This document presents acoustical data and flight path information acquired during the FAA/HAI Helicopter Flight Operations Noise Test Program. 'As-measured' noise levels of the Aerospatiale 365N, Agusta 109A, Bell 206L-1 and 222A, Hughes 500D, MBB BK117, Robinson R22, and Sikorsky S76 are presented for various enroute and heliport flight operations. Thse operations include level flyovers at two altitudes, normal takeoffs, normal and constant-gildeslope approaches, various types of noise abatement approaches, level flight turns and hover (IGE and OGE). The acoustical data are accompanied by radar tracking data and cockpit instrument panel information which document the operational procedures flown, and meteorological measurements to permit data corrections for nonstandard atmospheric conditions. This helicopter operational noise data base can be used in enroute and heliport land use planning, heliport environmental studies and planning guidelines, pilot familiarization and training, verification of noise prediction and estimating methods, and lateral attenuation studies.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Flight Operations Noise Tests of Eight Helicopters


    Contributors:

    Publication date :

    1985


    Size :

    730 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Noise characteristics of eight helicopters : final report

    USA, Federal Aviation Administration, Systems Research and Development Service | SLUB | 1977



    Development and flight tests of an instrument flight director for helicopters

    Brotherhood, P. / Aeronautical Research Council | TIBKAT | 1958


    Noise Measurement Flight Test of Five Light Helicopters

    E. J. Rickley / K. E. Jones / A. S. Keller et al. | NTIS | 1993


    Flight tests of IFR landing approach systems for helicopters

    Bull, J. S. / Hegarty, D. M. / Peach, L. L. et al. | NTRS | 1981