What is the port leg reaction for the COASTAL DRILLER if the total weight is 15,000 kips, LCG is 120 feet, and TCG is 1.0?

Correct Answer: Option A — 4,909 kips

Leg reaction calculations for independent-leg mobile offshore drilling units like the COASTAL DRILLER depend on total weight, longitudinal center of gravity (LCG), and transverse center of gravity (TCG) moments applied to the hull structure, resolving via static equilibrium equations to 4,909 kips on the port leg.