What is defined as "capsizing" in naval architecture terms?

In naval architecture, "capsizing" refers to the event when a vessel exceeds its angle of vanishing stability. This angle represents the critical point at which a vessel's ability to right itself becomes compromised, resulting in a loss of stability. When a vessel tilts beyond this angle, it can no longer return to an upright position because the center of gravity shifts and the buoyant forces are no longer sufficient to counteract the tipping.

It's essential to understand that capsizing is a critical safety concern for any aquatic vessel, and it is influenced by various factors such as weight distribution, vessel design, and external environmental forces like waves and wind. Recognizing the angle of vanishing stability is crucial for preventing accidents and ensuring the safety of the vessel and its crew.