The invention discloses a double-
propeller foldable fixed-wing unmanned aerial vehicle which comprises a
nose, a
fuselage, an empennage and wings, and propelling propellers are arranged in front of the
nose; an air cylinder is arranged in the unmanned aerial vehicle body, pistons capable of doing
reciprocating motion are arranged on the left side and the right side of the interior of the air cylinder correspondingly, connecting rods are arranged at the opposite ends of the two pistons correspondingly, and the two crankshafts are driven by the connecting rods to do forward and reverse rotation at the same rotating speed correspondingly. The pistons are oppositely arranged on the left side and the right side of the air cylinder, the two propellers are driven by the pistons to oppositely rotate at the same time, then the rotating speeds of the two propellers are completely equal, and the two propellers are driven by the synchronous belt to rotate forwards and backwards at the same rotating speed. The two propellers are arranged on the aircraft body, so that torques generated by the two propellers are just counteracted mutually, tilting torque cannot be generated on the aircraft body, meanwhile, the aircraft is provided with various sensors and control modules, an advanced
intelligent control algorithm is utilized, autonomous stable flight and precise hovering can be achieved, and self-protection and safe landing can be achieved under the emergency situation. The method has high practicability and innovativeness, can be widely applied to the fields of
agriculture, surveying and mapping, fire fighting, rescue,
safety monitoring and the like, improves the
flight stability and
controllability of an aircraft, and has wide application prospects in the technical field of aircraft equipment.