The results of a four phase effort to evaluate the application of hinged plate spoilers/dive brakes to a small general aviation aircraft are presented. The test vehicle was a single engine light aircraft modified with an experimental set of upper surface spoilers and lower surface dive brakes similar to the type used on sailplanes. The lift, drag, stick free stability, trim, and dynamic response characteristics of four different spoiler/dive brake configurations were determined. Tests also were conducted, under a wide range of flight conditions and with pilots of various experience levels, to determine the most favorable methods of spoiler control and to evaluate how spoilers might best be used during the approach and landing task. The effects of approach path angle, approach airspeed, and pilot technique using throttle/spoiler integrated control were investigated for day, night, VFR, and IFR approaches and landings. The test results indicated that spoilers offered significant improvements in the vehicle's performance and flying qualities for all elements of the approach and landing task, provided a suitable method of control was available.


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    Titel :

    Analysis and flight evaluation of a small, fixed-wing aircraft equipped with hinged plate spoilers


    Beteiligte:
    Olcott, J. W. (Autor:in) / Sackel, E. (Autor:in) / Ellis, D. R. (Autor:in)

    Erscheinungsdatum :

    01.09.1981


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





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