The 16.22 London St.Pancras International to Paris Nord Eurostar service passes Lenham freight loops just 22 minutes after departure from London having already travelled 79 Kms (almost 50 miles).
French Eurostar set No 373 231/232 leaves the North Downs tunnel at about 180mph and approaches Km post 58 on the 16.12 London Waterloo to Paris Nord service.