There is a large range of ECDIS equipment available, from those
that are part of an integrated bridge system, through to small
standalone units that could be more appropriate for retrofit to
vessels that have limited bridge space.
The IMO standards require that vessels must carry a backup to
ECDIS that can take over the chart-based navigation functions in
event of system failure. The fitting of a second ECDIS or the
carriage of paper charts are widely accepted as back-up that will
meet requirements.
Depending on your Flag State, other solutions such as the
carriage of a Chart Radar or other type-approved electronic back-up
may be accepted. You will need to decide whether to fit vessels
with single or dual ECDIS systems. Fitting a dual system will allow
a significant reduction in the paper charts carried (in some cases
down to zero). If using paper charts as a back-up to a single ECDIS
you are likely to require the carriage of a full (or only slightly
reduced) folio.
However you intend to install and operate with ECDIS, you will
need to work closely with the Maritime Authority that your vessels
are registered with to ensure you comply with all the
requirements.
For a list of Flag State back-up requirements, you can also
refer to the Compendium of Flag State ECDIS requirements at www.ukho.gov.uk/2012compliance
Dual or Single ECDIS
• Dual - reduce the requirement for paper charts
• Single - carry and maintain existing paper charts
(Source: 10 Steps to ECDIS Mandation,
UKHO)
