Stewart,

I am happy with any input, especially critical, as that often bring a new angle or information to the issue.
200gsm is choosen becouse it have proven to be a good schedule on kayaks both for strength and stiffness. Some of the tests done by Gougeon bros (J.R. Watson really did them I think) indicate that this is the best weight vs panel stiffness ratio for our project as we try to match materials to make it as strong as a proven ply boat. But as mentioned earlier, only the test panels will tell.

85gsm at the bow and 200gsm further back has been suggested.. How much work should we put into this is the question. Interestingly enough, a carbon laminate dont seem to have helped to bring weight down. A light carbon cloth would probably have needed more epoxy so it would have come out stiffer and stronger, but heavier. Pretty interesting I tought.

By golly, I also hope this works out <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />