I had the pleasure of a journey behind Tangmere a couple of years ago, on the NorthernBelle. Up to Penrith, then back down the Cumbrian coast. We stopped at Penrith for a short break and I had the opportunity to climb onto the footplate and chat to the crew. Apparently, two firemen were non-stop shovelling coal all the way up Shap, but she flew up there remarkably well.