ECDIS Passage Planning and Watchkeeping, 2018 Edition

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Published Date

May 2018

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ECDIS Passage Planning and Watchkeeping, 2018 Edition

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Fully revised and updated to provide practical guidance on passage planning and conducting the navigational watch using ECDIS.

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ECDIS can contribute significantly to navigational safety and efficiency, however, this depends as much on the capability of the ECDIS operator. This publication shows how to produce a safe passage plan and safely use ECDIS when conducting a navigational watch.


This edition has been updated to reflect the latest IHO S52 Presentation Library 4.0 which came in to effect in Sep 2017 with advice on the significant operational impact of PL 4.0.


2018, sees the final tranche of vessels that are required to be fitted with ECDIS and completes a 6 year implementation period to move the worlds merchant fleet to ECDIS. This update fully recognises that ECDIS is the primary source of navigation onboard and brings together experience from ship's officers' and Masters in how ECDIS is most effectively used onboard.

ECDIS Passage Planning and Watchkeeping


ECDIS Requirements

Effective Planning on ECDIS

The Four Stages of Planning

1 Appraisal/Information Gathering


1.1 Appraisal Research

1.1.1 Destination

1.1.2 Climate

1.1.3 ENC Management

1.1.4 Other Considerations

2 Configuration of ECDIS Settings

2.1 Configuration of ECDIS Sensors

2.1.1 Antenna, Offsets and Ship Data

2.1.2 Checks and Settings

2.2 Understanding Safety Settings

2.2.1 Safety Depth and Safety Contour

2.2.2 Detection Area

2.2.3 Navigational Hazards

2.2.4 Isolated Dangers

2.2.5 Areas for which Special Conditions Exist

2.3 Display Parameters

2.3.1 Checks to Software and Chart Subscriptions in the Event of a Delayed Departure

2.3.2 System Units

2.3.3 ENC Loading Options

2.3.4 Display Category

2.3.5 Palette

2.4 Vessel Display Parameters

2.5 Route Display Parameters

2.5.1 Route Alarms

2.5.2 Other Display Options

3 Planning the Voyage


3.1 Display Configuration

3.2 Route Creation

3.2.1 New Route

3.2.2 Adding Waypoints

3.2.3 Adjusting Waypoints

3.2.4 Multiple Route Options

3.2.5 Route Table

3.3 Supplementary Information

3.4 Manual Updates

3.5 Route Check

3.5.1 Configuration

3.5.2 Conducting the Route Check

3.5.3 Visual Check

3.6 Detailed Briefing

4 Execution (Executing the final voyage plan)

4.1 Route Data

4.2 Pick Report

4.3 Chart Legend

4.4 Environmental Data

4.5 Mariner-added Objects

4.6 Symbols

4.7 Raster Chart Display System (RCDS) Mode

4.8 Course Alterations

5 Monitoring (progress along the pre-planned track)

5.1 ECDIS Handover

5.2 Position Monitoring

5.2.1 Cross-Checking Frequency

5.3 Managing the ETA

5.4 Radar and AIS Overlay

5.4.1 Radar Information

5.4.2 RIO and ENC Alignment

5.4.3 AIS Information

5.4.4 AIS Aids to Navigation

5.5 Anchor Watch Monitoring

5.5.1 Effective Planning

5.6 Deviation

5.7 ECDIS Additional Functionality

5.7.1 SAR Patterns SAR Route Planning

5.7.2 Man Over Board (MOB)

5.8 Logbook

5.9 Sensor Failure

5.9.1 Gyro and Log Failure

5.9.2 GNSS Failure

5.10 ECDIS Failure

5.11 Monitoring Considerations

6 Effective Management of ECDIS

6.1 Use of ECDIS

6.2 Planning Errors

6.2.1 Unofficial Chart Data

6.2.2 Chart Installation

6.2.3 RCDS Mode

6.2.4 ENC Updates

6.2.5 Chart Subscription Expiry

6.2.6 Safety Contour

6.2.7 Isolated Dangers

6.2.8 Datums

6.2.9 Automatic Route Check

6.3 Execution and Monitoring Errors

6.3.1 Configuration Errors

6.4 Misinterpretation of Data

6.4.1 Chart Symbols

6.4.2 Pick Reports

6.5 Planning while Monitoring on ECDIS

6.6 Cross-Checking the GNSS Position

6.7 Indication of Sensor Failure

6.8 GNSS Failure

6.9 ECDIS Voyage Recording

6.10 ECDIS Failure

6.10.1 Software and Hardware Failure

6.10.2 Cyber Security

6.11 Checking Performance

7 Hydrography

7.1 ENC Characteristics

7.1.1 Differences in ENC Quality

7.1.2 CATZOCs

7.1.3 Accuracy

7.1.4 Horizontal Datum

7.1.5 AIO and Temporary and Preliminary Notices to Mariners (T&P NMs)

7.2 ENC Coverage

7.3 ECDIS Mindset and Avoiding Over-Reliance

7.4 Overlapping Data

7.4.1 ENC scaling and display

7.4.2 Zoom, Scale and SCAMIN

7.4.3 Gaps in Data

7.4.4 ENC Text

7.4.5 National Language


Annex A ECDIS Pre-sailing Configuration Checklists

Annex B Detection of Areas for which Special Conditions Exist

Annex C Additional Areas

Annex D Independent Mariner Selectors

Annex E Abbreviations

Annex F S-63 Error Codes and Explanations

Annex G Objects Associated with the Question Mark Symbol

Annex H MSC.1/Circ.1503/Rev.1, 16 June 2017




Title: ECDIS Passage Planning and Watchkeeping, 2018 Edition
Number of Volumes: 1
Edition: Fourth
Number of Pages: 240
Product Code: WS1565K
ISBN: ISBN 13: 978-1-85609-779-6 (9781856097796), ISBN 10: 1-85609-779-X (185609779X)
Published Date: May 2018
Binding Format: Hardback
Book Height: 282 mm
Book Width: 223 mm
Book Spine: 20 mm
Weight: 1.80 kg

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