HMS Acheron (P411)

HMS Acheron (P411) was an Amphion-class submarine of the Royal Navy, laid down 26 August 1944, launched 25 March 1947 and completed in 1948.

For other ships with the same name, see HMS Acheron.

History
United Kingdom
NameHMS Acheron
BuilderHM Dockyard, Chatham
Laid down26 August 1944
Launched25 March 1947
Commissioned17 April 1948
DecommissionedFebruary 1971
IdentificationP411
FateSold for scrap, 1972
General characteristics
Class and typeAmphion-class submarine
Displacement1,360/1,590 tons (surface/submerged)
Length293 ft 6 in (89.46 m)
Beam22 ft 4 in (6.81 m)
Draught18 ft 1 in (5.51 m)
Propulsion2 × 2,150 hp (1,600 kW) Admiralty ML 8-cylinder diesel engine, 2 × 625 hp (466 kW) electric motors for submergence driving two shafts
Speed
  • 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 depth350 ft (110 m)
Complement60
Armament
  • 6 × 21 inch (533 mm) (2 external) bow torpedo tubes, 4 × 21 in (2 external) stern torpedo tubes, containing a total of 20 torpedoes
  • Mines: 26
  • 1 × 4 in (102 mm) main deck gun, 3 × 0.303 machine gun, 1 × 20 mm AA Oerlikon 20 mm gun
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