[TowerTalk] guying temporary towers

[Roger (K8RI)]

K wrote:
> I would appreciate the plans on any portable tower made out of tubing either PVC or pump PIPE.   
>
>   
It's very much like the crank up pole shown in a link posted on here a 
while back.  I'll try to find the link, but I hope some one comes up 
with it.  I do have photos of the PVC pole from this years FD which I 
plan on putting up on my page.  He even had an inexpensive winch on the 
side and used poly rope.  The rope goes from the winch to a bracket 
mounted pulley on that section of pipe, then down between that section 
and the one inside. There is a pulley on the bottom of the inside 
section and the rope runs over it and up to the top of that section 
where there is another bracket mounted pulley where the rope runs back 
down to the pulley on the bottom of the next section.  This is just 
repeated with each section and provides a 2:1 mechanical advantage for 
lifting the sections.  Being PVC it of course does require guying and is 
more than a little flexible even with 3" and 4" schedule 40.

Roger (K8RI - ARRL Life Member)
www.rogerhalstead.com
N833R (World's oldest Debonair)