The Flying Scotsman was a train service, which started in 1862, leaving Kings cross for Edinburgh at 10AM each day, several trains of the Atlantic class actually pulled the service, before being replaced with the A1 class designed by Sir Nigel Gressley, of which 4472 "Flying Scotsman" was only one
Did you know that the limiting factor on the Mallards speed runs was the fireman. They had to shift a tonne of coal an hour at full speed ... that's a lot f'coal
Unfortunately when the Mallard set her, unbeaten, world speed record for a steam train, they hit maximum speed just before a 40MPH part of the track, In trying to get her to slow down the driver broke the brakes, and caused major damage to the running gear.
Sorry ... train nerd