[TowerTalk] Tower installtion question

[Joe Subich, W4TV]

> ## Do they want your living room windows to survive a 139 mph wind
> too ??

Yes.  140 MPH is "Miami-Dade" specifications for windows, doors, etc.
and is incorporated in the building codes of most of Florida these
days.  Seminole Country, FL is no different.  The insurance industry
has pushed that on a growing part of Florida following hurricane Andrew
and every other major hurricane for the last 30 years.

Unfortunately, building regulations have stupidity built in ... like
tile roofs that act like an fission reaction (when one tile breaks it
creates shrapnel that breaks five or six more tiles resulting in the
loss of tiles in an entire neighborhood <G>).  Applying the same 139
MPH standards to a 50 foot tower surrounded by trees and tow story
homes as applied to 1500' commercial towers is a bit absurd but that's
the rule statewide.

73,

    ... Joe, W4TV


On 2015-01-16 12:23 PM, Jim Thomson wrote:
> Date: Fri, 16 Jan 2015 07:50:54 -0500
> From: bcarling at cfl.rr.com
> To: towertalk at contesting.com
> Subject: [TowerTalk] Tower installtion question
>
> Greetings,
>
> My local city Building Department wants me to prove that my proposed (24 foot) tower
> installation with a 3 element beam for 17m & 12m can withstand 139 mph winds before they
> will issue a permit.
>
> Does this sound even remotely reasonable and compliant with PRB-1 ?
>
> Thanks for your views - Brian Carling AF4K
>
> ##  Do they want your living room windows to survive a 139 mph wind too ??
> Every tree in the neighbourhood would come crashing down, and u would have zero
> shingles left on your roof.   Your fence would be half a mile down the street, and your
> car would be flipped over in the driveway.  Your roof would be ripped right off.
>
> ##  What happens when trees  topple your 24 foot tall tower ?   Do they also want the
> 3 el yagi to be able to survive 139 mph wind too..or just the tower + mast ?
>
> ##  I can see where they could then make a case for the yagis  to handle 139 mph.
> If the 150-200 lb yagi came crashing down..onto philystran guy wires, it would slice em
> in half.... bringing the tower down.   In effect, they are doing an end run... effectively
> banning all ham towers.   Once they have effectively gotten rid of new ham installations,
> word will spread to other towns nearby..as Mayors like to brag about this stuff.  The other’s
> will follow suit.   “want to get rid of ham towers...just impose a MIN 139 mph rating on their
> tower, ants, mast,coax, guy wires, rotors, and anything else you can think of. “
> Bye-bye ham radio.
>
> Jim   VE7RF
>
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