What is meant by the term 'Visibility' in aviation?

The term 'Visibility' in aviation refers to the horizontal distance at which prominent objects can be seen with the naked eye. This is a critical factor for pilots, as it impacts their ability to navigate and maintain safe operations, particularly during takeoff, landing, and while flying in less-than-ideal weather conditions.

Visibility is often measured in statute miles and can significantly influence flight operations and decision-making. For example, low visibility conditions can necessitate adjustments in flight plans or require pilots to rely more on instruments rather than visual cues. Understanding visibility helps ensure that pilots maintain adequate distances from other aircraft and obstacles, contributing to overall safety in aviation operations.

The concept encompasses more than just how far you can see; it involves assessing the clarity of the air and the presence of obstructions such as fog, rain, or smoke that might diminish that distance. This understanding is essential for drone pilots, as it can affect how they manage their flights within the regulations of the FAA.