A jack-up 180 feet in length with the LCF at...

Question 1 / 2066636ee728f7522a1c517e9a

Question 1 of 2066636ee728f7522a1c517e9a

A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern?

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Question 1 of 20

66636ee728f7522a1c517e9a

A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern?

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🔍 Key Concepts

• Relationship between mean draft, trim, and drafts at the bow and stern • How LCF (Longitudinal Center of Flotation) position affects the distribution of trim • Using proportions: trim per foot of length = total trim ÷ length between perpendiculars

💭 Think About

• Sketch the vessel, mark the FP (forward perpendicular), AP (aft perpendicular), and the LCF at 120 ft from forward on a 180‑ft vessel. How far is the LCF from the stern? • If the vessel trims 3 ft by the stern, how much of that trim shows up at the stern compared to the bow, given the LCF is not at midships? • Starting from the true mean draft at the LCF (10 ft), should the draft at the stern be greater than or less than 10 ft if the vessel is trimming by the stern?

✅ Before You Answer

• Confirm the distance from LCF to stern and distance from LCF to bow add up to the vessel’s length (180 ft). • Compute the trim per foot of length (total trim ÷ 180). Then multiply that by the distance from LCF to the stern to find the draft correction aft. • Check that your final stern draft is consistent with a vessel trimmed by the stern (stern draft must be deeper than the mean draft at LCF).

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Question 1 of 20

A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern?

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Question 1 / 2066636ee728f7522a1c517e9a

Question 1 of 2066636ee728f7522a1c517e9a

A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern?

Back

Question 1 of 20

66636ee728f7522a1c517e9a

A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is the draft at the stern?

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

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed