This article contains weasel words: vague phrasing that often accompanies biased or unverifiable information.(August 2024) |
The Great Western Railway (GWR) experimented with oil burning steam locomotives at two points in its history. A single experimental tank engine was constructed to burn oil in 1902, and 37 engines of four different classes were converted to burn oil between 1946 and 1950. Neither experiment resulted in the long-term use of oil as fuel for steam locomotives. A single pannier tank locomotive was also converted under British Rail in 1958.
GWR No. 101 was an experimental 0-4-0 side-tank locomotive built at Swindon Works under the direction of Churchward in June 1902. Initially built as an oil-burning locomotive, it was rebuilt in 1905 as a coal burner, with the cab backplate replaced by a bunker. No further engines were built to this design, and the locomotive was withdrawn and scrapped in 1911. [1]
GWR locomotives had been designed to take advantage of high quality Welsh steam coal. Following the end of World War II, coal supplies were scarce and of poor quality as the best coal was exported. GWR CME Hawksworth tried using oil as a fuel in steam locomotives. He modified a number of locomotives of different classes, and the results were successful enough that it was planned to turn Cornwall into an oil fired area. The Government decided that such a scheme should be extended across the country, and asked Hawksworth to provide details of the technology to other railway companies. Several million pounds were spent on the scheme before it foundered on the uneconomic cost of the imported fuel, which had to be purchased using scarce foreign exchange. All the locomotives involved were reconverted to burn coal. [2]
In 1946, one Hall class and one Castle class 4-6-0 , and several 2800 class 2-8-0 engines working in South Wales were modified. (Plans to convert some 4200 class 2-8-0 T tank engines were not carried out.) The fireboxes were modified by replacing the firebars with a plate that had openings for the air supply, lining part of the firebox with high alumina firebrick to cope with the change in combustion, and mounting a single burner at the front of the firebox that directed the oil, atomized by steam, upwards towards the back of the firebox. Initial problems with the burner saw them replaced by the Laidlaw-Drew type. Tenders were altered to hold a 1,800 imp gal (8,200 L) tank for oil, with steam heating coils to make the heavy grade of oil used thin enough to flow. The success of the initial conversion saw the scheme extended to further Castle and Hall class locomotives, for work in Cornwall. [3]
Oil burners had their own maintenance requirements, including the daily removal and cleaning of the atomizers to keep them effective. Overall, though, they were easier for the firemen to maintain and run than coal fired engines. Depots were re-equipped for refuelling the engines at Bristol Bath Road, Bristol St Philip's Marsh, Cardiff Canton, Didcot, Gloucester, Llanelly, Newport Ebbw Junction, Newton Abbot, Old Oak Common, Plymouth Laira, Reading, Severn Tunnel Junction, Swindon, and Westbury. Work at Banbury and Swansea was cancelled before completion. [4]
A total of thirty-seven locomotives were converted to burn oil, starting with No. 5955 Garth Hall in June 1946 and continuing into the next year. Some locomotives carried new numbers while they were oil burners. Reconversion to coal firing started in September 1948, and was complete by April 1950. Renumbered engines went back to their old numbers. [5]
All engines were converted back to coal firing by 1950, and regained their original numbers. However, the 1400s were never renumbered back to 4800s. [5] [6]
Class | Original number | Oil burner number | Date converted | Date reverted | Name |
---|---|---|---|---|---|
2800 | 2832 | 4806 | Nov 1946 | Apr 1949 | |
2800 | 2834 | 4808 | Jul 1947 | Jan 1950 | |
2800 | 2839 | 4804 | Nov 1946 | Oct 1948 | |
2800 | 2845 | 4809 | Aug 1947 | Dec 1949 | |
2800 | 2847 | 4811 | Sep 1947 | Jun 1949 | |
2800 | 2848 | 4807 | Jun 1947 | Jul 1949 | |
2800 | 2849 | 4803 | Nov 1946 | Apr 1949 | |
2800 | 2853 | 4810 | Aug 1947 | Jun 1949 | |
2800 | 2854 | 4801 | Nov 1946 | Feb 1949 | |
2800 | 2862 | 4802 | Nov 1946 | Sep 1948 | |
2800 | 2863 | 4805 | Nov 1946 | Mar 1949 | |
2800 | 2872 | 4800 | Nov 1946 | Sep 1948 | |
2884 | 2888 | 4850 | Nov 1946 | Sep 1948 | |
2884 | 3813 | 4855 | Jul 1947 | Jun 1949 | |
2884 | 3818 | 4852 | Nov 1946 | Sep 1948 | |
2884 | 3820 | 4856 | Jul 1947 | Jun 1949 | |
2884 | 3831 | 4857 | Aug 1947 | Mar 1949 | |
2884 | 3837 | 4854 | Jun 1947 | Aug 1949 | |
2884 | 3839 | 4853 | Jul 1947 | Nov 1949 | |
2884 | 3865 | 4851 | Nov 1946 | Apr 1949 | |
Castle | 100A1 | [lower-alpha 1] | Jan 1947 | Sep 1948 | Lloyds |
Castle | 5039 | [lower-alpha 1] | Dec 1946 | Sep 1948 | Rhuddlan Castle |
Castle | 5079 | [lower-alpha 1] | Jan 1947 | Oct 1948 | Lysander |
Castle | 5083 | [lower-alpha 1] | Dec 1946 | Nov 1948 | Bath Abbey |
Castle | 5091 | [lower-alpha 1] | Oct 1946 | Nov 1948 | Cleeve Abbey |
