Vertical take-off and landing unmanned aerial vehicle having foldable fixed wing and based on twin-ducted fan power system

A vertical take-off and landing unmanned aerial vehicle, the aerial vehicle comprising a fuselage, a foldable wing, two ducts and a retractable landing gear, the fuselage being divided into a nose, a front fuselage, a middle fuselage and a rear fuselage along a longitudinal axis of the fuselage, wherein

• the two ducts are symmetrically distributed on both sides of the rear fuselage in a transverse and tail propulsion arrangement, each duct comprises a ducted fan, the ducted fan has an axis of rotation being located below a lower surface of the wing, and the axis of rotation of the ducted fan is substantially parallel to the longitudinal axis of the fuselage at all times;
• the foldable wing is in an upper single-wing arrangement and is fixed to the front of the middle fuselage via a wing folding shaft, the retractable landing gear is arranged at the front of the rear fuselage,
• the aerial vehicle is in a tailless arrangement, the center of gravity of the aerial vehicle is positioned in a region between the front fuselage and a leading edge of the wing;
• and
• the ducts and the wing are combined in an optimized manner by means of a specific position relationship therebetween.