Effectiveness of a direct lift controller(DLC) for in-f light simulation was studied. The analysis result showed that the DLC is indispensable for the simulation of models operated in the backside region of the speed/resistance curve. DLC flaps were installed on the variable stability and response airplane(VSRA) of the National Aerospace Laboratory of Japan for demonstration. A model-following system was constructed to simulate a backside-operating model after tailoring feedback/feed-forward gains. Results of the flight test with this system indicated that a DLC is useful but not necessary for simulating frontside-operating models, whereas it is necessary to obtain practically acceptable model-following errors in the case of simulating backside-operating models. As an example of the simulation in the backside region, results of a simulated landing approach test were also described. 12 refs., 7 figs., 5 tabs.


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    Title :

    DLC wo mochiita backside model no in flight simulation. (In-flight simulation of backside operating models using direct lift controller)


    Contributors:
    Y. Tsukano (author) / T. Inagaki (author)

    Publication date :

    1992


    Size :

    16 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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