HMS Triumph
History
United Kingdom
Name	Triumph
Builder	Vickers Armstrong, Barrow
Laid down	19 March 1937
Launched	16 February 1938
Commissioned	2 May 1939
Identification	Pennant number N18
Fate	Sank December 1941–January 1942
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 9 knots (16.6 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	64
Armament	6 internal forward-facing 21-inch (533 mm) torpedo tubes 4 external forward-facing torpedo tubes 6 reload torpedoes 1 x 4-inch (102 mm) deck gun

HMS Triumph (N18) was a T-class submarine of the Royal Navy. She was laid down by Vickers at Barrow-in-Furness and launched in 1938. The boat was lost in transit in 1942, with a crew of 64, and its fate was unknown until the sunken boat was rediscovered in June 2023.

Career

At the onset of the Second World War, Triumph was a member of the 2nd Submarine Flotilla. From 26–29 August 1939, the flotilla deployed to its war bases at Dundee and Blyth. ^[1]

Home waters

On 26 December 1939, Triumph hit a German mine in the North Sea. She lost 18 feet (5.5 m) of her bow when it was blown off. Her pressure hull was also damaged, but her torpedoes did not detonate. She managed to limp home under the protection of fighter aircraft and destroyers, and was under repair at Chatham Dockyard until 27 September 1940.

Mediterranean

Operating in the Mediterranean from early 1941, Triumph sank the Italian merchants Marzamemi, Colomba Lofaro, Ninfea, Monrosa, the Italian auxiliary patrol vessels V 136 / Tugnin F, Valoroso, V 190 / Frieda and V 137 / Trio Frassinetti, the Italian tug Dante de Lutti and salvage vessel Hercules, the German merchant Luvsee, and the Greek sailing vessels Panagiotis and Aghia Paraskevi. She also damaged the Italian armed merchant cruiser Ramb III, the Italian tankers Ardor and Poseidone, the Italian merchant Sidamo and the German merchant Norburg

In June 1941 she sank the Italian submarine Salpa near northern Egypt.

Sinking and discovery

Triumph was also used for covert operations, such as landing agents in German-occupied areas. She was planned to be used as a rendezvous for commandos in Operation Colossus, but this had to be cancelled when the landing site became untenable. She undertook one such mission in December 1941, in which she successfully landed agents at Antiparos, Greece on the 30th. She failed to pick up the agents as scheduled on 9 January, and was lost probably to a collision with a mine. All sixty-four crew were lost. ^{[2] [3]} A memorial plaque to the boat and her lost crew members was placed in All Saints' Church, Lindfield, West Sussex.

In June 2023 Greek researchers led by Kostas Thoktaridis discovered the lost submarine in the Aegean Sea at a depth of 203 metres. The submarine rests on the seabed of the open sea with an 8-degree starboard list, dozens of kilometres away from the shores of Sounion. The lowered periscopes and sealed hatches testify that the Triumph was in a deep dive during its final moments. The diving planes and rudder are in a straight position, indicating that it was at a steady depth. ^[4]

References

Citations

Sources

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN  978-1-86176-281-8.
• Frampton, Viktor & Domenico, Francesco de (2015). "Question 13/51: British Submarine Actions of WW II". Warship International. LII (2): 116–118. ISSN  0043-0374.
• Hutchinson, Robert (2001). Jane's Submarines: War Beneath the Waves from 1776 to the Present Day. London: HarperCollins. ISBN  978-0-00-710558-8. OCLC  53783010.
• Rohwer, Jürgen (2005). Chronology of the War at Sea 1939–1945: The Naval History of World War Two (Revised & Expanded ed.). Annapolis, Maryland: Naval Institute Press. ISBN  1-59114-119-2.