Side view of one site with three drones at three positions: over an open paddock, over a road, and under a bridge above a river. The home pad is on the left. The command link is lost and all three run the same failsafe, chosen with the Failsafe buttons. Land: the paddock drone lands clear, the road drone lands on the road and the bridge drone lands in the water. Return to home: the drones climb to the return height and fly home; the paddock and road drones get home, but the bridge drone climbs into the bridge deck. Hover: all three hold position and wait until the battery runs low; under the bridge the aircraft may drift. Parachute: the motors stop and each aircraft comes down under a canopy where it is: clear in the paddock, on the road, and in the water. The same failsafe can suit one position and be dangerous at another. Outcomes are illustrative; real behaviour varies by aircraft and settings.
