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The dimensions of all new parameters must be meters (m), and they are SYS parameters. Their relations follow. GM is a Top Goal and should be moved to Top Goals/Undefined.

In the class Stability, enter the following relations.

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Moment_of_Inertia = 1/12 * INTEGR(Hull(@X, @B3_Frame, Lpp, B), 2, @X, @B3_Frame, 2, 0, Lpp)

 Please note (and you might have experienced this in the previous tutorial too) that the parameter Moment_of_Inertia might still have a red cross and an Error warning in the knowledge base although you have provided the relation and a dimension. When this is the case, for sure you still have the Hull object in focus in a solution of the Workbase. When this is the case, Quaestor communicates that the relation you have provided cannot be used inside this object (and thus you have a red cross for Moment_of_Inertia). When you select a top node of a solution, you will see that the Moment_of_Inertia parameter is properly defined.

Third power of the width at a specified frame number in m^3: 

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