43034 The Black Horse emerges from Ardley Tunnel on 5 November 1994 with the Chiltern Railways 08:10 Paddington to Chester '125 Awayday' railtour, with 43042 still deep inside the tunnel on the rear. HSTs were (and still are) very scarce on the Chiltern Line, and it is ironic that nearly sixteen years later I was back at the same location for another rare visit of the class. Incidentally, in 1994 there was obviously more spare capacity in the HST fleet, as there was another railtour running on this day - the Hertfordshire Railtours 'Coast to Coast', using 43063 & 43076.