Mooring Ship Fastens Wire To Sunken Submarine - The scene in Portland Harbour from the air to-day (Thursday) as the mooring vessel Moordale (top right) has a line secure to the stern of the submarine Sidon, which sank earlier to-day after an explosion while preparing to sail. The larger vessel is the depot ship Maidstone. It is feared that 13 officers and men died in the Sidon. June 16, 1955. (Photo by Reuterphoto).