A vessel is limited to a maximum draft of 25'-11". The present drafts are: FWD 24'- 10", AFT 23'-02". How much more cargo can be loaded and where should it be located if a drag of 18 inches is desired? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

Correct Answer: Option B — 690 tons 62 feet aft of the tipping center

Solving hydrostatic trim equations with stability reference tables requires determining the moment required to alter trim to 18 inches. Distributing 690 tons at a precise moment arm of 62 feet aft of the tipping center achieves the exact required draught differential.