HMS Onslaught (S14)

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HMS Onslaught was a British Template:Sclass attack submarine operated by the Royal Navy.

Design and construction

{{#invoke:Labelled list hatnote|labelledList|Main article|Main articles|Main page|Main pages}} The Oberon class was a direct follow on of the Porpoise-class, with the same dimensions and external design, but updates to equipment and internal fittings, and a higher grade of steel used for fabrication of the pressure hull.<ref>Template:Cite book</ref>

As designed for British service, the Oberon-class submarines were Template:Convert in length between perpendiculars and Template:Convert in length overall, with a beam of Template:Convert, and a draught of Template:Convert.<ref name=Moore490>Template:Cite book</ref> Displacement was 1,610 tons standard, 2,030 tons full load when surfaced, and 2,410 tons full load when submerged.<ref name=Moore490/> Propulsion machinery consisted of 2 Admiralty Standard Range 16 VMS diesel generators, and two Template:Convert electric motors, each driving a Template:Convert, 3-bladed propeller at up to 400 rpm.<ref name=Moore490/> Top speed was Template:Convert when submerged, and Template:Convert on the surface.<ref name=Moore490/> Eight Template:Convert diameter torpedo tubes were fitted (six facing forward, two aft), with a total payload of 24 torpedoes.<ref name=Moore490/> The boats were fitted with Type 186 and Type 187 sonars, and an I-band surface search radar.<ref name=Moore490/> The standard complement was 68: 6 officers, 62 sailors.<ref name=Moore490/>

Onslaught was laid down by Chatham Dockyard on 8 April 1959, and launched on 24 September 1960.<ref name=Moore490/> The boat was commissioned into the Royal Navy on 14 August 1962.<ref name=Moore490/>

Operational history

Template:Expand section Onslaught was first assigned to the 2nd Submarine Squadron, based in Devonport. She was reassigned to the Singapore-based 7th Squadron in 1966, and received a refit in Devonport from 1970 to 1972. She was then assigned to the 1st Squadron in 1972.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Her squadron assignment after 1983 is unknown.

Her patrols in the Mediterranean and Baltic seas from 1986 to 1988 are classified.<ref>Template:Cite news</ref>

Decommissioning and fate

Onslaught was paid off in 1990, and broken up at Aliaga, Turkey in 1991.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Publications

• {{#invoke:template wrapper|{{#if:|list|wrap}}|_template=cite book

|_exclude=case, year, _debug
| last1 = Colledge
| first1 = J. J. 
| author-link1= J. J. Colledge
| last2 = Warlow
| first2 = Ben
| date = 2006
| orig-date = 1969
| title = Ships of the Royal Navy: The Complete Record of All Fighting Ships of the Royal Navy from the 15th Century to the Present
| edition = Rev.
| location = London
| publisher = Chatham Publishing
| isbn = 978-1-86176-281-8
| OCLC = 67375475

}}

• Template:Cite book.