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}}'''80079 ''' is a '''BR Standard Class 4 2-6-4T ''' tank engine designed by R.A. Riddles. The Class 4 tank engine was derived from the ex-LMS Fairburn 2-6-4T, and was used mainly on commuter and outer suburban services. A total of 155 were built, of which 15 have survived into preservation. They had a BR route availability classification of RA5; when used on BR Western Region running lines such as the Severn Valley branch this equated to a [[GWR Power and Weight Classification|Blue route availability]].<ref>British Railways Western Region, Locomotive Route Availability, June 1963</ref>

==Class 4 tanks Towards the end of their life members of the class were regularly based at Shrewsbury, from where they saw occasional [[Locomotives used on the Severn Valley Branch in commercial service | use on the Severn ValleyBranch during commercial service]], particularly at the north end of the line.<ref group==Class 4 tanks’ route availability "note">Between Buildwas and Bewdley was rated as ‘blue’'Dotted Blue', with meaning the Severn Valley branch classified as ‘dotted blue’ from [[Bewdley]] class should have been restricted to 25mph.</ref> These included 80079, one of only two present day SVR residents to have done so (the other being [[BuildwasGWR Large Prairie 4150]]).<ref>[http:SVR News 201<//www.michaelclemensrailways.co.uk/?atk=634 ‘Locomotive Route Availability’, Michael Clemens’ Railways] (Retrieved 30 March 2017)ref> Classmate 80078 was also recorded on the Branch in service;<ref>Picture in SVR News 15</ref> This restricted their speed to 25mph, and so limited their useit has since [[Steam Locomotives visiting the SVR for galas|visited the SVR in preservation]] as has 80136.

===Class 4 tanks allocated to Shrewsbury (89A) to September 1963=80079 in service== Several Class 4 tanks were allocated 80079 was built in 1954 at BR's Brighton works and entered service at Plaistow in March of that year, before moving to [[Shrewsbury|Shrewsbury 89A]] from mid-1962 onwards, including Tilbury a few displaced from the London, Tilbury and Southend line by electrificationmonth later.<refname="BRDatabase">[http://www.brdatabase.info/locoqry.php?action=classlocodata&idtype=726401S&typeid=S80079&pageloco=alloc 80000 page, 80079 BRDatabase] Retrieved 29 January 2015.</ref> From there, 80079 mainly worked passenger services between London Fenchurch Street and Tilbury, Southend and Shoeburyness.<ref name=StockBook>SVR Stock book 9th edition</ref> While hauling a passenger train on 30 January 1958, 80079 overran signals in thick fog and was in a rear-end collision with another passenger train at Dagenham, Essex. Ten people were killed and 89 were injured.<ref>Red for Danger. Rolt, L.T.C. (Retrieved 23 April 20171955, rev. 1966)</ref><ref>[http://www.railwaysarchive.co.uk/documents/MoT_Dagenham1958.pdf Ministry of Transport Accident report]</ref>

{| class="wikitable sortable mwAfter repair, 80079 continued in service at Tilbury until rendered redundant by electrification of those lines. A number of the 2-collapsible"! Locomotive !! data6-sort-type="date" | Dates !! Notes|-| 80078 || data-sort-value="21/07/1962" | July 1962 to February 1963 || Locomotive preserved|-| 80096 || data-sort-value="21/07/1962" | July 1962 to November 1962 || |-| 80100 || data-sort-value="21/07/1962" | July 1962 to July 1965 || Locomotive preserved|-| 80101 || data-sort-value="21/07/1962" | July 1962 4T class were then transferred to September 1962 || |-| 80135 || data-sort-value="21/07/1962" | July 1962 to February 1963 || Locomotive preserved|-| 80136 || data-sort-value="21/07/1962" | July 1962 to February 1963 || Locomotive preserved and has visited the SVR in preservation|-| 80098 || data-sort-value="8/09/1962" | September 1962 Western Region, with 80079 moving to November 1962 || Locomotive preserved and has visited the SVR Croes Newydd shed, Wrexham in preservation|-| 80105 || data-sort-value="8/09/1962" | September July 1962 , from where it would regularly have worked services to October 1962 || Locomotive preserved|-| 80131 || data-sort-value="8/09/1962" | September 1962 to February 1963 || |-| 80070 || data-sort-value="15/12/1962" | December 1962 to February 1963 || |-| 80102 || data-sort-value="15/12/1962" | December 1962 to June 1964 || |-| 80132 || data-sort-value="15/12/1962" | December 1962 to February 1963 || |-| 80070 || data-sort-value="09/03/1963" | March 1963 to May 1965 || |-|}Shrewsbury.

