HMS Usurper (P56)

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Career RN Ensign
Class and type: U-class submarine
Name: HMS Usurper
Builder: Vickers Armstrong, Barrow-in-Furness
Laid down: 18 September 1941
Launched: 24 September 1942
Commissioned: 2 February 1943
Fate: sunk 3 October 1943
General characteristics
Displacement:

Surfaced - 540 tons standard, 630 tons full load


Submerged - 730 tons
Length: 58.22 m (191 feet)
Beam: 4.90 m (16 ft 1 in)
Draught: 4.62 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
Complement: 27-31
Armament:

4 bow internal 21 inch torpedo tubes - 8 - 10 torpedoes


1 - 3 inch gun

HMS Usurper (P56) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness. So far she has been the only ship of the Royal Navy to bear the name Usurper.

[edit] Career

Usurper had a shortlived 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 Mediterannean, she sank the French ship Château Yquem.

[edit] Sinking

Usurper had left Algiers on 24 September 1943 with instruction to patrol off La Spezia. On 3 October 1943 she was ordered to move to the Gulf of Genoa. No further contact was made and she failed to return to Algiers on 12 October 1943 as expected. 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 the Usurper.

[edit] References