, Type ...
Ordnance QF 4 inch gun Mk XXIII | |
---|---|
Type | Submarine deck gun |
Place of origin | United Kingdom |
Service history | |
In service | 1945-1974 |
Used by | United Kingdom |
Wars | Indonesia–Malaysia confrontation Cold War |
Production history | |
Produced | 1945-46 |
No. built | 31 |
Specifications | |
Mass | 1,568 lb (711 kg) barrel and breech |
Length | 137.6 in (3.495 m) |
Barrel length | 132.2 in (3.358 m) bore (33 calibres) |
Shell | Fixed QF 35 lb (15.9 kg) 38.5 lb (17.5 kg) |
Calibre | 4 in (102 mm) |
Breech | horizontal sliding-block |
Carriage | Submarine SII mounting |
Elevation | -10 to +30 degrees |
Traverse | 360 degrees[1] |
Rate of fire | about 15 rounds per minute |
Muzzle velocity | 35 lb: 1,791 ft/s (546 m/s) 38.5 lb: 1,745 ft/s (532 m/s) |
Maximum firing range | 12,080 yd (11.05 km) 35 lb HE shell at 30 degrees: |
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