The Vanguard class was designed by Sir William Symonds, Surveyor of the Navy, with each ship built with a slightly different hull shape to evaluate their speed and handling characteristics. Centurion had a length at the gundeck of 190 feet 8 inches (58.1 m) and 153 feet 5 inches (46.8 m) at the keel. She had a beam of 57 feet 1 inch (17.4 m), a draught of 18 feet 10 inches (5.7 m) and a depth of hold of 23 feet 4 inches (7.1 m). The ship's tonnage was 2,589 83⁄94 tons burthen.[1] The Vanguards had a wartime crew of 720 officers and ratings.[2]
The Vanguard class ships of the line were armed with twenty 32-pounder (56 cwt)[Note 1] cannon and two 68-pounder carronades on her lower gundeck, twenty-eight 32-pounder (50 cwt) cannon and another pair of 68-pounder carronades on the upper gundeck. On her quarterdeck were fourteen 32-pounder (42 cwt) cannon and on the forecastle deck were eight more 32-pounder (42 cwt) cannon.[2]
Modifications
When Centurion was ordered to be modified for steam propulsion in 1854, she was fitted with a two-cylinder horizontal steam engine of 400 nominal horsepower that drove a single propeller shaft. On trials the engine produced 1,255 indicated horsepower (936 kW) which gave the ship a speed of 8.5 knots (15.7 km/h; 9.8 mph).[3]
Construction and career
Centurion was ordered from Pembroke Dockyard on 18 March 1839 and laid down the following July. She was launched on 2 May 1844 and completed on 10 June. The ship was not fitted out and Centurion was placed in ordinary. Her construction cost £57,386. Between September 1854 and November 1855, she was fitted with steam propulsion.[1]
Centurion was sold for scrap on 19 March 1870,[4] for a price of £8200.[5]
Notes
^"Cwt" is the abbreviation for hundredweight, 56 cwt referring to the weight of the gun.
Lyon, David & Winfield, Rif (2004). The Sail & Steam Navy List: All the Ships of the Royal Navy 1815–1889. London: Chatham Publishing. ISBN1-86176-032-9.