What is a drawback of using swept wings at low speeds?

Swept wings are designed with an angle that reduces drag at high speeds, which is beneficial for faster flight; however, this design introduces challenges at low speeds. At low speeds, swept wings tend to be less stable due to their decreased effectiveness in generating direct lift and increased risk of stall. This results from the way airflow behaves around the wings during slower flight. The airflow over the wing becomes more turbulent, and the wings may be more prone to losing lift earlier than straight wings do. This can lead to a higher likelihood of stalling, which can be critical in situations such as takeoff and landing where low speeds are prevalent.

Thus, while their aerodynamic efficiency is advantageous at higher velocities, the drawbacks at lower speeds can affect the overall handling and control of the aircraft, making stability a significant concern.