Out of ground effect (OGE) hover

Definitions

• Hovering a distance greater than one disk diameter above the surface. Because induced drag is greater while hovering out of ground effect, it takes more power to achieve a hover out of ground effect.
• Hovering greater than one diameter distance above the surface. Because induced drag is greater while hovering out of ground effect, it takes more power to achieve a hover out of ground effect.

References

• Helicopter Flying Handbook, Federal Aviation Administration, 2019
• Rotorcraft Flying Handbook, Federal Aviation Administration, 2000