What does Vso represent in aviation terminology?

Vso represents the stalling speed in the landing configuration of an aircraft. This speed is critical because it indicates the minimum speed at which the aircraft can be safely flown in a landing approach without risking a stall. In this configuration, the aircraft's flaps are typically extended, and any slow flight below this speed can lead to loss of control due to airflow separation over the wings. Knowing Vso helps pilots maintain safe operation during the critical phases of landing and approach, ensuring they keep the aircraft above this speed to avoid stalling when close to the ground.

Understanding Vso is fundamental for pilots because it assists in determining safe operating speeds during landing. This knowledge is essential for making good decisions in different phases of flight, particularly during approaches and landings, where safety margins are crucial.