Comet - The First Jet Airliner
Between 1930 and 1950 military aircraft design advanced from propeller driven biplanes to jet powered monoplanes. Civil aviation remained dominated by large propeller driven aircraft until 1949 when de Havilland introduced the world to the age of the jet airliner. Sir Geoffrey de Havilland conceived the idea of the DH106 'Comet' in 1943 and design work began in September 1946. The prototype first flew on 27 July 1949.