[TowerTalk] Installing HG52SS

[ve4xt at mts.net]

Hi Bert,
One element missing from the equation is the risk analysis: given the planned site for the tower, will it 
fall on anything? Is that anything yours, or a neighbours? Could it fall on people?

If the first answer is no, then the risk is largely to the tower and antennas.

But one thing that seems to stick out is the difference in windload: you say the tower is rated at 9.5 
sq.ft. and later you make reference to 15 sq.ft. Is that the windload you're planning? If so, you're 
increasing the risk beyond merely undersizing the base and hoping to make it up with guys. It looks 
like you're overloading the tower. Whether guys at 20 feet give you added windload is something only 
an engineer could explain.

And, consider this: an engineering analysis is going to cost you way more than the 1.7 yards of 
concrete you're saving. You could probably even pay for a backhoe to dig for you with what it would 
cost for a proper analysis.

I would suggest the choice is between sticking with the LXC prime directive and not installing the tower 
at all.

73, kelly
ve4xt


> 
> From: Lou Laderman <lladerman at earthlink.net>
> Date: 2008/08/12 Tue AM 09:15:46 CDT
> To: Bert Almemo <balmemo at sympatico.ca>,  towertalk at contesting.com
> Subject: Re: [TowerTalk] Installing HG52SS
> 
> Absent an engineering analysis that what you're proposing will be adequate, and that the streeses 
from the guys won't compromise the structure, I wouldn't deviate from the manufacturere's engineered 
foundation requirment. Too dangerous.
> 
> Lou
> 
> -----Original Message-----
> >From: Bert Almemo <balmemo at sympatico.ca>
> >Sent: Aug 12, 2008 8:32 AM
> >To: towertalk at contesting.com
> >Subject: [TowerTalk] Installing HG52SS
> >
> >Hi guys,
> >
> >I'm preparing to install a Telex-Hygain HG52SS, 3 section, 52ft,
> >crank-up/tilt over, tower. This is a self-supporting tower if you make the
> >base 3'x 3'x 6'. Windload 9.5 sq.ft.
> >
> >I want to make a less permanent installation as we may be out of this place
> >in a couple of years. Therefore I was thinking of making the base approx.
> >2'x 2'x 2' and guy the bottom section (3 or 4 guys) at 20 ft. I'm going to
> >use screw anchors for the guy wires. Sandy soil. Windload approx. 15 sq.ft.
> >
> >Ideas and comments greatly appreciated. Thanks.
> >
> >73 Bert, VE3OBU
> >
> >
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