A simplified computer analysis of the span-distributed-load airplane (in which payload is placed within the wing structure) has shown that the span-distributed-load concept has high potential for application to future air cargo transport design. Significant increases in payload fraction over current wide-bodied freighters are shown for gross weights in excess of 0.5 Gg (1,000,000 lb). A cruise-matching calculation shows that the trend toward higher aspect ratio improves overall efficiency; that is, less thrust and fuel are required. The optimal aspect ratio probably is not determined by structural limitations. Terminal-area constraints and increasing design-payload density, however, tend to limit aspect ratio.


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    Titel :

    Preliminary analysis of the span-distributed-load concept for cargo aircraft design


    Beteiligte:

    Erscheinungsdatum :

    1975-12-01


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch