A jack-up has 8 inches of trim by the stern. Calculations show that the moment required to change trim one inch is 500 foot-kips. To level the unit, how far must a weight of 50 kips be transferred toward the bow?

Correct Answer: Option C — 80.0 feet

The required weight shift distance is found using the formula $d = \frac{\text{Trim} \times \text{MCL1"}}{\text{Weight}}$. Substituting the given values: $\frac{8 \text{ in} \times 500 \text{ ft-kips}}{50 \text{ kips}} = 80.0$ feet toward the bow, applying standard hydrostatics principles.