The handling qualities of the X-24A were determined through a combination of qualitative pilot comments, numerical pilot ratings, and direct and indirect analyses of recorded flight test data. A fixed base six-degree-of-freedom simulator was used extensively to evaluate predicted handling characteristics and to establish trends which were confirmed in flight. The handling characteristics of the X-24A during an approach and landing in still air were excellent. The transonic handling qualities were adequate for a research mission, but precise control was extremely difficult due to an inherent lateral pilot-induced-oscillation tendency and continual small disturbances in the longitudinal and lateral axes. At supersonic speeds the handling qualities were excellent. The rocket engine exhaust plume influenced the handling qualities by producing a longitudinal trim change at transonic conditions and a reduction in directional stability at supersonic conditions. A limited amount of quantitative handling qualities data from X-24A tests were compared with criteria from a proposed specification for lifting reentry vehicles. In most cases the X-24A met the proposed specification. Several of the test maneuvers in the specification were impractical for a vehicle of this type. Some handling qualities deficiencies which were uncovered during the test program were not identifiable by application of the proposed specification.


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    Assessment of Lifting Body Vehicle Handling Qualities

    John A Manke / John P Retelle / Robert W Kempel | NTRS | 1970


    Assessment of lifting body vehicle handling qualities

    Kempel, R. W. / Manke, J. A. / Retelle, J. P. | NTRS | 1971



    MV-22 Handling Qualities Flight Test Summary

    Klein, G. D. / Roberts, B. / Seymour, C. et al. | British Library Conference Proceedings | 2000