Added Breadth in navigation is set to which measurement?

Added breadth in navigation refers to an additional measurement that accounts for the overall width of a vessel, specifically its beam. In nautical terms, the beam is the widest part of the ship, and it is a crucial factor in determining stability, maneuverability, and the vessel's ability to fit into certain channels or ports.

When navigational charts and guides discuss added breadth, they often take into consideration the beam to ensure that there is appropriate clearance when navigating through narrow waterways or when calculating the turning radius of the vessel. Understanding the ship's beam allows navigators to make informed decisions on the ship's capacity to navigate through various environments safely.

In contrast, the ship's length refers to the overall length from bow to stern and does not factor into added breadth. The height refers to the vertical distance from the keel to the highest point of the vessel, which is unrelated to lateral dimensions. The draft is the vertical distance between the waterline and the bottom of the hull (keel), relating to how much of the vessel is submerged but not to its width. Therefore, the correct focus on the beam as the basis for added breadth aligns with its relevance in navigation decisions.