What is the definition of deadweight when referring to a vessel?

Deadweight refers to the total weight a vessel can safely carry, including cargo, fuel, crew, and provisions, without affecting its structural integrity or safety. It represents the maximum load the ship can handle and is a crucial measure in maritime operations and economic forecasting.

The correct answer is found in understanding the comprehensive nature of deadweight. It encompasses not just the cargo but all components contributing to the vessel's load while it remains afloat. Therefore, the term refers to the maximum submersion capacity influenced by weight, making it distinct from other measures such as the weight of the vessel itself or displacement.

Other provided choices do not accurately capture this definition. The total weight of cargo transported refers specifically to just one component of the vessel's cargo but does not consider crew and other weights. The weight of the vessel when floating freely is a different concept, reflecting the vessel's own weight in the water without the added loads. Displacement without any cargo highlights the vessel's volume capability and is also a separate measurement from deadweight. Overall, deadweight is a holistic measure that reflects the ship's total carrying capacity safely at sea.