HMS Sumar

HMS Sumar (FY1003) was a yacht purchased by the Admiralty of the United Kingdom during the Second World War converted to an armed yacht and equipped for anti-submarine warfare, replacing HMS Castle Harbour (which had been re-assigned to the Mediterranean in 1942) as the Royal Naval Examination Service vessel at Bermuda. She was based at the Royal Naval Dockyard, Bermuda until the end of the war.