[TowerTalk] Tower installtion question

[Joe Subich, W4TV]

I'd start by checking with an ARRL Volunteer Consulting Engineer.
The generic aluminum tower may be problematic if you do not have
specifications on the material.

BTW, I would never bury aluminum in concrete, find or make an
appropriate base section/stubs.

73,

   ... Joe, W4TV


On 2015-01-16 9:15 AM, bcarling at cfl.rr.com wrote:
> Many thanks for the explanation, Joe.
>
> In considering whether to forge ahead, do you have any suggetsions about finding some help
> making the claculations for this? It's a no name brand aluminum tower, 3 sections each 8
> feet long. 2-3 feet woul dbe burie din concrete, and about 4 feet of HD steel mast out the top.
>
> Brian
>
> On 16 Jan 2015 at 8:29, Joe Subich, W4TV wrote:
>
>>
>> Seminole County, FL was 100 MPH based on the old "fastest mile"
>> standard.  Without finding a new chart that uses "peak gust",
>> 139 MPH would seem to be equivalent.  Requiring the calculations
>> or a PE certification for building permit is within reason under
>> PRB-1.
>>
>> 73,
>>
>>     ... Joe, W4TV
>>
>>
>> On 2015-01-16 7:50 AM, bcarling at cfl.rr.com wrote:
>>> 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
>>>
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