UAS Safety Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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Question: 1 / 400

In terms of aircraft design, what does the term 'airfoil' refer to?

The aircraft's engine style

The cross-section shape of the wing

The term 'airfoil' specifically refers to the cross-sectional shape of a wing or any surface designed to generate lift when air flows over it. This design is critical in determining how efficiently the aircraft can fly, as it directly impacts lift, drag, and overall aerodynamic performance. An airfoil's shape affects the airflow around it, influencing how the aircraft interacts with the air, which is central to flight mechanics.

The efficiency of an airfoil design can significantly affect an aircraft's performance characteristics, including speed and fuel efficiency. Features like the curvature of the upper surface and the angle of attack are essential considerations in airfoil design, making it a fundamental concept in aerodynamics and aircraft engineering.

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The control layout of the cockpit

The type of landing gear used

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