The SS AMERICAN MARINER arrived in port with...

Question 1 / 2066636eec28f7522a1c51cb6b

Question 1 of 2066636eec28f7522a1c51cb6b

The SS AMERICAN MARINER arrived in port with drafts of: FWD 28'-08", AFT 29'-05". Cargo was loaded and discharged as indicated in table ST-0012 below. Use sheet 2 in the white pages of The Stability Data Reference Book to determine the final drafts.

NMC has NOT supplied the weights to load or discharge for this question.

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Question 1 of 20

66636eec28f7522a1c51cb6b

NMC has NOT supplied the weights to load or discharge for this question.

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🔍 Key Concepts

• Using mean draft and trim by the stern from the initial drafts • How loading vs. discharging weight forward or aft of amidships creates a trimming moment • Using TPI (tons per inch immersion) and MT1" (moment to change trim 1 inch) from Sheet 2 for the SS AMERICAN MARINER

💭 Think About

• First, if you add up all the loads and discharges, is the ship getting heavier or lighter overall, and what does that do to the mean draft? • Next, take each weight, multiply by its distance from amidships, and assign a sign (forward vs. aft). What is the algebraic sum of these trimming moments? • Once you find the total change in trim in inches, how do you split that trim between the forward and aft drafts, starting from the initial drafts given in the question?

✅ Before You Answer

• Be consistent with signs: choose one direction (e.g., aft of amidships) as positive and keep it that way for every weight and distance. • Use the hydrostatic values (TPI and MT1") from Sheet 2 at the correct mean draft near 29 feet – don’t mix data from different drafts. • After computing the new mean draft and trim, recompute the final forward and aft drafts and check they still average to your new mean draft.

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Question 1 of 20

FWD 29'-04", AFT 29'-04"

FWD 28'-10", AFT 29'-04"

FWD 29'-05", AFT 29'-08"

FWD 29'-02", AFT 29'-07"

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Question 1 / 2066636eec28f7522a1c51cb6b

Question 1 of 2066636eec28f7522a1c51cb6b

NMC has NOT supplied the weights to load or discharge for this question.

Back

Question 1 of 20

66636eec28f7522a1c51cb6b

NMC has NOT supplied the weights to load or discharge for this question.

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