The SS AMERICAN MARINER is ready to bunker with drafts of FWD 13'-10", AFT 16'-04". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0187 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

Question

The SS AMERICAN MARINER is ready to bunker with drafts of FWD 13'-10", AFT 16'-04". After all bunkers are on board, soundings indicate the tonnages shown  in table ST-0187 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

Accepted Answer

Option A: 0.73 foot. Free surface correction (FSC) is calculated by dividing total free surface moments of all slack bunker tanks by the vessel's total displacement. Utilizing tank sounding tables ST-0187 yields a total free surface correction of 0.73 foot.