What is the key characteristic of modern large container vessels in relation to parametric rolling?

Modern large container vessels are particularly susceptible to parametric rolling primarily due to their unique hull designs. These vessels typically have a wider beam and a more streamlined shape, which can create advantageous conditions for this phenomenon under certain wave patterns. As the vessel encounters waves with lengths that closely match its own length, the interaction can lead to increased rolling motions that are hazardous.

The design characteristics that make large container ships prone to parametric rolling include their elongated hull shape and the high center of gravity associated with stacked containers. While measures are taken to enhance stability, the fundamental design aspects can lead to exaggerated rolling under specific conditions. Understanding these factors is crucial for safe navigation, especially in rough seas where the risk of parametric rolling is heightened.

This susceptibility necessitates careful consideration in voyage planning and operational practices, highlighting the importance of training and awareness for crew members in managing the risks associated with these large vessels.