Research Catalog

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  • Improvements in spiral-bevel gears to reduce noise and increase strength [microform] / David G. Lewicki ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Adelphi, Md.] : U.S. Army Research Laboratory ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
    • 1994

  • Advanced Rotorcraft Transmission (ART) Program [microform] : Boeing helicopters status report / Joseph W. Lenski, Jr. and Mark J. Valco.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, Aviation R&T Activity ; [Springfield, Va. : For sale by the National Technical information Service, 1991?]
    • 1991

  • Face-gear drives [microform] : design, analysis, and testing for helicopter transmission applications / F.L. Litvin ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : National Technical Information Service, distributor, 1992]
    • 1992

  • Gearbox vibration diagnostic analyzer [microform] : final report.

    • Text
    • Bedford, MA : Technology Integration ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1992]
    • 1992

  • Study of the kinematic and load sharing properties of wormgearing with non-symmetric tooth profiles [microform] / D.C. Sun and Qin Yuan.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

  • Efficiency study comparing two helicopter planetary reduction stages [microform] / Timothy L. Krantz and Robert F. Handschuh.

    • Text
    • [Washington, D.C.] : NASA ; [Cleveland, Ohio] : US Army Aviation Systems Command, Aviation R&T Activity ; [Springfield, Va. : For sale by the National Technical Information Service, 1990?]
    • 1990

  • Bell Helicopter Advanced Rotorcraft Transmission (ART) program [microform] : final report / [Zachary S. Henry].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Adelphi, Md.] : U.S. Army Research Laboratory ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

  • Cost benefit analysis of a 9-centistoke lubricant for helicopter transmissions [microform] : under contract NAS2-14118 / Thomas A. Cook and Michelle A. Consolini.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1997]
    • 1997

  • Advanced Rotorcraft Transmission Program (A.R.T.) [microform] : final report / Joseph W. Lenski, Jr.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

  • Meshing of a spiral bevel gearset with 3D finite element analysis [microform] / George D. Bibel and Robert Handschuh.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration : U.S. Army Research Laboratory ; Springfield, Va. : National Technical Information Service, distributor, 1996]
    • 1996

  • Evaluation of navy 9 cst oil in Bell helicopter M412 HP gearboxes [microform] / Zachary S. Henry and William R. Stapper.

    • Text
    • [Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1998]
    • 1998

  • Experimental evaluation of face gears for aerospace drive system applications [microform] / Robert F. Handschuh ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Cleveland, OH] : U.S. Army Research Laboratory ; [Springfield, Va. : National Technical Information Service, distributor, 1996]
    • 1996

  • Comparison of predicted and measured temperatures of UH-60A helicopter transmission [microform] / Harold H. Coe.

    • Text
    • [Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1989.
    • 1989
    • 1 Resource

    Available Online

    http://purl.access.gpo.gov/GPO/LPS60001

  • Advanced Rotorcraft Transmission Program [microform] / Robert C. Bill.

    • Text
    • [Cleveland, Ohio : Lewis Research Center, 1990]
    • 1990
    • 1 Resource

    Available Online

    http://purl.access.gpo.gov/GPO/LPS65734

  • Fiber optic strain sensor for planetary gear diagnostics / Jason S. Kiddy ... [and others].

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, [2011]
    • 2011
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo24048

  • Validation of helicopter gear condition indicators using seeded fault tests / Paula Dempsey, E. Bruce Brandon.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2013.
    • 2013
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo45764

  • Integrating condition indicators and usage parameters for improved spiral bevel gear health monitoring / Paula J. Dempsey, Robert F. Handschuh, and Irebert R. Delgado.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, June 2013.
    • 2013-6
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo51714

  • Investigation of sideband index response to prototype gear tooth damage / Paula J. Dempsey.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, November 2013.
    • 2013-11
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo54970

  • Evaluation of MEMS-based wireless accelerometer sensors in detecting gear tooth faults in helicopter transmissions / David G. Lewicki, Nicholas A. Lambert and Robert S. Wagoner.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, April 2015.
    • 2015-4
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo59970

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