You've been paying attention
Feel free to keep speculating!
Today I found a small description about flying fubarnii knights. This opens a whole new world of possibilities when it comes to exploring areas still unknown.
And if there are flying animals the fubarnii can ride on, why not the devanu (who are still very good at handling beasts)?
A balloon depends a lot upon the wind and is quite dangerous this way, but winged animals which you can steer, ...
Suddenly I really start to like the thought of aerial combat