Ground effect refers to the aerodynamic phenomenon that occurs when an aircraft flies close to the ground, typically within one wingspan’s distance or less. In this state, the airflow beneath the wings is affected by the presence of the ground, leading to changes in the aircraft’s lift, drag, and stability characteristics.
Where:
- Effective Lift Coefficient is the lift coefficient in ground effect.
- Actual Lift Coefficient is the lift coefficient without ground effect.
- â„Ž is the height above the ground.
- is the wingspan of the aircraft.