[TowerTalk] guy posts math

[john at kk9a.com]

Why does he want them this high? To do it correctly the post and concrete
need to be professionally engineered.  According to mechanical engineer
K5IU, elevated anchors require many yards of concrete per anchor and a lot
of steel.  They are expensive! I used 4' high anchors made from I-Beams at
my P40A QTH when I needed them to clear the house roof. I use Rohn buried
anchors at my home station and the guys wires are only low close the anchor.
I do not see this as an issue. I can easily cut the lawn around the anchors
and cables with my John Deere zero turn 72" mower and the anchors are not in
an area where anyone normally walks.

John KK9A


To:	"towertalk at contesting.com" <towertalk at contesting.com>
Subject:	[TowerTalk] guy posts math
From:	Lee George AK4QA <ak4qa at msn.com>
Date:	Thu, 16 Jul 2015 15:34:01 +0000


Does anyone have a the formula for guy posts?  
I have a friend that wants tall guy posts (7 feet) for a 100 foot tower so
he 
can walk under them.  I need to show him the stress that is involved in that
as 
opposed to 2 feet out of the ground.
I've always used the wooden pole rule of thumb; for every foot up you need 3

feet down.
Also, if you have the calculation for the back guy (i.e. earth screws) well
my 
friends, that would be gravy on my biscuit!
All the best and 
73,LeeAK4QA