No. 1831 was the first experimental diesel hydraulic shunter of the London, Midland and Scottish Railway (LMS) which pioneered diesel shunting in the UK. It was introduced in 1932, built at Midland Railway's Derby Works. It was nominally a rebuild of a Midland Railway 1377 Class 0-6-0T steam locomotive of the same number, built in September 1892 by the Vulcan Foundry.[1] The frames and running gear of the original locomotive were retained.[2]

The experiment was not a success and the locomotive was put into storage in 1936. 1831 was withdrawn from service in September 1939 and converted to a mobile power unit, emerging in its new guise as MPU3 in November 1940. It was scrapped in August 1951.[3]


  1. ^ Details from Marsden, Colin (1981). The diesel shunter: a pictorial record. Oxford: Oxford Publishing Company. pp. unpaged. ISBN 0860931080. 
  2. ^ Strickland, D.C. (1982). Locomotive directory: every single one there has ever been. Camberley: Diesel and Electric Group. p. 23. ISBN 0-906375-10-X. 
  3. ^ Strickland (1982), p.23.