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NASA X-43A Hyper-X Hypersonic Experimental Vehicle Family

The NASA X-43A Hyper-X was a series of three unpiloted hypersonic research aircraft that demonstrated air-breathing scramjet propulsion in free flight. Each lifting-body vehicle was designed for a single test mission; the second aircraft reached Mach 6.8 and the third reached Mach 9.6 in 2004, establishing the first successful scramjet-powered aircraft flights.

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Identity

Aliases
X-43AHyper-XX-43A Hyper-XHypersonic Experimental VehicleHyper-X Research Vehicle
Family Name
NASA X-43A Hyper-X
Full Name
NASA X-43A Hyper-X Hypersonic Experimental Vehicle Family
Roles
researchexperimentaltechnology_demonstrator
Status
retired
Type
aircraft

Details

Description
The NASA X-43A Hyper-X was a series of three unpiloted hypersonic research aircraft that demonstrated air-breathing scramjet propulsion in free flight. Each lifting-body vehicle was designed for a single test mission; the second aircraft reached Mach 6.8 and the third reached Mach 9.6 in 2004, establishing the first successful scramjet-powered aircraft flights.
Propulsion Configurations
  • Entries
    • Count
      1
      Placement
      airframe
      Propulsion System
      Role
      main
      Stage
      airframe
      Variant Notes
      One integrated X-43A scramjet test installation; the three vehicles were uncrewed research articles and the propulsion identity represents the whole airframe-integrated system.
    Name
    NASA X-43A airframe-integrated scramjet installation
    Notes
    NASA's X-43A propulsion was airframe-integrated: gaseous hydrogen fuel and atmospheric air supported scramjet operation after modified Pegasus booster separation. The B-52 carrier aircraft and booster are launch and acceleration systems, not installed X-43A propulsion. NASA's flight-test material records approximately ten seconds of scramjet operation after booster separation.

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Creation Time
August 15, 2026 at 03:24:10 UTC
Updated Time
September 7, 2026 at 22:50:27 UTC