By Cedric Johns
Passengers travelling on The A1 Steam Locomotive Trust’s ‘North Briton’ railtour on Saturday, February 24, were surprised to discover that the train was fronted by a Class 66 diesel piloting Tornado when it departed on its steam-hauled leg from Doncaster.
Those who had joined the train, diesel-hauled from Cambridge and stations beforehand, had expected the 66 to give way to the No. 60163 at Doncaster – but it was not to be.
Troubled by a serious technical problem to its Train Protecting & Warning System, discovered during a fitness-to-run examination at East Leake on the Great Central Railway (Nottingham) on February 13, a positioning run by the A1 to Didcot planned for that day was cancelled. Following a week’s investigations, during which industry experts, including the manufacturer, examined the system in what might be termed an unprecedented situation, progress was slow in finding answers.
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