What is one major danger posed by frost on an aircraft?

Frost on an aircraft primarily disrupts surface airflow, which can significantly affect the aircraft's lift and overall aerodynamic performance. When frost accumulates on the wings and control surfaces, it creates an uneven surface that alters the airflow characteristics. This disruption can lead to a reduction in the lift generated by the wings, making it difficult for the aircraft to become airborne during takeoff. For an aircraft, an efficient airflow is essential for achieving the required lift to leave the ground; any obstruction or irregularity, such as frost, can severely hinder this process. Therefore, regarding safety and operational efficiency, managing and removing frost before flight is critical.