Steam locomotives are the closest thing humans have created to a living ‘thing’.
They require finesse and careful attention to get the best out of them, need to be warmed up gently and then disposed in the right way after a run. Rather than pushing a lever or pressing a button on a diesel or electric locomotive or multiple units, man and machine have to work in harmony to extract the best performance from the locomotive.
Here we take a leaf through the history books and recount the fastest steam locomotives ever. To include different classes in the list, we’ve picked the fastest example but have noted other significant speed records where required.
PICTURE: The Sir Nigel Gresley, which holds the British post-war steam speed record of 112mph, and sister locomotive to the famous Mallard.
10: ‘3700’ No.3440 City of Truro – 100mph

Producing an exhaustive list is near-impossible: as you’ll see further along, some claims are not backed with serious evidence and in almost all cases there are counter-claims. Perhaps the most famous instance of ‘did it or didn’t it?’ occurred in 1904 when the British train City of Truro was hauling a train from Plymouth to London Paddington and travelled down Wellington Bank in Somerset.
Onboard the train was journalist Charles Rous-Marten and he timed the train taking 8.8 seconds to travel between two quarter mileposts. Rounding up to nine seconds – as his stopwatch only read in multiples of 1/5 second – corresponds to 100mph.
Did ‘Truro’ hit 100mph? Nobody can know for sure. Rous-Marten’s quoted timings for eight quarter mileposts certainly support this theory, but of course the accuracy will be far below today’s levels of technology, such as GPS units and accurate speedos.
Whether or not ‘Truro’ hit 100mph on 9 May 1904 is largely a moot point in many ways: whatever the outcome, its top speed as it descended the bank in Somerset was higher than that of contemporary cars and aeroplanes. The debate will rage on and on about this run; thankfully, however, there is more concrete evidence to support further claims.
9: ‘A1’ No.60163 Tornado – 101mph

Completed in 2008, Tornado was the first standard-gauge steam locomotive to be built in the UK for more than 50 years. It is one of the most recognisable locomotives thanks in part to it appearing in the Paddington 2 movie, while it featured in a Top Gear race between London and Edinburgh.
On 12 April 2017, it hit the magic ton in connection with a bid to run the locomotive at 90mph instead of 75mph while hauling railtours. As part of the bid, in common with other rail vehicles, Tornado had to operate at 10% above its planned maximum speed to demonstrate a sufficient margin of safety and special dispensation was given to hit three figures
That run marked the first time that a steam locomotive had hit 100mph in the UK for 50 years. Alas, Tornado has only hauled one railtour at 90mph in the intervening period and it is likely 90mph running will only happen on special occasions in the future.
At the time of writing, the locomotive is about to return to the national network following a £1 million overhaul and is set to commence its traditional season of ‘Aberdonian’ trains from Edinburgh to Aberdeen every summer.
















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