The DEEP DRILLER, at a mean draft of 60...

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Question 1 of 2066636ee728f7522a1c517912

The DEEP DRILLER, at a mean draft of 60 feet, has a two-foot trim by the head and a three foot list to starboard. What is the draft at the port aft draft mark?

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Question 1 of 20

66636ee728f7522a1c517912

The DEEP DRILLER, at a mean draft of 60 feet, has a two-foot trim by the head and a three foot list to starboard. What is the draft at the port aft draft mark?

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🔍 Key Concepts

• Trim and how it changes forward and aft drafts from the mean draft • List and how it changes port and starboard drafts from the centerline draft • Using right signs (add vs. subtract) when trim is by the head or by the stern, and when list is to port or starboard

💭 Think About

• First, ignore the list and figure out what the aft draft would be from the mean draft, given a two-foot trim by the head. Is the aft draft greater or less than the mean? • Next, from that aft draft on the centerline, think about a three-foot list to starboard. Will the port side draft at the stern be deeper or shallower than the centerline draft? • Combine the trim effect and the list effect step by step, checking at each step whether you should be adding or subtracting from the mean draft.

✅ Before You Answer

• Be clear that trim by the head means the forward draft is deeper than the aft draft, and relate that to how you adjust the aft draft from the mean • Remember that list to starboard makes the starboard marks read deeper and the port marks read shallower (or vice versa—verify the direction carefully) • After adjustments, check that your final port aft draft is reasonable: it should differ from the mean draft by less than the full trim and less than the full list amount in the appropriate direction

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Question 1 of 2066636ee728f7522a1c517912

The DEEP DRILLER, at a mean draft of 60 feet, has a two-foot trim by the head and a three foot list to starboard. What is the draft at the port aft draft mark?

Back

Question 1 of 20

66636ee728f7522a1c517912

The DEEP DRILLER, at a mean draft of 60 feet, has a two-foot trim by the head and a three foot list to starboard. What is the draft at the port aft draft mark?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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