Hi guys It's tricat !Bit of interest for Dreamwakes.In John-Shuttleworths write ups on one of his multi's called Nai'a[30ft]He describes how they looked at things to improve performance.Like Taylors tank tests for hull length/breadth ratios.It is only a small write up but it gives you an insight
to what to look at.Just type in the following '30ft trimaran Nai'a' then click on the heading, '30ft
racing trimaran' for the write up.Regards Scotty