The BL 9.2 inch gun Mark XI was a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 50 calibre high-velocity naval gun

Naval artillery

Naval artillery, or naval riflery, is artillery mounted on a warship for use in naval warfare. Naval artillery has historically been used to engage either other ships, or targets on land; in the latter role it is currently termed naval gunfire fire support...

 which was mounted as primary armament on armoured cruisers and secondary armament on pre-dreadnought battleships.

History

The gun with its increased length of 50 calibres was an attempt to extract a higher velocity, and hence more range and armour-piercing capability, from the 9.2 inch gun. Like other British 50-calibre guns of the period it was relatively unsuccessful, and was the last model of 9.2 inch gun Britain built.

Guns were mounted in the following ships :

• Minotaur class armoured cruisers
  Minotaur class cruiser (1906)
  The Minotaur class was a three-ship class of armoured cruiser built around 1906 for the Royal Navy. They served during World War I, with all three being present at the Battle of Jutland, where HMS Defence was sunk. The surviving ships were scrapped postwar.-History:The Minotaur class was the last...
  
   laid down 1905 & completed 1908 - 1909 : 2 twin mounts.
• Lord Nelson class battleships
  Lord Nelson class battleship
  The Lord Nelson class was a two-ship class of pre-dreadnought battleships built by the Royal Navy between 1905 and 1908. Although they were the last British pre-dreadnoughts, both were completed and commissioned after HMS Dreadnought had entered service. and were serving in the Channel Fleet when...
  
  laid down 1905 & completed 1908 : 4 twin mounts and 2 single mounts.

External links

• Tony DiGiulian, British 9.2"/50 (23.4 cm) Mark XI