The SS AMERICAN MARINER is loaded with the...

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Question 1 of 2066636eec28f7522a1c51cbc8

The SS AMERICAN MARINER is loaded with the cargo shown in table ST-0001 below. Use the white pages of The Stability Data Reference Book to determine the amount of liquid loading required in the double bottom tanks to meet a one compartment standard.

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Question 1 of 20

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🔍 Key Concepts

• Use the white pages – SS AMERICAN MARINER section that covers one‑compartment damage stability (not the trim or intact stability pages). • Convert the cargo table into a total deadweight and vertical center of gravity (KG) for this condition, using the given vertical moments in the white pages for each layer (deck, tween decks, hold). • Compare your actual KG with the maximum allowable KG for one‑compartment standard at the corresponding displacement, then see how adding double‑bottom ballast changes both displacement and KG.

💭 Think About

• Which specific loading condition in the AMERICAN MARINER white pages matches "deck cargo, upper tween deck layer, lower tween deck layer, hold layer" and the weights given in the problem? • Once you have the ship’s initial displacement and KG from that condition, do you meet the one‑compartment standard curve? If not, do you need to lower KG (by adding low‑down ballast) or raise it? • As you add liquid to the double bottoms, how do both displacement and KG change on the one‑compartment standard graph, and at what ballast amount does the ship just meet (but not exceed) the allowable KG curve?

✅ Before You Answer

• Make sure you are on the correct damage stability/one‑compartment standard curve for the AMERICAN MARINER (not the two‑compartment or intact GM curve). • Verify you are using the proper vertical moments (w × z) for each cargo layer from the book, then recompute total KG after adding each trial amount of double‑bottom liquid. • Confirm that the chosen ballast amount corresponds to a point where actual KG is just below or equal to the allowable KG at that new displacement.

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