I thought DB were losing the Mendip contract to Freightliner, which is why the OP may have asked about 70s? But then again, FL could just put 66s on too...Sure dB would just stick 66s on instead but Colas 70 has worked my local aggregate traffic at Newhaven from Acton once upon a time so no reason why they couldn't, if they have the drivers
You would have to use 2 66s on a jumbo which would then mean losing a couple of wagons due to length of some loopsI thought DB were losing the Mendip contract to Freightliner, which is why the OP may have asked about 70s? But then again, FL could just put 66s on too...
https://www.railforums.co.uk/threads/mendip-rail-traffic.175266/