Now the British troops in Afghanistan are using to search emplacements Taliban helicopters spy length of 10 cm and a weight of 16 grams. The British Defense Ministry plans to buy 160 of these drones cost of more than $ 31 million. Helicopter PD-100 PRS, received the code name Black Hornet is controlled remotely. It was developed by a Norwegian company “Prox Dynamics”. Drone is a traditional single-rotor helicopter the size of a toy. British troops use drones for reconnaissance, sending them forward to see enemy positions.