Question 2639Deck Safety70% to pass
Your vessel's drafts are: FWD 22'-04", AFT 22'-10"; and the KG is 18.4 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 30° inclination.
AI Explanation
The correct answer is D) 4.6 feet.
To determine the righting arm at 30° inclination, you need to refer to the stability curves in the blue pages of the Stability Data Reference Book. With the given drafts (FWD 22'-04", AFT 22'-10") and KG (18.4 feet), you can locate the appropriate stability curve and read the righting arm value at 30° inclination, which is 4.6 feet.
The other options are incorrect because they do not match the value obtained from the stability curves for the given vessel characteristics. The stability curves are the authoritative source for determining the righting arm at a specific angle of inclination, and 4.6 feet is the correct value based on the information provided.
Related Questions
#2637 Your vessel's drafts are: FWD 18'-09", AFT 20'-05"; and the KG is 23.8 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 15° inclination. #2638 Your vessel's drafts are: FWD 17'-07", AFT 16'-09"; and the KG is 21.5 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 30° inclination. #2640 Your vessel's drafts are: FWD 24'-04", AFT 25'-10"; and the KG is 23.5 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 37° inclination. #2641 Your vessel's drafts are: FWD 16'-08", AFT 17'-06"; and the KG is 23.8 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the remaining righting arm at 60° inclination if the center of gravity is 1.7 feet off the centerline. #2642 Your vessel displaces 12,000 tons and has a KG of 22.6 feet. What will be the length of the remaining righting arm at an angle of inclination of 30° if the center of gravity shifts 1.8 feet transversely? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)