Ordnance BL 4 inch gun Mk IX | |
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On Flower-class corvette HMCS Calgary in World War II
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Type | Naval gun |
Service history | |
In service | 1916 - 1945 |
Used by |
Royal Navy |
Wars |
World War I World War II |
Production history | |
No. built | 2,382 |
Specifications | |
Weight | 2 tons barrel & breech |
Barrel length | 180 inches (4.572 m) bore (45 calibres) |
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Shell | 31 pounds (14.1 kg) |
Calibre | 4 inches (101.6 mm) |
Breech | Welin interrupted screw |
Elevation | -10 degrees to +30 degrees |
Rate of fire | 10-12 rpm |
Muzzle velocity | 800 metres per second (2,600 ft/s) |
Maximum firing range | 12,660 metres (13,850 yd) |
Royal Navy
Royal Canadian Navy
Free French Navy
Hellenic Navy
Netherlands Navy
New Zealand Navy
Norwegian Navy