Six-degree-of-freedom ground-based and in-flight simulator studies were conducted to evaluate the low-speed flight characteristics of a twin-fuselage passenger transport airplane and to compare these characteristics with those of a large, single-fuselage (reference) transport configuration similar to the Lockheed C-5A airplane. The primary piloting task was the approach and landing task. The results of this study indicated that the twin-fuselage transport concept had acceptable but unsatisfactory longitudinal and lateral-directional low-speed flight characteristics, and that stability and control augmentation would be required in order to improve the handling qualities. Through the use of rate-command/attitude-hold augmentation in the pitch and roll axes, and the use of several turn coordination features, the handling qualities of the simulated transport were improved appreciably. The in-flight test results showed excellent agreement with those of the six-degree-of-freedom ground-based simulator handling qualities tests. As a result of the in-flight simulation study, a roll-control-induced normal-acceleration criterion was developed. The handling qualities of the augmented twin-fuselage passenger transport airplane exhibited an improvement over the handling characteristics of the reference (single-fuselage) transport.


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    Titel :

    Ground-Based and in-Flight Simulator Studies of Flight Characteristics of a Twin-Fuselage Passenger Transport Airplane during Approach and Landing


    Beteiligte:
    W. D. Grantham (Autor:in) / P. M. Smith (Autor:in) / W. R. Neely (Autor:in) / P. L. Deal (Autor:in) / K. R. Yenni (Autor:in)

    Erscheinungsdatum :

    1985


    Format / Umfang :

    55 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch