FIELD: aerostation. SUBSTANCE: soft aerostat has balloon 1 and basket 5 with lines 4. Inner balloon 2 is located inside balloon 1 and is connected with it by means of connectors 3. Check valve 8 is fitted between connectors 3 in each section on envelope of inner balloon 2. EFFECT: high safety of flights and simplified construction of aerostat. 1 dwg
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