HMS Ocelot (S17) is an Oberon-class diesel-electric submarine which was operated by the Royal Navy.
The River class was a class of 151 frigates launched between 1941 and 1944 for use as anti-submarine convoy escorts in the North Atlantic. The majority served with the Royal Navy and Royal Canadian Navy (RCN), with some serving in the other Allied navies: the Royal Australian Navy (RAN), the Free French Naval Forces, the Royal Netherlands Navy and, post-war, the South African Navy.
HMS P33 was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness.
HMS P32 was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness.
The F-class submarine was built for the Royal Navy as a coastal submarine based on the doubled hulled V-class submarine with very few minor improvements. The only important improvement was the addition of a stern torpedo tube. The F class were ordered as a successor to the E-class submarine, but only three were built out of the ten ordered, the first F1 at Chatham.
HMS Scorcher 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 18 December 1944. So far she has been the only ship of the Royal Navy to bear the name Scorcher. She was launched by Thomas Beacham, a Foreman Driller employed by Cammell Laird.
HMS Tempest (N86) was a T-class submarine of the Royal Navy. She was laid down by Cammell Laird & Co Limited, Birkenhead and launched in June 1941, serving in the Mediterranean theatre until 13 February 1942, when she was sunk by the Regia Marina while on patrol the Gulf of Taranto.
HMS Tudor was a British submarine of the third group of the T class. She was built as P326 at Devonport Dockyard, and launched on 23 September 1942. So far she has been the only ship of the Royal Navy to bear the name Tudor, after the Tudor period or Tudor dynasty.
HMS Taciturn was a British submarine of the third group of the T class. built by Vickers Armstrong, Barrow and launched on 7 June 1944. So far she has been the only ship of the Royal Navy to bear the name Taciturn.
HNLMS Tijgerhaai (P336) was a Zwaardvisch-class submarine of the Royal Netherlands Navy during and after World War II. She was originally ordered as HMS Tarn (P326), a British T-class submarine, built by Vickers Armstrong, Barrow, but never saw service under that name. She would have been the only ship of the Royal Navy to bear the name Tarn.
HMS Unity was a U-class submarine, of the first group of that class constructed for the Royal Navy. The submarine entered service in 1938 and performed war patrols during the Second World War. On 29 April 1940, Unity was accidentally rammed and sunk in Blyth, Northumberland's harbour.
HMS Unbeaten was a U-class submarine, of the second group of that class, built by Vickers Armstrong, Barrow-in-Furness. She was laid down on 22 November 1939 and was commissioned on 10 November 1940. So far she has been the only ship of the Royal Navy to bear the name Unbeaten.
HMS Undaunted 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 December 1939 and was commissioned on 30 December 1940.
HMS Unique was a U-class submarine of the Royal Navy, of the second group of that class, built by Vickers Armstrong, Barrow-in-Furness. She was laid down on 30 October 1939 and was commissioned on 27 September 1940.
HMS Usk 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 6 November 1939 and was commissioned on 11 October 1940.
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 Usurper (P56) was a Royal Navy U-class submarine built by Vickers-Armstrongs at High Walker. So far, she has been the only ship of the Royal Navy to bear the name Usurper.
HMS P39 was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness.
HMS H52 was a British H class submarine built by HM Dockyard, Pembroke Dock. She was laid down on an unknown date, launched on 31 March 1919 and commissioned on 16 December 1919, the last Welsh-built fighting ship to enter the British Royal Navy.
HMS Untamed was a Royal Navy U-class submarine built by Vickers-Armstrongs, High Walker. So far, she has been the only ship of the Royal Navy to bear the name Untamed. On 30 May 1943, she sank during a training exercise in the Firth of Clyde with the loss of all 35 of her crew. Untamed was subsequently salvaged and renamed HMS Vitality, another unique name, and lasted until 1946 when she was scrapped.
United Kingdom
