Your vessel's drafts are: FWD 23'-01", AFT...

Question 1 / 2066636eec28f7522a1c51d140

Question 1 of 2066636eec28f7522a1c51d140

Your vessel's drafts are: FWD 23'-01", AFT 24'-05"; and the KG is 22.8 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the remaining righting arm at 30° inclination if the center of gravity is 1.9 feet off the centerline.

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🔍 Key Concepts

• Use the selected stability curves for the exact drafts and KG given (FWD 23'-01", AFT 24'-05", KG 22.8') to find the uncorrected GZ at 30° • Understand how a transverse shift of G (KG off the centerline) creates a heeling arm that reduces the effective righting arm • Apply the correct trigonometric relationship between the off‑centerline distance and the heel angle to find the reduction in GZ

💭 Think About

• Once you read the GZ at 30° from the curve for KG 22.8', how does a 1.9 ft offset of G from the centerline affect that GZ value? Does it add or subtract? • What is the horizontal component of the 1.9 ft off‑center G at 30° of heel, and how is that related to the righting arm? • After you find the reduction due to G being off the centerline, what simple arithmetic operation do you perform with the original GZ from the curve to get the remaining righting arm?

✅ Before You Answer

• Make sure you are using the correct curve page and KG line (22.8 ft) in the blue pages before reading GZ • Confirm that you are using degrees (30°) in your trigonometric function, not radians or a wrong angle • Double‑check that you are reducing the original GZ by the heeling effect of G off centerline, not increasing it

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Question 1 of 20

3.7 feet

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1.4 feet

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Question 1 / 2066636eec28f7522a1c51d140

Question 1 of 2066636eec28f7522a1c51d140

Back

Question 1 of 20

66636eec28f7522a1c51d140

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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