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Re: [TowerTalk] flexible mast coupling

Subject: Re: [TowerTalk] flexible mast coupling
Date: Thu, 5 Apr 2012 14:35:40 -0400 (EDT)
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>  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!
Steve    K7LXC

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