Is 391 deciliters as big as a Hot Air Balloon?
It's about one-fifty-five-thousandth as big as a Hot Air Balloon
The size of a Hot Air Balloon is about 22,000,000 deciliters.
(four-person capacity; envelope volume; average)
The average volume of a hot air balloon sufficient to lift four adults is 22,000,000 deciliters. Typically made of nylon or dacron, a balloon envelope of this size typically weighs just 88 kg (190 lbs).
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