Your vessel's draft is 16'-00" fwd. and 18'-00" aft. The MT1 is 500 ft-tons. How many tons of water must be shifted from the after peak to the forepeak, a distance of 250 feet, to bring her to an even draft forward and aft?

Correct Answer: Option B — 48 tons

Shifting ballast requires calculating the total trimming moment divided by the transfer distance. With an initial trim of 2 feet (24 inches) and an MT1 of 500 ft-tons, shifting 48 tons over 250 feet eliminates the trim.