Date: Thu, 5 Jan 2017 17:28:44 +0000 (UTC)
From: GEO Badger <w3ab@yahoo.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Datasheet for Rohn TA-55
Charlie,
I assume you want one with dimensions?
Here is a page from their 55G catalog, but no dim.
http://www.w3ab.org/Documents/ROHN/Rohn%20TA55.pdf
## heres the part that I dont get. The 6 point guy system will reduce on the
tower
where the..cue rack is installed... almost down to nothing. Is torque even an
issue ?
## these rotating towers all use rings..and the typ 3 guy wires per ring..are
attached to the
ring.... not to the tower. IE: There is nothing to stop the tower from
torquing at all !
The guy wires on the rotating towers just hold up and support the tower, they
dont provide
any torque redux at all. Then folks install 188-220 ft tall rotating tower
assys... with the
usual myriad of large HF yagis on them, typ with a 80m yagi at the very top.
## meanwhile the rotor is at the very bottom, like on the K0XG setups. The
tower appears
to me to be one big.... mother of all torque wrenches. The myriad of yagis are
all bolted to
the same tower face too. How much to these rotating towers actually twist in
high winds ???
## If twist is a non issue on a rotating tower, then why even mess with the
...cue-rack..aka
rohn TA55 assy at all ?? What am I missing here ?
Jim VE7RF
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|