The Full Wiki

QF 4 inch Mk V naval gun: Wikis

Advertisements
  

Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.

Encyclopedia

From Wikipedia, the free encyclopedia

Ordnance QF 4 inch gun Mk V
QF 4 inch Mk V naval gun WWII AWM P00444.155.jpeg
HA gun in action during World War II
Type Naval gun
Heavy anti-aircraft gun
Coastal defence gun
Place of origin  United Kingdom
Service history
In service 1914 - 1940s
Used by British Empire
Wars World War I
World War II
Production history
Number built 944[1]
Specifications
Weight Barrel & breech 4,890 lb (2,220 kg)[2 ]
Barrel length Bore 180 inches (4.6 m) (45 cal) Total 187.8 inches (4.8 m)[2 ]

Shell Separate-loading QF or fixed QF 31 pounds (14.06 kg)
Calibre 4-inch (101.6 mm)
Breech horizontal sliding block
Recoil hydro - pneumatic 15 inches (380 mm)
Elevation mounting dependent
Traverse mounting dependent
Muzzle velocity 2,350 feet per second (716 m/s)[2 ]
Maximum range 16,300 yards (15,000 m)[3]
AA 28,750 feet (8,800 m)[2 ]
Filling Lyddite, Amatol
Filling weight 5 pounds (2.27 kg)

The QF 4 inch Mk V gun was a Royal Navy gun of World War I which was adapted on HA mountings to the heavy anti-aircraft role both at sea and on land, and was also used as a coast defence gun.

Contents

Service

Advertisements

Royal Navy service

LA gun seen mounted on port side of Arethusa class cruiser HMS Aurora (left), World War I
On Polish destroyer ORP Piorun, formerly HMS Nerissa, 1940, on Mk III** HA mounting. Note 2 additional spring recuperators above the breech

This QF gun was introduced to provide a higher rate of fire than the BL 4 inch Mk VII. It first appeared in 1914 as secondary armament on Arethusa class cruisers, was soon adaped to a high-angle anti-aircraft role, and was typically used on cruisers and heavier ships.

Mk V was superseded by the QF 4 inch Mk XVI as the HA (i.e. anti-aircraft) gun on new warships in the 1930s, but it served on many ships such as destroyers and light cruisers in World War II.[4]

Army anti-aircraft gun

Early in World War I several guns were supplied by the Navy for evaluation as anti-aircraft guns for the home defence of key installations in Britain. They were mounted on static platforms and proved fairly successful after a fixed round was developed to replace the original separate round, and more followed. The AA mounting allowed elevation to 80° but loading was not possible above 62°, which slowed the maximum rate of fire.[5] At the Armistice a total of 24 guns were employed in AA defences in Britain and 2 in France.[6] After World War I the guns were returned to the Navy.

Coast Defence gun

From 1915 to 1928 several guns were mounted in forts to guard the estuary of the River Humber.[7]

Anti-aircraft performance

The following table[8] compares the gun's performance with the other British World War I anti-aircraft guns:-

Gun m/v ft/s Shell (lb) Time to 5,000 ft (1,500 m) at 25° (seconds) Time to 10,000 ft (3,000 m) at 40° (seconds) Time to 15,000 ft (4,600 m) at 55° (seconds) Max. height (ft)[9]
QF 13 pdr 9 cwt 1990 12.5 10.1 15.5 22.1 19,000
QF 12 pdr 12 cwt 2200 12.5 9.1 14.1 19.1 20,000
QF 3 inch 20 cwt 1914 2500 12.5 8.3 12.6 16.3 23,500
QF 3 inch 20 cwt 1916 2000 16 9.2 13.7 18.8 22,000[10]
QF 4 inch Mk V World War I 2350 31 (3 c.r.h.) 4.4 9.6 12.3 28,750
QF 4 inch Mk V World War II [11] 2350 31 (4.38/6 c.r.h.) ? ? ? 31,000

See also

Notes

  1. ^ Tony DiGiulian quotes 283 Mk VC built for the navy during WWII; 554 earlier types built for the navy; about 107 earlier types built for the Army in WWI.
  2. ^ a b c d Hogg & Thurston 1972, Page 101
  3. ^ WWI 3 c.r.h. HE shell. Tony DiGiulian, "British 4"/45 (10.2 cm) QF Mark V and Mark XV"
  4. ^ Tony DiGiulian's webpage provides comprehensive information on this gun's Naval service. Tony DiGiulian (January 13, 2008). "British 4"/45 (10.2 cm) QF Mark V and Mark XV". http://www.navweaps.com/Weapons/WNBR_4-45_mk5.htm. Retrieved 2008-03-29.  
  5. ^ Hogg & Thurston 1972, Page 100
  6. ^ Routledge 1994, Page 27
  7. ^ Hogg & Thurston 1972, Page 98
  8. ^ Routledge 1994, Page 9
  9. ^ Hogg & Thurston 1972, Page 234-235
  10. ^ Routledge 1994, Page 13
  11. ^ WWII details from Tony DiGiulian's website

References

  • Tony DiGiulian, British 4"/45 (10.2 cm) QF Mark V and Mark XV
  • I.V. Hogg & L.F. Thurston, British Artillery Weapons & Ammunition 1914-1918. London: Ian Allan, 1972.
  • Brigadier N.W. Routledge, History of the Royal Regiment of Artillery. Anti-Aircraft Artillery, 1914-55. London: Brassey's, 1994. ISBN 1 85753 099 3

External links


Advertisements






Got something to say? Make a comment.
Your name
Your email address
Message