🔍 Key Concepts

• Displacement is the weight of the volume of water the vessel pushes aside when floating at a given draft • Use the displacement–draft curve or hydrostatic table for the COASTAL DRILLER to find displacement at 10 ft 6 in • Be careful with unit conversions (feet vs inches, tons vs kips)

💭 Think About

• From 10 feet 6 inches, how would you enter or interpolate on a hydrostatic (draft–displacement) table? • If the table gives displacement in long tons, how do you convert that value into kips (1 kip = 1,000 pounds)? • Are the answer choices close together? If so, what does that tell you about the need for accurate interpolation and careful rounding?

✅ Before You Answer

• Make sure you are using the correct hydrostatic data for the COASTAL DRILLER at the stated draft (10 ft 6 in) • Confirm whether the table value is in long tons, metric tons, or pounds before converting to kips • After converting, check that your final displacement value is reasonable and close to one of the given choices before rounding