G. Zanni Old Helicopter

[hesham]

Hi,

Mr. G. Zanni made a patents in Italy,France and UK,I don't know his nationality,and
he had a strange helicopter Model;

http://www.avia-it.com/act/biblioteca/periodici/PDF%20Riviste/Ala%20d'Italia/L'ALA%20D'ITALIA%201925%2002.pdf

 

[hesham]

Hi,

here is a helicopter Patent by Zanni,odd in its shape ?.

http://www.avia-it.com/act/biblioteca/periodici/PDF%20Riviste/Ala%20d'Italia/L'ALA%20D'ITALIA%201928%2005.pdf

 

[Armin Derer]

from The Index of Aeronautics, US Institute of Aeronautics (New York City, 1936)