When considering the cross curves of stability, what does the assumed kG include?

In the context of cross curves of stability, the assumed vertical center of gravity (kG) is a crucial factor in determining a vessel's stability characteristics. The assumed kG encompasses a range of values to predict how the vessel will behave under different conditions. This includes average kG values, which are calculated based on typical loading conditions, as well as specific kG values that can be determined through various load scenarios.

When analyzing stability, it is essential to consider not just one specific condition but rather the complete scope of potential kG values that can influence how the vessel reacts to heeling and other stability challenges. This comprehensive approach ensures that the stability assessments provide a robust understanding of how the vessel will perform under various loading conditions and orientations.

A holistic understanding of kG is critical for safe vessel operation and design because it ensures that various scenarios are accounted for, helping to mitigate risks associated with stability.