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Hypersonic Technology for Military Application (1989) / Chapter Skim
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Appendix D: Dimensionless Groups in Fluid Mechanics
Pages 90-91

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From page 90...
... Facilities for structural testing at 1200° C and above do not exist. Details of the upper atmosphere, including its local composition and flow turbulence are not sufficiently well-known to adequately establish the relation of flight conditions to results from ground test facilities.
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From page 91...
... , or to attain very rapid transport services between earth destinations from conventional runways, must be viewed as aerospace options with global importance for the future." The National Aerospace Plane program has been established to build a single stage research vehicle that can take off from a runway, achieve orbit, and return. A joint program among DARPA, Air Force, SDIO, Navy, and NASA, with planned total funding of $3.1B, NASP is in an accelerated technology development phase (II)
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Key Terms

  • hypersonic technology
  • test facilities
  • including availability
  • earth destinations
  • construction require

  • critical technical
  • global importance
  • evolving results
  • plane program
  • hypersonic flight

  • contribute substantially
  • technical feasibility
  • flight conditions
  • program approach
  • transport services

  • requirements including
  • aerospace plane
  • rapid transport
  • adequately establish
  • technical risk

  • vehicle program
  • local composition
  • upper atmosphere
  • orbit research
  • single stage

  • technology base
  • accelerated technology
  • readiness assessment
  • nasp research
  • risk reduction


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