What may influence the accuracy of stability calculations on a vessel?

The accuracy of stability calculations on a vessel can be significantly influenced by differences between theoretical and practical hull designs. Stability calculations often rely on models and assumptions based on ideal conditions and shapes derived from theoretical designs. However, in practice, the actual shape of the hull may differ due to rounding during construction, alterations made for repairs, or modifications for specific purposes, such as additional equipment or cargo configurations. These physical differences can impact the center of gravity, the center of buoyancy, and the overall stability of the vessel, resulting in deviations from the predicted stability performance based on theoretical calculations.

While current weather conditions, the crew's experience, and the color of the vessel may also play roles in broader operational safety and handling characteristics, they do not directly alter the fundamental stability calculations which are primarily rooted in the physical attributes of the vessel's design and configuration.