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HMS Artemis (P449)

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Title: HMS Artemis (P449)  
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Subject: HMS Artemis, Cold War submarines of the United Kingdom, July 1971, HMS Ace (P414), HMS Alcide (P415)
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HMS Artemis (P449)

Royal Navy Ensign
Ordered: Very late in World War II
Builder: Scotts of Greenock
Laid down: 28 February 1944
Launched: 28 August 1946
Commissioned: 15 August 1947
Fate: Sank 1 July 1971. Sold to Pounds of Portsmouth for scrap in 1972
General characteristics
Displacement: 1,360/1,590 tons (surface/submerged)
Length: 293 ft 6 in (89.46 m)
Beam: 22 ft 4 in (6.81 m)
Draught: 18 ft 1 in (5.51 m)
Propulsion: 2 × 2,150 hp Admiralty ML 8-cylinder diesel engine, 2 × 625 hp electric motors for submergence driving two shafts
  • 18.5 kn (34.3 km/h) surface, 8 kn (15 km/h) submerged
  • 10,500 nmi (19,400 km) at 11 kn (20 km/h) surfaced
  • 16 nmi (30 km) at 8 kn (15 km/h) or 90 nmi (170 km) at 3 kn (5.6 km/h) submerged
Test depth: 350 ft (110 m)
Complement: 5 officers 55 enlisted
  • 6 × 21" (2 external) bow torpedo tubes, 4 × 21" (2 external) stern torpedo tubes, containing a total of 20 torpedoes
  • Mines: 26
  • 1 × 4" main deck gun, 3 × 0.303 machine gun, 1 × 20 mm AA Oerlikon 20 mm gun

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.[1]

In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II.[2] On 1 July 1971 Artemis sank in 9 metres of water while moored at the shore establishment HMS Dolphin at Gosport during refuelling. The sub dipped by the stern (she was being prepared for fuelling using the aft externals) which filled and the sub sank.[3] She was raised on 6 July and decommissioned, sold to be broken up for scrap on 12 December 1971.


  • Design 1
  • Commanding officers 2
  • References 3
  • Publications 4
  • External links 5


Like all Amphion-class submarines, Artemis had a displacement of 1,360 tonnes (1,500 short tons) when at the surface and 1,590 tonnes (1,750 short tons) while submerged. It had a total length of 293 feet 6 inches (89.46 m), a beam length of 22 feet 4 inches (6.81 m), and a draught length of 18 feet 1 inch (5.51 m). The submarine was powered by two Admiralty ML eight-cylinder diesel engines generating a power of 2,150 horsepower (1,600 kW) each. It also contained four electric motors each producing 625 horsepower (466 kW) that drove two shafts.[4] It could carry a maximum of 219 tonnes (241 short tons) of diesel, although it usually carried between 159 and 165 tonnes (175 and 182 short tons).[4]

The submarine had a maximum surface speed of 18.5 knots (34.3 km/h; 21.3 mph) and a submerged speed of 8 knots (15 km/h; 9.2 mph).[5] When submerged, it could operate at 3 knots (5.6 km/h; 3.5 mph) for 90 nautical miles (170 km; 100 mi) or at 8 knots (15 km/h; 9.2 mph) for 16 nautical miles (30 km; 18 mi). When surfaced, it was able to travel 15,200 nautical miles (28,200 km; 17,500 mi) at 10 knots (19 km/h; 12 mph) or 10,500 nautical miles (19,400 km; 12,100 mi) at 11 knots (20 km/h; 13 mph).[4] Artemis was fitted with ten 21 inches (530 mm) torpedo tubes, one QF 4 inch naval gun Mk XXIII, one Oerlikon 20 mm cannon, and a .303 British Vickers machine gun. Its torpedo tubes were fitted to the bow and stern, and it could carry twenty torpedoes. Its complement was sixty-one crew members.[4]

Commanding officers

From To Captain
1953 1953 Lieutenant-Commander F E Ashmead-Bartlett RN
1964 1966 Lieutenant M J Hunt RN
1970 1970 Lieutenant-Commander T Austin RN


  1. ^ "Artemis". Retrieved 20 August 2015. 
  2. ^ Souvenir Programme, Coronation Review of the Fleet, Spithead, 15th June 1953, HMSO, Gale and Polden
  3. ^ "Account of the sinking". BBC. Retrieved 20 August 2015. 
  4. ^ a b c d Paul Akermann (1 November 2002). Encyclopedia of British Submarines 1901-1955. Periscope Publishing Ltd. p. 422.  
  5. ^ "Acheron class". World Naval Ships, Cranston Fine Arts. Retrieved 20 August 2015. 



External links

  • Boat veterans homepage
  • Pictures of HMS Artemis at MaritimeQuest
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