LNER Class A3 4472 Flying Scotsman is a 4-6-2 Pacific steam locomotive built in 1923 for the London and North Eastern Railway (LNER) at Doncaster Works to a design of Nigel Gresley. It was employed on long-distance express East Coast Main Line trains by the LNER and its successors, British Railways Eastern and North-Eastern Regions, notably on the London to Edinburgh Flying Scotsman train service after which it was named.