The history of 'the twins'

British Railways Class 16/1

From Wikipedia, the free encyclopedia under the Creative Commons Attribution-ShareAlike License

British Railways Class D16/1, numbers 10000 and 10001 were the first mainline diesel locomotives in Great Britain. They were built by the London Midland and Scottish Railway at it Derby Works, using the EE16SVT 1,600hp diesel engine with electric transmission, in association with English Electric and the Vulcan Foundry with whom the LMS had had a long working relationship.

Early years

LMS 10000 was officially presented to the press at Derby Works in December 1947, having had its maiden run in November 1947, after several weeks of proving trials entered service on the Midland route in February 1948. 10000 was outshopped only two months before nationalisation, and when 10001 appeared in July 1948 it had British Railways livery. 

They operated over a number of routes out of St Pancras or Euston but their low power outputs meant they were less than inspiring when used on heavily loaded or express services.


In March 1953 they were both transferred to the Southern Region of British Railways to allow direct comparison to be made between them and the SR's 10201, 10202 and 10203 and remained there until spring 1955. They (and the SR locomotives) were sent to Derby where they were overhauled and received green livery and then ran side by side on London Midland Region duties. Trials of both types proved interesting, with the Southern Region locomotives developing into the English Electric Type 4 design for British Railways (later British Railways Class 40).


Both locos were allocated toWillesden. 10000 was withdrawn in 1963 and scrapped at Cashmores, Great Bridge, in January 1968. 10001 was withdrawn in 1968 and scrapped at Cox & Danks, North Acton, in February 1968.