On this item the position of the metacentre can be varied to produce stable and unstable equilibrium. The equipment consists of a plastic rectangular floating pontoon, the centre of gravity of which can be varied by an adjustable weight, which slides and can be clamped in any position on a vertical mast.
A single plumb-bob is suspended from the mast, which indicates the angle of heel on a calibrated scale. A weight with lateral adjustment enables the degree of heel to be varied and hence the stability of the pontoon determined.
The equipment does not require a separate water tank as it may be used on the hydraulics bench by filling the volumetric tank.
| Item | Value |
| Max. angle of heel: | ±13° |
| Corresponding linear dimension: | ±90mm |
| Pontoon dimensions: | length 350mm width 200mm overall height 475mm |
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