Your vessel has a displacement of 19,800 tons. It is... - USCG Deck Safety

Your vessel has a displacement of 19,800 tons. It is 464 feet long, and has a beam of 64 feet. You have timed its rolling period to be 21.0 seconds in still water. What is your vessel's approximate GM?

A 1.1 ft

B 1.3 ft

C 1.6 ft

D 1.8 ft

AI Explanation

The correct answer is D) 1.8 ft. To determine the approximate GM (metacentric height) of the vessel, we can use the formula: GM = (T^2 * g) / (2 * π^2 * L), where T is the rolling period, g is the acceleration due to gravity, and L is the length of the vessel. Plugging in the given values, we get: GM = (21.0^2 * 32.2) / (2 * π^2 * 464) = 1.8 ft The other options are incorrect because they do not accurately reflect the calculated GM value based on the provided information.

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Question 2516 Deck Safety

Your vessel has a displacement of 19,800 tons. It is 464 feet long, and has a beam of 64 feet. You have timed its rolling period to be 21.0 seconds in still water. What is your vessel's approximate GM?

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