221143, VT 12.43 London Euston-Edinburgh W (9S70, 1E), Preston station
Virgin Trains 221143 'Auguste Picard' pauses at Preston station working
the 9S70 12.43 London Euston to Edinburgh. Can somebody explain the economics of running a thirsty and noisy DMU on this journey of just under 500 miles completely under fully electrified 25kv wires?