The Waterbury rail line is the smallest branch on the railroad, with a locomotive and two-car train that serves several hundred commuters a day, Anders said.

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As the ratio goes down, a car is transformed from a locomotive to a rocket.

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While sales of its Hornby model railway sets were broadly similar to the previous year, its new Brighton Belle five car set and Flying Scotsman locomotive had seen "notable success" it said.

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But the car had rolled away from the locomotive, and the coupling was taut.

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Mr Harbron, a locomotive driver from Wellow in Nottinghamshire, was unloading 40 steel pipes from a rail car on 24 July 2009 when they rolled on him.

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She died when her Fiat Punto car was struck and shunted down the track by a 105-tonne single locomotive, which was being used to familiarise train drivers on the Cambrian Coast Line.

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