Three early helicopter designs,1877

Numéro d’image : 11700337
Three early helicopter designs,1877
Three early helicopter designs of 1877,19th-century illustration. At top is the twin-rotor steam-driven design by French engineer Emmanuel Dieuaide. At centre is the steam-powered design by Italian engineer Enrico Forlanini. At bottom is the compressed air-powered design by French engineer P. Castel. Forlanini's design achieved a height of 13 metres. Castel's design took off,but then crashed. Dieuaide and Castel's designs were powered through a hose from the ground. Artwork from 'Aerostation - Aviation' (1911) by French civil engineer Max de Nansouty (1854-1913),part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier
Licence : Droits gérés
Crédit: Science Photo Library
Taille de l’image : 3712 px × 5197 px
Model Release : Non requis
Property Release : Non requis
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