Drag prediction methods for prelimanary design of an aircraft

Prabhu, KR (1976) Drag prediction methods for prelimanary design of an aircraft. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    Preliminary design or feasibility study is the first stage13; of an aircraft design during which the designer is investigating, may be an apparent market opportunity or a draft requirement for a military aircraft. At this stage, the designer is examining suitability of chosing alternate configurations for the desired purpose and hence for the results to be realistic, it is necessary that the drag forecast Is accurate. It is important to note that pessimistic drag estimates at this early but crucial stage, may result finally in poor cost effectiveness, while an optimistic estimate may lead to frustration during13; detailed design and broken promises at the end. Thus, we see considerable merit in adopting a systematic and detailed approach for drag prediction even at the preliminary design stage and subjecting the results to careful scrutiny to ensure realism.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Viscosity;Reynolds number;Thrust reversors
    Subjects: AERONAUTICS > Aircraft Design, Testing & Performance
    AERONAUTICS > Aerodynamics
    Division/Department: Aerodynamics
    Depositing User: Deputy Head Poornima Narayana
    Date Deposited: 05 Sep 2006
    Last Modified: 24 May 2010 09:50
    URI: http://nal-ir.nal.res.in/id/eprint/2624

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