On Feb 6, 2:01*pm, Bert Hyman wrote:
ichard Clark

wrote:
On 06 Feb 2011 15:58:26 GMT, Bert Hyman wrote:

For a short run (just a few feet), would there be any significant
difference in bending resistance between a length of the thick wall
stuff and one made from two nested thin wall lengths?

Hi Bert,

Probably not, but what is on either side of this "short run" that
loads this run with stress?

The rest of my antenna :-) About 25 feet of more aluminum.

It's actually a Hy-Gain AV-640, and the base tube is made of two nested
pieces of .058" tubing, but it's only a foot long, and I'm considering
some mounting options that would require a longer section that I'd have
to make out of stuff I can buy easily.

Is this a vertical run, or horizontal run?

It's vertical.

--
Bert Hyman * * *W0RSB * St. Paul, MN *

Hi Bert, I had a similar issue, filled the center of the tubing with
hardwood dowl. The rod I used was for a curtain or closet. I survived
a hurricane and a tornado that took off a good part of my roof. Not
only does it add strength but it keeps the aluminum from collapsing.


Jimmie


Jimmie