In a message dated 10/1/01 12:09:44 AM Pacific Daylight Time, firstname.lastname@example.org
> Drilling holes in tubular tower legs at the base doesn't appear to me as a
> manufacturer-recommended practice. Holes in tube walls
> reduce the ability to tolerate stress/shear.
I think it's called a stress-riser.
Cheers, Steve K7LXC
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