Private Pilot License (PPL) Aerodynamics Practice Exam

Which of the following speeds is referred to as Vne?

1. Maximum structural cruising speed

2. Never exceed speed

3. Maximum flap extended speed

4. Power-off stalling speed

The correct answer is: Never exceed speed

Vne, or "Never Exceed speed," refers to the maximum speed limit that an aircraft should never exceed under any circumstances. This speed is significant because surpassing it can lead to structural failure or loss of control of the aircraft. The designation of Vne is critical for ensuring safety during flight, especially during turbulence or when making rapid maneuvering decisions. Understanding Vne helps pilots to make informed choices about their airspeed during various phases of flight. It is marked in red on the airspeed indicator, clearly indicating the theoretical maximum speed beyond which the aircraft's structural integrity could be compromised. Pilots are trained to avoid exceeding this speed to prevent damaging the aircraft. In contrast, maximum structural cruising speed (which is generally associated with Vno), maximum flap extended speed, and power-off stalling speed serve different purposes. Each of these speeds is essential for operational safety, but they do not hold the same critical importance as Vne in terms of preventing aircraft failure.