HMS Acheron (P411)
HMS Acheron was an of the Royal Navy, laid down 26 August 1944, launched 25 March 1947 and completed in 1948.
Design
Like all s, Acheron had a displacement of when at the surface and while submerged. She had a total length of, a beam of, and a draught of. The submarine was powered by two Admiralty ML eight-cylinder diesel engines generating a power of each. She also contained four electric motors each producing that drove two shafts. She could carry a maximum of of diesel, although she usually carried between.The submarine had a maximum surface speed of and a submerged speed of. When submerged, she could operate at for or at for. When surfaced, she was able to travel at or at. Acheron was fitted with ten torpedo tubes, one QF 4 inch naval gun Mk XXIII, one Oerlikon 20 mm cannon, and a .303 British Vickers machine gun. Her torpedo tubes were fitted to the bow and stern, and she could carry twenty torpedoes. Her complement was sixty-one crew members.
Service history
Acheron took part in the Coronation Review of the Fleet to celebrate the Coronation of Queen Elizabeth II in 1953. she carried out 'General Naval Service' around the UK until the end of 1964. A geomagnetic storm in February 1956, during solar cycle 19, interfered with radio communications and prompted a search for the submarine after she lost radio contact. From August to December 1959, she took part in a cruise to South Africa and Pakistan.She was decommissioned and broken up in 1972 at the yard of J Cashmore of Newport.