Hi

"Rufus" skrev i en meddelelse
news:ehJHb.158921$8y1.474281@attbi_s52...
I heard that some Scandinavian builders built carvel boats with no gap
at all, just perfect seams, no glue, no caulking. Don't know details,
it's been a while since I looked into it. I believe they were sailing
vessels, 35' and more, they were built thus to provide more hull
stiffness, amoung other things, and they didn't seap/leak at all.
Snip

Sure you need no caulking if you don't want any, ------ this was common
knowleage and there are a number of tricks to make sure the seam work tight
without caulking ;
Hammer down a long rod along the plank edge and plane away untill you reach
the bottom of the grove made by deforming the plank edge. Then when soaked
the compressed wood will swell.
Place the planking forgetting about the seam ,as long as the seam is not
wider than a router bit, when you are sure the wood stabilised router away
along the seam and glue in a wood spline.
Still these old tricks work for true wooden boats ,Im'e not sure it's worth
the efford with any ply boat, even if a routered in wood spline along a
tortured seam is there from the start within the plans ,it's proberly a very
good idea but I wonder if any box boat plans ask this, ------ case so I
would like to se the naval architect recomend from his own hands-on
experience.

P.C.
http://www.designcommunity.com/scrap...mages/2985.jpg