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A permanent inclination of the ship due to the uneven distribution of weight onboard, which can be due to cargo shift or water ingress.

The stability of a ship at small angles of inclination, typically related to the metacentric height (GM) and influenced by the distribution of mass.

The lowest compartments on a ship, where water typically collects and can affect stability if not properly managed by bilge pumps.

Material (often water) placed in the ballast tanks of a ship to increase stability, trim, or draft, essential for safe operational handling.

The angular movement of a ship around its transverse axis, causing the bow and stern to move up and down alternately in a seaway.

Graphs showing the relation between the righting arm (GZ) and the angle of heel for various vessel displacements, vital for analyzing stability across a range of conditions.

The measure of a ship's carrying capacity, including cargo, fuel, passengers, crew, etc., which impacts stability by changing the vessel's draft.

The point in a body or system around which its mass or weight is evenly distributed or balanced and through which the force of gravity acts.

The condition of a ship's hull and superstructure that prevents water ingress, critical for maintaining buoyancy and stability.

The upward force exerted by a fluid that opposes the weight of an object immersed in it. Crucial for keeping ships afloat.

The horizontal distance between the centre of gravity and the centre of buoyancy when a vessel is inclined; a moment that tends to restore a vessel to the upright position.

An oscillating movement of a ship around its longitudinal axis caused by external forces like waves or wind, which can affect stability.

Graphs showing the relationship between ship stability factors (such as metacentric height, buoyancy, etc.) and the vessel's displacement or draft.

The ability of a ship to return to an equilibrium position after being subjected to external forces, considering the energy needed to displace it from upright.

The volume of a ship's hull that is above the waterline, which contributes to the vessel's ability to remain afloat and resist capsizing.

The inclination of a ship to one side due to external forces, such as wind or turning, which is not necessarily related to a lack of stability.

The distance between the centre of gravity (G) and the metacentre (M), an indicator of ship's initial stability; the larger the GM, the greater the ship's stability.

The phenomenon where liquids within a ship's tanks or compartments shift, reducing the ship's stability, especially in partially filled tanks.

The angle to which a ship with negative stability will rest in calm water without any external forces acting upon it.