HMS Trespasser

	HMS Trespasser in September 1942 at Barrow
History
United Kingdom
Name	HMS Trespasser
Builder	Vickers-Armstrongs, Barrow
Laid down	8 September 1941
Launched	29 May 1942
Commissioned	25 September 1942
Fate	Scrapped in September 1961
Badge
General characteristics
Class & type	British T class submarine
Displacement	1,290 tons surfaced; 1,560 tons submerged;
Length	276 ft 6 in (84.28 m)
Beam	25 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; Nine knots (20 km/h) submerged;
Range	4,500 nautical miles at 11 knots (8,330 km at 20 km/h) surfaced
Test depth	300 ft (91 m) max
Complement	61
Armament	Six internal forward-facing 21-inch (533 mm) torpedo tubes; Two external forward-facing torpedo tubes; Two external amidships rear-facing torpedo tubes; One external rear-facing torpedo tubes; Six reload torpedoes; 1 x 4-inch (102 mm) deck gun;

HMS Trespasser was a British submarine of the third group of the T class. She was built as P312 by Vickers-Armstrongs, Barrow, and launched on 29 May 1942. So far she has been the only ship of the Royal Navy to bear the name Trespasser.

She was one of only two T-class submarines completed without an Oerlikon 20 mm anti-aircraft gun, the other being HMS P311.