The maximum draft of the SS AMERICAN MARINER...

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Question 1 of 2066636eec28f7522a1c51c6d6

The maximum draft of the SS AMERICAN MARINER cannot exceed 28'-08" in order to cross a bar. The present drafts are: FWD 28'-00", AFT 29'-00". Use the white pages of the Stability Data Reference Book to determine the minimum amount of sea water to ballast the forepeak to achieve this condition.

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Question 1 of 20

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🔍 Key Concepts

• Trim and mean draft relationship when adding weight forward • How adding weight in the forepeak affects forward and aft drafts • Using the Stability Data Reference Book (white pages) to find trimming moments and TPC/MT1"

💭 Think About

• What happens to the forward and aft drafts when you add ballast all the way forward? Does the ship pivot about a point or change evenly? • Which table in the white pages helps you convert a required change in trim into a required trimming moment? • Once you know the trimming moment needed, how do you use the lever (distance of forepeak from LCF/LCB) to find the weight to add?

✅ Before You Answer

• Carefully compute the required change in aft draft to meet the bar restriction while keeping the forward draft within limits • Use the correct MT1" (moment to change trim 1 inch) for the ship at the given displacement from the white pages, not a generic value • Be sure you are using the correct longitudinal lever for the forepeak tank from the reference book (distance from LCF or LBP, as specified)

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