HMS Trenchant (P331)

HMS Trenchant (P331) was a British T class submarine of the Second World War built at Chatham Dockyard.

HMS Trenchant
History
United Kingdom
NameTrenchant
BuilderChatham Dockyard
Laid down9 May 1942
Launched24 March 1943
Commissioned26 February 1944
FateSold to be broken up for scrap on 1 July 1963. Scrapped at Faslane
Badge
General characteristics
Class and typeBritish T class submarine
Displacement
  • 1,290 tons surfaced
  • 1,560 tons submerged
Length276 ft 6 in (84.28 m)
Beam25 ft 6 in (7.77 m)
Draught
  • 12 ft 9 in (3.89 m) forward
  • 14 ft 7 in (4.45 m) aft
Propulsion
  • Two shafts
  • Twin diesel engines 2,500 hp (1.86 MW) each
  • Twin electric motors 1,450 hp (1.08 MW) each
Speed
  • 15.5 knots (28.7 km/h) surfaced
  • 9 knots (20 km/h) submerged
Range4,500 nautical miles at 11 knots (8,330 km at 20 km/h) surfaced
Test depth300 ft (91 m) max
Complement61
Armament
  • 6 internal forward-facing 21 inch (533 mm) torpedo tubes
  • 2 external forward-facing torpedo tubes
  • 2 external amidships rear-facing torpedo tubes
  • 1 external rear-facing torpedo tube
  • 6 reload torpedoes
  • QF 4 inch (100 mm) deck gun
  • 3 anti aircraft machine guns

On completion she was given over to the crew of HMS Thrasher whose submarine was due for a refit.

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