|Ordnance QF 4 inch gun Mk XVI|
Twin Mk XVI on HMCS Haida
Naval anti-aircraft gun
|Place of origin||United Kingdom|
|Used by||Royal Navy|
Royal Canadian Navy
Royal Australian Navy
South African Navy
|Wars||World War II|
|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) S.A.P.
|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)|
|Muzzle velocity||2,660 feet per second (811 m/s)|
|Filling weight||9 pounds (4.08 kg)|
Service[edit | edit source]
The Mk XVI superseded the earlier QF 4 inch Mk V naval gun on many Royal Naval ships during the late 1930s and early 1940s.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):
- HMS Hood
- HMS Rodney
- HMS Barham, HMS Malaya, HMS Warspite
- Revenge-class battleships
- County-class cruisers
- HMS Exeter
- Swiftsure-class cruisers
- Crown Colony-class cruisers
- Edinburgh-class cruisers
- Southampton-class cruisers (Town-class)
- Arethusa-class cruisers
- Perth-class cruisers
- Leander-class cruisers
- HMS Effingham
- HMS Danae (ORP Conrad)
- Tribal-class destroyers
As main armament (list not complete):
- Aircraft carriers: HMS Furious, HMS Unicorn
- Escort carriers: Nairana-class escort carriers, HMS Pretoria Castle, HMS Activity
- C-class cruisers (converted to anti-aircraft cruisers)
- Abdiel-class minelayers
- L and M-class destroyer (the first series L: HMS Gorham, Lance, Legion, Lively)
- HMS Petard (modified)
- Weapon-class destroyers
- V and W-class destroyers (after WAIR modification - 15 ships)
- HMS Wallace (after WAIR modification)
- Hunt-class destroyers
- Some Bathurst-class corvettes (single-gun Mk XX mounting)
- Black Swan-class sloops
- Egret-class sloops
- Bittern-class sloop (modified)
- Grimsby-class sloop (modified)
- Bay-class frigates
- River-class frigates (part of Canadian-built)
- 8 auxiliary AA defence ships
- Some landing ships
Allied ships modified in the United Kingdom:
- ORP Błyskawica (Polish)
- HNLMS Jacob van Heemskerck (Dutch)
- HNLMS Isaac Sweers (Dutch)
- 4 French Elan-class avisos and Chamois-class avisos
Ammunition[edit | edit source]
See also[edit | edit source]
- QF 4 inch Mk V naval gun : Royal Navy anti-aircraft predecessor
- List of naval anti-aircraft guns
- List of naval guns
Surviving examples[edit | edit source]
- On HMCS Haida, Hamilton, Ortario, Canada.
- Naval Museum of Alberta, Canada
- On HMS Belfast, London.
- On ORP Błyskawica, Gdynia (re-bored to 100 mm).
- A pair at South African National Museum of Military History, Johannesburg
- A pair in a turret from INS Haifa (K-38), at Clandestine Immigration and Naval Museum, Haifa, Israel.
- Two single guns on HMAS Diamantina, Brisbane, Australia
Notes[edit | edit source]
- "British 4"/45 (10.2 cm) QF HA Marks XVI, XVII, XVIII and XXI". NavWeaps. http://www.navweaps.com/Weapons/WNBR_4-45_mk16.htm. Retrieved 2008-08-25.
- "THE 4-in. Q.F. MARK XVI* GUNS ON THE H.A. TWIN MARK XIX MOUNTING.". Historic Naval Ship Association. http://www.hnsa.org/doc/br224/part1.htm. Retrieved 2008-08-25.
- Mk XVI = Mark 16. Britain used Roman numerals to denote marks (models) of ordnance until after World War II. Mark XVI indicates this was the sixteenth model of QF 4 inch gun.
[edit | edit source]
|Wikimedia Commons has media related to QF 4 inch Mk XVI naval gun.|
- B.R. 257. Handbook for the 4 inch Q.F. Mark XVI* Gun on the H.A. Twin Mark XIX And Single Mark XX Mountings. G3821/41 Naval Ordnance Department, Admiralty, July 1941.
- Tony DiGiulian, British 4"/45 (10.2 cm) QF HA Marks XVI, XVII, XVIII and XXI
- Youtube video clip of demonstration of loading and firing on HMS Belfast
- Youtube video clip of demonstration of loading and firing on HMS Belfast : closeup Note : for safety reasons, cartridges are seen being loaded without the normal attached shell.
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