[Elecraft] DIY Hard-drawn copper wire

[Dave Cole]

But the real question is:  

If the tree falls over, and no one hears it, did it really fall over,
and did the wire snap?

Sorry, I could not resist...
-- 
73's, and thanks,
Dave

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On Thu, 2016-02-11 at 14:34 +0000, Dauer, Edward wrote:
> In a recent post Jim, K9YC, suggested making hard-drawn copper wire
> for antennas by attaching a few hundred feet of bare copper wire to a
> tree or telephone pole at one end and to a bumper hitch at the other,
> then driving away very slowly until it snaps.  That sounded like a
> very attractive idea - much in the ham tradition.  I wondered,
> though, whether it could be done using a car without a bumper
> hitch.  The minimum breaking strength of number 8 hard-drawn copper
> wire (though it might be closer to number 10 after being stretched)
> is between 644 and 826 pounds, according to a chart I found on the
> Internet.  Rather than test it empirically with my 16-year-old SUV
> (no bumper hitch), I wondered what 700 or 800 pounds of shear force
> would do to an automobile frame, assuming attachment to a suitable
> bolt somewhere.  Or would the tree fall over first?
> 
> Ted, KN1CBR
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