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Review and Evaluation of the Air Force Hypersonic Technology Program (1998) / Chapter Skim
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GLOSSARY
Pages 59-61

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 59...
... avionics: electronic systems, subsystems, and components used in aeronautical or astronautical systems; usually refers to the flight computer and associated sensors and control devices used in the flight control system of an air or space vehicle. Castor IVB class booster: a launch vehicle capable of boosting an experimental test vehicle weighing 3,000 to 5,000 pounds to hypersonic speeds.
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From page 60...
... inlet contraction: the geometric degree to which the air stream captured by the engine is compressed. inlet relaminarization: under some flight conditions, the cooling of the boundary layer by the walls of the air inlet causes the turbulent boundary layer to return to a laminar state, which greatly increases its displacement thickness; this can also happen in the nozzle, although the cause is primarily rapid acceleration rather than cooling of the wall.
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From page 61...
... system design integration: the complex, multidisciplinary 61 engineering task that includes selecting technologies, performing design trade-off studies, and generating a balanced system design that meets requirements and can be implemented. technology maturity levels: the degree to which a technology has been developed, ranging from level one for basic principles observed and reported, to level six for system or subsystem model demonstration in a relevant environment, to level nine for an actual system that has been flight-proven in mission operations.
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Key Terms

  • supersonic combustion
  • subsonic speeds
  • manufacturing development
  • boundary layer
  • molecular weight

  • hydrocarbon fuel
  • propulsion device
  • subsonic combustion
  • simulated mach
  • subsystem model

  • level six
  • includes selecting
  • simple models
  • term hypersonic
  • linear differential

  • low velocity
  • flight environment
  • standard air
  • low molecular
  • meets requirements

  • hypersonic effects
  • compounds prior
  • constituent gases
  • begin engineering
  • alternative concepts

  • unconfined jet
  • flight conditions
  • sink capacity
  • sound travels
  • experimental test


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