Subject: Re: [Antennas] Telescoping Aluminum Tubing

Fri, 4 Jan 2002 11:54:49 -0800

I used to have a 50 foot 80 meter vertical made from
4 inch .050 wall aluminum irrigation tubing.  I was
able to walk that up by myself.  A 60 foot version
required a helper on the ground pulling a rope while
I walked it up.  It was mounted in a pivot on the ground.
I am building a new 60 foot vertical with 3 inch 
tubing to 30 feet and 2 inch above that.  I think I
can walk this up (if no wind).

BTW, if you have any wind, then it will either be
a lot harder or a lot easier, depending on the
direction of the wind :-)

Rick N6RK

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Jim Hill
> Sent: Thursday, January 03, 2002 9:35 PM
> To: [email protected]
> Subject: Subject: Re: [Antennas] Telescoping Aluminum Tubing
> 
> 
> Thanks to all for the useful information my post generated.
> Assuming I purchase 6' lengths of 6063-T832 drawn aluminum tubing (the 
> tubing where each size telescopes into the adjacent sizes) from Texas 
> Towers, how high a vertical do you think I could erect with one person 
> walking the tubing up and another person holding the bottom on 
> the ground? 
> If I purchased each size and telescoped them with a 1' overlap, I 
> calculate 
> I would have a 76' length.  Assuming the tubing didn't buckle, I think 
> erecting it would be a big problem.  I would like to be able to 
> erect an 80 
> meter vertical, which ideally would be around 60' high. Those of you who 
> erected 40' antennas,  could you have gone higher without serious 
> difficulties? What was the maximum size tubing you used?
> Thanks, Jim, w6ivw 
> 
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