The SS AMERICAN MARINER is ready to bunker...

Question 1 / 2066636eec28f7522a1c51cbf2

Question 1 of 2066636eec28f7522a1c51cbf2

The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-06", AFT 17'-00". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0085 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

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🔍 Key Concepts

• Use the Free Surface Correction (FSC) formula: FSC = (sum of free surface moments) / displacement • From the white pages for SS AMERICAN MARINER, find the free surface moment for each tank at the indicated tonnage (slack tanks only) • Be careful to use the correct displacement from the hydrostatic data based on the given drafts

💭 Think About

• Which of the tanks listed in ST-0085 are clearly full, clearly empty, or slack when you compare their tonnages to the tank-capacity tables in the white pages? • Once you have identified the slack tanks, how do you combine their individual free surface moments into a single total free surface moment for the ship? • After you find the total free surface moment, what value from the hydrostatic tables (based on the drafts given) must you divide by to convert that into a GM correction in feet?

✅ Before You Answer

• Verify you are only using tanks that are slack (not pressed up and not empty) when you sum free surface moments • Confirm you use free surface moment (FSM), not weight or capacity, in the FSC formula • Double‑check that the displacement you divide by matches the draft condition specified in the problem and is taken from the correct American Mariner hydrostatic table

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Question 1 of 20

0.52 foot

0.70 foot

0.84 foot

1.10 feet

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Question 1 / 2066636eec28f7522a1c51cbf2

Question 1 of 2066636eec28f7522a1c51cbf2

Back

Question 1 of 20

66636eec28f7522a1c51cbf2

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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