Stitch & glue outrigger to glass inside or not?

Discussion in 'Multihulls' started by erikhaha, Jun 12, 2010.

  1. ancient kayaker
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    ancient kayaker aka Terry Haines

    Gentlemen: please take it outside, or at least to the PMs! I thought the message about highjacking other peoples' threads was out by now!
     
  2. Chris Ostlind

    Chris Ostlind Previous Member

    Well, it did get a bit astray there, sorry. But, I do think that the penetration sub-topic was worth exploring.
     
  3. hoytedow
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    hoytedow Carbon Based Life Form

    That was a lousy thing to say. I hope you get hemorrhoids.
     
  4. hoytedow
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    hoytedow Carbon Based Life Form

    You really shouldn't support such a racist(regionalist?) comment.
     
  5. cavalier mk2
    Joined: Mar 2010
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    cavalier mk2 Senior Member

    One thing to watch with epoxy coatings is that no additives have a structure or composition that encourages moisture wicking through the film. Another thing to watch out for are weakened mechanical properties caused by additives. Additives could be considered thickeners/particles or thinners/ chemicals. Just like paint read the labels!
     
  6. Chris Ostlind

    Chris Ostlind Previous Member

    Well, Reuben was just kidding in his Aussie way and comedy sometimes stings a bit. He's a good guy, so I wouldn't read too much into it as mean-spirited.
     
  7. erikhaha
    Joined: Sep 2007
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    erikhaha Junior Member

    Wow?

    Just an observation/comment about something that ancient kayaker said and what I have also seen other repeat before in this message board.

    Basically that I should do whatever the designer said or get the designers input before changing his design.

    First, I did't change his design at all. I built the main hull from the specs he published in his book, then everything else that I did was either my own or taken from other designs/ common practices.

    Don't take offense to this, but this isn't rocket science, it is a simple vessel. As a practicing structural engineer I think I have a pretty good grasp of forces, reactions and load paths, not to say I know everything, but as I mentioned before this is a relatively small craft.

    Yes, I come on this board for advice, in addition to some commical threads, and I try and learn from others mistakes so I do not make them myself.

    I understand that reasoning behind not straying from a designers plans for larger craft, or if the builder does not have much experience or mechanical abbility, but in this case I do not see a problem.

    Thank you though for the information.
     
  8. hoytedow
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    hoytedow Carbon Based Life Form

    I really don't wish hemorrhoids on anyone(almost), but to label everyone from America or Germany as arrogant is, well, ignorant.
     
  9. redreuben
    Joined: Jan 2009
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    redreuben redreuben

    Lighten up hoytedow ! It was tongue in cheek, playing on the stereo type.
    But for the record "I sincerely apologise to any Americans or Germans and anyone else who has been offended by my comments"
    "And from this point on I shall refrain from trying to inject any light hearted humour into threads that descend into petty escalation's of one-upmanship!"
    RR.
     
  10. apex1

    apex1 Guest

    In busy weeks we do 3 or 4 .......but how would you ever understand what "boatyard" could mean?:p

    ...and how did you calculate "a few thousand" divided by "over 35" years?

    ...sometimes it is better to keep the dumb mouth shut, isnĀ“t it?:D :D :D
     
  11. ancient kayaker
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    ancient kayaker aka Terry Haines

    Hmmm! I average one boat a year ... problem is, they won't go away because I can't bear to sell them, evey one has a memory or a lesson, so now I had to build a storage rack for them in the backyard. The workshop is now nice and clear. Enough room to ... now why did I move them out of there? Oh yeah! To build more ...

    Boats are like rabbits: OK if you stop at one but ...
     
  12. hoytedow
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    hoytedow Carbon Based Life Form

    Apology accepted.:cool:
     
  13. ancient kayaker
    Joined: Aug 2006
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    Location: Alliston, Ontario, Canada

    ancient kayaker aka Terry Haines

    It's pretty difficult to offend Canadians, we have such a low opinion of ourselves, so you can safely leave us off the list. Eh? Sorry.
     
  14. hoytedow
    Joined: Sep 2009
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    hoytedow Carbon Based Life Form

    That's funny. With a couple of recent exceptions, I have held Canadians in pretty high regard. Of course, I watched the old Sergeant Preston series as a little kid and may be slightly brain-washed. If they did that series today, he might have a nipple-ring. :)
     

    Attached Files:


  15. Tom.151
    Joined: Jul 2009
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    Tom.151 Best boat so far? Crowther Twiggy (32')

    I can't build 57.142857+ boats a year ;) but I do have to repair the ones I do build. That's part of what some of the folks contributing here are coping with in their own way as they offer their experience. The strip planked vaka will be many times more resistant to serious rot/decay than the plywood with its cross-grained plys providing channels for the rot to spread in both directions.

    From my own experience only (northern and southern climes) plywood is a very short-lived material in a marine environment. If you are a cruiser, then you might have seen the learned sailors (of plywood boats) rise early in the morning to dip up buckets of salt water to use to wash the fresh water condensation/dew off of their decks. Bill Clinton would have said "It's the fresh water, stupid." Salt water is not your enemy - we used to put rock ssalt in the bilges of our fishing boat during the winter layup to insure that any rain water or snow melt that got inside the boat was transformed to salt water.

    Yes, the 1/4" ply sided amas are more than 'strong' enough - not much question there, but their longevity is more the issue than the engineering. It's my opinion, based on my own experience, that for plywood joints it is important to tape inside and outside in order to strengthen the joint past the point where normal flexing cannot develop micro-cracks that will allow water in and the decay to begin. Glassing the mostly flat areas inside the hulls would add little to the longevity - as long as a very good epoxy coatting job is done.

    The earlier link to EpoxyProducts is interesting, but to me to work he did in actually testing water absorption is more valuable. See his additional page at http://www.epoxyproducts.com/woodseal.html for the test data - quite revealing in light of the 'penetrating' discussion earlier in this thread.

    BTW, nice job on the boat, love the main hull build!

    Cheers,
     
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