Re: [amsat-bb] Rohn / Radian clarification

["Edward R. Cole" <al7eb@xxxxxxxxxxxxx>]

At 11:41 AM 6/3/2005 -0400, Joe Fitzgerald wrote:
>Edward R. Cole wrote:
>
>> 
>> My supplier did caution me that they were unsure of the quality of the
>> replacement source of Rohn products they were receiving. 
>
>It would be hard to do much worse than the original Rohn TB25.  I have 
>seen 20 or 30 of these in service, and _every one_ of them has had the 
>casting crack at the holes where the three bolts that hold the mast in 
>place go through.
>
>-Joe KM1P
>----

Joe,

Hmm...my thrust bearing for my Glen Martin Hazer-4 uses six set bolts
around the bearing so I guess is isn't the same bearing.  Mine has been up
for six years holding four 21-foot cross-element 2m yagis on a 12-by-12
foot "H-frame".  Nearly 70-lbs. dead weight  and near 16 sq-ft wind area.
Absolutely no problem with the thrust bearing.


73's,
Ed - KL7UW  <new call>
===================================
BP40iq,  Nikiski, AK      http://www.qsl.net/al7eb
Amsat #3212
Modes: V - U - L - S
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