The values of the ship parameters should be plotted versus the axial coordinate x. 

 Virtual mass and mass moments of inertia should be added to these curves (if not included in 

 the input) and average values of the parameters over a Ax section read from the curves (see 

 Chapter 3 of Reference 1). The effects of other nonstructural items should be incorporated in 

 accordance with this reference. 



The determination of inertial parameters^ (mass,2M; center of gravity Y-C.G., Z-CG.; 

 rotary inertias I-YY, I-YZ, I-ZZ; and polar moment of inertia I-MX) is reviewed separately in 

 Appendix A. 2. It is essentially identical to the determination of the terms A, y, z", I , I , 

 I , etc., for the elastic properties associated with tension and bending. The weight calcula- 

 tion for the sample problem which gives results agreeing with Table 3a is presented in 

 Table 4. 



59 



