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British Rail Class D2/12

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British Railways class D2/12
D2511, preserved at the Keighley and Worth Valley Railway
Type and origin
Power typeDiesel-mechanical
BuilderHudswell Clarke
Serial numberD1201–D1210
Build date1961
Total produced10
Specifications
Configuration:
 • Whyte0-6-0 DM
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Wheel diameter3 ft 6 in (1.067 m)
Loco weight34.20 long tons (34.75 t; 38.30 short tons)
Prime moverGardner 8L3
Transmissionfluid coupling and Bostock & Bramley four-speed Power-flow SSS synchro-self-shifting gearbox[1]
MU workingNot fitted
Train heatingNone
Performance figures
Maximum speed24 mph (39 km/h)
Power outputEngine: 204 bhp (152 kW)
Tractive effort16,100 lbf (71.6 kN)
Career
OperatorsBritish Railways
ClassD2/12; later 2/14A; no TOPS class
NumbersD2510–D2519
Axle load classRoute availability 4
Retired1967
Disposition6 scrapped, 4 sold NCB (3 scrapped, 1 preserved)

British Rail Class D2/12 was a class of ten locomotives commissioned by British Railways in England. They were diesel powered locomotives in the pre-TOPS period built by Hudswell Clarke with a Gardner engine. The mechanical transmission, using a scoop control fluid coupling and four-speed Power-flow SSS (synchro-self-shifting) gearbox,[1] was a Hudswell Clarke speciality.

The D2/12 was mechanically similar to the earlier British Rail Class D2/7 but was of more modern appearance. The engine casing was lower, giving much better all-round visibility.

After British Rail

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D2519 was employed at NCB Hatfield Main, Doncaster, South Yorkshire[2] as a shunter. It was located there until at least 1984.

D2511 is preserved at the Keighley and Worth Valley Railway.[3]

See also

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References

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  1. ^ a b "Durham Mining Museum - Colliery Engineering". www.dmm.org.uk.
  2. ^ Industrial Locomotives 1982 including preserved and minor railway locomotives. Industrial Railway Society. 1982. p. 244. ISBN 0-901096-43-1.
  3. ^ Marshall, A. (2007) Preserved Heritage Traction, GM Publications, Leeds, UK, ISBN 978-0-9555581-0-8

Sources

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  • Ian Allan ABC of British Railways Locomotives, 1966 edition, page 81
  • Strickland, David C. (1982). Locomotive Directory, every single one there has ever been. Camberley, Surrey: Diesel & Electric Group. p. 41. ISBN 0-906375-10-X.