HMS Tuna (N94)

HMS Tuna approaching the submarine depot ship HMS Forth in Holy Loch (Scotland) in August 1943
History
United Kingdom
Name	HMS Tuna
Owner	Royal Navy
Ordered	9 December 1937
Builder	Scotts, Greenock
Laid down	13 June 1938
Launched	10 May 1940
Commissioned	1 August 1940
Identification	Pennant number N94
Honours and awards	North Sea 1939-45 Biscay 1940-45
Fate	Sold to broken up, 19 December 1945 Scrapped in June 1946
Badge
General characteristics
Class and type	British T class submarine
Displacement	1,090 tons surfaced 1,575 tons submerged
Length	275 ft (84 m)
Beam	26 ft 6 in (8.08 m)
Draught	16.3 ft (5.0 m)
Propulsion	Two shafts Twin diesel engines 2,500 hp (1.86 MW) each Twin electric motors 1,450 hp (1.08 MW) each
Speed	15.25 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	59
Armament	Six internal forward-facing 21-inch (533 mm) torpedo tubes Four external forward-facing torpedo tubes Six reload torpedoes 1 x 4-inch (102 mm) deck gun

HMS Tuna (N94) was a T-class submarine of the Royal Navy. She was laid down by Scotts, Greenock (in Scotland) and launched on 10 May 1940. She was equipped with German-built MAN Diesel engines and spent her career in World War II in western European waters, in the North Sea and off the west coast of France, and most famously taking part in Operation Frankton.

The raid on Bordeaux harbour was later dramatised in the 1955 film The Cockleshell Heroes starring Trevor Howard. Tuna also took part in many war patrols and her crew received service medals for the boat's destruction of several U-boats.