Subject: Re: [harryproa] Repairs, shenanigans, and Daggerboards
From: "Rob Denney harryproa@gmail.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 4/14/2019, 8:54 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 



On Fri, Apr 12, 2019 at 10:00 PM '.' eruttan@yahoo.com [harryproa] <harryproa@yahoogroups.com.au> wrote:
 

Looking at this
http://forums.sailinganarchy.com/index.php?/topic/207765-the-daggerboard-fell-off/

One can appreciate not having a daggerboard and case.

I was thinking about how simple the design of HPs are. How they are simple to build and operate. And how that makes repairs simple too.

So, doing a thought experiment for a minute, how could one damage and repair a HP in such a way as to hide or disguise the damage and low quality repair in the manner of the link? And, how would one detect said shenanigans?

Now there is a kind of inherent 'not applicableness' to the whole idea, because all your HP owners are builders, (currently?) and have the skills to fix problems right. After building a HP perhaps ones brain it trained to not cheat like above. And the boat is pretty simple.

I remember Rob mentioned there was a problem with BL in there was something (peel ply?) left in an infusion that should not have been.

The plastic mould release was not covered with peel ply in the half of the hull that I didn't build.  It mixed with the laminate in a most peculiar fashion. Could not get it all out, but it did not affect the laminate or the paint adherence


We just prior discussed how to deal with a hull holing at sea. Has Rob discussed how to do repairs properly? Most of it is typical 'this is how you repair foam and glass' concepts, and is not HP or II specific, right?

Standard stuff.  Shape the patch, glue it in and laminate on the inside unless the outside can be faired.  On the bigger boats, the outer laminate can be tapered and glassed, but it is probably not worth the effort as all the loads are pushing the patch inwards.  This does not apply to reinforced areas (masts, beams, rudders), where more care is required.  Doug's tools and materials list should be enough for most jobs.  I would add a few metres of tow and 2mm kite string to cover all eventualities.  


Your thoughts?

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Posted by: Rob Denney <harryproa@gmail.com>
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