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Great Britain

BL 2.75 inches mountain gun

Mountain artillery

Contributor :
(Wikimedia Commons) Langham Rob      http://commons.wikimedia.org/
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Location :
United Kingdom
Heugh Battery Museum
Coordinates : Lat : 54.69698 / Long : -1.17673
General comments on this surviving gun :

Identical items in the same location : 1
Items covered by this file : 1

Historic and technical information
Denomination :     BL 2.75-in mountain gun Origin :       ( Royal Arsenal)          

Historic context :

The unsatisfactory performances of the BL 10-Pdr mountain gun adopted in 1901 were inducing the need for a more modern weapon with a recoil recuperation system in order to enter finally in the era of the Quick Firing guns. But the budgets could not afford the cost of the design of a brand new model, so in 1911 an evolution of the old 10-Pdr gun was proposed, with the 'BL 2.75-in mountain gun'.

The original tube was therefore modified in order to adapt a recoil recuperating device, to mount it a a brand new polle-trail carriage with a spade, and to give it a shield. It could be dismantled int 6 separate loads for transport. The shell weight was also increased for more power.

Some of these guns were briefly engaged in Western Europe with the Indian trrops in November 1914, then most of the guns were sent to Egypt. 183 pieces of BL 2.75-in were built. 106 were still in service in 1918.

Technical data :

  • Complete description : Ordnance Breech Loading 2.75 inches mountain gun
  • Design year : 1911
  • Calibre : 69.85 mm (2.75 inches)
  • Weight in firing position : 586 kg, dismontable in 6 separate loads
  • Weight for transportation :
  • Tube length in calibres : 27.80
  • Grooves : 0 unknown
  • Projectile weight : 5.67 kg (shrapnel)
  • Initial speed : 393 m/s
  • Fire rate :
  • Range : 4046 m (shrapnel shell); 6562 m (high explosive shell)
  • Elevation range : -15 to +22 degrees
  • Direction range : 4 degrees total range

  • British Artillery 1914-19, Field Army Artillery           Dale Clarke                   Osprey Publishing   2004  
  • Allied Artillery of World War One       Ian V. Hogg                   Crowood   1998  
  • Wikipedia http://fr.wikipedia.org/