Point of information (and forgive me for going a bit off topic): there is no use of an air balloon by Phileas Fogg in
Around t
he World in Eighty Days!
This is a common `Mythconception`.
Fogg and his associates employ rail and various types of steam boat and a wind powered sledge at one point - as well as, I believe, riding on the back of a n elephant - but no air balloon.
The novel is very much about the shrinkage of the world brought about by the cutting edge transport technology of the day - viz train and steam boat - air balloons are slow and unreliable and do not fit that theme.
.The 1956 film version of the book features an air balloon and of course another Jules Verne novel is called
Five Weeks in a Balloon (1863).
The situation is not helped by the fact that a lot of illustrators employ an air balloon as the Go-To image for the cover publications of the book!
More here:
https://jedibyknight.com/2014/07/19/there-is-no-hot-air-balloon-in-around-the-world-in-eighty-days/