ground effect
Noun: 1. Aerodynamic Phenomenon: The apparent increase in aerodynamic lift and decrease in aerodynamic drag experienced by a fixed-wing aircraft or rotorcraft when flying very close to the ground or water surface. This effect is caused by the interaction between the aircraft's wings and the surface, which alters the airflow and reduces wingtip vortices.
The term "ground effect" is used specifically in aviation and aerodynamics to describe a physical phenomenon. It is typically discussed in contexts related to aircraft performance, takeoff, landing, and the design of specialized vehicles. * The pilot used the ground effect to extend the glider's flight over the lake. * Understanding ground effect is crucial for safe landing procedures. * The vehicle was designed to operate solely within the ground effect, skimming over the water.
- In Ground Effect (IGE): A technical phrase used, especially in helicopter operations, to describe the condition where the aircraft is benefiting from this phenomenon. Its opposite is Out of Ground Effect (OGE).
- The helicopter can lift more weight when it is operating in ground effect.
- Ground-effect vehicle (GEV): A special type of vehicle, such as an ekranoplan, designed to fly exclusively within the ground effect zone over a surface.
- Wing-in-ground-effect (WIG): Another term used to describe vehicles or craft that utilize this principle.
- Surface effect
- Cushion effect (Note: More commonly associated with hovercraft, which use an air cushion, but the principle is related.)
- Flying in ground effect: The act of piloting an aircraft within the region where this phenomenon is significant.
- The seaplane was flying in ground effect just above the waves.
- apparent increase in aerodynamic lift experienced by an aircraft flying close to the ground