A couple of questions

Hi

I have a few question relating to trnasportation analysis, seastate and wave response modules:

1. Transportation (tow) Analysis: How to determine centre of roll of structure (option within 'weight' in precede) is it something SACS gives you when reporting CoG? That is, structure rolls about an axis through CoG?

2. Seatate: What is SEAS line. Please would you provide a practical description (I have already read it within SACS manual but there is still some confusion).

3. Wave response: What is SEED? Again please provide a practical description.

Many thanks.