Commercial Pilot License (CPL) Practice Exam

Low-speed turns without losing altitude are indeed the conditions most likely to lead to an aggravated stall and potentially a spin. During such maneuvers, the aircraft is operating near its critical angle of attack, which is a point where the airflow begins to separate from the wing surface. In a low-speed turn, the increased load factor (due to the bank angle) can cause the aircraft to exceed its critical angle of attack even without actual speed loss. This can lead to a stall, and if the pilot does not promptly recover by managing the aircraft's attitude and angle of attack, it can progress into a spin, particularly if the stall occurs in a banked turn.

In contrast, straight and level flight does not typically pose the same risks. The aircraft maintains a safe margin above stall speed and is not under the additional stress of increased load factors. High-speed straight climbs, while they may require careful monitoring of airspeed, generally do not put the aircraft into a situation leading to an aggravated stall in the same way as a low-speed turn would. Controlled descents with reduced power, while potentially creating a low airspeed environment, do not involve the same dynamics of turning that can exacerbate the stall condition. Therefore, the context of banking and low air