What is the stall speed in landing configuration referred to as?

The stall speed in landing configuration is referred to as Vs0. This specific term represents the minimum steady flight speed at which the aircraft can maintain controlled flight in the landing configuration, which typically includes full flaps and landing gear down. Understanding Vs0 is critical for pilots, as it indicates the speed below which the aircraft will stall if it is in a landing configuration.

Vs1, on the other hand, refers to the stall speed in a specified configuration (not necessarily landing), which may include different flap settings. Vx represents the best angle of climb speed, which maximizes altitude gain over a specific horizontal distance, while Va is the maneuvering speed, which indicates the maximum speed at which full deflection of the controls can be applied without risking structural damage. Each of these terms relates to different phases of flight or configurations, but only Vs0 defines stall speed specifically during landing configurations.