The SS AMERICAN MARINER is ready to bunker with drafts of FWD 21'-04", AFT 26'-04". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0170 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 21'-04", AFT 26'-04". After all bunkers are on board, soundings indicate the tonnages shown  in table ST-0170 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

Accepted Answer

Option A: 0.54 ft. Extracting tank sounding values from table ST-0170 in the Stability Data Reference Book, the summation of free surface moments divided by total displacement results in a calculated free surface correction of 0.54 foot for the specified bunker condition.