Federal Aviation Regulations Practice Test

What does VS0 represent in aviation?

1. Maximum airspeed

2. Stalling speed in the landing configuration

3. Normal cruise speed

4. Minimum descent speed

The correct answer is: Stalling speed in the landing configuration

VS0 refers to the stalling speed of an aircraft in the landing configuration, which typically includes extended flaps and the landing gear down. This speed is critical for pilots, as it indicates the lowest speed at which an aircraft can be safely controlled without risking a stall while in a landing configuration. Understanding VS0 is essential for ensuring safe landings and approach maneuvers, allowing pilots to maintain adequate control of the aircraft during the crucial phases of landing. When flying below this speed in the landing configuration, there is an increased risk of stalling, which can lead to a loss of control. Therefore, pilots must maintain their airspeed above VS0 during approach and landing to ensure a safe and stable flight. This knowledge contributes to a pilot's overall situational awareness and decision-making during landing procedures.