Category:British Rail Class 66

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Main Wikipedia article: British Rail Class 66

[edit] Sub-classes

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.
	6	66401-66405, 66410	Off-lease
66/5	95	66501-66599	Freightliner	Replaced 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 Template:Convert/mi/h - 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
	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