A 75 flight-hour operational evaluation was conducted with a representative four-engine fan-jet transport in a representative airport environment. The flight instrument systems were modified to automatically provide pilots with smooth and continuous pitch steering command information during two-segment approaches. Considering adverse weather, minimum ceiling and flight crew experience criteria, a transition initiation altitude of approximately 800 feet AFL would have broadest acceptance for initiating two-segment approach procedures in scheduled service. The profile defined by the system gave an upper glidepath of approximately 6 1/2 degrees. This was 1/2 degree greater than inserted into the area navigation system. The glidepath error is apparently due to an erroneous along-track, distance-to-altitude profile.


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    Title :

    Flight evaluation of two segment approaches for jet transport noise abatement


    Contributors:
    Rogers, R. A. (author) / Wohl, B. (author) / Gale, C. M. (author)

    Publication date :

    1973-06-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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