Unusual locos in Multiple
 

Does anybody have details of unusual loco pairings using Blue Star on Passenger, Freight and Charter Trains?

In the early 70,s the Passenger services on the Highland main line used 24 + 26 combination on a regular basis.

DRS do sometimes use class 20, and 37 in multiple on flask trains. BR ScR did use class 27's on push pull trains in the 1970's one loco at each end of the train, with the coaches through wired for the blue star working. Some present day test trains are worked in push pull mode with blue star modified Mk2 DBSO vehicles.