The ‘Orange Army’ of volunteer marshals sits at F1’s front line, stationed around the circuit and armed with sets of flags and buttons and ready to respond in a split second to any dramas that happen on the track. Flag signals were first used in F1 to communicate trackside to car in 1963. The track is divided into a large number of marshalling sectors – far more than the three timing sectors – and at the start of each one there is a ‘marshal post’ where the flags are waved to tell drivers of dangers on the track. Winning in F1 is all about executin …

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