What does the term "length" refer to in maritime context?

In a maritime context, "length" generally refers to "length overall" (LOA), which is the maximum length of a vessel from the foremost point of the bow to the aftermost point of the stern. This measurement is critical for various aspects of maritime operations, including docking, mooring, and determining the vessel's compliance with regulations such as those set by the U.S. Coast Guard.

Length overall is the most comprehensive measurement, encompassing the entire vessel as it sits on the water. It is particularly important because it impacts navigational rules, safety requirements, and vessel classification.

Other choices focus on specific aspects of a vessel's length that do not capture its complete dimensions. For example, the length of the hull refers only to the structural part of the vessel and may not include protruding features like bowsprits or stern extensions. The length of the waterline specifically measures the portion of the hull that is in contact with the water when the vessel is at rest, which can change with loading conditions. The length of the cabin pertains only to the living or working quarters aboard, which is not relevant for overall measurements or regulatory purposes. Thus, length overall is the most accurate term in a maritime context for discussing vessel size.