- British Rail Class EF1
Infobox Locomotive
name = British Rail Class EF1
powertype = Electric
caption =
builder = flagicon|GBR North Eastern Railway
serialnumber =
buildmodel =
builddate =1914 -1919
totalproduction = 10
whytetype =
aarwheels =Bo-Bo
uicclass =
gauge = 1435 mm
leadingsize =
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fueltype =
fuelc
tenderc
consumption =
watercons =
electricsystem = 1500V DC
collectionmethod = Pantograph
primemover =
enginetype = 4x275hp, Siemens
aspiration =
displacement =
boiler =
boilerpressure =
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firearea =
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superheaterarea =
cylindercount =
cylindersize =
rearcylindersize =
hpcylindersize =
lpcylindersize =
valvegear =
transmission =
topspeed =
poweroutput = 820 kW (1100 hp)
tractiveeffort =
factorofadhesion =
locobrakes =
trainbrakes =
railroad = North Eastern Railway
LNER
British Railways
railroadclass = LNER & BR: EB1
numinclass = 10
roadnumber = NER: 3-12
LNER: 6490-6499
BR: 26502-26511
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retiredate = April1964
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disposition = |The British Rail Class EF1 ("Electric Freight 1") was a class of electrically powered locomotives used by
British Rail inEngland . They were used during the pre-TOPS period. They were also classified asBritish 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 atMiddlesbrough . 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 aDiesel-electric , using a 1,000hp Beardmore diesel engine driving anEnglish 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.
It was expected that all the locomotives would be similarly modified but this did not happen and the remaining locos were classified as EF1 In 1949, number 26510 was moved to
Ilford Depot (Eastern Region) for use as a shunter. Number 26510 was transferred to departmental stock (as DS100) in 1959 and withdrawn in 1964.References
* The Electric Locomotives of the North Eastern Railway by K. Hoole, published by the Oakwood Press in 1988, ISBN 0 85361 367 2
* [http://www.lner.info/locos/Electric/ef1eb1.shtml The NER Electric Bo-Bo Class EF1 & EB1 Locomotives]
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