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From: Dave Kruger <dkruger_at_pacifier.com>
subject: [Paddlewise] Stiffness
Date: Sat, 15 Jan 2000 18:57:43 -0800
Below the sig is an exchange Matt Broze sent to me -- posted with his
permission.
 Heavily edited to improve readability.

-- 
Dave Kruger
Astoria, OR
--
> Matt Broze wrote:

> Corry Freedman of Spirit Line Kayaks
> (he makes the nicest Aleutian kayaks I have ever seen and paddled) made a
> fiberglass mold from one of his favorites with the idea of marketing it in
> fiberglass. I paddled both the fabric kayak and the glass version. While
> there was a lot of similarities (and some performance advantages to the
> stiffer kayak) there was one major disadvantage. The glass version had a
> very wet ride. The same shaped skin boat flexed and allowed the bow to rise
> with the waves so the water didn't easily wash over the front deck. The
> glass baidarka project was scrubbed. [snip]

> I did not do timed tests comparing the two kayaks but now I realize I missed
> my chance because one does not often find two nearly identical shapes made
> of different materials. Darn. The plastic versions of glass kayaks (which
> are numerous) are not the same for several reasons. The plastic shrinks
> about 4% when it comes out of the mold and also changes shape. Even two
> plastic boats out of the same mold are hard to compare because of this
> tendency of plastic to change shape as it is removed from the mold and
> cooled (and later due to storage and use conditions). While this is a
> private post I have no objections to it being made public.
> Matt Broze
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