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angle of Loll As the vessel is pushed out of the upright condition by an external force it will heel one way or the other. If at the same time, the vessel is in an unstable condition as shown above, even when the external force is removed, the vessels angle of heel will continue to increase until the buoyancy force acting vertically upwards through centre of buoyance “B”is again in line with the weight force, acting vertically downwards through “G”. The vessel will then again reach a state of neutral equilibrium, albeit with a list. This list, where an unstable vessels heels until the movement of the centre of buoyancy again is in the same vertical line as the centre of gravity, is called the angle of Loll. Ref. Abbreviation:  Pg 45 Ch 10

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