A MODU displacing 30,500 long tons has a KG of 60 feet. A weight of 500 long tons is discharged from a VCG of 150 feet. What is the change in KG?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 1.5 feet downward
The change in center of gravity resulting from weight discharge is calculated using the formula $\Delta KG = \frac{w \times (KG - vcg)}{W - w}$. Substituting the values: $\frac{500 \times (60 - 150)}{30,500 - 500} = \frac{-45,000}{30,000} = -1.5$ feet, representing a 1.5-foot downward shift.
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