"O Class" refers to a classification of ships designed for specific purposes, particularly in the context of naval operations. These vessels are typically equipped with advanced technology and capabilities to perform various missions, including surveillance, reconnaissance, and support for other naval forces. In many navies, the "O Class" designation may also relate to a series of operational guidelines or standards that ensure the effectiveness and safety of maritime activities. This classification helps streamline training and resource allocation, allowing for better coordination among different types of naval assets, such as submarines, destroyers, and aircraft carriers.