The sailing drafts are: FWD 14'-08", AFT...

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Question 1 of 2066636eec28f7522a1c51cc41

The sailing drafts are: FWD 14'-08", AFT 15'-06" and the GM is 4.8 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book, to determine the available righting arm at 40° inclination.

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Question 1 of 20

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🔍 Key Concepts

• Using Section 1 (blue pages) of the Stability Data Reference Book to match drafts to the correct displacement/condition • How GM and angle of heel (40°) relate to the righting arm (GZ) from the curves or tables provided • The need to interpolate carefully if the exact value is not tabulated

💭 Think About

• What is the mean draft from the given forward and aft drafts, and which condition or displacement in the blue pages is closest to that mean draft? • Once you identify the correct curve/table for the vessel’s condition, where on that page do you find the righting arm corresponding to 40° of heel? • If your exact GM or displacement is not listed, how would you interpolate between two tabulated values to estimate the righting arm at 40°?

✅ Before You Answer

• Make sure you are on the correct vessel/condition page in Section 1 that matches the given sailing drafts (via mean draft/displacement). • Confirm you are reading GZ (righting arm) at 40°, not a different angle or a moment value. • If you interpolate, double‑check both the input values (GM, angle, displacement/mean draft) and the direction of change—does GZ increase or decrease as GM or displacement changes in that range?

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