HMS 
              Obdurate was a 'O' class Destroyer (G39) built by Wiliam Denny, 
              of Dumbarton, she was laid down 25th April 1940, launched on 19th 
              February 1942 and decommisioned in 1964. She had a displacement 
              of 1,540 tons, lenght 345 feet and carried a complement of 175 men. 
              Her maximum speed was 37 knots powered by geared trubines with 2 
              shafts; power being 40,000 horse-power. She served in the Arctic 
              during 1942-1944, as well as the Barrents Sea 1942 and the Atlantic 
              1943.
            See 
              www.naval-history.net 
              for more details