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- Q133 - Deck Safety: Stability Problems
155. On a vessel of 9,000 tons displacement, compute the reduction in metacentric height due to free surface in a hold having free water on the tank tops. The hold is 20 feet long and 30 feet wide. What is the reduction in metacentric height?
The reduction in metacentric height due to free surface is calculated by dividing the free-surface moment by the vessel's displacement. Using the given hold dimensions and seawater density, the reduction is approximately 0.14 feet.
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