Parametric studies were conducted to define the effects of advanced propeller (propfan) characteristics on aircraft direct operating costs, fuel consumption, and noiseprints. Selected propfan aircraft realized 21-percent fuel savings and 15-percent lower DOCs relative to advanced turbofan aircraft. While both the propfan and turbofan aircraft satisfied current federal noise regulations, the propfan aircraft had smaller noiseprints at 90-EPNdB noise levels but larger noiseprints at lower noise levels. Several techniques for reducing the propfan aircraft noiseprints were explored; some of these contribute substantial reductions in noiseprint areas. Also, a propfan aircraft for the C-X role was studied.


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    Title :

    Advanced turboprop cargo aircraft systems study


    Contributors:

    Conference:

    Aircraft Systems and Technology Conference ; 1981 ; Dayton, OH


    Publication date :

    1981-08-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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