View source for Hawthorn M-class destroyer

{{Use dmy dates|date=December 2017}}
{{Use British English|date=December 2017}}
{{no footnotes|date=January 2013}}
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{{Infobox ship class overview
|Name=
|Builders=[[Hawthorn Leslie and Company]], [[Hebburn]]
|Operators={{navy|United Kingdom}}
|Class before=
|Class after=
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|Cost=
|Built range=1914–1915
|In service range=
|In commission range=1915–1921
|Total ships building=
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|Total ships completed=2
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|Total ships retired=2
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{{Infobox ship characteristics
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|Ship type=[[Destroyer]]
|Ship displacement= {{convert|1057|LT|t|0}}
|Ship length= {{convert|271|ft|6|in|m|abbr=on}} [[Length overall|o/a]]
|Ship beam= {{convert|27|ft|6|in|m|abbr=on}}
|Ship height=
|Ship draught= {{convert|10|ft|6|in|m|abbr=on}}
|Ship depth= {{convert|16|ft|9|in|m|abbr=on}}
|Ship propulsion=Yarrow-type boilers, Parsons I.R. [[steam turbines]], 3 shafts, {{convert|27000|hp|0|abbr=on}}, 300 tons oil fuel
|Ship speed= {{convert|35|kn|mph km/h|lk=in}}
|Ship range=
|Ship complement=76
|Ship sensors=
|Ship EW=
|Ship armament=*3 × [[QF 4 inch naval gun Mk IV, XII, XXII|QF {{convert|4|in|mm|abbr=on|0}} Mark IV guns]], mounting P Mk.IX
* 1 × single [[QF 2-pounder naval gun|QF 2-pounder "pom-pom" Mk.II]]
* 2 × twin [[British 21 inch torpedo|21 inch (533 mm)]] [[torpedo tube]]s
|Ship armour=
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The '''Hawthorn M''' (or '''Mansfield''') '''Class''' were a [[ship class|class]] of two [[destroyer]]s built for the [[Royal Navy]] under the pre-war 1913-14 Programme for [[World War I]] service.

They were similar to the [[Admiralty M-class destroyer|Admiralty M class]], but completed to a modified design by [[Hawthorn Leslie and Company]], [[Hebburn|Hebburn on Tyne]]. They had four funnels instead of the three funnels of the Admiralty design; as a consequence, they were the last four-funnelled destroyers (apart from Leaders) to be built for the Royal Navy. The midships 4 inch gun was shipped between the second and third funnels. Both ships were laid down on 9 July 1914 and completed in 1915. Both survived the war and were scrapped in 1921,

Hawthorn Leslie subsequently received orders for two further '''M class''' destroyers as part of the large batch of orders placed in May 1915, but these two - ''Pidgeon'' and ''Plover'' - were built to the '''Admiralty M class''' design.

== Ships ==
* {{HMS|Mentor|1914|2}}, launched 21 August 1914, completed January 1915, sold for breaking up 9 May 1921 to [[Thos. W. Ward]] at [[Hayle]].
* {{HMS|Mansfield|1914|2}}, launched 3 December 1914, completed April 1915, sold for breaking up 26 October 1921 to Barking Ship Breaking Company.

==Bibliography==
* ''Destroyers of the Royal Navy, 1893-1981'', Maurice Cocker, 1983, Ian Allan {{ISBN|0-7110-1075-7}}
* ''Jane's Fighting Ships, 1919'', Jane's Publishing

{{M class destroyers|state=collapsed}}
{{WWI British ships|state=collapsed}}

[[Category:Destroyer classes|M class destroyer Hawthorn]]
[[Category:M-class destroyers (1913)| ]]
[[Category:Ship classes of the Royal Navy]]