What can happen if a vessel has a bearing drift?

If a vessel experiences bearing drift, it means that the observed bearing of a target relative to the vessel is changing due to factors such as tide, current, or an error in the navigation equipment. This shift can lead to a significant risk of collision, as the crew may not accurately assess the vessel's position concerning other nearby boats or navigational hazards. When the bearings are not reliable, it can create confusion about the intended course and interfere with effective decision-making related to safe navigation.

While accurate navigation involves correcting and accounting for such drifts, failing to do so can compromise the safety of not only the drifting vessel but also other vessels in proximity, potentially leading to dangerous situations on the water. Therefore, recognizing and addressing bearing drift is critical to prevent collision risks. Understanding this concept is essential for any Deck Watch Officer tasked with maintaining situational awareness and ensuring safe operations at sea.