OpenLegislation

Division 4.1 Display requirements

United Kingdom

Original text. Later amendments are not shown.

  1. (a)

    The display method shall ensure that the displayed information is clearly visible to more than one observer in the typical conditions of light experienced in the wheelhouse of a vessel by day and night.

  2. (b)

    In navigation mode the display size of the chart presentation shall be at least 270 mm by 270 mm for equipment designed and admitted for the navigation mode.

  3. (c)

    In information mode ergonomic aspects shall determine the size. The information displayed must be readily visible from the conning position.

    The display diagonal shall be equal to or larger than 199 mm (7,85 inches). Under all conditions the boat master must be capable of perceiving the displayed information sufficiently in accordance with Human Machine Interface guidelines.

    If the software is sold without a display, the manufacturer's documentation shall include the information that it may only be used as Inland ECDIS in information mode if the display fulfils the requirements of this Chapter 4.1.

  4. (d)

    The following criteria must be fulfilled in navigation mode as well as in information mode:

    • Alphanumeric data and text shall be presented using a clearly legible non-italic sans-serif font.

    • The font size shall be appropriate for the viewing distance from user positions (i.e. with respect to reading distance and viewing angles) likely to be experienced in the wheelhouse of a vessel.

    • The character height and the size of AIS symbols in millimetres shall not be less than 3,5 times the nominal viewing distance in metres.

    • The minimum size of AIS symbols and the minimum character height of AIS information shall be 3,5 mm.

    • The manufacturer's documentation shall identify the nominal viewing distance for the display equipment.

  5. (e)

    The display requirements shall be complied with, whether in landscape or in portrait format.

  6. (f)

    In information mode for the size of the display it is recommended to use the size as specified for navigation mode. In the event that space for the installation of the display is a problem, the display size might be reduced taking into account the nominal viewing distance for the display.