I am currently facing dynamic stability issues while designing a new model. On doing manual calculations to find the resultant moment acting on C.B, we are getting high pitch value during the surge motion probably due to lower C.G - C.B distance and righting moment. Nevertheless, the values seem pretty unrealistic.
Is there any record of data/ manual calculation of Blue ROV that we could use as reference data to verify our results.? If any thumb rule that should be kept in mind while designing to maintain dynamic stability is available, would you please share it?