British Rail Janus

Janus and Taurus were two shunting locomotives by the Yorkshire Engine Company and loaned to British Railways for demonstrations. However, BR did not buy any production versions after testing. At least one other Yorkshire Engine Company locomotive was loaned to British Railways in the 1960s.

Yorkshire Engine Company ‘Janus’
Typical Janus locomotive at a steelworks.
Type and origin Power type Diesel-electric Builder Yorkshire Engine Company Model Janus
Specifications Configuration: ​  • UIC C Wheel diameter 3 ft 8 in (1.118 m) Loco weight 48 long tons (49 t) Prime mover 2 Rolls Royce C6SFL engines Traction motors Rolls Royce
Performance figures Top speed 23 mph (37 km/h) Power output 400 hp (300 kW) Tractive effort 30,000 lbf (133.4 kN)