What does the acronym VLOS stand for?

The acronym VLOS stands for Visual Line of Sight. This term is crucial in the context of sUAS (small Unmanned Aircraft Systems) operations as it refers to the requirement that the remote pilot must be able to see the aircraft with their own eyes, without the aid of visual enhancements like binoculars or cameras, during flight. Maintaining VLOS ensures that the pilot can monitor the aircraft's position, orientation, and the environment around it, which is vital for safe operation and helps prevent collisions with other aircraft, obstacles, or people.

In aviation regulations and operational guidelines, this concept of maintaining visual contact with the drone during its operation is essential for enhancing situational awareness and ensuring compliance with safety protocols. Being aware of the surrounding environment while operating a sUAS not only contributes to safety but also enhances the pilot's ability to make informed decisions in real-time.