Indefatigable's

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Indefatigable's

Post  kosovohp on Thu Feb 24, 2011 5:04 am

Indefatigable's main armament was eight breech-loading BL 12-inch Mark X guns mounted in four hydraulically powered twin turrets. Two turrets were mounted fore and aft on the centreline, identified as 'A' and 'X' respectively. The other two were wing turrets mounted amidships and staggered diagonally: 'P' was forward and to port of the centre funnel, while 'Q' was situated starboard and aft. 'P' and 'Q' turrets had some limited ability to fire to the opposite side. Her secondary armament consisted of sixteen BL 4-inch Mark VII guns positioned in the superstructure.[7] She mounted two 17.72-inch (450 mm) submerged torpedo tubes, one on each side aft of 'X' barbette, and twelve torpedoes were carried.[8]
Indefatigable was unique among British battlecruisers in having an armoured spotting and signal tower behind the conning tower, protected by 4 inches (102 mm) of armour. However, the spotting tower was of limited use, as its view was obscured by the conning tower in front of it and the legs of the foremast and superstructure behind it.[9] During a pre-war refit, a 9-foot (2.7 m) rangefinder was added to the rear of the 'A' turret roof, and this turret was equipped to control the entire main armament as an emergency backup for the normal fire-control positions.[10]


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