QF 4 inch Mk XVI naval gun

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Ordnance QF 4 inch gun Mk XVI
300px
Twin Mk XVI on HMCS Haida
Type Naval gun
Heavy anti-aircraft gun
Place of origin  United Kingdom
Service history
In service 1936-[1]
Used by Royal Navy
Royal Canadian Navy
Royal Australian Navy
South African Navy
Wars World War II
Specifications
Weight Barrel & breech 4,495 lb (2,039 kg)
Barrel length 180 inches (4,572 mm) (45 cal))

Shell Fixed QF 35 pounds (15.88 kg) HE
38.25 pounds (17.35 kg) SAP
Calibre 4-inch (101.6 mm)
Breech vertical sliding block
Recoil hydro - pneumatic 831 millimetres (33 in)
Elevation mounting dependent (-10 to 80 deg on H.A. twin mark XIX mount)[2]
Traverse mounting dependent
Muzzle velocity 2,660 feet per second (811 m/s)
Filling weight 9 pounds (4.08 kg)

The QF 4 inch Mk XVI gun was the standard British Empire naval anti-aircraft and dual-purpose gun of World War II.

Service

File:HMAS Swan guns (079323).jpg
Twin guns of HMAS Swan bombarding shore positions in New Guinea, February 1945

The Mk XVI superseded the earlier QF 4 inch Mk V naval gun on many Royal Naval ships during the late 1930s and early 1940s. These guns were usually mounted on HA/LA Mark XIX twin mountings, although several Australian frigates and corvettes had single-gun Mk XX mountings.

As secondary armament (list not complete):

As main armament (list not complete):

Allied ships modified in the United Kingdom:

The South African Navy Loch class frigates (SAS Good Hope, SAS Natal and SAS Transvaal) each had two of these guns mounted on a twin Mark XIX on their foredeck between 1944 and 1976.

Ammunition

See also

Surviving examples

Notes

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External links

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  1. "British 4"/45 (10.2 cm) QF HA Marks XVI, XVII, XVIII and XXI". NavWeaps. Retrieved 2008-08-25. 
  2. "THE 4-in. Q.F. MARK XVI* GUNS ON THE H.A. TWIN MARK XIX MOUNTING." Historic Naval Ship Association. Retrieved 2008-08-25.