sentences:  During World War II, Derby pioneered aeroplane wing production methods, by 1945 having produced over 4,000.With the loco works, wings and fuselages were repaired and sent to a private contractor at Nottingham for assembly, initially of Hampden bombers but later of other aircraft including Lancasters.Although towards the end of the 'thirties a complete 'Coronation Scot' train was built for an exhibition tour in America and a streamlined all-welded three coach railcar, most of the all-steel carriages were made by outside manufacturers.