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    Single pilot IFR program overview and status

    Shaughnessy, J. D. | NTRS | 1983

    Helicopter sling load accident/incident survey: 1968 - 1974

    Shaughnessy, J. D. / Pardue, M. D. | NTRS | 1977

    Helicopter sling loads

    Shaughnessy, J. D. / Yenni, K. R. / Deaux, T. N. | NTRS | 1980