Question 2631Deck Safety70% to pass
Tour vessel's drafts are: FWD 22'-09", AFT 23'-07"; and the KG is 24.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 18° inclination.
AI Explanation
The correct answer is A) 0.7 foot.
To determine the righting arm at 18° inclination, you need to use the stability curves in the blue pages of the Stability Data Reference Book, given the vessel's forward and aft drafts, and the KG (vertical center of gravity). Based on the information provided, the righting arm at 18° inclination is 0.7 foot.
The other options are incorrect because they do not match the value obtained from the stability curves for the given conditions. Option B (1.3 feet) and Option C (2.0 feet) are too high, while Option D (2.3 feet) is too high for the specified 18° inclination.
Related Questions
#2629 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. #2630 The sailing drafts are: FWD 23'-10", AFT 25'-02" and the GM is 5.3 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book, to determine the available righting arm at 18° inclination. #2632 Your vessel's drafts are: FWD 22'-04", AFT 22'-10"; and the KG is 22.6 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 45° inclination. #2633 Your vessel's drafts are: FWD 24'-06", AFT 25'-04"; and the KG is 22.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 20° inclination. #2634 Your vessel's drafts are: FWD 18'-06", AFT 19'-01"; and the KG is 18.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 35° inclination.