Ed Smith wrote:
> I take a 12 inch length of the pipe, remove .3 inch along the length,
> insert 6 inches into each pipe and attach with about 16 1/8 inch dia
> aluminum pop rivets. The resulting pipe is smooth and strong enough for
> one man to push up 63 feet, alone. I also install 3 larger rivets and
> angles for guying. I do this at two levels with 1/8 inch delrin and it is
> very sturdy. I have had no problems with ice retention or high winds.
>
> 73,
>
> Ed Smith W4EDS
> Spencer,VA
Internal insertion designs can work well for new, undamaged pipe.
Where they become problematical is if the pipe is used and has
"grunge" coating the inside and has a few dents in it.
Rick N6RK
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