[TowerTalk] Tower/mast question

WA9ALS - John jfleming@shelbynet.net
Tue, 23 May 2000 12:23:25 -0500


What is the tower, ie a GME or Rohn xx?  What did GME say, and what does
LXC's rotor mast calculator thing say?  You can't answer these kind of
questions with just an "educated guess" - it has to be calculated and then
it either fits into the specs or it doesn't.
---------------------------------
WA9ALS - John
jfleming@shelbynet.net
http://www.qsl.net/wa9als
---------------------------------
----- Original Message -----
From: Ted Sarah <w8tts@gwis.com>
To: Tower Talk <towertalk@contesting.com>
Sent: Tuesday, May 23, 2000 10:32 AM
Subject: [TowerTalk] Tower/mast question


>
> I currently have a Glen-Martin hazer on a tower with a Mosley
> TA33-JR-N-WARC mounted just above a thrust bearing, which is about 3'
> above the
> G-8000S rotor.  What I would like to do is add a mast to this, so that
> there is
> an additional 10 feet above the top of the hazer thrust bearing, and
> mount the
> TA-33 at the top of the mast.  This would do a number of things for me
> including being able to adjust the height of the antenna a little,
> getting the
> antenna 10' higher without adding tower, and as I do now being able to
> lower the antenna if there is a high wind warning.  Yes I know, the wind
> load on the antenna (96lbs at 80MPH) isn't much, but better safe than
> sorry.
>
> Now my questions.  Is it safe to go that high above the thrust bearing,
> which is a Glen-Martin, with a mast and antenna?  And, I'm looking at
> using 1-1/4" Schedule 80 pipe for the mast, is this over kill?
>
> TNX in advanced,
>
> 73 - Ted - W8TTS
>
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>


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