D306 Atlantic Conveyor passes Castor on the Nene Valley Railway in superb late afternoon light on 19 March 2000 with the 15:56 Peterborough to Wansford service, during the line's Diesel Gala. D306 gained some notoriety in BR days when as 40106 it survived into 1976 in very tatty green livery, and then surprisingly in the corporate blue era, emerged from a repaint in a fresh coat of green! It then became a celebrity machine, much requested for railtours, a role it handed over to D200 in 1983.