I've read plenty of things that talk about spacing bulkheads off the hullsides to prevent 'hard spots'. But I've torn a few boats apart, that had the bulkheads glassed right against the hull. I'm in the middle of rebuilding my Baja and would like to have the bulkheads run all the way up the hullsides, should I put some foam between the bulkhead and the hull side, or add say 12 inches of coring on top of the existing coring with the bulkhead in the middle? And what about the stringers, is it better that they are spaced off to or should they be directly against the hull?
Results 1 to 8 of 8
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02-15-2009 12:02 AM
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02-15-2009 12:59 AM
I had wondered about that myself in the past. Maybe Dave will enlighten us.
People we meet in life are either a Blessing or a Lesson
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02-16-2009 12:15 PM
Nobody???? Glassdave? Sharkey? Offshore Ginger??
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02-16-2009 12:49 PM
I know what I did when I was working on my boat. whether it is correct or not, I don't know. it's just what I determined doing some basic research and advice from others.
I bullnosed the bottom and top of the new wood for the stringer. when putting it in the boat, I blocked the wood into position on top of a peice of wetted mat, mixed resin wiith chopped glass and filler, then 'puttyed' the string in leaving a nice fillet radius between the base ofthe stringer and the hull so the glaass would'nt have to make a sharp bend. the bullnose on top allowed the glass to wrap over the top without sharp bends. to cover I laid down a layer of mat, tabed, clothe, matt, tab and cloth. I started early in the morning and busted azz so it all was done in one shot before anything really curedP-4077 "The Swamp" S.B.Y.C. and Michigan medboat mothership
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SHARKEY-IMAGESGuest02-16-2009 01:02 PM
This is how I did my forward bulkhead in the Sharkey Bullet 130
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02-16-2009 01:04 PM
Ahhh, so you rounded over the bottom of the stringers too, not a bad idea and it should have given you a little more leeway in matching the angle of cut on the stringer to the hull. I like it.
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SHARKEY-IMAGESGuest02-16-2009 01:28 PM
I cut the angle on the bottom of my stringers. I hot glue them in, then fill any voids with a fiber filled putty. From there a radius is much stronger and spreads the load on any angle. If I were to do any in the future, you would find a radius or at the very least a 45 degree core filler strip to help offset the loads in the corners.
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02-23-2009 06:11 PM