Recent Examples of downwash from the Web
This improves low-speed stability by halving the amount of surface area affected by the main rotor downwash, without compromising aerodynamics in forward flight.
Other equipment in the cavernous space can replicate the downwash from rescue helicopters, and generate rain, darkness, 120-mile-per-hour winds, smoke and fire.
Between them, though, is a downwash that creates extra drag on the plane.
The ground blocks the trailing vortices of the wing and decreases downwash.
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