You are scheduled to load 4700 tons of cargo, 45 tons of crew effects and stores and 323 tons of fuel. Use the blue pages of the Stability Data Reference Book to determine the vessel's mean draft in salt water.
• Deadweight (DWT) and how it relates to cargo, fuel, stores, and crew effects • Using the Deadweight Scale / Displacement vs. Draft curves in the blue pages of the Stability Data Reference Book • Converting between total load added and resulting mean draft in salt water
• What is the total weight you are adding to the vessel, combining cargo, fuel, crew effects, and stores? • On the deadweight or displacement–draft curve in the blue pages, what draft corresponds to this total load in salt water conditions? • If the exact weight is between two scale markings, how should you interpolate to estimate the mean draft?
• Be sure you are using the salt water scale, not fresh or dock water, if more than one scale is shown. • Double-check that all weights are in the same units (long tons vs. metric tons) as used in the Stability Data Reference Book. • Confirm you are reading the mean draft (not forward or aft draft individually) from the correct axis on the curve.
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