page_title: Yorkshire Engine Company Janus
section_title: Service
hierarchical_section_title: Yorkshire Engine Company Janus / Service
caption_attribution_description: English: A Yorkshire Engine Company 'Janus' diesel locomotive shunting at Corus' Scunthorpe site.
context_page_description: The Yorkshire Engine Company Janus was a line of 0-6-0 wheel arrangement, diesel-electric locomotives that weighed 48 long tons and had a maximum speed of 23 mph. The two Rolls-Royce C6SFL diesel engines gave a total power output of 400 hp. Each engine had its cooling system at the outer end, and its generator at the inner end. There were two traction motors, each being powered by one generator, thus simplifying the electrical system.
context_section_description: Eventually, 102 Janus locomotives were built: mostly for the British steel industry, but other customers included Imperial Chemical Industries (12 locomotives), the Port of London Authority (10), and the National Coal Board (7). Three locomotives were exported: one to Jamaica, and two to the Indian Fertilizer Corporation. The Indian locomotives were 1,000 mm (3 ft 3 ³⁄₈ in) metre gauge, and were the only narrow gauge units built. In addition, three modified Janus locomotives – 3 ft 6 in (1,067 mm) gauge on Bo-Bo trucks – were exported to British Guyana. 
  Later locomotives had their Rolls-Royce engine uprated by 10 per cent to 220 hp (160 kW) each. After Rolls-Royce entered the industrial locomotive manufacturing business, YEC started to offer their locomotives with Cummins diesel engines; seven Janus locomotives were built with pairs of 250 hp (190 kW) Cummins diesels – all for Appleby Froddingham Steel works.
  The name Janus is from the two-faced god Janus: the locomotive was symmetrical with two 'faces'. The similarity in power and speed would indicate that this type of locomotive could have been use in a similar role to the British Rail Class 08 shunter. In recent years the Class 08 shunters owned by EWS have replaced Janus locomotives on some industrial railways.
caption: Janus type locomotive 51 at Corus' Scunthorpe steelworks, 8 September 2009.
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