Buoyancy is an upward force equal on a floating object equal to the weight of water displaced by it

Buoyancy is a downward force equal on a floating object equal to the weight of water displaced by it

Buoyancy is a myth

Buoyancy is the point on the vessel where the forces act vertically downwards

Vertical distance in metres from the keel to the waterline

Horizontal distance in metres from the keel to the waterline

Vertical distance in metres from the waterline to the uppermost continuous deck edge

Horizontal distance in metres from the Stem to the Stern of the vessel

An added bonus

Volume contained in the watertight spaces above the waterline

An inbuilt stability measure

Volume contained in water tight spaces below the waterline

A point on the vessel where the forces of gravity act vertically upwards

A point on the vessel where the forces of gravity act vertically downwards

A point on the vessel where the forces of gravity act horizontally

A point on the vessel where the forces of gravity disappear

GZ

KM

KG

GM

The defining factor

The righting lever

Metacentric height

Height of Buoyancy above sea-level

Stable, Unstable, Very Stable

Stable, Unstable, Neutral

Stable, Natural, Unsteady

Stable, Not-so Stable, Freaky

Nothing, this is perfectly acceptable

Vessel will Capsize

Vessel will roll and return to the upright

Needs more assessment

Centre of Gravity is above the metacentre

Centre of Gravity is above the Centre of Buoyancy

Metacentre is above the Centre of Gravity

Centre of Buoyancy is above the Centre of Gravity