The AlumaTower Company ships a side brace with their crankups and strongly
recommends it's use. I have one on mine (I made my own brace however).
Jim W4LC
-----Original Message-----
From: Philip Florig [mailto:W9IXX@arrl.net]
Sent: Thursday, February 07, 2002 1:50 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Universal Freestanding Tower - Side note.
Hi,
Just to share some comments from two aluminum tower mfgrs.
I own a 40 ft aluminum tower that I have two Mosley tribanders on.
Originally on the flat roof at work here with guys and took down
as they put up a new roof. Moved to side of building and side
supported at abt 20ft level to the building. All has worked fine
so far. I will be taking down shortly for a move to Western NC
and had some questions as to putting up agn.
I called two mfgrs abt information on side supporting like the
Rohn towers. One mfg had no information and brushed me off.
The other was far more informative.
He said first do NOT side support an aluminum tower. OK for
steel but not for aluminum. Can free stand or guy and that's
it. He said that the aluminum has to flex like the airplane
wings. Since I don't know too much on this I just thanked
him. Now I am looking at my installation here and wondering...
FYI info to the group.
Would still be interested in comments on side supporting.
73 Phil
At 11:45 2/7/2002 -0500, you wrote:
>On 2/6/02 9:10 PM, Steve Maki at steve@oakcom.com wrote:
>
> >There is a big difference between "don't exceed the manufacturers
> >ratings" and "buy one heavier than you need". The problem with
> >aluminum is that it work hardens. If you load it near it's initial
> >max ratings, wind gusts over the years WILL cause it to fatigue and
> >de-rate, and eventually fail.
>
>Gosh, you're right, that's why aluminum airplanes are life-rated to only
>so many flights or years. Right?
>
>I'm sure many aircraft owners are still waiting for their 50+ year old
>airplanes to "work harden."
>
>Without proper maintainence, any structure will fail, even steel ones.
>
>Aluminum towers, properly loaded and properly maintained, should last
>just as long as aluminum aircraft.
>
>
>
>
>Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net
>Quote: "Not within a thousand years will man ever fly!"
> -- Wilbur Wright, 1901
>
>
>________________________________________________________________________
>Where do you get ICE bandpass filters & beverage matching boxes? The
>same place that pays for the hosting of this list: The eHam Store.
>Order online at http://store.eham.net.
>-----------------------------------------------------------------------
>
>-----
>FAQ on WWW: http://www.contesting.com/FAQ/towertalk
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-----------------------------------------------
Philip Florig e-mail:pflorig@ieee.org
PO Box 44 (or):W9IXX@arrl.net
Worth, IL. 60482 amateur radio:W9IXX
USA also:J3X-T30,31,32,33P
team member:AH1A-J3A
-----------------------------------------------
Metro DX Club club call:W9TY
Oak Forest, IL. qsl via W9IXX
-----------------------------------------------
________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
-----------------------------------------------------------------------
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
-----------------------------------------------------------------------
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
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