🔍 Key Concepts

• KM (height of metacenter above keel) and how it is read or calculated from a stability data table or load form • Effect of removing weight high/low in the vessel on GM and KM • How to use the Sample Load Form #1 (Rig Move) to find initial and final hydrostatic values

💭 Think About

• First, determine whether discharging drill water from tanks 6 and 7 changes the vessel’s displacement and draft enough to move you to a different hydrostatic or KM entry on the form. What information on the Sample Load Form tells you that? • Think about whether KMT comes directly from the tank data, or from the hydrostatic/stability table for the new displacement after the tanks are emptied. • Compare the KM (or KMT) value associated with the original condition and the value for the displacement after discharge. Which one matches closest to the answer options?

✅ Before You Answer

• Be sure you are using KMT from the hydrostatic/stability section, not GM or KG from the loading calculation section. • Verify you are using the correct displacement after tanks 6 and 7 are empty (subtract the total weight of water discharged). • Confirm you are reading/interpolating the KM/KMT value at the correct displacement or draft that corresponds to the new condition, not the original one.