Falling tower question

[Steve Sawyers n0yvy]

Scott Neader wrote:
> 
> >>       If I should ever lose a top guy wire or its anchor, should I expect
> >>to have the tower collapse instead of bending?
> 
> >      Interesting question.  According to the information that I've seen, a
> >guyed tower will fall typically within a circle around its base approximately
> >30% of its height.  It doesn't "fall over" because it is constrained, or
> >tethered, by the remaining guy wires.  Talk about a pile of scrap...
> >
> >    BTW, this probably shoots the heck out of tower building set-back
> >regulations.
> 
> So, what happens to a self-supporting tower when it decides to fall?  Does
> it typically stay within that 30% of height... or will my future tower hit
> my neighbor's house?   (just planning my answers when the neighbors start
> asking once I do choose a tower and put it up)
> 
> - Scott KA9FOX
> 
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Free Standing towers typically fall down wind as straight as a string.

Which is one of the main reasons I like guyed towers and keeping them 
50% of tower height plus the mast height away from the house. I do not 
want my towers in my living room or bed room.

Unless, of course, it is Rohn 25. That stuff is so light and flimsy, I 
have seen it fall on a chain link fence and not hurt the fence, but it
did demolish the tower.

de n0yvy steve

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