Light airscrew flying wing aircraft capable of taking off and landing in short distance

Abstract

The invention discloses a light airscrew flying wing aircraft capable of taking off and landing in short distance. The light flying wing is characterized by comprising a fuselage (11), wings (6, 7), two piston type engines, and two airscrews (4) respectively driven by two piston type engines, wherein each wing comprises a straight wing inner section (6) and a backswept and dihedral wing external section (7), the two piston type engines are respectively arranged in engine cars (5) below the straight wing inner sections (6) at two sides to avoid the interference of the above airflow. The light airscrew flying wing aircraft provided by the invention has the advantages that the excellent aerodynamic performance of a flying wing type aircraft is inherited by using the wing and fuselage fusion technique, the high-speed cruise performance is guaranteed; the short-distance taking off and landing ability is realized by comprehensively using slip-flow deflection power lift augmentation technique and strake wing technique, the requirement on ground field is greatly reduced; and the layout is simple in structure, less in control surface, easy to realize and maintain, and low in cost. An engine connecting shaft and a motor-driven ducted fan / airscrew can guarantee the high reliability of the aircraft, and the air safety is guaranteed.

Description

Technical field [0001] The invention relates to a light flying-wing aircraft capable of short-distance take-off and landing, and belongs to the technical field of fixed-wing aircraft design in aviation aircraft. Background technique [0002] The flying-wing layout aircraft usually has no tail, and the fuselage and wings are integrated into one, without obvious boundaries. The integrated design on the one hand makes the flying wing layout have high aerodynamic efficiency, low resistance, and high cruise speed. On the other hand, it also optimizes the load along the span direction, effectively reducing the structural weight. In addition, the aircraft layout also has good stealth performance, which is of great significance to military aircraft. However, due to the lack of tails, the control surfaces of the aircraft are on the wings. Viewed from the plane of symmetry, they are often too close to the center of gravity, resulting in low rudder efficiency and poor aircraft stability an...

AI Technical Summary

Problems solved by technology

However, because there is no tail, the control surfaces of the aircraft are all on the wings. Viewed along the symmetrical plane of the aircraft, they are often too close to the center of gravity, resulting in low rudder efficiency, poor stability and maneuverability of the aircraft, and due to poor torque trimming ability, limited The use of high-lift devices, which makes the take-off and landing performance of the aircraft poor, usually requires a longer roll distance

Although it has many advantages, the cost of overcoming its defects is often high, so that the conventional flying wing layout cannot be widely used in the field of light aircraft

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