hexagon789
Veteran Member
I am led to believe that 40mph might be achievable as long as you allow a hundred miles or so for them to accelerate up to it
Seriously though I've heard that they are absolutely dreadful on diesel and self-rescue isn't really a thing (though being able to supply hotel power, to my mind, is still a good reason to have them!!).
Oh yeah the performance is terrible, I was just repeating what they are designed to manage.
LNER would do well to keep the Thunderbirds!