I agree. There is not very good lateral strength in a ladder because there
is no diagonal bracing like most towers have. You need to think "triangles."
If it creates a triangle, in all planes, it's going to have strength. The
old "Dill" towers with horizontal "steps" had no sideways strength. Today's
Rohn has "Z" braces to form triangles.
Chuck
WB2EDV
----- Original Message -----
From: "Coy Hilton" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, August 21, 2005 3:10 PM
Subject: [Repeater-Builder] Re: Aluminium ladders as towers
> --- In [EMAIL PROTECTED], "Coy Hilton" <[EMAIL PROTECTED]> wrote:
> One addition, this is a single aluminum ladder.
>
>
>
> Well, This was shown in the 2000 ARRL hand book...sorry to say. This
> is a single aluminum ladder. It
> works fine for field day operation the photo shows an exstention
> ladder guyed at three points sitting in a hole dug about a foot deep
> to keep it from walking off in the wind. I can see this being done for
> a temperary setup but to use it as a commertial installation is
> shurely dangerous.
> Good luck Ian
> AC0Y
>>
>
>> --- In [EMAIL PROTECTED], Ian Wells <[EMAIL PROTECTED]>
> wrote:
>> > Hi guys .I have heard of a communication business here in australia
>> > useing ladders as towers .anyone tried this or know of any webpages
>> > They must either join two together with braces or four of to form a
>> > square which forms a free standing tower
>> >
>> > Thank you
>> > Ian Wells
>> > Kerinvale Comaudio
>> > mail service 1017,
>> > Biloela,4715.
>> > www.kerinvalecomaudio.com.au
>> >
>> >
>> >
>> >
>> > >
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> Yahoo! Groups Links
>
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>
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