Subject: Re: [baidarka] where do ribs break?
From: James Mitchell (mariner@seanet.com)
Date: Wed Sep 26 2001 - 23:37:51 EDT
I dropped Orca off my shoulder a couple years ago onto a log stair while
climbing up from the beach, and cracked the keel and four ribs. I paddled
her that way for four days in a seminar, then headed home to reskin and fix.
Now she has a new keel, four new ribs, new skin, and new graphics. Do that
with fiberglas! Greg Chew is now using her to replace his glass Shadow.
I think that the added weight of oak ribs does some nice things for Raven's
hull. It makes her more stable, having that weight down low like that.
----- Original Message -----
From: "wolfgang brinck" <nativewater@yahoo.com>
To: <raynalds@spiritone.com>; <baidarka@cyclone.muddypuppies.com>;
<baidarka-digest@paddlewise.net>
Sent: Tuesday, September 25, 2001 8:03 PM
Subject: Re: [baidarka] where do ribs break?
> I've broken ribs as well as hull stringers when
> colliding with hard objects on the shore. If you can
> avoid such collisions, you shouldn't experience any
> breakage. In all cases, the breaks didn't incapacitate
> the boat. The skin keeps the matrix of ribs and
> stringers in place so your boat doesn't unravel. In
> some cases I didn't even notice the breaks until I
> replaced the skin.
>
> The breaks that I did have were in relatively soft
> wood, red cedar stringers or willow ribs. I have one
> baidarka with oak ribs where I haven't experienced any
> breaks.
>
> Breaks tend to occur in the rounded parts of the hull
> or where the ribs are lashed against the keelson.
>
> If you haven't ribbed your boat yet, you might
> consider going with steamed oak or ash instead of
> wrapping individual ribs.
>
> Wolfgang
>
> Wolfgang
>
> --- David Raynalds <raynalds@spiritone.com> wrote:
> > I am building a baidarka from Wolfgang's book and
> > was wondering where ribs
> > have broken in other baidarkas. Is mostly breakage
> > caused by impact from
> > outside the boat or by ill fitting ribs or people
> > stepping on them. How
> > often do ribs break? Also where do they break, on
> > the curved parts or the
> > flat sections in the middle of the boat. I was
> > thinking of wrapping the
> > curved sections with thin thread before I varnished
> > or epoxied them. Would
> > this be worth doing? If they always break in the
> > middle flatter sections,
> > would a thread of fiberglass along the top or bottom
> > help strengthen them?
> > Anyway let me know what you have observed.
> > David Raynalds
> > http://www.spiritone.com/~raynalds/
> >
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