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Date Posted: - Tuesday - 09/ 3/13 - 12:19am
Author: Randall
Subject: Fasteners and fitting to samson posts
In reply to: andrew 's message, "bow sprit" on - Monday - 09/ 2/13 - 1:07pm

Hey Andrew,

I remember Annie Hill talking about constructing the hull of BADGER out of plywood and epoxy. They would use fasteners to fit the pieces in place and hold all together while the epoxy set, and then when set, they'd remove the fasteners because they weren't necessary and they could then use them somewhere else. They were extremely frugal, she and her husband. BADGER spent time in the southern ocean, so I guess she was strong enough.

Regarding the fit of the sprit to the Samson posts, see my post on replacing Murre's bow sprit. I assume the 40 and the 31 have a similar set up. The sprit is notched to butt up against the posts AND a cap block on the deck. See the drawings in particular.

http://www.marineryachts.com/projects/murre/bowsprit/Bowsprit%20Installation.htm

On Murre there's a 5/16ths through bolt that passes through both the Samson post and the sprit and anchors it in place (when replaced I went to 3/8ths). There was also a long bolt through the sprit and down through the deck that I did not replace. Didn't find it necessary. This bolt had an eye on top that was used for the storm jib, but I moved this eye to the side deck. Much of the rot in the sprit was at this point.

Another neat trick from Bruce on Gitana Vella. Drill out the fitting holes double large and fill with epoxy. Then drill for your fasteners. Good rot protection. Again, see my post.

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[> [> [> [> [> [> sprit -- andrew, - Tuesday - 09/ 3/13 - 9:56pm

Well thanks again for the comments.
I must say that its hard to believe that epoxy alone will be strong enough to keep it all together under all those loads but I guess it works.
Having said that, it is the joins that have caused the problems where water has got in and migrated up and down and began rotting.
But I think that it is the original so i guess that that's pretty good for a 40+ year old boat.
If I can post some photos, I will of the damage.
Then I will chronicle the rebuild.

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