How is Vs depicted on the airspeed indicator?

Vs, or stall speed in a specified configuration, is depicted on the airspeed indicator as the lower limit of the green arc. The green arc represents normal operating speed range and indicates the airspeeds where the aircraft can be flown safely without entering stall conditions under normal flight configurations. Specifically, this lower limit signifies the speed below which the aircraft could potentially stall if it is at an angle of attack that exceeds its critical angle.

The airspeed indicator is designed this way to help pilots identify safe flying speeds during various phases of flight. Knowing where Vs falls on the airspeed indicator is critical for ensuring that the aircraft is flown above stall speed during maneuvers or approaches. Pilots rely on this visual cue to make informed decisions about airspeed management, especially during takeoffs, landings, and turns, where stalling is a greater risk.