British Rail Class D2/12

British Railways class D2/12
D2511, preserved at the Keighley and Worth Valley Railway
Type and origin Power type Diesel-mechanical Builder Hudswell Clarke Serial number D1201–D1210 Build date 1961 Total produced 10
Specifications Configuration: ​  •  Whyte 0-6-0 DM Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Wheel diameter 3 ft 6 in (1.067 m) Loco weight 34.20 long tons (34.75  t; 38.30 short tons) Prime mover Gardner 8L3 Transmission fluid coupling and Bostock & Bramley four-speed Power-flow SSS synchro-self-shifting gearbox [1] MU working Not fitted Train heating None
Performance figures Maximum speed 24 mph (39 km/h) Power output Engine: 204  bhp (152  kW) Tractive effort 16,100  lbf (71.6  kN)
Career Operators British Railways Class D2/12; later 2/14A; no TOPS class Numbers D2510–D2519 Axle load class Route availability 4 Retired 1967 Disposition 6 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

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

• List of British Rail classes

References

1. "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

• 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.