Gasoline-electric hybrid coaxial helicopter based on multi-rotor manipulation

The invention discloses a gasoline-electric hybrid coaxial helicopter based on multi-rotor manipulation and belongs to the technical field of design and manufacture of aircrafts. Rotors perform coaxial contra-rotation under the drive of engines, related manipulation components such as a swashplate and the like on a propeller shaft in an existing coaxial double-rotor system are removed, and the rotors are manipulated and controlled by a multi-rotor system. The multi-rotor system comprises four brackets, four small rotors and four motors, wherein the brackets are fixed on a helicopter body and located in the center of the propeller shaft, one small rotor and one motor are arranged at the tail end of each bracket, and the small rotors are driven by the respective motors. The gasoline-electric hybrid coaxial helicopter is provided with lift force by double oil-driven coaxial rotors, can fly for a longer time under the condition of larger load, has high aerodynamic efficiency and is compact in structure; the headi