Use the material in Section 1, the blue...

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Question 1 of 2066636eec28f7522a1c51d034

Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 24.2 feet, and the drafts are: FWD 22'-04", AFT 23'-00"; at what angle will the vessel lose positive stability?

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🔍 Key Concepts

• Using Section 1 (blue pages) stability curves for a specific displacement • Relationship between mean draft and displacement from the hydrostatic data • Effect of a higher KG on the angle of vanishing (zero) stability

💭 Think About

• What is the vessel’s displacement at the given drafts, and which displacement curve in Section 1 is closest to that value? • Once you select the proper stability curve, how does the given KG = 24.2 ft change where the righting arm (GZ) becomes zero? • Between which two angles on the curve does GZ change from positive to zero/negative, and how can you interpolate between them?

✅ Before You Answer

• Compute and double-check the mean draft before entering the tables • Confirm you are using the correct displacement page in the blue pages that matches your calculated displacement • Verify at which angle the righting arm (GZ) curve for KG = 24.2 ft crosses zero, and whether you need to interpolate between two listed angles

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