Optimum Flap Schedules and Minimum Drag Envelopes for Combat Aircraft

Rajeswari, B and Prabhu, KR (1987) Optimum Flap Schedules and Minimum Drag Envelopes for Combat Aircraft. Journal of Aircraft, 24 (06). pp. 412-414.

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    Abstract

    Wing leading - and trailing-edge flaps are usually deployed13; to improve the lifting ability of wings, especially13; during takeoff and landing. In recent times, however, these13; flaps have been used also during maneuver conditions to im-13; prove the aerodynamic efficiency (LID). Some examples of13; aircraft usingsuch devices are F-4E, F-5E, F-16, F- 18, etc. During a maneuver, the flaps automatica!ly follow a predetermined deflection schedule which is a function of Mach number and angle of attack. The flap deflection schedule is mainly determined through extensive wind-tunnel tests. 13; In this paper, a simple analytical method based on linear theory is developed to determine the optimum flap schedule13; for both leading and trailing edge flaps.

    Item Type: Journal Article
    Uncontrolled Keywords: Optimum flap schedules;Minimum drag envelopes;Combat aircraft; lift coefficient;Wing area
    Subjects: AERONAUTICS > Aircraft Propulsion and Power
    Division/Department: Aerodynamics, Other
    Depositing User: M/S ICAST NAL
    Date Deposited: 25 Oct 2006
    Last Modified: 24 May 2010 09:51
    URI: http://nal-ir.nal.res.in/id/eprint/3055

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