AFOQT Practice Test

What is the purpose of a swept wing planform design?

1. To increase the aircraft's maximum speed

2. To reduce drag and improve lift

3. To enhance stability during landing

4. To provide better maneuverability

The correct answer is: To reduce drag and improve lift

The correct purpose of a swept wing planform design is primarily to increase the aircraft's maximum speed. Swept wings are designed at an angle relative to the aircraft's body, which helps to delay the onset of shock waves that occur as the aircraft approaches transonic and supersonic speeds. This reduces the effects of drag associated with these shock waves, allowing the aircraft to perform more efficiently at high speeds. While reducing drag and improving lift certainly plays a role in the design, the main advantage of swept wings comes into play at higher velocities, making them especially beneficial for jet aircraft that need to operate at or near the speed of sound. Other factors related to stability, landing, and maneuverability can be influenced by wing design, but the fundamental characteristic of the swept wing specifically targets speed enhancement by optimizing aerodynamic performance at higher speeds.