Paul Cornu's helicopter 1907 - the first helicopter to achieve free flight, a twin-rotor machine designed by French cycle-dealer Paul Cornu and test flown at Lisieux on 13 November 1907. Forwarded by a 24hp Antoinette engine, the machine attained a maximum of 20sec in the air at a height of 6ft.. ©TopFoto

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Caption: Paul Cornu's helicopter 1907 - the first helicopter to achieve free flight, a twin-rotor machine designed by French cycle-dealer Paul Cornu and test flown at Lisieux on 13 November 1907. Forwarded by a 24hp Antoinette engine, the machine attained a maximum of 20sec in the air at a height of 6ft.. ©TopFoto

Credit: Album / TopFoto

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Image size: 5485 × 3984 px | 62.5 MB

Print size: 46.4 × 33.7 cm | 2159.4 × 1568.5 in (300 dpi)

Keywords: AVIATION • CONTRAPTION • FLIGHT • HELICOPTER • HELICOPTERS • INVENTION • ITALIA • ITALY • POWER • TRANSPORT • TWIN-ROTORS