The U.S. Army's UH-60A Black Hawk 2240-kW (3000-hp) class, twin-engine helicopter transmission was tested at the NASA Lewis Research Center. The vibration and efficiency test results will be used to enhance the data base for similar-class helicopters. Most of the data were obtained for a matrix of test conditions of 50 to 100 percent of rated rotor speed and 20 to 100 percent of rated input power. The transmission's mechanical efficiency at 100 percent of rated power was 97.3 and 97.5 percent with its inlet oil maintained at 355 and 372 K (180 and 210 F), respectively. The highest vibration reading was 72 g's rms at the upper housing side wall. Other vibration levels measured near the gear meshes are reported.


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    Titel :

    Testing of UH-60A Helicopter Transmission in NASA Lewis 2240-kw (3000-HP) Facility


    Beteiligte:
    A. M. Mitchell (Autor:in) / F. B. Oswald (Autor:in) / H. H. Coe (Autor:in)

    Erscheinungsdatum :

    1986


    Format / Umfang :

    30 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Mitchell, A. M. / Oswald, F. B. / Schuller, F. T. | NTRS | 1986


    Testing of UH-60A helicopter transmission in NASA Lewis 2240-kW (3000-hp) facility

    Mitchell, A. M. / Oswald, F. B. / Coe, H. H. | NTRS | 1986


    Helicopter transmission testing at NASA Lewis Research Center

    Lewicki, David G. / Coy, John J. | NTRS | 1987


    Helicopter transmission research at NASA Lewis Research Center

    Coy, John J. / Townsend, Dennis P. / Lewicki, David G. et al. | NTRS | 1988


    Nr. 2240

    DataCite | 1888