The Span of A Thousand Years Nearly a thousand years of history glides under the majestic wings of this Pan American 'Stratocruiser', world's largest aeroplane in commercial service, as she passes over Windsor Castle en route to London Airport from New York. Beneath the 'Stratocruiser' the Castle - a Royal residence since the days of William the Conqueror (although it was built mainly by Henry III) - spreads its gracious grey bulk on the banks of the River Thames, winding through the chequered B