Is it true that Visual Line of Sight refers to the greatest horizontal distance at which prominent objects can be viewed with the naked eye?

Visual Line of Sight (VLOS) refers to the ability of the operator to maintain direct visual contact with the unmanned aircraft without any reliance on instruments. This definition encompasses the greatest horizontal distance at which the operator can see the aircraft and ensure its path, making the assessment of prominent objects with the naked eye essential for safe operation. Therefore, the statement aligns perfectly with the established standards and definitions within the context of unmanned aerial systems.

The clarity of the term VLOS is crucial for effective drone operation, as it ensures that the operator remains aware of their surroundings, helps prevent collisions, and facilitates better decision-making during flight. Factors such as environmental visibility and weather conditions can influence VLOS, but they do not alter the fundamental definition provided in this context. Understanding VLOS is essential for compliance with regulations for unmanned aircraft operations.