British Rail Class D2/7

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British Rail Class D2/7
A Hudswell Clarke industrial diesel locomotive similar to the British Rail Class D2/7
Power type Diesel-mechanical
Builder Hudswell Clarke
Serial number D898–D902, D938–D942
Build date 1955–1956
Configuration 0-6-0 DM
UIC classification C
Gauge ft 8+12 in (1,435 mm)
Wheel diameter 3 ft 6 in (1.067 m)
Locomotive weight 36.35 long tons (36.93 t)
Prime mover Gardner 8L3
Transmission Mechanical, SSS Powerflow three-speed gearbox
Multiple working Not fitted
Top speed 14 mph (23 km/h)
Power output Engine: 204 bhp (152 kW)
Tractive effort 16,100 lbf (71.6 kN)
Train heating None
Train brakes None
Career British Railways
Class D2/7; later 2/14; no TOPS class
Number 11116–11120, 11144–11148; D2500–D2509 from 1958 to 1962
Axle load class Route availability 4
Retired 1967
Disposition All scrapped

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 fluid coupling and three-speed Power-flow SSS (synchro-self-shifting) gearbox,[1] was a Hudswell Clarke speciality.

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