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Thursday 21 January 2016

Brazilian dreadnought battleship Rio de Janeiro 1911-1913 (Turkish Sultan Osman-1 Evvel 1913-1914 and British HMS Agincourt 1914-1924.


Laid down at the shipyard of Armstrong, Newcastle upon Tyne, England with yard number 702 on 14 September 1911, launched on 22 January 1913, for sale since October 1913 and sold to the Ottoman Empire for 2.750.000 pound sterling on 28 December 1913. Estimated building costs were 14.500.000. Brazil sold when finances became a problem as a result of the rubber boom collapse while on the other the relations with her rival Argentina improved. The original idea was that she was to be largest and most powerful warship of her time according to a statement of the Brazilian government on 6 August 1910. After protests was she redesigned and the original planned displacement of 32.000 tons (normal) reduced to 27.500 tons (normal).

Renamed by Turkey in Sultan Osman-l executed she her trials in July 1914, completed in August 1914 and seized by the British government when the first World War broke out.

In British service renamed in HMS Agincourt although she was now modified for instance by removing the flying bridge over the two centre turrets. Working up until 7 September 1914, in the reserve at Rosyth, Scotland in March 1919, Brazil was despite serious considerations finally not interested in buying her when she was offered for 1 million pound sterling in 1921 and she was to be disposed since April 1921, used for experiments in 1921, sold to be broken up as a result of the Washington Navy Treatt on 19 December 1922 but nor earlier broken up as in the end of 1924.

Technical specifications white in service as HMS Agincourt.
With a displacement of 28.300 tons/27.840 long tons (load)-31.360 tons/30.860 long tons (deep load) were her dimensions 20,4 x 27,1 x 9,1 metres or 671.6 x 89 x 29.10 feet. The 4 shafts 4 Parsons steam turbines and 22 Babcock&Wilcox water tube boilers supplying 34.000 ship allowing a speed of 22 knots or with a speed of 10 knots a range of 7.000 nautical miles. Coal bunker capacity 1.500-3.300 (maximum) tons and 630 ton fuel oil. To increase the burn rate of the coal was fuel oil sprayed on it. The crew numbered in 1917 1.268 men. The armour consisted of a 22,9cm/9” thick belt, a 2,6-6,4cm/1-2.5” thick deck with the barbettes, 6,4-15,2cm/2.5-6” thick bulkheads and turrets and conning tower protected by respectively 5,1-22,9cm/2-9”, 20,3-30,6cm/8-12” and 30,5cm/12“. The armament consisted of 7x2-30,5cm/12”breech loading Mk XIII guns, 20x1-15,2cm/6” breech loading Mk XIII guns, 10x1-7,6cm/3” guns and 3x53,3cm/21” torpedo tubes.