Category:British Rail Class 66

**British Rail Class 66**
	class of Co′Co′ diesel-electric locomotives
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	Wikipedia
Instance of	locomotive class;
Subclass of	diesel-electric locomotive; Type 5 Locomotive; EMD JT42CWR;
Location	United Kingdom;
Country of origin	Canada;
Operator	DB Cargo; Freightliner; GB Railfreight; Direct Rail Services; Colas Rail; Advenza Freight; fastline;
Manufacturer	Electro-Motive Diesel (1998–2014);
Service entry	1998;
Powered by	EMD 710 (12);
Total produced	446;
Authority file
	Q867817;
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This is a main category requiring frequent diffusion and maybe maintenance. As many pictures and media files as possible should be moved into appropriate subcategories.

For locomotives in France, see Euro Cargo Rail Class 66.

Sub-classes[edit]

Minor differences between different orders, and different operating companies have resulted in a number of subclasses being defined:

Subclass	Number built (year)	TOPS number range	Operators	Comments
66/0	250	66001-66250	DBS	The original order of 250; the first loco arrived at Immingham in 1998
66/3	5	66301-66305	Fastline	Ordered to service a coal contract
66/4	24	66411-66434	DRS	Some are used on nuclear flask traffic - for which they are overpowered.
66/4	6	66401-66405, 66410	Off-lease
66/5	95	66501-66599	Freightliner	Replaced en:Class 47s on Intermodal freight. 66521 written-off after Great Heck crash, 66582, 66583, 66584, 66586 are active in Poland.
66/6	25	66601-66625	Freightliner	Top speed of 65 mph - reduced gearing to cope with heavier oil, aggregates and cement trains.
66/7	32	66701-66732	GBRf	One operates on engineering work for Metronet on London's underground lines
66/8	2	66841-66842	Colas Rail	Former DRS 66/4
66/8	2	66843-66844	Off-lease
66/9	7	66951-66957	Freightliner	A lower emission variant - fuel capacity reduced due to increase mass of other components - the overall mass remains the same