Certified Flight Instructor (CFI) Practice Exam

What does Vlo stand for in aviation terms?

1. Minimum control speed with critical engine inoperative

2. Maximum landing gear extended speed

3. Design flap speed

4. Never exceed speed

The correct answer is: Maximum landing gear extended speed

Vlo stands for Maximum Landing Gear Extended Speed. This term is essential in aviation as it refers to the maximum speed at which an aircraft can safely operate with the landing gear extended and locked in place. Operating above this speed while the landing gear is down can lead to structural stress or potential failure of the landing gear mechanism. Understanding Vlo is vital for pilots because it directly affects the safety of the landing maneuver. Exceeding this speed can have adverse effects on the aircraft’s performance and handling characteristics, especially during the critical phases of approach and landing. In contrast, other terms, such as minimum control speed with the critical engine inoperative (Vmc), design flap speed (Vfe), and never exceed speed (Vne), denote different operational parameters that govern aircraft control and safety under various flight conditions but are not relevant to the context of Vlo. Familiarity with these terms ensures pilots adhere to safe operational practices and optimize aircraft performance under various conditions, emphasizing the importance of knowing and respecting the limitations associated with Vlo.