尾流是影响机场容量的重要因素之一,在保证安全前提下缩减尾流间隔能增加机场繁忙时刻航空器进离场架次,进而提高机场容量.美国和欧洲提出尾流标准重新分类(RECAT)概念,并在一些机场试运行,取得良好效果.基于国内某机场一周内航空器起降机型架次,将其重新分类,对比在现行ICAO和RECAT标准下的加权尾流间隔,证明在RECAT标准下尾流间隔将会缩减.通过改变不同航空器机型占比,分析机场容量变化,得出机场容量随航空器占比变化明显,对空管安全运行和机场及跑道运行效率提高具有实际参考价值.%Wake turbulence acts as one of the important factors affecting the airport capacity .It is able to increase the arrival and departure sorties of aircraft during the airport busy hours by reducing wake turbu -lence separation under the premise of ensuring safety , thus improving the airport capacity .The United States and Europe has proposed the concept of re-categorization ( RECAT) and conducted the trial opera-tions in some airports,which has achieved good effects.The wake turbulence separation is recategorized according to the aircraft-type sorties for takeoff and landing of domestic airport within one week , and compared with the weighted wake turbulence separation under the current ICAO standard and RECAT standard ,so as to demonstrate that the separation can be reduced under the RECAT standard .Meanwhile , it is concluded that the airport capacity varies significantly with the aircraft proportion by changing the proportion of different aircraft types and analyzing the airport capacity changes ,which is of practical refer-ence value in the safe operation of air traffic control as well as improved operation efficiency of airport and runway.
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