The Nieuport Delage 640 is a single engine commercial high-wing monoplane of all wood construction, including the fuselage and tail. It's landing gear is hinged in two parts.
Nieuport-Delage 640 (French) : commercial high-wing monoplane
1929-03-01
Miscellaneous
No indication
English
Nieuport-Delage 590 military airplane (French)
Engineering Index Backfile | 1932
Nieuport-Astra. The Nieuport Delage type 390
Engineering Index Backfile | 1928
Nieuport-Astra. The Nieuport Delage, types 540 and 640
Engineering Index Backfile | 1928
Online Contents | 1996