What is a Quadcopter Anyway?
The most common form of consumer 'drone'; A quadcopter is a multirotor helicopter with four arms, a motor and propeller at the end of each of these arms. Two of the propellers spin clockwise and the opposing two spin counter-clockwise enabling the craft to hover and fly with great stability. They range in size (shown below, left to right) from professional drones such as the DJI Inspire 1, to smaller consumer craft like DJI's Phantom range right down to inexpensive micro drones such as Hubsan's hobby range. Advances in electronic miniaturisation and flight controller technology have meant these craft are getting more advanced every year.