Mainline steam trains in Great Britain
The most famous steam locomotive operating on the British main line is the 1923 built "Flying Scotsman". After being taken into public ownership in 2004, following a decade long refit it returned to mainline service in 2016. The fastest steam locomotive ever built, the 1938 built "Mallard", was also certified for main line operation briefly in the 1980s.
LNER Peppercorn Class A1 60163 Tornado
If running is achieved, "Tornado" would also become the second fastest operational steam locomotive in the world. Regular steam operation was last seen in Britain in 1967 with the Merchant Navy class Pacific locomotives operating on the Waterloo to Bournemouth route. The fastest operational steam locomotive in the world is Deutsche Reichsbahn 18.201, allowed to run in Germany up to .