How is Vso defined in aviation terminology?

Vso is defined as the stalling speed or the minimum steady flight speed in the landing configuration. This term is crucial because it signifies the lowest speed at which the aircraft can maintain controlled, level flight while configured for landing, which typically involves full flaps and landing gear down. Understanding Vso is vital for pilots to ensure they do not approach stall conditions during landing or approach phases of flight, which could lead to dangerous situations.

This definition encompasses not only the stalling aspect but also the stability of the aircraft in its landing configuration, emphasizing the importance of maintaining adequate airspeed. This knowledge helps pilots determine safe operating limits and improve their overall situational awareness during critical phases of flight.