What does "Vso" signify in aviation terminology?

"Vso" stands for the stall speed in the landing configuration of an aircraft, which is a crucial parameter for pilots to understand. This speed is defined as the minimum speed at which the aircraft can maintain controlled flight with the flaps in the extended position and landing gear down, just before it reaches the stall condition. Knowing "Vso" is important during approach and landing phases because flying below this speed can lead to a stall, which can result in a loss of control.

In the context of flight operations, recognizing and adhering to "Vso" helps pilots ensure that they are operating above a safe speed during landing, allowing for safe and efficient landings. This parameter is particularly significant as it plays a vital role in determining the aircraft's approach speed, ensuring the pilot maintains adequate control authority to manage the aircraft safely.