[TVARC] Flagpole Wind Load

[John Ellis]

Rick,

As of Sunday evening which is when I am
writing this, the storm is inching it's way
closer. I'll know tomorrow morning if we
will pull ours down. Since you have that
DX Engineering tilt over base, I would do
it. Remember you can put it back up very
easily but it would be more of a pain in the
butt to replace it. Another thing to consider
is not so much the wind, but the stuff that
may fly into it.

Pull it down!

73,
John, NP2B

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On Sun, Aug 27, 2023 at 8:43 PM Rich Erlichman <rich.erlichman at gmail.com>
wrote:

> You answered part of your own question with the tilt-over base. Makes for
> it being very easy to lower it to the ground and due to the severity of any
> given storm you can either leave flat on the ground, or disassemble it and
> secure it in your garage.
> I use the NOAA warnings as a guideline for taking it down or leaving it
> up. If you have a "Tropical Storm" (>75 mph) or worse coming towards you, I
> would secure it in the garage. The last two storms that even came close to
> our area, were not close enough for me to take mine down.
> I did have a windstorm in our area this past June and I was away at the
> time. Sure enough Murphy's Law played its part, and caused my Cobweb to
> come down below the tiltover section. My own fault for not using a strong
> enough lower mast section from the ground. My flagpole/antenna made it with
> no issues.
> Having had a 6BTV years ago, and knowing the rigidity (or lack of) in the
> PVC, I would watch out for winds greater that 50 mph.
>
> 73, Rich ND4G
>
> ------ Original Message ------
> From rick at kd9my.com
> To TVARC at mailman.qth.net
> Date 8/27/2023 4:03:20 PM
> Subject [TVARC] Flagpole Wind Load
>
> Hello all,
>
> I finally got my 6BTV installed this week and disguised as a flag pole
> (2-1/2” pvc).
>
> Ground plane is a combination of radials and 45 sq ft of ground screen
> bonded to an 8’ driven ground rod at the base.
>
> Preliminary testing shows good results on FT8.
>
>
>
> My question is:
>
> Do others lower the antenna/flagpole when high winds are predicted?  If
> so, what speed?
>
> The whole thing does move around a little with the wind.
>
> I used the DX Engineering tilt over base so, it won’t be  hard to fold
> over if needed.
>
>
>
> Thanks,
>
> Rick KD9MY
>
>
>
>
>
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-- 

John Ellis         (NP2B)
1149 Mockingbird Lane
The Villages, FL 32163

telephone 352 633-2910
facsimile  352 633-0401
mobile     340 513-4928
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