[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/gwr-4073-class-5080-defiant\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/gwr-4073-class-5080-defiant\/","headline":"GWR 4073 Class 5080 Defiant","name":"GWR 4073 Class 5080 Defiant","description":"before-content-x4 From Wikipedia, the free encyclopedia GWR 5080 Defiant after-content-x4 Defiant is sat waiting for 5043 to be moved off","datePublished":"2020-07-29","dateModified":"2020-07-29","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/cd810e53c1408c38cc766bc14e7ce26a?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/cd810e53c1408c38cc766bc14e7ce26a?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/b\/bd\/Defiant_parked_up_around_the_turntable.jpg\/199px-Defiant_parked_up_around_the_turntable.jpg","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/b\/bd\/Defiant_parked_up_around_the_turntable.jpg\/199px-Defiant_parked_up_around_the_turntable.jpg","height":"300","width":"199"},"url":"https:\/\/wiki.edu.vn\/en\/gwr-4073-class-5080-defiant\/","wordCount":2727,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4From Wikipedia, the free encyclopediaGWR 5080 Defiant       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Defiant is sat waiting for 5043 to be moved off its turntable road prior to being taken back to the shed       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4SpecificationsConfiguration:\u200b\u00a0\u2022\u00a0Whyte4-6-0Gauge4\u00a0ft\u00a08+1\u20442\u00a0in (1,435\u00a0mm)Leading dia.3\u00a0ft 2\u00a0in (0.965\u00a0m)Driver dia.6\u00a0ft 8+1\u20442\u00a0in (2.045\u00a0m)Length65\u00a0ft 2\u00a0in (19.86\u00a0m) over buffersWidth8\u00a0ft 11\u00a0in (2.718\u00a0m)Height13\u00a0ft 1\u00a0in (3.988\u00a0m) (Cut back from 13\u00a0ft 4+1\u20442\u00a0in (4.077\u00a0m))Loco weight79\u00a0long tons\u00a017\u00a0cwt (178,900\u00a0lb or 81.1\u00a0t)89.4 short tons fullTender weight47\u00a0long tons\u00a06\u00a0cwt (106,000\u00a0lb or 48.1\u00a0t)53.0 short tons fullFuel typeCoalFuel capacity6\u00a0long tons\u00a00\u00a0cwt (13,400\u00a0lb or 6.1\u00a0t)6\u00a0long tons 0\u00a0hundredweight (6.10\u00a0t; 6.72 short tons)Water cap.4,000\u00a0imp\u00a0gal (18,000\u00a0l; 4,800\u00a0US\u00a0gal)Firebox:\u00a0\u2022\u00a0Firegrate area29.36\u00a0sq\u00a0ft (2.728\u00a0m2)BoilerGWR Standard Number 8Boiler pressure225\u00a0lbf\/in2 (1.55\u00a0MPa)Heating surface:\u00a0\u2022\u00a0Tubes1,857.7\u00a0sq\u00a0ft (172.59\u00a0m2) (Collett)1,799.5\u00a0sq\u00a0ft (167.18\u00a0m2) (Hawksworth)\u00a0\u2022\u00a0Firebox162.7\u00a0sq\u00a0ft (15.12\u00a0m2) (Collett)163.5\u00a0sq\u00a0ft (15.19\u00a0m2) (Hawksworth)CylindersFour (two inside, two outside)Cylinder size16\u00a0in \u00d7\u00a026\u00a0in (406\u00a0mm \u00d7\u00a0660\u00a0mm)Valve gearInside cylinders: WalschaertsOutside cylinders: derived from inside cylinders via rocking bars.Valve typePiston valvesLoco brakeVacuumPerformance figuresMaximum speed25mph – (heritage railways) 45mph – (mainline, tender first) 75mph – (mainline, chimney first)Tractive effort31,625\u00a0lbf (140.68\u00a0kN)GWR 4073 Class 5080 Defiant is a GWR 4073 Class steam locomotive built for the Great Western Railway at Swindon Works in May 1939. It was originally named Ogmore Castle.Table of ContentsAllocations[edit]Renaming[edit]British Railways[edit]Withdrawal and Preservation[edit]Gallery[edit]References[edit]External links[edit]Allocations[edit]The following is a list of 5080’s shed locations during her career with the GWR and British Railways over time.[1]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Shed allocationsLocationShed codeFromOld Oak CommonPDN25 May 1936Cardiff CantonCDFAugust 1940SwindonSDN9 January 1941Cardiff CantonCDF20 March 1941SwindonSDN16 August 1949Cardiff CantonCDF (86C)13 September 1949Landore87EDecember 1955Llanelly87FSeptember 1961Renaming[edit]Prior to 5080’s transfer to Cardiff Canton from Swindon, the engine was renamed Defiant in January 1941, commemorating one of the many types of aircraft which had taken part in the Battle of Britain. The engines original name Ogmore Castle was also used on an earlier member of the class and later used by two sister engines; the name was originally allocated to 5056 before it was renamed Earl of Powis in Sept 1937. Following 5080’s renaming, the Ogmore Castle was transferred to No. 7007 (later renamed Great Western in January 1948) and 7035.British Railways[edit]After the arrival of the Britannia Class Pacifics on the Western Region, it was moved to Carmarthen in 1959, staying there until its final move to Llanelli in May 1961.Withdrawal and Preservation[edit]It was withdrawn in April 1963 and acquired by Woodham Brothers scrapyard in Barry, Vale of Glamorgan, South Wales in October that year.[2]It was sold to the Standard Gauge Steam Trust (since renamed Tyseley Locomotive Works), initially as spare parts for 7029 Clun Castle, and left as the 62nd departure from Barry in August 1974. Its restoration was completed in July 1987, and it ran for a number of years, appearing on various preserved lines such as the Llangollen Railway Easter 1996. After its boiler certificate expired in 1997, it was sent to be displayed at the Buckinghamshire Railway Centre, where it remained until May 2017 when it was returned to Tyseley.Defiant is at present stored at Tyseley Locomotive Works, but makes appearances at Tyseley’s open weekends as a static exhibit, and a group called “The Defiant Club” are raising money to fund an overhaul of No. 5080 for a return to service on the mainline to work excursion trains.[3][4]Gallery[edit]Below are a set of photos showing 5080 during its career with British Railways alongside its time at Barry Island and in preservation.Defiant passing through Port Talbot with the West Wales Express from Paddington – Pembroke Dock and Milford Haven in April 1962.Defiant minus tender at Woodham’s Scrapyard at Barry in May 1967.Defiant on the demonstration line at Tyseley Locomotive Works in August 1987.Castle Class No.5080 shunts at Glyndyfrdwy on Llangollen Railway Easter 1996 (possibly 5\/4\/96)Defiant parked up opposite classmate 5043 Earl of Mount Edgcumbe during the Clun Castle steaming event in April 2018.References[edit]External links[edit]     (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/gwr-4073-class-5080-defiant\/#breadcrumbitem","name":"GWR 4073 Class 5080 Defiant"}}]}]