Re: [Paddlewise] PaddleWise V1 #646

I was not dodging the question just trying to explain the problem. If you
don't agree on what secondary stability is you can't measure it. Stability
can be measured using a torque wrench and a fitting that clamps to the boat.
Sea Kayaker magazine did it this way in their 1986  kayak tests. Now they
measure the shape and input that data into a computer program that claims to
draw a stability curve. I say claims because it doesn't look quite like the
previous torque wrench curves especially at very high angles of tilt.
Primary stability is measured by how much torque is required to tilt the
boat the first few degrees. I have never heard of a measurement of secondary
stability but I would love to hear about it if someone else has.
Matt Broze
http://www.marinerkayaks.com
-----Original Message-----
From: M. Wagenbach <wagen_at_u.washington.edu>
To: PaddleWise_at_lists.intelenet.net <PaddleWise_at_lists.intelenet.net>
Date: Wednesday, August 11, 1999 12:01 PM
Subject: Re: [Paddlewise] PaddleWise V1 #646


>Strictly speaking, Matt,  his question was not "What is primary/secondary
stability," but "How is it measuredd?"
>
>Is there an adapter to hook a torque wrench onto the bow of a boat?
>
>Mike Wagenbach
>
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