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.
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.