Deck General · Weight Shifts & List
Deck cargo is loaded on the weather deck, raising G significantly. The most immediate effect on initial stability is:
- AAn increase in GM and stiffer rolling
- BA reduction in GM and more tender rolling✓ Correct
- CAn increase in freeboard and reserve buoyancy
- DNo change until the angle of loll is reached
Explanation
Adding top-weight raises G toward M, reducing GM. Less GM means a smaller righting moment at small angles. The ship rolls more slowly (longer period) and is more tender — less resistant to heeling forces.
Authority: Stability & Trim (USCG deck topic)
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