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Trafalgar Class Battleship | colspan="2" align="center"| | | lign ="center" style="color: white; height: 30px; background: navy no-repeat scroll top left;"|General Characteristics | align ="center" style="color: white; height: 30px; background: navy no-repeat scroll top left;"|RN Ensign | | isplacement: | 11,940 tons | | ength: | 345 ft | | eam: | 73 ft | | raught: | 27 ft 6 inches | | ropulsion: | Two coal fired 3-cylinder steam engines, 6 cylindrical boilers, twin screws | | peed: | 16.7 knots maximum | | ange: | | | omplement: | | | rmament: | Four 13.5 inch 67 ton guns, six 4.7 inch quick firing guns | | rmour: | Partial 20 inch belt, tapering to 16 inches at bow and stern | The two Trafalgar-class battleships of the British Royal Navy were late nineteenth century ironclad warships. Both were named after naval battles won by the British during the Napoleonic wars under the command of Admiral Nelson. Laid down in 1886, they were designed to be improved versions of the Admiral and Victoria classes, having a greater displacement to allow for improved protection. However they sacrificed a full armoured belt for greater thickness amidships in a partial belt. They were originally intended to have a secondary armament eight 5 inch guns but this was changed to six quick firing 4.7 inch guns for use against attacking torpedo boats, which led to a weight increase of 60 tons, partly due to the increased amount of ammunition carried. This was one of the changes which led to the vessels being 600 tons overweight, causing an increase in draught of a foot. They were the last class of low freeboard battleships built for the Royal Navy. They had favoured this design for several years because they felt that it reduced the size of the target that would be hit by gunfire in a battle and the smaller hull area allowed thicker armour. However the consequence of having a freeboard of only 15 feet or so were that the vessels were unable to cope with very rough seas, although this was mitigated by their spending most of their active service in the relatively calm Mediterranean. When they were built, many observers over-estimated the vulnerability of large ships to torpedoes and the perceived inability to avoid them, which made them believe that large warships would inevitably be replaced by smaller, less vulnerable, and less valuable, vessels. For example, the parliamentary secretary of the Admiralty told Parliament in 1886 that this class represented "the last ironclads of this large type that will ever be built by this or any other country". In fact it took the development of effective naval aircraft able to carry torpedoes in the years immediately preceeding the Second World War nearly fifty years later to finally make this true. This class was followed by the very successful high freeboard Royal Sovereign class. References - D. K. Brown, Warrior to Dreadnought, Warship Development 1860-1906, ISBN 1840675292
- John Beeler, Birth of the Battleship, British capital ship design 1870-1881, ISBN 1861761678
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