This paper presents a summary of an analysis of flow field characteristics about a large scale twin-tilt-nacelle V/STOL aircraft in close proximity to the ground. The analysis uses experimental data in the form of measurements of pressure distributions on the ground beneath the aircraft and on the undersurface of the aircraft's fuselage. The integrals of these distributions are compared with forces measured directly, for both the total model and isolated nacelles, (i.e., net thrust). The handling qualities of the vehicle were found to be influenced by flow field characteristic features, not present in simpler models. Lift increases and significant degradation in roll control occur at low heights for fuselage strake deflections of 30 degrees or more. Reductions in control effectiveness about the other axes were also observed.


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    Titel :

    Full-scale ground effects of twin impinging jets beneath a subsonic tactical V/STOL aircraft


    Beteiligte:

    Erscheinungsdatum :

    01.10.1986


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Full-scale ground effects of twin impinging jets beneath a subsonic tactical V/STOL aircraft

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    Second-Moment Modelling of Subsonic and Transonic Impinging Twin Jets

    Ince, N. Z. / Page, G. / Leschziner, M. A. et al. | British Library Conference Proceedings | 1993


    JET V/STOL TACTICAL AIRCRAFT

    Alford, W. J., Jr. / Kuhn, R. E. / Reeder, J. P. | NTRS | 1963


    Jet V/STOL tactical aircraft

    Kuhn, R.E. / Reeder, J.P. / Alford, Jr., W.J. | Engineering Index Backfile | 1963