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.
HMS Trident was a British T class submarine built by Cammell Laird, Birkenhead. She was laid down on 12 January 1937 and was commissioned on 1 October 1939. HMS Trident was part of the first group of T class submarines.
HMS Sickle was a third-batch S-class submarine built for the Royal Navy during World War II. Completed in 1942, she made her initial war patrol off the Norwegian coast. Sickle then sailed to Gibraltar, from where she conducted one patrol, then to Algiers, French North Africa. From 10 May to 10 October, the boat patrolled the Gulf of Genoa five times and sank a German submarine as well as three minesweepers and an escort ship. She then moved to Beirut, French Lebanon, and conducted two patrols in the Aegean Sea, sinking three caïques and a merchant ship, in addition to landing resistance operatives in Greece.
HMS Rorqual (N74) was a British mine-laying submarine, one of the six ships of the Grampus class of the Royal Navy. She was built by Vickers Armstrong, Barrow and launched 27 July 1936. She served in the Second World War in the Mediterranean and in the far east. She was the only Grampus-class submarine to survive the war, and she is considered the most successful minelaying submarine of World War II, sinking 57,704 GRT of enemy shipping, 35,951 of which through her mines.
HMS Tetrarch (N77) was a T-class submarine of the Royal Navy. She was laid down by Vickers Armstrong, Barrow and launched in November 1939.
HMS Torbay (N79) was a T-class submarine of the Royal Navy. She was laid down at Chatham Dockyard and launched on 9 April 1940.
HMS Trooper (N91) was a T-class submarine of the Royal Navy. She was laid down by Scotts, Greenock and launched in March 1942.
HMS Taurus was a Second World War T-class submarine, built by Vickers Armstrong, Barrow.
HMS Ultimatum (P34) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness, and part of the third group of that class. So far she has been the only ship of the Royal Navy to bear the name Ultimatum.
HMS Ultor (P53) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness, launched in 1942, and part of the third group of the class. So far she has been the only ship of the Royal Navy to bear the name Ultor.
HMS Unbroken (P42) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness; it was part of the third group of that class and has been the only vessel of the Royal Navy to bear the name.
HMS Universal (P57) was a Royal Navy U-class submarine built by Vickers-Armstrong at Newcastle upon Tyne. So far she has been the only ship of the Royal Navy to bear the name Universal.
HMS Unruffled was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness. So far she has been the only ship of the Royal Navy to bear the name Unruffled.
HMS Unruly was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness. So far she has been the only ship of the Royal Navy to bear the name Unruly.
HMS Unseen (P51) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness.
HMS Unshaken (P54) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness. She has been the only vessel of the Royal Navy to bear the name Unshaken.
HMS Unswerving (P63) was a Royal Navy U-class submarine built by Vickers-Armstrong. So far she has been the only ship of the Royal Navy to bear the name Unswerving.
HMS Untiring (P59) was a Royal Navy U-class submarine built by Vickers-Armstrong. So far she has been the only ship of the Royal Navy to bear the name Untiring. After the war, she was loaned to the Greek Navy and renamed Xifias (Y-10).
HMS Upstart (P65) was a Royal Navy U-class submarine built by Vickers-Armstrong. So far she has been the only ship of the Royal Navy to bear the name Upstart. After the war, she was loaned to the Greek Navy and renamed Amfitriti.
HMS P47 was a Royal Navy U-class submarine built by Vickers-Armstrong. She was transferred to the Royal Netherlands Navy before completion and renamed HNLMS Dolfijn.
United Kingdom
