[TowerTalk] 10 inch tube 100ft wind load? NN7J

[Dan Zimmerman N3OX]

>   I put your numbers into the calculator, just out of my own curiosity...
>
*snip*
>
>   It told me this:
>
>   Survival velocity = 38.9 mph
>   Failure velocity = 55.1 mph
>   Mast Weight = 1,415.29 lbs
>

In other words, it's not safe to put this tube up unguyed.  The Array
Solutions Big Berthas seem to have a pretty substantial stepped taper
to them and appear to be a couple feet in diameter at the bottom for
the 150 foot class.  Do you actually have this piece of pipe?  It
might work well as two 50 foot antenna supports instead.

Dan