HMS Astute (P447) was an Amphion-class submarine. Her keel was laid down by Vickers at Barrow-in-Furness. She was launched in 1944 and commissioned in 1945.
USS H-6 (SS-149) was a H-class submarine originally built for the Imperial Russian Navy. Six of these were not delivered pending the outcome of the Russian Revolution of 1917 before being purchased by the United States Navy on 20 May 1918.
HMS Alaric (P441), was an Amphion-class submarine of the Royal Navy, built by Cammell Laird laid down in May 1944 and launched 18 February 1946.
HMS Alcide (P415), was an Amphion-class submarine of the Royal Navy, built by Vickers-Armstrongs and launched 12 April 1945.
HMS Alderney (P416/S66), was an Amphion-class submarine of the Royal Navy, built by Vickers-Armstrongs at Barrow and launched 25 June 1945 by Mrs Molly Wallis, wife of Sir Barnes Wallis. She was the 12th of the class and was scrapped in 1972.
HMS Ambush (P418/S68/S18), was an Amphion-class submarine of the Royal Navy, built by Vickers Armstrong and launched 24 September 1945.
HMS Andrew (P423/S23/S63), was an Amphion-class submarine of the Royal Navy, built by Vickers Armstrong and launched on 6 April 1946.
HMS Amphion (P439), was an Amphion-class submarine of the Royal Navy, built by Vickers Armstrong and launched 31 August 1944.
HMS Auriga (P419/S69), was an Amphion-class submarine of the Royal Navy, built by Vickers Armstrong and launched 29 March 1945.
HMS Anchorite (P422/S22), was an Amphion-class submarine of the Royal Navy, built by Vickers Armstrong and launched 22 January 1946.
HMS Artful (P456), was an Amphion-class submarine of the Royal Navy, built by Scotts Shipbuilding and Engineering Company of Greenock and launched 22 May 1944.
HMS Artemis (P449) was an Amphion-class submarine of the Royal Navy, built by Scotts Shipbuilding & Engineering Co. of Greenock and launched 28 August 1946. The submarine sank while refueling in 1971, was raised and sold for breaking up in 1972.
HMS K2 was the second of the K class submarines and was built at HM Dockyard, Portsmouth, England. She was laid down on 13 November 1915 and was commissioned in May 1917 one year before the end of World War I. In January 1917, K2 was damaged by an explosion and fire during her first diving trials. On 11 January 1924, it collided with K12 as they departed Portland Harbour. K2 smashed a hole in the forward casing of K12 and buckled her bows for about 6 feet (1.8 m).
HMS H7 was a British H-class submarine built by the Canadian Vickers Co, Montreal, Quebec, Canada. She was laid down on 19 May 1915 and was commissioned in June 1915. HMS H7 was sold in 1921. It had a complement of twenty-two crew members, a length of 171 feet (52 m), and a surfaced range of 1,600 nautical miles at 10 knots.
HMS H9 was a British H-class submarine built by the Canadian Vickers Co., Montreal. She was laid down on an unknown date and commissioned in June 1915. Launched by J. Grace Gardner at Montréal on 22 May 1915.
HMS H10 was a British H-class submarine built by the Canadian Vickers Co., Montreal. She was laid down on an unknown date and was commissioned in June 1915.
HMS Saga was a S-class submarine of the third batch built for the Royal Navy during World War II. She survived the war and was sold to Portugal.
HMS Sea Scout was a S-class submarine of the third batch built for the Royal Navy during World War II. She survived the war and was sold for scrap in 1965.
HMS Seneschal was a S-class submarine of the third batch built for the Royal Navy during World War II. She survived the war and was sold for scrap in 1965.
HMS Sentinel was a S-class submarine of the third batch built for the Royal Navy during World War II. She was not completed until after the war and was sold for scrap in 1962.
United Kingdom