Translations:FreeCAD-Ship s60 tutorial (II)/4/en

Introduction
In this tutorial we will work with weights and tanks in order to compute GZ curve, the most important hydrostatic stability parameter. GZ is the static moment generated when the ship takes roll angle, of course, since the GZ arm is positive, the ship has a positive moment, and will try to recover upright position, but when GZ turns on negative numbers ship has not anymore stability, reaching a critical situation.