Swept wing

 Swept Wing Technology definitions Chinese name : English name swept wings : swept back wing definition: wing sweep angle is equal to or greater than 20 ° wing . Applied science: Aviation Technology ( a subject ) ; aircraft ( two subjects ) The above content validation by the National Science and Technology Committee announced the wings backward along the span of each section of the wing called the swept wing , this wing the appearance is characterized by both its leading and trailing edge swept back . The degree of wing sweep swept the size to represent. Compared with the straight wing ,2013 Adidas Soccer, swept wing aerodynamic characteristics of the wing is to increase the critical Mach number , and reduces resistance when supersonic flight . Aircraft in flight, when the wing leading edge perpendicular to the air flow velocity close to the speed of sound , the upper surface of the wing by localized airflow convex airfoil effect ,2013 New Adidas Soccer Shoes, its speed will exceed the speed of sound , a partial shock , so that flight resistance increased dramatically. Swept wing perpendicular to the wing leading edge allows the airflow velocity component is less than the flight speed , which compared with the straight wing , only at higher flight speeds circumstances will shock ( ? Ie increase the critical Mach number ) , ? thus postponing the airfoil surface shock wave generation, even if there is shock , but also help to reduce the shock strength and reduce wind resistance . Sweep drawback is poor torsional stiffness , the lower slope of the lift , air easily from the wingtip at the separation, subsonic flight,Nike CTR360 AG, inducing greater resistance and so on. Swept-wing aircraft wing aircraft is the world's air force wing of the mainstream form of swept-wing aircraft maneuverability , operational, general -wing aircraft is unmatched in the empty Battle , good controllability greatly enhanced aircraft survivability.