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- Q122 - Deck Safety: Stability Problems
160. Your vessel has a beam of 40 feet, and you observe a still water rolling period of 20 seconds. What is the vessel's metacentric height?
The metacentric height (GM) is calculated using the formula GM = (0.44 * Beam / Roll Period)2. Substituting the given beam of 40 feet and a roll period of 20 seconds yields a GM of approximately 0.8 feet.
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