XZ-4 Vertical Takeoff and Landing Multi-Rotor Aircraft

The rapid development of unmanned multi-rotor helicopters has made small electric helicopters ubiquitous and wide spread in our everyday life. From photographic platforms to scientific test beds these machines have invaded our work and activities to a significant extend engaging into areas of service and utilisation that no other technical tool after the personal computer and the smart phone has ever achieved. But with its fast development the limits of the new technology soon are revealed. Multi-rotor helicopters cannot fly to a long distance nor can they sustain prolonged periods of flying without charging the batteries. On the other hand, the good old fixed wing aircraft now equipped with electric motors copes well with such tasks. A solution to this requirement is the already well studied and tested vertical takeoff and landing technology. But all present developments implement cumbersome and extremely complex systems to achieve the so defined goal. The current article presents a novel construction of the vertical takeoff and landing electric multi-rotor aircraft, which solves all present problems of complex and expensive structures and systems and offers a simple yet high quality vertical takeoff and landing aircraft design.