HMS Excalibur
{{short description|Submarine of the Royal Navy}}
{{Use dmy dates|date=August 2017}}
{{Use British English|date=August 2017}}
{{more citations needed|date=June 2008}}
| {{Infobox ship begin}}
{{Infobox ship image |Ship image= Hms_excalibur_submarine.jpg |Ship caption= HMS Excalibur (S40) }} {{Infobox ship career |Hide header= |Ship country=United Kingdom |Ship flag={{shipboxflag|United Kingdom|naval}} |Ship name=Excalibur |Ship ordered=26 August 1947 |Ship awarded= |Ship builder=Vickers Armstrong[http://www.oldships.org.uk/SHIPS/SHIP_DETAILS/EXCALIBUR_DETAIL.htm Oldships.org.uk HMS Excalibur] |Ship original cost= |Ship yard number= |Ship way number= |Ship laid down= |Ship launched=25 February 1955 |Ship sponsor= |Ship christened= |Ship completed=22 February 1958 |Ship acquired= |Ship commissioned= |Ship recommissioned= |Ship decommissioned= |Ship in service= |Ship out of service= |Ship renamed= |Ship reclassified= |Ship refit= |Ship struck= |Ship reinstated= |Ship homeport= |Ship identification=Pennant number: S40 |Ship motto= |Ship nickname=The Excruciator[http://www.submarineheritage.com/gallery_eclass.htm Submarine Heritage Centre] |Ship honours= |Ship fate=Scrapped, 1968 |Ship notes=Built at a cost of £1,142,000 |Ship badge= }} {{Infobox ship characteristics |Hide header= |Header caption= |Ship class={{sclass|Explorer|submarine}} |Ship displacement=*{{convert|780|LT|t|lk=on}} (surfaced)
|Ship length={{convert|178|ft|m|abbr=on}} |Ship beam={{convert|15|ft|8|in|m|abbr=on}} |Ship height= |Ship draught={{convert|11|ft|m|abbr=on}} |Ship depth= |Ship power= |Ship propulsion=*High Test Peroxide (HTP) steam raising plant driving steam turbines (submerged)
|Ship speed={{convert|25|kn|lk=in}} (submerged) |Ship range= |Ship endurance= |Ship test depth= |Ship complement=41 |Ship armament=None }} |
HMS Excalibur was an {{sclass|Explorer|submarine}}, the sister ship of {{HMS|Explorer|submarine|6}}, the two submarines being the only high-test peroxide (HTP) powered submarines to be constructed for the Royal Navy. She is the only ship to be named as such, in honour of the sword of Arthurian legend.
Operation
Both Excalibur and Explorer were assigned to the 3rd Submarine Squadron although due to their experimental nature, they tended to operate independently, accompanied by their depot ship HMS Kingfisher and a fuel carrier, RFA Spabeck. They later acted as high-speed underwater targets for the Royal Navy's prototype nuclear-powered submarine {{HMS|Dreadnought|S101|6}}.
Periscope
File:Elie Golf Course Starter Hut - geograph.org.uk - 20451.jpg
The submarine's periscope survives. It was installed in the starter's hut at the Golf House Club, the golf club at Elie and Earlsferry, Scotland; players and visitors may use it to view the golf course.{{cite web |url=https://www.geograph.org.uk/photo/1003227 |title=NO4800 : Periscope in starters hut Elie Golf Course |author= Ronnie Leask |date=12 October 2008 |accessdate=19 September 2011|publisher=www.geograph.org }}
{{clear left}}
References
{{reflist}}
Bibliography
{{Commons category|HMS Excalibur (S40)}}
- {{Cite Colledge2006}}
- {{cite book|author1-last=Preston|author1-first=Antony|editor1-last=Chumbley|editor1-first=Stephen |title=Conway's All The World's Fighting Ships 1947–1995 |year=1995|publisher=Naval Institute Press |location= Annapolis, Maryland | isbn=1-55750-132-7|name-list-style=amp|chapter=United Kingdom |pages=95–131|author-link=Antony Preston}}
- {{cite journal |last1=Thomas |first1=Steve |title=Fire and Water: Britain's Fast Submarine Program |journal=Marine News Supplement: Warships |date=November 2022 |volume=76 |issue=11 |pages=S599–S613 |issn=0966-6958}}
{{British Explorer class submarine}}
{{DEFAULTSORT:Excalibur}}
Category:Explorer-class submarines
Category:Ships built in Barrow-in-Furness
Category:Cold War submarines of the United Kingdom
{{UK-mil-submarine-stub}}