What happens to the effective angle of attack when leaving ground effect at a given angle of attack?

What happens to the effective angle of attack when leaving ground effect at a given angle of attack?

• A. It increases
• B. It decreases
• C. It remains the same
• D. It becomes unpredictable

Answer: (B)

When an aircraft leaves ground effect, the effective angle of attack decreases. This phenomenon occurs because ground effect reduces the induced drag and alters the airflow around the wings when the aircraft is close to the ground. In ground effect, the aircraft experiences less downwash and more lift due to the interaction of the wing's downwash with the ground. As the aircraft ascends and exits this cushion of air, it transitions into a different aerodynamic environment where the reduced lift and increased influence of drag results in a decrease in the effective angle of attack. Pilots must be aware of this change, as it can affect aircraft performance and handling characteristics during the climb-out phase.

When an aircraft leaves ground effect, the effective angle of attack decreases. This phenomenon occurs because ground effect reduces the induced drag and alters the airflow around the wings when the aircraft is close to the ground. In ground effect, the aircraft experiences less downwash and more lift due to the interaction of the wing's downwash with the ground. As the aircraft ascends and exits this cushion of air, it transitions into a different aerodynamic environment where the reduced lift and increased influence of drag results in a decrease in the effective angle of attack. Pilots must be aware of this change, as it can affect aircraft performance and handling characteristics during the climb-out phase.