Nigel Gresley
Sir Herbert Nigel Gresley (19 June 1876 – 5 April 1941) was an English railway engineer. He was one of Britain's most famous steam locomotive engineers, who rose to become Chief Mechanical Engineer (CME) of the London and North Eastern Railway (LNER). He was the designer of some of the most famous steam locomotives in Britain, including the LNER Class A1 and LNER Class A4 4-6-2 Pacific engines. An A1 Pacific, "Flying Scotsman", was the first steam locomotive officially recorded over 100 mph in passenger service, and an A4, number 4468 "Mallard", still holds the record for being the fastest steam locomotive in the world (126 mph).
LNER Peppercorn Class A1 60163 Tornado
With a shorter rake of eleven coaches compared with the original Peppercorn A1's usage, "Tornado" is expected to achieve contemporary main line speeds. Theoretically capable of , "Tornado" may in the future gain permission to run at , making her the fastest steam locomotive on the British main line. "Tornado" is expected to see main line use until its ten-year fire-tube boiler re-certification in late 2018.