(10 Mar 2021, 8:52 pm)L469 YVK wrote Agree, I doubt GNE would send an E400MMC on the X11. Great buses (in the right hands) but definitely not cut off for monster trips like that.
Will most likely be 6377.
Also Dan, how would breakdowns & unexpected overcrowing work? Would EYMS cover the Middlesbrough > Scarborough section with GNE covering the Middlesbrough > Newcastle section?
For a once a day trip, I think an MMC would be absolutely fine - it'll have at least a couple of hours rest down there. I think 6377 will be the best choice, again I think there's a reason it tracked on that trip last week, but an MMC would cope just fine. Remember that GNE used B7TLs, with a similar sized engine, on the TTX and they were fine for the first while, and ANE use B7TLs on the X93 summer extras without any real issue.