I have actually done this -- but I didn't drive until it broke. I just
gave it a little stretch. And it wasn't no. 8 wire!
Worked a treat, as our UK cousins say.
73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/
On 11 Feb 2016 16:34, 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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