Drone exam · Meteorology

The reported visibility is several kilometres, but haze makes a small grey drone difficult to see at only a few hundred metres. Is the report alone enough to justify the range?

Answer

No. The pilot must use the practical visibility of the aircraft in the actual light, background, and haze. Reduce range or change the operation if orientation and surrounding airspace cannot be monitored reliably.

Explanation

Reported visibility describes the atmosphere at a broader scale. A small object can disappear against haze or terrain long before the reported visibility distance.