I responded to this thread B-4
The tree can be used but IMO will not fly with a building permit application.
The tree anchor with the belly band ( around the tree with a loop of EHS)
is a bad idea.
the tree grows around the back side taught wire making it impossible to
determine it's condition . the lag screw !! ymmv !!!!
fixed eye anchor https://www.macleanpower.com/products/item.asp?ITEM_ID=2040
There are a few open screw thread each end with optional end choice.
as for drilling there a drills and extension that will DRILL completely
THROUGH the tree NOT around.
But this still will not pass any building permit situation .
Wayne W3EA
> To: towertalk@contesting.com
> From: K8RI-on-TowerTalk@tm.net
> Date: Sat, 26 Dec 2015 18:21:09 -0500
> Subject: Re: [TowerTalk] Rohn 25 Guying
>
> My observations:
>
> Even large trees are more prone to wind movement and damage than towers.
> Large Redwoods excepted.
> Mature trees like Oak and Ash appear to do well. Large, mature Oak
> normally have a long life. Willow trees? Not so much from a relative
> standpoint. The Willow is also flexible. There is large willow tree in
> my neighbor's back yard. Their back yard abuts to the S side of my back
> yard. I'd guess that tree is close to 4' across (diameter). A few years
> ago we had a severe thunderstorm come through with a large bow echo
> leading the storm. I was watching that tree from my garage's back door.
> As the wind increased I could hear that tree groaning from close to 150
> feet. The groaning kept getting louder and that 4 ft trunk was taking on
> a substantial lean. The groaning increased to sounding like a person in
> pain. With a loud loud snapping sound, that trunk appeared to be
> leaning about a foot only 4 or or 5 feet off the ground when the wind
> abruptly quit. Just as I thought it was all over for that tree, the
> tree snapped upright. It's awe inspiring to see a tree that large, bend
> that much.
>
> The Oak has a good root system holding it. The Ash? I don't know, but
> a large, mature Ash can be killed in a week by a relatively small bug,
> The "Emerald Ash Borer". There are few trees left from huge stands of
> Ash we had 20 years ago. I had 5 huge Ash that I used for antenna
> anchors. Those are all gone. There is one large Ash near the edge of the
> woods on the N side where I have a lag bolt with a forged eye to anchor
> one of my sloapers.
> A mature hardwood will not grow larger in diameter, BUT, it may see a
> lag bolt, or through hole as damage and form (I believe it's called
> bole) to cover the damage. Just pay attention and replace the lag bolt
> with a longer one if necessary. This applies to most trees and
> particularly trees that have not reached maturity. There is no excuse
> for the lag bolts becoming enclosed, or overgrown. It's a slow process
> and can be prevented with a little attention.
>
> Many trees live a relatively long time, but there is no guarantee.
> Disease, bugs, and nature ( wind, lightening, drought, and even low
> temps) can end that long life prematurely and sometimes,quickly.
>
> 73
>
> Roger (K8RI)
>
>
> On 12/26/2015 Saturday 8:50 AM, Patrick Greenlee wrote:
> > I have used trees for support but not precisely for 50 ft Rohn 25
> > towers. Avoid "girdling" the tree. Do not wrap cable or other
> > ligature tightly around the tree. use material like an old bike tire
> > or whatever to spread the load so the attachment cable or whatever
> > does not dig into the tree or over a few year's time become embedded
> > in the tree through new growth. The other tip that comes to mind is
> > to attach to the tree as low down toward the ground as practical so
> > the tree's motion in a wind is not sufficient to cause problems.
> >
> > I'm sure there are things I am overlooking but with luck other
> > respondents will cover the gaps I left.
> >
> > I hope you had a very merry Christmas and wish you the best in the
> > coming new year.
> >
> > Patrick NJ5G
> >
> > On 12/25/2015 5:05 PM, Tom W1ALZ Nicholson wrote:
> >> Has anyone used trees as guy anchors for a 50' Rohn 25 tower?
> >>
> >> If so what was your method of attachment?
> >>
> >> Thanks
> >> Tom W1ALZ
> >> _______________________________________________
> >>
> >>
> >>
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>
> --
>
> 73
>
> Roger (K8RI)
>
>
> ---
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