The steam locomotives of British Railways were used by British Railways over the period 1948–1968. The vast majority of these were inherited from its four constituent companies, the "Big Four".
The London and North Eastern Railway (LNER) produced several classes of locomotive, mostly to the designs of Nigel Gresley, characterised by a three-cylinder layout with a parallel boiler and round-topped firebox. It produced the most famous locomotive of its day, 4468 'Mallard', the holder of the world steam locomotive speed record. It also built the world-famous 4472 'Flying Scotsman'. However, its locomotive inheritance was much greater than just the 'A4 Class', it also produced highly successful mixed-traffic and freight designs.
The War Department was the United Kingdom government department responsible for the supply of equipment to the armed forces of the United Kingdom and the pursuance of military activity. In 1857, it became the War Office. Within the War Office, the name 'War Department' remained in use to describe the military transport services of the War Department Fleet and the War Department Railways.
The London, Midland and Scottish Railway (LMS) Stanier Class 8F is a class of steam locomotives designed for hauling heavy freight. 852 were built between 1935 and 1946, as a freight version of William Stanier's successful Black Five, and the class saw extensive service overseas during and after the Second World War.
The War Department (WD) "Austerity" 2-8-0 is a type of heavy freight steam locomotive that was introduced in 1943 for war service. A total of 935 were built, making this one of the most-produced classes of British steam locomotive. They were nicknamed Ozzies by the railwaymen.
The Great Western Railway (GWR) 2884 Class is a class of 2-8-0 steam locomotive. They were Collett's development of Churchward's earlier 2800 Class and are sometimes regarded as belonging to that class.
The United States Army Transportation Corps S160 Class is a class of 2-8-0 Consolidation steam locomotive, designed for heavy freight work in Europe during World War II. A total of 2,120 were built and they worked on railroads across much of the world, including Africa, Asia, all of Europe and South America.
The War Department (WD) "Austerity" 2-10-0 is a type of heavy freight steam locomotive that was introduced during the Second World War in 1943.
The Hunslet Austerity 0-6-0ST is a class of steam locomotive designed by Hunslet Engine Company for shunting. The class became the standard British shunting locomotive during the Second World War, and production continued until 1964 at various locomotive manufacturers.
The London and North Eastern Railway (LNER) J94 Class is a class of steam locomotive that was formed when 75 former "Austerity" 0-6-0STs were purchased by the LNER in 1946 from the War Department.
The Statens Järnvägar Class G11 was a class of two ex-British War Department Austerity 2-8-0 steam locomotives, numbered 1930 and 1931. They were both purchased in 1953 from Nederlandse Spoorwegen.
The 1948 Locomotive Exchange Trials were organised by the newly nationalised British Railways (BR). Locomotives from the former "Big Four" constituent companies were transferred to and worked on other regions. Officially, these comparisons were to identify the best qualities of the four different schools of thought of locomotive design so that they could be used in the planned BR standard designs. However, the testing had little scientific rigour, and political influence meant that LMS practice was largely followed by the new standard designs regardless. However, the trials were useful publicity for BR to show the unity of the new British Railways. To record the locomotive performances, one of three dynamometer cars were included in the train directly behind the locomotive.
The British Railways (BR) ex-WD Austerity 2-10-0 Class was a class of 25 2-10-0 steam locomotives of the WD Austerity 2-10-0 type purchased in 1948 from the War Department.
The War Department ex-LMS Fowler Class 3F consisted of 8 LMS Fowler Class 3F 0-6-0T steam locomotives requisitioned in 1940 from the London Midland and Scottish Railway (LMS).
The Ferrovie dello StatoClass 737 was a class of steam locomotive which consisted of 15 ex-British War Department (WD) 2-8-0 locomotives of the LMS Stanier Class 8F type which were purchased in 1946.
War Department "Austerity" 2-8-0, WD No. 79257 is a preserved British steam locomotive. It is the only survivor of its type. Originally built by the Vulcan Foundry in 1945, works No. 5200, it was given the WD No. 79257. During the liberation of Europe, it was transferred to mainland Europe with the British Army.
War Department (WD) Austerity 2-10-0 No. 73755 Longmoor is a preserved steam locomotive.
The British Railways (BR) ex-WD Austerity 2-8-0 was a class of 733 2-8-0 steam locomotives designed for heavy freight. These locomotives of the WD Austerity 2-8-0 type had been constructed by the War Department, as war locomotives 1943–1945. After the war, they were surplus and so in 1946 the LNER bought 200 of them, classifying them as LNER Class O7, and by the end of 1947 when the LNER was nationalised, had taken another 278 O7s on loan. After nationalisation, BR purchased 533 more 2-8-0s, including all of those on loan, giving a class total of 733. As many of these needed overhauling before being put to work, they were activated slowly. BR chose to reclassified from LNER Class O7 and renumbered them from the 6xxxx LNER series in the 90000–732 series for BR standard designs.
The NS 4300 was a series of steam locomotives of the Dutch Railways (NS), taken over from the British War Department.
The NS 5000 was a series of steam locomotives of the Dutch Railways (NS), taken over from the British War Department.
