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I found this startup that makes drones powered by wind power.
Glider planes can also fly with the wind, without any engines.
Some planes are fitted with wind turbines to generate emergency power in case of engine failure.
These MIT researchers have done it, but using ion wind propulsion.
https://news.mit.edu/2018/first-ionic-wind-plane-no-moving-parts-1121
A wind-powered aircraft
(5 upvotes)Start using ion engines in cars, trains, and airplanes
(6 upvotes)Wind energy is not reliable enough to be used as the sole power source for an aircraft. Not to mention, adding wind turbines to an aircraft would increase the drag, leading to more problems.