On 7/29/2010 11:20 PM, Wilson Lamb wrote:
> I have seen some surplus irrigation pipe very cheap. I think the 3" is
> about 0.06 wall and there may be a heavier one, maybe 0.09.
It sounds a bit light to me. I use 0.120, 0.125. and even 0.188 wall
for typical booms. BUT it depends on both how long a boom and what you
are going to hand on to it. I don't know what alloy they use for
irrigation tubing, but structural is typically 6061-T6.
0.120 is not all that common except in 6' and maybe 12' lengths. It's
nice as the consecutive sizes will telescope together without binding.
I have seen a number of articles on using irrigation tubing for
verticals. I don't recall any for Yagi construction.
> I have no idea if this would be strong enough, but it's certainly nice
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