The investigations described in this report represent a second in a series of investigations planned at CAORF to study the effectiveness of tugs in restricted waterways and the variability in pilot operating procedures. One part of the previous study was concerned with the effectiveness of tugs in assisting an 80,000 DWT and a 250,000 DWT tanker following a complete failure with rudder amidships and a loss of engine power simultaneously, and just before entering a 45 degrees turn. Because such a combined failure is extremely severe and has a low probability of occurring, the present study aimed at more realistic failure conditions on a rudder failure (amidships), or no failure at all could occur at any of the four locations prior to the turn, or four locations in the turn. In addition, the failure could be followed by a recovery in a realistic time period, or no recovery at all. Twelve subjects took part in the experiment; six had tugs available and six had no tugs. They performed a total of 12 runs apiece, and experienced engine and rudder failures with and without recovery and at various locations in an order consistent with the statistical experiment design. The data from the experiment were examined qualitatively and selected performance measures were subjected to statistical analyses. Based on these practically useful observations, conclusions were drawn from both the non-failure and failure runs regarding pilot procedures with helm, engine and tug power in relationship to the type and location of the failure. (Author)


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Tug Usage with Impaired Maneuverability


    Contributors:
    W. McIlroy (author)

    Publication date :

    1983


    Size :

    233 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Safe Set Maneuverability of Impaired Aircraft

    Kwatny, Harry / Allen, Robert | AIAA | 2012


    Safe Set Maneuverability of Impaired Aircraft

    Kwatny, H. / Allen, R. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2012


    Maneuverability

    Tema Archive | 1983


    TRAILER WITH IMPROVED MANEUVERABILITY

    FORSDAHL GUSTAV / KALLIOKORPI MISO | European Patent Office | 2023

    Free access

    AIRCRAFT WITH INCREASED MANEUVERABILITY

    PODGORNOV VLADIMIR AMINOVICH / NAUMENKO MIKHAIL YUREVICH / KIPKAEV ALEKSEJ EVGENEVICH et al. | European Patent Office | 2021

    Free access