In spite of just what the ads inform you, drones crash all the time. A superb drone will consider an unplanned descent and ground interface (aka: a crash) in stride, without the need of harmful the body. It will also include things like shields to protect the rotors and electronics https://www.aeroindustrial.com/por-que-el-dji-matrice-4t-es-el-futuro-de-las-operaciones-industriales-con-drones/