Year: 2026 Language: English Author: Witherbys Genre: Practical guide Publisher: Witherbys Edition: 3 ISBN: 978-1-918144-23-9 Format: PDF Quality: eBook Pages count: 116 Description: This publication aims to enhance understanding of the principal Electronic Chart Display and Information Systems (ECDIS) safety settings and provides guidance to support their correct application by the ECDIS operator. It explains underkeel clearance (UKC) and how this should be calculated and managed by the ECDIS operator. The information provided is not a substitute for correct adherence to company safety management system (SMS) requirements or the manufacturer's own operational manuals. It should be used in conjunction with recognised type-approved training and onboard best practices. ECDIS safety settings must be configured correctly to ensure sufficient UKC, accurate interpretation of electronic navigational charts (ENCs) and proper identification of charted objects as navigational dangers or hazards. Incorrect set-up of ECDIS safety settings has led to numerous shipping incidents over the years. The essential ECDIS safety settings that the ECDIS operator must understand include:
Display settings
Safety Contour
Safety Depth
Shallow Contour
Deep Contour
Isolated Dangers (symbols and attributes)
detection area/safety frame
route check/cross track distance (XTO)
Safety settings, in particular the Safety Depth and the Safety Contour input values, must be calculated correctly at the passage planning stage. Prior to sailing, the ECDIS operator must ensure that settings are entered and remain appropriate for the duration of the voyage. If a change of settings is required during the voyage, the passage plan must be reassessed with the new values to ensure the route remains safe. Correct safety settings are essential for safe navigation. While underway, it is important to ensure that the ECDIS safety settings are verified as correct during every watch. On systems where there are different ECDIS operator profiles, care must be taken to ensure the settings match between profiles, particularly those relating to UKC. When configured correctly, the ECDIS will alarm when the ship approaches shallow waters, crosses the Safety Contour or approaches other hazards to navigation. It is important to be aware that the principal method for distinguishing safe from unsafe water is the use of user-defined 'no-go' areas, applied via the 'danger attribute' function. When navigating within the Safety Contour, the ECDIS operator must ensure that Isolated Dangers are displayed.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum
ECDIS Safety Settings and UKC Management
Language: English
Author: Witherbys
Genre: Practical guide
Publisher: Witherbys
Edition: 3
ISBN: 978-1-918144-23-9
Format: PDF
Quality: eBook
Pages count: 116
Description: This publication aims to enhance understanding of the principal Electronic Chart Display and Information Systems (ECDIS) safety settings and provides guidance to support their correct application by the ECDIS operator. It explains underkeel clearance (UKC) and how this should be calculated and managed by the ECDIS operator.
The information provided is not a substitute for correct adherence to company safety management system (SMS) requirements or the manufacturer's own operational manuals. It should be used in conjunction with recognised type-approved training and onboard best practices.
ECDIS safety settings must be configured correctly to ensure sufficient UKC, accurate interpretation of electronic navigational charts (ENCs) and proper identification of charted objects as navigational dangers or hazards. Incorrect set-up of ECDIS safety settings has led to numerous shipping incidents over the years.
The essential ECDIS safety settings that the ECDIS operator must understand include:
- Display settings
- Safety Contour
- Safety Depth
- Shallow Contour
- Deep Contour
- Isolated Dangers (symbols and attributes)
- detection area/safety frame
- route check/cross track distance (XTO)
Safety settings, in particular the Safety Depth and the Safety Contour input values, must be calculated correctly at the passage planning stage. Prior to sailing, the ECDIS operator must ensure that settings are entered and remain appropriate for the duration of the voyage. If a change of settings is required during the voyage, the passage plan must be reassessed with the new values to ensure the route remains safe.Correct safety settings are essential for safe navigation. While underway, it is important to ensure that the ECDIS safety settings are verified as correct during every watch. On systems where there are different ECDIS operator profiles, care must be taken to ensure the settings match between profiles, particularly those relating to UKC.
When configured correctly, the ECDIS will alarm when the ship approaches shallow waters, crosses the Safety Contour or approaches other hazards to navigation. It is important to be aware that the principal method for distinguishing safe from unsafe water is the use of user-defined 'no-go' areas, applied via the 'danger attribute' function. When navigating within the Safety Contour, the ECDIS operator must ensure that Isolated Dangers are displayed.
Contents
Screenshots
Hidden
FILE WAS DELETED BY COPYRIGHT HOLDERS
You can buy it on https://www.witherbyseamanship.com
Share