Instrument Rating Checkride Practice Test

Question: 1 / 400

How is "Angle of Attack" defined?

The angle between the aircraft's wings and the fuselage

The angle between the wing's chord line and the direction of the relative wind

The term "Angle of Attack" is correctly defined as the angle between the wing's chord line and the direction of the relative wind. This angle is critical in aerodynamics because it directly influences lift. When the angle of attack increases, lift also increases up to a certain point, known as the critical angle of attack. Beyond this point, further increases in angle can lead to a stall condition, where lift diminishes dramatically.

Understanding this concept is essential for pilots, particularly when flying in instrument conditions where visual cues are minimal, and awareness of aerodynamic principles becomes vital for safe maneuvering and control of the aircraft. The other definitions provided do not accurately capture the significance of the angle of attack in relation to flight aerodynamics, which is fundamentally about the relationship between airflow and the wing.

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The angle of the aircraft nose relative to the horizon

The angle between the aircraft wing and the ground

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