What is the visibility range for Marginal Visual Flight Rules (MVFR)?

The visibility range for Marginal Visual Flight Rules (MVFR) is established as 3 to 5 statute miles. This classification serves a specific purpose in aviation, indicating that while visibility is somewhat limited, it remains acceptable for visual flight operations under certain conditions.

In MVFR conditions, pilots must be particularly cautious, as the visibility can pose challenges for navigation and obstacle avoidance. Although it is possible for pilots to operate under these rules, they need to be well aware of their surroundings and the potential for weather changes that could worsen conditions.

The determination of this range is crucial for pilots to understand, as it impacts their planning and decision-making processes during flight operations. Being informed about the MVFR criteria allows for better assessment of flight safety and the necessary precautions that must be taken.