> As I see my stack of beams swinging back and forth in the wind I am
thinking about adding a flexible shaft coupling above the rotor
to absorb the shock, I have read somewhere about using automotive drive
shaft flex couplings and adapt them to clamp on to
our 2" masts. I used to have one of Bill Orr, W6SAI books on antennas and
if I remember right he used one for a Volvo, and it
had a rubber donut between two flanges. Anyone make a flexible coupler
for their mast and would share what you used ?
It was actually Dave Leeson, W6NL, ex-W6QHS, and it was in his book
"Physical Design of Yagi Antennas." I recall he used a BWM coupler part. Of
course at his hilltop QTH above Los Gatos the winds occasionally hit 140 MPH!
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