《航空专业英语》课件AMM阅读（24章）

1、深航机务培训中心民航维修专业英语ATA34 Navigation制作人：陈梦颖审核人：孔玲红课件版权归深航机务培训中心所有VocabularyPassage NavigationPASSAGE Q：What kind of function data does the navigation system provide?what subsystems does each function have? Q1.What is the name for each system?Q2.What do each subsystem do?Q3.What components does each func

2、tion system have?QUESTIONSNavigation system provides these data which can be divided into four groups:1. ADIRS(air data/inertial reference system)2.Landing and taxing aids3.Independent position determining 4. Dependent position determiningAir data functionthree main systems + a standby system(four i

3、ndependent sources)ADIRSThree main systemsstatic probespitot probesassociated Air Data Modules(ADM)Total Air Temperature(TAT)Angle of Attack(AOA)A standby systema standby altimetera standby airspeed indicator a metric altimeter(optional)ISIS(optional)Attitude, heading and position function(four inde

4、pendent sources)ADIRSThree Main Systemsthree IR portions a Mode Selector Unit(MSU)provides: inertial reference information, attitude(pitch, roll and yaw), heading, ground speed and present positionA standby systema standby horizon indicatora standby compassISISIntegrated Standby Instrument System(IS

5、IS)equals to the standby altimeter the standby airspeed indicatorthe standby horizon indicatorLanding and Taxing AidsParavisual Indicator (PVI)Head Up Display(HUD)Instrument Landing System(ILS)Multi-Mode Receiver(MMR)controlled from FMGCs and RMPsILS: 2 ILS receivers, a Localizer antenna, a Glide/Sl

6、ope antennaMMR: ILS+GPS2 MMR receivers, a Localizer antenna, a Glide/Slope antenna, 2 GPS ACTIVE antennas.Independent Position Determining 1. Weather radar system2. Radio altimeter3. Traffic Collision Avoidance System(TCAS)4. Ground Proximity Warning System(GPWS)5. Terrain and Traffic Collision Avoi

7、dance System(T2CAS)Weather radar system-detection and localization of the atmospheric disturbances-presentation of terrain mapping information-detection and presentation of windshear1 or 2 transceiversa control unita flat plate antenna and its drive unitRadio altimeterto determine precisely and cont

8、inuously2 transceivers four identical antennasTCAS-to protect a volume of airspace around the TCAS equipped aircraft-if a potential conflict exsits, aural and visual advisoriesa TCAS computer unit2 TCAS antennasGPWSto inform the crew if the aircarft is in a dangerous configuration when approaching t

9、he ground in a non-predetermined manner5 modesEnhanced GPWSto alert the flight crew of potentially hazadrous conditions with respect to the terrainTCFTADT2CASto alert the crew of 2 kinds of hazards which are collision with terrain and collision with surrounding trafficcombination of TCAS and TAWS-de

10、tects the hazards-alerts the crew of the aircraft environment-when possible, proposes escape manueuversDependent Position Determining1.Distance Measuring Equipment(DME)2.Air Traffic Control(ATC)3.Automatic Direction Finder(ADF)4.VHF Omni Range(VOR)5. Globle Positioning System(GPS)DMEenables the dist

11、ance separating the aircraft from one or two DME station being received to be knowna DME interrogatora transmission /reception antennaATCallows an operator of the corresponding equipment on the ground to locate and identify the aircraft in flight without having to communicate with the crew2 ATC tran

12、spondersa ATC/TCAS control unitfour ATC antennasADFenables the bearings of one or two ADF ground transmitter stations to be permanantly indicated with respect to the aircraft heading1 or 2 transcivers2 ADF loop and cense antennasVOR- enables the bearings of one or two VOR ground transmitter stations

13、 to be permanantly indicated with respect to the aircraft heading-indicates the aircraft course deviation with respect to preselected course2 VOR/MKR receiversa VOR antenna to supply the supply the 2 VOR/MKR receivers a MARKER antennaGPS-provides the crew with a readout of accurate navigation inform

14、ation. e.g. position, track and speed-provides the FMGC with position information for accurate position fixing2 GPS Sensor Units2 GPS antennasThe system monitors the trajectory of the other aircraft for the purpose of determining if any of them constitute a potential collison hazard.（TCAS）trajectory 轨道、弹道collision hazard 碰撞危险for the purpose of 因为、为了if从句Useful Expressions If a potential conflict exists, the system provides the pilots with aural and visual advisiories which indicate the vertical avo