Samiksha Jaiswal (Editor)

BL 5 inch gun Mk I – V

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In service
  
1880 - 1918

Wars
  
Second Boer War

Used by
  
United Kingdom

Variants
  
Mks I - V

BL 5 inch gun Mk I – V

Type
  
Naval gun Coast defence gun Field gun

Weight
  
Mk I - II  : 38 long hundredweight (1,930 kg) Mk III - V : 40 long hundredweight (2,030 kg)

The BL 5 inch guns Mk I - Mk V were early British 5-inch rifled breechloading naval guns after it switched from rifled muzzle-loaders in the late 1870s. They were originally designed to use the old gunpowder propellants. The 5-inch calibre was soon discontinued in favour of QF 4.7-inch.

Contents

Guns equipped the following British warships :

  • Mariner-class gunvessels of 1883
  • Satellite-class sloops of 1883
  • Comus-class corvettes as re-gunned in the 1880s
  • Nymphe-class sloops laid down in 1885
  • Calypso-class third class cruiser/corvettes of 1883–84
  • Iris-class cruisers as re-gunned in 1888
  • Beagle-class sloops of 1889
  • Bacchante-class corvettes as re-gunned in the 1880s
  • These guns also equipped several small gunboats of Colonial navies of Australia in the 1880s in response to the perceived threat of Russian expansionism in the Pacific (The "Russian scares").

    Second Boer War (1899 - 1902) field gun

    A number of guns mounted on carriages from obsolete RML 40 pounder guns accompanied the British siege train (heavy artillery) to South Africa. They were not required for the expected siege of Pretoria, which did not eventuate. Its usefulness in the field was limited by lack of a recoil control system, and the QF 4.7 inch gun was the most commonly used British heavy gun in the war.

    Coast defence gun

    The gun was installed as a conventional coast defence gun in South Africa and Australia, and several in the United Kingdom. Its more common use ashore in the UK was as "moveable armaments" in forts : on 2-wheeled carriages similar to field carriages but intended only for moving short distances to position guns for defence of the fort. These used either obsolete 40-pounder RML carriages or special high-mounting carriages for firing over parapets with recoil controlled by a hydraulic buffer built into the platform to which the carriage was fastened.

    Surviving examples

  • A gun on the deck of HMS Gannet, Chatham, UK.
  • 2 guns on 40-pounder RML field carriages, outside the Union Buildings, Pretoria, South Africa
  • Outside the entrance to the Hong Kong Museum of Coastal Defence
  • No. 479 on Vavasseur mount at Queens Park, Maryborough, Queensland, Australia
  • A gun on Vavasseur mount at The Esplanade, Cairns, Queensland, Australia
  • References

    BL 5 inch gun Mk I – V Wikipedia