[TowerTalk] Tower Wind Calcs

[Richard Karlquist]

> Is there someplace I can download the method of doing this.  I am
> hoping I may be able to do the calculation myself and find a P.E. who
> will recheck my figures and sign off on it for less than U.S. Towers
> wants to charge me.  I have an EE (1965) and a IE (manf) (1989) and
> think I would be able to do the numbers if shown how to do so.  I have


I have the calcs from my MA-550 tower.  I suppose you could
start with those, and simply change the numbers as appropriate.
I'm also a EE and I'm pretty sure I could rework the calcs to 90 MPH.
However, I think it is rated at almost no antenna at all at 70 MPH.
I see no way it would make 90 MPH all by itself with no antenna.
Perhaps the MA-40 is somehow more sturdy, but I doubt it.

Rick N6RK