How are airplane stall speeds typically presented in the Approved Flight Manual?

Airplane stall speeds presented in the Approved Flight Manual are typically dependent on aircraft weight. This means that as the weight of the aircraft changes, the stall speed will also change. As the aircraft becomes heavier, the stall speed increases because the aircraft requires a higher angle of attack to maintain level flight. Conversely, if the aircraft is lighter, the stall speed decreases. This relationship is crucial for pilots to understand, as knowing the stall speed in relation to weight helps ensure safe operation during various phases of flight, particularly during takeoffs and landings.

In addition, stall speeds are usually provided for different configurations of the aircraft, such as clean (flaps up) versus dirty (flaps down), which can also affect the stall speed but are secondary to the primary relationship with weight. It's essential for pilots to reference the Approved Flight Manual to understand how stall speeds vary with the aircraft's loading condition. Other options do not properly reflect how stall speeds are presented in the Approved Flight Manual, as stall speeds are not fixed regardless of weight or solely a function of altitude, nor are they exclusively related to high-speed flight conditions.