1. SoCalDude

    Incredible Drone Turbulence (now *that's* some propwash!)

    NASA's Supercomputers Reveal the Incredible Turbulence Produced By a Drone "If you’ve ever been blasted by the downwash of a drone when it flies over you, you know how much air four spinning rotors can move. But to help improve the design and flight characteristics of future drones, NASA had...