0-6-0DM Hudswell Clarke shunter (British Rail Class D2/12) Profile and Models

0-6-0DM Hudswell Clarke shunter (British Rail Class D2/12)

D2511 at Haworth on the Keighley & Worth Valley Railway in May 1998. ©Hugh Llewelyn

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, 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. D2519 was employed at NCB Hatfield Main, Doncaster, South Yorkshire as a shunter. It was located there until at least 1984. D2511 is preserved at the Keighley and Worth Valley Railway.

(Information provided via Wikipedia)

Type of Locomotive



Hudswell Clarke

Build Dates


Total Built


Tractive Effort

16,100 lbf

Power Output

204 hp

Top Speed

24 mph

Wheel Configuration


Operated By

British Railways
National Coal Board

Main Duties


In Service Until


Surviving Examples