🔍 Key Concepts

• KG (height of center of gravity) changes when weights are added, removed, or shifted • How to compute a new combined KG after removing a known weight from a vessel • Using the displacement and vertical moments from the DEEP DRILLER Sample Load Form #4 (Drilling)

💭 Think About

• What information on the load form tells you the total displacement and the original vertical moment before dumping the liquid mud? • How do you calculate the moment of the liquid mud that is being removed, and how does removing that moment and weight affect the ship’s overall KG? • After you adjust total weight and total moment, how do you recompute the new uncorrected KG and compare it to the choices?

✅ Before You Answer

• Be sure you are using the correct weight and VCG (vertical center of gravity) for the liquid mud tanks from the load form • Confirm that you subtract both the mud’s weight and its moment from the totals when it is dumped • Verify your final KG by dividing total moment by new displacement and carefully matching units (feet and long tons) before choosing an answer