🔍 Key Concepts

• Use the initial drafts (FWD 9'-00", AFT 15'-11.5") to enter the hydrostatic pages in the white section of the Stability Data Reference Book and find the ship’s displacement and LCF/LCB at that condition. • For a one-compartment standard, you must use the appropriate damaged stability curves/tables in the white pages that relate the ship’s displacement to the minimum required GM. • Be careful to distinguish between actual GM (which you would calculate from KG/KB/BM) and the required minimum GM taken directly from a regulatory or damage-stability table.

💭 Think About

• From the given drafts, what is the approximate displacement you get from the hydrostatic data in the white pages? Which displacement row does that put you closest to in the one-compartment GM requirement table? • Once you locate the right displacement band for the AMERICAN MARINER, what is the minimum GM value shown there, and which of the answer choices matches it most closely? • Are the loads in the table (stores, lube oil, cargo, fuel oil, fresh water, ballast) used here to recompute KG/GM, or only to confirm that the resulting drafts and displacement you’re using are reasonable for this loading condition? Think about what the question is really asking.

✅ Before You Answer

• Confirm you are on the correct vessel (SS AMERICAN MARINER) and the correct white-pages table for one-compartment standard – not intact stability or two-compartment. • Verify that the displacement corresponding to the stated drafts is correctly read and that you are using the right displacement range row in the GM requirement table. • Double‑check that you are reading GM (feet), not KG or any other column, before matching to the multiple‑choice values.