HMS H21
Submarine of the Royal Navy / From Wikipedia, the free encyclopedia
HMS H21 was a British H class submarine built by Vickers Limited, Barrow-in-Furness, as the first of the Batch 3 H class submarines. She was launched on 20 October 1917 and was commissioned on 28 January 1918. H21 was an improved design of the H class which produced a larger displacement and the latest 21 inch torpedo tubes replacing the old 18 inch torpedo tubes. This would be incorporated into all batch 3 H class submarines. HMS H21 was sold to John Cashmore Ltd on 13 July 1926 for scrapping at Newport.
Quick Facts History, United Kingdom ...
HMS H4, another submarine of the same class | |
History | |
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United Kingdom | |
Name | H21 |
Builder | Vickers Limited, Barrow-in-Furness |
Launched | 20 October 1917 |
Commissioned | 28 January 1918 |
Fate | Sold, 13 July 1926 |
General characteristics | |
Class and type | H class submarine |
Displacement |
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Length | 171 ft 0 in (52.12 m) |
Beam | 15 ft 4 in (4.67 m) |
Propulsion |
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Speed |
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Range |
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Complement | 22 |
Armament |
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