The SS AMERICAN MARINER has on board 6080...

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Question 1 of 2066636eec28f7522a1c51cb7c

The SS AMERICAN MARINER has on board 6080 tons of cargo with an LCG-FP of 270.71 feet. See table ST-0111 below for the distribution of the cargo to be loaded. Use the white pages of The Stability Data Reference Book to determine the final LCG-FP of the cargo.

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Question 1 of 20

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🔍 Key Concepts

• Use the white pages of the Stability Data Reference Book to find the LCG from FP for each space listed (No. 1 Second Deck, No. 1 Third Deck, etc.). • Remember the moment formula: Moment = Weight × LCG, and the combined LCG formula using total moments and total weight. • Treat the 6080 tons already on board (LCG-FP 270.71 ft) as one weight with its own moment, then combine it with the cargo distribution in table ST-0111.

💭 Think About

• How do you combine the existing 6080 tons at 270.71 ft with the new cargo weights from ST-0111 to get a single final LCG? • Looking at the LCGs of the spaces you are loading from the white pages, is most of the new cargo going forward or aft of the current cargo LCG, and in which direction should that shift the final LCG from 270.71 ft? • After summing all new cargo weights, what is the total moment for just the new cargo, and how do you blend that with the original moment from the 6080 tons?

✅ Before You Answer

• Verify you used the correct LCG-FP for each compartment from the white pages (check the column heading and that you’re not using TCG or VCG). • Double-check the total weight of added cargo equals the sum of the numbers in table ST-0111 before combining with 6080 tons. • Confirm you use the combined LCG formula: (LCG_{final} = \frac{\Sigma (w_i \times LCG_i)}{\Sigma w_i}), where one of the weights is the original 6080 tons at 270.71 ft.

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