The COASTAL DRILLER has a trim of 2.13 feet...

Question 1 of 2707066636ee728f7522a1c517763

The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KMT is __________.

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Question 1 of 27070

The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KMT is __________.

🔍 Key Concepts

• Trim by the stern and how it affects forward and aft drafts • Relationship between observed draft, mean draft, and displacement from hydrostatic tables • How KMT (transverse metacentric height above keel) is read or corrected from hydrostatic data when the vessel is trimmed

💭 Think About

• How do you use the known trim by the stern and the forward draft reading to find the actual mean draft of the vessel? • Once you know the mean draft, what hydrostatic data or tables would you normally consult to obtain KM or KMT at that draft? • Is there any correction needed to the KM/KMT value due to trim, or is KM/KMT normally taken directly from the hydrostatic data for the mean draft?

✅ Before You Answer

• Be sure you are working in sea water, not fresh water, when relating draft to displacement and KM/KMT tables • Confirm that you are using the mean draft, not just the forward draft, when you mentally picture which hydrostatic row you would enter • Check that your final KMT is a reasonable height above the keel for a large offshore unit (not unrealistically low or extremely high)