Our 1973 stock train, takes you right through the centre of the capital and out into the North London suburbs. Emerging from tunnel at Arnos Grove our train continues to Cockfosters in Hertfordshire. The section between Acton Town and Hammersmith is unique in being the only 'tube' line to feature express running - leaving the parallel District line to provide the stopping service. We then return to Acton Town and board another 1973 stock train for a drivers's eye view of the Heathrow Airport b...