war, the ships were assigned to the Northern Patrol. On 11 December 1917, the sisters and four destroyers were assigned to patrol the convoy route between Lerwick and Norway, but the Germans successfully destroyed a convoy off the Norwegian coast on the following day and returned home without being spotted. The British ships were only able to rescue survivors and escort the sole surviving ship from the convoy, the crippled destroyer , back to Scapa Flow. The sisters were paid off in 1919, although Shannon temporarily became a training ship before the two were sold for scrap in 1920. Shannon was not actually broken up until January 1923. Notes Footnotes Bibliography External links The Dreadnought Project Technical details of the ships. Cruiser classes Ship classes of the Royal Navy