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British Rail Class 11: Map


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The British Rail Class 11 was applied to a batch of diesel shunting locomotives built from April 1945 to December 1952, based on a similar earlier batch built by the London, Midland and Scottish Railway (LMS) between 1939 and 1942.



The fourteen locomotives were built for the War Department, with the first ten subsequently going the Nederlandse Spoorwegen as NS 501–510. LMS numbers 7120–7129 went straight into LMS stock, with 7129 being the last diesel shunter to be built for the LMS. British Railways continued to build the class from 1948 to 1952, using numbers M7130–M7131 and 12045–12138. 7120–7129 and M7130–M7131 became BR numbers 12033–12044. The whole class of 12033–12138 became Class 11. Locomotives up to 12102 were built at LMS/BR Derby and 12103–12138 at BR Darlington.

Export locomotives

Close to 100 almost identical machines were built by English Electric and supplied to Nederlandse Spoorwegen (NS) as their 500 Class & 600 Class diesel locomotives. Sixty-five of the 600 Class locomotives were built by English Electric between 1950 and 1957, numbered 601–665, at either Dick, Kerr & Co. Works (601–610) in Prestonmarker or Vulcan Foundrymarker Works (remainder) in Newton-le-Willowsmarker.

Another export order was to Australia, with 16 locomotives built for use on broad gauge in 1951. Victorian Railways bought ten as the F class, while six were bought by the State Electricity Commission of Victoria.

Technical details

The diesel engine is an English Electric 6-cylinder, 10-inch bore by 12-inch stroke (254 mm by 305 mm); 4-stroke, 6KT and the traction motors are two: EE506 axle-hung, nose-suspended, force-ventilated traction motors with 21.7:1 double reduction gear drive. The main generator is an English Electric EE801, 441 A at 430 V.

Post-BR use

The following locomotives are, or were, at Harry Needle Railroad Company (HNRC):

  • 12074 Scrapped
  • 12082 Operational. It has been re-registered as 01553, in TOPS Class 01/5. It carries both numbers
  • 12088 Operational
  • 12098 Scrapped


The following Class 11 diesel shunters are preserved:

See also


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