Ordnance QF 4 inch gun Mk V | |
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![]() QF 4 inch HA guns aboard the cruiser HMAS Sydney, 1939–1940 | |
Type | Naval gun Anti-aircraft gun Coastal defence gun |
Place of origin | United Kingdom |
Service history | |
In service | 1914–1945 |
Used by | British Empire |
Wars | World War I World War II |
Production history | |
No. built | 944[1] |
Specifications | |
Mass | Barrel & breech: 4,890 lb (2,220 kg)[2] |
Barrel length | Bore: 15 ft (4.6 m) (45 cal) Total: 15 ft 8 in (4.8 m)[2] |
Shell | 31 lb (14.1 kg) fixed QF or Separate-loading QF |
Calibre | 4-inch (101.6 mm) |
Breech | horizontal sliding-block |
Recoil | hydro-pneumatic or hydro-spring 15 inches (380 mm) |
Elevation | mounting dependent |
Traverse | mounting dependent |
Muzzle velocity | 2,350 ft/s (716 m/s)[2] |
Maximum firing range | Surface: 16,300 yd (15,000 m)[3] AA: 28,750 ft (8,800 m)[2] |
Filling | Lyddite, Amatol |
Filling weight | 5 pounds (2.27 kg) |
The QF 4 inch Mk V gun[note 1] was a Royal Navy gun of World War I which was adapted on HA (i.e. high-angle) mountings to the heavy anti-aircraft role both at sea and on land, and was also used as a coast defence gun.
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