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Re: [TowerTalk] Does a M2 Orion 2800 fit in a LM354HD top section?

Subject: Re: [TowerTalk] Does a M2 Orion 2800 fit in a LM354HD top section?
From: K4SAV <>
Date: Wed, 19 Mar 2008 18:03:13 -0500
List-post: <">>
Are you sure you didn't get a metric number mixed in with the English 
numbers?  Using Yaesu's method of figuring the K factor, I get 3264 
ft-lbs for the antennas you have.  The G-2800DXA is rated for 6870 
ft-lbs.  You are at 47% of the rating.

Jerry, K4SAV

John Elsik wrote:

>I have a new LM354HDSP crankup tower.  I got the tower up, back in late 
>November.  That is where the project stopped for the winter.  All it is 
>holding up is an inv vee for 80 mtrs right now.
>The antennas are a 4el SteppIR and a Cushcraft XM240 on a chrome moly mast. 
>Nothing is installed yet.
>I purchased a Yeasu 2800DXA rotor to turn it, but now having second thoughts 
>if the rotor will handle it long term. The "K" factor is 85% of the published 
>rotor rating.
>I called Yeasu and they told me to take the weight off the rotor.  They 
>suggested adding a second plate and bearing between the rotor and tower top 
>bearing, and take the weight off.  Sure did not come away with a warm and 
>fuzzy feeling that the rotor would handle the load.
>So I am taking pause and sort of rotor shopping.  I realize I would take a hit 
>selling the Yeasu.  I would rather be safe than sorry later.
>I was looking at the M2 Orion 2800 (rotor only) and a Green Heron controller.
>Will the Orion fit in a LM354HD top section?  I called Tashjian and they could 
>not answer that.


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