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67m³ solar balloon seen from below


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Ballon / montgolfière solaire 10m³ Ballon / montgolfière solaire 10m³
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Solar balloon / solar hot air balloon 10m³

(Metric system)
Fly your mobile phone and film your surroundings.
Characteristic: Solar balloon made in two parts!
  • Volume : 10m


  • Surface : 23.6m


  • 19mm adhesive: 55m
  • Thrust ** : ≃ 900g
  • Envelope weight: 472g
  • Payload: 250g
  • Matter: 36 100L garbage bags, low-end
  • Matter: LDPE (low density polyethylene), thickness 20µ
Ease manufacturing  3.5/5
Manufacturing cost  0.5/5 < than 20€

** Reference thrust: 90g/m³ (Latitude: 46.7°N - Month: July - Time: 8 am UTC)


100L garbage bags Cut the bottoms of the bags Stack 24 bags
Choose low-end 100L trash bags, with closing ties.

Cut the bottom of the trash bags 12 by 12. Stack 24 trash bags and cut them to obtain 24 sheets to weld.
Welding plan Stack 12 gores Fold in 2
Solder 2 sheets, using a soldering iron, to obtain a gore. Stack the 12 gores and hold them with clothespins. Fold the gores in two to obtain alf-gores.


3D design Catia V5 Dassault Systèmes

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Solar airship

3 solar balloons


1st human flight in history in 1783, by the Montgolfier brothers

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