HMS B6

The B class was an enlarged and improved version of the preceding A class. The submarines had a length of {{convert|142|ft|3|in|m|1}} overall, a beam of {{convert|12|ft|7|in|m|1}} and a mean draft of {{convert|11|ft|2|in|m|1}}. They displaced {{convert|287|LT|t}} on the surface and {{convert|316|LT|t}} submerged. The B-class submarines had a crew of two officers and thirteen ratings.Gardiner & Gray, p. 87

For surface running, the boats were powered by a single 16-cylinder {{convert|600|bhp|lk=in|0|adj=on}} Vickers petrol engine that drove one propeller shaft. When submerged the propeller was driven by a {{convert|180|hp|0|adj=on}} electric motor. They could reach {{convert|12|kn|lk=in}} on the surface and {{convert|6.5|kn}} underwater. On the surface, the B class had a range of {{convert|1000|nmi|lk=in}} at {{convert|8.7|kn}}.Akermann, p. 123

The boats were armed with two 18-inch (450 mm) torpedo tubes in the bow. They could carry a pair of reload torpedoes, but generally did not as they would have to remove an equal weight of fuel in compensation.Harrison, Chapter 27

B6 was built by Vickers at their Barrow-in-Furness shipyard, launched 30 November 1905 and completed 3 March 1906.

In July 1914, B6 was based at Gibraltar.{{cite journal|title=Fleets and Squadrons in Commission at Home and Abroad: Gibraltar|journal=The Navy List|date=August 1914|page=270|url=http://digital.nls.uk/british-military-lists/archive/91884238|accessdate=28 September 2017|via=National Library of Scotland}} Following the outbreak of the First World War she was employed in patrolling the Straits of Gibraltar.{{Harvnb|Naval Staff Monograph No. 21|1923|p=115}} B6 was deployed to the Eastern Mediterranean for service during the Gallipoli Campaign. On 17 April 1915, the submarine {{HMS|E15}} attempted to break through the Dardanelles in order to attack shipping in the Sea of Marmara. E15 ran aground and her crew were forced to abandon ship, so later that day B6 unsuccessfully attempted to torpedo E15 to prevent Turkish attempts to salvage the stricken submarine.{{Harvnb|Corbett|1921|p=302}}The Naval Review July 1956, pp. 294–296. E15 was finally torpedoed and sunk by picket boats from the Battleships {{HMS|Majestic|1895|2}} and {{HMS|Triumph|1903|2}} on the night of 18 April.{{Harvnb|Corbett|1921|pp=303–304}}

In August 1915 B6 and sister ship {{HMS|B11||2}} were sent to Alexandria in Egypt, arriving on 13 August, to deter Turkish attempts to smuggle supplies to Bedouin tribesmen. The two submarines had orders to patrol off Sollum, but were found to be unsuited to this duty, being too small and having too short a range and so were withdrawn from the operation.{{Harvnb|Naval Staff Monograph No. 21|1923|pp=182–184}}

In October 1915 B6 was one of six B-class submarines deployed to the Adriatic Sea to support the Italian Navy. It was hoped that the short range of these old submarines would be less of a problem in the confined waters of the Adriatic. In November, the flotilla commenced operations out of Venice. While the B-class submarines proved to be more seaworthy than Italian submarines, operations were hampered by extensive use of mines in the Northern Adriatic.{{Harvnb|Naval Staff Monograph No. 21|1923|pp=202–204}}

In 1917 the Italian Navy converted B6 into surface patrol boat S6 to serve in the Adriatic. The boat was sold in 1921 to Messrs. Francotosti, Malta.

{{reflist|30em}}

• {{cite book|last=Akermann|first=Paul|title=Encyclopaedia of British Submarines 1901–1955|edition=reprint of the 1989|year=2002|publisher=Periscope Publishing|location=Penzance, Cornwall|isbn=1-904381-05-7}}
• {{cite book|last=Corbett|first=Julian S.|title=Naval Operations: Vol. II|url=https://archive.org/details/in.ernet.dli.2015.523436|series=History of the Great War: Based on Official Documents|year=1921|publisher=Longmans, Green and Co.|location=London}}
• {{cite book |editor1-last=Gardiner|editor1-first=Robert|editor2-last=Gray|editor2-first=Randal|title=Conway's All the World's Fighting Ships 1906–1921|year=1985|location=Annapolis, Maryland|publisher=Naval Institute Press|isbn=0-85177-245-5|name-list-style=amp}}
• {{cite book|title=Monograph No. 21: The Mediterranean 1914–1915|series=Naval Staff Monographs (Historical)|volume=VIII|year=1923|publisher=The Naval Staff, Training and Staff Duties Division|url=http://www.navy.gov.au/sites/default/files/documents/Naval-Staff-Monographs-Vol.VIII_opt.pdf|ref={{Harvid|Naval Staff Monograph No. 21|1923}}}}
• {{cite web|url=http://rnsubs.co.uk/dits-bits/br-3043.html|title=The Development of HM Submarines From Holland No. 1 (1901) to Porpoise (1930) (BR3043)|last=Harrison|first=A. N.|date=January 1979|publisher=United Kingdom Ministry of Defence|via=RN Subs|accessdate=16 September 2019}}
• {{cite journal |last1=Kemp |first1=Paul |last2=Jung |first2=Peter |title=Five Broken Down B Boats: British Submarine Operations in the Northern Adriatic 1915–1917 |journal=Warship International |date=1989 |volume=XXVI |issue=1 |pages=10–29 |issn=0043-0374|name-list-style=amp}}
• {{cite journal|title=The Submarine Passage of the Dardanneles: Part 1|journal=The Naval Review|date=July 1956|volume=XLIV|issue=3|pages=281–299}}
• {{cite book|last=Wilson|first=Michael|editor=Roberts, John|title=Warship Volume V|year=1981|publisher=Conway Maritime Press|location=London|isbn=0-85177-244-7|pages=38–44, 74–79|chapter=The British 'B' Class Submarine}}

{{British B class submarine}}

{{DEFAULTSORT:B06}}

Category:British B-class submarines

Category:World War I submarines of the United Kingdom

Category:Ships built in Barrow-in-Furness

Category:Royal Navy ship names

Category:1905 ships