The DEEP DRILLER, at a draft of 60 feet, has 3,765 ft-tons of transverse moments. How much ballast should be transferred between tanks 1P and 1S to level the unit in list?

Correct Answer: Option A — 25.1 long tons

Transverse weight shift calculations utilize the standard formula: transferred weight equals (displacement times list moment arms) divided by the distance between tanks, yielding the exact counter-moment required to restore level trim per standard stability criteria.