[50mhz] Tower Question

[N0PB]

Bob,
Here is some quick info that may help.
If I looked at the right antennas.
M2  6M5X = 2.2 sq ft
CC  13B2  =  1.8 sq ft
CC 719B   =  1.2 sq ft wind load
Total load of   5.2 sq ft
Rohn 25 spec for 70 ft 110 mph, no ice load, round element antennas, total 
load is assumed to be at the apex of tower.
Anchor points 56 ft from base center point. Guy attachment points at 32 and 
66 feet.
The rating is 8 sq ft.
Keep in mind that you will have the load on a mast rather than all at tower 
apex.
 If you drop wind speed to 90 mph the rating goes up to 9.6 sq ft.
I think it would handle it just fine.
Hope this helps.
73,
 Phil N0PB

----- Original Message ----- 
From: <W0DXZ at aol.com>
To: <50mhz at mailman.qth.net>
Sent: Sunday, March 04, 2007 7:55 AM
Subject: [50mhz] Tower Question


>I know that this is a 50 mhz group, but I have a tower question... we all
> have towers. I recently lost one in an ice storm... too big of an antenna 
> on a
> poorly guyed  lightweight tower. I want to put up ONE more tower in my 
> life, and
> not worry about it.
>
> I would like to put on that tower, a rotor, a 5 el M2 6M beam, a 13 el 2M
> beam, and a 19 el 432 beam.
>
> I am thinking of Rohn 45,,, 70 feet. I had previously used mainly Rohn 25,
> with good results.   (The one that fell over was not a Rohn 25, my Rohn 25
> stayed up)I can guy this new tower in three places, top middle, lower.
> Why would a person go to Rohn 45 over Rohn 25? Is it worth the expense 
> with
> the relatively small arrays I am putting up?  Sure would be easier to 
> climb.
> Suggestions?
> Bob in Iowa
> W0DXZ
>
>
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