HMS Umbra

HMS Umbra (P35) 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 Umbra.

HMS Umbra
History
United Kingdom
Name: HMS Umbra
Builder: Vickers Armstrong, Barrow-in-Furness
Laid down: 19 July 1940
Launched: 15 March 1941
Commissioned: 2 September 1941
Fate: Sold for scrap on 9 July 1946, broken up at Blyth
General characteristics
Class and type: U-class submarine
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:

Career
HMS Umbra's Jolly Roger

She spent most of the war in the Mediterranean, where she sank the Italian merchants Assunta De Gregori, Francesco Barbaro, Sacro Cuore, Emilio Morandi, the Italian transport ship Manfredo Campiero, and the German merchant Süllberg. She also sank the Italian salvage vessel Rampino, and picked up her sole survivor, and torpedoed and sank the damaged Italian heavy cruiser Trento on 15 June 1942. Trento had already been damaged by a torpedo from a British Beaufort aircraft (No. 217 Squadron RAF based at Malta). She also attacked the Italian battleship Littorio, but her torpedoes missed their target.

Umbra also torpedoed and destroyed the grounded Italian supply ship Amsterdam on 23 October 1942, and sank the Italian tug Pronta that was trying to salvage the Amsterdam. The Amsterdam had been grounded after being hit by a torpedo during an air attack. Umbra also damaged the Italian troop transport Piemonte (ex-Canadian Pacific Railways passenger liner Minnedosa, Harland and Wolff hull number 464) and the Italian merchant Napoli. The ship was beached and later destroyed by aircraft. She later attacked and damaged the German troop transport Macedonia north of Sousse, Tunisia. The damaged German ship was beached and abandoned. She also launched an attack on the Italian merchant Nino Bixio, but missed her.

One of her last actions was to attack the Italian sailing vessels Nuovo Domenico and Concetta Falco with gunfire in the Gulf of Hammamet on 11 January 1943. The Nuovo Domenico was damaged during the attack.

She survived the war and was sold to be broken up for scrap on 9 July 1946, and scrapped at Blyth.

References
  • "HMS Umbra (P 35)". uboat.net. Retrieved 25 February 2007.
  • Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.
  • Hutchinson, Robert (2001). Jane's Submarines: War Beneath the Waves from 1776 to the Present Day. London: HarperCollins. ISBN 978-0-00-710558-8. OCLC 53783010.



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