In spite of exactly what the adverts inform you, drones crash all the time. A very good drone will take an unplanned descent and ground interface (aka: a crash) in stride, with no harmful the frame. It may even incorporate shields to shield the rotors and electronics from harm. The https://www.aeroindustrial.com/compra-drones-dji-y-accesorios-en-la-tienda-en-linea-de-aero-industrial/