The famous "Flying Scotsman" is rolling again more than 80 years after it became the first locomotive to reach 100 miles an hour.
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The Flying Scotsman steam engine passes over a viaduct as it leaves East Lancashire Railway in Bury, Britain, on Jan. 8, 2016.
After a decade of restoration and over 80 years since it became the first locomotive to reach 100 miles an hour, the engine made a series of short test runs on Friday, ahead of a program of heritage journeys this year on Britain's main lines.
— DARREN STAPLES / Reuters
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The Flying Scotsman pulls carriages during a test run along the East Lancashire line.
The engine has toured both the United States and Australia since it was retired from service.
— Nigel Roddis / Getty Images
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Restoration of the train has cost some 4 million pounds ($6 million), although the engine will not be repainted in its traditional green livery until next month.
— MCPIX/REX/Shutterstock / AP
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Engineers chat during the test run along the East Lancashire line.
Built in 1923, the engine hauled the first ever non-stop service between London and Edinburgh in 1928, taking eight hours. It set the record-breaking 100 mph mark in 1934.
— Nigel Roddis / Getty Images
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The Flying Scotsman pulls carriages during a test run.
After it was retired in 1963 as the age of steam in Britain drew to a close, the Scotsman was sold to a businessman who took it on a tour of the United States where it was fitted with a bell, headlamp and cow-catcher.
— Nigel Roddis / Getty Images
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Engineers chat on the back-up tender during the test run.
When people across four continents were asked to name five trains or engines they had heard of in 2015, the Flying Scotsman topped the list.
— Nigel Roddis / Getty Images
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A man passes carriages pulled by The Flying Scotsman at East Lancashire Railway station in Bury.
— DARREN STAPLES / Reuters
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The Flying Scotsman pulls carriages on a test run along the East Lancashire line.
— Nigel Roddis / Getty Images
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The Flying Scotsman pulls carriages along the East Lancashire line.