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.
Rotorua Express
The Rotorua Express has the distinction of being the very first express passenger train in the world to be hauled by Pacific locomotives, when Q349 hauled it out of Auckland on Christmas Eve, 1901. This was the start of a worldwide trend, with such trains as the 20th Century Limited, Orient Express, Flying Scotsman and many more all sporting such locomotives of the type in later years. The world's fastest steam locomotive, is also of the same type.