„British troops are using a nano drone just 10cm long and weighing 16 grams on the front line in Afghanistan to provide vital information on the ground.“
Well it look like the 20 € remote toy helicopters, but the surface of the rotor blade seems to be made out of carbon.
„Powered by battery, the Black Hornet is reported to have a range of about half a mile (800m), a top speed of 22mph (35kph) and can fly for up to 30 minutes.“
It uses GPS for waypoint navigation or can be directly navigated by a pilot. I ask myself how sensitive this drone will be to wind and other environmental influences.