In Switzerland the accident occurred the drone, which had to suspend indefinitely the program of cargo delivery drones sold by the startup Matternet in partnership with the postal service of Switzerland.
The newspaper Frankfurter Allgemeine Zeitung reported that a UAV weighing 10 kg, capable of transporting up to 2 kg of cargo, faced with the problem during the flight in Zurich in may this year.
Although the drone is equipped with an emergency parachute during an emergency landing was damaged connective cord of the parachute, leading to uncontrolled fall. It is reported that the unmanned aerial vehicle fell 150 feet (46 m) from the group of children. Fortunately, no one was hurt.
The incident occurred in may, but this became known only now. This was the second crash of the drone startup Matternet, the first occurred in January as a result of hardware errors the GPS. Then, the UAV has successfully opened the emergency chute and made a smooth landing. After this, steps were taken to improve the GPS system of the aircraft.
Matternet said that the fall of the UAV occurred in the area of Zurich in the wooded area not inhabited by people and is therefore more suitable for flying.
Matternet drones are used in partnership with email Switzerland for sending lab specimens from the medical center in cases of emergency.