HMS K7
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K7 was a K class submarine built by HM Dockyard, Devonport. She was laid down on the 8th November 1915. She was commissioned in July 1917. K7 was invovled in the accident with the 4th Light Cruiser Squadron. She was also invovled in the 'battle of May island' exercise. K7 was damaged in the exercise by running over the sinking K4. K7 was sold on the 9th September 1921 at Sunderland.
REFERENCE submarines, war beneath the waves, from 1776 to the present day. By Robert Hutchinson.