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Concept
British Rail Class 70 (diesel)
Résumé
The British Rail Class 70 is a Co-Co mainline freight GE PowerHaul locomotive series manufactured by General Electric in Erie, Pennsylvania. They are operated in the United Kingdom by Freightliner and Colas Rail. These locomotives replaced the Class 59 as having the highest tractive effort of any Co-Co Diesel locomotive in use in the United Kingdom when they were introduced.
GE PowerHaul
In November 2007, Freightliner announced Project Genesis, a procurement plan for 30 freight locomotives from General Electric (GE). The locomotives ordered were intended to match older types in terms of haulage capacity whilst at the same time being more fuel-efficient. The project was a collaborative effort between Freightliner and GE, with input from drivers on the cab design. The locomotives utilize a GE PowerHaul P616 diesel engine rated at . The locomotive meets EU Tier IIIa emission regulations. Freightliner expects that the locomotive's efficiency is 7% better than contemporary models, with a further 3% increase in efficiency whilst braking; regenerative braking is used to supply the energy to power auxiliary motors.
The locomotives were given the Class 70 TOPS code.
The new locomotives are similar in appearance to a Class 58; a hood unit design with a narrow body typical of locomotive types in use in North America, the cabs are accessed from the rear via exterior walkways on the narrow part of the hood. The distinctive front end shape is due to crashworthiness features It is also fitted with air conditioning and acoustic insulation to improve the crew's environment, making it an improvement over the Class 66.
Construction of the first two locomotives at GE's Erie, Pennsylvania plant was completed in July 2009, with both locomotives tested during the same month. The original plan was for two months of testing, with the locomotives then spending a further three weeks being modified where necessary and prepared for transport to the United Kingdom.
The first two locomotives arrived at Newport Docks on 8 November 2009.
Source officielle
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