侧滑对后掠翼飞机俯仰操纵影响的探讨

运用基础理论，对后掠翼飞机出现侧滑时的地仰状态变化进行分析。文中推导了后掠翼飞机的后掠角在有侧滑时对升力的影响，以及下洗角大小和分布的变化在水平尾翼处引起的俯仰力矩变化。通过时几种飞机的计算和分析比较，说明了后掠角在侧滑中具有提供上仰力矩的作用，从而在理论上解决了大后掠角飞机（如Ｊ—６飞机）出现侧滑时的急剧上仰现象和操纵措施问题，为在飞行中出现偏差进行修正提供了理论依据。对提高飞行员的驾驶技术和保证飞行安全有着积极的作用。

THE EFFECT OF SIDESLIP ON LONGITUDINAL CONTROL OF SWEPTWING AIRCRAFT

Applying basic principle,analyse the change of the longitudinal statewhen the sweptwing aircraft is in sideslip.In this paper,it will be discussed that thesweep angle of swept wing affects the lift of fighter in sideslip,and that the pitching mo-ment is changed by the change of the different downwash angle and distribution aroundahorizontal tail.According to the calculation,analysis and comparision,we concludethat the sweep angle have the function of providing nose up pitching mo-ment.Therefore,it is a theoretical explanation why the phenomenon of abrupt nose upoccour in big sweep angle fighter(for example J 6)in sideslip,and how to control.Itnot only provide a theoretical basis for correcting the deviation appearing in flight,butalso have an active effect in which a pilot driving technique and ensure flight safety.