hovering in ground effect

hovering in ground effect (IGE)

hovering in ground effect (IGE)click for a larger image
hovering in ground effect (IGE)
A helicopter hovering at A requires 55% torque. It will require 58% if it were to hover at B.
A helicopter hovering at a height that is equal to or less than the span of its rotors. A helicopter can hover in ground effect at a higher density altitude than it can hover out of ground effect. A helicopter requires less power to hover in ground effect than hover out of ground effect. The power requirement varies directly with the height above ground level.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
A dynamic controller for rotorcraft landing and hovering in ground effect using feedback control based on flow field estimation has also been developed and tested in simulation [30].
In Figure 9, a multirotor hovering in ground effect which experiments an attitude perturbation is shown.
Caption: Figure 5: CFD simulation of a quadrotor simplified model hovering in ground effect at a distance of 2R of the ground plane.