The SS AMERICAN MARINER has drafts of: FWD...

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Question 1 of 2066636eec28f7522a1c51cb86

The SS AMERICAN MARINER has drafts of: FWD 18'-07", AFT 23'-03". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 92 tons of seawater.

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Question 1 of 20

66636eec28f7522a1c51cb86

The SS AMERICAN MARINER has drafts of: FWD 18'-07", AFT 23'-03". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 92 tons of seawater.

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🔍 Key Concepts

• Using the white pages (hydrostatic data) for SS AMERICAN MARINER to find TPC (tons per centimeter immersion) and MCT 1" (moment to change trim 1 inch) at the starting mean draft • Separating the effect of ballast into change of mean draft (sinkage) and change of trim when weight is added in the forepeak • Distributing the total trim between the forward and aft draft marks based on their distances from the LCF (Longitudinal Center of Flotation)

💭 Think About

• First, figure out how much the mean draft changes when 92 tons of seawater are added. Which table and value in the white pages do you need for that? • Next, determine the trimming moment created by putting 92 tons in the forepeak. How do you get the change in trim (in inches) from the trimming moment and MCT 1"? • Once you know the total trim in inches, how do you split that trim between the forward and aft drafts using the distances between LCF and the draft marks?

✅ Before You Answer

• Be sure you are using data at the correct initial mean draft (based on 18'-07" FWD and 23'-03" AFT) from the white pages • Confirm that you are using seawater data (not freshwater) and the correct units (tons, feet, inches/centimeters) when applying TPC and MCT 1" • After calculating, check that the forward draft increases and the aft draft decreases, and that the change in mean draft plus trim effects are consistent with adding 92 tons forward

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Question 1 of 2066636eec28f7522a1c51cb86

The SS AMERICAN MARINER has drafts of: FWD 18'-07", AFT 23'-03". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 92 tons of seawater.

Back

Question 1 of 20

66636eec28f7522a1c51cb86

The SS AMERICAN MARINER has drafts of: FWD 18'-07", AFT 23'-03". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 92 tons of seawater.

No comments yet

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If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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