hi all,
I have a problem with calculating the center of effort. I understand that on a boat with a genoa, you work out the centre of the sail area for the mainsail (including the roach) + the genoa (foretriangle), then you use the average distance between the center of the genoa and the centre of the mainsail for the position to measure the distance to the waterline, but what if the cat had a small jib of an area of 2 m2. If you do what you did with the genoa (find the center of genoa) to the jib, the distance between the center of the mainsail to the centre of the jib is huge because the jib is so low down the mast and so small. on the FX-ONE you can have the jib as an option, but if you add or take away the jib won't it have a big affect on the center of effort? can anyone tell me how a professional cat designers work out the the center of effort with a cat with a small jib that sometimes would not be used?
regards
Tom