Design
''Defiance'' was a development of the Renown class. The second pair of Renowns, and , had a modified, finer stern run. ''Defiance'' was originally laid down as to the same plan as ''Atlas'', but a new plan dated 8 October 1858 was prepared giving ''Defiance'' a lengthened bow. ''Defiance'' was the last ship to use the midsection design that Isaac Watts created for HMS ''James Watt''.Career
Her trials off Plymouth on 5 February 1862 were conducted when she was neither masted nor stored. The trial speed of was worse than the similar trials of ''Atlas'' and ''Anson'' . However ''Defiance's'' lack of sea service means that there can be no certainty as to whether her design was an improvement on ''Atlas''.Notes
Some of the timbers, including 6 oak pillars, the captain's fire surround, two cross members and some decking was used in the renovation of Furzehatt House in Plymstock that was owned and occupied by the Castle family (this account was relayed to me by Major Bunny Castle (retired) who came over from NZ on holiday to see his childhood home.References
* Lambert, Andrew ''Battleships in Transition, the Creation of the Steam Battlefleet 1815-1860'', Conway Maritime Press, 1984.External links