(17 Aug 2014, 2:07 pm)BJ10VUS wrote If I'm right in thinking it continued from Helmsley, the route wouldn't have actually been required to go up or down Sutton Bank. However, I do agree that it wouldn't have been powerful enough to tackle it!
It was an extension of a service to Helmsley - where it originated from I have no idea.
Although it would have been useful to fill the black hole between Thirsk and the Moors, I am guessing the bank is the reason why the black hole exists.
Shame they didn't have Palatine II's on :p