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.
Saint Paul Union Depot
The "Morning Hiawatha" may have held the record as the world's fastest steam train on two or more measures: The run from Sparta to Portage, Wisconsin was scheduled for 58 minutes—an average of . Speeds up to and above were achieved on a daily basis, and the powerful Milwaukee Road class F7 engines (designed for a "reserve speed" of ) likely ran more miles at or above than any other steam locomotives in history.