Your vessel's drafts are: FWD 24'-06", AFT...

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Question 1 of 2066636eec28f7522a1c51d148

Your vessel's drafts are: FWD 24'-06", AFT 25'-08"; and the KG is 22.9 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 50? inclination if the center of gravity is 0.5 foot off center.

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Question 1 of 20

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🔍 Key Concepts

• Stability curves (GZ curves) in the blue pages of the Stability Data Reference Book and how to read them • Effect of a transverse shift of G (center of gravity off centerline) on the righting arm at a given heel angle • Using the vessel’s KG and draft condition to select the proper curve before making any corrections

💭 Think About

• First, decide which displacement/draft and KG condition applies, then locate the 50° heel angle on the correct GZ curve. What approximate GZ value do you read before any off‑center G correction? • Think about how a 0.5-foot off‑center G affects the righting arm at 50°. Does it increase or decrease the GZ, and is the effect proportional to the sine or cosine of the heel angle? • After adjusting the basic GZ from the curve for the off‑center G, which of the options is closest to your corrected value?

✅ Before You Answer

• Make sure you are using the correct displacement/draft curve in the blue pages that matches FWD and AFT drafts given • Confirm you are applying the transverse G correction with the proper trigonometric function (check whether it is based on ( G G_1 \sin \theta ) or ( G G_1 \cos \theta )) • Recheck units: the GZ from the curve and the correction for off-center G should both be in feet, then combine them algebraically (add or subtract) before comparing to the answer choices

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