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Old 09 December 2014, 17:33   #1
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Rebuild Advice Please

Hello,

I'm rebuilding the 6m Concorde RIB below. The transom and stringers have already gone, and the deck is going to be replaced too (its completely untreated on the underside).

Questions:

Best way to fit a new deck? enclose the ply in glass externally and then glass it onto the hull? is it reasonable to use polyester resin for this to keep the cost down

for transom replacement most guides seem to suggest adhering the bare core with epoxy filler, then coating with matting. Why not coat the core in epoxy/fabric first and then attach to the hull, with further layers on top?

thanks,

Mike

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Old 14 December 2014, 17:45   #2
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Nobody? Really? I didn't think opinions were in short supply in this forum....
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Old 15 December 2014, 04:25   #3
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I have no opinion having never undertaken such a job. But I am very interested to see how it works out for you in case I have to do the same. I am sure someone will be along soon.
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Old 15 December 2014, 04:38   #4
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Looks like a major project. One thing that strikes me on the cut down transom, what is the plan to get the matting from the outer side of the hull(bottom) round the "corner" to the outer side of the transom? More experienced builders here than me but maybe one option would be to do it from the inside against a waxed flat mold ? This only after careful preparation of course.
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Old 15 December 2014, 04:52   #5
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West Systems generally recommend a 12:1 bevel so, I was expecting to sand the hull back by 12x its thickness and build up layers of matting. could get ugly and i would have to work around the strakes.

My real worry is how to make a smooth finish on the rear of the transom.

Yes it's become a huge project, but its saving me a lot in fuel costs!
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Old 15 December 2014, 14:49   #6
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Quote:
Originally Posted by mdearman View Post
Nobody? Really? I didn't think opinions were in short supply in this forum....

Ahh! You originally asked for advice, now you want opinions, very different beasts. I can't offer any advice as it's beyond my pay grade, but if it's an opinion you want.........,,,


.....sh1t happens.......
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Old 15 December 2014, 15:22   #7
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too late now but the boat building forum i frequent suggests leaving the outside transom skin in place because it is hard to recreate the outside bottom edge. Also they only use epoxy for repairs as polyester doesn't do repairs as well. Bateau2.com - Technical support for builders

Not to say you are sunk but it's outside my paygrade as well.

Jason
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Old 15 December 2014, 15:57   #8
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This is a repair of a bodged repair by previous owner, the inner and outer skins were irretrievable.
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Old 15 December 2014, 16:52   #9
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not impossible, just more work. I'd check the site I referenced. They have the experience and know how to help you put it back together.

Jason
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