- References
{{other ships|HMS P33}}{{Use dmy dates|date=February 2018}}{{Use British English|date=February 2018}}{{Infobox ship image| Ship image= | Ship caption=
}}{{Infobox ship career | Hide header= | Ship country=United Kingdom | United Kingdom|naval}} | Ship badge= | Ship class= | Ship name= | Ship ordered= | Ship awarded= | Ship builder=Vickers Armstrong, Barrow-in-Furness | Ship laid down= 18 June 1940 | Ship launched= 28 January 1941 | Ship christened= | Ship acquired= | Ship commissioned= 30 May 1941 | Ship recommissioned= | Ship decommissioned= | Ship in service= | Ship out of service= | Ship renamed= | Ship reclassified= | Ship refit= | Ship captured= | Ship struck= | Ship reinstated= | Ship fate=Sunk August 1941, probably during depth charge attack on 18 August 1941 | Ship status= | Ship homeport=
}}{{Infobox ship characteristics | Hide header= | Header caption= | Ship displacement=*Surfaced - 540 tons standard, 630 tons full load | Ship length=58.22 m (191 ft) | Ship beam=4.90 m (16 ft 1 in) | Ship draught=4.62 m (15 ft 2 in) | Ship draft= | Ship propulsion=*2 shaft diesel-electric- 2 Paxman Ricardo diesel generators + electric motors
- 615 / 825 hp
| 11.25|kn|km/h|1}} max surfaced- {{convert|10|kn|km/h|0}} max submerged
| Ship range= | Ship endurance= | Ship test depth= | Ship boats= | Ship capacity= | Ship complement=33 | Ship time to activate= | Ship sensors= | Ship EW= | Ship armament=*4 bow internal 21 inch (533 mm) torpedo tubes - 8 - 10 torpedoes- 1 - {{convert|3|in|mm|sing=on}} gun
| Ship armour= | Ship armor= | Ship aircraft= | Ship motto= | Ship nickname= | Ship honours= | Ship notes=
}} | HMS P33 was a Royal Navy U-class submarine built by Vickers-Armstrong at Barrow-in-Furness. Commanded throughout her entire career by Lieutenant R.D. Whiteway-Wilkinson, the submarine was attached to the 10th Submarine Flotilla based at Malta. On 15 July 1941, the submarine sunk the 5,300 ton motor-vessel Barbarigo south of Punta Sciaccazza, Pantelleria, part of a small Italian convoy. The submarine departed on her final patrol on 6 August 1941 from Malta to patrol off Sicily to intercept an Italian convoy heading towards Libya. Her sister boat P32, which was attacking the same convoy along with HMS Unique, reported hearing a prolonged depth charge attack on 18 August and subsequently attempted unsuccessfully to contact P33. P32 was herself sunk later that day. P33 became overdue on 20 August and was almost certainly have been sunk in this attack. It is, however, possible that she was sunk by the Italian torpedo boat Partenope near Pantelleria on 23 August. Lost aboard P33 was Lieutenant Richard Cunningham, the son of Vice Admiral John Cunningham, who would later become First Sea Lord. References - {{cite web | title= HMS P33 | work= Uboat.net | url= http://uboat.net/allies/warships/ship/3543.html | accessdate=2007-01-28}}
- {{cite web | title= Submarine losses 1904 to the present day | work= RN Submarine Museum | url = http://www.rnsubmus.co.uk/general/losses.htm#p33 | accessdate=2007-01-28 |archiveurl = https://web.archive.org/web/20070102110909/http://www.rnsubmus.co.uk/general/losses.htm#p33 |archivedate = 2007-01-02}}
- {{cite web | title= H.M. Submarine P.33 | work=Britsub.net | url = http://www.britsub.net/html/p33.htm | accessdate=2007-01-28}}
- {{Colledge}}
- {{cite book | last = Hutchinson | first = Robert | title = Jane's Submarines: War Beneath the Waves from 1776 to the Present Day | year = 2001 | location = London | publisher = HarperCollins | isbn = 978-0-00-710558-8 | oclc = 53783010 }}
{{British U class submarine}}{{August 1941 shipwrecks}}{{coord missing|Mediterranean}}{{DEFAULTSORT:P033}} 8 : British U-class submarines|Ships built in Barrow-in-Furness|1941 ships|World War II submarines of the United Kingdom|Lost submarines of the United Kingdom|World War II shipwrecks in the Mediterranean|Maritime incidents in August 1941|Ships lost with all hands |