A drone – also known as a quadcopter or multicopter – has four or more propellers which provide vertical lift from each corner, and an on-board processor to control the lift from each rotor and keep the machine broadly level. They are surprisingly quick and agile, with quick direction changes achieved by leaning the drone slightly off the horizontal, so a proportion of the props' energy is directed sideways In the 10 years since the first ready-to-fly drone went on sale, drones have grown greatly... And we've already seen some very interesting launches in 2020–including the Autel 8 K model, the PowerEgg X (which can land on water) and the V-Copter Falcon gull-wing–which could enter our list of the best drones in the coming months.