Research Catalog

  • Cruise noise measurements of a scale model advanced ducted propulsor [microform] / James H. Dittmar ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1993]
    • 1993
  • The alternative low noise fan [microform] / James H. Dittmar ... [et al.].

    • Text
    • [Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; Springfield, Va. : National Technical Information Service [distributor, 2000]
    • 2000
  • A fan design that meets the NASA aeronautics noise goals [microform] / James Dittmar, ... [et al.].

    • Text
    • [Cleveland, Ohio : NASA Glenn Research Center, 2003]
    • 2003

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