British Rail Class EF1

The British Rail Class EF1 (Electric Freight 1) was a class of electrically powered locomotives used by British Rail in England. They were used during the pre-TOPS period. They were also classified as British Rail Class EB1 for a short period of time, although only a single locomotive was completely modified to EB1 condition.

These locomotives were built by the North Eastern Railway to haul coal trains from the mines at Shildon to the docks at Middlesbrough. During the 1920s the coal traffic declined and some of the locomotives became surplus to requirements. In 1928 a plan was devised to convert one of them to a Diesel-electric, using a 1,000 hp Beardmore diesel engine driving an English Electric generator. This plan did not come to fruition.

Electric traction on the Shildon line was discontinued in 1935 but the locomotives were retained for possible future use. Number 11 (later BR 26510) was rebuilt in 1942 for use on the Manchester-Sheffield line, and given the classification EB1. Horsepower was increased from 1,100 to 1,256 and the twin pantographs were replaced by a single central one.

In common with other LNER electric locomotives, no classification was given to these locomotives until 4 October 1945, when nos. 3-12 were all classified EB1 (Electric Banking 1).^[1] It was expected that all the locomotives would be similarly modified but this did not happen and the remaining locos were classified as EF1 (Electric Freight 1).^[1] In 1949, number 26510 was moved to Ilford Depot (Eastern Region) for use as a shunter.^[1] Number 26510 was transferred to departmental stock (as DS100) in 1959 and withdrawn in 1964.^[2]

Notes

References

• Boddy, M.G.; Fry, E.V.; Hennigan, W.; Hoole, Ken; Mallaband, P.; Neve, E.; Price, J.H.; Proud, P. et al. (April 1990). Fry, E.V.. ed. Locomotives of the L.N.E.R., part 10B: Railcars and Electric Stock. Lincoln: RCTS. ISBN 0 901115 66 5. 
• Hoole, K. (1988). The Electric Locomotives of the North Eastern Railway. Locomotion Papers. Headington: Oakwood Press. ISBN 0-85361-367-2. LP167. 
• The NER Electric Bo-Bo Class EF1 & EB1 Locomotives