Acoustic test results are presented for a full-scale counterrotation demonstrator engine installed on a Boeing 727 aircraft in place of the right-side turbofan engine. Sideline acoustic data were acquired from a Learjet chase aircraft instrumented with noise and wing-tip flush mount microphones. Data are presented for a 47.2-m sideline at several engine operating conditions and flight Mach numbers of 0.50 and 0.72.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Cruise noise of an advanced counterrotation turboprop measured from an adjacent aircraft


    Contributors:

    Conference:

    NOISE-CON 88 ; 1988 ; West Lafayette, IN, United States


    Publication date :

    1988-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Measured far-field flight noise of a counterrotation turboprop at cruise conditions

    Woodward, Richard P. / Loeffler, Irvin J. / Dittmar, James H. | NTRS | 1989


    Measured far-field flight noise of a counterrotation turboprop at cruise conditions

    Woodward, R.P. / Loeffler, I.J. / Dittmar, J.H. | Tema Archive | 1990


    Measured Far-Field Flight Noise of a Counterrotation Turboprop at Cruise Conditions

    R. P. Woodward / I. J. Loeffler / J. H. Dittmar | NTIS | 1989