AFOQT Practice Test

What would be a disadvantage of using a swept wing planform?

1. Increased fuel efficiency

2. Tendency to twist under stress

3. Higher cruising speeds

4. Enhanced aerodynamic stability

The correct answer is: Tendency to twist under stress

Using a swept wing planform does indeed have its disadvantages, one of which is the tendency to twist under stress. Swept wings are designed to optimize performance at higher speeds; however, this design can lead to structural challenges. The aerodynamic forces acting on the wings can cause them to experience differential loading, which may result in unwanted twisting of the wing structure. This twisting can affect the aircraft's handling and control characteristics, posing a risk during critical flight phases. The other options illustrate the advantages typically associated with swept wings, such as increased fuel efficiency due to reduced drag at higher speeds, higher cruising speeds that benefit from the aerodynamic design, and enhanced aerodynamic stability that allows for effective handling in various flight conditions. However, the fundamental disadvantage emphasized in the chosen option highlights important considerations in the structural integrity and aerodynamics of aircraft designs utilizing swept wings.