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低空风切变对飞机在起飞和着陆阶段构成严重危害这一事实已被确认.美国联邦航空局(FAA)颁布的航空条例第121部第358条款(FAR121.358)及有关豁免文件,给出了机载前视式风切变告警系统的适航要求及合格审定方法,为这种系统的设计、验证和审定提供了较完整的理论依据.FAR121.358的主要内容是:凡1991年1月2日以后制造的飞机,都必须装备有经批准的机载风切变告警和飞行指引系统、机载探测和回避系统或这些系统的组合;对1991年1月2日以前制造的涡轮动力飞机,包括波音737-300以上的全部波音客机、MD-11系列以及空客系列等也必须装备上述系统.
The fact that a low-level windshear change has posed a serious hazard to the aircraft during take-off and landing has been identified in Section 358 (FAR 121.358) of Part 121 of the Aviation Regulations promulgated by the Federal Aviation Administration (FAA) and the exemption documents The airworthiness requirements and certification method of airborne front-view windshear alarm system provide a more complete theoretical basis for the design, verification and validation of such a system.FAR121.358 main content is: Where 1991 1 Aircraft manufactured after the 2nd of the month must be equipped with approved airborne windshear warning and flight guidance systems, onboard detection and avoidance systems or combinations of these systems. For aircraft manufactured before January 2, 1991, Aircraft, including all Boeing 737-300 Boeing passenger aircraft, MD-11 series and Airbus series must also be equipped with the above system.