Not an expert either. I think this has come up before. As long as you
have the same amount of concrete or more at the describe depth you
should be ok.
J6/W0MU November 21 - December 1 2011 CQ WW DX CW
W0MU-1 CC Cluster w0mu.net
On 10/26/2011 11:28 AM, Richard Thorne wrote:
> I'm finally getting some dirt work done in the next day or two at my new
> place which will include holes/concrete for my 45g tower.
> I plan on using a pier pin install, so does it matter if the base is
> square or round? The rohn book calls for a 2' 6" square hole 4' deep
> (I'm designing the tower based on 90mhp winds with a height of 120').
> It would be easier to use a 36" auger to dig the hole. Since I'm going
> with a pier pin I don't see that there would be any twisting moments on
> the concrete base, it would only be there to hold the tower up. But I'm
> not an engineer, hence the question.
> Rich - N5ZC
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