The SS AMERICAN MARINER is ready to bunker with drafts of FWD 18'-06", AFT 20'-06". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0099 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 18'-06", AFT 20'-06". After all bunkers are on board, soundings indicate the tonnages shown  in table ST-0099 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

Accepted Answer

Option A: 0.91 foot. Dividing the sum of transverse free surface moments from bunker table ST-0099 by the vessel's loaded displacement gives the virtual elevation of the center of gravity, resulting in a free surface correction of 0.91 foot.