🔍 Key Concepts

• Difference between trim (longitudinal fore‑and‑aft balance) and stability (overall stiffness/heel) • Effect of shifting a single weight forward or aft on the draft at the bow and stern • Meaning of tipping center / longitudinal center of flotation (LCF) and what happens when weight is added or removed exactly there

💭 Think About

• Ask yourself: Which option changes how much the bow vs. stern sink or rise, rather than just making the ship more or less stable overall? • Consider what happens if you move a weight fore or aft: does one end of the ship go deeper while the other comes up? • If you add or remove weight right at the tipping center/LCF, will the vessel rotate in trim, or simply go up or down without changing the fore‑and‑aft angle?

✅ Before You Answer

• Be clear on the definition: Trim is the difference between forward and after drafts, not how high weights are in the ship • Identify which choices involve a fore‑and‑aft shift of weight versus only a vertical shift • For the options mentioning the tipping center, recall: at the LCF/tipping center, adding or removing weight changes overall draft but does not create a trimming moment