Scientists have developed a quadrotor helicopter, or quadcopter, that can learn to fly acrobatic manoeuvres that would challenge even a human operator. The drone, developed with US tech giant Intel, uses a navigation algorithm that allows it to autonomously perform tricks using on-board sensor measurements. In demonstrations, researchers flew power loops, barrel rolls and matty flips, during which the drone was subject to high thrust and extreme angular acceleration. A drone with the ability to perform tricky stunts will be more efficient in conventional operations, the research team say. It can be pushed to its physical limits, make full use of its agility and speed and cover more distance within its battery life.