Pilots can't spot drones 70 per cent of the time - shock experiment reveals

Pilots can't spot drones as they approach a runway, warns a shock new study. They fail to catch sight of the flying gadgets 70 per cent of the time - even when they are in their airspace, according to the findings. And they almost never identify the machines if they are hovering motionless above the ground. The disturbing findings uncover a'real and present danger' to safety, warn US aviation experts. Study co author Dr Ryan Wallace, of Embry-Riddle Aeronautical University in the United States, said: 'Dangerous close encounters between aircraft and drones are becoming an increasingly common problem.