This mod provides ultralight aircraft, which you refuel with biofuel. I believe you have biofuel installed? if not, it would be very simple to use a minetest.register_alias to make the vehicle accept another fuel instead.
It uses mobkit… but mobkit is an api… it wont run anything until it is used by a mod (this one).
from the description, it looks like crashlandings which damage the rider and the plane are possible… practice is needed to fly it.
It looks like a very suitable replacement for the helicopters.
If you install this, you might as well also install sailing kit, a sailboat with nice physics, which also depends on mobkit.
I saw that too. I bookmarked it and wanted to try it. Yeah biofuel isn’t really too great for the game. Its better get leave a source of fuel and have players go underground to find oil or mese for fuel for now. That was the train of thinking at the time. It was a more interesting way to distribute resources, instead of encouraging surface only dwelling with the biofuel as a fuel source for furnaces, etc.