Changes

|status = Under overhaulOperational

==D821 in service==The Post-War BR Modernisation Plan called for the introduction of a range of Diesel locomotives. Although the majority were diesel electric, the Western Region at Swindon developed the [[UIC classification | B-B]] diesel-hydraulic Class 42 ‘Warship’ class (all bar two of the class being named after Royal Naval vessels).D821 is one of two preserved examples of the 38 originally built.<ref name = "Wikipedia">Wikipedia</ref>

D821 The last HMS Greyhound (H05) was outshopped from BR Swindon Works a G-class destroyer, launched in May 1960, 1935 and served mainly at Plymouth Laira with a brief spell at Newton Abbot. While sunk by German dive bombers in service D821 carried various liveries including green, maroon and blue. She was withdrawn from service 1941 in December 1972the battle for Crete, with more than the loss of 100 lives.<ref>[http://hmscavalier.org.uk/casualtySearch.php?surname=&forenames=&ship=greyhound&page=1 million miles Casuaty Search] (Retrieved 24 July 2019)</ref> An earlier HMS Greyhound, a Greyhound-class destroyer, also saw service from 1900 to 1919. A number of main line workingother Naval vessels have also carried the name. <ref name = "Wikipedia" />

HMS ==D821 in service==D821 Greyhound (H05) was a G-class destroyeroutshopped from BR Swindon Works in May 1960, launched and served mainly at Plymouth Laira with brief spells at Newton Abbot.<ref>[http://www.brdatabase.info/locoqry.php?action=locodata&type=D&id=821&loco=821 BR Database]</ref> While in 1935 service D821 carried various liveries including green, maroon and sunk by German dive bombers in 1941blue. An earlier HMS GreyhoundShe was withdrawn from service on 3 December 1972, a Greyhound-class destroyer, also saw service from 1900 to 1919with more than 1 million miles of main line working. A number of other Naval vessels have also carried the <ref name.= "SVR9">SVR Stock Book 9th Edition</ref>

D821 was bought by members of the [[Diesel Traction Group]], becoming the first main line diesel to be sold for preservation. In May 1973 D821 moved under her own power to Didcot, moving again in the following year to a private siding in Reading. Between February 1977 and April 1981 the locomotive underwent an overhaul at Swindon, and then moved to the North Yorkshire Moors Railway. She finally arrived on the SVR in September 1991.<ref name ="SVR9"/>

An overhaul commenced in 2014.<ref>[http://www.svr.co.uk/MeetTheLoco.aspx?id==Sources==90 SVR meet the Locomotives]</ref> After a long period under repair at Old Oak Common (OOC) she returned to the SVR Stock Book Ninth Editionafter the OOC open day in September 2017, before returning to use in April 2018 in time for the following month's Spring Diesel Festival.

[[Diesel Locomotives]]<br>[[SVR-based diesel locomotives visiting other events]]<br>[[Diesel Traction Group]]<br>[[Locomotive numbering|Locomotives running under different identities]] ==References==<references/>==Links==[https://en.wikipedia.org/wiki/British_Rail_Class_42 BR Class 42 on Wikipedia]<br>[http://www.westernchampion.co.uk/loco-d821.php Diesel Traction Group website]<br> {{DieselNavbox}}