HMS Unruffled returning to harbour in Malta after a patrol in the Mediterranean
|Builder:||Vickers Armstrong, Barrow-in-Furness|
|Laid down:||25 February 1941|
|Launched:||19 December 1941|
|Commissioned:||9 April 1942|
|Identification:||Pennant number P46|
|Fate:||Scrapped January 1946|
|Class and type:||U-class submarine|
|Length:||191 feet (58 m)|
|Beam:||16 feet 1 inch (4.90 m)|
|Draught:||15 feet 2 inches (4.62 m)|
Unruffled spent most of her eventful wartime career in the Mediterranean, where she sank the Vichy-French merchant ship Liberia (the former Greek Cape Corso), the Italian auxiliary minesweeper N 10 / Aquila, the Italian merchant ships Leonardo Palomba, Una, Sant'Antioco, Citta di Catania, and Città di Spezia, the Italian tankers Castelverde and Teodolinda, the Italian sailing vessel Amabile Carolina, the Italian naval auxiliary Z 90 / Redentore, the German merchant ships Lisboa, Pommern and Baalbeck and the French tanker Henri Desprez.
Unruffled launched unsuccessful attacks on the Italian submarine Antonio Sciesa and the small German minesweeper R 212. Her most important target was the Italian Capitani Romani-class cruiser Attilio Regolo, which she torpedoed on 7 November 1942. 60 feet (18 m) of bow were blown off, but Unruffled could not sink the cruiser, having by now run out of torpedoes. The damaged cruiser was towed to port by the tug Polifemo, escorted by the torpedo boats Cigno, Lince and Abba. Another attack by HMS United failed, but Attilio Regolo was out of action for the rest of the war.
Unruffled survived the War and was scrapped at Troon in January 1946.
- "HMS Unruffled (P 46)". 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) . 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. OCLC 67375475.
- 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.