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Re: re: counterweights



Hi Jon and all,

First I should clarify that I will be using two
separate rotors, with the AZ rotor being mounted
down in the tower. The vertical mast extending
above the tower will be several feet long with the
ELE rotor mounted on top, and the steel crossarm
and vertical supports in question mounted at the
bottom of the mast, right above the top of the tower.

The crossboom will rotate (on the elevation axis) inside
the pvc bearings that will be attached to the vertical supports.

I will be using a G-500A elevation rotor which is rated
at about #60 vert. load I believe.

73,
Gene





----- Original Message -----
From: Jon Ogden <na9d-2@speakeasy.net>
To: Gene Davies AA6NP <aa6np@mind.net>; <amsat-bb@AMSAT.Org>
Sent: Friday, March 07, 2003 4:32 AM
Subject: Re: [amsat-bb] re: counterweights


> on 3/6/03 8:56 PM, Gene Davies AA6NP at aa6np@mind.net wrote:
>
> > So I am adding this steel crossarm with vertical support arms to
> > take most of the weight off the rotor. Each support can be
> > shortened or lengthened for final adjustment, and the
> > counterweights for the dish will nest right in-between the
> > mast and the supports. I am going to try using an 1 1/2
> > pvc tee for the support to crossboom bearings, and make the
> > supports themselves out of 1" allthread or something.
>
> Forgive me for being dense at 6:30 in the morning, but I don't understand
> how this will work.
>
> If the vertical supports are going to take any pressure off the vertical
> loading of the rotor, they have to be fixed in place somewhere outside the
> rotor.  But then you can't rotate.
>
> I'd suggest getting a bigger rotor.  What kind are you using?
>
> 73,
>
> Jon
> NA9D
>
> -------------------------------------
> Jon Ogden
> NA9D (ex: KE9NA)
>
> Citizen of the People's Democratic Republik of Illinois
>
> Life Member: ARRL, NRA
> Member:  AMSAT, DXCC
>
> http://www.qsl.net/na9d   <- Updated on 1/22/03!!!
>
> "A life lived in fear is a life half lived."
>
>
> ----
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>


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