Abstract

This chapter deals with the angle of list. It considers a ship floating upright, where the centre of gravity and buoyancy are on the centerline. The resultant force acting on the ship is zero, and the resultant moment about the centre of gravity is also zero. It is assumed that weight already on board the ship is shifted transversely such that G moves to new centre of gravity (G1). This will produce a listing moment, and the ship will list until G1 and the centre of buoyancy are in the same vertical line. In this position, G1 will also lie vertically under metacentre M so long as the angle of list is small. Therefore, if the final positions of the metacentre and the centre of gravity are known, the final list can be found. The final position of the centre of gravity is found by taking moments about the keel and about the centerline.

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