You have 400 tons of below deck tonnage and 100 tons of above deck cargo on board. You must load 160 tons of liquid mud below deck. How much more deck cargo can you load? See illustration D036DG below.
• Use the loading diagram D036DG to relate below deck tonnage to allowable above deck cargo • Remember that liquid mud below deck adds to total below deck tonnage and may move your point into a different zone • Follow the graph procedure: vertical line from below-deck tons, horizontal line from above-deck tons, compare with the curve between SAFE and UNSAFE loading
• After adding the 160 tons of liquid mud, what is your new total below deck tonnage and where does that fall on the x‑axis of the diagram? • Starting from your present above deck cargo, how far can you move horizontally (increase deck cargo) before your point touches the limiting curve on the graph? • Does operating in Zone I vs outside Zone I change any ballast requirement that might affect how much deck cargo you can safely carry?
• Recalculate total below deck tons: original below deck plus the new liquid mud • Use the diagram scale carefully to read the maximum allowed above deck cargo for that below deck value • Confirm whether any special notes on the diagram (such as forepeak ballast requirements) apply at your final loading condition
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