Implement a high-alert condition. The Master should be on the bridge during critical legs, accompanied by a dedicated helmsman, a co-navigator, and an alert lookout.
Use PI lines on the radar to monitor cross-track error constantly.
The narrowest part of the Singapore Strait (approx. 1.3 nautical miles wide) with a sharp turn.
The sheer volume of Automatic Identification System (AIS) targets can clutter ECDIS and radar screens. Filter out low-threat targets but remain alert to small wooden vessels (barters/bumboats) that may not emit AIS signals. 4. Key Environmental and Navigational Hazards Squalls and Sumatras passage planning guide malacca and singapore straits pdf
Before charting the course, the navigation officer must gather up-to-date nautical charts and publications. Digital or PDF versions should be cross-referenced with the latest Notices to Mariners (NTM). Required Documents 1353, 1358, 2403, 2404, 3831, 3947. Sailing Directions: Admiralty Sailing Directions (NP44). List of Lights: ADLL Volume F.
The SOMS features an extensive, IMO-adopted Traffic Separation Scheme.
, which can impact steering and positioning in narrow channels. Visibility : Be prepared for reduced visibility due to the regional or sudden tropical squalls (Sumatras). Witherby Publishing Group Passage Planning Checklist Implement a high-alert condition
Navigating the Straits of Malacca and Singapore (SOMS) requires meticulous preparation due to high traffic density, complex routing, and changing environmental conditions. This guide provides a detailed framework for mariners preparing a comprehensive passage plan. 1. Executive Summary & Critical Transit Data
Given the shallow depths, the PPG provides mandatory UKC calculations:
Certain areas may have speed recommendations (e.g., 12 knots) to ensure safe handling in congested lanes. The narrowest part of the Singapore Strait (approx
For a complete operational workflow on the bridge, mariners rely on detailed print and digital handbooks. What to Look for in a Comprehensive Guide A practical, downloadable handbook generally includes:
Wider but features moving sandbanks and shifting depths.