[TowerTalk] Wall thickness?

[Jim Thomson]

Date: Sat, 14 Jul 2012 16:39:48 -0400 (EDT)
From: K7LXC at aol.com
Subject: [TowerTalk] Wall thickness?


Howdy -

I'm fixing a couple of broken F12 elements and need to know what the 
typical wall thickness is for normal aluminum antenna elements. It seems to 
me that 0.058" is a number I've seen before but want to confirm that. Tnx.

Cheers,
Steve K7LXC

##  I have the F-12 80m rotary dipole, their 3 el 40m yagi,  and 5 el 20m yagi, and their 6 el 15m yagi.... and all of em
use  .375” OD  x  .035” tips.  None of em vibrate at all, and zero tip failures.  The REST of the tubing on the 20 and 15m yagis is all .049”  wall. 

##  The .049”  wall is a  dumb idea, since what it goes into has to be swedged slightly.   If u stuff more tubing inside each other, for a bigger overlap,
the extra portion past the  3” long  swedge   is now hanging in mid air! 

##  Tubing come in .035”   .049”   .058”  and .065”   then .083”  etc. 

##  DX eng is super fast  with delivery, and well packed.   You can buy their tubing in either 3’  lengths  or  6’   lengths, at least for the .375”  diam stuff,
both come in .058” wall.  

##  3’ of .375”  OD  x 3’ long is $1.45          6’  of  .375” OD  x 6’  long is  $2.95 

http://www.dxengineering.com/search/department/rigid-tubing/product-line/dx-engineering-aluminum-tubing

The above is 6063-T832  alloy. 

Jim  VE7RF