Inclining experiment

The inclining experiment determines a ship’s vertical center of gravity in the lightship condition by shifting known weights across the deck and measuring the resulting small angles of heel with pendulums or a U-tube. From the heeling moment and the measured tangent of the angle, the metacentric height is found, and with the metacentric radius from the hydrostatics the KG is back-calculated. It is run on completion in near-calm conditions per the IS Code 2008 procedure, and the result feeds every subsequent loading-condition stability check.