ground effect

ground effect

An increase in lift of an aerodynamic flying machine (airplane or helicopter) flying very near the ground. This additional lift is caused by an effective increase in angle of attack without the accompanying increase in induced drag and is caused by the deflection of the downwashed air. Ground effect disappears when the flying machine is about a half wing span or half rotor span above the surface.

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Industry/Domain: Aviation
Category: Aeronautics
Company: Aviation Supplies & Academics
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