RE: Safety Fin

From: Ken Poulton (poulton@zonker.labs.agilent.com-DeleteThis.com)
Date: Fri Sep 27 2002 - 15:51:01 PDT


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Date: Fri, 27 Sep 2002 15:51:01 -0700 (PDT)
From: Ken Poulton <poulton@zonker.labs.agilent.com-DeleteThis.com>
Message-Id: <200209272251.PAA05778@zonker.labs.agilent.com-DeleteThis.com>
To: wind_talk@opus.labs.agilent.com-DeleteThis.com
Subject: RE: Safety Fin


> I'd like to know what is the lifetime of the rubbery thing on the mast base
> We french call it a "diabolo", I think some call it a universal (not sure)
> anyway I mean that black-funny-shaped-flexible part on the mast base

That part is usually called the "hourglass".

> I broke plenty of stuff but never that bit

Each time I rig I bend the hourglass and look for cracks. I make sure I
have several in the car so I can just switch to a good one when one
turns up cracked.

Despite this, I have broken three this year - Chinook had a bad batch.
Each time the webbing around the hourglass held fine and sailing in
was no problem.

> so I m not sure how often I should replace it

Seems like I usually get about 2 years from an hourglass.
In the bad batch, I got 1-10 sessions.

Ken Poulton
poulton@labs.agilent.com-DeleteThis.com

"Faster and faster, until the thrill of speed overcomes the fear of death."
                                        -- Hunter S. Thompson



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