What is the role of the visual observer in UAS operations?

The role of the visual observer in UAS operations is primarily to assist the remote pilot in maintaining visual line of sight. The Federal Aviation Administration (FAA) stipulates that for many drone operations, especially those involving an operational area that extends beyond the remote pilot's visual line of sight, having a visual observer can significantly enhance safety. The visual observer serves as an additional set of eyes, maintaining awareness of the drone's position and surroundings, thus ensuring that the remote pilot can focus on flight controls while remaining compliant with regulations that require the UAS to be within visual range. This collaboration between the visual observer and the remote pilot is crucial for the safe operation of drones in various environments, particularly in avoiding obstacles, managing airspace, and ensuring the safety of people and property on the ground.

The other choices do not align with the primary function of the visual observer. For instance, controlling the flight path of the UAS is the responsibility of the remote pilot, and while conducting preflight checks and managing UAS registration are important tasks associated with drone operations, they fall outside the specific responsibilities designated for the visual observer.