3 Rotor Downwash Niagara Fluid effects. (Wind near the ground from spinning Helicopter rotors)
20+ user parameters so you can customize and create your own versions.
These are Niagara Fluids effects so they can be expensive if you crank up the quality, the default settings i have provided have a good balance of performance and visuals but you can adjust as needed.
Remember to enable the NiagaraFluids plugin and restart the editor
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