[Public-List] Chainplates

[Kris Coward via Public-List]

I thought that was the 2013 Rankin Regatta...

-K

On Sun, Nov 01, 2015 at 06:41:15PM -0500, Jonathan Bresler via Public-List wrote:
> The first occassion that comes to mind is that on TC Williams' Argo #247,
> the chainplate pulled through the deck during the first day of the 2012
> Rankin Regatta.
> 
> Jonathan
> On Nov 1, 2015 6:33 PM, "Gordon Laco via Public-List" <
> public-list at lists.alberg30.org> wrote:
> 
> > Have there been any failures of these bolts besides the one Yves Gelinas
> > experienced in the Southern Ocean?
> >
> > Gord #426 Surprise
> > (just back from the 2015 Misery Trip, not quite Southern Ocean but a good
> > facsimile...we made it back OK, broke nothing, nobody got hurt... My wife
> > is
> > annoyed with me for doing it... )
> >
> >
> > On 2015-11-01, 6:10 PM, "Wes Gardner via Public-List"
> > <public-list at lists.alberg30.org> wrote:
> >
> > > My mistake! You know I kept looking at my chainplate bolts and in my mind
> > > thinking "yup, those were upgraded to 5/16" because they were new and
> > > shiny....seems when I put the 7/16 wrench on the head of one, I realized
> > it's
> > > just a 1/4-20. Yeah, they are shoulder bolts (I believe I read that the
> > > originals were 1/4-20 but with thread the whole way), so they were
> > replaced,
> > > but not upgraded to 5/16. Furthermore, they set the bolts with the nut
> > on the
> > > chainplate end allowing the chainplate itself to bear on the threaded
> > part of
> > > the bolt before the shoulder started....geez, at least turn the bolt
> > around.
> > > My understanding is that most of these failure issues have been in shear,
> > > right?
> > >
> > > And when I looked really close, the bolts for the uppers are stretched a
> > > little bit.....hmmm
> > >
> > > I was going to bed the actual chainplate, where it contacts the knee, in
> > 5200
> > > as it will never need to be removed from the boat again. However, I'm
> > going to
> > > bed and seal the chainplate covers (mine has Shaefer cover plates) in
> > 4200.
> > >
> > > I'm also going to change out the backstay bolts as well.
> > >
> > > Can anyone add any helpful hints or "gotchas" specific to the Alberg 30?
> > >
> > > Wes
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-- 
Kris Coward					http://unripe.melon.org/
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