> -----Original Message-----
> From: Rick Karlquist [mailto:richard@karlquist.com]
> Sent: Thursday, January 25, 2007 7:45 PM
> To: Jim Lux
> Cc: garyschafer@comcast.net; 'Chuck Lewis'; towertalk@contesting.com
> Subject: Re: [TowerTalk] Flexible coupler assembly
>
> >>Another thought on the subject: It may be more convenient to mount the
> >> shock
> >>absorber under the rotor between the tower and rotor.
> >
>
> I bought a used tower with an M2 rotor installed in it.
> It had a rubber shock mount system under the rotor.
> The rubber was all beat up and falling apart. I asked
> M2 about it, and they said that was kind of a failed
> experiment because the rubber only lasted 6 months.
> They said forget about it and go back to a rigid mount.
>
> I am wondering about these rubber donut things: how
> well does the rubber hold up in the sun? They never
> see UV in a car.
>
> Rick N6RK
I don't know about the UV properties of the donuts but I do know that the UV
will consume tires on a car. I have a car that sets in the same place in the
driveway most of the time with the right side exposed to the south sun
(Florida) and the other side is shaded by the house so no direct sunlight
hits the tires on the left side. After several years the tires on the right
side got badly weather cracked on the outside while the ones on the left
side remained fine. Also the inside walls of the tires remained fine where
direct sunlight never hit.
73
Gary K4FMX
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