Your vessel's drafts are: FWD 21'-04", AFT...

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Question 1 of 2066636eec28f7522a1c51d136

Your vessel's drafts are: FWD 21'-04", AFT 21'-08"; and the KG is 20.6 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the remaining righting arm at 45? inclination if the center of gravity is 1.2 feet off the centerline.

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Question 1 of 20

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🔍 Key Concepts

• How to read the stability (GZ) curves in the blue pages for a given draft condition • Effect of a transverse shift of G (1.2 ft off centerline) on the righting arm at a given angle (45°) • Relationship between righting arm (GZ), original GM, and the horizontal shift of G

💭 Think About

• First, with the given drafts, identify which stability curve (displacement/trim condition) in the blue pages you should be using. What is the GZ at 45° from that curve before any off-center correction? • Think about how moving the center of gravity off the centerline changes the effective righting arm at 45°. Does it increase or decrease GZ, and by how much? • How do you combine the original GZ from the curve with the correction due to the 1.2 ft transverse shift of G to get the remaining righting arm?

✅ Before You Answer

• Verify you are using the correct displacement/trim curve in the blue pages that matches drafts FWD 21'-04" and AFT 21'-08" • Confirm the sign of the correction for the 1.2 ft off-center G at 45° (are you subtracting or adding to the tabulated GZ?) • Check that your final GZ value at 45° is physically reasonable (i.e., less than the original GZ from the curve because of the off-center G, and consistent with the answer choices).

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