🔍 Key Concepts

• Transverse metacenter (M) relative to the keel (K) and center of buoyancy (B) • Use of hydrostatic curves or stability data tables for a specific displacement • Difference between GM (metacentric height) and KM (height of metacenter above keel)

💭 Think About

• What information would you normally look up on the vessel’s hydrostatic/stability data sheet when you are given a specific displacement like 13,050 kips? • Are the answer choices more likely to represent KM (from keel to metacenter) or GM (from center of gravity to metacenter)? • How does increasing displacement typically affect KM on a given vessel—does it change a lot or a little between nearby displacements?

✅ Before You Answer

• Verify whether the question is asking for height of the metacenter above the keel (KM) or above some other reference point. • Check that you are using the correct hydrostatic curve or table row corresponding to 13,050 kips displacement and that you’re not interpolating between the wrong values. • Confirm the units (feet vs meters) and ensure the value you select is consistent with typical KM magnitudes for a vessel the size of the Coastal Driller.