Certified Flight Instructor (CFI) Practice Exam

What is the meaning of Vle?

1. Minimum unstick speed

2. Maximum landing gear extension speed

3. Critical engine failure speed during takeoff

4. Lift off speed

The correct answer is: Maximum landing gear extension speed

Vle stands for Maximum Landing Gear Extension Speed. It refers to the highest speed at which the landing gear may be safely extended. Exceeding this speed while extending the landing gear could cause structural damage or malfunction of the gear system due to the aerodynamic forces acting on the aircraft. Understanding Vle is crucial for pilots during the approach and landing phases of flight, as it helps to ensure the landing gear is deployed safely and effectively. Knowing this speed contributes to overall flight safety and adherence to aircraft operating procedures. The other options describe different speed markers that are important in aviation but are not related to the Vle designation. For instance, minimum unstick speed pertains to the speed required to lift off, while critical engine failure speed during takeoff relates to the aircraft's handling characteristics in the event of an engine failure. Lift-off speed, similar to unstick speed, is the velocity required for an aircraft to become airborne. Each of these terms is distinct and serves a specific purpose in the context of flight operations.