HMSUpstart, 15 February 1952
History
United Kingdom
Name	HMSUpstart
Builder	Vickers Armstrong,Barrow-in-Furness
Laid down	17 March 1942
Launched	24 November 1942
Commissioned	3 April 1943
Out of service	Loaned toGreek Navy from 1945
Fate	Sunk as ASDIC target 29 July 1959
Badge
Greece
Name	Amfitriti
In service	1945
Fate	Returned to Royal Navy in 1952
General characteristics
Class and type	U-classsubmarine
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 internal21 inch (533 mm) torpedo tubes - 8 - 10 torpedoes 1 -3-inch (76 mm) gun

HMSUpstart (P65) was aRoyal NavyU-classsubmarine built byVickers-Armstrong. So far she has been the only ship of the Royal Navy to bear the nameUpstart. After the war, she was loaned to theGreek Navy and renamedAmfitriti.

Upstart spent most of her wartime career operating off the south coast of France, where she sank the French fishing vesselsGrotte de Bethlehem andTorpille, the German auxiliary minelayerNiedersachsen (the former FrenchGuyane) and the German merchantTolentino (the former FrenchSaumur). She also launched failed attacks against the French merchantMedjerda and the Italian merchantPascoli.

Upstart survived the war and was loaned to theGreek Navy in 1945, where she was renamedAmfitriti. She served with the Greek Navy for seven years, and was returned to the Royal Navy in 1952. She was subsequently sunk as an ASDIC target off theIsle of Wight on 29 July 1959.

• McCartney, Innes (2002).Lost patrols : submarine wrecks of the English Channel. Penzance: Periscope.ISBN 978-1-90438-104-4.
• "HMSUpstart (P 65)".uboat.net.
• "Untiring to Urge".British submarines of World War II. Archived fromthe 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.

• British U-class submarines
• Ships built in Barrow-in-Furness
• 1942 ships
• World War II submarines of the United Kingdom
• British U-class submarines of the Hellenic Navy
• Maritime incidents in 1959

• Articles with short description
• Short description is different from Wikidata
• Use dmy dates from April 2017
• Use British English from April 2017