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River-class submarine
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River-class submarine
please note:
- the content below is remote from Wikipedia
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{{Short description|Type of British submarines in service during WWII}}{{For|other naval ship classes of the same name|River class (disambiguation)}}{{Use dmy dates|date=January 2018}}{{Use British English|date=January 2018}}{|- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
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Hide Header| Header caption | | Ship type = Submarine| Ship ordered = 1931| Ship displacement = *2,206 tons surfaced (Thames 2,165 tons) |
- 2 supercharged diesels {{convert|10,000|hp|kW|abbr=on}} max
- 2 electric motors {{convert|2,500|hp|kW|abbr=on}}
- {{convert|10|kn|km/h|0}} submerged
- 1 Ã QF {{convert|4|in|mm|adj=on|sigfig=4}} Mk XII deck gun| Ship aircraft = none| Ship aircraft facilities = | Ship notes = Last fleet submarine design adopted by the Royal Navy
Design
The River class was the last attempt by the Admiralty to produce "fleet submarines", submarines fast enough to operate as part of a fleet, which at the time meant being able to manage somewhere around {{convert|20|kn|km/h|0}} while surfaced. The previous attempts had been the steam powered K-class submarines and the large {{convert|12|in|mm|0|adj=on}} gunned M-class submarines. The M class were K-class hulls re-engined with diesels and modified to take a single {{convert|12|in|mm|abbr=on|0}} naval gun directly forward of the conning tower.A design was drawn up in the late 1920s and three vessels were built by Vickers in Barrow: Thames in 1932, and Severn and Clyde in 1935. The latter two were a little larger than Thames. Initially 20 were planned, but changes in thinking and cost-cuts limited the building to just the three.The design compromised on diving depth to keep weight down and speed up. They had a safe diving depth of some {{convert|300|ft|m|-1}} compared to the {{sclass|Odin|submarine|4}} before them which had managed {{convert|500|ft|m|-1}}. They were powered by two diesel engines delivering {{convert|8,000|bhp|kW|lk=in|abbr=on}}. Two Ricardo engines drove generators that supercharged the diesels up to {{convert|10,000|bhp|kW|abbr=on}}. This gave them a surface speed of {{convert|22|kn|km/h|0}}. A rather unfortunate fault with the River-class was a tendency for engine trouble after several long journeys. Another alarming fault, although this was confined to Clyde was the hydroplanes failing, causing the submarine to bottom. This would put a great stress on the hull of the submarine, as it was of riveted construction, rather than the welded construction of other British submarines.Operational history
During the Second World War, they initially operated in the North Sea and Mediterranean, then moved to the Far East in the latter stages.Clyde and Severn set sail from Gibraltar heading to take up station in Freetown on 31 August 1939, just four days before the outbreak of hostilities. On their arrival, they joined South Atlantic Command and were tasked with convoy defence duties.HMS Clyde Service History for Second World War They arrived on September 7, with Clyde departing on her first war patrol the following day.Thames was lost off Norway on 23 September 1940 during an operation to sink the German Battlecruiser Gneisenau. It failed to do this, but sank the escorting torpedo boat Luchs.HMS Thames Service History for Second World War The wreck of the Thames is yet to be found. When it is discovered, it is highly likely that it is to be left alone, because like all ships lost in wartime, it is considered to be a war grave.Clyde was used on six occasions to deliver supplies to the besieged island of Malta in September 1941. Severn was used as part of the escort for Convoy SL16F in January 1940, along with the Armed Merchant Cruiser HMS Cheshire and the destroyers HMS Hardy and HMS Hostile. Convoy duty was not something that was alien to Severn and Clyde, as they would carry out this duty on a regular basis due to their long range. Clyde and Severn would both go through an extensive refit in the USASevern had the most colourful service out of all three. It would be used in the aftermath of the Battle of the River Plate to hunt for German Surface Raiders and their support ships. April 5, 1940 would see Severn join the northbound convoy FN139. It would also be put on standby for potential involvement in the hunt for the Bismarck, but the Bismarck was sunk before the Severn was called into action. It would be used for part of Operation Hawthorn during June - July 1943. Severn and Clyde , whether it was by choice or accident, would often be stationed together. Severn and Clyde were in service in the Far East (operating out of Trincomalee) when they were taken out of service - Severn in December 1944 and Clyde in July 1945. Both ships were believed to have been scrapped by the end of 1946.Boats
- {{HMS|Thames|N71}} - accounted for 1 enemy vessel
- {{HMS|Severn|N57}} - accounted for 4 enemy vessels
- {{HMS|Clyde|N12}} - accounted for 6 enemy vessels
References
Bibliography
- JOURNAL, Caruana, Joseph, 2012, Emergency Victualling of Malta During WWII, Warship International, LXIX, 4, 357â364, 0043-0374,
- Conway's All the World's Fighting Ships 1922â1946
- D.K. Brown - Nelson to Vanguard, Chatham Maritime Press {{ISBN|1-86176-136-8}}
- BOOK, Jane's Fighting Ships of World War II, 1998, 63, 1-85501-994-9,
External links
{{Commons category|River class submarines}} {{River class submarine}}{{WWII British ships}}- content above as imported from Wikipedia
- "River-class submarine" does not exist on GetWiki (yet)
- time: 9:19am EDT - Sat, May 18 2024
- "River-class submarine" does not exist on GetWiki (yet)
- time: 9:19am EDT - Sat, May 18 2024
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