The SS AMERICAN MARINER has on board 6048...

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Question 1 of 2066636eec28f7522a1c51cb7a

The SS AMERICAN MARINER has on board 6048 tons of cargo with an LCG-FP of 270.71 feet. See table ST-0193 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

• Using LCG (Longitudinal Center of Gravity) tables in the white pages for each hold/deck position (e.g., No. 1 Third Deck, No. 2 Second Deck, etc.) • Calculating moments: weight × LCG-FP for both the existing cargo and the new cargo to be loaded • Finding the combined (final) LCG-FP by dividing total longitudinal moment by total cargo weight

💭 Think About

• How will adding the new weights at their respective LCGs shift the overall LCG from the original 270.71 feet? Think about whether most of the added weight is forward or aft of the original LCG. • Once you’ve found the LCG-FP for each stowage location from the tables, what is the step‑by‑step sequence: sum of weights, sum of moments, then which formula gives the final LCG-FP? • Before doing detailed math, can you make a rough estimate: should the final LCG-FP move forward or aft compared to 270.71 feet, based on where the bulk of the new weight is located?

✅ Before You Answer

• From the white pages, verify the correct LCG-FP for each specific compartment and deck (e.g., "No. 5 Tank Top" is not the same as "No. 5 Second Deck"). • Verify the total added cargo weight from the list and add it to the original 6048 tons to get the final total cargo weight before dividing moments. • Double‑check the final LCG calculation: ( \text{Final LCG-FP} = \frac{\text{Original cargo moment} + \text{New cargo moments}}{\text{Original cargo weight} + \text{New cargo weight}} ).

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