Monday, 27 May 2013 - Thursday, 06 June 2013
The hot air balloon was the first successful human flight technology to take shape. They generate lift by heating the air contained inside the balloon envelope to increase it's buoyancy in the atmosphere. They are typically moved about with wind but may employ other technology for propulsion in the form of airships.
The only requirement for your hot air balloon is that it must only use heated air for lift and not be filled with pressurized gases such as a dirigible uses. It can be made in any shape you choose as long as it can hold air without being sealed shut.
Standard Participation Rules apply. Thanks to DalexD for the suggestion.
3D Warehouse Tag: 3D Challenge 177