Human eyesight is much more acute than a phone camera, especially filming video at 1080p. The runway at Gatwick is two miles long, plus taxiways and the apron.

Human eyesight is much more acute than a phone camera, especially filming video at 1080p. The runway at Gatwick is two miles long, plus taxiways and the apron. To a passenger in the terminal building, a drone flying over the runway is likely to appear as little more than a tiny speck.