Question

Which of the following is usually measured as the angle between the line of 25% chord and a perpendicular to the root chord?

• A. Anhedral angle
• B. Dihedral angle
• C. Sideslip angle
• D. Sweep angle

Hint:

Sweep angle affects the aerodynamic efficiency and stability of an aircraft, particularly at transonic and supersonic speeds.

Answer 1

The Correct Option is D

The sweep angle is the angle between the line of 25% chord of a wing and a line perpendicular to the root chord. This measurement is important for determining the aerodynamic characteristics of wings, particularly in high-speed aircraft to delay the onset of shock waves and reduce drag.