4300 | 6320 | [lower-alpha 1] | Mar 1947 | Aug 1949 | |
Hall | 4907 | 3903 | May 1947 | Apr 1950 | Broughton Hall |
Hall | 4948 | 3902 | May 1947 | Sep 1948 | Northwick Hall |
Hall | 4968 | 3900 | May 1947 | Mar 1949 | Shotton Hall |
Hall | 4971 | 3901 | May 1947 | Apr 1949 | Stanway Hall |
Hall | 4972 | 3904 | May 1947 | Oct 1948 | Saint Brides Hall |
Hall | 5955 | 3950 | Jun 1946 | Oct 1948 | Garth Hall |
Hall | 5976 | 3951 | Apr 1947 | Nov 1948 | Ashwicke Hall |
Hall | 5986 | 3954 | May 1947 | Feb 1950 | Arbury Hall |
Hall | 6949 | 3955 | May 1947 | Apr 1949 | Haberfield Hall |
Hall | 6953 | 3953 | Apr 1947 | Sep 1948 | Leighton Hall |
Hall | 6957 | 3952 | Apr 1947 | Mar 1950 | Norcliffe Hall |
In April 1958, under British Rail, GWR 5700 Class 0-6-0 PT No. 3711 was converted to burn oil, with a fuel tank installed in the bunker. The conversion was done by Robert Stephenson and Hawthorns. [7]
In January 2024 it was announced[ by whom? ] that 4965 Rood Ashton Hall during its next overhaul alongside undergoing a retube and a reduction in its width for gauging reasons, consideration was being made to have 4965 converted to oil burning. [8] It was confirmed[ by whom? ] in March 2024 that 4965 will be converted to oil burning with its overhaul commencing in March 2024. [9]
The 4073 or Castle Class are 4-6-0 steam locomotives of the Great Western Railway, built between 1923 and 1950. They were designed by the railway's Chief Mechanical Engineer, Charles Collett, for working the company's express passenger trains. They could reach speeds of up to 100 mph (160 km/h).
George Jackson Churchward was an English railway engineer, and was chief mechanical engineer of the Great Western Railway (GWR) in the United Kingdom from 1902 to 1922.
The first Locomotives of the Great Western Railway (GWR) were specified by Isambard Kingdom Brunel but Daniel Gooch was soon appointed as the railway's Locomotive Superintendent. He designed several different 7 ft 1⁄4 in broad gauge types for the growing railway, such as the Firefly and later Iron Duke Class 2-2-2s. In 1864 Gooch was succeeded by Joseph Armstrong who brought his standard gauge experience to the workshops at Swindon. To replace some of the earlier locomotives, he put broad gauge wheels on his standard gauge locomotives and from this time on all locomotives were given numbers, including the broad gauge ones that had previously carried just names.
The Great Western Railway 4900 Class or Hall Class is a class of 4-6-0 mixed-traffic steam locomotives designed by Charles Collett for the Great Western Railway. A total of 259 were built at Swindon Works, numbered 4900–4999, 5900–5999 and 6900–6958. The LMS Stanier Class 5 4-6-0 and LNER Thompson Class B1 both drew heavily on design features of the Hall Class. After nationalisation in 1948, British Railways gave them the power classification 5MT.
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Charles Benjamin Collett was Chief Mechanical Engineer of the Great Western Railway from 1922 to 1941. He designed the GWR's 4-6-0 Castle and King Class express passenger locomotives.
Frederick William Hawksworth, was the last Chief Mechanical Engineer of the Great Western Railway (GWR).
The GWR 0-6-0PT, is a type of steam locomotive built by the British Great Western Railway with the water tanks carried on both sides of the boiler, in the manner of panniers. They were used for local, suburban and branch line passenger and goods traffic, for shunting duties, and as banker engines on inclines. The early examples, such as the 1901 and 2021 classes, were rebuilt from saddle or side tanks when the locos received a Belpaire firebox – this type of firebox has a square top and is incompatible with a curved saddle tank. This process mostly took place during the tenure at Swindon Works of George Jackson Churchward. Only a very small number of saddle tank locomotives escaped rebuilding as panniers, notably the 1361 Class built new under Churchward in 1910, by which date a few of the 1813 Class had already been rebuilt as pannier tanks.
The GWR was the longest-lived of the pre-nationalisation railway companies in Britain, surviving the 'Grouping' of the railways in 1923 almost unchanged. As a result, the history of its numbering and classification of locomotives is relatively complicated. This page explains the principal systems that were used.
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The GWR Class 850 was an extensive class of small 0-6-0ST locomotives designed by George Armstrong and built at the Wolverhampton railway works of the Great Western Railway between 1874 and 1895. Aptly described as the GWR equivalent of the LB&SCR "Terrier" Class of William Stroudley, their wide availability and lively performance gave them long lives, and eventually they were replaced from 1949 by what were in essence very similar locomotives, the short-lived 1600 Class of Frederick Hawksworth, which in the headlong abandonment of steam outlived them by a mere seven years or so.
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