What can be expected to occur with the values of GZ at the angle of deck edge immersion?

The value of GZ, which represents the righting arm of a vessel, can be influenced by various factors as the vessel leans to one side. When examining the angle of deck edge immersion, it's important to understand that this is the point at which the deck edge begins to submerge in water. The righting arm, GZ, depends on the angle of heel of the vessel and the corresponding metacentric height.

At the point of deck edge immersion, the righting arm may not follow a predictable pattern due to the complexity of buoyancy, stability, and the shifting center of gravity as the vessel heels. The engagement of water with the deck edge alters the dynamics of forces acting on the vessel. In this scenario, predicting the exact behavior of GZ becomes complicated, as it can vary based on the vessel's design, loading conditions, and the specific angle of heel at which the immersion occurs.

This inherent variability leads to the conclusion that even though principles of stability provide frameworks for understanding stability up to certain angles, the precise behavior of GZ at the angle of deck edge immersion cannot be definitively determined without additional specific data about the vessel in question. Therefore, the correct choice reflects this uncertainty in predicting the behavior of GZ under