----- Original Message -----
From: "doc" <kd4e@verizon.net>
To: <TowerTalk@contesting.com>
Sent: Saturday, January 29, 2005 3:17 PM
Subject: [TowerTalk] Re: Rohn 25 -- Semi- FreeStanding & TiltOver?
> Blake Bowers wrote:
> > Page 25G-1, and page 25G-2 of the Rohn consumer catalog.
> > Their design charts, their design drawings.
>
> This is very interesting.
>
> I am planning a 4x4x4 concrete pad with three sections
> of Rohn 25 in it.
>
> Two sections (A & B) will be offset in height from the
> other one (C) so as to overlap the joints for strength.
>
> A B
> ______ _____
> \ file://--\\ /
> \--//____\\--/
> C
>
> Tower C will be approx. 50 feet, A & B approx. 30 feet.
> I am estimating that I can go another 10 feet above C
> and put a standard HF tri-band beam, and a VHF-UHF
> log-periodic up there.
>
> I may side-mount a couple of antennas on A & B.
>
> A & B, in additional to providing structural strength,
> will provide strength when I fold over C using Hinged
> Base Plate BPH25G (not sure how to snuggle A & B up
> to C with the plate in the way) or the two 7" swivel
> sections I have that I do not see in the catalog (the
> bottom half is a pair of 3.25L x 1.25W x 3/16" Thick
> steel with 1/2" holes for a bolt-axle, the top halves
> are 5" of tubular tower leg sections, 1.4" of the wide
> tower section welded between the steel bolt-axle legs
> and 3.75" of the narrow connecting tower legs above
> that & drilled for the normal pair of bolts).
>
> If I haven't drawn the most confusing word-picture
> ever perhaps someone know the part number for these?
>
I'm not sure if it would achieve what you're trying to do, but why not put
the 3 sections in a triangular arrangement (so it would look like a 3
pointed star, with a triangular space in the middle), rather than in line?
Off hand, it would be more symmetrical, and probably stronger.
_______________________________________________
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Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
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