Originally Posted by Sonar
Can any of the forum members help me with this one.
Grp laying up a hull of 18foot. ( home build )
I have been told layup to a 6 oz then fit stiffeners and then lay up another 4 oz .
A total of 10 oz.
another 2 oz along the keel and transom.
Is this strong enough ?
or over the top for an 18 foot rib?
what are you going to do with all this information you are collecting?
the layup for a small fisher, i reckon something like 2x 600, 1x 800/300 combi, 1x 600 (600 is 2oz)
i would lay 600chop,800/300combi, 600chop over stiffeners
dont worry about the 2oz over the keel as the overlap from each side should come up 300mm either side.
it's a light layup and nowhere near what a rib hull gets, but i'm assuming there's gunnels and things above deck to give it some rigidity
thats a simple answer but it's not quite that easy, you still have fillins for spray rails and chines, transom woods, stringers, floor supports and lots more but as you ask i thought someone should answer