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LMS diesel shunters

 

LMS diesel shunters

The London, Midland and Scottish Railway (LMS) pioneered the use of diesel shunting locomotives in Great Britain. The variety of experimental and production diesel shunters produced by the LMS is summarised below. In each heading, the first number(s) carried are shown first, with subsequent renumbering(s) following the "/".

Contents

  • Note on numbering 1
  • 1831 2
  • 7400–7408 / 7050–7058 3
  • 7059–7068 4
  • 7069–7129 / 12000–12042 5
  • Departmental 5519 / ZM9 6
  • Departmental 2 / ED1 7
  • Unnumbered plant locomotives 8
  • Trial locomotives 9

Note on numbering

The initial experimental diesel shunter retained the number of the steam locomotive that it was nominally rebuilt from. However, when the LMS decided to procure a further nine prototype locomotives from a variety of manufacturers, it allocated the number series 7400–7408 to them. It was soon realised that this number range was too limited for the number of production diesel shunters that were anticipated, and a new series commencing at number 7050 was used. Only 7050–7053/7058 carried their original numbers (7400–7403/7408), and they were all renumbered in November/December 1934, some before they had actually entered service.

1831

This was the original experimental shunter, nominally rebuilt from a Midland Railway steam locomotive originally built in September 1892 by the Vulcan Foundry, whose number it inherited (1831), though very little of the steam locomotive was actually re-used. Of itself, it was not very successful, but it did provide useful data for the further development of the diesel shunter design. It was withdrawn from service in September 1939 and converted to a mobile power unit, emerging in its new guise as MPU3 in November 1940.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 the 1950s (sources disagree exactly when).

7400–7408 / 7050–7058

For detailed information see the main articles:

7059–7068

These were 0-6-0 diesel-electric shunters built by Armstrong Whitworth in 1936.

7069–7129 / 12000–12042

Details of the four classes allocated numbers in this range are included on other pages, as follows:

NB: Production of the last-mentioned class continued after Nationalisation, with the following two locomotives emerging as M7130 and M7131 (later 12043/12044) and the remainder carrying BR numbers 12045–12138 from new. Although allocated TOPS Class 11, none of these locomotives were renumbered. When 12082 was re-registered for use on the mainline, it was allocated TOPS number 01553 in the ex-industrial registered shunters list.

Departmental 5519 / ZM9

Departmental 2 / ED1

This locomotive was very similar to the Great Western Railway's diesel locomotive number 1.

Unnumbered plant locomotives

Trial locomotives

The LMS used a number of locomotives on loan from their manufacturers for trials. These locomotives were not allocated LMS numbers, and details of their use and disposal

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