Your vessel's drafts are: FWD 19'-03", AFT 21'-03". The LCG of the forepeak is 200 feet forward of amidships. How many tons of ballast must be pumped into the forepeak in order to have a drag of 1 foot? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
Official USCG Answer & Rule Citation
Correct Answer: Option A — 62 tons
Using the vessel's stability data, calculate the required change in trim (1 foot) and apply the Moment to Change Trim One Inch (MT1). By multiplying the required trim change by the MT1 and dividing by the distance from the LCF to the forepeak, the required ballast weight is determined as 62 tons.
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