In Auto Position mode for DP operations, how much settling time should normally be allowed prior to commencing work?

In Auto Position mode for Dynamic Positioning (DP) operations, allowing a settling time of approximately 30 minutes before commencing work is standard practice. Settling time is crucial because it ensures that the vessel has stabilized in its position following any maneuvering or changes in environment. During this period, the DP system calibrates and ensures that all relevant systems are functioning optimally, and the vessel is capable of maintaining its position accurately.

This duration allows for the stabilization of the vessel's position and the sensors to provide an accurate representation of any drift or movements. If the settling time is not adequately observed, it may lead to operational challenges, such as drifting from the planned position or poor DP system performance, which could compromise safety and efficiency during operations. Hence, the choice of 30 minutes aligns well with industry best practices, taking into consideration the typical dynamics and operational requirements of DP systems.