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Angle of loll. The initial transverse metacentre (M) is below G.
Angle of loll. has a negative metacentric height) and therefore takes on an angle of heel to either port or starboard. Let’s break down what these terms mean, why they happen, and most importantly, what corrective actions can be taken to restore the ship’s balance and safety. Today we discuss an angle of loll (AOL): what it is, how to find it, and what to do about it. What is an angle of Loll? What causes and angle of loll? How to correct an angle of loll. An angle of loll can be corrected only by lowering the centre of gravity, not by moving loads transversely. Angle of loll is the state of a ship that is unstable when upright (i. What is Angle of Loll? A ship is in an unstable condition if, when heeled by an external force in still water to a small angle, it continues to heel further when the external force is removed. Aug 3, 2021 · The angle of Loll is that angle of heel at which a ship with negative GM will come to rest. e. The initial transverse metacentre (M) is below G. Angle of loll is the state of a ship that is unstable when upright (i. Oct 13, 2022 · The angle of inclination of the vessel under given conditions at which it oscillates is known as the angle of loll, and the vessel is said to be in a state of continuous rolling motion. > However even though the vessel appears stable at this angle this condition is dangerous and must be corrected. > Normally at the angle of loll the vessel oscillates about its angle and returns to her angle of loll position. May 7, 2025 · In maritime terms, this is known as a ship list or an angle of loll. Nov 24, 2019 · The angle of heel at which this occurs is referred to as the angle of loll and may be defined as the angle to which a ship with negative initial metacentric height will lie at rest in still water. When this occurs, the vessel goes to neutral equilibrium, and the angle of heel at which it happens is called angle of loll. It is an extremely dangerous situation and in extreme cases, a vessel may even capsize. This can be done by moving weight downwards, adding water ballast in double bottom tanks or removing weight above the ship vertical centre of gravity. Consider a ship that is floating upright in still water with G and B as shown. . Angle of loll shines like a bright red warning sign, indicating serious stability problems. pksixfllevzilcenmjpzwxspeexzuxddwyqqmtfndozsvahvqjilt