Hi all,

I found this article on Ailes,about twin-rotor helicopter Project,and they mentioned that
the designer was from Netherland and his name is Mr. Volpert,I can't recognize if he
was the same Germany design; Ludger Volpert or not,can anyone help ?.

https://gallica.bnf.fr/ark:/12148/bpt6k9795858h/f5.item

Naam: 1.jpg
Bekeken: 66
Grootte: 56,1 KB

Naam: 2.png
Bekeken: 65
Grootte: 340,7 KB