I don't get the 400ft/1km limit at all. An airliner on approach will be below 400ft from roughly 2.5km from the threshold, so why on earth would you allow drones to go up to 400ft as close as 1km?
I don't get the 400ft/1km limit at all. An airliner on approach will be below 400ft from roughly 2.5km from the threshold, so why on earth would you allow drones to go up to 400ft as close as 1km?