I believe that may be a giant leap you are making to assume that the
top of the 45G will support 20 square feet in a 90 mph condition. If
you are going to make a leap like that, why did you not address the
loading of the various feedlines Rohn allows for on their design?????
Personally I would be very scared to make that quantum leap and
assumption because I do not believe it is correct.
73,
J. Leon Pringle, Jr. W 5 N A
----- Original Message -----
From: "Jeffrey Okamitsu" <x703jko@starpower.net>
To: <force12talk@qth.com>; <towertalk@contesting.com>
Sent: Tuesday, October 23, 2001 8:13 PM
Subject: [TowerTalk] Maximum Wind Load on Rohn 45G Towers
>
> Thanks for reading this email.
>
> I am in the process of putting up two 130 foot Rohn 45G towers as
per
> Rohn's 90 mph specifications. Maximum allowable projected area at
the
> top of the tower, as specified by Rohn, is 12.3 square feet for
round
> antenna members.
>
> The question I have is this: if you read the notes in the
engineering
> drawing for the 90 mph specs, it states (note 4) "Tower designs
include
> three side arms, symmetrically placed, having a total effective
> projected area equal to 8.0 square feet."
>
> Does anyone agree with my conclusions that this implies that if the
side
> arms are NOT used, the maximum allowable project area at the top of
the
> tower is actually 20.3 square feet?
>
> Let me know what you think.
>
> 73...Jeff, KN2R
>
>
>
>
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>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
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>
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 100 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
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