Machinery parts of British Duke of Edinburgh-class armoured cruisers exchangeable according to the Dutch magazine Marineblad dated 1906-1907 No.4

Duke of Edinburg-class

An item referred to the magazine Schiffbau reporting that all machinery parts of the British armoured cruiser Black Prince similar to the parts of her sister ships Duke of Edinburgh, Cochrane, Natal and Achilles to simplify exchanging. To obtain this possibility increased the costs with another 144.000 Dutch guilders.

Laid down at the |Thames Ironworks and Shipbuilding Company, Blackwall, London, England on 3 June 1903, launched on 8 November 1904, commissioned on 17 March 1906 and sunk during the Battle of Jutland against the German fleet on 31 May 1916. With numerous hits scored by German warships like the battleships Thüringen, Nassau, Ostfriesland and Friedrich der Grosse sank she within 15 minutes with her entire crew of 857 men. Building cost 1.193.414 pound sterling. Of the Duke of Edinburg-class consisting of the Duke of Edinburgh and the Black Prince, designed by director of naval construction sir Philip Watts (1) preceded by the Devonshire-class and succeeded by the Warrior-class. Built under the 1902-1903 Naval Estimates.

General technical specifications. With a displacement of 12.790 tons/12.590 long tons-13.770 tons/13.500 long tons (design) were the dimensions 146,3 (between perpendiculars)|-154,08 (over all) x 222,4 x 9,1 (fore)-8,4 (aft) x 9,1 (metacentric height) metres or 480-506.6 x 73.6 x 26.6-27.6 x 4.2 feet. The 2 shafts 2-4 cylinder vertical triple expansion steam engines and 26 boilers supplied 23.000 ihp allowing a speed of 23 knots or with a speed of 10 knots a range of 8.130 nautical miles. The crew numbered 769 men. The armament consisted of 6x1-23,4cm/9.2” breech loading Mk X guns, 10x1-15,2cm/6” breech loading Mk XI guns, 20x1-4,7cm/3pd quick firing Vickers guns and 3-45cm/18” submerged torpedo tubes, for which 18 torpedoes were carried with them. The Krupp cemented armour consisted of a 7,6cm3” (end)-10,2cm/4” (between central citadel and bow)- 15,2cm/6” over a length of 79,2m/260 feet of the hull amidships with a height of 4,42metres/14.6”feet above and 1,47 metres/4.10 feet below the waterline. The citadel was protected by 6” thick transverse bulkheads and further more was a 1,9cm/0.75” thick deck although the steering gear and engine cylinders were better protected with 3,8cm/1.5”and5,1cm/2”. The gun turrets, barbettes and conning tower were protected by respectively 5.5” (sides)-2” (roof)-7.5” (faces, 6” and 25,4cm/10” (sides).

Note
1. Philip Watts (30 May 1846 Depford, Kent, England-15 March 1926, Chelsea, London, England).