Four-power-source tilting aircraft

The four-power tilting aircraft comprises an aircraft body, the aircraft body is provided with a wing system and a tilting propelling device, and the tilting propelling device comprises two pairs of upper rotors and lower rotors which are located at the two ends of wings; by arranging the tilting mechanism, the aircraft has the advantages of high flight speed and long endurance time; due to the design of four rotor power sources, a traditional system power transmission shaft and a universal joint of the aircraft are removed; meanwhile, by arranging the tilting rotor wing structure, the weight of the tilting propelling device is minimized, the weight of the aircraft is reduced, and the thrust-weight ratio efficiency is improved; in addition, the rotors guarantee safe sliding under the condition that the whole engine fails, and the four-rotor aircraft is more reliable than a traditional four-rotor aircraft; the tilting device is matched with four power sources, so that the aircraft can realize short-distance ta