Subject: Re:: Re: [harryproa] Build technique compilatons
From: "'.' eruttan@yahoo.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 9/22/2019, 12:01 AM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

As, I am not a sailor, so, too, I am not a composite engineer. I am barely a boat builder.

But, why curve flat panels? Why not make curved panels to your requirements?

Is it not as simple as making two curves and screwing a bendable sheet to them. Say MDF or OSB? Now you have a curved plane you can infuse on. Its just like a flat panel, only curved.

Infused panels are stiff. Yes they can be bent, but that's a lot of kinda unpredictable work, I think.

In II you take sheets cut to curves to make 3 sided moulds. So something like the sides and bottom of that boat, (Rob's are double ended, so two bows, but there is no anti transom bias here) with all the interior wood removed. Then you lay out your various fibers, foams, films, and fittings. When you are happyish, pull vac, and see if your happiness is still intact, then whip up the epoxy and flow it in.

It is that simple.

When your done out pops a shell. Then the various internal parts and whatsits and halumacallits and so ons, which are mostly done on flat panels or perhaps curved ones, I guess, if that floats your boat.

Glue those in how you like. II has a bunch of ideas for those.

You can get a set of plans for the T60. Once you see it you'll be impressed.

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Posted by: "." <eruttan@yahoo.com>
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