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【凤凰彩票】破坏失联飞机系统需是专业人士所为
2021-05-17 [89170]
本文摘要:ifmultiplecommunicationsystemsaboardmalaysiaairlinesflight 370 weremanuallydisabled, asinvestigatorsincreasinglysuspecthappennt itwouldhaverequireddetailedknowledgeofthelong-rangeboeingco.777 sinnner workings .的调查thefirstlossofthejetstransponder,whichcommunicatesthejetsposition,speedandcallsigntoairtrafficcontrolradar, wouldrequiredisablingacircuitbreakeraboveandbehindanoverheadpanel.pilots rarely,if ever, need to access the circuit breakers whicharereservedformaintenancepersonnel .首先重启的应答器可以向空中交通管制雷达发送飞机的方位、速度和呼叫信号,再次向上达飞行员很少不得不为修理者使用预定的断路器。

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ifmultiplecommunicationsystemsaboardmalaysiaairlinesflight 370 weremanuallydisabled, asinvestigatorsincreasinglysuspecthappennt itwouldhaverequireddetailedknowledgeofthelong-rangeboeingco.777 sinnner workings .的调查thefirstlossofthejetstransponder,whichcommunicatesthejetsposition,speedandcallsigntoairtrafficcontrolradar, wouldrequiredisablingacircuitbreakeraboveandbehindanoverheadpanel.pilots rarely,if ever, need to access the circuit breakers whicharereservedformaintenancepersonnel .首先重启的应答器可以向空中交通管制雷达发送飞机的方位、速度和呼叫信号,再次向上达飞行员很少不得不为修理者使用预定的断路器。pullingonespecificcircuitbreaker,which is labeled, wouldrenderinoperativebothofthe 777 stransponders, accordingtodocumentsreviewedbythewallstreetjournalandbolsteredbycommentsfromaccordingtoaviationindustryofficialsandthosewhohave 根据3010(thewallstreetjournal )看到的文件、航空行业官员、服务波音777的人获得的信息,拆下某个断路器(断路器上有标签)后,飞机上的两个应答器将停止。becomingfamiliarwiththe 777 ssystemsrequiresextensivetrainingforpilotsandaircraftmechanicsalike,experts said. However, considerabletechnicaldataontheairplaneisalsoavailableonlineindiscussiongroupsorotherwebsites .的专家为了熟悉波音777系统,需要派但是,该机型相当多的技术数据也可以在讨论组和其他网站上获得。investigatorsaretryingtoestablishasequenceofeventsthattranspiredonthejet,which vanished from radar March 8, mostcriticallythelossofcommunication .对于3月8日在雷达画面上消失的飞机,调查员试着对机上再次发生的事件进行了排序。

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theshutdownoftheonboardreportingsystemshortlyafterthejetwaslastseenonradar, canbeperformedinaseriesofkeystrokesoneitherofthecockpitstwoflightmanagementcomputersinthecockpit.thecomputersareusedtosetto pen akeoff,plan the route,aswellasotherfunctionstoguidethe 777 .飞机最后在雷达画面后面经常出现的旋转使机载接收机系统重新启动,该操作者可以通过驾驶舱内的两台这些电脑被用作设定发动机起飞时的性能、计划飞行中的路线和指导777架飞机的其他功能。After vanishing是thejetssatellitecommunicationssystemcontinuedtopingorbitingsatellitesforatleastfivehours.thepingsceasedatapos whiletheaircraftwasatanormalcruisealtitude, saytwopeoplefamiliarwithejetslastknownposition.investigatorsaretryingtounderstandthatloss, andwhetherornotsomethingcatastrophichappenedorsomeoneswitchedoffthesatellitecommunicationsystem,says one of the people .失去了联系两名相关人员敦促卫星连接在印度洋上的某个地方中断,回答说当时飞机处于长时间的巡航高度。

其中一人说调查员试图理解中断的原因,或者再次发生了毁灭性的事情,或者重新启动了卫星通信系统。aphysicaldisconnectionofthesatellitecommunicationssystemwouldrequireextremelydetailedknowledgeoftheaircraft, itsinternalstructureanditssystems.thesatellitedatasystemisspreadacrosstheaircraftanddisablingitwouldrequirephysicalacccesstthes ldrequirephysicalaccess components.disconnectingthesatellitedatasystemfromthejetscentralcomputer,known as AIMS, woulddisableitstransmission.thecentralcomputercanbereachedfrominsidethejetwhileitisflying。butitswhereaboutswouldhavetobeknownbysomeonedeeplyfamiliarwiththe 777 .物理切割卫星通信系统必须充分了解飞机、其内部结构和系统。

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卫星数据系统扩展到机体,重新启动该系统必须实际认识重要的部件。从被称为AIMS的飞机中央电脑重新启动卫星数据系统,可以切断数据传输。飞机飞行中,飞机人员可以识别其中央电脑,但必须对这架波音777很了解。

gettingintotheareahousingthe 777 scomputerswouldnottakealotofknowledge是saidanaviationprofessionalwhohasworkedwithe 777.howeve toknowwhattodotheretodisablesystemswouldrequireconsiderableunderstandingofthejetsinnerworkings.someairlinesoutfitheaccess toto specialscrewtopreventunauthorizedintrusion,the person added .据服务过777种机型的航空专家称,转移到777架配备电脑的地区不一定多但是,该专家回答说关于关闭系统的方法,必须很好地理解飞机内部的工作原理。这位专家还说,一些航空公司不会在转移到这个地板下区域的舱门上安装特别的螺钉,防止允许的转移。

orbitingsatellitesaredesignedtocheckinwiththeaircraftssatellite-communicationsystemhourlyifnodataisreceivedduringthattime sfrow ctofscrutinyearlierthisweek,saidapersonfamiliarwiththematter,severaldaysaftertheplanefirst据知情人士透露,马航飞机失去联系几天后becausethepingsbetweenthesatelliteandtheaircraftregisteredthattheaircraftssatellitecommunicationssystemwashealthyandabletotrann thedatadidnotimmediatelyraiseanyredflagsinthehoursafterthejetsdisappearance .卫星与该客机之间没有数据连接的催促,因此飞机的卫星通信系统状况长时间, At first,theoriginofthefinalpingfromthemalaysiaairlinesjetseemedlikeananomalytoinvestigators,accordingtoapersonfamiliarwithth giventhattheplanewasbelievedtohavecrashedoffthecoastofvietnam, hundredsifnotthousandsofmilesfromthelocationofthefinalping .据知情人士透露,第一阶段,这架马航飞机已经在越南海域发生了事故。Until just a few years ago, thesatellitecommunicationsystemusedbyjetlinersdidntincludedataonanaircraftslocationinthepings, theelectronicequivalentofhandshakesusedtoestablishinitialcontact .直到几年前,客机使用的卫星通信系统包括飞机接收和催促数字联系的方位信息 For instance,beforeairfranceflight 447 crashedintotheatlanticoceanin 2009, thejetsentsomediagnosticdataindicatingproblemswithvariousonboardsystems, includingtheautopilotsdeactivation.butnotablytheplanespositionwasnttransmittedwiththatdata .例如2009年法国航空公司(airfrannce ) partlyasaresultittooknearlytwoyearstolocatetheplanesblackboxesandthemajorityofthewreckage.inthecaseofthemissingmalaysianjet l preciselocationswereprovided.however,itisunclearwhythetransmissionceasedandwheretheplanemayhaveendedupafterters近两年马航失联飞机事件有准确的方位信息。但是,还不清楚为什么这样的信号传输不会中断,以及在最后的数字连接被催促后飞机最后去了哪里。


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