After transferring a weight forward on a...

🔍 Key Concepts

• Center of flotation (F) is the point about which the vessel trims (pivots in the longitudinal direction) • Shifting a weight forward or aft changes trim but does not change total displacement • The draft at the center of flotation is essentially the vessel’s mean draft (average of forward and aft drafts)

💭 Think About

• When you move a weight forward, what happens to the forward draft and the aft draft individually? • If the ship’s total weight (displacement) does not change, what does that suggest about the overall/mean draft? • Since the vessel trims about the center of flotation, what happens specifically to the draft right at that point when the bow goes down and the stern comes up (or vice versa)?

✅ Before You Answer

• Confirm that shifting a weight on board (without loading/unloading) does not change total displacement • Relate mean draft to the draft at the center of flotation • Decide whether a change in trim only must cause the draft at the center of flotation to increase, decrease, change with LCG, or remain unchanged

After transferring a weight forward on a vessel, the draft at the center of flotation will __________.

change, depending on the location of the LCG

increase

decrease

remain constant

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