【6A文】航空喷气燃料英文培训课件.ppt

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1、JETFUELAirlineTransitionCourseJETFUELSCIVILJETFUELSAviationturbinefuelsareusedforpoweringjetandturbo-propenginedaircraftandarenottobeconfusedwithAvgas.Outsideformercommunistareas,therearecurrentlytwomaingradesofturbinefuelinuseincivilcommercialaviation:JetA-1andJetA,botharekerosinety

2、pefuels.Thereisanothergradeofjetfuel,JetBwhichisawidecutkerosine(ablendofgasolineandkerosine)butitisrarelyusedexceptinverycoldclimates.JETA-1JetA-1isakerosinegradeoffuelsuitableformostturbineenginedaircraft.Itisproducedtoastringentinternationallyagreedstandard,hasaflashpointabove38°C

3、(100°F)andafreezepointmaximumof-47°C.ItiswidelyavailableoutsidetheU.S.A.JetA-1meetstherequirementsofBritishspecificationDEFSTAN91-91(JetA-1),(formerlyDERD2494(AVTUR)),ASTMspecificationD1655(JetA-1)andIATAGuidanceMaterial(KerosineType),NATOCodeF-35.JETAJetAisasimilarkerosinetypeoffuel

4、,producedtoanASTMspecificationandnormallyonlyavailableintheU.S.A.IthasthesameflashpointasJetA-1butahigherfreezepointmaximum(-40°C).ItissuppliedagainsttheASTMD1655(JetA)specification.JETBJetBisadistillatecoveringthenaphthaandkerosenefractions.ItcanbeusedasanalternativetoJetA-1butbecau

5、seitismoredifficulttohandle(higherflammability),thereisonlysignificantdemandinverycoldclimateswhereitsbettercoldweatherperformanceisimportant.InCanadaitissuppliedagainsttheCanadianSpecificationCAN/CGSB3.23MILITARYJP-4JP-4isthemilitaryequivalentofJetBwiththeadditionofcorrosioninhibi

6、torandanti-icingadditives;itmeetstherequirementsoftheU.S.MilitarySpecificationMIL-PRF-5624SGradeJP-4.JP-4alsomeetstherequirementsoftheBritishSpecificationDEFSTAN91-88AVTAG/FSII(formerlyDERD2454),whereFSIIstandsforFuelSystemsIcingInhibitor.NATOCodeF-40.JP-5JP-5isahighflashpointkerosin

7、emeetingtherequirementsoftheU.S.MilitarySpecificationMIL-PRF-5624SGradeJP-5.JP-5alsomeetstherequirementsoftheBritishSpecificationDEFSTAN91-86AVCAT/FSII(formerlyDERD2452).NATOCodeF-44.JP-8JP-8isthemilitaryequivalentofJetA-1withtheadditionofcorrosioninhibitorandanti-icingadditives;