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by dr_dshiv 1685 days ago
This is making me curious about hot air balloons combined with hydrogen/helium. I don’t know whether the heat would affect the balloon lift in a meaningful way, but would be nice to have control.
2 comments
dr_dshiv 1685 days ago
Cool, here is a kind of balloon that combines hot air and helium.

https://en.wikipedia.org/wiki/Rozi%C3%A8re_balloon

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FlyMoreRockets 1685 days ago
It has been one before. https://en.wikipedia.org/wiki/Rozi%C3%A8re_balloon
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