The Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930EbookThe Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930byDavid BloorRating: 0 out of 5 stars0 ratingsSave The Enigma of the Aerofoil: Rival Theories in Aerodynamics, 1909-1930 for later