When a vessel's LCG is aft of her LCB, how...

Question 1 / 2707066636eec28f7522a1c51c853

Question 1 of 2707066636eec28f7522a1c51c853

When a vessel's LCG is aft of her LCB, how will the vessel respond?

Question 1 of 27070

When a vessel's LCG is aft of her LCB, how will the vessel respond?

🔍 Key Concepts

• Longitudinal Center of Gravity (LCG) – where the ship’s weight acts along the length • Longitudinal Center of Buoyancy (LCB) – where the buoyant force acts along the length • How the relative position of LCG and LCB affects trim (by the head or by the stern), versus list (athwartship)

💭 Think About

• If the vessel’s weight (LCG) is located aft of the buoyant force (LCB), which way does the ship tend to rotate longitudinally? Picture a seesaw: where is the weight relative to the pivot? • Which choices describe fore-and-aft trim, and which choice describes side-to-side inclination? Eliminate the ones that involve the wrong plane of movement. • If LCG and LCB are in the same longitudinal position, what trim condition exists? Now think about what happens when LCG moves aft of that point.

✅ Before You Answer

• Identify which options refer to trim (fore-and-aft: bow vs stern) and which refer to list (port vs starboard). • Confirm that LCG aft of LCB causes a rotational moment about the LCB – decide whether that makes the stern go deeper or shallower. • Verify your understanding that an even keel occurs when LCG and LCB are in longitudinal alignment, with no net trimming moment.

Question 1 of 27070

When a vessel's LCG is aft of her LCB, how will the vessel respond?

The vessel will be trimmed by the head

The vessel will be on an even keel

The vessel will be trimmed by the stern

The vessel will have a list

Question 1 / 2707066636eec28f7522a1c51c853

Question 1 of 2707066636eec28f7522a1c51c853

When a vessel's LCG is aft of her LCB, how will the vessel respond?

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Question 1 of 27070

When a vessel's LCG is aft of her LCB, how will the vessel respond?