HMS Unseen (P51)

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History

United Kingdom
Name	HMS Unseen
Builder	Vickers Armstrong, Barrow-in-Furness
Laid down	30 July 1941
Launched	16 April 1942
Commissioned	2 July 1942
Fate	Scrapped September 1949
Badge
General characteristics
Displacement	Surfaced - 540 tons standard, 630 tons full load Submerged - 730 tons
Length	58.22 m (191 ft)
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 (20.8 km/h) max surfaced 10 knots (19 km/h) max submerged
Complement	27-31
Armament	4 bow internal 21 inch (533 mm) torpedo tubes - 8 - 10 torpedoes 1 - 3-inch (76 mm) gun

HMS Unseen (P51) was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness.

Career

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Unseen spent most of her wartime career in the Mediterranean, where she sank the Italian merchants Zenobia Martini, Le Tre Marie and Rastello (the former Greek Messaryas Nomikos), the Italian naval auxiliary Sportivo, the German auxiliary submarine chaser UJ-2205 (the former French Le Jacques Coeur), the Italian sailing vessel Fabiola, the German minelayer Brandenburg (the former French Kita), the German nightfighter direction vessel Kreta (the former French Ile de Beauté) and the German barge F 541. Unseen also destroyed the wreck of the German merchant Macedonia and a salvage barge.

Unseen also launched unsuccessful attacks against the Italian merchant Saluzzo (the former French Tamara), and what is identified as an Italian Capitani Romani class cruiser.

Unseen survived the war and was scrapped at Hayle in September 1949.

References

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"HMS Unseen (P 51)". uboat.net.
"Universal to Untamed". British submarines of World War II. Archived from the original on 11 July 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.

External links

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Interview with Captain Michael "Tubby" Crawford DSC, RN, who commanded HMS Unseen from 1942 to 1944

British U-class submarines

First group	Undine Ursula Unity
Second group	Urge Utmost Upholder Undaunted Union Usk Umpire Una Upright Unbeaten Unique Urchin
Third group	Ullswater / Uproar P32 P33 Ultimatum Umbra P36 Unbending P38 P39 P41 Unbroken Unison United Unrivalled Unruffled P47 P48 Unruly Unseen P52 Ultor Unshaken Unsparing Usurper Universal Untamed / Vitality Untiring Varangian Uther Unswerving Vandal Upstart Varne Vox

Other operators
Royal Danish Navy	U 1 / Springeren (ex-Dzik)
Free French Naval Forces French Navy	Curie (ex-Vox)
Royal Hellenic Navy	Xifias (ex-Untiring) Amphitriti (ex-Upstart)
Royal Netherlands Navy	Dolfijn (ex-P47)
Royal Norwegian Navy	Uredd (ex-P41) Ula (ex-Varne)
Polish Navy	Dzik (ex-P52) Sokół (ex-Urchin)
Soviet Navy	V-2 (ex-Unbroken) V-3 (ex-Unison) V-4 (ex-Ursula)

Preceded by: T class
Followed by: P611 class

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