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[TowerTalk] Copperweld stretch

To: <towertalk@contesting.com>
Subject: [TowerTalk] Copperweld stretch
From: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 9 Feb 2002 23:06:59 -0500
Copperweld will sproing into a snaggled mess 25 years from now if you
let it go, especially #12.

The answer for that stuff, which will stay up in the air forever, is

   NEVER, EVER let it out from under tension. Always keep it stretched
and under control. Never let the wire on the spool go loose either.


Great stuff. AWFUL to unsnaggle.

73 & GL,

Guy.

----- Original Message -----
From: "Chris BONDE" <ve7hcb@rac.ca>
To: "Jerry Kincade" <w5kp@swbell.net>
Cc: <towertalk@contesting.com>
Sent: Saturday, February 09, 2002 9:25 PM
Subject: Re: [TowerTalk] Copperweld stretch



Just a off-handed remark, but what would one of those torque wrenches
the
mechanics use for torqueing down engine heads do,  The torque
measurement
should give an indication of the stress/stain given to match that
required.
Chris opr VE7HCB

At 04:20 PM 2002-02-09 -0800, Jerry Kincade wrote:

>I'm replacing the cheesy wire on my 265' Carolina Windom 160 with #12
>CopperWeld, which I bought in a 500' coil from Davis RF (great
outfit, BTW).
>My prestretching method is tree trunk/chain/Klein grip on one end,
then 500'
>across the pasture at ground level to an anchor on the other end to a
Klein
>grip and comealong, crank down on it and let 'er sit overnight.
Problem is
>deciding when enough is enough on "cranking down" and time. Anybody
>experienced in stretching this stuff? Is overnight enough? Heck, I
can let
>it sit a week out there if need be. I want it nice and straight and
>prestretched, but don't want to push it to near failure. Don't have a
pull
>gauge, kind of wish I did now. Could have used the tractor but was
afraid of
>pulling the wire in two.
>73, Jerry W5KP
>
>
>
>
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______________________________________________________________________
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Where do you get ICE bandpass filters & beverage matching boxes?  The
same place that pays for the hosting of this list:  The eHam Store.
Order online at http://store.eham.net.
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________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes?  The
same place that pays for the hosting of this list:  The eHam Store.
Order online at http://store.eham.net.
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