Deck General · Angle of Loll
How can you distinguish a list from loll when a vessel is heeled to one side?
- AA list is always larger than loll
- BWith a list the vessel stays firmly on one side; with loll the vessel may flop slowly from side to side✓ Correct
- CLoll only occurs in beam seas; list only occurs in port
- DThere is no practical difference — both require the same corrective action
Explanation
A list is a permanent heel due to transverse G offset on a vessel with positive GM. The vessel stays on the listed side. Loll arises from negative GM — the vessel is unstable upright and oscillates sluggishly between the loll angle on each side. The flopping behavior is the diagnostic sign.
Authority: Stability & Trim (USCG deck topic)
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