Your vessel's drafts are: FWD 27'-06", AFT...

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Question 1 of 2066636eec28f7522a1c51d14f

Your vessel's drafts are: FWD 27'-06", AFT 28'-02"; and the KG is 23.1 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 37° inclination if the center of gravity is 1.8 feet off center.

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Question 1 of 20

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🔍 Key Concepts

• Cross curves of stability (blue pages) and how to adjust GZ for an off-center KG • Effect of KG height and transverse shift on righting arm at a given heel angle • How to interpolate between tabulated angles on the stability curves

💭 Think About

• First, with drafts given, which displacement and KMt curve in the blue pages should you be using? • Once you obtain the base GZ at 37° from the curves (for the given KG on centerline), how does a transverse shift of G by 1.8 ft change the effective righting arm at that angle? • Is the transverse shift of G more important at small angles, large angles, or all angles, and how does that affect which answer choices are reasonable?

✅ Before You Answer

• Be sure you are using the correct displacement and trim condition that matches the given drafts. • Confirm whether the 1.8 ft off-center is a horizontal (transverse) shift of G, not a vertical change in KG. • Check that the final GZ you get from the curves and corrections is in feet, not meters, and that the magnitude is reasonable for a merchant vessel at 37° heel.

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