Deck General · Ship Construction — Hogging & Sagging
A vessel is said to be 'hogging' when:
- AThe bow and stern droop relative to amidships
- BShe is trimmed by the stern
- CShe is listing to port
- DAmidships is higher than the ends (deck in tension)✓ Correct
Explanation
Hogging is when buoyancy/weight distribution leaves the midships higher than the ends—e.g., a wave crest amidships or weight concentrated at the ends—putting the main deck in tension and the keel in compression. Sagging is the reverse.
Authority: Bowditch; naval architecture
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