They remained until the end of passenger working, especially north John Stretton captions an image of 80079 emerging from [[BridgnorthTunnel]]on 30 August 1962 on the 7.27p.m.<ref>Bridgnorth to [[Bibliography#Books|D.J. Smith (1968)Shrewsbury]].</ref><ref name="Mag97">[[Bibliography#Books|Magner Stretton (19972010)]]</ref> It appears they featured much less regularly than the BR Standard 3MT 82000 tanks and LMR Ivatt 2MT 41000 tanks also in use from Shrewsbury at that time. ===Photographs of use in service on the Severn Valley===There is little photographic evidence of their use on the Severn Valley, with the following identified:*80070 on the daily Shrewsbury to Kidderminster pick-up freight at [[Northwood Halt|Northwood]] on 29 May 1963p.<ref>Bewdley Station waiting room90</ref>*[[BR Riddles 4MT 80072|80072]] was photographed on the line on three occasions during the very cold winter of 1962-63 (whilst allocated to Swansea East Dock, 87D). This locomotive is preserved and has visited the SVR in preservation.*80078 at Bridgnorth in 1963 working from Shrewsbury<ref> SVR News No. 15</ref>*80102 on the last day of service in September 1963<ref name="Mag97" />. ==80079 in service==80079 was built in 1954 at BR’s Brighton works and entered service at Plaistow in March of that year, before moving to Tilbury a month later.<ref name="BRDatabase">[http://www.brdatabase.info/locoqry.php?action=locodata&type=S&id=80079&loco=80079 BRDatabase] Retrieved 29 January 2015.</ref> From there, 80079 mainly worked passenger services between London Fenchurch Street and Shoeburyness.<ref name=StockBook>SVR Stock book 9th edition</ref> While hauling a passenger train on 30 January 1958, 80079 overran signals in thick fog and was in a rear-end collision with another passenger train at Dagenham, Essex. Ten people were killed and 89 were injured.<ref>Red for Danger. Rolt, L.T.C. (1955, rev. 1966)</ref><ref>[http://www.railwaysarchive.co.uk/documents/MoT_Dagenham1958.pdf Ministry of Transport Accident report]</ref> After repair, 80079 continued in service at Tilbury, before moving to the Croes Newydd shed, Wrexham in July 1962. The locomotive was withdrawn from there Croes Newydd in July 1965 and taken to [[Barry Scrapyard]], arriving in January 1966.<ref name="BRDatabase" /><ref name="BarryList"> Beckett and Hardingham (2010), The Barry List 10th Edition</ref>.

80079 was considered the best of the 14 standard tanks at Barry. An appeal by the 'Passenger Tank Fund' for funds to acquire the locomotive was published in SVR News in Autumn 1970.<ref>SVR News 18</ref> A share issue to raise the £3,000 purchase price was successfully completed by Spring 1971<ref>SVR News 19</ref> and 80079 became the 13th locomotive to leave Barry,<ref name="BarryList" /> arriving at the SVR by rail on 15 May, 1971. A video of the move "From Barry to Bridgnorth" is available on [https://youtu.be/ckKvZhxPvuE YouTube] (external link).

|20 May 1980||[[Rocket 150 ]] Rainhill || Northwich-Bold Colliery || L/S, with 35028 || ||56-9

After cosmetic restoration at Bridgnorth, 80079 was temporarily placed on display at the [[National Railway Museum | NRM Shildon ]] in March 2005.<ref>SVR News 150</ref>. It was then one of the first batch of locomotives to be displayed in [[The Engine House]] at [[Severn Valley Railway Timeline 2000-2009#2008 | opening in 2008]]. It has remained on display there since, although it has occasionally been shunted outside to be re-positioned or turned on [[Kidderminster Turntable]] (locomotives at either end of the Engine House generally face towards the centre as seen below).  <gallery mode=packed heights=200px style="text-align:left">80079_20090822.jpg|80079 in 2009 after entry in 2008, facing south80079_20110305.jpg|80079 in March 2011 after being moved80079_20110527.jpg|80079 in May 2011 after being turned to face north80079_20120708.jpg|80079 in July 2012 after being moved</gallery> {{As of|20202024}} it remains on display there80079 has been turned to face south again and is back in the 2008 location. 80079 The locomotive is owned by The [[Passenger Tank Fund]].