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Thermal airship

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Thermal Airship Birmingham

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Thermal Airships verses Helium Airships

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Thermal Airship setup (Time Lapse)

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Miniature Hot Air Airship / Thermal Blimp

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A Tour of the Gondola

A thermal airship is an airship that generates buoyancy by heating air in a large chamber or envelope. The lower density of interior hot air compared to cool ambient air causes an upward force on the envelope. This is very similar to a hot air balloon, with the notable exception that an airship has a powered means of propulsion, whilst a hot air balloon relies on winds for navigation. An airship that uses steam would also qualify as a thermal airship.
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