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1、NATIONALAERONAUTICSANDSPACEADMINISTRATION+TextOnlySite+Non・FlashVersion+ContactGlennFINDIT@NASA:+G0+WORKFOR+MISSION+MYNASlngBn@Vocabulary+ABOUTNA+NEWS&EVE!+MULTIMECWhatisAeronautics?

2、DynamicsofFlight

3、Airplanes

4、Engines

5、HistoryofFliqhtIWhatisUEET?Vocabularv

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7、FunandGames

8、EducationalLinks

9、LessonPlans

10、SiteIndex

11、HomeVocabularyAviationAeronauticsisthestudyofthescieneeofflight.AerodynamicsThestudyofhowairflowsaroundtheairplane.AirAirisaphysicalsubstaneewhichhasweightandismadeupofmoleculeswhichareconstantlymoving.M

12、ovingairhasaforcethatwillliftkitesandballoonsupanddown.Airisamixtureofdifferentgases;oxygen,carbondioxideandnitrogen.AirfoilsThewingsofaplane・AileronsTheyarehingedonthewingsandmovedownwardtopushtheairdownandmakethewingtiltup.CombustorInthecombustortheairi

13、smixedwithfuelandthenignited・Thisprocessresultsinhightemperature,high-energyairflow・Thefuelburnswiththeoxygeninthecompressedair,producinghotexpandinggases.CompressorThecompressoristhefirstcomponentintheenginecore・Itismadeupoffanswithmanybladesanditisattac

14、hedtotheshaft.Thecompressorsqueezestheairandcreatesanincreaseintheairpressure・Thesquashedairisforcedintothecombustionchamber.DragResistaneethatslowsanobjectdownintheair.Itemsthatarestreamlinedhavelessdraginair.Elevatorsarefoundattherearoftheplane.Theycanb

15、eraisedorloweredtochangethedirectionoftheplanersnose.Theplanewillgoupordowndependingonthedirectionofthattheelevatorsaremoved・FanThefanisthefirstcomponentoftheturbofanengine.Thelargespinningfansucksinlargequantitiesofair.Thebladesofthefanpulltheairintothee

16、ngine.FinistheverticalpartofthetailFlapsTheflapsslidebackanddowntoincreasethesurfaceofthewingarea・FuselageThebodyoftheplaneGasTurbineAnothertermforengine・Gravityaforcethatpushesobjectscomedowntotheearth・HypersonicThisisthespeedofflightthatisusedbyrocketsi

17、nouterspace・Rocketscantravel5to10timesfasterthanthespeedofsound.Thatmeansthespeedis3500-7500MPH.AnexampleofthisspeedistheSpaceShuttle.LandingGearThewheelsofaplane.LawsofMotion-SirIsaacNewtonproposedthreelawsofmotion