What is the wall thickness of the mast?
Chris
KF7P
On Nov 26, 2013, at 1:33 PM, Rex Turvin wrote:
> My mast is 2" OD 6061 AL 12' The antenna is a Force 12 "DX'er" 15/17/20m
> tribander 56lbs and 8.51 sq ft windload with future plans to install a
> 10/12m antenna above it.
> 73 NR6M
>
>
>
> ex: KF7NMD
>
>
> Sincerely,
>
>
> Rex Turvin
> www.nr6m.com
>
>
>
> ________________________________
> From: Wayne Kline <w3ea@hotmail.com>
> To: Rex Turvin <turvin2009@yahoo.com>; "towertalk@contesting.com"
> <towertalk@contesting.com>
> Sent: Tuesday, November 26, 2013 1:04 PM
> Subject: RE: [TowerTalk] Rotor location
>
>
>
> My first question to you is A: what size mast are you using both OD and
> Length B: what antenna do you plan to install ?
>
> Why That top section can be used with the rotor shelf on the top set of
> rungs of the Rohn 25.
> But that's ok if were talking about a C-3, A-3 TA 33 ect. but if your
> going BIGGER the problem comes when it's time to repair or replace the rotor
>
> The little stub is hard to keep centered by your TB3 .... if you lower it
> far inside the #25 the cross rungs can become a problem.
>
> Wayne W3EA
>
>
>> Date: Tue, 26 Nov 2013 11:44:01 -0800
>> From: turvin2009@yahoo.com
>> To: towertalk@contesting.com
>> Subject: [TowerTalk] Rotor location
>>
>> I now have my Rohn 25 tower assembled awaiting my concrete to cure before
>> erecting.
>> I am getting ready to mount my rotor. At the top of the Rohn 25 sections I
>> am using A BPL25G thrust bearing assembly section which has the top plate
>> approximately 18" above the 1st section of cross members. My plan is to
>> place the rotor at the 2nd set of cross members on the top section.
>> Is this a good distance from the thrust bearing? If not, how much spacing do
>> I need and why?
>> Thank you in advance for the advice. Wanting to make sure I do this as best
>> as possible.
>> 73 NR6M
>>
>>
>>
>> ex: KF7NMD
>>
>>
>> Sincerely,
>>
>>
>> Rex Turvin
>> www.nr6m.com
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|