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68706Re: [bolger] Good thing that pretty horse broke my leg, saved me from the Czar's army. [1 Attachment]

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  • John Boy
    Sep 4, 2012
      Looks like a single point failure like the way a fishing pole breaks. :(  You might be able to slap together a laminated one to finish the season, but I'm thinking you're going to have to make a new one.  Looks like a butt splice isn't the way to go one a BM mast.  
      John Boy

      “Seaward ho! Hang the treasure! It's the glory of the sea that has turned my head.” 
      Robert Louis Stevenson, Treasure Island

      From: Mark Albanese <marka97203@...>
      To: bolger@yahoogroups.com
      Sent: Tuesday, September 4, 2012 4:49 AM
      Subject: [bolger] Good thing that pretty horse broke my leg, saved me from the Czar's army. [1 Attachment]


      In the half dozen times or so out getting acquainted with my boat,
      there've been no troublesome sounds from the mast. John Kohnen warned
      it was fatally flawed though, having tried a first repair wrapping it
      in fiberglass. I dumped must have been 4 ounces of T-88 into the
      pretty good crack that persisted.

      While moving the boat around with the 20' mast up we tapped with its
      tip the very end of no more than a 2" branch. That sent a shock right
      to the base, slicing it off more or less cleanly as shown. The long
      part hopped to the side, then fell right over.

      You can see how it's made. A birdsmouth with a lower taper wrapped
      separately around a timber that's both plug for the upper part and
      its heel. I can tell you it's a very neat job.

      I don't know what fixing this right would actually be, short of
      reduplicating it all. The best I can do in wood is clean it out, then
      use one double tapered timber to fit the sockets. Or burn this foot
      and make a new four inch one with an extension lathed off to recore
      the mast itself. But the joint of either is going to be weak still.
      I'm thinking all sorts of vague, crazy ideas like abs or steel cores
      and jackets, just to save the season.

      Guess if your going to have a boating accident, land is the place to
      have it.

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