I had the same problem with the A3 that I used as a temporary antenna at
P40A. Most of the time it held together for a week in the wind but
definitely tightening too much just crushed the boom. The element clamps
seem OK. I am not sure what aluminum Cushcraft used but I am sure changing
the boom to 6061-T6 would solve the problem or perhaps if the ID is a common
size you can insert it with some smaller 6061 tubing.
John KK9A
Subject: [TowerTalk] Spun director
From: "Mike Smith VE9AA" <ve9aa@nbnet.nb.ca>
Date: Sat, 17 Feb 2018 12:30:14 -0400
My ancient A3S (which I think I may have bought from VE9HF 25 yrs ago; and
it was old when I got it) keeps spinning the director. No matter how many
times I tighten it - we get a good wind and there it goes. It's currently
almost vertical.
Has anyone had any luck putting a hardwood (or PVC?, or other?) plug in the
end of the boom and tighten'r down against that and had this fix actually
work?
I feel the drinking straws at MacDonalds are likely thicker than the booms
on these old Cushcrafts, so I think that's really the problem.
I think it's a little bit out of warranty ;-) hee hee
Ideas?
Mike VE9AA
Mike, Coreen & Corey
Keswick Ridge, NB
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