[Public-List] Chainplates

Jonathan Bresler via Public-List public-list at lists.alberg30.org
Thu Nov 5 12:14:07 PST 2015


You are correct.
It was the 2013 Rankin, not the 2012 Rankin.
My error.

Jonathan

On Thu, Nov 5, 2015 at 3:12 PM, Kris Coward <kris at melon.org> wrote:

>
> 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/
> GPG Fingerprint: 2BF3 957D 310A FEEC 4733  830E 21A4 05C7 1FEB 12B3
>



-- 
Jonathan M Bresler
Alberg 30 #262
Annapolis/Eastport MD



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