A distributed suction high-lift boundary layer control system fitted to a standard liaison L-19 aircraft increased the aircraft CL max to 5.74 and decreased the take-off and landing distance over a 50-foot obstacle by 38 percent and 29 percent, respectively, with no increase in available power. The modified aircraft demonstrated acceptable stability, control, and handling characteristics in all flight phases, and the stalling characteristics were good, with no rolling tendency. Considerable structural modifications were necessary to obtain the above results. The small holes in the boundary layer control system operated quite successfully for a period of 5 years without clogging due to dust or rain. (Author)


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    Title :

    Flight Test Evaluation of a Distributed Suction High-Lift Boundary Layer Control System on a Modified L-19 Liaison Aircraft


    Contributors:
    S. C. Roberts (author) / M. R. Smith (author) / D. G. Clark (author)

    Publication date :

    1966


    Size :

    2 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English