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HMS Usurper

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Submarine of the Royal Navy

History
United Kingdom
NameHMS Usurper
BuilderVickers-Armstrongs, High Walker
Laid down18 September 1941
Launched24 September 1942
Commissioned2 February 1943
FateSunk 3 October 1943
General characteristics
Class and typeU-class submarine
Displacement
  • Surfaced – 540 tons standard, 630 tons full load
  • Submerged – 730 tons
Length58.22 m (191 feet)
Beam4.90 m (16 ft 1 in)
Draught4.62 m (15 ft 2 in)
Propulsion
  • 2 shaft diesel-electric
  • 2 Paxman Ricardo diesel generators + electric motors
  • 615 / 825 hp
Speed
  • 11.25 knots max surfaced
  • 10 knots max submerged
Complement27–31
Armament

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.

Career

Usurper had a short-lived career with the Royal Navy. During her work-up patrol off the Norwegian coast, she made a torpedo attack on the German submarine U-467. The target was not hit. On being assigned to operate in the Mediterranean, she sank the French ship Château Yquem.

Sinking

Lt D. R. O. Mott DSC RN, Commanding Officer of HMS Usurper, Holy Loch, 6 February 1943 (IWM A14396)

Usurper had left Algiers on 24 September 1943 to patrol off La Spezia. On 3 October 1943 she was ordered to move to the Gulf of Genoa, after which there was no further contact. She was overdue at Algiers on 12 October 1943. The German anti-submarine vessel UJ-2208/Alfred reported attacking a submarine in the Gulf of Genoa on 3 October 1943 and it is believed that this may have been Usurper. During the war, Usurper was adopted by the town of Stroud as part of Warship Week. The plaque from this adoption is held by the National Museum of the Royal Navy in Portsmouth.

Citations

  1. Warship Weeks: Adopting Naval Vessels in World War Two | Royal Naval Museum at Portsmouth Historic Dockyard Archived 7 February 2012 at the Wayback Machine

References

British U-class submarines
First group
Second group
Third group
Other operators
 Royal Danish Navy
 Free French Naval Forces
 French Navy
 Royal Hellenic Navy
 Royal Netherlands Navy
 Royal Norwegian Navy
 Polish Navy
 Soviet Navy
  • V-2 (ex-Unbroken)
  • V-3 (ex-Unison)
  • V-4 (ex-Ursula)
Shipwrecks and maritime incidents in October 1943
Shipwrecks
Other incidents
1942 1943 1944
September 1943 November 1943

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