NASA Facts NASA Hyper X Program Demonstrates Scramjet Technologies 2002.pdf

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1、NASAFactsNationalAeronauticsandSpaceAdministrationLangleyResearchCenterHampton,Virginia23681-2199OfficeofPublicAffairsFS-2002-07-61-LaRCJuly2002NASA“Hyper-X”ProgramDemonstratesScramjetTechnologiesX-43ABeingReadiedforFlightInPhaseIoftheHyper-XProgram,three12-foot-long,unpiloteda

2、ircraftdesignatedX-43A,willflyuptotentimesthespeedofsoundtodemon-strate“air-breathing”enginetechnologies.Eachhigh-flyingexperimentalaircraftwillflyoncewithinatestrangeoffthesouthernCaliforniacoast.TheNASAmulti-yearexperimentalhypersonichypersonicspeeds—speedsaboveMach5orfivegro

3、undandflighttestprogram,calledHyper-X,willtimesthespeedofsound.Thisisequivalenttodemonstrate“air-breathing”enginetechnologiesaboutonemilepersecondorapproximately3,600thatpromisetoincreasepayloadcapacity—ormilesperhouratsealevelandfarfasterthananyreducevehiclesizeforthesamepaylo

4、ad—forair-breathingaircrafthaseverflown.futurehypersonicaircraftand/orreusablespacelaunchvehicles.Builtaroundtheprogram’sX-43Asenvisioned,payloadcapacitywillbeincreasedresearchvehicle,thefirstflightinthistechnologybydiscardingtheheavyoxygenandassociateddemonstrationprogramtookp

5、laceonJune2,2001.tanksthatrocketsmustcarrybyusingapropulsionItwasunsuccessful,duetoarocketboosterfailure.systemthatusestheoxygenintheatmosphereasItwasplannedtobethefirsttimeanon-rocket,thevehiclefliesatmanytimesthespeedofsound.air-breathingscramjet(supersonic-combustionHydrogen

6、willfueltheprogram’sresearchvehicles,ramjet)enginehaspoweredavehicleinflightatbutitrequiresoxygenfromtheatmospheretoburn.Langley&Dryden—AJointEffort12ft.TheHyper-XPhaseIisaNASAAeronauticsandSpaceTechnologyEnterpriseprogrambeingconduct-edjointlybytheLangleyResearchCenter,Hampton

7、,5ft.Va.,andtheDrydenFlightResearchCenter,Edwards,Calif.Langleyistheleadcenterandisresponsibleforhypersonictechnologydevelopment.Drydenisresponsibleforflightresearch.PhaseIisasix-year,approximately$215millionprogramtoflight-validatescramjetpropulsion,hypersonicaerodynamicsandde

8、signmethods.Plan-ningforfollow-onMach5through7flightso