HMS Ajax (1912)

	The crew of the Ajax painting the ship, Grand Harbour, Valletta, Malta, 1921
History
United Kingdom
Name	Ajax
Namesake	Ajax
Builder	Scotts Shipbuilding & Engineering, Greenock
Cost	£1,889,387
Laid down	27 February 1911
Launched	21 March 1912
Completed	May 1913
Commissioned	31 October 1913
Decommissioned	April 1924
Out of service	October 1926
Fate	Sold for scrap, 10 December 1926
General characteristics (as built)
Class and type	King George V-class dreadnought battleship
Displacement	25,420 long tons (25,830 t) (normal)
Length	597 ft 9 in (182.2 m) (o/a)
Beam	89 ft 1 in (27.2 m)
Draught	28 ft 8 in (8.7 m)
Installed power	27,000 shp (20,000 kW); 18 × Babcock & Wilcox boilers;
Propulsion	4 × shafts; 2 × steam turbine sets
Speed	21 knots (39 km/h; 24 mph)
Range	6,310 nmi (11,690 km; 7,260 mi) at 10 knots (19 km/h; 12 mph)
Complement	869 (1914)
Armament	5 × twin 13.5-inch (343 mm) guns; 16 × single 4-inch (102 mm) guns; 3 × 21-inch (533 mm) torpedo tubes;
Armour	Belt: 12 in (305 mm); Deck: 1–4 in (25–102 mm); Turrets: 11 in (280 mm); Barbettes: 10 in (254 mm);

HMS Ajax was the third of four King George V-class dreadnought battleships built for the Royal Navy in the early 1910s. After commissioning in 1913, she spent the bulk of her career assigned to the Home and Grand Fleets. Aside from participating in the failed attempt to intercept the German ships that had bombarded Scarborough, Hartlepool and Whitby in late 1914, the Battle of Jutland in May 1916 and the inconclusive action of 19 August, her service during World War I generally consisted of routine patrols and training in the North Sea.

After the war, Ajax was assigned to the Mediterranean Fleet, where she took part in the Allied intervention in the Russian Civil War in the Black Sea in 1919–1920. The ship was deployed to Turkish waters during the Chanak Crisis of September–October 1922. Ajax was placed in reserve in 1924 before being sold for scrap two years later in accordance with the terms of the Washington Naval Treaty.