Advanced shiphandling

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Guidance note: A pull-out trial gives an indication whether the ship is course-stable or not. A spiral trial measures the steady state rate of turn as a function of rudder angle and provides quantitative measures of the course stability. A spiral trial shall be made if the pull-out trial indicates that the ship is unstable.

B 800 Auxiliary manoeuvring device trial. 801 Information about the performance and effect of auxiliary devices installed in order to improve the manoeuvring abilities of the ship shall be provided. Guidance note:Ships which are equipped with auxiliary devices to assist in manoeuvring should carry out trials to establish the performance and limitations of such manoeuvring devices. In the case of ships fitted with more than one auxiliary unit, trials should be made to demonstrate the performance of each single unit and of combinations of units. 802 The ability to turn by means of thrusters shall be determined. 803 The forward speed at which the device ceases to be effective shall be determined. 804 When applicable, the ability to move sideways shall be determined. Depending on the device configuration, the trial shall be made with at least one unit at maximum output and the others adjusted to give practically pure sidling.

B 900 Man-overboard rescue manoeuvre. 901 Information about the performance of an effective man-overboard rescue manoeuvre shall be provided. Guidance note: A Williamson turn should be carried out to port and to starboard in both loaded and ballast conditions. C. Presentation of Manoeuvring Information. C 100 Pilot card. 101 A pilot card shall provide the pilot with information on the current condition of the ship with regard to its loading condition, propulsion and manoeuvring equipment and other relevant equipment. 102 A pilot card form shall be available on the bridge at each port call. Guidance note:An example of information content and layout of a pilot card is given in Appendix 1. (se resolution A601.15)

C 200 Wheelhouse poster. 201 A summary of manoeuvring information on the ship shall be worked out in the format of a wheelhouse poster. Guidance note:An example of information content and layout of a wheelhouse poster is given in Appendix 2. (se resolution A601.15) 202 The wheelhouse poster shall be permanently displayed in the wheelhouse. It shall contain general particulars and detailed information describing the manoeuvring characteristics of the ship, and be of sufficient size to ensure ease of use. 203 The wheelhouse poster shall be marked with a warning that the manoeuvring performance of the ship may differ from that shown on the poster due to environmental, hull and loading conditions.

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