Navigation 8 - ECDIS
Navigation 8 - ECDIS
Navigation 8 - ECDIS
Version : 2
ECDIS Date : 20/Jul/2018
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NAVIGATION PROCEDURES Doc No : OPSN 008
Version : 2
ECDIS Date : 20/Jul/2018
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NAVIGATION PROCEDURES Doc No : OPSN 008
Version : 2
ECDIS Date : 20/Jul/2018
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NAVIGATION PROCEDURES Doc No : OPSN 008
Version : 2
ECDIS Date : 20/Jul/2018
8.1. General
ECDIS is a navigational aid and does not relieve the Masters or OOWs of any of their
responsibilities for conducting safe navigation.
ECDIS is a computer based navigation system that complies with IMO regulations.
Subject to compliance with requirements, it can be used as an alternative to paper
charts.
It integrates a variety of real-time information.
It is an automated decision aid, capable of continuously determining the vessel’s
position in relation to land, charted objects, navigation hazards and unseen hazards.
ECDIS provides a number of functions and features to make navigation safe and
efficient. It has the capability to make navigation easier and reduce the burden on the
ship’s officers.
There is however a potential for errors to creep in, which are likely to be of a different
nature compared to paper charts. This includes the tendency to put too much trust on
the display without fully understanding the scope and limitations of the functions.
Training in the use and operation of ECDIS is both essential and mandatory. An
untrained operator can induce errors into the system which, if left undetected, can lead
to disastrous consequences.
Guidance:
1. Glossary of terms used with ECDIS (Received)
References:
1. IMO Resolution A.817 - Performance Standards for Electronic Chart Display and
Information systems (ECDIS)
2. IMO Resolution MSC. 232 (82) - Adoption of the revised Performance Standards for
ECDIS
3. MSC.1/Circ 1503 – ECDIS – Guidance for Good Practice
4. NP 5012 - Admiralty Guide for Symbols Use on ECDIS, 02Ed2015
5. NP 231- Admiralty Guide to the Practical Use of ENCs, 02Ed2016
6. NP 232- Admiralty Guide to ECDIS Implementation, Policy and Procedures, 02Ed2016
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NAVIGATION PROCEDURES Doc No : OPSN 008
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Guidance:
1. ECDIS - Requirements for paper charts
2. Company’s Generic Risk Assessment When Using ECDIS as Primary Means of
Navigation
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NAVIGATION PROCEDURES Doc No : OPSN 008
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In all cases, the Bridge Checklist No.15 - Familiarisation with ECDIS Equipment must be
used and completed in order to demonstrate the correct familiarisation and operation of
the ECDIS equipment.
All Masters and officers using ECDIS must be aware of the limitations of the equipment. In
particular, the use of ECDIS must not be to the detriment of maintaining a safe-lookout and
other methods of safe navigation.
Guidance:
1. Limitations of ECDIS equipment
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NAVIGATION PROCEDURES Doc No : OPSN 008
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Guidance:
1. Installing new ENCs and updating existing ENCs
2. Automatic updating of ENCs
3. Admiralty Information Overlay (AIO)
4. Manual updating
5. Data transfer
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Guidance:
1. ECDIS - Caution using T&P notices
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“Bridge Checklist No.17 - Passage Planning with ECDIS Equipment - (Execution and
Monitoring)” is to be used for execution and monitoring of the passage plan when using
ECDIS
Route monitoring shall be done on both ECDIS units (for vessels fitted with Back-up
ECDIS).
Over reliance on the automatic route monitoring should not be exercised during real
time navigation and basic watch keeping practices and procedures must be complied
with.
No route to be changed over to “Monitoring Mode” unless checked, validated and
manually verified by the Master.
In order to monitor limiting danger lines/ Markings on the ENCs these should be
additionally activated for the purpose of alarms/alerts during route monitoring. Failure to
do this will not trigger alarm if vessel is running into areas / lines marked that requires
OOW’s attention.
Guidance:
1. Settings for Route Monitoring
2. ECDIS - Route Monitoring - Safety Contours - Limiting Danger Line
3. Voyage Recording/ Playback
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It is therefore important that the user knows the ZOC for the area covered for the voyage as
it clearly affects the voyage planning and voyage monitoring. Hence the officer when
planning a passage needs to have the ZOC layer switched to “ON”.
CATZOC tables to be referred for different zone accuracies, survey characteristics and
symbols used.
Master would review risk assessment and discuss with pilot during Master- Pilot information
exchange and carry out the transit.
Click here to view Under Keel Clearance Section for detailed information.
Guidance:
1. CATZOC Table
2. Company’s UKC Policy - Minimum UKC Requirements
3. Procedure for calculating UKC
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Any vessel having ECDIS failure must inform the office to obtain an exemption from the
Flag State, the Port State to be duly notified. Vessel to comply with requirements as per the
Flag State and Port State in addition to the relevant checklists and control measures
identified in the risk assessment
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References:
1. ICS Bridge Procedures Guide – Section 4.1.4
2. Checking the IHO S-52 Presentation Library Edition Number in the ECDIS
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