Aeronautical engineering of to-day
Aeronautical exhibition at Cleveland included units of most companies
Aeroplanes of XVIIIe salon de l'aeronautique
Aeroplanes of XVIIIe salon de l'aeronautique
Air-cooled engines and monoplanes stand out at aircraft show
Air-cooled engines are almost universal at Detroit aircraft show
Aircraft at the Internation Aero Exhibition in London, 1929