German H.Buss and I.Busker in 2006, the dominated a four axis open source projects, from the flight control to electrically adjustable, and all other open source, launched a four axle vehicle most refer to the self driving instrument mikrokopter. In 2007, the four rotor equipped with Mikrokopter as a nail in the air is generally stuck in the air. Soon they added to the component and even made it a semi autonomous flight.
February 2012, University of Pennsylvania professor V.Kumar at the TED Conference on the development of the four rotor aircraft milestones in the history of speech, showing the flexibility of the four rotor and the formation of collaborative capabilities. This is a speech full of mathematical formulas popular, it allows the world to see the inherent potential of multi rotor.
In 2012, the American Association of engineers of robotics and Automation Magazine (Robotics & Automation Magazine, IEEE) published Aerial Robot and four rotor (Aerial Robotics and the Quadrotor special, summarizes the achievements, the show was the most advanced technology. During this period, before does not have multi rotor control function of the source of autopilot for increasing the function of multi rotor, but also open a new autopilot continue to join, which greatly reduces the threshold for beginners, for multi rotor industry development loaded on the wings.