Holland 1 is the first submarine commissioned by the Royal Navy. The first in a six-boat batch of the Holland-class submarine, she was lost in 1913 while under tow to be scrapped following her decommissioning. Recovered in 1982, she was put on display at the Royal Navy Submarine Museum, Gosport. Her battery bank found in the boat was discovered to be functional after being cleaned and recharged.
Holland 3 was a Royal Navy submarine launched on 9 May 1902. The submarine was designed by Vickers at Barrow-in-Furness and was laid down on 4 February 1901. The submarine was commissioned on 1 August 1902. Holland 3 sank in trials in 1911 and was then sold on 7 October 1913.
Holland-class submarine No 4 was built by Vickers, at Barrow in Furness, Cumbria, United Kingdom, and was laid down in 1902. She was launched on 23 May 1902, and successfully concluded deep sea trials in the Irish Sea in August 1902. She was commissioned into the Royal Navy on 2 August 1903. In 1905 the submarine was fitted with a conning tower. She was the only member of the Holland-class to be given this modification. She was stricken in 1912. She foundered on 3 September 1912. She was salvaged and used as a gunnery target on 17 October 1914.
Holland 6 was originally a Holland-class submarine. But Holland 6 had many improvements made to her, and she was classed as the first of a class of 13 boats called the British A-class submarine.
HMS Thule was a British submarine of the third group of the T class. She was built as P325 at Devonport Dockyard, and launched on 22 October 1942. So far she has been the only ship of the Royal Navy to bear the name Thule, after Thule, the mythological name for a northern island.
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.
HMS Turpin was one a group three T-class submarines of the Royal Navy which entered service in the last few months of World War II. So far she has been the only ship of the Royal Navy to be named Turpin. She was sold to Israel in 1965 and commissioned into the Israeli Sea Corps in 1967 as INS Leviathan.
HMS Truncheon was a group three T Class submarine of the Royal Navy which entered service in the last few months of World War II. So far she has been the only ship of the Royal Navy to be named Truncheon. She was sold to Israel in 1968 and commissioned into the Israeli Sea Corps as INS Dolphin.
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 Varangian was a British built U class submarine, a member of the third group of that class to be built. The submarine carried out patrols in the Norwegian Sea and was also used in a training role. She was broken up at Gateshead in 1949. Her ship's bell is in the possession of the Royal Navy Submarine Museum in Gosport, United Kingdom.
HMS P39 was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness.
HMS H34 was a British H class submarine built by Cammell Laird, Birkenhead. The vessel was laid down on 20 November 1917 and was commissioned on 10 September 1919. She had a complement of twenty-two crew members.
HMS H33 was a British H class submarine built by Cammell Laird, Birkenhead. She was laid down on 20 November 1917 and commissioned on 17 May 1919.
HMS H31 was a British H class submarine built by Vickers Limited, Barrow-in-Furness. She was laid down on 19 April 1917 and was commissioned on 21 February 1919.
HMS H29 was a British H class submarine built by Vickers Limited, Barrow-in-Furness. She was laid down on 19 March 1917 and was commissioned on 14 September 1918.
HMS H22 was a British H class submarine built by Vickers Limited, Barrow-in-Furness, as part of the Batch 3 H class submarines. She was launched on 14 November 1917 and was commissioned on 6 November 1918.
HMS H23 was a British H class submarine built by Vickers Limited, Barrow-in-Furness as part of the Batch-3 H class submarine. She was launched on 29 January 1918 and was commissioned on 25 May 1918. She had a complement of 22 crew members.
HMS H24 was a British H-class submarine built by Vickers Limited, Barrow-in-Furness, as part of the Batch 3 H-class submarines. She was launched on 14 November 1917 and was commissioned on 30 April 1918.
HMS H25 was a British H class submarine built by Vickers Limited, Barrow-in-Furness, as part of the Batch 3 H class submarines. She was launched on 27 April 1918 and was commissioned on 16 July 1918. It had a complement of twenty-two crew members.
HMS H26 was a British H class submarine built by Vickers Limited, Barrow-in-Furness, as part of the Batch 3 H class submarines. She was launched on 15 November 1917 and was commissioned on 29 December 1918. It had a complement of twenty-two crew members.
