[Alberg30] DECK BEAM REPAIR

[Mike Lehman]

Paul, To answer your question, there are two plates, one on the forward side
of the beam and the other on the aft. Using the same bolt holes, I through
bolted the two plates together and at the same time increased the bolts from
1/4" to 5/16". The mast sits mainly on the after part of the beam and
usually twists back leaving a depression on the deck behind the mast. That's
one way to tell it you have a problem, or the start of one. The glue that
Whitby used to laminate the beams gives up over time and the beam itself
delaminates causing it to crack [sometimes dramatically] and happens mostly
to boats that are raced hard in heavy weather with excessive amounts of
sail. But the beam can crack even in a "cruised only" boat once the glue
gives up. When you can't close the door to your forward cabin, then you know
the beam has deflected.

Mike Lehman
840 Mill Creek Road
Arnold, MD 21012
(410) 544-9067 (Home)
(443) 253-7054 (Mobile)

sail_505 at hotmail.com

----- Original Message -----
From: <RABBIT649 at aol.com>
To: <public-list at alberg30.org>
Sent: Monday, March 26, 2001 4:48 PM
Subject: Re: [Alberg30] DECK BEAM REPAIR


> Hi Mike,
>     Beautiful repair and thanks for taking the trouble to post the
picture.
>     I was wondering: could I put the brace on the other side of the
bulkhead
> in the forward cabin or is that too far forward to provide support? The
> reason is this is really a preventive measure on a beautifully laminated
> wooden brace that doesn't show much deflection at all. I don't think the
boat
> was raced much because there isn't that much of an Alberg presence up here
in
> NY. I just didn't want to obscure the lamination if I could avoid it. But
if
> the sister brace won't do its job forward then I guess I have to.
>     What do you think?
> Paul Cicchetti
> #23 Ashwagh
>
>
> In a message dated 3/26/01 8:17:33 AM Eastern Standard Time,
> sail_505 at hotmail.com writes:
>
> > Subj:  Re: [Alberg30] DECK  BEAM  REPAIR
> >  Date:    3/26/01 8:17:33 AM Eastern Standard Time
> >  From:    sail_505 at hotmail.com (Mike Lehman)
> >  Sender:  public-list-admin at alberg30.org
> >  Reply-to:    <A HREF="mailto:public-list at alberg30.org">
> public-list at alberg30.org</A>
> >  To:  public-list at alberg30.org (Alberg Public List)
> >
> >  File:  1 Port Aft.JPG (5781 bytes)
> >  DL Time (28800 bps): < 1 minute
> >
> >
> >
> >  --------------------
> >  Tony Fortnam (Valency #272) purchased 3/8" Aluminum plates from
Washington
> > Aluminum Co. In Baltimore (410) 242-1000 ext 301 ask for Kirk. The
plates
> are
> > made from 6061 grade aluminum and are cut using a computerized water jet
> > cutting process and therefore a very even cut. I installed them, and
found
> > that I had to do some "final fit" like rounding edges and corners. This
was
> > done easily with a 3" belt sander. The finished job give the appearance
> that
> > this was an original part of the boat instead of an aftermarket repair.
See
> > attached photo.
> >
> >  Mike Lehman
> >  840 Mill Creek Road
> >  Arnold, MD 21012
> >  (410) 544-9067 (Home)
> >  (443) 253-7054 (Mobile)
> >
> >  sail_505 at hotmail.com
>
+---------------------------------------------------------------------------
+
>  | Rough conditions in the Southern Ocean. Read about the brutal
challenges. |
>  |
http://service.bfast.com/bfast/click?bfmid=22673860=32743498=bt_challenge |
>
+---------------------------------------------------------------------------
+
>
> _______________________________________________
> Public-list mailing list -- Public-list at alberg30.org
> http://www.alberg30.org/mailman/listinfo/public-list
> To unsubscribe: email to Public-list-request at alberg30.org
> Include command "unsubscribe <password>" in subject or body.
> Use command "help" for more options.
>
>
 +---------------------------------------------------------------------------+
 | Rough conditions in the Southern Ocean. Read about the brutal challenges. |
 | http://service.bfast.com/bfast/click?bfmid=22673860=32743498=bt_challenge |
 +---------------------------------------------------------------------------+

_______________________________________________
Public-list mailing list -- Public-list at alberg30.org
http://www.alberg30.org/mailman/listinfo/public-list
To unsubscribe: email to Public-list-request at alberg30.org
Include command "unsubscribe <password>" in subject or body.
Use command "help" for more options.

 985647626.0