Class 66 for passenger trains?

Class 66 Diesel Locomotives Nos. 66200 and 66019 at Carlisle, originally uploaded by allan5819.

Rated at 3,300 hp, these diesel locomotives intended for freight services are about as powerful as a Deltic or a four-car Voyager set. Although top speed is only 75mph, they would still give excellent performance on stopping trains with up to ten cars, running on services with stations about 15 miles apart, where there is little opportunity for high speed running anyway.

As the locomotives are not normally used for passenger trains they can not provide electric train heating. They would either have to be adapted or the train heating/air conditioning power would have to come from a generator van.

Class 66 on passenger train