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 Tribune was a British T class submarine built by Scotts, Greenock. She was laid down on 3 March 1937 and was commissioned on 17 October 1939. HMS Tribune was part of the first group of T class submarines.
HMS Stubborn was an S-class submarine of the Royal Navy, and part of the Third Group built of that class. She was built by Cammell Laird and launched on 11 November 1942. So far she has been the only ship of the Royal Navy to bear the name Stubborn.
HMS Truant (N68) was a T-class submarine of the Royal Navy. She was laid down by Vickers Armstrong, Barrow and launched on 5 May 1939.
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 Ursula was a U-class submarine, of the first group of that class constructed for the Royal Navy. The submarine entered service in 1938 and saw action during the Second World War in the North and Mediterranean Seas. In 1944, Ursula was transferred to the Soviet Navy and renamed V-4. She remained in Soviet service until 1950 when the submarine was returned to the United Kingdom and was sold for scrap in May 1950.
HMS Una was a British U-class submarine, of the second group of that class, built at Chatham Dockyard. She was laid down on 7 May 1940 and was commissioned on 27 September 1941.
HMS Utmost was a British U class submarine, of the second group of that class, built by Vickers Armstrong, Barrow-in-Furness. She was laid down on 2 November 1939 and was commissioned on 17 August 1940. So far she has been the only ship of the Royal Navy to bear the name Utmost.
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 Unbending (P37) 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 Unbending.
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. She entered service as P42 and was renamed Unbroken on 1 February 1943.
HMS Unison (P43) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness, and part of the third group of that class. She is the only craft of the Royal Navy to have borne the name Unison. Prior to receiving the name, she carried the pennant number P43 and was unofficially known as Ulysses. She was renamed Unison in 1943.
HMS United (P44) 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 United.
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 Unsparing (P55) 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 Unsparing.
HMS Uproar (P31) 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 Uproar. She was originally named P 31, renamed Ulleswater in February 1943 and finally renamed Uproar in April 1943.
United Kingdom
