I was driving a Jubilee on peak forest the other day and got up to quite a considerable speed. So naturally I thought I’d take a pair down Kassel-Wurzburg… I mean how is this even possible . Its not even wheelslip the train is doing a steady 220mph. It was still gaining speed as well until I hit the sharp corner at Fulda
The thread 'Spirit of Steam - A Realistic Challenge' is a good one to read through if you want to drive the kettles a bit more realistically with more accurate physics.