The objective of the refan program is to demonstrate the technical feasibility of substantially reducing the noise levels of existing JT8D powered aircraft. The program consists of the design, manufacturing and testing of the refan engines and modified nacelles and airplanes. Experimental testing has been completed for the refan engine both at sea level and at altitude conditions. Ground testing for the B727 side- and center-engine installations and flight testing of the DC-9 with refan engines and acoustic nacelles have been performed. Analyses of the test results are in progress. Preliminary results presented in this paper show that substantial noise reductions were achieved.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    NASA REFAN PROGRAM STATUS


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    National Air Transportation Meeting ; 1975



    Publication date :

    1975-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Nasa Refan Program Status

    K. L. Abdalla / J. A. Yuska | NTIS | 1975


    NASA refan program status

    Abdalla, K. L. / Yuska, J. A. | NTRS | 1975



    The 727/JT8D refan side nacelle airloads

    Bailey, R. W. / Vadset, H. J. | NTRS | 1974


    The 727/Jt8d Refan Side Nacelle Airloads

    R. W. Bailey / H. J. Vadset | NTIS | 1974