Helicopter Rotor Downwash – Excessive wind, FOD and brownouts

What is helicopter rotor downwash? Rotor downwash is a commonly ignored phenomenon that occurs during helicopter hover in close proximity to a ground surface. It has the potential to cause significant damage to nearby vehicles and objects, as well as people. Figure 1 shows the impact of helicopter rotor downwash while hovering over water and […]

Outwash flow measurement around the subscale tandem rotor in ground effect - ScienceDirect

PDF] Rotorcraft Downwash Flow Field Study to Understand the Aerodynamics of Helicopter Brownout

What does downwash mean exactly (for a fixed wing vs. for a rotor blade)? - please read the comment below for details - Quora

PDF] Rotorcraft Downwash Flow Field Study to Understand the Aerodynamics of Helicopter Brownout

Does the height of which a paper helicopter is dropped from affect

PDF] Rotorcraft Downwash Flow Field Study to Understand the Aerodynamics of Helicopter Brownout

Cool Mission?

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PDF] Rotorcraft Downwash Flow Field Study to Understand the Aerodynamics of Helicopter Brownout