I flew FPV yesterday and lost the quadcopter in a field with about 50 cm (20 inches) tall grass. I flew in GPS-mode. The best thing I've come up with is two people holding a rope at each end with something heavy tied to it in the middle. Walking at a distance from another and in that way screen the field for the quadcopter. Another good idea would be to go look for it with another quadcopter. If there is any here from Gothenburg, Sweden please contact me! What's your idea?