British Rail Class D2/12 was a class of ten locomotives commissioned by British Railways in

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

. They were

diesel powered Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engine ...

locomotives in the pre-

TOPS Total Operations Processing System (TOPS) is a computer system for managing railway locomotives and rolling stock, known for many years of use in the United Kingdom. TOPS was originally developed between the Southern Pacific Railroad (SP), S ...

period built by

Hudswell Clarke Hudswell, Clarke and Company Limited was an engineering and locomotive building company in Jack Lane, Hunslet, Leeds, West Yorkshire, England. History The company was founded as Hudswell and Clarke in 1860. In 1870 the name was changed to Hud ...

with a Gardner engine. The mechanical transmission, using a scoop control

fluid coupling A fluid coupling or hydraulic coupling is a hydrodynamic or 'hydrokinetic' device used to transmit rotating mechanical power.

and four-speed ''Power-flow SSS'' ( synchro-self-shifting) gearbox, was a Hudswell Clarke speciality. The D2/12 was mechanically similar to the earlier

British Rail Class D2/7 British Rail Class D2/7 was a locomotive commissioned by British Rail in England. It was a diesel powered locomotive in the pre- TOPS period built by Hudswell Clarke with a Gardner engine. The mechanical transmission, using a scoop control flui ...

but was of more modern appearance. The engine casing was lower, giving much better all-round visibility.

After British Rail

D2519 was employed at NCB Hatfield Main,

Doncaster Doncaster (, ) is a city in South Yorkshire, England. Named after the River Don, it is the administrative centre of the larger City of Doncaster. It is the second largest settlement in South Yorkshire after Sheffield. Doncaster is situated in ...

South Yorkshire South Yorkshire is a ceremonial county, ceremonial and metropolitan county, metropolitan county in the Yorkshire and Humber Region of England. The county has four council areas which are the cities of City of Doncaster, Doncaster and City of Sh ...

as a shunter. It was located there until at least 1984. D2511 is preserved at the

Keighley and Worth Valley Railway The Keighley & Worth Valley Railway is a heritage railway line in the Worth Valley, West Yorkshire, England, which runs from Keighley to Oxenhope. It connects to the National Rail network at Keighley railway station. History Inception ...

.Marshall, A. (2007) ''Preserved Heritage Traction'', GM Publications, Leeds, UK,

References

Sources

* Ian Allan ABC of British Railways Locomotives, 1966 edition, page 81 * D002.12 D002.12 Hudswell Clarke locomotives C locomotives Railway locomotives introduced in 1961 Standard gauge locomotives of Great Britain Shunting locomotives {{diesel-loco-stub

After British Rail

See also

References

Sources