[TowerTalk] Datasheet for Rohn TA-55

[Jim Thomson]

Date: Thu, 5 Jan 2017 17:28:44 +0000 (UTC)
From: GEO Badger <w3ab at yahoo.com>
To: "towertalk at contesting.com" <towertalk at 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