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gert
07-25-2007, 01:10 PM
It's time to start thinking about G.S.' deadwood which is esentialy a curved 5x5 18' long with a max depth of 18" at the rudder. I am considering laminating it on the boat using 3/4X6" material and cutting outfor the ballast keel later. The wood will be D-Fir, and thats the reason for laminating, to minimize checking. Any thoughts or suggestions?

This is apx what the lamination would look like (with a little streightening in the stern); it is of coarse bolted to the keelson and frames. Would sandwiching FG cloth between the laminations be a benefit?

http://farm2.static.flickr.com/1016/898849592_8ab54af0a7_b.jpg

Thorne
07-25-2007, 01:27 PM
Check out this thread on the topic -

http://www.woodenboatvb.com/vbulletin/upload/showthread.php?t=67571&highlight=laminated+deadwood

Chan
07-25-2007, 05:10 PM
I can't think of any reason to glass between laminations, just be added work and messy, you would have to fill the weave in all the laminations using much more glue.....
It's common practice to laminate D.F. for false stems keels and dead wood.

chuckm
07-27-2007, 02:19 PM
Gert, but that should be an excellent design-build. I have a good amount of 1900's long-leaf pine already in 2x6 mill. I was thinking of just butting up the boards and expoxying them together. I think I'll use it till I run out. Do,you see any problem with that technique. I saw(forum pic or Duckwork's) of sombody building a Eun Mara using that technique. Oh and I'm sticking wth solid one piece planking, on the table, then moving to boat.

Jim Ledger
07-27-2007, 02:45 PM
What is the reason for the complicated cut-out for the lead? It seems as if it could be simplified to make it easier to cut and a better fit. Why so many jogs?

I'd also dispense with the cloth.Thickened epoxy should be fine.

Chan
07-27-2007, 02:53 PM
I would have to guess the lead ballast keel already exists..

htom
07-27-2007, 03:11 PM
Have you considered laminating it (on the boat) in three parts, one running full length, making a small cutout, and then laminating the fore and the aft parts onto that? You'd save a lot in timber.