ECDIS SAFETY SETTINGS & UKC MANAGEMENT

This publication is a guide to ECDIS safety setting and under keel clearance (UKC) management. This booklet aims to provide a deeper insight into the principal Electronic Chart Display and Information Systems (ECDIS) safety settings and provide guidance to ensure they are understood by the ECDIS operator. It explains how underkeel clearance (UKC) should be calculated and effectively managed by the navigator.

Part One outlines how safety settings can be understood by the ECDIS operator. The essential ECDIS safety settings outlined include display, safety contour and depth, shallow and deep contour, isolated danger, detection area/safety frame and route check/cross track distance (XTD).

Part Two details how UKC should be calculated and effectively managed on board ships. Having a UKC plan allows the safety settings to be readily reviewed at any stage of the voyage.

Part Three includes worked examples to illustrate the limitations of ENCs in relation to safety settings. Each scenario demonstrates the various tidal calculations and their relationship to ECDIS safety settings.