Cyclocopter - the original aircraft with vertical takeoff

It turns out that not only the rotor rotating in the horizontal plane is able to lift the aircraft into the air. Similar to the rowing wheels of an old steamboat, the cyclocopter rotors look very unusual, but nevertheless work. Until now, all attempts to create such an aircraft ended in failure, and only recently appeared the first flying models of cyclocopters. In the video - cyclocopter, developed at the University of Maryland.