国航机务英语第四册(口语)

CONTENTLessonOneAirConditioningP.103LessonTwoAutoFlightP.107LessonThreeAirSourceP.1111LessonFourCommunicationP.115LessonFiveAPUP.119LessonSixFireProtectionP.123LessonSevenEngineIgnitionP.127LessonEightOilP.131LessonNineFlightControlP.135LessonTenCentreMaintenanceSystemP.138LessonElevenAirConditioningLayOutP.144LessonTwelveNavigationP.149LessonThirteenAutoFlightP.153LessonFourteenHydraulicSystemP.158LessonFifteenElectricalPowerP.163LessonSixteenNavigationP.167LessonSeventeenFuelP.171LessonEighteenCentreMaintenanceSystemP.177LessonNineteenOilP.181LessonTwentyFlightControlP.184LessonOneAirconditioningSystemPartone:Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.Theairconditioningsystemsuppliespressurizationtothewholepassengercompartment,thecockpit,allthecargocompartmentsandtheavioniccompartment.Thereareareasinthefuselagethatarenotpressurizedandtheyareseparatedbypressurebulkheads.Areasthatarenotpressurizedarethelandinggearbays,theradomeandthetailcone.Exercises:1QuestionstotheText:1.Whereispressurizedbytheairconditioningsystem?2.Arethereanyun-pressurizedareas?Whatarethey?3.Radomispressurized,isn’tit?Exercises2:DescribeFig.1withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.Fig.1Fig.1AirconditioningsystemPartTwo:Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.Electricityismainlyusedforelectricalheating,forlighting,toproducemechanicalpower,andlastbutnotleasttosupplyalltheelectronicdevices.Electricalpowerforheatingismainlyusedinthegalleysforovensandcoffeemachines.Itisalsousedinantiicesystemstopreventicingofairdataprobes,watersystemsandcockpitwindows.Lightingequipmentismainlyusedinthecockpittoprovidesufficientgeneralbrightnessandtoilluminatetheworkingareaslikepanelsandmapsandinthecabinforpassengercomfortandsafetyandoutsidetheaircrafttomaketheaircraftvisibleforotheraircraftandtoilluminatethegroundduringtakeoffandlanding.Mechanicalpowerisproducedbyelectricmotors,whicharemainlyusedtodrivepumps,forexample,fuelandhydraulicpumpsortodriveavalvetothecommandedpositioninthefuel,hydraulicorairconditioningsystemortomovemechanicalpartslikedoorsandcargocontainers.Electronicdevicesthatareusedinnearlyallaircraftsystemsarethecomputersforsystemcontrolandmonitoringandthecontrolinputsandindicationsinthecockpitandsensorsthroughoutthewholeaircraft.Exercise1:QuestionstotheText:1.Whatiselectricalpowerusedfor?2.Weredoestheheatingforovenandcoffeemachinescomefrom?3.whatislightingequipmentusedfor?4.Arethereanylightingequipmentoutsidetheaircraft?5.Whatarethepurposeforthelightsoutsidetheaircraft?6.Howisthevalvecontrolled?7.Electronicdevicesareusedtocontrolvarioussystems,aren’tthey?Exercises2:DescribeFig.2withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.Fig.2ElectricalPowerLessonTwoAutoFlightPartOne:Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.Theaircrafthasthreeaxes.Theyarecalled:---thelongitudinalorx--axis---andthelateralory—axis---theverticalorz--axisTheAutopilotcontrolstheaircraftattitudedirectlyaround2axes,byelevatordeflectionsfromthepitchchannelandailerondeflectionsfromtherollchannel.AutolandAutopilotscanalsocontroltheaircraftattitudedirectlyaroundtheverticalaxisbyrudderdeflectionsfromtheyawchannel.TheYawdampercontrolstheruddertodampendutchrolloscillations(swings)duringtheentireflight.Thepitchtrimsystemmovesthehorizontalstabilizer,tocompensateforchangesinthecenterofgravityandcenterofliftduringflight.Autothrottleistheonlysystemthatcancontrolanaircraftmotionalonganaxis,calledatranslatorymotion.Itgeneratesaccelerationsinthex--axisbycontrollingtheenginethrust.Exercise1:QuestionstotheText:1.Howmanyaxesdoesanaircraftmovealong?2.WhatisthefunctionoftheYawDamper?3.WhatisthefunctionofthePitchtrim?4.Howdoesanaircraftaccelerate?5.Howisverticalmovementofanaircraftachieved?Exercise2:DescribeFig.3withwhatyouhavelearnedinthetext.Speakasmuchaspossiblewithyourownwords.Fig.3AxesofAnAircraftFig.3PitchYawandRollPartTwo:Readthefollowingpassageandmemoryasmuchasyoucan,andthendescribethediagrambelowwithyourownwords.Allmodernaircraftareequippedwithautoflightsystems.Typically,anautoflightsystemhasthefollowingsubsystems:--theAutopilot,orAPinshort--theFlightDirector,orFD--theAutothrottleSystem,usuallyabbreviatedasATS--theAutomaticPitchTrimSystem,alsocalledAutotrim--andtheYawDamperSystem,orYDTheFlightDirectorshowsthepilothowtoflytheaircraftmanually.ThisisdonebyFlightDirectorCommandbarsinthePrimaryFlightDisplay--PFDorAttitudeDirectorIndicator--ADI.TheAutothrottleSystemreducestheworkloadforthepilotsbycontrollingtheenginepowerautomatically.Autotrimmaintainspitchstabilityduringallphasesoftheflight.Itusuallyadjuststhehorizontalstabilizerautomatically.TheYawDamperimprovesthedynamicstabilityoftheaircraftduringthewholeflight.TheFMSdoesnavigationandperformancecalculationsforoptimumflightperformance.Exercise1:Questionstothetext:1.Howmanysubsystemsdoesautoflightconsistof?2.Whatdoesflightdirectorshow?3.W