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  • Effects of a forward-swept front rotor on the flowfield of a counterrotation propeller [microform] / M. Nallasamy and Gary G. Podboy.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
    • 1994

  • Noise of a model high speed counterrotation propeller at simulated takeoff/approach conditions (F7/A7) [microform] / Richard P. Woodward ; prepared for the 11th Aeroacoustics Conference sponsored by the American Institute of Aeronautics and Astronautics, Sunnyvale, California, October 19-21, 1987.

    • Text
    • [Washington, D.C.] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1987]
    • 1987

  • ASTROP2 users manual [microform] : a program for aeroelastic stability analysis of propfans / T.S.R. Reddy and John M. Lucero.

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

  • Investigation of advanced counterrotation blade configuration concepts for high speed turboprop systems. Task 1, Ducted propfan analysis [microform] : final report / Edward J. Hall, Robert A. Delaney, and James L. Bettner.

    • Text
    • [Washington, D.C.] : National Aeronautics and Space Administration, [1990]
    • 1990
    • 1 Resource

    Available Online

    http://purl.access.gpo.gov/GPO/LPS67939

  • Some design philosophy for reducing the community noise of advanced counter-rotation propellers [microform] / James H. Dittmar.

    • Text
    • [Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, 1985]
    • 1985

  • Low-speed wind-tunnel tests of single- and counter-rotation propellers [microform] / Dana Morris Dunham, Garl L. Gentry, Jr., and Paul L. Coe, Jr.

    • Text
    • [Washington, D.C.] : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Springfield, Va. : For sale by the National Technical Information Service], 1986.
    • 1986

  • Advanced turboprop aircraft flyover noise [microform] : annoyance to counter-rotating-propeller configurations with a different number of blades on each rotor : preliminary results / David A. McCurdy.

    • Text
    • Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [1988]
    • 1988
    • 1 Resource

    Available Online

    http://purl.access.gpo.gov/GPO/LPS89907

  • Takeoff/approach noise for a model counterrotation propeller with a forward-swept upstream rotor [microform] / Richard P. Woodward, ... [et al.].

    • Text
    • [Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, 1993]
    • 1993

  • Updated assessment of an open rotor airplane using an advanced blade design / Eric S. Hendricks [and four others].

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, August 2013.
    • 2013-8
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo50523

  • Application of an aligned and unaligned signal processing technique to investigate tones and broadband noise in fan and contra-rotating open rotor acoustic spectra / Jeffrey Hilton Miles and Lennart S. Hultgren.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, September 2015.
    • 2015-9
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo64653

  • ASTROP2 users manual : a program for aeroelastic stability analysis of propfans / T.S.R. Reddy and John M. Lucero.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, March 1996.
    • 1996-3
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo66479

  • Performance and weight estimates for an advanced open rotor engine / Eric S. Hendricks and Michael T. Tong.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2012.
    • 2012
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo33031

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