Your vessel's drafts are: FWD 21'-09", AFT...

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Question 1 of 2066636eec28f7522a1c51d139

Your vessel's drafts are: FWD 21'-09", AFT 23'-03"; and the KG is 20.0 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the angle of list if the center of gravity is shifted 1.9 feet off the centerline.

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Question 1 of 20

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🔍 Key Concepts

• Use of the blue pages stability curves in the Stability Data Reference Book for a given displacement and KG • Relationship between GZ (righting arm), list angle, and a known horizontal shift of G • How to convert a transverse shift of G into a heeling arm (GG₁) and compare it with the curve

💭 Think About

• For the vessel’s given drafts, what is the corresponding displacement and KG curve you should be using in the blue pages? • Once you know KG and the 1.9 ft transverse shift, how do you find the heeling arm and then locate the angle where the heeling arm equals the righting arm (GZ)? • When you look along the stability curve for KG = 20 ft, at what angle does the plotted GZ most closely match the heeling arm caused by shifting G by 1.9 ft?

✅ Before You Answer

• Make sure you are using the correct displacement page that matches the given drafts (FWD and AFT). • Verify that you are reading from the KG = 20.0 ft curve, not a nearby KG curve. • Double-check that your calculated heeling arm (GG₁) is compared to the correct GZ value on the selected stability curve before choosing the nearest angle.

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