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Re: [TowerTalk] Why a Prop Pitch?

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Why a Prop Pitch?
From: "Marc Wullaert ON4MA" <marc.wullaert3@pandora.be>
Date: Thu, 25 Jan 2007 08:52:47 -0000
List-post: <mailto:towertalk@contesting.com>
If I could fine them here in europe for a good price that shood be my
rotorsystem .

marc on4ma

----- Original Message -----
From: "Richard (Rick) Karlquist" <richard@karlquist.com>
To: "Jim Lux" <jimlux@earthlink.net>; <NPAlex@aol.com>;
<towertalk@contesting.com>; <w0tmm@yahoo.com>
Sent: Wednesday, January 24, 2007 8:08 PM
Subject: Re: [TowerTalk] Why a Prop Pitch?


> >
> > Just as a question, since I have my Baldor catalog handy, what is the
> > inside diameter of one of the telescoping tubular towers?  (i.e. how
> > small does the motor have to be?).   It might well be that a standard
> > Jim, W6RMK
>
> Not tubular towers, rather lattice type crankups.  UST has
> those dimensions on its web site.  For the "5" series towers,
> the max diameter is 8.25 inches.
>
> Besides this constraint, you would like to be able to get
> the rotor in from the side.  You can't drop it in the top
> (at least on my HDX5106), and it would be a major hassle
> to bring it up from the bottom, because you would have to tilt
> the tower over, remove the positive pull down stuff,
> stuff the rotor in the bottom past the positive pull down
> mount, and then reinstall the pull down.
>
> It turns out that you can disassemble a prop pitch into
> 3 pieces and get it in from the side, then put it back together
> again.
>
> Another approach used is to cut out a tower brace and replace
> it with a removable one.  I would hate to butcher a tower like
> this, unless it was just a Rohn 45 section.
>
> Rick N6RK
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