Indefatigable Class Battlecruiser

Indefatigable Class Battlecruiser

The Indefatigable class were the second class built of British battlecruisers which served in the Royal Navy and the Royal Australian Navy during World War I. The design represented a modest reworking of the preceding Invincible class, featuring increased endurance and an improved cross-deck arc of fire for their midships wing turrets achieved by a lengthening of the hull. Like its predecessor, the design resembled the contemporary dreadnought of the Royal Navy, but sacrificed armour protection and one turret from the main battery for a 4-knot (7.4 km/h; 4.6 mph) speed advantage.

Originally Indefatigable was the only ship of the class, but Australia and New Zealand were later built as part of a scheme to improve the defense of the Dominions by having each Dominion purchase a 'fleet unit' of one battlecruiser, three light cruisers and six destroyers. Only Australia fully acceded to the idea, forming the Royal Australian Navy, but New Zealand agreed to fund one battlecruiser. A modified Indefatigable design was chosen rather than the Lion-class battlecruiser then building for the Royal Navy.

They spent most of the war patrolling the North Sea, and participated in most of the battles there, although only New Zealand was in the United Kingdom when the war began. Indefatigable was in the Mediterranean where she pursued the German warships Goeben and Breslau as they fled towards Turkey and Australia was flagship of the Royal Australian Navy in Australian waters where she helped to secure the German Pacific colonies and searched, unsuccessfully, for the German East Asia Squadron before sailing for the United Kingdom in December 1914. New Zealand participated in a number of the early actions in the North Sea including the Battle of Heligoland Bight and the inconclusive Scarborough Raid. Australia was still under repair after a collision with New Zealand before the Battle of Jutland so only Indefatigable and New Zealand were present where the former was destroyed by a magazine explosion. Both Australia and New Zealand spent much uneventful time at sea after Jutland waiting for the next appearance of the High Seas Fleet, but that had been forbidden by the Kaiser. New Zealand conducted Admiral Jellicoe on his tour of India and the Dominions after the war while Australia returned home where she again became the flagship of the Royal Australian Navy. New Zealand was sold for scrap in 1922 while Australia only lasted two years more before being scuttled to comply with the terms of the Washington Naval Treaty.

Read more about Indefatigable Class Battlecruiser:  Background, Design, Construction, In Service

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