The YOV-10A Research Aircraft was flown to obtain flyover noise data that could be compared to noise data measured in the 40- by 80- foot wind tunnel at NASA Ames Research Center. The flyover noise measurements were made during the early morning hours on runway 32L at Moffett Field, California. A number of passes were made at 50 ft altitude in level flight with an airplane configuration closely matching that tested in the wind tunnel. Two passes were selected as prime and were designated for full data reduction. The YOV-10A was flown over a microphone field geometrically similar to the microphone array set up in the wind tunnel. An acoustic center was chosen as a matching point for the data. Data from the wind tunnel and flyover were reduced and appropiate corrections were applied to compare the data. Results show that wind tunnel and flight test acoustic data agreed closely. (Author)


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    Title :

    Comparison of Wind Tunnel and Flyover Noise Measurements of the YOV-10A STOL Aircraft


    Contributors:
    A. Atencio (author) / P. T. Soderman (author)

    Publication date :

    1972


    Size :

    28 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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