This subject's been beated to death before, but I also subscribe to the "no
pin" theory of Advanced Avoidance of Rotor Replacement. I can realign my
beams in fifteen minutes, but swapping out the rotor takes a lot longer, and
costs more.
If you want to also avoid torque stress on the tower, use a CD45-II or
something. No brake, the antennas freewheel by spinning the rotor until
they provide the minimum windload, kind of like a weather vane...doesn't
seem to hurt the rotor (much) and is very easy on the tower welds. When the
wind stops, you don't even have to climb the tower to realign the beams,
just push the lever in the shack. The drawback is that of course the rotor
does eventually fail (gear grinding)...
-WB2WIK/6
"If everything seems under control, you're just not going fast enough." -
Mario Andretti
> -----Original Message-----
> From: Mark . [SMTP:n1lo@hotmail.com]
> Sent: Monday, November 18, 2002 9:56 AM
> To: towertalk@contesting.com
> Subject: Re: [Towertalk] tower mast = to pin OR not to pin
>
> << Obviously , this might stress the rotor given high winds - but it is
> unlikely the yagis would rotate on the mast.>>
>
> << Josh....looks like you answered your own questions....I think the
> answer
> amounts to asking yourself which you would prefer doing (presumably after
> a
> big wind):
> a) replacing a broken rotator
> b) loosening the clamps and turning the mast back to where it was ..SNIP
> >>
>
> I subscribe to the 'not pin' group, and performed option b) above after
> hurricane Bonnie's 60 mph winds. All I had to do was realign the mast in
> the
> rotor about 15 degrees.
>
> --...MARK_N1LO...--
>
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