HMS Alderney (P416)

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.

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

HMS Alderney at Plymouth Sound in 1954.
History
United Kingdom
NameAlderney
BuilderVickers-Armstrongs, Barrow-in-Furness
Laid down6 February 1945
Launched25 June 1945
Commissioned10 December 1946
DecommissionedNovember 1967
IdentificationPennant number P416
FateSold to be broken up for scrap on 6 June 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
Speed18.5 kn (34.3 km/h) surface, 8 kn (15 km/h) submerged
Range
  • 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 tube, 4 × 21 in (2 external) stern torpedo tube, 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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