Disclosed in a lighter than air vehicle comprising a first envelope (34), a second envelope (36) located inside the first envelope (34), and a tube (40) connecting the first envelope (34) to the second envelope (36). The first envelope (34) and the second envelope (36) are spaced apart so as to define a chamber between the first envelope (34) and the second envelope (36). The chamber is filled with a lighter than air gas (22). A first opening of the tube (40) is located at an external surface of the first envelope (34). A second opening of the tube (40) is located at an internal surface of the second envelope (36), the second opening of the tube (40) being at an opposite end of the tube (40) to the first opening of the tube (40).
LIGHTER THAN AIR VEHICLE
LEICHTER-ALS-LUFT-FAHRZEUG
VÉHICULE PLUS LÉGER QUE L'AIR
2017-01-25
Patent
Electronic Resource
English
IPC: | B64B LIGHTER-THAN-AIR AIRCRAFT , Luftfahrzeuge leichter als Luft |