Recycling

This three-car association, with driving-motor automobiles ‘sandwiching’ the trailer carrying the AC collection equipment, was subsequently adopted as the essential layout for the Class 313 design. The Category 313 fleet was correspondingly ordered for the inner-suburban companies – those making frequent stops between London and Welwyn or Hertford. Two new fleets had been ordered as part of the electrification, authorised in 1971, of suburban services on British Rail’s Great Northern route between London King’s Cross and Royston, via Welwyn Garden Metropolis